SEI CORP
10-K, 1999-03-29
SECURITY BROKERS, DEALERS & FLOTATION COMPANIES
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<PAGE>
 
                                SECURITIES AND
                              EXCHANGE COMMISSION
                            Washington, D.C.  20549

                                   =========
                                        
                                   FORM 10-K

(Mark One)
[X]  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
     ACT OF 1934

For the fiscal year ended:             DECEMBER 31, 1998
                           -----------------------------------------------------

                                      OR
 
[ ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934

For the transition period from __________________ to _________________________


                    Commission file number     0  -  10200
                                           --------------------
                                        
                            SEI INVESTMENTS COMPANY
- - --------------------------------------------------------------------------------
            (Exact name of registrant as specified in its charter)

        PENNSYLVANIA                                         23-1707341
- - -----------------------------------------------   ------------------------------
 (State or other jurisdiction of incorporation     (IRS Employer Identification 
              or organization)                              Number) 
 
 1 FREEDOM VALLEY DRIVE, OAKS, PENNSYLVANIA                  19456-1100
- - -----------------------------------------------   ------------------------------
(Address of principal executive offices)                     (Zip Code)
 
  Registrant's telephone number, including                  610-676-1000
                 area code                        ------------------------------

Securities registered pursuant to Section 12(b) of the Act:
                                                         
                                                 Name of Each Exchange on Which
                Title of Each Class                         Registered
                -------------------               ------------------------------
                       NONE


Securities registered pursuant to Section 12(g) of the Act:

                    COMMON STOCK, PAR VALUE $.01 PER SHARE
- - --------------------------------------------------------------------------------
                               (Title of class)

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days.  Yes  X   No ___
                                        ---         

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [ ]

                           (Cover page 1 of 2 pages)
                           Exhibit Index on Page 64
                              Page 1 of 135 Pages

                                                                               1
<PAGE>
 
State the aggregate market value of the voting stock held by non-affiliates of
the registrant based on the closing price of such stock as reported by NASDAQ as
of February 26, 1999: $1,272,785,000. For purposes of making this calculation
only, registrant has defined affiliates as including all directors and
beneficial owners of more than ten percent of the common stock of the
registrant.


       APPLICABLE ONLY TO REGISTRANTS INVOLVED IN BANKRUPTCY PROCEEDINGS
                       DURING THE PRECEDING FIVE YEARS:
                                        
Indicate by check mark whether the registrant has filed all documents and
reports required to be filed by Section 12, 13, or 14(d) of the Securities
Exchange Act of 1934 subsequent to the distribution of securities under a plan
confirmed by a court.
Yes __________   No __________


                   APPLICABLE ONLY TO CORPORATE REGISTRANTS:
                                        
Indicate the number of shares outstanding of each of the registrant's classes of
common stock, as of February 26, 1999: 17,874,121.


                     DOCUMENTS INCORPORATED BY REFERENCE:
                                        
Portions of the following documents are incorporated by reference herein:

     1.   Notice of and Proxy Statement for the 1999 Annual Meeting of
          Shareholders to be filed within 120 days after the end of the fiscal
          year covered by this annual report, incorporated by reference in Part
          III hereof.


                           (Cover page 2 of 2 pages)


                                                                               2
<PAGE>
 
                                    PART I
                                    ------


ITEM 1.  BUSINESS.
         -------- 

General Development of Business
- - -------------------------------

SEI Investments Company ("SEI") was incorporated in Pennsylvania in 1968. SEI
Investments Distribution Company ("SIDCO"), SEI Investments Management
Corporation ("SIMC"), and SEI Trust Company ("SEI Trust") are the principal
wholly owned subsidiaries of SEI. SIDCO is a broker-dealer registered
with the Securities and Exchange Commission ("SEC") under the Securities
Exchange Act of 1934 and is a member of the National Association of Securities
Dealers, Inc. SIMC is an investment advisor registered with the SEC under the
Investment Advisers Act of 1940. SEI Trust is a trust entity chartered in the
Commonwealth of Pennsylvania.

At the time of SEI's initial public offering in March 1981, its principal
business activity was providing an on-line, real-time accounting and management
information system to bank trust departments. This service is offered today
through the TRUST 3000 product line. An extension of the trust technology
product line is provided through SEI Trust, offering complete back-office
accounting and processing services to trust institutions which allows them to
outsource their trust operations and related investment functions.

In 1982, SEI, through SIDCO and SIMC, began to sponsor a number of institutional
investment products, primarily in the form of registered investment companies
sold to institutional investors and financial intermediaries. These subsidiaries
also provide various asset management services to institutional investors and to
high-net-worth individuals. These services include programs created to help
clients establish asset allocation strategies and to gain access to top-quality
investment managers. SEI has expanded its asset management services outside the
United States by targeting selected foreign markets for its investment
management programs.

SIDCO and SIMC also provide a full range of administration and distribution
services to proprietary mutual funds established for banks and other financial
institutions and intermediaries. The client serves as the investment advisor for
the proprietary funds, and the funds are sold primarily to customers of the
client.

                                                                               3
<PAGE>
 
Industry Segments
- - -----------------

Starting in 1998, we report financial information through four business lines:
Technology Services, Mutual Fund Services, Asset Management, and Investments in
New Business. These business segments reflect how management measures financial
information internally. The Technology Services segment, which accounted for 45
percent of consolidated revenues in 1998, includes the TRUST 3000 product line
and trust operations outsourcing. The Mutual Fund Services segment, which
accounted for 27 percent of consolidated revenues in 1998, includes proprietary
funds administration and distribution services created for banks, money managers
and other financial institutions. The Asset Management segment, which accounted
for 25 percent of consolidated revenues in 1998, consists of the distribution of
asset management products to the institutional and high-net-worth markets.
Investments in New Business, which accounted for 3 percent of consolidated
revenues in 1998, consists of our Canadian and international operations.

Financial information about each business segment is contained in Note 12 of the
Notes to Consolidated Financial Statements in Item 8. Additional financial
information and discussion about each business segment, including a breakdown of
revenues by product line, is contained in Management's Discussion and Analysis
of Financial Condition and Results of Operations in Item 7.

TECHNOLOGY SERVICES
- - --------------------

          Trust Technology Services

Through SIMC, we provide trust and investment accounting and management
information services as an outsourcer to financial institutions with our TRUST
3000 product line. The success of TRUST 3000 is tied to its reliability, broad
functionality and open architecture system. TRUST 3000 provides banks with
comprehensive software capabilities to manage investments for their personal and
institutional trust clients. TRUST 3000 is a complete trust accounting and
investment system with fully automated securities movement and control linked
directly to the Depository Trust Company. TRUST 3000 offers investment
management functionality through a number of integrated products and sub-systems
that supports investment accounting, client administration, portfolio analysis,
and trade order processing for both domestic and global securities processing.
TRUST 3000 also provides access to multiple third-party pricing and asset
related information. Trust and investment processing services are provided
through a state-of-the-art data communications network that is internally
managed. Clients utilize terminals and workstations that are connected through
this network to access our data center.

The value of the TRUST 3000 product line has been further enhanced by the
introduction of the StrataQuest product line. StrataQuest is a flexible
combination of modular workstation application products that transform data into
user-friendly customer service and investment analysis desktop applications.
StrataQuest also provides technology platform products that manage the flow of
data and allow for the integration of TRUST 3000 information with other
financial institution systems in an open systems architecture. This product
provides standard, efficient, and reliable interfaces that update and retrieve
TRUST 3000 information from any application operating in the customer's
distributed computing environment. StrataQuest may be installed on the client's
processor or provided in a service bureau environment through our network at our
data center.

Beginning in 1982, we began offering liquidity products to bank trust
departments. Clients that use the TRUST 3000 product line can effect purchases
and redemptions through an automated subsystem that performs daily sweeps of
trust accounts and invests the available cash in one or more of our liquidity
investment products. Bank clients can also invest in the SEI Tri-Party
Repurchase Agreement program that offers competitive yields for short-term
investing.

Money manager and TRUST 3000 clients remit payment for services rendered in cash
or, subject to applicable regulatory guidelines, by directing brokerage
commissions to SIDCO through SEI-approved clearing agents or clearing brokers.
These clients may also apply a portion of such directed brokerage commissions to
defray certain other third-party costs. As a result of the directed brokerage
business, revenues may be affected by changes in market trading volume or
changes in government regulations affecting directed brokerage payments.

                                                                               4
<PAGE>
 
The market for our trust accounting and management information services consists
primarily of bank trust departments managing assets between $10 million and $100
billion. There are approximately 1,500 trust departments of this size. At
December 31, 1998, we were providing processing or software services to
approximately 92 trust departments, including trust departments of 20 of the top
60 banks, primarily located throughout the United States. We segregate the trust
accounting and information services market by trust assets under management: $20
billion or more in managed assets; $750 million to $20 billion in managed
assets; and under $750 million in managed assets. Each of these three trust
accounting and management information services markets are characterized by
different pricing, service, and product parameters. We endeavor to offer a full
range of products and services suitable for each. Customers generally contract
for terms of three to seven years and revenues are based on monthly processing
and software application service fees.

Principal competitors offering trust accounting and processing services are
Fidelity-Trust Technology Services LLC, SunGard Data Systems, and Marshall and
Isley, as well as numerous financial institutions that operate their own trust
processing systems. In addition, consolidations in the banking industry may
reduce the number of bank prospects and/or eliminate customers from our user
base. In terms of both revenues and number of trust accounts processed, the
TRUST 3000 product line is the leading trust accounting and management system
sold by third-party vendors to bank trust departments. With regard to the TRUST
3000 product line, the most important factors in a potential customer's
evaluation and choice of vendor are: product and service reliability; security
and risk; functional capability; ease of use and future flexibility; value; and
cost effectiveness. A vendor's experience in, and commitment to, the financial
industry is also considered. Revenues from trust technology services accounted
for approximately 41 percent of consolidated revenues in 1998.

     Trust Operations Outsourcing

In 1994, we began to expand our trust technology product line by offering trust
back-office processing to assist those who wish to outsource their trust
department operations and processes. We provide back office services, which
include trust operations, asset management, and custody. Our outsourcing is the
integration of well-defined processes, along with fully automated, on-line, 
real-time accounting, control, and reporting systems. This level of outsourcing
provides trust institutions with access to TRUST 3000, along with processing,
reporting, and custody services provided through the specialized capabilities of
SEI Trust personnel. SEI Trust automates and centralizes the client's trust
accounting, income collections, securities settlement, and securities processing
functions. In addition, SEI Trust prepares and processes customer statements,
investment reviews, and employee benefit accrual reports and remittances to the
clients' customers.

Initially, community banks were the target market for this product. However, as
the concept of outsourcing has gained credibility and acceptance within the
industry, banks of all sizes are recognizing the value in outsourcing their
trust operations. The market for our trust operations outsourcing consists
primarily of bank trust departments ranging in size from start-ups to those
managing assets of $10 billion, and selected business lines of trust departments
up to $100 billion in assets. We also believe there is a market for these
services in non-bank financial institution channels. The term of the contracts
varies from three to five years. At December 31, 1998, we had contracts to
perform trust operations outsourcing services to 62 clients.

The major strategic issue facing this product line is the continued
consolidation of the banking industry, which may reduce the number of potential
bank prospects and/or eliminate customers from our user base. Currently, the
only significant competitor in this market is Marshall and Isley. Additional
competitors can be expected over the next few years. Revenues from trust
operations outsourcing accounted for approximately 4 percent of consolidated
revenues in 1998.

                                                                               5
<PAGE>
 
MUTUAL FUND SERVICES
- - --------------------

In 1990, through SIDCO and SIMC, we began providing administrative and
distribution services to bank proprietary mutual funds that were sold primarily
to bank customers for which the bank served as investment advisor. Today, we
provide a full range of services to banks as well as, insurance firms, and
investment management companies. Services include fund administration and
accounting, legal and regulatory compliance, and shareholder recordkeeping
services. Distribution services range from assistance with strategic business
planning to product development through marketing program development and
execution. We assist our clients with identifying distribution opportunities and
establishing product and program strategies that cross retail and institutional
markets.

The market for fund services and products consists primarily of banks, insurance
companies, and investment managers. At the end of 1998, there were approximately
105 bank proprietary fund complexes that existed in the United States. As of
December 31, 1998, we provided fund services to 35 banks, investment management
companies, and insurance firms with proprietary mutual fund assets of
approximately $133.4 billion. Additionally, we maintain an office in Dublin,
Ireland that offers administrative services, distribution consulting services,
and marketing support services to fund complexes in international markets.

Contracts with mutual fund complexes have initial terms ranging from two to five
years. Principal competitors for mutual fund services include The BISYS Group,
Federated Investors, Inc., First Data Corporation, PFPC, and State Street Bank.
Potential customers of mutual fund services consider the price of such services,
the performance of its administrative and other support services such as legal
and marketing, and the integration of such services provided through our
proprietary software.

While banks are currently prohibited by banking laws from serving as the
principal underwriter to mutual funds, legislation has been proposed from time
to time to remove this restriction. If such legislation is passed, some banks
may consider performing some or all of these services themselves. In addition,
consolidations in the banking industry may reduce the number of bank proprietary
fund complexes in existence. In view of this phenomenon, we are vigorously
pursuing new market opportunities. Revenues from mutual fund services accounted
for approximately 27 percent of consolidated revenues in 1998.

ASSET MANAGEMENT

Through SIDCO and SIMC, we have created a number of investment products and
services for institutional investors and high-net-worth investors distributed
through investment advisors and other financial intermediaries. The initial
investment products, first distributed in 1982, were developed to meet the
liquidity requirements of bank trust departments utilizing the TRUST 3000
product line. In 1985, we began offering equity, fixed income, and tax-exempt
products. Currently, the products offered include a series of domestic equity,
fixed income, and tax-exempt mutual funds, separate account management, and
offshore funds. We employ a total investment management approach that utilizes a
quantitative asset allocation model and investment strategies based upon the
precepts of modern portfolio theory, specialist sub-advisors that we select and
monitor, and active risk management.

Through SIMC, we serve as the administrator, transfer agent, and fund accountant
for these products. We also acts as the investment advisor for many of these
products. The investment advisory and administration contracts between SIMC and
the funds are subject to renewal annually by the board of trustees of the funds.
These contracts provide for the payment of administrative fees based on a
percentage of the average daily net assets of each fund.

                                                                               6
<PAGE>
 
     Investment Management Fees

We began providing investment solutions to defined benefit plans, hospitals,
foundations, endowment funds, and other institutional investors in 1991. We
offer such investors an integrated investment program, which enables a pension
or other investment committee to outsource their investment management process
to us. We offer flexible investment strategies using a disciplined fund
management process and superior technology. We work with each client to develop
asset management strategies that are consistent with the client's business needs
and investment objectives. Consideration is given to the client's financial and
investment objectives, risk tolerance, investment restrictions, and time
horizon. Then, through the combination of the portfolio construction process,
multiple asset classes, and style allocations, we work toward the client's
investment goals. A client's strategy is implemented through our Family of Funds
that employ sub-advisors that are specialists in a particular style. We select
the best style-specific investment managers to act as sub-advisors and manage
each asset class. The potential benefit of this method is improved performance
with reduced volatility. This style-neutral approach eliminates the task of
attempting to estimate which style of equity investing will be in favor at any
point in time. Specialist-advisors are monitored for performance and so trading
strategies conform to predetermined market, sector, and style characteristics.
We maintain the asset class exposure within the specifically defined boundaries
of our client's asset allocation plan by incorporating a formal rebalancing
program in our asset management process utilizing state-of-the-art technology.
Overall, diversifying by asset class, manager style, sub-style, and sector tends
to reduce risk while improving the prospects for long-term growth. Clients also
have the ability to access specialized money managers through separate accounts.

We also offer asset management programs tailored to meet the needs of high-net-
worth individuals (defined as individuals with over $500,000 of investable
assets) and small institutions that are marketed through selected intermediaries
such as independent broker-dealers, registered investment advisors, financial
planners, life insurance producers, and bank trust departments. Our investment
philosophy focuses on four key principles: asset allocation, portfolio
structure, specialist investment and continuous portfolio management. Our asset
management strategies offer financial intermediaries various asset allocation
models that provide diversification among investment classes and periodic
rebalancing to achieve the investor's objectives. It also provides access to
institutional money managers normally not available to individual investors. We
offer a wide range of investment solutions including tax managed programs. We
also provide marketing assistance, sales support, investor reporting, and back-
office services such as custody and recordkeeping.

At December 31, 1998, there were approximately 1,900 clients invested in our
asset management programs through separate accounts or through our Family of
Funds with $18.1 billion in assets invested. The principal competition for our
asset management products is from other investment advisors and mutual fund
companies. Also, revenues are affected by changes in the value of securities
traded in various financial markets. Fees are earned as a percentage of average
assets under management. Revenues from investment management fees accounted for
approximately 21 percent of consolidated revenues in 1998.

     Liquidity Management Fees

We assist corporations in developing investment programs to meet their unique
cash flow needs by coordinating investment strategies with expected
disbursements. CashStrategies is a sophisticated system for managing corporate
cash that incorporates cash flow analytics with our proprietary software to
provide corporate treasurers with an effective solution in managing their cash
and investment portfolios. We help clients allocate their cash between liquid
and longer-term investments. Longer-duration cash is invested in one of our
Secondary Cash Investment Models, each providing an optimal balance of strong
yield and high liquidity. We help to implement the strategy and render ongoing
service and analytical support. We also offer the CashSweep program that enables
financial institutions to sweep excess balances from demand deposit accounts
into money market accounts. To build a successful sweep program, we combine
technology with our cash management investment products, cash management
services, marketing and consulting support.

Liquidity products consist primarily of money market and other short-term mutual
funds and our Repurchase Agreement Program ("REPO"). REPO permits institutions
to invest short-term funds in overnight and term tri-party repurchase agreements
and other overnight and short-term investment products. Clients may purchase or
redeem investment products and retrieve information about their accounts through
SEI Direct, or by telephone orders to SIMC.

                                                                               7
<PAGE>
 
The market for our liquidity products and services consist primarily of bank
trust departments, investment advisors, and corporations located in the United
States. The number of bank and non-bank clients utilizing our liquidity products
and services totaled approximately 600 at December 31, 1998. Total assets
invested in liquidity funds, including REPO, totaled $20.0 billion at December
31, 1998.

Principal competitors in liquidity products and services include Federated
Investors, Inc., Fidelity Management Corporation, Investors Fiduciary Trust
Company, and Goldman, Sachs & Co., and other mutual fund complexes that market
to institutional investors as well as individual bank proprietary and common
trust funds. A potential customer of liquidity services business considers the
price and performance of investment products and diverse product offerings, as
well as the ease of investment through the automated sweep system. Revenues from
liquidity management fees offered to investment advisors and corporations
accounted for approximately 4 percent of consolidated revenues in 1998.

INVESTMENTS IN NEW BUSINESS

We have several other operations that include performance evaluation and
consulting services to Canadian pension plans and other business ventures to
expand our asset management programs and services to high-net-worth investors,
pension plans, governmental organizations, and private corporations in foreign
countries.

Performance evaluation and other consulting services offered to Canadian pension
plans are provided through SEI Inc., a wholly owned subsidiary. We also support
money managers in managing their clients' investments through investment
performance evaluation services, as well as trading cost analysis and marketing
strategy review. The market for our consulting services consists mainly of
defined benefit plan sponsors and investment managers located in Canada. At
December 31, 1998, we were providing consulting services to approximately 400
defined benefit plan sponsors and investment managers.

Fund sponsor and money manager clients remit payment for performance evaluation
and consulting services in cash or, subject to applicable regulatory guidelines,
by directing brokerage commissions to SIDCO or SEI Inc. through SEI-approved
clearing agents or clearing brokers.  These clients may also apply a portion of
such directed brokerage commissions to defray certain other third-party costs.
As a result of the directed brokerage business, revenues may be affected by
changes in market trading volume or changes in government regulations affecting
directed brokerage payments.

We also formed an asset management company in Canada in 1994, Primus Capital
Advisors Co. ("Primus").  Primus is an investment counselor/portfolio manager
offering investment advisory services to both large and small Canadian defined
benefit pension plans.

We are currently establishing distribution channels for our asset management
programs in the global asset management marketplace through various acquisitions
and the startup of satellite offices outside the United States. Our approach is
to expand existing business lines into a coherent global business consistent
with our United States strategy of providing portfolio solution offerings rather
than product sales. Similar to the United States model, we design global
investment strategies and employ specialist money managers to implement these
strategies. We are also responsible for managing the allocation of assets among
the portfolio's specialist money managers and directing and evaluating the
investment services provided by these selected managers. Our efforts have
focused on establishing the business platform, which includes the delivery of
local investment management as part of a portfolio solution and local
distribution and marketing. In South Africa, we have assembled an investment
advisory team that markets institutional asset management programs to pension
and insurance industries. We also acquired established investment advisory firms
in Argentina and Mexico that offer asset management services to high-net-worth
investors. In addition, we have established a joint venture in Taiwan and Korea
that offers asset management solutions to institutions and high-net-worth
individuals.

The global market for financial services is highly competitive. Entering into a
foreign market requires a shift in perspective from a United States focus to
that of the other country. In addition, consideration must be given to the
regulatory and financial constraints that exist in a foreign market. Finally, it
can be difficult to overcome recognition and branding hurdles caused by lack of
a track record in a particular market. The way that we attempt to overcome these
obstacles is to purchase or partner with a local firm who already has an
established presence in the market. By partnering, we get a recognized name and
established customers. We also get access to a staff that speaks the language
and understands the culture, which helps us in making decisions about product
packaging and distribution strategies. Revenues from other investment products
and services accounted for approximately 3 percent of consolidated revenues in
1998.

                                                                               8
<PAGE>
 
OTHER

Equity Investments in Investees
- - -------------------------------

In 1994, we formed a partnership with three leading academics in the field of
finance. The partnership, LSV Asset Management ("LSV"), is a registered
investment advisor which provides investment advisory services to institutions,
including pension plans and investment companies. LSV is a value-oriented,
contrarian money manager that offers a deep-value investment alternative. LSV
utilizes a proprietary equity investment model to identify securities that are
generally considered to be out of favor. They identify stocks that exhibit 
below-average past performance and below-average market expectations for future
growth because these stocks typically produce superior future returns as their
future growth exceeds the pessimistic expectation of the market. LSV is
currently the specialist-advisor to a portion of SEI Large Cap Value Fund and
SEI Small Cap Value Fund. In addition, LSV is a portfolio manager to a portion
of our global investment products. Approximately 17% of the total assets managed
by LSV relate to our products. At December 31, 1998, our interest represented
approximately 45% of the partnership's total interests.

Marketing and Sales
- - -------------------

We employ 17 sales representatives in the Technology Services segment, 7 sales
representatives in the Mutual Fund Services segment, 40 sales representatives in
the Asset Management segment, and 27 sales representatives in the Investments in
New Business segment. These sales personnel operate from 18 offices located in
Oaks, Pennsylvania; San Francisco and Irvine, California; Chicago, Illinois;
Boston, Massachusetts; New York, New York; Dallas, Texas; Norcross, Georgia;
Toronto, Ontario; Montreal, Quebec; Vancouver, British Columbia; Halifax, Nova
Scotia; Zurich, Switzerland; Dublin, Ireland; Johannesburg, South Africa;
Causeway Bay, Hong Kong; Buenos Aires, Argentina, and Mexico City, Mexico.

Customers
- - ---------

We currently serve approximately 3,200 clients.  For the year ended December
31, 1998, no single customer accounted for more than 10 percent of revenues in
any industry segment.

Development of New Products and Services
- - ----------------------------------------

     Software products

We believe that service to existing and potential customers is enhanced by
substantial investment in improving existing software products and developing
new products and services for the financial industry. To sustain and enhance our
competitive position in the industry, we are committed to a continuous and high
level of expenditures for research and development. We currently utilize 238
professionals dedicated to the design, development, and enhancement of our
software products. New products are released when they are completed. The
benefit to the client is frequent, more manageable releases. Maintenance
releases generally occur four times each year.

During the year, we have continued to focus our product development efforts on
the StrataQuest open architecture product line. StrataQuest allows clients to
operate in a multi-platform environment using client/server installations. This
open architecture facilitates the development of new applications, as well as
expanding the upward functionality of our existing products to enhance their
attractiveness to even the largest clients. Also, StrataQuest has positioned us
for the installation of web based products. During 1998, we began to design our
web-browser technology platform using open architecture as the interface to
TRUST 3000. Clients will soon be able to access our services through the
Internet which offers several advantages. First, Internet and web-browser
technology dramatically alters the quality and responsiveness of information and
services that can be offered to end investors. Our clients can enhance the
relationships with their clients by using the web as a delivery mechanism.
Second, the web offers a lower cost infrastructure for our clients to deploy
services across professionals' desk-tops. Internet technology can allow clients
to access services remotely from home or on the road. Finally, Internet
technology gives clients far more flexibility and access from the desk-top to
multiple sources of information.

                                                                               9
<PAGE>
 
We expended, including amounts capitalized, approximately $24,866,000 (6.8
percent of revenues) in 1998, $22,500,000 (7.7 percent of revenues) in 1997, and
$26,254,000 (10.6 percent of revenues) in 1996 to design, develop, and modify
existing or new products and services.

     Investment products

We are looking to capitalize on international growth opportunities in the
investment management industry by expanding the distribution of investment
products and services through asset management solutions for institutions and
high-net-worth investors outside North America. Our strategy is designed to
capitalize on two major trends in the global marketplace: (1) the privatization
and globalization of pension funds, and (2) the increased wealth accumulation
among high-net-worth investors. Our marketing efforts have focused on four main
regions: Europe, East Asia, Latin America, and South Africa. In all four
regions, the initial strategy is to team with local partners to establish name
recognition and distribution channels for our products and services. Our global
asset management group has made significant progress during the past three
years, including the establishment of an offshore fund family in Ireland, the
creation of a distribution network and the acquisition of investment advisory
firms in Argentina and Mexico, a joint venture in Taiwan and Korea, and asset
management contracts signed with European pension plans and several South
African institutions.

     Year 2000

We began work on the Year 2000 issue in 1995 with management recognition that
failure to acknowledge, analyze and remediate potential Year 2000 processing
issues could result in material consequences to our clients and to the
perpetuation of our own business. Through May 1997, we focused our Year 2000
efforts on an assessment of our TRUST 3000 product line. In mid-1997, we
expanded our efforts to include a review of all proprietary systems, vendors,
internally used systems, and any other item that could be affected by the Year
2000. A Corporate Year 2000 Committee reports regularly to the Board of
Directors on the progress and status of the Year 2000 efforts.

The Corporate Year 2000 Committee is made up of representatives from every area
of our business and is managed by a full time senior project manager. The Year
2000 program encompasses all system hardware and software, physical facilities,
utilities, electronic equipment and communications, as well as all other
ancillary purchased products and services. Our Year 2000 program process fully
subscribes to the Federal Financial Institutions Examination Council (FFIEC)
guidelines.

We continue to do everything possible to mitigate any potential risk resulting
from the roll over to the Year 2000. However, there is the potential of
experiencing minor to moderate system issues at the beginning of the Year 2000.
In preparation for the century roll over, we will work closely with all clients
to instruct them on maintaining all year-end 1999 data for recovery purposes.
Current Year 2000 project expertise will remain dedicated to the Year 2000
program to be available to resolve all potential issues. We will budget funds
into the Year 2000 to support potential problems.

Our contingency planning efforts have been focused on the most critical business
functions and vary significantly based on the TRUST 3000 system and how it
operates. The contingency strategy for our own proprietary products, which
includes TRUST 3000, focuses on additional planned resources to react in the
Year 2000. A plan exists to identify, correct and release Year 2000 related core
and custom problems in the quickest fashion possible. Clients will be apprised
of the plan and advised on appropriate data retention (See Assessment of Risks
Associated with the Year 2000 in Management's Discussion and Analysis of
Financial Condition and Results of Operations).

                                                                              10
<PAGE>
 
Regulatory Considerations
- - -------------------------

Our subsidiaries, SIDCO and SIMC, are subject to various federal and state laws
and regulations that grant supervisory agencies, including the SEC, broad
administrative powers. In the event of a failure to comply with such laws and
regulations, the possible sanctions that may be imposed include the suspension
of individual employees, limitations on SIDCO's or SIMC's engaging in business
for specified periods of time, the revocation of SIDCO's or SIMC's registration
as a broker-dealer or investment advisor, censures, and fines. SEI Trust is
subject to laws and regulations imposed by state banking authorities. In the
event of a failure to comply with these laws and regulations, limitations may be
placed on the business of SEI Trust, or its license as a trust company may be
revoked.

We offer investment products that are also subject to regulation by the SEC and
state securities authorities, as well as non-U.S. regulatory authorities, where
applicable.  Existing or future regulations that affect these investment
vehicles or their investment strategies could impair their investment
performance and lead to a reduction in sales of such investment products.
Directed brokerage payment arrangements offered by us are also subject to SEC
and other federal regulatory authorities.  Changes in the regulation of directed
brokerage or soft dollar payment arrangements could affect sales of some
services, primarily our brokerage and consulting services.

Bank clients are subject to supervision by federal and state banking authorities
concerning the manner in which such clients purchase and receive our products
and services.  Plan sponsor clients are subject to supervision by the Department
of Labor and compliance with employee benefit regulations.  Investment advisor
clients are regulated by the SEC and state securities authorities.  Existing or
future regulations applicable to our clients may affect such clients' purchase
of our products and services.

Personnel
- - ---------

At February 28, 1999, we had 1,211 full-time and 98 part-time employees.  None
of our employees are represented by a labor union.  Management considers
employee relations to be good.

ITEM 2. PROPERTIES.
        ---------- 

Our corporate headquarters are located in Oaks, Pennsylvania. The corporate
campus consists of six buildings situated on approximately 90 acres. We own and
operate the land and buildings, which encompasses approximately 265,000 square
feet. Our data center and warehouse facility is housed in an additional 70,000
square feet of leased space in Wayne, Pennsylvania. We also lease an additional
67,500 square feet of space in Wayne for our mutual funds operation. All other
offices that we lease aggregate 43,000 square feet. Additionally, we own a New
York City condominium (3,400 square feet) used for business purposes.

ITEM 3. LEGAL PROCEEDINGS.
        ----------------- 

There are no legal proceedings to which we are a party or to which any of our
properties is subject which are expected to have a material adverse effect on
our business.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.
        --------------------------------------------------- 

There were no matters submitted to a vote of security holders during the fourth
quarter of 1998.

Information with regard to our executive officers is contained in Item 10 hereof
and is incorporated by reference to this Part I.

                                                                              11
<PAGE>
 
                                    PART II
                                    -------
                                        

ITEM 5. MARKET FOR THE REGISTRANT'S SECURITIES AND RELATED STOCKHOLDER MATTERS.
        ---------------------------------------------------------------------- 


Price Range of Common Stock:
- - --------------------------- 

SEI's common stock is traded in the NASDAQ National Market System under the
symbol SEIC.  The following table shows the range of closing sales prices on the
NASDAQ National Market System for the periods indicated.

<TABLE>
<CAPTION>
1998                          High                        Low
- - ----                          ----                        ---
<S>                         <C>                          <C>
First Quarter                69                          37
Second Quarter               76                          61
Third Quarter                80 1/2                      59 5/16
Fourth Quarter              100 1/2                      50 1/4


1997                          High                        Low
- - ----                          ----                        --- 

First Quarter                25 3/4                      20
Second Quarter               24 3/8                      18 3/4
Third Quarter                33 1/2                      24
Fourth Quarter               44 1/2                      32 3/4
</TABLE>


As of February 26, 1999, there were approximately 850 shareholders of record.
The Board of Directors declared a $.16 dividend in May and December of 1998, and
a $.14 dividend in May and December of 1997. The Board of Directors has
indicated its intention to pay future dividends on a semiannual basis.

                                                                              12
<PAGE>
 
ITEM 6.  SELECTED FINANCIAL DATA.
         ----------------------- 
(In thousands, except per share data)

The following table summarizes selected financial data for the five years in the
period ended December 31, 1998. The historical selected financial data for each
of the five years in the period ended December 31, 1998 are derived from, and
are qualified by reference to, the financial statements which are included with
Item 8 in this report. Such financial statements have been audited by Arthur
Andersen LLP, independent public accountants, to the extent indicated in their
reports. This data should be read in conjunction with the financial statements
and "Management's Discussion and Analysis of Financial Condition and Results of
Operations" included in this report.

<TABLE>
<CAPTION>
FOR THE YEAR                                                    1998         1997         1996        1995(A)      1994(A)
- - --------------------------------------------------------------------------------------------------------------------------
<S>                                                           <C>          <C>          <C>          <C>          <C>
Revenues..................................................    $366,119     $292,749     $247,817     $225,964     $205,051
Expenses:
   Operating and development..............................     180,937      148,536      129,776      115,366      110,504
   Sales and marketing....................................     103,834       84,770       68,719       58,892       48,561
   General and administrative.............................      13,463       13,931       13,235       16,963       16,919
                                                              --------     --------     --------     --------     --------
 
Income from operations....................................      67,885       45,512       36,087       34,743       29,067
Gain on sale of investments available for sale............          --           --        1,097           --           --
Equity in the earnings of unconsolidated affiliate........       3,015           --           --           --           --
Interest income...........................................       1,558          983          808        1,019          407
Interest expense..........................................      (2,575)      (2,488)         (48)        (255)         (33)
                                                              --------     ---------    --------     --------     --------
Income from continuing operations
   before income taxes....................................      69,883       44,007       37,944       35,507       29,441
Income taxes..............................................      26,904       17,163       14,798       14,381       11,188
                                                              --------     --------     --------     --------     --------
Income from continuing operations.........................      42,979       26,844       23,146       21,126       18,253
Income (loss) from discontinued operations................          --           --           --       (1,942)         997
Income (loss) from disposal of
   discontinued operations................................         710           --      (16,335)          --           --
                                                              --------     --------     --------     --------     --------
Net income................................................    $ 43,689     $ 26,844     $  6,811     $ 19,184     $ 19,250
- - --------------------------------------------------------------------------------------------------------------------------
Basic earnings per common share from
   continuing operations..................................    $   2.41     $   1.47     $   1.25     $   1.14     $    .97
Basic earnings (loss) per common share from
   discontinued operations................................         .04           --         (.88)        (.11)         .05
                                                              --------     --------     --------     --------     --------
Basic earnings per common share...........................    $   2.45     $   1.47     $    .37     $   1.03     $   1.02
Shares used to calculate basic earnings per
   common share...........................................      17,827       18,315       18,497       18,607       18,845
- - --------------------------------------------------------------------------------------------------------------------------
Diluted earnings per common share from
   continuing operations..................................    $   2.25     $   1.40     $   1.20     $   1.08     $    .91
Diluted earnings (loss) per common share from
   discontinued operations................................         .04           --         (.85)        (.10)         .05
                                                              --------     --------     --------     --------     --------
Diluted earnings per common share.........................    $   2.28     $   1.40     $    .35     $    .98     $    .96
Shares used to calculate diluted earnings per
   common share...........................................      19,126       19,236       19,364       19,554       20,101
- - --------------------------------------------------------------------------------------------------------------------------
Cash dividends declared per common share..................    $    .32     $    .28     $    .24     $    .20     $    .16
- - --------------------------------------------------------------------------------------------------------------------------
Year-end Financial Position:
Cash and cash equivalents.................................    $ 52,980     $ 16,891     $ 13,167     $ 10,256     $ 20,232
Total assets..............................................    $208,772     $168,884     $141,041     $101,347     $ 91,148
Short-term borrowings.....................................    $     --     $     --     $ 20,000     $     --     $    --
Long-term debt (including short-term portion).............    $ 33,000     $ 35,000     $     --     $     --     $    --
Shareholders' equity......................................    $ 59,685     $ 46,410     $ 56,108     $ 56,002     $ 51,309
- - --------------------------------------------------------------------------------------------------------------------------
</TABLE>

(A)  Information for 1995 and 1994 has been reported to reflect the SEI Capital
     Resources Division and the SEI Defined Contribution Retirement Services
     Division as discontinued operations. See Note 2 of the Notes to
     Consolidated Financial Statements.

                                                                              13
<PAGE>
 
ITEM 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
         -----------------------------------------------------------------------
OF OPERATIONS.
- - ------------- 
                     (In thousands, except per share data)

Management's discussion and analysis reviews the consolidated financial
condition at December 31, 1998 and 1997, the consolidated results of operations
for the past three years and, where appropriate, other factors that may affect
future financial performance. This discussion should be read in conjunction with
the Consolidated Financial Statements, Notes to the Consolidated Financial
Statements and Selected Financial Data.

We are organized around our four business lines: Technology Services, Mutual
Fund Services, Asset Management, and Investments in New Business. Financial
information on each of these segments is reflected in Note 12 of the Notes to
Consolidated Financial Statements included with Item 8 to this report.

RESULTS OF OPERATIONS
- - ---------------------

1998 COMPARED WITH 1997

CONSOLIDATED OVERVIEW
- - ---------------------

<TABLE>
<CAPTION>
INCOME STATEMENT DATA
(In thousands, except per common share data)                                                      PERCENT
                                                                     1998             1997         CHANGE
                                                                     ----             ----         ------  
<S>                                                                <C>              <C>           <C>  
Revenues:                                                                                          
   Technology Services Segment..................................   $164,648         $129,525         27%
   Mutual Fund Services Segment.................................     97,972           83,157         18%
   Asset Management Segment.....................................     90,056           61,871         46%
   Investments in New Business Segment..........................     13,443           14,439         (7%)
   Other........................................................         --            3,757       (100%)
                                                                   --------         --------
     Total revenues.............................................   $366,119         $292,749         25%

Operating Income (Loss):
   Technology Services Segment..................................   $ 49,170         $ 37,146         32%
   Mutual Fund Services Segment.................................     24,405           23,858          2%
   Asset Management Segment.....................................     18,091            3,281        451%
   Investments in New Business Segment..........................    (10,318)          (5,799)       (78%)
   Other........................................................    (13,463)         (12,974)        (4%)
                                                                   --------         --------
     Income from operations.....................................     67,885           45,512         49%

Other income (expense), net.....................................      1,998           (1,505)       233%
                                                                   --------         --------
Income from continuing operations
   before income taxes..........................................     69,883           44,007         59%

Income taxes....................................................     26,904           17,163         57%
                                                                   --------         --------
Income from continuing operations...............................   $ 42,979         $ 26,844         60%
                                                                   ========         ========

Diluted earnings per common share
   from continuing operations...................................   $   2.25         $   1.40         61%
                                                                   ========         ========

<CAPTION>
ASSET BALANCES
(In millions)
                                                                      As of December 31,          PERCENT
                                                                      ------------------
                                                                      1998            1997         CHANGE
                                                                      ----            ----         ------
<S>                                                                <C>              <C>           <C>
Assets invested in liquidity funds..............................   $ 19,971         $ 17,950         11%
Assets invested in non-liquidity mutual funds...................     24,994           14,347         74%
                                                                   --------         --------
   Assets under management......................................     44,965           32,297         39%

Client proprietary assets under administration..................    133,407           83,419         60%
                                                                   --------         --------
   Assets under administration..................................   $178,372         $115,716         54%
                                                                   ========         ========
</TABLE>

                                                                              14
<PAGE>
 
Revenues and earnings from continuing operations reached record levels in 1998
primarily due to the contracting of new trust technology clients, the
recognition of a substantial one-time buyout fee, and significant growth in fund
balances. Although consolidated revenues in 1998 were affected by the
recognition of significant one-time items, recurring revenues constitute
approximately 81 percent of total revenues. Technology Services and Asset
Management experienced significant increases in business activity beginning in
late 1997 and extending into 1998. The inclusion of significant one-time charges
and increased investments in several product lines curtailed earnings growth in
1998. Excluding the one-time buyout fee and one-time charges, revenue growth
would have approximated 21 percent and earnings growth would have approximated
37 percent. Revenues and earnings are expected to increase in 1999 assuming the
sales momentum in Asset Management can be sustained and once the new trust
technology clients are successfully implemented. However, continued
consolidation in the banking industry and a prolonged unfavorable change in the
financial markets could impede growth in revenues and earnings.

The effective tax rate from continuing operations was 38.5 percent for 1998, as
compared to 39.0 percent for 1997.  Income taxes are accounted for pursuant to
Statement of Financial Accounting Standards No. 109, "Accounting for Income
Taxes" (See Note 1 and Note 11 of the Notes to Consolidated Financial
Statements).

Assets under management consist of total assets invested in our liquidity (money
market and short-term mutual funds) and non-liquidity mutual funds (Family of
Funds) for which we provide management services.  Assets under administration
consist of total assets for which we provide management and administration
services, including client proprietary fund balances for which we only provide
administration services.

TECHNOLOGY SERVICES
- - -------------------

The Technology Services segment provides trust and investment accounting and
management information services as an outsourcer to banks and other financial
institutions with our TRUST 3000 product line.  TRUST 3000 incorporates a myriad
of integrated products and sub-systems to provide a complete trust accounting
and investment system.  

Trust operations outsourcing incorporates the TRUST 3000 product line within a
package of services that includes custody and other back-office capabilities.
Through this business, we handle a trust department's back-office administration
function. This allows trust department managers to concentrate on expanding and
servicing their clients.

<TABLE>
<CAPTION>
                                                                            DOLLAR        PERCENT
                                              1998           1997           CHANGE        CHANGE
                                              ----           ----           ------        ------
<S>                                         <C>            <C>             <C>            <C> 
Revenues:                                                                                 
Trust technology services................   $148,583       $119,378        $29,205          24%
Trust operations outsourcing.............     16,065         10,147          5,918          58%
                                            --------       --------        -------        
     Total revenues......................    164,648        129,525         35,123          27%
                                                                                          
Expenses:                                                                                 
Operating and development................     87,284         67,973         19,311          28%
Sales and marketing......................     28,194         24,406          3,788          16%
                                            --------       --------        -------        
                                                                                          
     Total operating profits.............   $ 49,170       $ 37,146        $12,024          32%
                                            ========       ========        =======
</TABLE>

Trust technology services revenues consists of the monthly processing and
software application fees from the TRUST 3000 product line, project fees
associated with the conversion of new clients onto the TRUST 3000 product line,
management fees for assets invested in our liquidity funds from bank clients,
and bank-related brokerage services. A significant one-time contractual buyout
fee from a client involved in an acquisition increased revenues in 1998. New
trust technology client relationships established in 1997 favorably affected
recurring processing fees by an incremental $9.3 million and nonrecurring
implementation fees by an incremental $6.0 million in 1998. Conversely, when a
client prematurely terminates its contract for processing services, recurring
processing fees are negatively affected in future periods and a one-time
contractual buyout fee is received. Buyout fees are recognized in income when
the client is completely removed from the TRUST 3000 product line. As a result
of lost trust technology clients in 1998, $15.0 million in one-time contractual
buyout fees were recognized and recurring processing fees decreased $7.0
million. Revenues earned from bank clients utilizing our liquidity products and
brokerage services increased 22 percent or $3.8 million, but only accounts for
approximately 16 percent of total trust technology services revenues recognized
in 1998 and 1997. The

                                                                              15
<PAGE>
 
recurring processing fee base is projected to increase as these new trust
technology clients are successfully implemented onto the TRUST 3000 product line
by mid-1999. Consolidations in the banking industry could provide additional
opportunities or could negatively affect future revenues depending on its effect
on our trust technology client base.

Trust operations outsourcing revenues experienced another year of strong growth.
Revenues are derived from processing and management fees.  Revenues earned from
processing services accounts for approximately 60 percent in 1998 and 55 percent
in 1997 of total trust operations outsourcing revenues, while custody and
investment solutions comprise the remaining 40 percent in 1998 and 45 percent in
1997.  Assets under custody were $38.8 billion at December 31, 1998 and $24.8
billion at December 31, 1997.  New client relationships established in 1998
provided significant growth in this business.

Although revenues from this segment increased 27 percent and operating profits
increased 32 percent during 1998, profit margin only increased slightly to 30
percent for 1998, as compared to 29 percent for 1997.  The contracting of new
clients and the recognition of a substantial one-time buyout fee increased
operating profits in 1998.  However, increases in operating expenses to maintain
these new client relationships and a one-time write-off of capitalized software
development costs negatively affected operating profits in 1998.  As a
percentage of sales, operating and development expenses increased slightly to 53
percent from 52 percent and sales and marketing expenses decreased slightly to
17 percent from 19 percent.

Operating and development expenses in 1998 increased mainly due to increased
business activity, a stronger commitment to enhancing products, the write-off of
previously capitalized software development costs, and the direct correlation
between bank-related brokerage services revenues and direct expenses.  The
contracting of new clients required additional personnel and other related
operating costs in order to properly implement, service, and maintain these new
relationships.  Additionally, substantial investments were incurred to analyze
and improve the implementation process for new clients.  These investments
included process redesign and infrastructure reinvention.

Operating and development expenses were significantly affected in 1998 due to
several factors associated with software development costs.  First, each year,
we evaluate strategies for new and existing software products, as well as
performing a recoverability assessment of software development projects
currently in production.  The recoverability assessment included an evaluation
of expected future revenues and cash flows, acceptability of the software
product in its target market, a cost-benefit analysis as to the delivery and
support of the software product, and any technological advancements that could
enhance or render the product obsolete.  As a result, certain projects were
considered either obsolete or incapable of achieving the expected results in 
their original design and approximately $4.8 million of net software development
costs previously capitalized were written off during the fourth quarter of 1998.
Second, in order to keep a competitive edge, substantial investments in research
and development costs for the TRUST 3000 product line were incurred during 1998.
Finally, with the completion and subsequent release of several capitalized
software development projects, amortization expense increased during 1998.

Operating profits are expected to increase in 1999.  This expectation is based
upon the fact that several new trust technology clients are near completion of
the implementation process, which should more than offset any negative effect on
operating profits from lost clients.  Once these clients are successfully
implemented, recurring processing fees are expected to increase without any
significant corresponding increase in variable costs.  Also, operating profits
should be favorably affected if sales momentum of the trust operations
outsourcing product continues.  Consolidations in the banking industry could
affect future operating profits depending on how our clients are affected.
                                                                              16
<PAGE>
 
MUTUAL FUND SERVICES
- - --------------------

The Mutual Fund Services segment provides administration and distribution
services to proprietary mutual funds created for banks, insurance firms, and
investment management companies.  These services include fund administration and
accounting, legal, shareholder recordkeeping, and marketing.

<TABLE>
<CAPTION>
                                                                           DOLLAR      PERCENT
                                              1998           1997          CHANGE      CHANGE
                                              ----           ----          ------      ------
<S>                                         <C>            <C>            <C>          <C>
Total revenues...........................   $97,972        $83,157        $14,815        18%
                                                                                         
Expenses:                                                                                
Operating and development................    55,897         44,173         11,724        27%
Sales and marketing......................    17,670         15,126          2,544        17%
                                            -------        -------        -------        
                                                                                         
     Total operating profits.............   $24,405        $23,858        $   547         2%
                                            =======        =======        =======
</TABLE>

Mutual fund services revenues are earned through administrative fees that are
based upon a fixed percentage, referred to as basis points, of the average daily
net asset value of the proprietary funds.  The amount of basis points earned is
specific to each proprietary fund complex and can vary among complexes.  The
increase in revenues was primarily fueled by growth in existing complexes and
the conversion of a large bank complex in 1998.  Average proprietary fund
balances increased $27.1 billion or 37 percent to $100.4 billion for 1998 versus
$73.3 billion for 1997.  Growth in average proprietary fund balances resulted
from banks being able to successfully convince their customers to invest assets
into bank sponsored mutual funds. Average basis points earned decreased in 1998
primarily due to a reduction in pricing for some larger clients in order to
solidify long-term relationships and the loss of some higher margin
relationships. However, the outlook for mutual fund services revenues remains
optimistic. Increased emphasis in the non-bank and offshore markets has produced
some positive results. Some recent successes achieved in the non-bank and
offshore markets included: the signing of a large non-bank client in mid-1998
that will fund approximately $7 billion in assets by early 1999, and increased
business activity offshore.

Although revenues increased 18 percent, operating profits only increased 2
percent.  Profit margin in 1998 decreased to 25 percent, as compared to 29
percent for 1997.  A significant increase in operating and development expenses
negatively affected operating profits in 1998.  As a percentage of sales,
operating and development expenses increased to 57 percent from 53 percent.  Two
primary factors contributed to this increase.  There is a direct correlation
between revenues and certain direct expenses.  The increase in revenues during
1998 generated an incremental $7.0 million in direct proprietary expenses.
Also, with the increased business activity and emphasis on other markets, back-
office operational costs increased, in order to maintain quality service for
existing clients and to establish distribution channels and name recognition
internationally. As a percentage of sales, sales and marketing expenses remained
flat at 18 percent for 1998 and 1997.

The combination of reduced pricing for some larger clients, the loss of some
higher margin relationships, and increased operating costs decreased profit
margin in 1998.  Profit margin is expected to remain relatively flat in 1999.
Expanding services into the non-bank and offshore markets could produce
additional opportunities.  However, continued consolidations in the banking
industry and a significant prolonged unfavorable change in the financial markets
could negatively affect revenues and profits.

                                                                              17
<PAGE>
 
ASSET MANAGEMENT
- - ----------------

The Asset Management segment provides investment solutions through various
investment products and services distributed directly or through professional
investment advisors, financial planners, and other financial intermediaries to
institutional or high-net-worth markets.  The primary products offered include
money market funds and investment strategies and portfolios delivered to these
markets through mutual funds and other pooled vehicles.

<TABLE>
<CAPTION>
                                                                             DOLLAR        PERCENT
                                              1998            1997           CHANGE         CHANGE
                                              ----            ----           ------         ------
<S>                                         <C>             <C>             <C>            <C>
Revenues:                                                                                  
Investment management fees...............   $75,669         $51,188         $24,481            48%
Liquidity management fees................    14,387          10,683           3,704            35%
                                            -------         -------         -------        
     Total revenues......................    90,056          61,871          28,185            46%
                                                                                           
Expenses:                                                                                  
Operating and development................    27,460          25,488           1,972             8%
Sales and marketing......................    44,505          33,102          11,403            34%
                                            -------         -------         -------        
                                                                                           
     Total operating profits.............   $18,091         $ 3,281         $14,810           451%
                                            =======         =======         =======
</TABLE>

Investment management fees are earned through management fees that are based
upon a fixed percentage, referred to as basis points, of the average daily net
asset value of assets under management.  Substantial increases in average assets
under management generated the 48 percent increase in revenues.  Average assets
under management increased $5.1 billion or 53 percent to $14.7 billion during
1998, as compared to $9.6 billion during 1997.  Investment solutions offered to
high-net-worth investors through registered investment advisors, financial
planners, and other financial intermediaries produced strong sales gains during
1998.  These gains result from a unique product that allows the investment
advisor to dedicate more effort to increasing assets rather than administering
record-keeping and processing tasks.  Additionally, many new institutional
clients were contracted for services in 1998.  The sales momentum established in
the registered investment advisors market is projected to continue.

Liquidity management fees consist of our money market, short-term mutual funds
and cash sweep technology that are marketed to corporations and investment
firms.  The 35 percent increase in liquidity management fees was mainly driven
by an increase in average assets under management and increased sales of the
cash sweep technology product.

The Asset Management segment experienced a significant increase in operating
profits primarily due to growth in assets under management.  Profit margin in
1998 also improved substantially.  Profit margin rose to 20 percent for 1998, as
compared to 5 percent for 1997.  As a percentage of sales, operating and
development expenses decreased to 31 percent from 41 percent and sales and
marketing expenses decreased to 49 percent from 54 percent.  Our ability to
leverage on our infrastructure resulted in improved margins as revenues
increased with minimal incremental variable operating costs.  With the increased
sales momentum and the ability to leverage on our infrastructure, this segment
is expected to produce favorable operating results in 1999.  However, any
significant devaluation in the financial markets could negatively affect
revenues and profits.

                                                                              18
<PAGE>
 
INVESTMENTS IN NEW BUSINESS
- - ---------------------------

Investments in New Business consist of our Canadian and international
operations.  Products being offered in Canada include investment advisory,
performance evaluation and other consulting services to Canadian pension plans.
International operations consist of various investment products and services
providing investment solutions to institutional and high-net-worth investors
outside North America.

<TABLE>
<CAPTION>
                                                                             DOLLAR          PERCENT
                                               1998            1997          CHANGE          CHANGE
                                               ----            ----          ------          ------
<S>                                          <C>              <C>            <C>             <C>
Total revenues...........................    $ 13,443         $14,439        $  (996)            (7%)
                                                                                             
Expenses:                                                                                    
Operating and development................      10,296           8,102          2,194             27%
Sales and marketing......................      13,465          12,136          1,329             11%
                                             --------         -------        -------         
                                                                                             
     Total operating losses..............    $(10,318)        $(5,799)       $(4,519)           (78%)
                                             =========        ========       =======
</TABLE>

Our Canadian operations are experiencing a transition in product demand.  The
performance evaluation and consulting business experienced another year where
client terminations exceeded new client contracting.  The investment advisory
business in Canada is gaining momentum as evidenced by revenues and assets under
management increasing in 1998.  As a percentage of total segment revenues, the
performance evaluation and consulting business accounted for approximately 57
percent in 1998, as compared to 62 percent in 1997, and the investment advisory
business accounted for approximately 19 percent in 1998, as compared to only 8
percent in 1997.

Our offshore enterprises are looking to capitalize on international growth
opportunities by creating distribution channels for our investment products and
services outside North America.  Our efforts are currently focused on four main
regions: Europe, East Asia, Latin America, and South Africa.  As a percentage of
total segment revenues, these offshore enterprises accounted for approximately
22 percent in 1998, as compared to 16 percent in 1997.  Revenues from any one
region were immaterial as a percentage of total segment revenues.

Operating results were affected by substantial investments made in foreign
markets.  Our strategy is to team with local partners to establish name
recognition and distribution channels for our investment products and services.
Additionally, operating results were negatively affected by $2.7 million
associated with the write-off of customer lists from a foreign acquisition (See
Note 5 of the Notes to Consolidated Financial Statements).  Continued investment
into offshore arenas will remain the primary focus for this business segment.

OTHER
- - -----

In 1994, we found a partnership, LSV Asset Management ("LSV"), with three
leading academics in the field of finance. Our interest in LSV at that time was
51 percent. LSV is a registered investment advisor which provides investment
advisory services to institutions, including pension plans and investment
companies. LSV is currently the investment sub-advisor to a portion of SEI Large
Cap Value Fund and SEI Small Cap Value Fund, as well as portfolio manager to a
portion of our global investment products. In 1997, LSV was consolidated into
our operating results. LSV reported $3,757 in total revenues and operating
profits of $957.

Beginning in the first quarter of 1998, our interest in LSV was reduced from 51
percent to approximately 45 percent. As a result, LSV must be accounted for
using the equity method of accounting. The vested interest in the net operating
results of LSV for 1998 is reflected in Equity in the earnings of unconsolidated
affiliate on the accompanying Consolidated Statements of Operations. Our
interest in LSV's net earnings for 1998 was $3,015.

                                                                              19
<PAGE>
 
General and administrative expenses decreased 3 percent to $13,463 for the year
ended December 31, 1998 from $13,931 for the year ended December 31, 1997.  As a
percentage of total consolidated revenues, general and administrative expenses
were 4 percent in 1998, as compared to 5 percent in 1997.  The decrease in
general and administrative expenses is primarily due to a reduction in personnel
costs in corporate overhead groups.

Interest income for the year ended December 31, 1998 was $1,558, as compared to
$983 for the year ended December 31, 1997.  Interest income is earned based upon
the amount of cash that is invested daily and fluctuations in interest income
recognized for one period in relation to another is due to changes in the
average cash balance invested for the period.

Interest expense for the year ended December 31, 1998 was $2,575, as compared to
$2,488 for the year ended December 31, 1997.  Interest expense primarily relates
to the issuance of long-term debt in early 1997 (See Note 7 of the Notes to
Consolidated Financial Statements).

                                                                              20
<PAGE>
 
1997 COMPARED WITH 1996


<TABLE>
<CAPTION>
INCOME STATEMENT DATA
(In thousands, except per common share data)                                                         PERCENT
                                                           1997                  1996                CHANGE
                                                           ----                  ----                ------
<S>                                                        <C>                   <C>                 <C>
Revenues:
   Technology Services Segment........................   $129,525              $128,025                  1%
   Mutual Fund Services Segment.......................     83,157                62,874                 32%
   Asset Management Segment...........................     61,871                46,184                 34%
   Investments in New Business Segment................     14,439                10,354                 39%
   Other..............................................      3,757                   380                889%
                                                         --------              --------               
     Total revenues...................................   $292,749              $247,817                 18%
                                                                                                      
Operating Income (Loss):                                                                              
   Technology Services Segment........................   $ 37,146              $ 43,309                (14%)
   Mutual Fund Services Segment.......................     23,858                15,874                 50%
   Asset Management Segment...........................      3,281                (2,971)               210%
   Investments in New Business Segment................     (5,799)               (6,559)                12%
   Other..............................................    (12,974)              (13,566)                 4%
                                                         --------              --------               
     Income from operations...........................     45,512                36,087                 26%
                                                                                                      
Other income (expense), net...........................     (1,505)                1,857               (181%)
                                                         --------              --------
Income from continuing operations                        
   before income taxes................................     44,007                37,944                 16%
                                                                                                      
Income taxes..........................................     17,163                14,798                 16%
                                                         --------              --------               
Income from continuing operations.....................   $ 26,844              $ 23,146                 16%
                                                         ========              ========
                                                         
Diluted earnings per common share                        
   from continuing operations.........................   $   1.40              $   1.20                 17% 
                                                         ========              ========

<CAPTION>  
ASSET BALANCES
(In millions)
                                                               As of December 31,                    PERCENT
                                                               ------------------
                                                           1997                 1996                 CHANGE
                                                           ----                 ----                 ------
<S>                                                      <C>                   <C>                   <C> 
Assets invested in liquidity funds....................   $ 17,950              $ 14,732                 22%
Assets invested in non-liquidity funds................   $ 14,347              $  9,050                 59%
                                                         --------              --------                 
   Assets under management............................   $ 32,297              $ 23,782                 36%
                                                                                                        
Client proprietary assets under administration........   $ 83,419              $ 61,380                 36%
                                                         --------              --------                 
   Assets under administration........................   $115,716              $ 85,162                 36%
                                                         ========              ========
 
</TABLE>

Revenues and earnings from continuing operations increased in 1997 primarily due
to strong growth in the Mutual Fund Services and Asset Management segments.  The
growth in these two segments was primarily fueled by significant growth in fund
balances.  However, the growth in revenues was partially offset by the
recognition of substantial one-time trust technology services revenues in 1996
due to bank clients involved in mergers and acquisitions.  Also in 1996, a $1.1
million one-time realized gain, or $.03 diluted earnings per common share, was
realized from the sale of an investment.

The effective tax rate from continuing operations was 39.0 percent for 1997 and
1996.  Income taxes are accounted for pursuant to Statement of Financial
Accounting Standards No. 109, "Accounting for Income Taxes" (See Note 1 and Note
11 of the Notes to Consolidated Financial Statements).

                                                                              21
<PAGE>
 
TECHNOLOGY SERVICES
- - -------------------

<TABLE>
<CAPTION>
                                                                           DOLLAR        PERCENT
                                             1997            1996          CHANGE        CHANGE
                                             ----            ----          ------        ------
<S>                                         <C>             <C>            <C>           <C>
Revenues:                                                                                
Trust technology services................   $119,378        $123,782       $(4,404)         (4%)
Trust operations outsourcing.............     10,147           4,243         5,904         139%
                                            --------        --------       -------         
     Total revenues......................    129,525         128,025         1,500           1%
                                                                                           
Expenses:                                                                                  
Operating and development................     67,973          62,746         5,227           8%
Sales and marketing......................     24,406          21,970         2,436          11%
                                            --------        --------       -------         
                                                                                           
     Total operating profits.............   $ 37,146        $ 43,309       $(6,163)        (14%)
                                            ========        ========       =======
</TABLE>

The comparison of trust technology services revenues were affected by the
recognition of significant one-time contractual buyout fees in 1996.  An
incremental $4.5 million of one-time buyout fees were recognized in 1996, as
compared to 1997, associated with trust clients that terminated their
relationships.  When a client terminates its contract for processing services,
recurring processing fees are negatively affected in future periods.  As a
result, recurring processing fees in 1997 decreased approximately $4.8 million
associated with these lost clients.  However, an incremental $2.2 million in
one-time implementation fees were recognized in 1997 due to the contracting of
new trust technology clients and the expansion of services to existing bank
clients involved in mergers and acquisitions.  Revenues earned from liquidity
products and bank-related brokerage services increased 17 percent or $2.9
million, but only accounts for approximately 16 percent of total trust
technology services revenues in 1997 and 13 percent in 1996.

Trust operations outsourcing experienced significant growth in 1997 primarily
due to the establishment of new client relationships, including some larger
banks. Revenues earned from processing services were 55 percent in 1997 and 36
percent in 1996, while custody and investment solutions were 45 percent in 1997
and 64 percent in 1996. Assets under custody were $24.8 billion at December 31,
1997 and $16.8 billion at December 31, 1996. The transition between processing
and investment solutions was due to an increase in new clients contracting for
processing services during 1997.

Operating profits and profit margin decreased in 1997.  Profit margin for 1997
was 29 percent, as compared to 34 percent for 1996.  Operating profits in 1996
were boosted by the recognition of a substantial one-time contractual buyout fee
received from a client involved in an acquisition.  Profit margin in 1997 was
affected by a rise in expenses associated with the contracting of new clients
and additional amortization expense of capitalized software development
projects.  As a percentage of sales, operating and development expenses
increased to 52 percent from 49 percent and sales and marketing expenses
increased to 19 percent from 17 percent.

Operating and development expenses increased during 1997 primarily due to
additional operating costs associated with the contracting of new trust
operations outsourcing clients and software development costs.  The contracting
of new trust operations outsourcing clients required additional personnel and
other operating costs to properly service and maintain the relationship.
Significant resources were expended to enhance the trust technology product
line, primarily through the open architecture project, as well as a concentrated
effort to address the Year 2000 issue.  Amortization expense for software
development costs previously capitalized increased in 1997.

Sales and marketing expenses increased primarily due to additional personnel and
promotion costs.  Personnel costs increased as a result of additional sales
compensation associated with the contracting of new trust technology clients in
1997.  The increase in promotion costs resulted from additional sponsored
marketing events during 1997.

                                                                              22
<PAGE>
 
MUTUAL FUND SERVICES
- - --------------------

<TABLE>
<CAPTION>
                                                                          DOLLAR        PERCENT
                                            1997            1996          CHANGE         CHANGE
                                            ----            ----          ------         ------
<S>                                        <C>             <C>            <C>           <C>
Total revenues..........................   $83,157         $62,874        $20,283            32%
                                                                                        
Expenses:                                                                               
Operating and development...............    44,173          36,255          7,918            22%
Sales and marketing.....................    15,126          10,745          4,381            41%
                                           -------         -------        -------       
                                                                                        
     Total operating profits............   $23,858         $15,874        $ 7,984            50%
                                           =======         =======        =======
</TABLE>

Mutual fund services revenues reported another year of strong growth primarily
fueled by the increase in average proprietary fund balances over the past year.
Average proprietary fund balances increased $22.9 billion or 45 percent from
$50.4 billion during 1996 to $73.3 billion during 1997.  Average basis points
earned on proprietary funds decreased primarily due to a new contract
established with one of our largest non-bank proprietary clients in mid-1996
that reduced the amount of revenues earned from that complex.  This decrease in
administrative fees earned was offset by an equal reduction in direct
proprietary fund expenses.  The growth in proprietary fund balances was mainly
fueled by growth in existing proprietary fund complexes.  This growth in
existing complexes was primarily the result of banks becoming more successful at
selling mutual funds and the favorable stock market environment.  Additionally,
proprietary fund balances were affected by regulatory changes in 1996 that
permit the transfer of common trust assets into proprietary mutual funds on a
tax-free basis.

Operating profits and profit margin in 1997 increased primarily due to a
significant increase in proprietary fund balances.  Profit margin was 29 percent
for 1997 and 25 percent in 1996.  As a percentage of sales, operating and
development expenses decreased to 53 percent from 58 percent and sales and
marketing expenses remained relatively flat.  The decrease in operating and
development expenses, as a percentage of sales, was due to administrative costs
remaining relatively flat from year to year.

ASSET MANAGEMENT
- - ----------------

<TABLE>
<CAPTION>
                                                                          DOLLAR        PERCENT
                                              1997           1996         CHANGE         CHANGE
                                              ----           ----         ------         ------
<S>                                          <C>           <C>            <C>           <C>
Revenues:                                                                               
Investment management fees...............    $51,188       $37,543        $13,645            36%
Liquidity management fees................     10,683         8,641          2,042            24%
                                             -------       -------        -------       
     Total revenues......................     61,871        46,184         15,687            34%
                                                                                        
Expenses:                                                                               
Operating and development................     25,488        25,438             50            --
Sales and marketing......................     33,102        23,717          9,385            40%
                                             -------       -------        -------       
                                                                                        
     Total operating profits.............    $ 3,281       $(2,971)       $ 6,252           210%
                                             =======       =======        =======
</TABLE>

Investment management fees increased 36 percent from the prior-year period due
to an increase in average fund balances.  Average assets under management
increased $3.2 billion to $9.6 billion for 1997, as compared to $6.4 billion for
1996, an increase of 50 percent.  This increase in average fund balances was
primarily the result of increased sales of our Family of Funds to high-net-
worth individuals through various registered investment advisors, financial
planners, and other financial intermediaries, as well as an increase in sales of
our asset management programs to institutional investors during 1997.
Additionally, average basis points earned increased slightly during 1997.

The 24 percent increase in liquidity management fees was mainly driven by an
increase in average assets under management in liquidity products.  However,
average basis points earned decreased slightly in 1997 due to clients
transferring funds into lower-fee liquidity products.  Additionally, the
increase in revenues was slightly influenced by growth in our cash sweep
services to smaller banks.

                                                                              23
<PAGE>
 
The increase in operating profits and margin was primarily due to significant
growth in assets under management that generated a substantial increase in
revenues without a corresponding increase in variable costs. Profit margin
increased to 5 percent for 1997, as compared to a negative 6 percent in 1996. As
a percentage of sales, operating and development expenses decreased to 41
percent from 55 percent. This decrease is due to our ability to leverage on our
infrastructure without incurring significant additional operating costs. As a
percentage of sales, sales and marketing expenses increased to 54 percent from
51 percent. This increase is due to additional personnel costs, primarily sales
compensation, and promotion costs for a television advertising campaign.

INVESTMENTS IN NEW BUSINESS
- - ---------------------------

<TABLE>
<CAPTION>
                                                                             DOLLAR         PERCENT
                                              1997          1996             CHANGE         CHANGE
                                              ----          ----             ------         ------
<S>                                         <C>            <C>              <C>             <C>
Total revenues...........................   $14,439        $10,354          $4,085            39%
                                                                                            
Expenses:                                                                                   
Operating and development................     8,102          4,626           3,476            75%
Sales and marketing......................    12,136         12,287            (151)           (1%)
                                            -------        -------          ------          
                                                                                            
     Total operating profits.............   $(5,799)       $(6,559)         $  760            12%
                                            =======        =======          ======
</TABLE>

Revenues increased 39 percent primarily due to an increase in assets under
management. The increase in assets under management primarily stemmed from an
acquisition that was done in late 1996. Additionally, the investment advisory
business in Canada experienced significant increases in assets under management.

We continued our strategy to establish name recognition and distribution
channels in foreign markets.  As a result, significant expenditures were
incurred.


OTHER
- - -----

In 1994, we formed a partnership, LSV, with three leading academics in the field
of finance. Our interest in LSV was 51 percent during 1996 and 1997 and was
consolidated into our operating results. LSV reported $3,757 in total revenues
during 1997, as compared to $380 during 1996. Operating profits from LSV were
$957 in 1997, as compared to operating losses of $331 in 1996.

General and administrative expenses increased 5 percent to $13,931 for the year
ended December 31, 1997 from $13,235 for the year ended December 31, 1996.  The
increase in general and administrative expenses is primarily due to increases in
facilities and corporate overhead expenses.  As a percentage of total
consolidated revenues, general and administrative expenses were 5 percent in
1997 and 1996.

Gain on sale of investments available for sale in 1996 was $1,097.  The realized
gain is the result of the disposition of certain marketable securities
classified as Investments available for sale at an amount greater than original
cost.

Interest income for the year ended December 31, 1997 was $983, as compared to
$808 for the year ended December 31, 1996.  Interest income is earned based upon
the amount of cash that is invested daily and fluctuations in interest income
recognized for one period in relation to another is due to changes in the
average cash balance invested for the period.

Interest expense for the year ended December 31, 1997 was $2,488, as compared to
$48 for the year ended December 31, 1996. Interest expense in 1997 primarily
relates to the issuance of long-term debt in early 1997 (See Note 7 of the Notes
to Consolidated Financial Statements). All interest costs associated with
borrowings under the line of credit in 1996 were capitalized as it related to
the construction of our corporate campus.

                                                                              24
<PAGE>
 
LIQUIDITY AND CAPITAL RESOURCES
- - -------------------------------

<TABLE>
<CAPTION>
                                                                 1998           1997            1996
                                                                 ----           ----            ----
<S>                                                           <C>             <C>             <C>
Net cash provided by operating activities.................    $ 99,869        $ 46,537        $ 30,547
Net cash used in investing activities.....................     (31,702)        (21,854)        (41,930)
Net cash provided by (used in) financing activities.......     (32,078)        (20,959)         14,294
                                                              --------        --------        --------
Net increase in cash and cash equivalents.................      36,089           3,724           2,911
                                                                                              
Cash and cash equivalents, beginning of year..............      16,891          13,167          10,256
                                                              --------        --------        --------
Cash and cash equivalents, end of year....................    $ 52,980        $ 16,891        $ 13,167
                                                              ========        ========        ========
</TABLE>

Cash requirements and liquidity needs are primarily funded through operations
and our capacity for additional borrowing.  We currently have a line of credit
agreement that provides for borrowings of up to $50,000.  The availability of
the line of credit is subject to compliance with certain covenants set forth in
the agreement (See Note 6 of the Notes to Consolidated Financial Statements).
At December 31, 1998, the unused sources of liquidity consisted of cash and cash
equivalents of $52,980 and the unused portion of the line of credit of $50,000.

Cash flow generated from operations in 1998 primarily resulted from an increase
in income, increased receivables collections, and an increase in accrued
compensation and various accrued liabilities. The increase in accrued
compensation and various accrued liabilities resulted from increased business
activity during 1998. Accrued compensation is paid annually in the first quarter
of the following year. Cash flow provided by operations in 1997 was negatively
affected by an increase in receivables. As a result of the contracting of new
trust clients in 1997, a substantial increase in unbilled receivables relating
to implementation fees was experienced. This increase in unbilled receivables
results from timing differences between services provided and contractual
billing schedules.

Cash flows provided by operations were also affected by several other factors.
Receivables from regulated investment companies increased in 1998 and 1997
primarily due to an increase in assets under management.  These balances are
paid off in the following month.  In 1998 and 1997, cash flows from operations
were favorably affected by the sales of loans classified as Loans receivable
available for sale, whereas, cash flows from operations in 1996 were negatively
affected by the purchase of these loans.

Cash flows from investing activities are principally affected by capital
expenditures, including capitalized software development costs. Capital
expenditures included significant costs associated with the construction and
subsequent expansion of our corporate campus. Construction of the corporate
campus began in late 1994 and was completed in late 1996. Construction of an
additional building within the corporate campus began in early 1998 and was
completed in early 1999. As of February 28, 1999, $5,751 has been spent on the
new building and we expect the total cost to be approximately $6,300.
Capitalized software development costs in 1998, 1997, and 1996 primarily result
from continued investments in the TRUST 3000 product line, especially the open
architecture project and a concentrated effort to address Year 2000 compliance
issues. In 1996, $5,536 in net proceeds were received from the sale of
marketable securities classified as Investments available for sale.

Cash flows from financing activities are primarily affected by debt and equity
transactions. On February 24, 1997, we issued $35,000 of medium-term notes in a
private offering with certain financial institutions. The proceeds were used to
repay the outstanding balance on our line of credit at that date, which amounted
to $30,000. Principal payments are made annually from the date of issuance while
interest payments are made semi-annually (See Note 7 of the Notes to
Consolidated Financial Statements). we continued our common stock repurchase
program. Approximately 867,000 shares of our common stock were acquired at a
cost of $55,156 during 1998 pursuant to an open market stock purchase
authorization of $298,365 made by the Board of Directors. As of February 28,
1999, SEI still had $28,056 remaining authorized for the purchase of our common
stock. Proceeds received from the issuance of common stock, including tax
benefit, rose substantially in 1998 primarily due to increased stock option
activity and the rapid increase in our common stock share price.

Our operating cash flow, borrowing capacity, and liquidity should provide
adequate funds for continuing operations, continued investment in new products
and equipment, our common stock repurchase program, future dividend payments,
and principal and interest payments on our long-term debt.

                                                                              25
<PAGE>
 
DISCONTINUED OPERATIONS
- - -----------------------

In May 1995, the Board of Directors approved a plan of disposal for the SEI
Capital Resources Division ("CR") and the SEI Defined Contribution Retirement
Services Division ("DC"). CR provided investment performance evaluation
services, consulting services, and brokerage services to employee benefit plan
sponsors and investment advisors in the United States. CR was sold to a private
investment firm on December 31, 1997. DC provided administrative and processing
services, recordkeeping services, and employee retirement planning materials for
use by defined contribution plans. The transfer of DC's operations to the
acquiring firm was completed in 1996.

Discontinued operations for the year ended December 31, 1997 had revenues of
$25,675 and pre-tax losses of $3,294, as compared to revenues of $32,940 and
pre-tax losses of $6,170 for the year ended December 31, 1996.  The 1997 losses
were charged against the provision established for the disposal of discontinued
operations and is reflected in Accrued discontinued operations disposal costs on
the accompanying Consolidated Balance Sheets (See Note 2 of the Notes to
Consolidated Financial Statements).

A provision for the disposal of CR and DC was established in the fourth quarter
of 1996 that included certain estimates relating to future commitments on
certain operating leases utilized by CR.  These estimates were based upon
certain assumptions relating to the sub-leasing of these facilities.  In 1998,
these sub-lease arrangements were finalized.  As a result, the original
discontinued operations provision was overstated and accordingly was reduced by
$1,154,000, net of tax expense of $444,000, and is reflected in Income from
disposal of discontinued operations on the Consolidated Statements of
Operations.

ASSESSMENT OF RISKS ASSOCIATED WITH THE YEAR 2000
- - -------------------------------------------------

BACKGROUND

We began work on the Year 2000 issue in 1995 with management recognition that
failure to acknowledge, analyze and remediate potential Year 2000 processing
issues could result in material consequences to our financial position and
operating results.  Through early 1997, we focused our efforts on an assessment
of our TRUST 3000 product line and by mid-1997, we expanded our efforts to
include a review of all proprietary systems, vendors, internally used
systems, and any other item that may be affected by the Year 2000.  A corporate
Year 2000 committee was formed consisting of representatives from every area of
our business and is managed by a full time senior project manager.  This
committee reports regularly to the Board of Directors on the progress and status
of our Year 2000 efforts.  The Year 2000 program encompasses all system hardware
and software, physical facilities, utilities, electronic equipment and
communications, as well as all other ancillary purchased products and services.
Our Year 2000 program fully subscribes to the Federal Financial Institutions
Examination Council ("FFIEC") guidelines.

STATE OF READINESS

In accordance with FFIEC guidelines, Year 2000 remediation and time dimensional
testing for all proprietary applications, including TRUST 3000, was completed.
The final release of TRUST 3000 Year 2000 remediated code was released into
production in late 1998. All TRUST 3000 clients have been provided with the
opportunity to review the actual Year 2000 test scripts and test results and/or
conduct their own time dimensional testing.

With the completion of remediation and testing of all proprietary systems, we
proceeded with vendor testing.  A corporate intranet database was established to
track and evaluate the compliance status of all vendors and their products.
Each vendor product within this database has been assigned to a specific
coordinator who is responsible for communications and certification of vendor
products.  The vendor products have been evaluated using the following criterion
to establish the vendor relationship:

  Business Risk - Products importance to mission-critical functionality
  Failure Risk - Likelihood of vendor achieving or not achieving Year 2000
  compliance on time
  Compliance Code - Based on communications from vendor and/or test results.

As of early 1999, approximately 42 percent of vendor products had been certified
as Year 2000 compliant within FFIEC guidelines.  The remaining 58 percent are on
target to be fully compliant by mid-1999.

                                                                              26
<PAGE>
 
All systems in use for internal business purposes, including, but not limited
to, network, accounting, communications and power supply, have been tested or
are in the process of being modified for Year 2000 compliance.  Internal use
systems requiring modifications will be mitigated through enhancements to
existing software and hardware or conversions to new software and hardware.

COSTS TO ADDRESS YEAR 2000 ISSUES

The cost of Year 2000 remediation and testing of the TRUST 3000 product line is
projected to be $10 million.  Through December 31, 1998, approximately $6.3
million has been spent, of which approximately $4.5 million has been capitalized
pursuant to Statement of Financial Accounting Standards No. 86, "Accounting for
the Costs of Computer Software to Be Sold, Leased, or Otherwise Marketed" (See
Note 1 of the Notes to Consolidated Financial Statements).  Additional spending
of $1.7 million is projected for 1999 and approximately $2.0 million is
estimated for contingency plans in the Year 2000.  The spending dedicated to the
TRUST 3000 product line represents the material costs incurred to achieve Year
2000 compliance.  All Year 2000 compliance costs for all other proprietary
systems, including those used for internal business purposes, were expensed as
incurred or capitalized if new software or hardware was purchased.  These costs
were immaterial.  Any future costs incurred associated with ancillary systems or
equipment is not expected to be material.  No planned development projects were
delayed or cancelled as a result of Year 2000 compliance efforts.

RISKS OF THE YEAR 2000 ISSUES

Every effort has been made to mitigate any potential risk resulting from the
roll over to the Year 2000.  However, we believe that despite all of our best
efforts, there still exists the potential of experiencing minor to moderate
system issues at the beginning of the Year 2000.  In anticipation of these
risks, we are planning the following actions:

       1.) Work closely with all clients to instruct them on maintaining all
           1999 year-end data for recovery purposes.
       2.) Current Year 2000 project expertise will remain dedicated to the Year
           2000 program to be available to resolve potential issues.
       3.) Budget funds into the Year 2000 to support potential issues.
       4.) All future product releases will be analyzed for potential date
           related changes. If such a change is identified as having an impact
           to our Year 2000 certification, tests will be performed to re-certify
           the modified code.
       5.) To reconfirm the TRUST 3000 product line as Year 2000 compliant, a
           full re-certification of compliance will be conducted in the third
           quarter of 1999.

As part of our Corporate Year 2000 due diligence, all of our insurance programs
were reviewed with regard to the Year 2000.  There are no specific Year 2000
exclusions in any of our policies.  In addition, we have reviewed and will
continue to review the status of our Year 2000 program efforts with our
insurance carriers.

CONTINGENCY PLANS

Contingency planning efforts have been focused on the most critical business
functions and vary significantly based on a system's functionality and how it
operates. Manual overrides exist for many functions and in some cases
alternative suppliers or delivery channels have been identified. The contingency
strategy for our own proprietary products focuses on additional planned
resources to react in the Year 2000. A plan exists to identify, correct and
release Year 2000 related core and custom problems in the quickest fashion
possible. A rapid response team will be available during peak processing times
that will execute this plan. Clients will be apprised of the plan and advised on
appropriate data retention. In the event electrical suppliers are not Year 2000
compliant and an interruption in electrical services occurs, each facility has a
backup generator that will supply necessary electrical service to core
processing systems and databases.

                                                                              27
<PAGE>
 
FORWARD-LOOKING INFORMATION
- - ---------------------------

The Private Securities Litigation Reform Act of 1995 provides a "safe harbor"
for forward-looking statements. Certain information contained in this discussion
is or may be considered forward-looking. Forward-looking statements relate to
future operations, strategies, financial results or other developments, and
contain words or phrases such as "may," "expects," "anticipates," or similar
expressions. Forward-looking statements are based upon estimates and assumptions
that involve certain risks and uncertainties, including but not limited to,
economic, competitive, governmental and technological, many of which are beyond
our control or are subject to change. Although we believe the assumptions
underlying the forward-looking statements contained herein are reasonable, any
of the assumptions could be inaccurate. Therefore, we caution the reader that
revenues and income could differ materially from those expected to occur. We
disclaim any obligation to publicly update or revise any forward-looking
statements, whether as a result of new information, future developments or
otherwise.

                                                                              28
<PAGE>
 
Item 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.
          ---------------------------------------------------------- 

We do have several offices located outside the United States that conduct
business in the local currencies of that country.  We do not use foreign
currency exchange contracts or other types of derivative financial investments
to hedge local currency cash flows.  All foreign operations only account for
approximately 4 percent of total revenues.  Due to this limited activity, we do
not expect any material loss with respect to foreign currency risk.

Exposure to market risk for changes in interest rates relate primarily to our
investment portfolio and long-term debt.  Currently, we do not invest in
derivative financial instruments.  SEI does not undertake any specific actions
to cover its exposure to interest rate risk and is not a party to any interest
rate risk management transactions.  We place our investments in financial
instruments that meet high credit quality standards.  We are adverse to
principal loss and ensure the safety and preservation of our invested funds by
limiting default risk, market risk, and reinvestment risk.  The interest rate on
our long-term debt is fixed and is not traded on any established market.  We
have no cash flow exposure due to rate changes for our long-term debt.

                                                                              29
<PAGE>
 
ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.
         ------------------------------------------- 


Index to Financial Statements:

     Report of Independent Public Accountants
     Consolidated Balance Sheets -- December 31, 1998 and 1997
     Consolidated Statements of Operations -- For the years ended
       December 31, 1998, 1997, and 1996
     Consolidated Statements of Shareholders' Equity -- For the years ended
       December 31, 1998, 1997, and 1996
     Consolidated Statements of Cash Flows -- For the years ended
       December 31, 1998, 1997, and 1996
     Notes to Consolidated Financial Statements
     Schedule II -- Valuation and Qualifying Accounts
 
All other schedules are omitted because they are not applicable, or not
required, or because the required information is included in the Consolidated
Financial Statements or notes thereto.

                                                                              30
<PAGE>
 
                   REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS


To SEI Investments Company:


We have audited the accompanying consolidated balance sheets of SEI Investments
Company (a Pennsylvania corporation) and subsidiaries as of December 31, 1998
and 1997, and the related consolidated statements of operations, shareholders'
equity and cash flows for each of the three years in the period ended December
31, 1998. These financial statements and schedule are the responsibility of the
Company's management. Our responsibility is to express an opinion on these
financial statements and schedule based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements and schedule are
free of material misstatement. An audit includes examining, on a test basis,
evidence supporting the amounts and disclosures in the financial statements. An
audit also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of SEI Investments Company and
subsidiaries as of December 31, 1998 and 1997, and the results of their
operations and their cash flows for each of the three years in the period ended
December 31, 1998 in conformity with generally accepted accounting principles.

Our audits were made for the purpose of forming an opinion on the basic
financial statements taken as a whole.  The schedule listed in the Index to
Financial Statements is presented for purposes of complying with the Securities
and Exchange Commission's rules and is not part of the basic financial
statements.  This schedule has been subjected to the auditing procedures applied
in the audits of the basic financial statements and, in our opinion, fairly
states in all material respects the financial data required to be set forth
therein in relation to the basic financial statements taken as a whole.


                                              ARTHUR ANDERSEN LLP

Philadelphia, Pa.
 February 5, 1999

                                                                              31
<PAGE>
 
<TABLE>
<CAPTION>
                CONSOLIDATED BALANCE SHEETS                          SEI Investments Company
                (In thousands)                                              and Subsidiaries
                
                DECEMBER 31,                                            1998          1997
                ============================================================================
<S>             <C>                                                  <C>            <C>   
ASSETS          CURRENT ASSETS:
                Cash and cash equivalents.........................   $ 52,980       $ 16,891
                Receivables from regulated investment                               
                   companies......................................     18,999         14,452
                Receivables, net of allowance for doubtful                          
                   accounts of $1,200.............................     27,919         31,192
                Loans receivable available for sale...............      2,167         11,340
                Deferred income taxes.............................      7,598          6,337
                Prepaid expenses..................................      3,846          3,783
                                                                     --------       --------
                                                                                    
                     TOTAL CURRENT ASSETS.........................    113,509         83,995
                                                                     --------       --------
                                                                                    
                PROPERTY AND EQUIPMENT, net of accumulated                          
                   depreciation and amortization of $57,452                            
                   and $49,493....................................     62,761         52,131
                                                                     --------       --------
                                                                                    
                CAPITALIZED SOFTWARE, net of accumulated                            
                   amortization of $8,238 and $7,959..............     17,068         18,440
                                                                     --------       --------
                                                                                    
                OTHER ASSETS, net.................................     15,434         14,318
                                                                     --------       --------
                                                                                    
                                                                     $208,772       $168,884
                ============================================================================
</TABLE> 

                The accompanying notes are an integral part of these statements.

                                                                              32
<PAGE>
 
<TABLE>
<CAPTION>
                CONSOLIDATED BALANCE SHEETS                                        SEI Investments Company
                (In thousands, except par value)                                          and Subsidiaries
                
                DECEMBER 31,                                                      1998              1997
                ==========================================================================================
<S>             <C>                                                             <C>               <C> 
LIABILITIES     CURRENT LIABILITIES:
AND             
SHAREHOLDERS'   Current portion of long-term debt...........................    $  2,000          $  2,000
EQUITY          Accounts payable............................................       6,805             5,798
                Accrued compensation........................................      32,105            20,920
                Accrued proprietary fund services...........................      10,370             9,812
                Accrued consulting services.................................       6,934             3,260
                Accrued discontinued operations disposal costs..............       3,860             7,228
                Other accrued liabilities...................................      35,209            25,500
                Deferred revenue............................................      13,511             7,158
                                                                                --------          --------
                                                                                                  
                TOTAL CURRENT LIABILITIES...................................     110,794            81,676
                                                                                --------          --------
                                                                                                  
                LONG-TERM DEBT..............................................      31,000            33,000
                                                                                --------          --------
                                                                                                  
                DEFERRED INCOME TAXES.......................................       7,293             7,798
                                                                                --------          --------
                                                                                                  
                COMMITMENTS AND CONTINGENCIES                                                     
                                                                                                  
                SHAREHOLDERS' EQUITY:                                                             
                Series Preferred stock, $.05 par value,                                           
                60 shares authorized; no shares issued                                            
                and outstanding.............................................          --                --
                Common stock, $.01 par value,                                                     
                100,000 shares authorized; 17,861 and                                             
                17,767 shares issued and outstanding........................         179               178
                Capital in excess of par value..............................      57,541            46,724
                Retained earnings...........................................       2,422                --
                Accumulated other comprehensive losses......................        (457)             (492)
                                                                                --------          --------
                                                                                                  
                 TOTAL SHAREHOLDERS' EQUITY..................................     59,685            46,410
                                                                                --------          --------
                                                                                                     
                                                                                $208,772          $168,884
                ============================================================================================= 
 </TABLE>
                The accompanying notes are an integral part of these statements.

                                                                              33
<PAGE>
 
<TABLE>
<CAPTION>
CONSOLIDATED STATEMENTS OF OPERATIONS                                            SEI Investments Company
(In thousands, except per share data)                                               And Subsidiaries

YEAR ENDED DECEMBER 31,                                                     1998            1997            1996
=================================================================================================================== 
<S>                                                                       <C>             <C>              <C>
REVENUES..............................................................    $366,119        $292,749         $247,817
EXPENSES:                                                                                                  
    Operating and development.........................................     180,937         148,536          129,776
    Sales and marketing...............................................     103,834          84,770           68,719
    General and administrative........................................      13,463          13,931           13,235
                                                                          --------        --------         --------
                                                                                                           
INCOME FROM OPERATIONS................................................      67,885          45,512           36,087
                                                                                                           
GAIN ON SALE OF INVESTMENTS AVAILABLE FOR SALE........................          --              --            1,097
EQUITY IN THE EARNINGS OF UNCONSOLIDATED AFFILIATE....................       3,015              --               --
INTEREST INCOME.......................................................       1,558             983              808
INTEREST EXPENSE......................................................      (2,575)         (2,488)             (48)
                                                                          --------        --------         --------
                                                                                                           
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES.................      69,883          44,007           37,944
                                                                                                           
INCOME TAXES..........................................................      26,904          17,163           14,798
                                                                          --------        --------         -------- 

INCOME FROM CONTINUING OPERATIONS.....................................      42,979          26,844           23,146
                                                                                                           
INCOME (LOSS) FROM DISPOSAL OF DISCONTINUED OPERATIONS,                                                    
   NET OF INCOME TAX EXPENSE (BENEFIT) OF $444 AND $(5,139)...........         710              --          (16,335)
                                                                          --------        --------         -------- 
                                                                                                           
NET INCOME............................................................    $ 43,689        $ 26,844         $  6,811

=================================================================================================================== 
 
BASIC EARNINGS PER COMMON SHARE:
    Earnings per common share from continuing operations..............    $   2.41        $   1.47         $   1.25
    Earnings (loss) per common share                                                                       
      from discontinued operations....................................         .04              --             (.88)
                                                                          --------        --------         --------
                                                                                                           
BASIC EARNINGS PER COMMON SHARE.......................................    $   2.45        $   1.47         $    .37

=================================================================================================================== 
 
DILUTED EARNINGS PER COMMON SHARE:
    Earnings per common share from continuing operations..............    $   2.25        $   1.40         $   1.20
    Earnings (loss) per common share                                                                       
      from discontinued operations....................................         .04              --             (.85)
                                                                          --------        --------         --------
                                                                                                           
DILUTED EARNINGS PER COMMON SHARE.....................................    $   2.28        $   1.40         $    .35

=================================================================================================================== 
</TABLE>

The accompanying notes are an integral part of these statements.

                                                                              34
<PAGE>
 
<TABLE> 
<CAPTION> 
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY                                                            SEI Investments Company
(In thousands)                                                                                                    and Subsidiaries

                                                                                               ACCUMULATED OTHER
                                                                                              COMPREHENSIVE INCOME
                                                                                            ------------------------
                                                                                            CUMULATIVE    UNREALIZED
                                                                                             FOREIGN       HOLDING
                                                                    CAPITAL                  CURRENCY    GAIN (LOSS)       TOTAL
                                                 COMMON STOCK    IN EXCESS OF   RETAINED   TRANSLATION        ON       SHAREHOLDERS'

                                               ---------------
                                               SHARES   AMOUNT     PAR VALUE    EARNINGS   ADJUSTMENTS   INVESTMENTS       EQUITY
===================================================================================================================================
<S>                                            <C>      <C>      <C>            <C>        <C>           <C>           <C>
BALANCE, DECEMBER 31, 1995...................  18,425     $184        $48,207    $ 7,167         $ (58)        $ 502      $56,002
Comprehensive income:
   Net income................................      --       --             --      6,811            --            --        6,811
   Foreign currency translation
     adjustments.............................      --       --             --         --          (119)           --         (119)
   Realized loss on investments,
     net of reclassification adjustment......      --       --             --         --            --          (502)        (502)
                                                                                                                          -------
Total comprehensive income...................                                                                               6,190
Purchase and retirement of common
     stock...................................    (533)      (5)        (1,396)    (8,369)           --            --       (9,770)
Issuance of common stock under the
     employee stock purchase plan............      52       --            976         --            --            --          976
Issuance of common stock upon
     exercise of stock options...............     554        6          4,434         --            --            --        4,440
Tax benefit on stock options exercised.......      --       --          2,738         --            --            --        2,738
Cash dividends...............................      --       --             --     (4,468)           --            --       (4,468)
===================================================================================================================================
BALANCE, DECEMBER 31, 1996...................  18,498       185        54,959      1,141          (177)           --       56,108
Comprehensive income:
   Net income................................      --       --             --     26,844            --            --       26,844
   Foreign currency translation
     adjustments.............................      --       --             --         --          (240)           --         (240)
   Unrealized loss on investments............      --       --             --         --            --           (75)         (75)
                                                                                                                         --------
Total comprehensive income...................                                                                              26,529
Purchase and retirement of common
     stock...................................  (1,403)     (14)       (20,666)   (22,940)           --            --      (43,620)
Issuance of common stock under the
     employee stock purchase plan............      47        1          1,053         --            --            --        1,054
Issuance of common stock upon
     exercise of stock options...............     625        6          8,009         --            --            --        8,015
Tax benefit on stock options
     exercised...............................      --       --          3,369         --            --            --        3,369
Cash dividends...............................      --       --             --     (5,045)           --            --       (5,045)
===================================================================================================================================
BALANCE, DECEMBER 31, 1997...................  17,767     $178       $ 46,724    $    --         $(417)         $(75)     $46,410
===================================================================================================================================
</TABLE>
 
The accompanying notes are an integral part of these statements.

                                                                              35
<PAGE>
 
<TABLE>
<CAPTION>
CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY                                                          SEI Investments Company
(In thousands)                                                                                                  and Subsidiaries

                                                                                           ACCUMULATED OTHER
                                                                                          COMPREHENSIVE INCOME
                                                                                        ------------------------
                                                                                        CUMULATIVE    UNREALIZED
                                                                                         FOREIGN       HOLDING
                                                              CAPITAL                    CURRENCY    GAIN (LOSS)       TOTAL
                                          COMMON STOCK      IN EXCESS OF   RETAINED    TRANSLATION        ON       SHAREHOLDERS'
                                         --------------
                                        SHARES     AMOUNT    PAR VALUE     EARNINGS    ADJUSTMENTS   INVESTMENTS       EQUITY
================================================================================================================================
<S>                                     <C>        <C>      <C>           <C>          <C>           <C>           <C>
BALANCE, DECEMBER 31, 1997............   17,767      $178      $ 46,724   $       --         $(417)         $(75)       $ 46,410
Comprehensive income:
   Net income.........................       --        --            --       43,689            --            --          43,689
   Foreign currency translation
     adjustments......................       --        --            --           --             9            --               9
   Unrealized gain on investments.....       --        --            --           --            --            26              26
                                                                                                                        --------
Total comprehensive income............                                                                                    43,724
Purchase and retirement of common
     stock............................     (898)       (9)      (21,998)     (35,566)           --            --         (57,573)
Issuance of common stock under the
     employee stock purchase plan.....       28        --         1,524           --            --            --           1,524
Issuance of common stock upon
     exercise of stock options........      964        10        11,262           --            --            --          11,272
Tax benefit on stock options
     exercised........................       --        --        20,029           --            --            --          20,029 
Cash dividends........................       --        --            --       (5,701)           --            --          (5,701)
================================================================================================================================
BALANCE, DECEMBER 31, 1998............   17,861      $179      $ 57,541   $    2,422         $(408)         $(49)       $ 59,685
================================================================================================================================
</TABLE>

The accompanying notes are an integral part of these statements.

                                                                              36
<PAGE>
 
<TABLE>
<CAPTION>
CONSOLIDATED STATEMENTS OF CASH FLOWS                                                        SEI Investments Company
(In thousands)                                                                                      and Subsidiaries


YEAR ENDED DECEMBER 31,                                                          1998          1997           1996
====================================================================================================================
<S>                                                                             <C>           <C>            <C>  
CASH FLOWS FROM OPERATING ACTIVITIES:                                                         
                                                                                              
Net income..................................................................    $43,689       $ 26,844       $ 6,811
                                                                                                             
Adjustments to reconcile net income to net cash                                                              
    provided by operating activities:                                                                        
                                                                                                             
          Depreciation and amortization.....................................     15,688         14,068        10,039
          Provision for losses on receivables...............................         --             --           144
          Equity in the earnings of unconsolidated affiliate................     (3,015)            --            --
          Write-off of capitalized software.................................      4,832             --            --
          Write-off of customer lists.......................................      2,662             --            --
          Deferred income tax expense (benefit).............................     (3,608)           893         3,821
          Discontinued operations...........................................       (710)            --         6,046
          Gain on sale of investments available for sale....................         --             --        (1,097)
          Other.............................................................      3,450         (1,214)       (3,739)
          Change in current assets and liabilities:                                                          
              Decrease (increase) in:                                                                        
                  Receivables from regulated investment companies...........     (4,547)        (3,616)       (2,079)
                  Receivables...............................................      2,121        (11,634)        2,734
                  Loans receivable available for sale.......................      9,173          1,703        (7,891)
                  Prepaid expenses..........................................        (63)            42         1,065
              Increase (decrease) in:                                                                        
                  Accounts payable..........................................      1,007            (65)         (389)
                  Accrued compensation......................................     11,208          6,417           779
                  Accrued discontinued operations disposal costs............     (2,658)          (189)        7,417
                  Accrued proprietary fund services.........................        558          3,064         4,065
                  Accrued consulting services...............................      3,674           (836)        1,206
                  Other accrued liabilities.................................     10,055          9,025         2,287
                  Deferred revenue..........................................      6,353          2,035          (672)
                                                                                -------       --------       -------
                                                                                                             
              Total adjustments.............................................     56,180         19,693        23,736
                                                                                -------       --------       -------
                                                                                                             
           NET CASH PROVIDED BY OPERATING ACTIVITIES........................    $99,869       $ 46,537       $30,547

====================================================================================================================
</TABLE>

The accompanying notes are an integral part of these statements.

                                                                              37
<PAGE>
 
<TABLE>
<CAPTION>
Consolidated Statements of Cash Flows                                                             SEI Investments Company
(In thousands)                                                                                           and Subsidiaries


Year Ended December 31,                                                         1998             1997             1996
========================================================================================================================
<S>                                                                            <C>              <C>             <C>   
CASH FLOWS FROM INVESTING ACTIVITIES:                                                                           
                                                                                                                
     Additions to property and equipment....................................    (21,774)         (12,955)        (33,060)
     Additions to capitalized software......................................     (6,719)          (8,096)        (10,668)
     Proceeds from sale (purchase) of investments available for sale........     (2,626)              --           5,536
     Other..................................................................       (583)            (803)         (3,738)
                                                                               --------         --------        --------
                                                                                                                
          NET CASH USED IN INVESTING ACTIVITIES.............................    (31,702)         (21,854)        (41,930)
                                                                                                                
CASH FLOWS FROM FINANCING ACTIVITIES:                                                                           
                                                                                                                
     Proceeds from (payment on) long-term debt..............................     (2,000)          35,000              --
     Proceeds from (payment on) line of credit..............................         --          (20,000)         20,000
     Purchase and retirement of common stock................................    (55,156)         (43,620)         (9,770)
     Proceeds from issuance of common stock.................................     10,379            9,069           5,416
     Tax benefit on stock options exercised.................................     20,029            3,369           2,738
     Payment of dividends...................................................     (5,330)          (4,777)         (4,090)
                                                                                                                
          NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES...............    (32,078)         (20,959)         14,294
                                                                               --------         --------        --------
                                                                                                                
NET INCREASE IN CASH AND CASH EQUIVALENTS...................................     36,089            3,724           2,911
                                                                                                                
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR................................     16,891           13,167          10,256
                                                                               --------         --------        --------
                                                                                                                
CASH AND CASH EQUIVALENTS, END OF YEAR......................................   $ 52,980         $ 16,891        $ 13,167

========================================================================================================================
</TABLE>

The accompanying notes are an integral part of these statements.

                                                                              38
<PAGE>
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS               SEI Investments Company
                                                                and Subsidiaries

NOTE 1 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

         NATURE OF OPERATIONS - SEI Investments Company (the "Company") is
         organized around its four primary business lines: Technology Services,
         Mutual Fund Services, Asset Management, and Investments in New
         Business. The Technology Services segment, which accounted for 45
         percent of consolidated revenues in 1998, includes the Trust 3000
         product line and trust operations outsourcing. The Mutual Fund Services
         segment, which accounted for 27 percent of consolidated revenues in
         1998, provides administration and distribution services to proprietary
         mutual funds created for banks, insurance firms, and investment
         management companies. The Asset Management segment, which accounted for
         25 percent of consolidated revenues in 1998, provides investment
         solutions through various investment products and services distributed
         directly or through professional investment advisors, financial
         planners, and other financial intermediaries to institutional and high-
         net-worth markets. Investments in New Business, which accounted for 3
         percent of consolidated revenues in 1998, consists of the Company's
         Canadian and international operations which provide investment advisory
         services globally through investment products and services and
         performance evaluation and consulting services to Canadian pension
         plans.

         PRINCIPLES OF CONSOLIDATION - The Consolidated Financial Statements
         include the accounts of the Company and its wholly owned subsidiaries.
         The Company's principal subsidiaries are SEI Investments Distribution
         Company ("SIDCO"), SEI Investments Management Corporation ("SIMC"), and
         SEI Trust Company. All intercompany accounts and transactions have been
         eliminated. Investment in unconsolidated affiliate is accounted for
         using the equity method due to the Company's less than 50 percent
         ownership. The Company's portion of the affiliate's operating results
         is reflected in Equity in the earnings of unconsolidated affiliate on
         the accompanying Consolidated Statements of Operations (See Note 5).

         CASH AND CASH EQUIVALENTS - At December 31, 1998 and 1997, Cash and
         cash equivalents included $50,283,000 and $10,436,000, respectively,
         primarily invested in SEI Tax Exempt Trust, one of several mutual funds
         sponsored by SIMC. Interest and dividend income for 1998, 1997, and
         1996 was $1,558,000, $983,000, and $808,000, respectively (See Note
         13).

         PROPERTY AND EQUIPMENT - Property and Equipment on the accompanying
         Consolidated Balance Sheets consist of the following:

<TABLE>
<CAPTION>
                                                                                                             ESTIMATED   
                                                                                                            USEFUL LIVES 
                                                                        1998                1997              (IN YEARS) 
         --------------------------------------------------------------------------------------------------------------- 
         <S>                                                         <C>                 <C>               <C>           
         Equipment...............................................    $ 53,739,000        $ 42,376,000          3 to 5    
         Buildings...............................................      28,303,000          27,940,000        25 to 39    
         Land....................................................       6,993,000           6,993,000             N/A    
         Purchased software......................................      10,270,000           9,181,000               3    
         Furniture and fixtures..................................      10,284,000           9,790,000          3 to 5    
         Leasehold improvements..................................       6,791,000           5,344,000      Lease Term    
         Construction in progress................................       3,833,000                  --             N/A    
                                                                     ------------        ------------                    
                                                                                                                         
                                                                      120,213,000         101,624,000                    
         Less:  Accumulated depreciation                                                                                 
           and amortization......................................     (57,452,000)        (49,493,000)                   
                                                                     ------------        ------------
         Property and Equipment, net.............................    $ 62,761,000        $ 52,131,000                    
                                                                                                                         
         --------------------------------------------------------------------------------------------------------------- 
</TABLE>

                                                                              39
<PAGE>
 
         Property and Equipment are stated at cost, which includes interest on
         funds borrowed to finance the construction of the Company's corporate
         campus. Depreciation and amortization are computed using the straight-
         line method over the estimated useful life of each asset. Expenditures
         for renewals and betterments are capitalized, while maintenance and
         repairs are charged to expense when incurred.

         CAPITALIZED SOFTWARE - The Company accounts for software development
         costs in accordance with Statement of Financial Accounting Standards
         No. 86, "Accounting for the Costs of Computer Software to Be Sold,
         Leased, or Otherwise Marketed" ("SFAS 86"). Under SFAS 86, costs
         incurred to create a computer software product are charged to research
         and development expense as incurred until technological feasibility has
         been established. The Company establishes technological feasibility
         upon completion of a detailed program design. At that point, computer
         software costs are capitalized until the product is available for
         general release to customers. The establishment of technological
         feasibility and the ongoing assessment of recoverability of capitalized
         software development costs require considerable judgment by management
         with respect to certain external factors, including, but not limited
         to, anticipated future revenues, estimated economic life, and changes
         in technology.

         Amortization begins when the product is released. Capitalized software
         development costs are amortized on a product-by-product basis using the
         straight-line method over the estimated economic life of the product or
         enhancement, which is primarily three to ten years, with a weighted
         average remaining life of 9.0 years.

         Capitalized software development costs consist primarily of salary,
         consulting, and computer costs incurred to develop new products and
         enhancements to existing products. During 1998, 1997, and 1996,
         software development costs of $6,719,000, $8,096,000, and $10,668,000
         were capitalized, respectively. Amortization expense was $3,259,000,
         $3,233,000, and $1,447,000 in 1998, 1997, and 1996, respectively, and
         is included in Operating and development expense on the accompanying
         Consolidated Statements of Operations.

         Total research and development costs, including capitalized software,
         were $24,866,000, $22,500,000, and $26,254,000 in 1998, 1997, and 1996,
         respectively.

         Management continually evaluates the recoverability of existing
         software products, as well as strategies for new software products. The
         assessment as to the recoverability of existing software products
         included an evaluation of expected future revenues, acceptability of
         the product in the market, the ability to support the product in a 
         cost-effective manner, and technological enhancements. In the fourth
         quarter of 1998, management determined that certain software products
         were considered either obsolete or incapable of producing the
         anticipated results that the product was designed to produce. As a
         result, the Company wrote-off net capitalized software development
         costs of $4,832,000.

         STATEMENTS OF CASH FLOWS - For purposes of the Consolidated Statements
         of Cash Flows, the Company considers investment instruments purchased
         with an original maturity of three months or less to be cash
         equivalents.

         Supplemental disclosures of cash paid/received during the year is as
         follows:

<TABLE>
<CAPTION>
                                                                            1998               1997               1996    
                                                                            ----               ----               ----     
             <S>                                                         <C>                 <C>               <C>        
             Interest paid............................................   $ 2,598,000         $1,499,000        $  794,000 
             Interest and dividends received..........................   $ 1,467,000         $  957,000        $  876,000 
             Income taxes paid (Federal and state)....................   $12,514,000         $8,667,000        $5,525,000  
</TABLE>

         REVENUE RECOGNITION - Principal sources of revenues are information
         processing and software services, management, administration, and
         distribution of mutual funds, brokerage and consulting services, and
         other asset management products and services. Revenues from these
         services are recognized in the periods in which the services are
         performed. Cash received by the Company in advance of the performance
         of services is deferred and recognized as revenue when earned. 

                                                                              40
<PAGE>
 
         INCOME TAXES - The Company accounts for income taxes in accordance with
         Statement of Financial Accounting Standards No. 109, "Accounting for
         Income Taxes" ("SFAS 109"). Under SFAS 109, the liability method is
         used for income taxes. Under this method, deferred tax assets and
         liabilities are determined based on differences between the financial
         reporting and tax basis of assets and liabilities and are measured
         using enacted tax rates and laws that are expected to be in effect when
         the differences reverse (See Note 11).

         FOREIGN CURRENCY TRANSLATION - The assets and liabilities of foreign
         operations are translated into U.S. dollars using the rates of exchange
         at year end. The results of operations are translated into U.S. dollars
         at the average daily exchange rates for the period. All foreign
         currency transaction gains and losses are included in income in the
         periods in which they occur, and are immaterial for each of the three
         years in the period ended December 31, 1998.

         EARNINGS PER SHARE - In February 1997, the Financial Accounting
         Standards Board issued Statement of Financial Accounting Standards No.
         128, "Earnings per Share" ("SFAS 128"), which supersedes Accounting
         Principles Board Opinion No. 15. Pursuant to SFAS 128, dual
         presentation of basic and diluted earnings per common share is required
         on the face of the statements of operations for companies with complex
         capital structures. Basic earnings per common share is calculated by
         dividing net income available to common shareholders by the weighted
         average number of common shares outstanding for the period. Diluted
         earnings per common share reflects the potential dilution from the
         exercise or conversion of securities into common stock, such as stock
         options.

<TABLE>
<CAPTION>
         --------------------------------------------------------------------------------------------------------------------
                                                                                 FOR THE YEAR ENDED DECEMBER 31, 1998        
                                                                          ---------------------------------------------------
                                                                            INCOME                SHARES            PER SHARE
                                                                          (NUMERATOR)         (Denominator)          Amount  
                                                                          -----------         -------------          ------  
         <S>                                                              <C>                 <C>                   <C>      
         Basic earnings per common share                                                                                     
              from continuing operations...............................   $42,979,000            17,827,000            $2.41 
                                                                                                                             
         Dilutive effect of stock options..............................            --             1,299,000                  
                                                                          -----------            ----------                  
         Diluted earnings per common share                                                                                   
              from continuing operations...............................   $42,979,000            19,126,000            $2.25 
                                                                                                                             
         <CAPTION>                                                                                                           
                                                                                  FOR THE YEAR ENDED DECEMBER 31, 1997       
                                                                          ---------------------------------------------------
                                                                            INCOME              SHARES              PER SHARE
                                                                          (NUMERATOR)         (Denominator)           Amount 
                                                                          ------------        -------------          ------  
         <S>                                                              <C>                  <C>                  <C>      
         Basic earnings per common share                                                                                     
              from continuing operations...............................   $26,844,000           18,315,000            $1.47  
                                                                                                                             
         Dilutive effect of stock options..............................            --              921,000                   
                                                                          -----------           ----------                   
         Diluted earnings per common share                                                                                   
              from continuing operations...............................   $26,844,000           19,236,000            $1.40  
                                                                                                                             
         <CAPTION>                                                                                                           
                                                                                  FOR THE YEAR ENDED DECEMBER 31, 1996       
                                                                          ---------------------------------------------------
                                                                            INCOME               SHARES             PER SHARE
                                                                          (NUMERATOR)           (Denominator)         Amount 
                                                                          -----------           ------------          ------ 
         <S>                                                              <C>                   <C>                 <C>      
         Basic earnings per common share                                                                                     
              from continuing operations...............................   $23,146,000            18,497,000           $1.25  
                                                                                                                             
         Dilutive effect of stock options..............................            --               867,000                  
                                                                          -----------            ----------                  
         Diluted earnings per common share                                                                                   
              from continuing operations...............................   $23,146,000            19,364,000           $1.20  

         --------------------------------------------------------------------------------------------------------------------
</TABLE>

         Options to purchase 422,000, 580,000, and 544,000 shares of common
         stock, with an average exercise price per share of $89.43, $42.00, and
         $24.20, were outstanding during 1998, 1997, and 1996, respectively, but
         were excluded from the diluted earnings per common share calculation
         because the option's exercise price was greater than the average market
         price of the Company's common stock.

                                                                              41
<PAGE>
 
     According to SFAS 128, all earnings per common share data previously
     reported have been restated to comply with its provisions.  The effect of
     this accounting change on previously reported earnings per common share
     data is as follows:

<TABLE> 
<CAPTION> 
     ------------------------------------------------------------------------------------------------------------
                                                                                                         1996    
                                                                                                         ----    
     <S>                                                                                                 <C>     
     Per common share amounts from continuing operations:                                                        
     Primary earnings per common share as reported..................................................     $1.20   
     Effect of SFAS 128.............................................................................       .05   
                                                                                                         -----   
     Basic earnings per common share as restated....................................................     $1.25   
                                                                                                                 
                                                                                                                 
     Fully diluted earnings per common share as reported............................................     $1.20
     Effect of SFAS 128.............................................................................       .00
                                                                                                         -----
     Diluted earnings per common share as restated..................................................     $1.20 
     ------------------------------------------------------------------------------------------------------------
</TABLE>

     COMPREHENSIVE INCOME - In 1998, the Company adopted Statement of Financial
     Accounting Standards No. 130, "Reporting Comprehensive Income" ("SFAS
     130").  SFAS 130 establishes standards for reporting and presentation of
     comprehensive income and its components (revenues, expenses, gains and
     losses) in a full set of general-purpose financial statements that is
     presented with equal prominence as other financial statements.
     Comprehensive income consists of net income, foreign currency translation
     adjustments, and unrealized holding gains and losses.  The adoption of SFAS
     130 had no impact on total shareholders' equity and is presented on the
     accompanying Consolidated Statements of Shareholders' Equity.  Prior year
     financial statements have been reclassified to conform with the provisions
     established in SFAS 130.

<TABLE>
<CAPTION>
     ----------------------------------------------------------------------------------------------------------------------
                                                                                                    TAX
                                                                                  PRE-TAX        (EXPENSE)     NET-OF TAX
                                                                                  AMOUNT         OR BENEFIT      AMOUNT
                                                                                  ------         ----------      ------
     <S>                                                                      <C>                <C>             <C>
     For the Year Ended December 31, 1996:                                 
     ------------------------------------                                  
                                                                           
     Unrealized gains on investments:                                      
          Unrealized holding gains arising during period....................      $   273           $(106)        $ 167        
        Less: reclassification adjustment for                                                                                  
          gains realized in net income......................................       (1,097)            428          (669)       
                                                                                  -------           -----         -----        
        Net unrealized loss.................................................         (824)            322          (502)       
                                                                                                                               
     Foreign currency translation adjustments...............................         (195)             76          (119)       
                                                                                  -------           -----         -----        
                                                                                                                               
     Total other comprehensive loss.........................................      $(1,019)          $ 398         $(621)       
                                                                                  =======           =====         =====        
                                                                                                                               
     FOR THE YEAR ENDED DECEMBER 31, 1997:                                                                                     
     ------------------------------------                                                                                      
                                                                                                                               
     Unrealized holding loss arising during period..........................      $  (393)          $ 153         $(240)       
     Foreign currency translation adjustments...............................         (123)             48           (75)       
                                                                                  -------           -----         -----        
                                                                                                                               
     Total other comprehensive loss.........................................      $  (516)          $ 201         $(315)       
                                                                                  =======           =====         =====        
                                                                                                                               
     FOR THE YEAR ENDED DECEMBER 31, 1998:                                                                                     
     ------------------------------------                                                                                      
                                                                                                                               
     Unrealized holding gains arising during period.........................      $    15           $  (6)        $   9        
     Foreign currency translation adjustments...............................           42             (16)           26        
                                                                                  -------           -----         -----        
                                                                                                                               
     Total other comprehensive income.......................................      $    57           $ (22)        $  35        
                                                                                  =======           =====         =====         
     ----------------------------------------------------------------------------------------------------------------------
</TABLE>

                                                                              42
<PAGE>
 
     Management's Use of Estimates - The preparation of financial statements in
     conformity with generally accepted accounting principles requires
     management to make estimates and assumptions that affect the reported
     amounts of assets and liabilities and disclosure of contingent assets and
     liabilities at the date of the financial statements and the reported
     amounts of revenues and expenses during the reporting period. Actual
     results could differ from those estimates.

     RECLASSIFICATIONS - The financial statements for prior years have been
     reclassified to conform with current-year presentation.


NOTE 2 - DISCONTINUED OPERATIONS:

     In May 1995, the Company's Board of Directors approved a plan of disposal
     for the SEI Capital Resources Division ("CR") and the SEI Defined
     Contribution Retirement Services Division ("DC"). CR provided investment
     performance evaluation services, consulting services, and brokerage
     services to employee benefit plan sponsors and investment advisors in the
     United States. DC provided administrative and processing services,
     recordkeeping services, and employee retirement planning materials for use
     by defined contribution plans. In 1996, the Company completed the transfer
     of DC's full service recordkeeping operations to KPMG Peat Marwick. CR and
     DC were being accounted for together as discontinued operations. The
     accompanying Consolidated Financial Statements reflect the operating
     results and balance sheet items of the discontinued operations separately
     from continuing operations.

     At the measurement date, the Company expected the sale of CR would have
     resulted in a gain on the disposal of CR's assets which would have been
     sufficient to offset any losses incurred by DC. As a result, no provision
     for estimated losses was established for the period from the measurement
     date to the estimated disposal date. In the fourth quarter of 1996, based
     on current information, management of the Company concluded that any
     proceeds received from a possible sale of CR would not be sufficient to
     offset the remaining net assets of CR and DC. Therefore, the Company
     recorded a charge of $16,335,000 ($.88 basic earnings per common share and
     $.85 diluted earnings per common share), net of income tax benefit of
     $5,139,000. This provision was established to cover all future costs
     associated with the disposal of CR and DC. This provision is reflected in
     Accrued discontinued operations disposal costs on the accompanying
     Consolidated Balance Sheets.

     In July 1997, the Company entered into a definitive agreement to sell the
     remaining net assets of CR to a private investment firm. The deal was
     closed on December 31, 1997. Based upon the terms of the agreement, the
     Company received a specified amount at closing which was subject to
     adjustment. The adjustment to the purchase price consisted of a working
     capital adjustment plus an amount representing the net amount of cash
     activity from CR's operations during the period between August 18, 1997 and
     December 31, 1997. Additionally, the Company received a note from the
     acquiring firm, which was due in two installments in August 1998 and
     February 1999. As of March 29, 1999, the Company has not received any
     principal payments on this note. No additional gain or loss was recorded at
     December 31, 1997 as a result of this transaction. Any additional gain will
     be recorded when payment on the note is received.

     The charge recorded in the fourth quarter of 1996 included certain
     estimates relating to the Company's future commitments on certain of its
     operating leases utilized by CR. These estimates were based upon certain
     assumptions relating to the sub-leasing of these facilities. In 1998, these
     sub-lease arrangements were finalized. As a result, the original
     discontinued operations provision was overstated. Accordingly, the Company
     reduced the discontinued operations provision by $1,154,000, net of tax
     expense of $444,000, which is reflected in Income from disposal of
     discontinued operations on the Consolidated Statements of Operations.

                                                                              43
<PAGE>
 
NOTE 3 - RECEIVABLES:

     Receivables on the accompanying Consolidated Balance Sheets consist of the
     following:

<TABLE>
<CAPTION>
                                                                                  1998             1997      
     --------------------------------------------------------------------------------------------------------
     <S>                                                                       <C>              <C>          
     Trade receivables..................................................       $14,586,000      $16,219,000  
     Fees earned, not received..........................................         2,558 000        2,308,000  
     Fees earned, not billed............................................        11,975,000       13,865,000  
                                                                               -----------      -----------  
                                                                                                             
                                                                                29,119,000       32,392,000  
                                                                                                             
     Less:  Allowance for doubtful accounts.............................        (1,200,000)      (1,200,000) 
                                                                               -----------      -----------  
                                                                                                             
                                                                               $27,919,000      $31,192,000  
     -------------------------------------------------------------------------------------------------------- 
</TABLE>
                                        
     Fees earned, not received represent brokerage commissions earned but not
     yet collected.  Fees earned, not billed represent cash receivables earned
     but unbilled and result from timing differences between services provided
     and contractual billing schedules.

     Receivables from regulated investment companies on the accompanying
     Consolidated Balance Sheets represent fees collected from the Company's
     wholly owned subsidiaries, SIDCO and SIMC, for distribution, investment
     advisory, and administration services provided by these subsidiaries to
     various regulated investment companies sponsored by the Company (See Note
     13).


NOTE 4 - LOANS RECEIVABLE AVAILABLE FOR SALE:

     Loans receivable available for sale represent loans which were purchased
     through SEI Capital AG, which is based in Zurich.  These receivables are
     reported at the lower of cost or market, and any difference between the
     purchase price and the related loan principal amount is recognized as an
     adjustment of the yield over the life of the loan using the effective
     interest method.  Each loan receivable involves various risks, including,
     but not limited to, country, interest rate, credit, and liquidity risk.
     Management evaluates and monitors these risks on a continual basis to
     ensure that these loan receivables are recorded at their realizable value.
     This evaluation is based upon management's best estimates and the amounts
     the Company will ultimately realize could differ from these estimates.  The
     Company intends to sell these loans within a year from the balance sheet
     date.


NOTE 5 - OTHER ASSETS:

     Other assets on the accompanying Consolidated Balance Sheets consist of the
     following:

<TABLE>
<CAPTION>
                                                                                             1998                  1997    
     -----------------------------------------------------------------------------------------------------------------------
     <S>                                                                                 <C>                  <C>          
     Investments available for sale................................................      $ 3,565,000          $   876,000  
     Investment in unconsolidated affiliate........................................        2,573,000                   --  
     Customer lists, net of accumulated                                                                                    
        amortization of $291.......................................................               --            3,009,000  
     Other, net....................................................................        9,296,000           10,433,000  
                                                                                         -----------          -----------  
                                                                                                                           
     Other assets..................................................................      $15,434,000          $14,318,000   
     -----------------------------------------------------------------------------------------------------------------------
</TABLE>

                                                                              44
<PAGE>
 
     INVESTMENTS AVAILABLE FOR SALE - Investments available for sale consist of
     investments in mutual funds sponsored by the Company.  The Company accounts
     for investments in marketable securities pursuant to Statement of Financial
     Accounting Standards No. 115, "Accounting for Certain Investments in Debt
     and Equity Securities" ("SFAS 115").  SFAS 115 requires that debt and
     equity securities classified as available for sale be reported at market
     value.  Unrealized holding gains and losses, net of income taxes, are
     reported as a separate component of Comprehensive income.  Realized gains
     and losses, as determined on a specific identification basis, are reported
     separately on the accompanying Consolidated Statements of Operations.

     Investments available for sale had an aggregate cost of $3,645,000 and
     $1,000,000 at December 31, 1998 and 1997, respectively.  These securities
     had an aggregate market value of $3,565,000 and  $876,000, with gross
     unrealized holding losses of $80,000 and $124,000 at December 31, 1998 and
     1997, respectively.  The net unrealized holding losses of $49,000 and
     $75,000 (net of income tax benefit of $31,000 and $49,000) were reported as
     a separate component of Accumulated other comprehensive losses on the
     accompanying Consolidated Balance Sheets at December 31, 1998 and 1997,
     respectively.  There were no gross unrealized holding gains as of December
     31, 1997.

     In 1996, proceeds from the sale of securities classified as Investments
     available for sale were $6,536,000.  The aggregate cost of these securities
     prior to sale was $5,439,000, resulting in a realized gain of $1,097,000.
     This gain is reflected in Gain on sale of investments available for sale on
     the accompanying Consolidated Statements of Operations.  The Company did
     not sell any of its investments in 1997.

     INVESTMENT IN UNCONSOLIDATED AFFILIATE - In 1994, the Company and three
     leading academics in the field of finance formed a general partnership, LSV
     Asset Management ("LSV").  The Company contributed $1,000,000 in cash for a
     51 percent general partnership interest and the other three partners
     contributed all of its rights, title, and interest in the Quantitative
     Value Analysis Method and Software in consideration for aggregate
     partnership interests of 49 percent.  LSV is a registered investment
     advisor which provides investment advisory services to institutions,
     including pension plans and investment companies.  LSV is currently the
     investment sub-advisor to a portion of SEI Large Cap Value Fund and SEI
     Small Cap Value Fund, two of several portfolios included in both SEI
     Institutional Managed Trust and SEI Institutional Investments Trust, which
     are open-end regulated investment companies.  In addition, LSV is a
     portfolio manager of certain assets within SEI U.S. Equity Portfolio, which
     is one of many portfolios included in SEI Global Master Fund, a variable
     limited liability investment company organized in Ireland.

     Beginning in the first quarter of 1998, the Company's interest in LSV was
     reduced to approximately 45 percent.  As a result, the Company modified its
     accounting for LSV from the consolidation method to the equity method.  The
     Company's portion of LSV's net earnings is reflected in Equity in the
     earnings of unconsolidated affiliate on the accompanying Consolidated
     Statements of Operations.

     The following table contains condensed financial information of LSV:

<TABLE>
<CAPTION>
     CONDENSED STATEMENT OF OPERATIONS                                                         1998     
     ---------------------------------------------------------------------------------------------------
     <S>                                                                                   <C>          
     Revenues........................................................................      $10,810,000  
                                                                                                        
     Net income......................................................................      $ 6,637,000  
     --------------------------------------------------------------------------------------------------- 
</TABLE>

                                                                              45
<PAGE>
 
<TABLE>
<CAPTION>
     CONDENSED BALANCE SHEET                                                                  1998       
     --------------------------------------------------------------------------------------------------
     <S>                                                                                   <C>               
     Current assets..................................................................      $6,284,000
     Non-current assets..............................................................         100,000
                                                                                           ----------
                                                                                                             
     Total assets....................................................................      $6,384,000
                                                                                                             
     Current liabilities.............................................................      $1,096,000
     Partners' capital...............................................................       5,288,000
                                                                                           ----------
     Total liabilities and                                                                                   
        partners' capital............................................................      $6,384,000
     --------------------------------------------------------------------------------------------------
</TABLE>

     CUSTOMER LISTS - Customer Lists represent the value assigned to customer
     relationships obtained in various acquisitions.  Customer Lists are
     amortized on a straight-line basis over 10 years.  Amortization expense for
     1998 and 1997 was $384,000 and $291,000, respectively.  There was no
     amortization expense in 1996.

     Management continually evaluates the realizability of intangible assets
     based on estimates of undiscounted future cash flows over the remaining
     useful life of the asset.  If the amount of such estimated undiscounted
     future cash flow is less than the net book value of the asset, the asset is
     written down to its net realizable value.  In the fourth quarter of 1998,
     the Company recorded a charge of $2,662,000 to write-off the remaining
     value assigned to customer lists acquired in the 1996 acquisition of a
     company in Latin America.  A recent change in the strategic direction of
     this business resulted in a devaluation of the customer list that was
     originally acquired.


NOTE 6 - LINE OF CREDIT:

     The Company has a line of credit agreement (the "Agreement") with its
     principal lending institution which provides for borrowings of up to
     $50,000,000.  The Agreement ends on May 31, 1999, at which time the
     outstanding principal balance, if any, becomes due unless the Agreement is
     extended.  Management believes the Agreement will be extended.  The line of
     credit, when utilized, accrues interest at the Prime rate or three-tenths
     percent above the London Interbank Offered Rate.  The Company is obligated
     to pay a commitment fee equal to one-tenth percent per annum on the average
     daily unused portion of the commitment.  Certain covenants under the
     Agreement require the Company to maintain specified levels of net worth and
     place certain restrictions on investments.

     The maximum month-end amount of debt outstanding on the Company's line of
     credit for the years ended December 31, 1998 and 1997 was $15,000,000 and
     $30,000,000, respectively.  Interest expense, including commitment fees, on
     the Company's line of credit was $127,000, $302,000, and $794,000 based on
     a weighted average interest rate of approximately 5.9 percent, 5.8 percent,
     and 6.0 percent for the years ended December 31, 1998, 1997, and 1996,
     respectively.

                                                                              46
<PAGE>
 
NOTE 7 - LONG-TERM DEBT:

     On February 24, 1997, the Company signed a Note Purchase Agreement
     authorizing the issuance and sale of $20,000,000 of 7.20% Senior Notes and
     $15,000,000 of 7.27% Senior Notes (collectively, the "Notes") in a private
     offering with certain financial institutions.  The Notes are unsecured with
     final maturities ranging from 10 to 15 years.  The proceeds from the Notes
     were used to repay the outstanding balance on the Company's line of credit
     at that time.  The Note Purchase Agreement, as amended, contains various
     covenants, including limitations on indebtedness, maintenance of minimum
     net worth levels, and restrictions on certain investments.  In addition,
     the agreement limits the Company's ability to merge or consolidate, and to
     sell certain assets.  Principal payments on the Notes are made annually
     from the date of issuance while interest payments are made semi-annually.
     The Company paid the first two principal payments for $2,000,000 each in
     February 1998 and 1999.  The carrying amount of the Company's long-term
     debt approximates its fair value.

     Aggregate maturities of long-term debt at December 31, 1998 are:

<TABLE>
     --------------------------------------------------------------------------------------------------------
     <S>                                                                                 <C>              
     1999..........................................................................            $ 2,000,000
     2000..........................................................................              2,000,000
     2001..........................................................................              2,000,000
     2002..........................................................................              2,000,000
     2003..........................................................................              4,000,000
     2004 and thereafter...........................................................             21,000,000
                                                                                               -----------
                                                                                                          
                                                                                               $33,000,000 
     --------------------------------------------------------------------------------------------------------
</TABLE>

     Interest expense relating to the Company's long-term debt was $2,448,000
     and $2,186,000 for the years ended December 31, 1998 and 1997,
     respectively.


NOTE 8 - SHAREHOLDERS' EQUITY:

     STOCK-BASED COMPENSATION PLANS - The Company has several stock option plans
     under which non-qualified and incentive stock options for common stock are
     available for grant to officers, directors, and key employees.  The options
     granted and the option prices are established by the Board of Directors in
     accordance with the terms of the plans.  The Board of Directors has
     reserved an aggregate 14,605,000 shares for grant under these plans.  All
     options outstanding were granted at prices equal to the fair market value
     of the stock on the date of grant and expire 10 years after the date of
     grant.  All options granted prior to December 1997 vest ratably over a four
     year period from the date of grant.  All options granted in December 1997
     and after vest ratably upon the Company's attainment of specific earnings
     levels or entirely after seven years from the date of grant.

     The Company accounts for its stock option plans in accordance with APB
     Opinion No. 25, "Accounting for Stock Issued to Employees".  Accordingly,
     no compensation expense has been recognized.  In 1995, the Financial
     Accounting Standards Board issued Statement of Financial Accounting
     Standards No. 123, "Accounting for Stock-Based Compensation" ("SFAS 123").
     SFAS 123 establishes a fair value based method of accounting for stock-
     based compensation plans.  SFAS 123 requires that an employer's financial
     statements include certain disclosures about stock-based employee
     compensation arrangements regardless of the method used to account for the
     plan.  Had the Company recognized compensation cost for its stock option
     plans consistent with the provisions of SFAS 123, the Company's net income
     and earnings per common share would have been reduced to the following pro
     forma amounts:

                                                                              47
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                 1998            1997          1996  
     ----------------------------------------------------------------------------------------------------------------
     <S>                                                                      <C>             <C>             <C>    
     Net income:                                                                                                     
          As reported...................................................      $43,689         $26,844         $6,811 
          Pro forma.....................................................      $37,721         $25,334         $6,201 
                                                                                                                     
     Basic earnings per common share:                                                                                
          As reported...................................................      $  2.45         $  1.47         $  .37 
          Pro forma.....................................................      $  2.12         $  1.38         $  .34 
                                                                                                                     
     Diluted earnings per common share:                                                                              
          As reported...................................................      $  2.28         $  1.40         $  .35 
          Pro forma.....................................................      $  1.97         $  1.32         $  .32 
     ---------------------------------------------------------------------------------------------------------------- 
</TABLE>
                                        
     Because the SFAS 123 method of accounting has not been applied to options
     granted prior to January 1, 1995, the resulting pro forma compensation cost
     may not be representative of that to be expected in future years.

     The weighted average fair value of the stock options granted during 1998,
     1997, and 1996 was $121.86, $59.71, and $31.31, respectively.  The fair
     value of each option grant is estimated on the date of grant using the
     Black-Scholes option pricing model with the following weighted average
     assumptions:

<TABLE>
<CAPTION>
                                                                                1998         1997       1996   
     ----------------------------------------------------------------------------------------------------------
     <S>                                                                       <C>          <C>        <C>     
     Risk-free interest rate............................................        5.34%        6.55%      6.70%  
     Expected dividend yield............................................        1.00%        1.00%      1.00%  
     Expected life......................................................       7 YEARS      7 Years    7 Years 
     Expected volatility................................................       40.19%       37.36%     34.87%  
     ---------------------------------------------------------------------------------------------------------- 
</TABLE>
                                        
     Certain information relating to the Company's stock option plans for 1998,
     1997, and 1996 is summarized as follows:

<TABLE>
<CAPTION>
     -------------------------------------------------------------------------------------------------------------------
                                                                                                          Weighted         
                                                                                      Number of           Average          
                                                                                        Shares         Exercise Price      
                                                                                        ------         --------------      
     <S>                                                                            <C>                <C>               
     Balance as of December 31, 1995..........................................        4,127,000           $13.44         
     Granted..................................................................          365,000            21.65         
     Exercised................................................................         (554,000)            8.02         
     Expired or canceled......................................................          (82,000)           20.44         
                                                                                      ---------                          
                                                                                                                         
     Balance as of December 31, 1996..........................................        3,856,000            14.85         
     Granted..................................................................          622,000            40.55         
     Exercised................................................................         (625,000)           12.83         
     Expired or canceled......................................................          (58,000)           22.25         
                                                                                      ---------                          
                                                                                                                         
     Balance as of December 31, 1997..........................................        3,795,000            19.27         
     ------------------------------------------------------------------------------------------------------------------- 
</TABLE>

                                                                              48
<PAGE>
 
<TABLE>
<CAPTION>
     --------------------------------------------------------------------------------------------------------------------
                                                                                                           Weighted      
                                                                                       Number of            Average      
                                                                                         Shares          Exercise Price  
                                                                                         ------          --------------  
     <S>                                                                                <C>              <C>             
     Balance as of December 31, 1997..........................................          3,795,000             19.27          
     Granted..................................................................            508,000             84.07          
     Exercised................................................................           (964,000)            11.70          
     Expired or canceled......................................................            (95,000)            32.49          
                                                                                        ---------                            
                                                                                                                             
     Balance as of December 31, 1998..........................................          3,244,000            $31.25          
                                                                                                                             
     Exercisable as of December 31, 1998......................................          1,976,000            $15.99          
                                                                                                                             
     Available for future grant as of December 31, 1998.......................          1,429,000                --          
     -------------------------------------------------------------------------------------------------------------------- 
</TABLE>

     As of December 31, 1997 and 1996, there were 2,725,000 shares and 3,010,000
     shares exercisable, respectively.  The expiration dates for options at
     December 31, 1998 range from July 17, 1999 to December 16, 2008, with a
     weighted average remaining contractual life of 6.2 years.

     The following table summarizes information relating to all options
     outstanding at December 31, 1998:

<TABLE>
<CAPTION>
     ---------------------------------------------------------------------------------------------------------
                               Options Outstanding                Options Exercisable                         
                               at December 31, 1998               at December 31, 1998                        
                           -----------------------------     ------------------------------                   
                                                                                                  Weighted    
                                             Weighted                            Weighted          Average                          
         Range of                             Average                            Average          Remaining                         
         Exercise            Number          Exercise          Number            Exercise        Contractual                        
          Prices               of              Price             of               Price             Life                            
        (Per Share)          Shares         (Per Share)        Shares          (Per Share)         (Years)                          
        -----------          ------         -----------        ------          -----------         -------    
     <S>                   <C>              <C>              <C>               <C>               <C>          
     $  8.00 -  $13.00       748,000          $ 9.95           748,000           $ 9.95              2.3      
       13.75 -   18.50       670,000           16.65           668,000            16.65              4.8      
       19.50 -   26.25       794,000           22.73           560,000            23.25              6.7      
       42.00 -   57.00       598,000           43.75                --               --              9.1      
       68.75 -   89.75       434,000           88.83                --               --              9.9       
                           ---------                         ---------                                        
                           3,244,000                         1,976,000                                        
     --------------------------------------------------------------------------------------------------------- 
</TABLE>

     EMPLOYEE STOCK PURCHASE PLAN - The Company has an employee stock purchase
     plan that provides for offerings of common stock to eligible employees at a
     price equal to 85 percent of the fair market value of the stock at the end
     of the stock purchase period, as defined.  The Company has reserved
     1,300,000 shares for issuance under this plan.  At December 31, 1998,
     761,000 cumulative shares have been issued.

     COMMON STOCK BUYBACK - The Board of Directors has authorized the purchase
     of the Company's common stock on the open market or through private
     transactions of up to an aggregate of $298,365,000.  Through December 31,
     1998, a total of 15,503,000 shares at an aggregate cost of $264,278,000
     have been purchased and retired.  The Company purchased 867,000 shares at a
     cost of $55,156,000 during 1998.

     The Company immediately retires its common stock when purchased.  Upon
     retirement, the Company reduces Capital in excess of par value for the
     average capital per share outstanding and the remainder is charged against
     Retained earnings.  If the Company reduces its Retained earnings to zero,
     any subsequent purchases of common stock will be charged entirely to
     Capital in excess of par value.

                                                                              49
<PAGE>
 
     SHAREHOLDERS' RIGHTS PLAN - On December 10, 1998, the Company's Board of
     Directors adopted a new Shareholder Rights Plan to replace the Shareholder
     Rights Plan originally adopted in 1988 which expired on December 19, 1998.
     The Company's Shareholders Rights Plan is designed to deter coercive or
     unfair takeover tactics and to prevent a person or group from acquiring
     control of the Company without offering a fair price to all shareholders.

     Under the terms of the 1998 Shareholder Rights Plan, all common
     shareholders of record at the close of business on December 19, 1999 shall
     receive one Right for each outstanding common share of the Company.  Any
     new common shares issued after December 19, 1999 will receive one Right for
     each common share.  Each Right entitles the registered holder to purchase
     from the Company one two-thousandths of a share of Series A Junior
     Participating Preferred Shares, par value $.05 per share, at an exercise
     price of $500 per share.  The Rights will become exercisable and trade
     separately from the Common Stock 10 days following a public announcement
     that a person or group is the beneficial owner of 20 percent or more of the
     outstanding Common Shares (the "Stock Acquisition Date"), or the
     commencement of a tender or exchange offer that would result in such a
     person or group owning 20 percent or more of the outstanding Common Shares.

     In the event that the Company is involved in a merger or other business
     combination in which the Company survives and its common stock remains
     outstanding, the other stockholders will be able to exercise the Rights and
     buy common stock of the Company having twice the value of the exercise
     price of the Rights.  Additionally, if the Company is involved in certain
     other mergers where its shares are exchanged or certain major sales of its
     assets occur, stockholders will be able to purchase the other party's
     common shares in an amount equal to twice the value of the exercise price
     of the Rights.  Upon the occurrence of any of these events, the Rights will
     no longer be exercisable into Preferred Shares.

     The Rights, which do not have voting rights, will expire on December 19,
     2008, and may be redeemed by the Company any time until ten days following
     the Stock Acquisition Date at a price of $.01 per Right.

     DIVIDENDS - On May 21, 1998, the Board of Directors declared a cash
     dividend of $.16 per share on the Company's common stock, which was paid on
     June 30, 1998, to shareholders of record on June 16, 1998.  On December 10,
     1998, the Board of Directors declared a cash dividend of $.16 per share on
     the Company's common stock, which was paid on January 25, 1999, to
     shareholders of record on January 5, 1999.

     The dividends declared in 1998 and 1997 were $5,701,000 and $5,045,000,
     respectively.  The Board of Directors has indicated its intention to pay
     future dividends on a semiannual basis.


NOTE 9 - EMPLOYEE BENEFIT PLAN:

     The Company has a tax-qualified defined contribution plan (the "Plan").
     The Plan provides retirement benefits, including provisions for early
     retirement and disability benefits, as well as a tax-deferred savings
     feature.  After satisfying certain requirements, participants are vested in
     employer contributions at the time the contributions are made.  All Company
     contributions are discretionary and are made from available profits.  The
     Company contributed $1,471,000, $1,412,000, and $1,345,000 to the Plan in
     1998, 1997, and 1996, respectively.

                                                                              50
<PAGE>
 
NOTE 10 - COMMITMENTS AND CONTINGENCIES:

     The Company has entered into various operating leases for facilities, data
     processing equipment, and software.  Some of these leases contain
     escalation clauses for increased taxes and operating expenses.  Rent
     expense was $14,142,000, $16,192,000, and $17,527,000 in 1998, 1997, and
     1996, respectively.

     Aggregate noncancellable minimum lease commitments at December 31, 1998
     are:

<TABLE>
     -------------------------------------------------------------------------------------------------
     <S>                                                                                 <C>                  
     1999..........................................................................      $ 6,658,000    
     2000..........................................................................        5,036,000    
     2001..........................................................................        4,330,000    
     2002..........................................................................        1,887,000    
     2003..........................................................................        1,430,000    
     2004 and thereafter...........................................................          125,000    
                                                                                         -----------    
                                                                                                              
                                                                                         $19,466,000    
     -------------------------------------------------------------------------------------------------
</TABLE>

     The Company has future lease obligations relating to office facilities that
     were being used by its discontinued operations.  The Company established a
     provision for future lease commitments relating to these facilities which
     is included in Accrued discontinued operations disposal costs on the
     accompanying Consolidated Balance Sheets.  Management of the Company
     believes this provision will be adequate to cover all future costs incurred
     relating to these facilities.  These lease obligations are not included in
     the above commitments table.

     In the normal course of business, the Company is party to various claims
     and legal proceedings.  Although the ultimate outcome of these matters is
     presently not determinable, management, after consultation with legal
     counsel, does not believe that the resolution of these matters will have a
     material adverse effect upon the Company's financial position or results of
     operations.


NOTE 11 - INCOME TAXES:

     Income taxes from continuing operations consist of the following:

<TABLE>
<CAPTION>
     YEAR ENDED DECEMBER 31,                                             1998             1997             1996        
     ------------------------------------------------------------------------------------------------------------------
     <S>                                                              <C>             <C>               <C>            
     Current                                                                                                           
         Federal...............................................       $28,841,000     $15,544,000       $10,491,000    
         State.................................................         1,671,000         726,000           486,000    
                                                                      -----------     -----------       -----------    
                                                                                                                       
                                                                       30,512,000      16,270,000        10,977,000        
                                                                      -----------     -----------       -----------        
     Deferred, including current deferred                                                                                  
         Federal...............................................        (3,020,000)        607,000         2,963,000        
         State.................................................          (588,000)        286,000           858,000        
                                                                      -----------     -----------       -----------        
                                                                                                                           
                                                                       (3,608,000)        893,000         3,821,000        
                                                                      -----------     -----------       -----------        
     Total income taxes from continuing                                                                                    
         operations............................................       $26,904,000     $17,163,000       $14,798,000         
     ------------------------------------------------------------------------------------------------------------------ 
</TABLE>

                                                                              51
<PAGE>
 
     The effective income tax rate from continuing operations differs from the
     Federal income tax statutory rate due to the following:
 
<TABLE>
<CAPTION>
     YEAR ENDED DECEMBER 31,                                                1998           1997           1996       
     ---------------------------------------------------------------------------------------------------------------- 
     <S>                                                                <C>           <C>            <C>             
     Statutory rate...............................................          35.0%          35.0%          35.0%          
     State taxes, net of Federal tax benefit......................           1.0            1.3            2.3           
     Foreign losses...............................................           3.2            1.2            1.1           
     Other, net...................................................          (0.7)           1.5            0.6           
                                                                            ----           ----           ----           
                                                                                                                         
                                                                            38.5%          39.0%          39.0%           
     ---------------------------------------------------------------------------------------------------------------- 
</TABLE>

     Deferred income taxes for 1998, 1997, and 1996 reflect the impact of
     "temporary differences" between the amount of assets and liabilities for
     financial reporting purposes and such amounts as measured by tax laws and
     regulations.  Principal items comprising the deferred income tax provision
     (benefit) from continuing operations are as follows:

<TABLE>
<CAPTION>
     YEAR ENDED DECEMBER 31,                                              1998             1997            1996     
     ---------------------------------------------------------------------------------------------------------------
     <S>                                                             <C>              <C>             <C>           
     Difference in financial reporting and income                                                                   
          tax depreciation methods.............................      $   385,000      $   996,000     $  598,000        
     Reserves not currently deductible.........................        1,000,000          (73,000)       (28,000)       
     Capitalized software currently deductible for                                                                      
          tax purposes, net of amortization....................         (674,000)       1,662,000      3,461,000        
     State deferred income taxes...............................         (382,000)         186,000        558,000        
     Revenue and expense recognized in                                                                                  
          different periods for financial reporting                                                                     
          and income tax purposes..............................       (2,722,000)      (1,508,000)      (724,000)       
     Other, net................................................       (1,215,000)        (370,000)       (44,000)       
                                                                     -----------      -----------     ----------        
                                                                                                                        
                                                                     $(3,608,000)     $   893,000     $3,821,000         
     --------------------------------------------------------------------------------------------------------------- 
</TABLE>

                                                                              52
<PAGE>
 
     The net deferred income tax asset (liability) is comprised of the
     following:

<TABLE>
<CAPTION>
     YEAR ENDED DECEMBER 31,                                               1998                1997      
     ----------------------------------------------------------------------------------------------------
     <S>                                                                <C>                <C>           
     Current deferred income taxes:                                                                      
          Gross assets............................................      $ 7,598,000        $ 6,461,000            
          Gross liabilities.......................................               --           (124,000)           
                                                                        -----------        -----------            
                                                                          7,598,000          6,337,000            
                                                                        -----------        -----------            
     Long-term deferred income taxes:                                                                             
          Gross assets............................................          116,000            243,000            
          Gross liabilities.......................................       (7,409,000)        (8,041,000)           
                                                                        -----------        -----------                   
                                                                         (7,293,000)        (7,798,000)           
                                                                        -----------        -----------            
                                                                                                                  
     Net deferred income tax asset (liability)....................      $   305,000        $(1,461,000)            
     ---------------------------------------------------------------------------------------------------- 
</TABLE>

     The Company did not record any valuation allowance against deferred tax
     assets at December 31, 1998 and 1997.

     The tax effect of significant temporary differences representing deferred
     tax assets (liabilities) is as follows:

<TABLE>
<CAPTION>
     YEAR ENDED DECEMBER 31,                                              1998                1997       
     ----------------------------------------------------------------------------------------------------
     <S>                                                             <C>                 <C>             
     Difference in financial reporting and income                                                        
          tax depreciation methods.............................      $  (119,000)        $    52,000            
     Reserves not currently deductible.........................          853,000             750,000            
     Capitalized software currently deductible for                                                              
          tax purposes, net of amortization....................       (7,288,000)         (8,088,000)           
     State deferred income taxes...............................          173,000             324,000            
     Revenue and expense recognized in                                                                          
          different periods for financial reporting                                                             
          and income tax purposes..............................        6,572,000           5,388,000            
     Unrealized holding gain on investments....................          114,000              48,000            
     Other, net................................................               --              65,000            
                                                                     -----------         -----------            
                                                                                                                
                                                                     $   305,000         $(1,461,000)            
     ---------------------------------------------------------------------------------------------------- 
</TABLE>

                                                                              53
<PAGE>
 
NOTE 12 - SEGMENT INFORMATION:

     In June 1997, the Financial Accounting Standards Board issued Statement of
     Financial Accounting Standards No. 131, "Disclosures about Segments of an
     Enterprise and Related Information" ("SFAS 131"). SFAS 131 establishes
     standards for the way public business enterprises report financial
     information about operating segments in financial statements. SFAS 131 also
     requires additional disclosures about product and services, geographic
     areas, and major customers. The Company adopted SFAS 131 in its December
     31, 1998 financial statements. All prior period segment information has
     been restated to conform with the provisions of SFAS 131.

     The Company is organized around its four primary business lines: Technology
     Services, Mutual Fund Services, Asset Management, and Investments in New
     Business.  Each segment offers different products and services that utilize
     different technology and marketing techniques.  The information in the
     following tables is derived directly from the segments' internal financial
     reporting used for corporate management purposes.  The accounting policies
     of the reportable segments are the same as those described in Note 1.  The
     Company evaluates financial performance of its operating segments based on
     income from continuing operations before income taxes.

     The Technology Services segment includes the Company's TRUST 3000 product
     line and trust operations outsourcing. The Mutual Funds Services
     segment provides administration and distribution services to proprietary
     mutual funds created for banks, insurance firms, and investment management
     companies.  The Asset Management segment provides investment solutions
     through various investment products and services distributed directly or
     through professional investment advisors, financial planners, and other
     financial intermediaries to institutional or high-net-worth markets.  The
     Investments in New Business segment consists of the Company's Canadian and
     international operations which provides investment advisory services
     globally through investment products and services and performance
     evaluation and consulting services to Canadian pension plans.

     The following tables highlight certain financial information from
     continuing operations about each of the Company's segments for the years
     ended December 31, 1998, 1997, and 1996.

<TABLE>
<CAPTION>
                                                          Mutual                   Investments                              
                                           Technology      Fund         Asset        In New                                 
     1998                                   Services     Services    Management     Business         Other         Total    
     -----------------------------------------------------------------------------------------------------------------------
     <S>                                  <C>           <C>          <C>          <C>            <C>            <C>         
     Revenues...........................  $164,648,000  $97,972,000  $90,056,000  $ 13,443,000                  $366,119,000
                                          ------------  -----------  -----------  ------------                  ------------
                                                                                                                            
     Operating                                                                                                              
        income (loss)...................  $ 49,170,000  $24,405,000  $18,091,000  $(10,318,000)  $(13,463,000)  $ 67,885,000
                                          ------------  -----------  -----------  ------------   ------------               
                                                                                                                            
     Other income, net..................                                                                        $  1,998,000
                                                                                                                ------------
                                                                                                                            
     Income from                                                                                                            
        continuing                                                                                                          
        operations before                                                                                                   
        income taxes....................                                                                        $ 69,883,000
                                                                                                                ------------
                                                                                                                            
     Depreciation and                                                                                                       
        amortization....................  $ 10,468,000  $ 1,576,000  $ 1,954,000  $    899,000   $    791,000   $ 15,688,000
                                          ------------  -----------  -----------  ------------   ------------   ------------
                                                                                                                            
     Capital                                                                                                                
        expenditures....................  $ 16,999,000  $   772,000  $ 2,469,000  $    763,000   $    771,000   $ 21,774,000
                                          ------------  -----------  -----------  ------------   ------------   ------------
                                                                                                                            
     Total assets.......................  $ 96,856,000  $17,362,000  $23,084,000  $ 15,427,000   $ 56,043,000   $208,772,000
                                          ------------  -----------  -----------  ------------   ------------   ------------
     ----------------------------------------------------------------------------------------------------------------------- 
</TABLE>

                                                                              54
<PAGE>
 
<TABLE>
<CAPTION>
                                                          Mutual                   Investments                               
                                           Technology      Fund         Asset        In New                                  
     1997                                   Services     Services    Management     Business         Other         Total     
     ----------------------------------------------------------------------------------------------------------------------- 
     <S>                                  <C>           <C>          <C>          <C>            <C>            <C>          
     Revenues...........................  $129,525,000  $83,157,000  $61,871,000   $14,439,000   $  3,757,000   $292,749,000 
                                          ------------  -----------  -----------   -----------   ------------   ------------ 
                                                                                                                             
     Operating                                                                                                               
        income (loss)...................  $ 37,146,000  $23,858,000  $ 3,281,000   $(5,799,000)  $(12,974,000)  $ 45,512,000 
                                          ------------  -----------  -----------   -----------   ------------                
                                                                                                                             
     Other expense, net.................                                                                        $  1,505,000 
                                                                                                                ------------ 
                                                                                                                             
     Income from                                                                                                             
        continuing                                                                                                           
        operations before                                                                                                    
        income taxes....................                                                                        $ 44,007,000 
                                                                                                                ------------ 
                                                                                                                             
     Depreciation and                                                                                                        
        amortization....................  $  8,634,000  $ 1,883,000  $ 1,791,000   $ 1,021,000   $    739,000   $ 14,068,000 
                                          ------------  -----------  -----------   -----------   ------------   ------------ 
                                                                                                                             
     Capital                                                                                                                 
        expenditures....................  $  9,465,000  $   600,000  $ 1,636,000   $   225,000   $  1,029,000   $ 12,955,000 
                                          ------------  -----------  -----------   -----------   ------------   ------------ 
                                                                                                                             
     Total assets.......................  $ 89,471,000  $15,559,000  $17,464,000   $29,994,000   $ 16,396,000   $168,884,000 
                                          ------------  -----------  -----------   -----------   ------------   ------------ 
     -----------------------------------------------------------------------------------------------------------------------  
</TABLE>


<TABLE>
<CAPTION>
                                                          Mutual                     Investments                              
                                           Technology      Fund          Asset         In New                                 
     1996                                   Services     Services     Management      Business         Other         Total    
     -------------------------------------------------------------------------------------------------------------------------
     <S>                                  <C>           <C>          <C>            <C>            <C>            <C>         
     Revenues...........................  $128,025,000  $62,874,000   $46,184,000    $10,354,000   $    380,000   $247,817,000
                                          ------------  -----------   -----------    -----------   ------------   ------------
                                                                                                                              
     Operating                                                                                                                
        income (loss)...................  $ 43,309,000  $15,874,000   $(2,971,000)   $(6,559,000)  $(13,566,000)  $ 36,087,000
                                          ------------  -----------   -----------    -----------   ------------               
                                                                                                                              
     Other income, net..................                                                                          $  1,857,000
                                                                                                                  ------------
                                                                                                                              
     Income from                                                                                                              
        continuing                                                                                                            
        operations before                                                                                                     
        income taxes....................                                                                          $ 37,944,000
                                                                                                                  ------------
                                                                                                                              
     Depreciation and                                                                                                         
        amortization....................  $  6,567,000  $ 1,367,000   $ 1,246,000    $   649,000   $    210,000   $ 10,039,000
                                          ------------  -----------   -----------    -----------   ------------   ------------
                                                                                                                              
     Capital                                                                                                                  
        expenditures....................  $ 20,174,000  $ 1,277,000   $ 6,763,000    $   401,000   $  4,445,000   $ 33,060,000
                                          ------------  -----------   -----------    -----------   ------------   ------------
                                                                                                                              
     Total assets.......................  $ 67,819,000  $13,283,000   $19,216,000    $26,964,000   $ 13,759,000   $141,041,000
                                          ------------  -----------   -----------    -----------   ------------   ------------
     ------------------------------------------------------------------------------------------------------------------------- 
</TABLE>

     Other consists of expenses and assets attributable to corporate overhead
     groups that are not allocated to the operating segments for internal
     financial reporting purposes.  Other in 1997 and 1996 also consists of the
     revenues, expenses, and assets of LSV, which are not allocated to any
     operating segment.  Unallocated assets primarily consist of cash and cash
     equivalents, deferred tax assets, the investment in and assets of LSV, and
     certain other shared services assets.

                                                                              55
<PAGE>
 
     The following table presents the details of Other income (expense):

<TABLE>
<CAPTION>
     FOR THE YEAR ENDED DECEMBER 31,                                      1998                1997                1996   
     --------------------------------------------------------------------------------------------------------------------
     <S>                                                             <C>               <C>                  <C>          
     Equity in the earnings of                                                                                           
        unconsolidated affiliate...............................      $ 3,015,000       $        --          $       --   
     Gain on sale of investments                                                                                         
        available for sale.....................................               --                --           1,097,000   
     Interest income...........................................        1,558,000           983,000             808,000   
     Interest expense..........................................       (2,575,000)       (2,488,000)            (48,000)  
                                                                     -----------       -----------          ----------   
                                                                                                                         
                                                                     $ 1,998,000       $(1,505,000)         $1,857,000   
     -------------------------------------------------------------------------------------------------------------------- 
</TABLE>

     The following table presents revenues by country based on the location of
     the use of the product or services.

<TABLE>
<CAPTION>
     FOR THE YEAR ENDED DECEMBER 31,                                      1998              1997              1996    
     ------------------------------------------------------------------------------------------------------------------
     <S>                                                             <C>               <C>               <C>          
     United States.............................................      $350,729,000      $277,655,000      $237,046,000 
     Canada....................................................        10,183,000         9,952,000         8,785,000 
     Other.....................................................         5,207,000         5,142,000         1,986,000 
                                                                     ------------      ------------      ------------ 
                                                                                                                      
                                                                     $366,119,000      $292,749,000      $247,817,000 
     ----------------------------------------------------------------------------------------------------------------- 
</TABLE>

     The following table presents assets based on its location.

<TABLE>
<CAPTION>
                                                                          1998              1997              1996  
     ---------------------------------------------------------------------------------------------------------------
     <S>                                                             <C>               <C>              <C>         
     United States.............................................      $193,133,000      $141,652,000     $117,225,000
     Canada....................................................         3,706,000         3,708,000        4,030,000
     Other.....................................................        11,933,000        23,524,000       19,786,000
                                                                     ------------      ------------     ------------
                                                                                                                    
                                                                     $208,772,000      $168,884,000     $141,041,000
     --------------------------------------------------------------------------------------------------------------- 
</TABLE>


                                                                              56
<PAGE>
 
NOTE 13 - RELATED PARTY TRANSACTIONS:

     SIMC, either by itself or through its wholly owned subsidiaries, is a party
     to Investment Advisory and Administration Agreements with several regulated
     investment companies ("RICs"), which are administered by the Company.
     Shares of the RICs are offered to clients of the Company and its
     subsidiaries. Under the Investment Advisory and Administration Agreements,
     SIMC receives a fee for providing investment advisory, administrative, and
     accounting services to the RICs. The investment advisory and administration
     fee is a fixed percentage of the average daily net asset value of each RIC,
     subject to certain limitations. Investment advisory and administration fees
     received by the Company totaled $152,076,000, $119,606,000, and $92,143,000
     in 1998, 1997, and 1996, respectively. SIDCO is a party to Distribution
     Agreements with several RICs, which are advised and/or administered by
     SIMC. SIDCO receives a fee from the RICs for providing distribution
     services pursuant to the provisions of various Rule 12b-1 Plans adopted by
     the RICs. These distribution fees totaled $15,480,000, $7,269,000, and
     $4,026,000 in 1998, 1997, and 1996, respectively.


NOTE 14 - QUARTERLY FINANCIAL DATA (UNAUDITED):

<TABLE>
<CAPTION>
                                                                        For the Three Months Ended                   
                                                        ----------------------------------------------------------
    1998                                                   MARCH 31      JUNE 30     SEPT. 30        DEC. 31         
   ---------------------------------------------------------------------------------------------------------------
   <S>                                                    <C>          <C>          <C>           <C>                 
   Revenues.............................................  $81,871,000  $85,499,000  $90,492,000   $108,257,000
   Income from continuing operations                                                                          
      before income taxes...............................  $12,458,000  $15,709,000  $18,546,000   $ 23,170,000
   Income from continuing operations....................  $ 7,597,000  $ 9,585,000  $11,551,000   $ 14,246,000
   Net income...........................................  $ 7,597,000  $ 9,585,000  $11,551,000   $ 14,956,000 (a)  
   Basic earnings per common share                                                                                   
      from continuing operations........................  $       .43  $       .54  $       .64   $        .80       
   Basic earnings per common share......................  $       .43  $       .54  $       .64   $        .84 (a)  
   Diluted earnings per common share                                                                                 
      from continuing operations........................  $       .40  $       .50  $       .60   $        .75
   Diluted earnings per common share....................  $       .40  $       .50  $       .60   $        .79 (a)   
   ---------------------------------------------------------------------------------------------------------------
</TABLE>

     (a)  Includes income from disposal of discontinued operations of $710,000
          or $.04 basic earnings per common share and $.04 diluted earnings per
          common share (See Note 2).

<TABLE>
<CAPTION>
                                                                      For the Three Months Ended            
                                                        ------------------------------------------------------
   1997                                                    MARCH 31      JUNE 30     SEPT. 30      DEC. 31  
   -----------------------------------------------------------------------------------------------------------
                                                                                                            
   <S>                                                    <C>          <C>          <C>          <C>        
   Revenues.............................................  $63,504,000  $70,730,000  $74,283,000  $84,232,000
   Income before income taxes...........................  $ 8,001,000  $ 8,568,000  $11,105,000  $16,333,000
   Net income...........................................  $ 4,801,000  $ 5,141,000  $ 6,939,000  $ 9,963,000
                                                                                                            
   Basic earnings per common share......................  $       .26  $       .28  $       .38  $       .55
                                                                                                            
   Diluted earnings per common share....................  $       .25  $       .27  $       .36  $       .52
   ----------------------------------------------------------------------------------------------------------- 
</TABLE>

                                                                              57
<PAGE>
 
                   SEI INVESTMENTS COMPANY AND SUBSIDIARIES
                   ----------------------------------------
                SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
                -----------------------------------------------
       FOR EACH OF THE THREE YEARS IN THE PERIOD ENDED DECEMBER 31, 1998
       -----------------------------------------------------------------

<TABLE>
<CAPTION>
                                                                Additions
                                                         ----------------------
                                               Balance at  Charged to  Charged                  Balance
                                               Beginning   Costs and   to Other                  at End
                 Description                    of Year     Expenses   Accounts  (Deductions)   of Year
- - ---------------------------------------------------------------------------------------------------------
<S>                                            <C>         <C>         <C>       <C>           <C>
For the Year Ended December 31, 1996:

    Allowance for doubtful accounts            $1,206,000    $144,000  $    --   $       --    $1,350,000
                                               ==========    ========  =======   ==========    ===========
 
For the Year Ended December 31, 1997:
 
    Allowance for doubtful accounts            $1,350,000    $     --  $    --   $ (150,000)   $1,200,000
                                               ==========    ========  =======   ==========    ===========
 
For the Year Ended December 31, 1998:
 
    Allowance for doubtful accounts            $1,200,000    $     --  $    --   $       --    $1,200,000
                                               ==========    ========  =======   ==========    ==========
</TABLE>
<PAGE>
 
ITEM 9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
         ---------------------------------------------------------------
         FINANCIAL DISCLOSURE.
         -------------------- 

None.

                                                                              59
<PAGE>
 
                                   PART III
                                   --------
                                        

ITEM 10.  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT.
          -------------------------------------------------- 

The information required by this item concerning directors is hereby
incorporated by reference to the Company's definitive proxy statement for its
1999 Annual Meeting of Shareholders to be filed with the Securities and Exchange
Commission within 120 days after December 31, 1998 pursuant to Regulation 14A
under the Securities Exchange Act of 1934, as amended (the "1999 Proxy
Statement").

The executive officers of the Company are as follows:

ALFRED P. WEST, JR., 56, has been the Chairman of the Board of Directors and
Chief Executive Officer of the Company since its inception in 1968.  Mr. West
was President from June 1979 to August 1990.

HENRY H. GREER, 61, has been Chief Financial Officer since September 1996.  Mr.
Greer has been President and Chief Operating Officer since August 1990, and was
an Executive Vice President from July 1990 to August 1990.  Mr. Greer has been a
Director since November 1979.

CARMEN V. ROMEO, 55, has been an Executive Vice President since December 1985.
Mr. Romeo has been a Director since June 1979.  Mr. Romeo was Treasurer and
Chief Financial Officer from June 1979 to September 1996.

RICHARD B. LIEB, 51, has been an Executive Vice President since October 1990,
and a Director since May 1995.

CARL A. GUARINO, 41, has been a Senior Vice President since April 1988, and was
General Counsel from April 1988 to January 1994.

EDWARD D. LOUGHLIN, 48, has been an Executive Vice President since January 1994
and a Senior Vice President since January 1988.

DENNIS J. MCGONIGLE, 38, has been an Executive Vice President since July 1996.
Mr. McGonigle has been a Senior Vice President since January 1994 and a Vice
President since January 1991.

KEVIN P. ROBINS, 37, has been a Senior Vice President and General Counsel since
January 1994 and a Vice President since January 1992.

                                                                              60
<PAGE>
 
ITEM 11.  EXECUTIVE COMPENSATION.
          ---------------------- 

The information called for in this item is hereby incorporated by reference to
the 1999 Proxy Statement.

ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT.
          -------------------------------------------------------------- 

The information called for in this item is hereby incorporated by reference to
the 1999 Proxy Statement.

ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS.
          ---------------------------------------------- 

The information called for in this item is hereby incorporated by reference to
the 1999 Proxy Statement.

                                                                              61

<PAGE>
 
                                    PART IV
                                    -------
                                        

ITEM 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K.
          ---------------------------------------------------------------- 

(a)  1 and 2.  Financial Statements and Financial Statement Schedules.  The
               ------------------------------------------------------      
               following is a list of the Consolidated Financial Statements of
               the Company and its subsidiaries and supplementary data filed as
               part of Item 8 hereof:

               Report of Independent Public Accountants
               Consolidated Balance Sheets -- December 31, 1998 and 1997
               Consolidated Statements of Operations -- For the years ended
                 December 31, 1998, 1997, and 1996
               Consolidated Statements of Shareholders' Equity -- For the years
                 ended December 31, 1998, 1997, and 1996
               Consolidated Statements of Cash Flows -- For the years ended
                 December 31, 1998, 1997, and 1996
               Notes to Consolidated Financial Statements
               Schedule II -- Valuation and Qualifying Accounts

               All other schedules are omitted because they are not applicable,
               or not required, or because the required information is included
               in the Consolidated Financial Statements or notes thereto.

          3.   Exhibits, Including Those Incorporated by Reference. The exhibits
               ---------------------------------------------------    
               to this Report are listed on the accompanying index to exhibits
               and are incorporated herein by reference or are filed as part of
               this annual report on Form 10-K.

(b)            Reports on Form 8-K.  No reports on Form 8-K were filed by the 
               -------------------       
               Company during the quarter ended December 31, 1998.

                                                                              62
<PAGE>
 
                                  SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange
Act of 1934, the Registrant has duly caused this report to be signed on its
behalf by the undersigned, thereunto duly authorized.

                                        SEI INVESTMENTS COMPANY
 
Date  March 29, 1999                    By /s/ Henry H. Greer
    -----------------------------          ---------------------------------
                                           Henry H. Greer
                                           President, Chief Operating
                                           Officer, Chief Financial Officer
                                           and Director


Pursuant to the requirements of the Securities Exchange Act of 1934, this report
has been signed below by the following persons on behalf of the Registrant and
in the capacities and on dates indicated.

 
Date   March 29, 1999                   By /s/ Alfred P. West, Jr.
    -----------------------------          ---------------------------------
                                           Alfred P. West, Jr.
                                           Chairman of the Board,
                                           Chief Executive Officer,
                                           and Director
                                           
Date   March 29, 1999                   By /s/Carmen V. Romeo
    -----------------------------          --------------------------------- 
                                           Carmen V. Romeo
                                           Executive Vice President and
                                           Director
                                           
Date   March 29, 1999                   By /s/ Richard B. Lieb
    -----------------------------          --------------------------------- 
                                           Richard B. Lieb
                                           Executive Vice President and
                                           Director
                                           
                                           
                                           
Date   March 29, 1999                   By /s/ William M. Doran
    -----------------------------          --------------------------------- 
                                           William M. Doran
                                           Director
                                           
                                           
                                           
Date   March 29, 1999                   By /s/ Henry H. Porter, Jr.
    -----------------------------          --------------------------------- 
                                           Henry H. Porter, Jr.
                                           Director
                                           
                                           
                                           
Date   March 29, 1999                   By /s/ Kathryn M. McCarthy
    -----------------------------          --------------------------------- 
                                           Kathryn M. McCarthy
                                           Director

                                                                              63

<PAGE>
 
                                 EXHIBIT INDEX
                                 -------------
                                        
The following is a list of exhibits filed as part of this annual report on Form
10-K.  For exhibits incorporated by reference, the location of the exhibit in
the previous filing is indicated in parentheses.

   3.1    Articles of Incorporation of the Registrant as amended on January 21,
          1983.  (Incorporated by reference to exhibit 3.1 to the Registrant's
          Annual Report on Form 10-K for the fiscal year ended December 31,
          1982.)
   3.1.2  Amendment to Articles of Incorporation of the Registrant, dated May
          21, 1992.  (Incorporated by reference to exhibit 3.1.2 to the
          Registrant's Annual Report on Form 10-K for the fiscal year ended
          December 31, 1992.)
   3.1.3  Amendment to Articles of Incorporation of the Registrant, dated May
          26, 1994.  (Incorporated by reference to exhibit 3.1.3 to the
          Registrant's Annual Report on Form 10-K for the fiscal year ended
          December 31, 1994.)
   3.1.4  Amendment to Articles of Incorporation of the Registrant, dated
          November 21, 1996.  (Incorporated by reference to exhibit 3.1.4 to the
          Registrant's Annual Report on Form 10-K for the fiscal year ended
          December 31, 1996.)
   3.2    By-Laws.  (Incorporated by reference to exhibit 3.2 to the
          Registrant's Annual Report on Form 10-K for the fiscal year ended
          December 31, 1983.)
   3.2.1  Amendment to By-Laws, dated December 19, 1988.  (Incorporated by
          reference to exhibit 3.2.1 to the Registrant's Annual Report on Form
          10-K for the fiscal year ended December 31, 1988.)
   3.2.2  Amendment to By-Laws, dated July 12, 1990.  (Incorporated by reference
          to exhibit 3.2.2 to the Registrant's Quarterly Report on Form 10-Q for
          the quarter ended June 30, 1990.)
   4.1    Form of Certificate for Shares of Common Stock.  (Incorporated by
          reference to exhibit 4.1 to the Registrant's Annual Report on Form 10-
          K for the fiscal year ended December 31, 1988.)
   4.2*   Rights Agreement dated December 10, 1998.  (Page 68)

          Note: Exhibits 10.1 through 10.10 constitute the management contracts
          and executive compensatory plans or arrangements in which certain of
          the directors and executive officers of the Registrant participate.

  10.1    Stock Option Plan, Amended, Restated and Renewed as of February 11,
          1997.  (Incorporated by reference to exhibit 99(a) to the Registrant's
          Registration Statement on Form S-8 (No. 333-63709) filed September 18,
          1998.)
  10.1.1  1997 Stock Option Plan. (Incorporated by reference to exhibit 99(b) to
          the Registrant's Registration Statement on Form S-8 (No. 333-63709)
          filed September 18, 1998.)
  10.1.2  1997 Option Share Deferral Plan. (Incorporated by reference to exhibit
          99(c) to the Registrant's Registration Statement on Form S-8 (No. 333-
          63709) filed September 18, 1998.)
  10.1.3  1998 Equity Compensation Plan. (Incorporated by reference to exhibit
          99(f) to the Registrant's Registration Statement on Form S-8 (No. 333-
          63709) filed September 18, 1998.)
  10.2    Employee Stock Ownership Plan. (Incorporated by reference to exhibit
          10.3 (b) to the Registrant's Annual Report on Form 10-K for the fiscal
          year ended December 31, 1985.)
  10.3    Employee Stock Purchase Plan, Amended and Restated as of May 8, 1991.
          (Incorporated by reference to exhibit 10.3 to the Registrant's Annual
          Report on Form 10-K for the fiscal year ended December 31, 1991.)
  10.3.1  Employee Stock Purchase Plan as Amended and Restated on October 15,
          1997.  (Incorporated by reference to exhibit 99(e) to the Registrant's
          Registration Statement on Form S-8 (No. 333-63709) filed September 18,
          1998.)
  10.4    SEI Capital Accumulation Plan. (Incorporated by reference to exhibit
          99(e) to the Registrant's Registration Statement on Form S-8 (No. 333-
          41343) filed December 2, 1997.)
  10.5    Stock Option Plan for Non-Employee Directors. (Incorporated by
          reference to exhibit 10.12 to the Registrant's Annual Report on Form
          10-K for the fiscal year ended December 31, 1988.)
  10.5.1  Amendment 1997-1 to the Stock Option Plan for Non-Employee Directors.
          (Incorporated by reference to exhibit 10.5.1 to the Registrant's
          Annual Report on Form 10-K for the fiscal year ended December 31,
          1997.)
  10.5.2  1997 Option Share Deferral Plan for Non-Employee Directors.
          (Incorporated by reference to exhibit 99(d) to the Registrant's
          Registration Statement on Form S-8 (No. 333-63709) filed September 18,
          1998.)

                                                                              64
<PAGE>
 
  10.6     Employment Agreement, dated May 25, 1979, between Alfred P. West, Jr.
           and the Registrant. (Incorporated by reference to exhibit 10.7 to the
           Registrant's Annual Report on Form 10-K for the fiscal year ended
           December 31, 1990.)
  10.7     Employment Agreement, dated January 21, 1987, between Gilbert L.
           Beebower and the Registrant. (Incorporated by reference to exhibit
           10.8 to the Registrant's Annual Report on Form 10-K for the fiscal
           year ended December 31, 1990.)
  10.8.1   Employment Agreement, dated July 1, 1987, between Richard B. Lieb and
           the Registrant. (Incorporated by reference to exhibit 10.9 to the
           Registrant's Annual Report on Form 10-K for the fiscal year ended
           December 31, 1990.)
  10.8.2   Stock Option Agreement, dated February 23, 1989, between Richard B.
           Lieb and a subsidiary of the Registrant, as amended. (Incorporated by
           reference to exhibit 10.8.2 to the Registrant's Annual Report on Form
           10-K for the fiscal year ended December 31, 1992.)
  10.9     Summary of Company Bonus Plan for Senior Management. (Incorporated by
           reference to exhibit 10.9 to the Registrant's Annual Report on Form
           10-K for the fiscal year ended December 31, 1993.)
  10.11    Directors and Officers Liability Insurance Policy. (Incorporated by
           reference to exhibit 10.9 to the Registrant's Registration Statement
           on Form S-8 (No.2-78133) filed June 25, 1982.)
  10.12    Lease Agreement, dated as of January 1, 1990, between The Canada Life
           Assurance Company and the Registrant. (Incorporated by reference to
           exhibit 10.11 to the Registrant's Annual Report on Form 10-K for the
           fiscal year ended December 31, 1990.)
  10.13    Lease Agreement, dated as of May 1, 1991, between Two North Riverside
           Plaza Joint Venture and the Registrant. (Incorporated by reference to
           exhibit 10.11 to the Registrant's Annual Report on Form 10-K for the
           fiscal year ended December 31, 1991.)
  10.14    Credit Agreement, dated May 31, 1992, between Provident National Bank
           and the Registrant, as amended. (Incorporated by reference to exhibit
           10.12 to the Registrant's Annual Report on Form 10-K for the fiscal
           year ended December 31, 1992.)
  10.14.1  Second Modification Agreement to the Credit Agreement, dated April
           19, 1993, between PNC Bank, National Association, successor by merger
           to Provident National Bank, and the Registrant. (Incorporated by
           reference to exhibit 10.14.1 to the Registrant's Annual Report on
           Form 10-K for the fiscal year ended December 31, 1993.)
  10.14.2  Third Modification Agreement to the Credit Agreement, dated May 31,
           1993, between PNC Bank, National Association, successor by merger to
           Provident National Bank, and the Registrant. (Incorporated by
           reference to exhibit 10.14.2 to the Registrant's Annual Report on
           Form 10-K for the fiscal year ended December 31, 1993.)
  10.14.3  Fourth Modification Agreement to the Credit Agreement, dated March
           14, 1994, between PNC Bank, National Association, successor by merger
           to Provident National Bank, and the Registrant. (Incorporated by
           reference to exhibit 10.14.3 to the Registrant's Annual Report on
           Form 10-K for the fiscal year ended December 31, 1994.)
  10.14.4  Fifth Modification Agreement to the Credit Agreement, dated May 31,
           1994, between PNC Bank, National Association, successor by merger to
           Provident National Bank, and the Registrant. (Incorporated by
           reference to exhibit 10.14.4 to the Registrant's Annual Report on
           Form 10-K for the fiscal year ended December 31, 1994.)
  10.14.5  Sixth Modification Agreement to the Credit Agreement, dated May 5,
           1995, between PNC Bank, National Association, successor by merger to
           Provident National Bank, and the Registrant. (Incorporated by
           reference to exhibit 10.14.5 to the Registrant's Annual Report on
           Form 10-K for the fiscal year ended December 31, 1995.) 
  10.14.6  Seventh Modification Agreement to the Credit Agreement, dated June
           15, 1995, between PNC Bank, National Association, successor by
           merger to Provident National Bank, and the Registrant.
           (Incorporated by reference to exhibit 10.14.6 to the Registrant's
           Annual Report on Form 10-K for the fiscal year ended December 31,
           1995.)
  10.14.7  Eighth Modification Agreement to the Credit Agreement, dated
           October 19, 1995, between PNC Bank, National Association,
           successor by merger to Provident National Bank, and the
           Registrant. (Incorporated by reference to exhibit 10.14.7 to the
           Registrant's Annual Report on Form 10-K for the fiscal year ended
           December 31, 1995.)
  10.14.8  Ninth Modification Agreement to the Credit Agreement, dated March
           31, 1996, between PNC Bank, National Association, successor by
           merger to Provident National Bank, and the Registrant.
           (Incorporated by reference to exhibit 10.14.8 to the Registrant's
           Annual Report on Form 10-K for the fiscal year ended December 31,
           1996.)

                                                                              65
<PAGE>
 
  10.14.9     Tenth Modification Agreement to the Credit Agreement, dated May
              31, 1996, between PNC Bank, National Association, successor by
              merger to Provident National Bank, and the Registrant.
              (Incorporated by reference to exhibit 10.14.9 to the Registrant's
              Annual Report on Form 10-K for the fiscal year ended December 31,
              1996.)
  10.14.10    Eleventh Modification Agreement to the Credit Agreement, dated
              October 1, 1996, between PNC Bank, National Association, successor
              by merger to Provident National Bank, and the Registrant.
              (Incorporated by reference to exhibit 10.14.10 to the Registrant's
              Annual Report on Form 10-K for the fiscal year ended December 31,
              1996.)
  10.14.11    Release and Modification Agreement to the Credit Agreement, dated
              February 20, 1997, between PNC Bank, National Association,
              successor by merger to Provident National Bank, and the
              Registrant. (Incorporated by reference to exhibit 10.14.11 to the
              Registrant's Annual Report on Form 10-K for the fiscal year ended
              December 31, 1996.)
  10.14.12    Thirteenth Modification Agreement to the Credit Agreement, dated
              May 30, 1997, between PNC Bank, National Association, successor by
              merger to Provident National Bank, and the Registrant.
              (Incorporated by reference to exhibit 10.14.12 to the Registrant's
              Annual Report on Form 10-K for the fiscal year ended December 31,
              1997.)
  10.14.13    Fourteenth Modification Agreement to the Credit Agreement, dated
              December 31, 1997, between PNC Bank, National Association,
              successor by merger to Provident National Bank, and the
              Registrant. (Incorporated by reference to exhibit 10.14.13 to the
              Registrant's Annual Report on Form 10-K for the fiscal year ended
              December 31, 1997.)
  10.14.14*   Fifteenth Modification Agreement to the Credit Agreement, dated
              March 31, 1998, between PNC Bank, National Association, successor
              by merger to Provident National Bank, and the Registrant. (Page
              111)
  10.14.15*   Sixteenth Modification Agreement to the Credit Agreement, dated
              May 29, 1998, between PNC Bank, National Association, successor by
              merger to Provident National Bank, and the Registrant. (Page 115)
  10.14.16*   Seventeenth Modification Agreement to the Credit Agreement, dated
              September 29, 1998, between PNC Bank, National Association,
              successor by merger to Provident National Bank, and the
              Registrant. (Page 119)
  10.15       Pledge Agreement, dated May 31, 1992, between Provident National
              Bank and the Registrant. (Incorporated by reference to exhibit
              10.13 to the Registrant's Annual Report on Form 10-K for the
              fiscal year ended December 31, 1992.)
  10.16       Master Lease Agreement, dated December 29, 1989, between Varilease
              Corporation and the Registrant, as amended. (Incorporated by
              reference to exhibit 10.14 to the Registrant's Annual Report on
              Form 10-K for the fiscal year ended December 31, 1992.)
  10.17       Note Purchase Agreement, dated as of February 24, 1997, with
              respect to the issuance by the Registrant of $20,000,000 7.20%
              Senior Notes, Series A, due February 24, 2007, and $15,000,000
              7.27% Senior Notes, Series B, due February 24, 2012. (Incorporated
              by reference to exhibit 10.17 to the Registrant's Annual Report on
              Form 10-K for the fiscal year ended December 31, 1996.)
  10.17.1*    First Amendment, dated December 15, 1998, to Note Purchase
              Agreement, dated February 24, 1997.  (Page 123)
  21*         Subsidiaries of the Registrant.  (Page 131)
  23*         Consent of Independent Public Accountants.  (Page 133)
  27*         Financial Data Schedule
  99*         Miscellaneous exhibits.  (Page 135)

* Filed herewith as an exhibit to this Form 10-K.

                                                                              66

<PAGE>
 
                                                                     EXHIBIT 4.2

================================================================================


                            SEI INVESTMENTS COMPANY

                                      and

                    AMERICAN STOCK TRANSFER & TRUST COMPANY

                                as Rights Agent



                               RIGHTS AGREEMENT

                         Dated as of December 10, 1998


================================================================================

                                                                              68
<PAGE>
 
                               TABLE OF CONTENTS

<TABLE> 
<CAPTION> 
Section                                                                                                      Page
- - -------                                                                                                      ----
<S>                                                                                                          <C> 
1.     Certain Definitions.................................................................................     2
                                                                                                                
2.     Appointment of Rights Agent.........................................................................     5
                                                                                                                
3.     Issue of Rights Certificates........................................................................     5
                                                                                                                
4.     Form of Rights Certificates.........................................................................     7
                                                                                                                
5.     Countersignature and Registration...................................................................     8
                                                                                                                
6.     Transfer, Split Up, Combination and Exchange of Rights Certificates; Mutilated,                          
       Destroyed, Lost or Stolen Rights Certificates.......................................................     8
                                                                                                                
7.     Exercise of Rights; Purchase Price; Expiration Date of Rights.......................................     9
                                                                                                            
8.     Cancellation and Destruction of Rights Certificates.................................................    11
                                                                                                               
9.     Reservation and Availability of Capital Stock; Registration of Securities...........................    11
                                                                                                               
10.    Capital Stock Record Date...........................................................................    13
                                                                                                               
11.    Adjustment of Purchase Price, Number and Kind of Shares or Number of Rights.........................    13
                                                                                                               
12.    Certificate of Adjusted Purchase Price or Number of Shares..........................................    23
                                                                                                               
13.    Consolidation, Merger or Sale or Transfer of Assets or Transfer of Assets or Earning Power..........    23
                                                                                                               
14.    Fractional Rights and Fractional Shares.............................................................    26
                                                                                                               
15.    Rights of Action....................................................................................    28
                                                                                                               
16.    Agreement of Rights Holders.........................................................................    28
                                                                                                               
17.    Rights Certificate Holder Not Deemed a Shareholder..................................................    29
                                                                                                               
18.    Concerning the Rights Agent.........................................................................    29
                                                                                                               
20.    Duties of Rights Agent..............................................................................    30
                                                                                                               
21.    Change of Rights Agent..............................................................................    32
                                                                                                               
22.    Issuance of New Rights Certificates.................................................................    33
                                                                                                               
23.    Redemption and Termination..........................................................................    34
</TABLE> 

                                                                              69
<PAGE>
 
<TABLE> 
<S>                                                                                                            <C> 
24.    Exchange............................................................................................    35
                                                                                                               
25.    Notice of Certain Events............................................................................    36
                                                                                                               
26.    Notices.............................................................................................    37
                                                                                                               
27.    Supplements and Amendments..........................................................................    37
                                                                                                               
28.    Successors..........................................................................................    38
                                                                                                               
30.    Benefits of this Agreement..........................................................................    39
                                                                                                               
31.    Severability........................................................................................    39
                                                                                                               
32.    Governing Law.......................................................................................    39
                                                                                                               
33.    Counterparts........................................................................................    40
                                                                                                               
34.    Descriptive Headings................................................................................    40
</TABLE> 


Exhibit A --   Resolution of the Board of Directors with respect to Series A
               Junior Participating Preferred Shares

Exhibit B --   Form of Rights Certificate

Exhibit C --   Form of Summary of Rights

                                                                              70
<PAGE>
 
                               RIGHTS AGREEMENT

          RIGHTS AGREEMENT, dated as of December 10, 1998 (the "Agreement"),
between SEI INVESTMENTS COMPANY, a Pennsylvania corporation (the "Company"), and
AMERICAN STOCK TRANSFER & TRUST COMPANY, a New York corporation (the "Rights
Agent").

                              W I T N E S S E T H

          WHEREAS, on December 10, 1998 (the "Rights Dividend Declaration
Date"), the Board of Directors of the Company authorized and declared a dividend
distribution of one Right for each Common Share (as hereinafter defined) of the
Company outstanding at the close of business on December 19, 1998 (the "Record
Date") (which for these purposes shall include all Common Shares presently
entitled to receive dividends) and has authorized the issuance of one Right (as
such number may hereafter be adjusted pursuant to the provisions of Section
11(p) hereof) for each Common Share of the Company issued between the Record
Date (whether originally issued or delivered from the Company's treasury) and
the Distribution Date (as hereinafter defined), each Right initially
representing the right to purchase one two-thousandths of a Preferred Share (as
hereinafter defined) of the Company having the rights, powers and preferences
set forth in the form of the Resolution of the Board of Directors attached
hereto as Exhibit A, upon the terms and subject to the conditions hereinafter
set forth (the "Rights"); and

          WHEREAS, the Rights will be held by the Rights Agent under this
Agreement as trustee for the shareholders of the Company until the Distribution
Date; and

          WHEREAS, the Board of Directors of the Company has considered whether
approval of this Agreement and the distribution of the Rights is in the best
interests of the Company and all other pertinent factors; and

          WHEREAS, the Board of Directors of the Company has concluded that
approval of this Agreement and the distribution of the Rights is in the best
interests of the Company because the existence of the Rights will help (i)
reduce the risk of coercive two-tiered, front-end loaded or partial offers that
may not offer fair value to all shareholders, (ii) mitigate against market
accumulators who through open market and/or private purchases may achieve a
position of substantial influence or control without paying to selling or
remaining shareholders a fair control premium, (iii) deter market accumulators
who are simply interested in putting the Company into "play," (iv) restrict
self-dealing by a substantial shareholder, and (v) preserve the Board of
Directors' bargaining power and flexibility to deal with third-party acquirers
and to otherwise seek to maximize values for all shareholders.

          NOW, THEREFORE, in consideration of the premises and the mutual
agreements herein set forth, and intending to be legally bound hereby, the
parties hereby agree as follows:

          Section 1.  Certain Definitions.  For purposes of this Agreement, the
                      -------------------                                      
following terms have the meanings indicated:

               (a)    "Acquiring Person" shall mean any Person, who or which,
together with all Affiliates and Associates of such Person, shall be the
Beneficial Owner of 20% or more of the Common Shares then outstanding, but shall
not include (i) Alfred P. West, Jr., (ii) the Company, (iii) any Subsidiary of
the Company, (iv) any employee benefit plan of the Company or of any Subsidiary
of the Company or (v) any Person or entity organized, appointed or established
by the Company for or pursuant to the terms of any such plan. A transfer of
Common Shares by Alfred P. West, Jr. or his spouse, directly or indirectly, to a
member of his immediate family shall not alone cause such immediate family
member to become an Acquiring Person, but any subsequent acquisitions which
aggregate to 1% or more of the total outstanding Common Shares by such immediate
family member, other than from Alfred P. West, Jr. or his spouse, will cause
such immediate family member to become an Acquiring Person if after such
acquisitions such immediate family member, together with all Affiliates and
Associates, shall be the Beneficial Owner of 20% or more of the Common Shares
then outstanding. Notwithstanding the foregoing, if a majority of the Continuing
Directors then in office determines in good faith that a Person who would
otherwise be an "Acquiring Person", as defined pursuant to the foregoing
provisions of this paragraph (a), has become such inadvertently, and such Person
divests as promptly as practicable a sufficient number of Common Shares so that
such Person would no longer be an Acquiring Person, as defined pursuant to the
foregoing provisions of this paragraph (a), then such Person shall not be deemed
to be an "Acquiring Person" for purposes of this Agreement.

                                                                              71
<PAGE>
 
               (b)  "Affiliate" and "Associate" shall have the respective
meanings ascribed to such terms in Rule 12b-2 of the General Rules and
Regulations under the Securities Exchange Act of 1934, as amended and in effect
on the date hereof (the "Exchange Act").

               (c)  A Person shall be deemed the "Beneficial owner" of, and
shall be deemed to "beneficially own," any securities:

               (i)    that such Person or any of such Person's Affiliates or
     Associates, directly or indirectly, has the right to acquire (whether such
     right is exercisable immediately or only after the passage of time)
     pursuant to any agreement, arrangement or understanding (whether or not in
     writing) or upon the exercise of conversion rights, exchange rights,
     rights, warrants or options, or otherwise; provided, however, that a Person
     shall not be deemed the "Beneficial Owner" of, or to "beneficially own,"
     (A) securities tendered pursuant to a tender or exchange offer made by such
     Person or any of such Person's Affiliates or Associates until such tendered
     securities are accepted for payment, purchase or exchange, or (B)
     securities issuable upon exercise of Rights at any time prior to the
     occurrence of a Triggering Event, or (C) securities issuable upon exercise
     of Rights from and after the occurrence of a Triggering Event which Rights
     were acquired by such Person or any of such Person's Affiliates or
     Associates prior to the Distribution Date or pursuant to Section 3(a) or
     Section 22 hereof (the "Original Rights") or pursuant to Section 11(i)
     hereof in connection with an adjustment made with respect to any original
     Rights;

               (ii)   that such Person or any of such Person's Affiliates or
     Associates, directly or indirectly, has the right to vote or dispose of or
     has "beneficial ownership" of (as determined pursuant to Rule 13d-3 of the
     General Rules and Regulations under the Exchange Act), including without
     limitation pursuant to any agreement, arrangement or understanding, whether
     or not in writing; provided, however, that a Person shall not be deemed the
     "Beneficial Owner" of, or to "beneficially own," any security under this
     subparagraph (ii) as a result of an oral or written agreement, arrangement
     or understanding to vote such security if such agreement, arrangement or
     understanding: (A) arises solely from a revocable proxy given in response
     to a public proxy or consent solicitation made pursuant to, and in
     accordance with, the applicable provisions of the General Rules and
     Regulations under the Exchange Act, and (B) is not also then reportable by
     such Person on Schedule 13D under the Exchange Act (or any comparable or
     successor report); or

               (iii)  that are beneficially owned, directly or indirectly, by
     any other Person (or any Affiliate or Associate thereof) with which such
     Person (or any of such Person's Affiliates or Associates) has any
     agreement, arrangement or understanding (whether or not in writing), for
     the purpose of acquiring, holding, voting (except pursuant to a revocable
     proxy as described in the proviso to subparagraph (ii) of this paragraph
     (c)) or disposing of any voting securities of the Company,

provided, however, that nothing in this paragraph (c) shall cause a person
- - --------                                                                  
engaged in business as an underwriter of securities to be the "Beneficial Owner"
of, or to "beneficially own," any securities acquired through such Person's
participation in good faith in a firm commitment  underwriting until the
expiration of forty days after the date of such acquisition.

               (d)    "Business Day" shall mean any day other than a Saturday,
Sunday or a day on which banking institutions in the State of New Jersey or the
Commonwealth of Pennsylvania are authorized or obligated by law or executive
order to close.

               (e)    "Close of business" on any given date shall mean 5:00
P.M., Philadelphia time, on such date; provided, however, that if such date is
not a Business Day it shall mean 5:00 P.M., Philadelphia time, on the next
succeeding Business Day.

               (f)    "Common Share" shall mean, when used with references to
the Company, a share of common stock, par value $.01 per share, of the Company
and, to the extent that there are not a sufficient number of Common Shares
authorized to permit the full exercise of the Rights, shares of any other class
or series of the Company designated for such purpose containing terms
substantially similar to the terms of the Common Shares, except that "Common
Share" when used with reference to any Person other than the Company shall mean
the shares of common stock of such Person with the greatest voting power, or the
equity securities or other equity interest having power to control or direct the
management, of such Person.

                                                                              72
<PAGE>
 
               (g)    "Continuing Director" shall mean (i) any member of the
Board of Directors of the Company, while such Person is a member of such Board,
who is not an Acquiring Person, or an Affiliate or Associate of an Acquiring
Person, or a representative of an Acquiring Person or of any such Affiliate or
Associate, and was a member of such Board prior to the date of this Agreement,
or (ii) any Person who subsequently becomes a member of the Board, while such
Person is a member of such Board, who is not an Acquiring Person, or an
Affiliate or Associate of an Acquiring Person, or a representative of an
Acquiring Person or of any such Affiliate or Associate, if such Person's
nomination for election or election to the Board is recommended or approved by a
majority of the Continuing Directors.

               (h)    "Distribution Date" shall have the meaning set forth in
Section 3 hereof.

               (i)    "Expiration Date" shall have the meaning set forth in
Section 7(a) hereof.

               (j)    "Person" shall mean any individual, firm, corporation,
partnership, limited liability company or other entity.

               (k)    "Preferred Share" shall mean a share of Series A Junior
Participating Preferred Shares, par value $.05 per share, of the Company and, to
the extent that there are not a sufficient number of shares of Series A Junior
Participating Preferred Shares authorized to permit the full exercise of the
Rights, shares of any other series of Series Preferred Stock of the Company
designated for such purpose containing terms substantially similar to the terms
of the Series A Junior Participating Preferred Shares.

               (l)    "Preferred Share Fraction" shall mean one two-thousandths
of a Preferred Share.

               (m)    "Section 11(a)(ii) Event" shall mean any event described
in Section 11(a)(ii) (A), (B) or (C) hereof.

               (n)    "Section 13 Event" shall mean any event described in
clauses (x), (y) or (z) of Section 13(a) hereof.

               (o)    "Stock Acquisition Date" shall mean the first date of
public announcement (which, for purposes of this definition, shall include,
without limitation, a report filed pursuant to Section 13(d) under the Exchange
Act) by the Company or an Acquiring Person that an Acquiring Person has become
such.

               (p)    "Subsidiary" shall have the meaning ascribed to such term
in Rule 12b-2 of the General Rules and Regulations under the Exchange Act.

               (q)    "Trading Day" shall have the meaning set forth in Section
11(d)(i) hereof.

               (r)    "Triggering Event" shall mean any Section 11(a)(ii) Event
or any Section 13 Event.

               Unless otherwise specified, where reference is made in this
Agreement to sections of, and the General Rules and Regulations under, the
Exchange Act, such reference shall mean such sections and rules as amended from
time to time and any successor provisions thereto.

          Section 2.  Appointment of Rights Agent.
                      --------------------------- 

               The Company hereby appoints the Rights Agent to act as agent for
the Company in accordance with the terms and conditions hereof, and the Rights
Agent hereby accepts such appointment. The Company may from time to time appoint
such Co-Rights Agents as it may deem necessary or desirable.

                                                                              73
<PAGE>
 
          Section 3.  Issue of Rights Certificates.
                      ---------------------------- 

               (a)    Until the earlier of (i) the Close of Business on the
tenth Business Day after a Stock Acquisition Date involving an Acquiring Person
that has become such in a transaction as to which the Board of Directors has not
made the determination referred to in Section 11(a)(ii)(B) hereof, or (ii)
within ten (10) Business Days (or such later date as may be determined by action
of the Board of Directors prior to such time any person becomes an Acquiring
Person) after the date that a tender or exchange offer by any Person (other than
Alfred P. West, Jr., the Company, any Subsidiary of the Company, any employee
benefit plan of the Company or of any Subsidiary of the Company, or any Person
or entity organized, appointed or established by the Company for or pursuant to
the terms of any such plan) is first published or sent or given within the
meaning of Rule 14d-2(a) of the General Rules and Regulations under, the
Exchange Act, if upon consummation thereof, such Person would be the Beneficial
Owner of 20% or more of the Common Shares then outstanding (the earlier of (i)
and (ii) being herein referred to as the "Distribution Date"), (x) beneficial
interests in the Rights will be evidenced (subject to the provisions of
paragraph (b) of this Section 3) by the certificates for the Common Shares
registered in the names of the holders of the Common Shares (which certificates
for Common Shares shall be deemed also to be certificates for beneficial
interests in the Rights) and not by separate certificates, and (y) the Rights
and beneficial interests therein will be transferable only in connection with
the transfer of the underlying Common Shares (including a transfer to the
Company). The Company must promptly notify the Rights Agent of Such Distribution
Date and request that its transfer agent provide the Rights Agent with a list of
the record holders of the Company's Common Shares as of the close of business on
the Distribution Date. As soon as practicable after the Rights Agent receives
such notice and list, the Rights Agent will send by first-class, postage prepaid
mail, to each record holder of the Common Shares as of the close of business on
the Distribution Date, at the address of such holder shown on the records of the
Company, one or more rights certificates, in substantially the form of Exhibit B
hereto (the "Rights Certificates"), evidencing one Right for each Common Share
so held, subject to adjustment as provided herein. In the event that an
adjustment in the number of Rights per Common Share has been made pursuant to
Section 11(p) hereof, at the time of distribution of the Rights Certificates,
the Company shall make the necessary and appropriate rounding adjustments (in
accordance with Section 14(a) hereof) so that Rights Certificates representing
only whole numbers of Rights are distributed and cash is paid in lieu of any
fractional Rights. As of and after the Distribution Date, the Rights will be
evidenced solely by such Rights Certificates.

               (b)    As promptly as practicable following the Record Date, the
Company will send a copy of a Summary of Rights, in substantially the Form of
Exhibit C hereto (the "Summary of Rights"), by first-class, postage prepaid
mail, to each holder of the Common Shares as of the close of business on the
Record Date, at the address of such holder shown on the records of the Company.
With respect to certificates for the Common Shares outstanding as of the Record
Date, until the Distribution Date, the registered holders of the Common Shares
shall also be the registered holders of the beneficial interests in the
associated Rights. Until the earlier of the Distribution Date or the Expiration
Date (as such term is defined in Section 7 hereof), the transfer of any
certificates representing Common Shares in respect of which Rights have been
issued shall also constitute the transfer of the Rights associated with such
Common Shares. Certificates issued after the Record Date upon the transfer of
Common Shares outstanding on the Record Date shall bear the legend set forth in
subsection (c).

               (c)    Except as provided in Section 22 hereof, Rights shall be
issued in respect of all Common Shares that are issued (whether originally
issued or delivered from the Company's treasury) after the Record Date but prior
to the earlier of the Distribution Date or the Expiration Date. Certificates
representing such Common Shares shall also be deemed to be certificates for
beneficial interests in the associated Rights, and shall bear the following
legend:

               "This certificate also evidences a beneficial interest in and
     entitles the holder hereof to certain Rights as set forth in the Rights
     Agreement between SEI Investments Company (the "Company") and American
     Stock Transfer & Trust Company (the "Rights Agent") dated as of December
     10, 1998 (the "Rights Agreement"), and as the same may be amended from time
     to time, the terms of which are hereby incorporated herein by reference and
     a copy of which is on file at the principal offices of the Company. Under
     certain circumstances, as set forth in the Rights Agreement, such Rights
     will, be evidenced by separate certificates and beneficial interests
     therein will no longer be evidenced by this certificate.  The Company will
     mail to the holder of this certificate a copy of the Rights Agreement, as
     in effect on the date of mailing, without charge promptly after receipt of
     a written request therefor.  Under certain circumstances set forth in the
     Rights Agreement, Rights issued to, or held by any Person who is, was or
     becomes an Acquiring Person or any Affiliate or Associate thereof (as such
     terms are defined in the Rights Agreement), whether currently held by or on
     behalf of such Person or by any subsequent holder, may become null and
     void."

                                                                              74
<PAGE>
 
With respect to such certificates containing the foregoing legend, until the
earlier of (i) the Distribution Date or (ii) the Expiration Date, beneficial
interests in the Rights associated with the Common Shares represented by such
certificates shall be evidenced by such certificates alone and registered
holders of Common Shares shall also be the registered holders of beneficial
interests in the associated Rights, and the transfer of any of such certificates
shall also constitute the transfer of beneficial interests in the Rights
associated with the Common Shares represented by such certificates.

          Section 4.  Form of Rights Certificates.
                      --------------------------- 

               (a)    The Rights Certificates (and the forms of election to
purchase and of assignment to be printed on the reverse thereof) shall each be
substantially in the form set forth in Exhibit B hereto and may have such marks
of identification or designation and such legends, summaries or endorsements
printed thereon as the Company may deem appropriate (which do not affect the
duties or responsibilities of the Rights Agent) and as are not inconsistent with
the provisions of this Agreement, or as may be required to comply with any
applicable law or with any rule or regulation made pursuant thereto or with any
rule or regulation of any stock exchange or the Nasdaq Stock Market on which the
Rights may from time to time be listed, or to conform to usage. Subject to the
provisions of Section 11 and Section 22 hereof, the Rights Certificates,
whenever distributed, shall entitle the holders thereof to purchase such number
of Preferred Share Fractions as shall be set forth therein at the price set
forth therein (such exercise price per Preferred Share Fraction, the "Purchase
Price"), but the amount and type of securities purchasable upon the exercise of
each Right and the Purchase Price thereof shall be subject to adjustment as
provided herein.

               (b)    Any Rights Certificate issued pursuant to Section 3(a) or
Section 22 hereof that represents Rights that the Company knows are beneficially
owned by: (i) an Acquiring Person or any Associate or Affiliate of an Acquiring
Person, (ii) a transferee of an Acquiring Person (or of any such Associate or
Affiliate) who becomes a transferee after the Acquiring Person becomes such, or
(iii) a transferee of an Acquiring Person (or of any such Associate or
Affiliate) who becomes a transferee prior to or concurrently with the Acquiring
Person becoming such and receives such Rights pursuant to either (A) a transfer
(whether or not for consideration from the Acquiring Person to holders of equity
interests in such Acquiring Person or to any Person with whom such Acquiring
Person has any continuing oral or written plan, agreement, arrangement or
understanding regarding the transferred Rights or (B) a transfer that the Board
of Directors of the Company has determined is part of an oral or written plan,
agreement, arrangement or understanding that has as a primary purpose or effect
avoidance of Section 7(e) hereof, and provided that the Company shall have
notified the Rights Agent that this Section 4(b) applies, any Rights Certificate
issued pursuant to Section 6 or Section 11 hereof upon transfer, exchange,
replacement or adjustment of any other Rights Certificate referred to in this
sentence, shall contain (to the extent feasible) the following legend:

     "The Rights represented by this Rights Certificate are or were beneficially
     owned by a Person who was or became an Acquiring Person or an Affiliate or
     Associate of an Acquiring Person (as such terms are defined in the Rights
     Agreement).  Accordingly, this Rights Certificate and the Rights
     represented hereby may become null and void in the circumstances specified
     in Section 7(e) of such Agreement."

          Section 5.  Countersignature and Registration.
                      --------------------------------- 

               (a)    The Rights Certificates shall be executed on behalf of the
Company by its Chairman of the Board, its President or any Vice President,
either manually or by facsimile signature, and shall have affixed thereto the
Company's seal or a facsimile thereof which shall be attested by the Secretary
or an Assistant Secretary of the Company, either manually or by facsimile
signature. The Rights Certificates shall be manually countersigned by the Rights
Agent and shall not be valid for any purpose unless so countersigned. In case
any officer of the Company who shall have signed any of the Rights Certificates
shall cease to be such officer of the Company before countersignature by the
Rights Agent and issuance and delivery by the Company, such Rights Certificates,
nevertheless, may be countersigned by the Rights Agent and issued and delivered
by the Company with the same force and effect as though the Person who signed
such Rights Certificates had not ceased to be such officer of the Company, and
any Rights Certificates may be signed on behalf of the Company by any Person
who, at the actual date of the execution of such Rights Certificate, shall be a
proper officer of the Company to sign such Rights Certificate, although at the
date of the execution of this Agreement any such Person was not such an officer.

                                                                              75
<PAGE>
 
               (b)    Following the Distribution Date and upon receipt by the
Rights Agent of the notice and list of recordholders of the Rights referred to
in Section 3(a), the Rights Agent will keep or cause to be kept, at its office
or offices designated pursuant to Section 25 hereof, books for registration and
transfer of the Rights Certificates issued hereunder. Such books shall show the
names and addresses of the respective holders of the Rights Certificates, the
number of Rights evidenced on its face by each of the Rights Certificates, the
Certificate number and the date of each of the Rights Certificates.

          Section 6.  Transfer, Split Up, Combination and Exchange of Rights
                      ------------------------------------------------------
Certificates; Mutilated, Destroyed, Lost or Stolen Rights Certificates.
- - ---------------------------------------------------------------------- 

               (a)    Subject to the provisions of Section 4(b), Section 7(e)
and Section 14 hereof, at any time after the Close of Business on the
Distribution Date, and at or prior to the Close of Business on the Expiration
Date, any Rights Certificate or Certificates may be transferred, split up,
combined or exchanged for another Rights Certificate or Certificates, entitling
the registered holder to purchase a like number of Preferred Share Fractions
(or, following a Triggering Event, Common Shares or other securities, cash or
other assets, as the case may be, as the Rights Certificate or Certificates
surrendered then entitled such holder or former holder in the case of a
transfer) to purchase. Any registered holder desiring to transfer, split up,
combine or exchange any Rights Certificate or Certificates shall make such
request in writing delivered to the Rights Agent, and shall surrender the Rights
Certificate or Certificates to be transferred, split up, combined or exchanged
at the office of the Rights Agent designated for such purpose. Neither the
Rights Agent nor the Company shall be obligated to take any action whatsoever
with respect to the transfer of any such surrendered Rights Certificate or
Certificates until the registered holder shall have completed and signed the
certificate contained in the form of assignment on the reverse side of such
Rights Certificate and shall have provided such additional evidence of the
identity of the Beneficial Owner (or former Beneficial Owner) or Affiliates or
Associates thereof as the Company or the Rights Agent shall reasonably request.
Thereupon the Rights Agent shall, subject to Section 4(b), Section 7(e) and
Section 14 hereof, countersign and deliver to the Person entitled thereto a
Rights Certificate or Rights Certificates, as the case may be, as so requested.
The Rights Agent shall not be obligated to process the transaction until it has
received evidence that all taxes and charges arising from the transaction have
been paid. The Company may require payment of a sum sufficient to cover any tax
or governmental charge that may be imposed in connection with any transfer,
split up, combination or exchange of Rights Certificates.

               (b)    Upon receipt by the Company and the Rights Agent of
evidence reasonably satisfactory to them of the loss, theft, destruction or
mutilation of a Rights Certificate, and, in case of loss, theft or destruction,
of indemnity or security satisfactory to them, and reimbursement to the Company
and the Rights Agent of all reasonable expenses incidental thereto, and upon
surrender to the Rights Agent and cancellation of the Rights Certificate if
mutilated, the Company will execute and deliver a new Rights Certificate of like
tenor to the Rights Agent for countersignature and delivery to the registered
owner in lieu of the Rights Certificate so lost, stolen, destroyed or mutilated.

          Section 7.  Exercise of Rights; Purchase Price; Expiration Date of
                      ------------------------------------------------------
Rights.
- - ------ 

               (a)    Subject to subsection (e), the registered holder of any
Rights Certificate may exercise the Rights evidenced thereby (except as
otherwise provided herein including, without limitation, the restrictions on
exercisability set forth in Section 9(c), Section 11(a)(iii) and Section 23(a)
hereof) in whole or in part at any time after the Distribution Date upon
surrender of the Rights Certificate, with the form of election to purchase and
the certificate on the reverse side thereof duly executed, to the Rights Agent
at the office of the Rights Agent designated for such purpose, together with
payment of the aggregate Purchase Price (except as provided in Section 11(q)
hereof) with respect to the total number of Preferred Share Fractions (or Common
Shares, other securities, cash or other assets, as the case may be) as to which
such surrendered Rights are then exercisable (except as provided in Section
11(q) hereof), at or prior to the earliest of (i) the Close of Business on
December 19, 2008 (the "Final Expiration Date"), (ii) the consummation of a
transaction contemplated by Section 13(d) hereof, or (iii) the time at which the
Rights are redeemed or terminated as provided in Section 23 hereof (the earliest
of (i), (ii) and (iii) being herein referred to as the "Expiration Date").

               (b)    The Purchase Price for each Preferred Share Fraction
pursuant to the exercise of a Right shall initially be $500, and shall be
subject to adjustment from time to time as provided in Sections 11 and 13(a)
hereof and shall be payable in accordance with subsection (c).

                                                                              76
<PAGE>
 
               (c)    Upon receipt of a Rights Certificate representing
exercisable Rights, with the form of election to purchase and the certificate
duly executed, accompanied by payment, with respect to each Right so exercised,
of the Purchase Price per Preferred Share Fraction (or Common Shares, other
securities, cash or other assets, as the case may be) to be purchased as set
forth below and an amount equal to any applicable tax or governmental charge,
the Rights Agent shall, subject to Section 20(k) and Section 14(b) hereof,
thereupon promptly (i) (A) requisition from any transfer agent of the Preferred
Shares (or make available, if the Rights Agent is the transfer agent for the
Common Shares) certificates for the total number of Preferred Shares to be
purchased and the Company hereby irrevocably authorizes its transfer agent to
comply with all such requests, or (B) if the Company shall have elected to
deposit some or all of the total number of Preferred Shares issuable upon
exercise of the Rights hereunder with a depositary agent, requisition from the
depositary agent depositary receipts representing such number of Preferred Share
Fractions as are to be purchased (in which case certificates for the Preferred
Shares represented by such receipts shall be deposited by the transfer agent
with the depositary agent) and the Company will direct the depositary agent to
comply with such request, (ii) requisition from the Company the amount of cash,
if any, to be paid in lieu of fractional shares in accordance with Section 14
hereof, (iii) after receipt of such certificates or depositary receipts, cause
the same to be delivered to or upon the order of the registered holder of such
Rights Certificate, registered in such name or names as may be designated by
such holder, and (iv) after receipt thereof, deliver such cash, if any, to or
upon the order of the registered holder of such Rights Certificate. The payment
of the Purchase Price (as such amount may be reduced pursuant to Section
11(a)(iii) hereof) may be made, at the election of the holder of the Rights
Certificate, (x) in cash or by certified bank check or money order payable to
the order of the Company, or (y) by delivery of Rights if and to the extent
authorized by Section 11(q) hereof. In the event that the Company is obligated
to issue other securities of the Company (including Common Shares) pay cash
and/or distribute other property pursuant to Section 11(a) hereof, the Company
will make all arrangements necessary so that such other securities, cash and/or
other property are available for distribution by the Rights Agent, if and when
necessary to comply with this Agreement.

               (d)    In case the registered holder of any Rights Certificate
shall exercise less than all the Rights evidenced thereby, a new Rights
Certificate evidencing Rights equivalent to the Rights remaining unexercised
shall be issued by the Rights Agent and delivered to, or upon the order of, the
registered holder of such Rights Certificate, registered in such name or names
as may be designated by such holder, subject to the provisions of Section 6 and
Section 14 hereof.

               (e)    Notwithstanding anything in this Agreement to the
contrary, from and after the first occurrence of a Section 11(a)(ii) Event, any
Rights beneficially owned by (i) an Acquiring Person or an Associate or
Affiliate of an Acquiring Person, (ii) a transferee of an Acquiring Person (or
of any such Associate or Affiliate) who becomes a transferee after the Acquiring
Person becomes such, or (iii) a transferee of an Acquiring Person (or of any
such Associate or Affiliate) who becomes a transferee prior to or concurrently
with the Acquiring Person becoming such and receives such Rights pursuant to
either (A) a transfer (whether or not for consideration) from the Acquiring
Person to holders of equity interests in such Acquiring Person or to any Person
with whom the Acquiring Person has any continuing oral or written plan,
agreement, arrangement or understanding regarding the transferred Rights or (B)
a transfer which the Board of Directors of the Company has determined is part of
an oral or written plan, agreement, arrangement or understanding which has as a
primary purpose or effect the avoidance of this Section 7(e), shall become null
and void without any further action and no holder of such Rights shall have any
rights whatsoever with respect to such Rights, whether under any provision of
this Agreement or otherwise; provided, however, that the Rights held by an
Acquiring Person, an Affiliate or Associate of an Acquiring Person or the
transferees of such persons referred to above shall not be voided unless the
Acquiring Person in question or an Affiliate or Associate of such Acquiring
Person shall be involved in the transaction giving rise to the Section 11(a)(ii)
Event. The Company shall notify the Rights Agent when this Section 7(e) applies
and shall use all reasonable efforts to insure that the provisions of this
Section 7(e) and Section 4(b) hereof are complied with, but neither the Company
nor the Rights Agent shall have any liability to any holder of Rights
Certificates or other Person as a result of the Company's failure to make any
determinations with respect to an Acquiring Person or its Affiliates, Associates
or transferees hereunder.

               (f)    Notwithstanding anything in this Agreement to the
contrary, neither the Rights Agent nor the Company shall be obligated to
undertake any action with respect to a registered holder upon the occurrence of
any purported exercise as set forth in this Section 7 unless such registered
holder shall have (i) properly completed and signed the certificate contained in
the form of election to purchase set forth on the reverse side of the Rights
Certificate surrendered for such exercise, and (ii) provided such additional
evidence of the identity of the Beneficial Owner (or former Beneficial Owner) or
Affiliates or Associates thereof as the Company or the Rights Agent shall
reasonably request.

                                                                              77
<PAGE>
 
          Section 8.  Cancellation and Destruction of Rights Certificates.  All
                      ---------------------------------------------------      
Rights Certificates surrendered for the purpose of exercise, transfer, split up,
combination or exchange shall, if surrendered to the Company or any of its
agents, be delivered to the Rights Agent for cancellation or in canceled form,
or, if surrendered to the Rights Agent, shall be canceled by it, and no Rights
Certificates shall be issued in lieu thereof except as expressly permitted by
any of the provisions of this Agreement.  The Company shall deliver to the
Rights Agent for cancellation and retirement, and the Rights Agent shall so
cancel and retire, any other Rights Certificate purchased or acquired by the
Company otherwise than upon the exercise thereof.  The Rights Agent shall
deliver all canceled Rights Certificates to the Company, or shall, at the
written request of the Company, destroy such canceled Rights Certificates, and
in such case shall deliver a certificate of destruction thereof to the Company.

          Section 9.  Reservation and Availability of Capital Stock;
                      ----------------------------------------------
Registration of Securities.
- - -------------------------- 

               (a)    The Company covenants and agrees that it will cause to be
reserved and kept available for issuance upon the exercise of outstanding Rights
as many of its authorized and unissued Preferred Shares (and, following the
occurrence of a Triggering Event, out of its authorized and unissued or treasury
Common Shares and/or other securities) or out of its authorized and issued
shares held in its treasury, which together, shall at all times after the
Distribution Date be sufficient to permit the exercise in full of all
outstanding Rights.

               (b)    So long as the Preferred Shares (and, following the
occurrence of a Triggering Event, Common Shares or other securities) issuable
and deliverable upon the exercise of the Rights may be listed on any stock
exchange, or quoted on the Nasdaq Stock Market, the Company shall use its best
efforts to cause, from and after such time as the Rights become exercisable, all
shares and other securities reserved for such issuance to be listed on such
exchange or market upon official notice of issuance upon such exercise.

               (c)    The Company shall use its best efforts to (i) file, as
soon as practicable following the earliest date after the first occurrence of a
Section 11(a)(ii) Event on which the consideration to be delivered by the
Company upon exercise of the Rights has been determined in accordance with
Section 11(a)(iii) hereof, or as soon as is required by law following the
Distribution Date, as the case may be, a registration statement or statements
under the Securities Act of 1933, as amended (the "Act"), with respect to the
securities purchasable upon exercise of the Rights on an appropriate form or
forms, (ii) cause such registration statement or statements to become effective
as soon as practicable after such filing, and (iii) cause such registration
statement or statements to remain effective (with a prospectus at all times
meeting the requirements of the Act) until the earlier of (A) the date as of
which the Rights are no longer exercisable for such securities, and (B) the
Expiration Date. The Company will also take such action as may be appropriate
under, or to ensure compliance with, the securities or "blue sky" laws of the
various states in connection with the exercisability of the Rights. The Company
may temporarily suspend, for a period of time not to exceed ninety (90) days
after the date set forth in clause (i) of the first sentence of this subsection
(c), the exercisability of the Rights in order to prepare and file such
registration statement and permit it to become effective. Upon any such
suspension, the Company shall issue a public announcement stating that the
exercisability of the Rights has been temporarily suspended, as well as a public
announcement at such time as the suspension is no longer in effect. In addition,
if the Company shall determine that a registration statement is required
following the Distribution Date, the Company may, by issuing a public
announcement, temporarily suspend the exercisability of the Rights until such
time as a registration statement has been declared effective. The Company shall
notify the Rights Agent whenever it makes a public announcement pursuant to this
subsection (c) and give the Rights Agent a copy of the announcement.
Notwithstanding any provision of this Agreement to the contrary, the Rights
shall not be exercisable in any jurisdiction unless the requisite qualification
in such jurisdiction shall have been obtained, nor shall the Rights be
exercisable if the exercise thereof shall not be permitted under applicable law
or a registration statement shall not have been declared effective.

               (d)    The Company covenants and agrees that it will take all
such action as may be necessary to ensure that all Preferred Shares (and,
following a Triggering Event, Common Shares or other securities) delivered upon
exercise of Rights shall, at the time of delivery of the certificates for such
shares or other securities (subject to payment of the Purchase Price), be duly
and validly authorized and issued and, with respect to Preferred Shares, Common
Shares or other shares of capital stock, fully paid and nonassessable.

                                                                              78
<PAGE>
 
               (e)    The Company further covenants and agrees that it will pay
when due and payable any and all taxes and governmental charges that may be
payable in respect of the issuance or delivery of the Rights Certificates and of
any certificates for a number of Preferred Share Fractions (or Common Shares or
other securities, as the case may be) upon the exercise of Rights. The Company
shall not, however, be required to pay any transfer tax that may be payable in
respect of any transfer or delivery of Rights Certificates to a Person other
than, or the issuance or delivery of a number of Preferred Share Fractions (or
Common Shares or other securities, as the case may be) in respect of a name
other than that of the registered holder of the Rights Certificates evidencing
Rights surrendered for exercise or to issue or deliver any certificates for a
number of Preferred Share Fractions (or Common Shares or other securities, as
the case may be) in a name other than that of the registered holder upon the
exercise of any Rights until such tax shall have been paid (any such tax being
payable by the holder of such Rights Certificate at the time of surrender or
until it has been established to the Company's satisfaction that no such tax is
due.

          Section 10  Capital Stock Record Date.  Each Person in whose name any
                      -------------------------                                
certificate for a number of Preferred Share Fractions (or Common Shares or other
securities, as the case may be) is issued upon the exercise of Rights shall for
all purposes be deemed to have become the holder of record of such Preferred
Share Fractions (or Common Shares or other securities, as the case may be)
represented thereby on, and such certificate shall be dated, the date upon which
the Rights Certificate evidencing such Rights was duly surrendered and payment
of the Purchase Price (and all applicable taxes and governmental charges) was
made; provided, however, that if the date of such surrender and payment is a
date upon which the applicable transfer books of the Company are closed, such
Person shall be deemed to have become the record holder of such shares
(fractional or otherwise) on, and such certificate shall be dated, the next
succeeding Business Day on which the applicable transfer books of the Company
are open.  Prior to the exercise of the Rights evidenced thereby, the holder of
a Rights Certificate shall not be entitled to any rights of a shareholder of the
Company with respect to shares for which the Rights shall be exercisable,
including, without limitation, the right to vote, to receive dividends or other
distributions or to exercise any preemptive rights, and shall not be entitled to
receive any notice of any proceedings of the Company, except as provided herein.

          Section 11  Adjustment of Purchase Price, Number and Kind of Shares
                      -------------------------------------------------------
or Number of Rights.  The Purchase Price, the number and kind of shares and
- - -------------------                                                        
other securities covered by each Right and the number of Rights outstanding are
subject to adjustment from time to time as provided in this Section 11.

               (a)    (i)   In the event the Company shall at any time after the
     date of this Agreement (A) declare a dividend on any security of the
     Company payable in Preferred Shares, (B) subdivide the outstanding
     Preferred Shares, (C) combine the outstanding Preferred Shares into a
     smaller number of shares, or (D) issue any shares of its capital stock in a
     reclassification of the Preferred Shares (including any such
     reclassification in connection with a consolidation or merger in which the
     Company is the continuing or surviving corporation), except as otherwise
     provided in this Section 11(a) and Section 7(e) hereof, the Purchase Price
     in effect at the time of the record date for such dividend or of the
     effective date of such subdivision, combination or reclassification, and
     the number and kind of Preferred Shares or capital stock, as the case may
     be, issuable on such date, shall be proportionately, adjusted so that the
     holder of any Right exercised after such time shall be entitled to receive,
     upon payment of the adjusted Purchase Price, the aggregate number and kind
     of Preferred Shares or capital stock, as the case may be, that, if such
     Right had been exercised immediately prior to such date and at a time when
     the Preferred Share transfer books were open, such holder would have owned
     upon such exercise and been entitled to receive by virtue of such dividend,
     subdivision, combination or reclassification.  If an event occurs which
     would require an adjustment under both this Section 11(a)(i) and Section
     11(a)(ii) hereof, the adjustment provided for in this Section 11(a)(i)
     shall be in addition to, and shall be made prior to, any adjustment
     required pursuant to Section 11(a)(ii) hereof.

               (ii)   In the event:

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<PAGE>
 
                    (A) any Acquiring Person or any Associate or Affiliate of
          any Acquiring Person, at any time after the Stock Acquisition Date,
          directly or indirectly, (1) shall merge into the Company or otherwise
          combine with the Company and the Company shall be the continuing or
          surviving corporation of such merger or combination and the Common
          Shares of the Company or other equity securities of the Company shall
          remain outstanding, (2) shall, in one transaction or a series of
          transactions, transfer any assets to the Company or to any of its
          Subsidiaries in exchange (in whole or in part) for Common Shares, for
          shares of other equity securities of the Company, or for securities
          exercisable for or convertible into shares of equity securities of the
          Company (Common Shares or otherwise) or otherwise obtain from the
          Company, with or without consideration, any additional shares of such
          equity securities or securities exercisable for or convertible into
          shares of such equity securities (other than pursuant to a pro rata
          distribution to all holders of Common Shares) (3) shall sell,
          purchase, lease, exchange, mortgage, pledge, transfer or otherwise
          acquire or dispose of assets in one transaction or a series of
          transactions, to, from or with (as the case may be) the Company or any
          of its Subsidiaries, on terms and conditions less favorable to the
          Company than the Company would be able to obtain in arm's-length
          negotiation with an unaffiliated third party, other than pursuant to a
          Section 13 Event, (4) shall sell, purchase, lease, exchange, mortgage,
          pledge, transfer or otherwise dispose of assets having an aggregate
          fair market value of more than $5,000,000 in one transaction or a
          series of transactions, to, from or with (as the case may be) the
          Company or any of the Company's Subsidiaries (other than incidental to
          the lines of business, if any, engaged in as of the date hereof
          between the Company and such Acquiring Person or Associate or
          Affiliate), other than pursuant to a Section 13 Event, (5) shall
          receive any compensation from the Company or any of the Company's
          Subsidiaries other than compensation for full-time employment as a
          regular employee at rates in accordance with the Company's (or its
          Subsidiaries') past practices, or (6) shall receive the benefit,
          directly or indirectly (except proportionately as a shareholder and
          except if resulting from a requirement of law or governmental
          regulation), of any loans, advances, guarantees, pledges or other
          financial assistance or any tax credits or other tax advantages
          provided by the Company or any of its Subsidiaries; or

                    (B) any Person (other than (i) Alfred P. West, Jr., (ii) any
          immediate family member of Alfred P. West Jr. who exceeds the 20%
          Company ownership threshold solely by reason of a transfer of Common
          Shares from Alfred P. West Jr. or his spouse to such immediate family
          member and who does not subsequently acquire at least 1% of the Common
          Shares outstanding from a source other than Alfred P. West Jr. or his
          spouse, (iii) the Company, (iv) any Subsidiary of the Company, (v) any
          employee benefit plan of the Company or of any Subsidiary of the
          Company, or (vi) any Person or entity organized, appointed or
          established by the Company for or pursuant to the terms of any such
          plan), alone or together with its Affiliates and Associates, shall, at
          any time after the Rights Dividend Declaration Date, become the
          Beneficial Owner of 20% or more of the Common Shares then outstanding,
          unless the event causing the 20% threshold, to be crossed is a Section
          13 Event, or is an acquisition of Common Shares pursuant to a tender
          offer or an exchange offer for all outstanding Common Shares at a
          price and on terms determined by at least a majority of the Continuing
          Directors, after receiving advice from one or more nationally
          recognized investment banking firms, to be in the best interests of
          the Company and its shareholders (a "Qualifying Offer"), after taking
          into consideration all factors that such members of the Board of
          Directors deem relevant, including, without limitation, the long-term
          prospects and value of the Company and the prices and terms that such
          members of the Board of Directors believe in good faith, could
          reasonably be achieved if the Company or its assets were sold on an
          orderly basis designed to realize maximum value, or

                    (C) during such time as there is an Acquiring Person, there
          shall be any reclassification of securities (including any reverse
          stock split), or recapitalization of the Company, or any merger or
          consolidation of the Company with any of its Subsidiaries or any other
          transaction or series of transactions involving the Company or any of
          its Subsidiaries, other than a Section 13 Event or series of such
          Section 13 Events (whether or not with or into or otherwise involving
          an Acquiring Person) that has the effect, directly or indirectly, of
          increasing by more than 1% the proportionate share of the outstanding
          shares of any class of equity securities of the Company or any of its
          Subsidiaries that is directly or indirectly beneficially owned by any
          Acquiring Person or any Associate or Affiliate of any Acquiring
          Person,

                                                                              80
<PAGE>
 
     then, promptly following the first occurrence of a Section 11(a)(ii) Event,
     proper provision shall be made so that each holder of a Right (except as
     provided below and in section 7(e) hereof) shall thereafter have the right
     to receive, upon exercise thereof at the then current Purchase Price in
     accordance with the terms of this Agreement, in lieu of a number of
     Preferred Share Fractions, such number of Common Shares of the Company as
     shall equal the result obtained by (x) multiplying the then current
     Purchase Price by the then number of Preferred Share Fractions for which a
     Right was exercisable immediately prior to the first occurrence of a
     Section 11(a)(ii) Event, and (y) dividing that product (which, following
     such first occurrence, shall thereafter be referred to as the "Purchase
     Price" for each Right and for all purposes of this Agreement) by 50% of the
     current market price (as defined in and determined pursuant to Section
     11(d) hereof) per Common Share on the date of such first occurrence (such
     number, of shares, the "Adjustment Shares").

               (iii) In the event that the number of Common Shares that are
          authorized by the Company's Articles of Incorporation but not
          outstanding or reserved for issuance for purposes other than upon
          exercise of the Rights are not sufficient to permit the exercise in
          full of the Rights in accordance with the foregoing subparagraph (ii)
          of this Section 11(a), the Company shall: (A) determine the excess of
          the value of the Adjustment Shares issuable upon the exercise of a
          Right (the "Current Value") over the Purchase Price (such excess, the
          "Spread"), and (B) with respect to each Right, make adequate provision
          to substitute for the Adjustment Shares, upon payment of the
          applicable Purchase Price, (1) cash, (2) a reduction in the Purchase
          Price, (3) Common Shares of the same or a different class or other
          equity securities of the Company (including, without limitation,
          preferred shares or units of preferred shares that a majority of the
          Continuing Directors in office at the time has deemed (based, among
          other things, on the dividend and liquidation rights of such preferred
          shares) to have substantially the same economic value as Common Shares
          (such preferred shares, hereinafter referred to as "common share
          equivalents")), (4) debt securities of the Company, (5) other assets,
          or (6) any combination of the foregoing, having an aggregate value
          equal to the Current Value, where such aggregate value has been
          determined by a majority of the Continuing Directors in office at the
          time after considering the advice of a nationally recognized
          investment banking firm selected by the Board of Directors of the
          Company; provided, however, if the Company shall not have made
          adequate provision to deliver value pursuant to clause (B) above
          within thirty (30) days following the later of (x) the first
          occurrence of a Section 11 (a) (ii) Event and (y) the date on which
          the Company's right of redemption pursuant to Section 23(a) expires
          (the later of (x) and (y) being referred to herein as the "Section
          11(a)(ii) Trigger Date"), then the Company shall be obligated to
          deliver, upon the surrender for exercise of a Right and without
          requiring payment of the Purchase Price, Common Shares (to the extent
          available) and then, if necessary, cash, which shares and/or cash have
          an aggregate value equal to the Spread. If the Board of Directors of
          the Company shall determine in good faith that it is likely that
          sufficient. additional Common Shares could be authorized for issuance
          upon exercise in full of the Rights, the thirty (30) day period set
          forth above may be extended to the extent necessary, but not more than
          ninety (90) days after the Section 11(a)(ii) Trigger Date, in order
          that the Company may seek shareholder approval for the authorization
          of such additional shares (such period, as it may be extended, the
          "Substitution Period"). To the extent that the Company determines that
          some action need be taken pursuant to the first and/or second
          sentences of this Section 11(a)(iii), the Company shall provide,
          subject to Section 7(e) hereof, that such action shall apply uniformly
          to all outstanding Rights, and may suspend the exercisability of the
          Rights until the expiration of the Substitution Period in order to
          seek any authorization of additional shares and/or to decide the
          appropriate form of distribution to be made pursuant to such first
          sentence and to determine the value thereof. The Company shall make a
          public announcement when the exercisability of the Rights has been
          temporarily suspended, and again when such suspension is no longer in
          effect. The Company shall notify the Rights Agent of the suspension of
          the exercisability of the Rights, and provide the Rights Agent with a
          copy of such public announcement. For purposes of this Section
          11(a)(iii), the value of the Common Shares shall be the current market
          price (as determined pursuant to Section 11(d) hereof) per Common
          Share on the Section 11(a)(ii) Trigger Date and the value of any
          "common share equivalent" shall be deemed to have the same value as
          the Common Shares on such date.

                                                                              81
<PAGE>
 
          (b)  In case the Company shall fix a record date for the issuance of
rights, options or warrants to holders of any security of the Company entitling
them to subscribe for or purchase (for a period expiring within forty-five (45)
calendar days after such record date) Preferred Shares (or shares having the
same rights, privileges and preferences as the Preferred Shares ("equivalent
preferred shares")) or securities convertible into Preferred Shares or
equivalent preferred shares at a price per Preferred Share or per equivalent
preferred share (or having a conversion price per share, if a security
convertible into Preferred Shares or equivalent preferred shares) less than the
current market price (as determined pursuant to Section 11(d) hereof) per
Preferred Share on such record date, the Purchase Price to be in effect after
such record date shall be determined by multiplying the Purchase Price in effect
immediately prior to such record date by a fraction, the numerator of which
shall be the number of Preferred Shares outstanding on such record date, plus
the number of Preferred Shares that the aggregate offering price of the total
number of Preferred Shares and/or equivalent preferred shares so to be offered
(and/or the aggregate initial conversion price of the convertible securities so
to be offered) would purchase at such current market price, and the denominator
of which shall be the number of Preferred Shares outstanding on such record
date, plus the number of additional Preferred Shares and/or equivalent preferred
shares to be offered for subscription or purchase (or into which the convertible
securities so to be offered are initially convertible).  In case such
subscription price may be paid by delivery of consideration part or all of which
may be in a form other than cash, the value of such consideration shall be as
determined in good faith by the Board of Directors of the Company, whose
determination shall be described in a statement filed with the Rights Agent and
shall be binding on the Company, the Rights Agent and the holders of the Rights.
Preferred Shares owned by or held for the account of the Company shall not be
deemed outstanding for the purpose of any such computation.  Such adjustment
shall be made successively whenever such a record date is fixed, and in the
event that such rights or warrants are not so issued, the Purchase Price shall
be adjusted to be the Purchase Price that would then be in effect if such record
date had not been fixed.

          (c)  In case the Company shall fix a record date for a distribution to
all holders of Preferred Shares (including any such distribution made in
connection with a consolidation or merger in which the Company is the continuing
corporation) of evidences of indebtedness, cash (other than a regular quarterly
dividend out of the earnings or retained earnings of the Company), assets (other
than a regular quarterly dividend referred to above or dividend payable in
Preferred Shares, but including any dividend payable in stock other than
Preferred Shares) or subscription rights or warrants (excluding those referred
to in Section 11(b) hereof), the Purchase Price to be in effect after such
record date shall be determined by multiplying the Purchase Price in effect
immediately prior to such record date by a fraction, the numerator of which
shall be the current market price (as determined pursuant to Section 11(d)
hereof) per Preferred Share on such record date, less the then fair market value
(as determined in good faith by the Board of Directors of the Company, whose
determination shall be described in a statement filed with the Rights Agent and
shall be conclusive for all purposes) of the portion of the cash, assets or
evidences of indebtedness so to be distributed or of such subscription rights or
warrants applicable to a Preferred Share and the denominator of which shall be
such current market price (as determined pursuant to Section 11(d) hereof) per
Preferred Share.  Such adjustments shall be made successively whenever such a
record date is fixed, and in the event that such distribution is not so made,
the Purchase Price shall be adjusted to be the Purchase Price which would have
been in effect if such record date had not been fixed.

          (d)  (i)  For the purpose of any computation hereunder, other than
computations made pursuant to Section 11(a)(iii) hereof, the "current market
price" per Common Share on any date shall be deemed to be the average of the
daily closing prices per Common Share for the thirty (30) consecutive Trading
Days (as such term is hereinafter defined) immediately prior to and not
including such date, and for purposes of computations made pursuant to Section
11(a)(iii) hereof, the "current market price" per Common Share on any date shall
be deemed to be the average of the daily closing prices per Common Share for the
ten (10) consecutive Trading Days immediately following and not including such
date; provided, however, that in the event that the current market price per
Common Share is determined during a period following the announcement by the
issuer of such Common Share of (A) a dividend or distribution on such Common
Share payable in Common Shares or securities convertible into Common Shares
(other than the Rights), or (B) any subdivision, combination or reclassification
of such Common Shares, and prior to the expiration of the requisite thirty (30)
Trading Day or ten (10) Trading Day period, as set forth above, after the ex-
dividend date for such dividend or distribution, or the record date for such
subdivision, combination or reclassification, then, and in each such case, the
"current market price" shall be properly adjusted to take into account ex-
dividend trading.  The closing price for each Trading Day shall be the last sale
price, regular way, or, in case no such sale takes place on such day, the
average of the closing bid and asked prices, regular way, in either case as
reported in the principal consolidated transaction reporting system with respect
to securities listed or admitted to trading on the New York Stock Exchange or,
if the Common Shares are not listed or admitted to trading on the New York Stock
Exchange, as reported in the principal consolidated transaction reporting system
with respect to securities listed on the principal national securities exchange
on which the Common Shares are listed or admitted to trading or, if the Common
Shares are not listed or admitted to trading on any national securities
exchange, the last quoted price or, if not so quoted, the average of the high
bid and low asked prices in the over-the-counter

                                                                              82
<PAGE>
 
market, as reported by the National Association of Securities Dealers, Inc.
Automated Quotation System ("Nasdaq") or such other system then in use, or, if
on any such date the Common Shares are not quoted by any such organization, the
average of the closing bid and asked prices as furnished by a professional
market maker making a market in the Common Shares selected by the Board of
Directors of the Company.  If on any such date no market maker is making a
market in the Common Shares, the fair value of such shares on such date as
determined in good faith by the Board of Directors of the Company shall be used.
The term "Trading Day" shall mean a day on which the principal national
securities exchange on which the Common Shares are listed or admitted to trading
is open for the transaction of business or, if the Common Shares are not listed
or admitted to trading on any national securities exchange, a Business Day.  If
the Common Shares are not publicly held or not so listed or traded, "current
market price" per share shall mean the fair value per share as determined in
good faith by the Board of Directors of the Company, whose determination shall
be described in a statement filed with the Rights Agent and shall be conclusive
for all purposes.

               (ii)  For the purpose of any computation hereunder, the "current
          market price" per Preferred Share shall be determined in the same
          manner as set forth above for the Common Shares in clause (i) of this
          Section 11 (d) (other than the last sentence thereof).  If the current
          market price per Preferred Share cannot be determined in the manner
          provided above or if the Preferred Shares are not publicly held or
          listed or traded in a manner described in clause (i) of this Section
          11 (d), the "current market price" per Preferred Share shall be
          conclusively deemed to be an amount equal to 2,000 (as such number may
          be appropriately adjusted for such events as stock splits, stock
          dividends and recapitalizations with respect to the Common Shares
          occurring after the date of this Agreement) multiplied by the current
          market price per Common Share.  If neither the Common Shares nor the
          Preferred Shares are publicly held or so listed or traded, "current
          market price" per Preferred Share shall mean the fair value per share
          as determined in good faith by the Board of Directors of the Company,
          whose determination shall be described in a statement filed with the
          Rights Agent and shall be conclusive for all purposes.  For all
          purposes of this Agreement, the "current market price" of a Preferred
          Share Fraction shall be equal to the "current market price" of one
          Preferred Share divided by 2,000.

               (e)   Anything herein to the contrary notwithstanding, no
adjustment in the Purchase Price shall be required unless such adjustment would
require an increase or decrease of at least one percent (1%) in the Purchase
Price; provided, however, that any adjustments which by reason of this Section
11(e) are not required to be made shall be carried forward and taken into
account in any subsequent adjustment. All calculations under this Section 11
shall be made to the nearest cent or to the nearest ten-thousandth of a Common
Share or one-millionth of a Preferred Share, as the case may be. Notwithstanding
the first sentence of this subsection (e), any adjustment required by this
Section 11 shall be made no later than the earlier of (i) three (3) years from
the date of the transaction that mandates such adjustment or (ii) the Expiration
Date.

               (f)   If as a result of an adjustment made pursuant to Section
11(a)(ii) or Section 13(a) hereof, the holder of any Right thereafter exercised
shall become entitled to receive any shares of capital stock other than
Preferred Shares, thereafter the number of such other shares so receivable upon
exercise of any Right and the Purchase Price thereof shall be subject to
adjustment from time to time in a manner and on terms as nearly equivalent as
practicable to the provisions with respect to the Preferred Shares contained in
Sections 11(a), (b), (c), (e), (g), (h), (i), (j), (k), (m) and (q), and the
provisions of Sections 7, 9, 10, 13 and 14 hereof with respect to the Preferred
Shares shall apply on like terms to any such other shares.

               (g)   All Rights originally issued by the Company subsequent to
any adjustment made to the Purchase Price hereunder shall evidence the right to
purchase, at the adjusted Purchase Price, the number of Preferred Share
Fractions purchasable from time to time hereunder upon exercise of the Rights,
all subject to further adjustment as provided herein.

               (h)   Unless the Company shall have exercised its election as
provided in Section 11(i), upon each adjustment of the Purchase Price as a
result of the calculations made in subsections (b) and (c), each Right
outstanding immediately prior to the making of such adjustment shall thereafter
evidence the right to purchase, at the adjusted Purchase Price, that number of
Preferred Share Fractions (calculated to the nearest one-one-millionth of a
Preferred Share) obtained by (i) multiplying (x) the number of Preferred Share
Fractions covered by a Right immediately prior to this adjustment, by (y) the
Purchase Price in effect immediately prior to such adjustment of the Purchase
Price, and (ii) dividing the product so obtained by the Purchase Price in effect
immediately after such adjustment of the Purchase Price.

                                                                              83
<PAGE>
 
               (i)   The Company may elect on or after the date of any
adjustment of the Purchase Price to adjust the number of Rights, in lieu of any
adjustment in the number of Preferred Share Fractions purchasable upon the
exercise of a Right. Each of the Rights outstanding after the adjustment in the
number of Rights shall be exercisable for the number of Preferred Share
Fractions for which a Right was exercisable immediately prior to such
adjustment. Each Right held of record prior to such adjustment, of the number of
Rights shall become that number of Rights (calculated to the nearest one-one-
millionth of a Preferred Share) obtained by dividing the Purchase Price in
effect immediately prior to adjustment of the Purchase Price by the Purchase
Price in effect immediately after adjustment of the Purchase Price. The Company
shall make a public announcement of its election to adjust the number of Rights,
indicating the record date for the adjustment, and, if known at the time, the
amount of the adjustment to be made. The Company shall forward a copy of such
public announcement to the Rights Agent. The record date for the adjustment may
be the date on which the Purchase Price is adjusted or any day thereafter, but,
if the Rights Certificates have been issued, shall be at least ten (10) days
later than the date of the public announcement. If Rights Certificates have been
issued, upon each adjustment of the number of Rights pursuant to this Section
11(i), the Company shall, as promptly as practicable, cause to be distributed to
holders of record of Rights Certificates on such record date Rights Certificates
evidencing, subject to Section 14 hereof, the additional Rights to which such
holders shall be entitled as a result of such adjustment, or, at the option of
the Company, shall cause to be distributed to such holders of record in
substitution and replacement for the Rights Certificates held by such holders
prior to the date of adjustment, and upon surrender thereof, if required by the
Company, new Rights Certificates evidencing all the Rights to which such holders
shall be entitled after such adjustment. Rights Certificates so to be
distributed shall be issued, executed and countersigned in the manner provided
for herein (and may bear, at the option of the Company, the adjusted Purchase
Price) and shall be registered in the names of the holders of record of Rights
Certificates on the record date specified, in the public announcement.

               (j)   Irrespective of any adjustment or change in the Purchase
Price or the number of Preferred Share Fractions issuable upon the exercise of
the Rights, the Rights Certificates theretofore and thereafter issued may
continue to express the Purchase Price per Preferred Share Fraction and the
number of Preferred Share Fractions that were expressed in the initial Rights
Certificates issued hereunder.

               (k)   Before taking any action that would cause an adjustment
reducing the Purchase Price below the then stated or par value, if any, of the
number of Preferred Share Fractions issuable upon exercise of the Rights, the
Company shall take any corporate action that may, in the opinion of its counsel,
be necessary in order that the Company may validly and legally issue such number
of fully paid and nonassessable Preferred Share Fractions at such adjusted
Purchase Price.

               (l)   In any case in which this Section 11 shall require that an
adjustment in the Purchase Price be made effective as of a record date for a
specified event, the Company may elect to defer until the occurrence of such
event the issuance to the holder of any Right exercised after such record date
the number of Preferred Share Fractions and other capital stock or securities of
the Company, if any, issuable upon such exercise over and above the number of
Preferred Share Fractions and other capital stock or securities of the Company,
if any, issuable upon such exercise on the basis of the Purchase Price in effect
prior to such adjustment; provided, however, that the Company shall deliver to
such holder a due bill or other appropriate instrument evidencing such holder's
right to receive such additional shares (fractional, or otherwise) or securities
upon the occurrence of the event requiring such adjustment, and the Company
shall also deliver a copy of such bill or instrument to the Rights Agent.

               (m)   Anything in this Section 11 to the contrary
notwithstanding, the Company shall be entitled to make such reductions in the
Purchase Price, in addition to those adjustments expressly required by this
Section 11, as and to the extent that in their good faith judgment the Board of
Directors of the Company shall determine to be advisable in order that any (i)
consolidation or subdivision of the Preferred Shares, (ii) issuance wholly for
cash of any Preferred Shares at less than the current market price, (iii)
issuance wholly, for cash for Preferred Shares or securities which by their
terms are convertible into or exchangeable for Preferred Shares, (iv) stock
dividends or (v) issuance of rights, options or warrants referred to in this
Section 11, hereafter made by the Company to holders of its Preferred Shares
shall not be taxable to such shareholders.

                                                                              84
<PAGE>
 
               (n)    The Company covenants and agrees that it shall not, at any
time after the Distribution Date, (i) consolidate with any other Person (other
than a Subsidiary of the Company in a transaction which complies with Section
11(o) hereof), (ii) merge with or into any other Person (other than a Subsidiary
of the Company in a transaction which complies with Section 11(o) hereof), or
(iii) sell or transfer (or permit any Subsidiary to sell or transfer), in one
transaction, or a series of related transactions, assets or earning power
aggregating more than 50% of the assets or earning power of the Company and its
Subsidiaries (taken as a whole) to any other person or persons (other than the
Company and/or any of its Subsidiaries in one or more transactions each of which
complies with Section 11(o) hereof), if (x) at the time of or immediately after
such consolidation, merger or sale there are any rights, warrants or other
instruments or securities outstanding or agreements in effect that would
substantially diminish or otherwise eliminate the benefits intended to be
afforded by the Rights or (y) prior to, simultaneously with or immediately after
such consolidation, merger or sale, the shareholders of the Person who
constitutes, or would constitute, the "Principal Party" for purposes of Section
13(a) hereof shall have received a distribution of Rights previously owned by
such Person or any of its Affiliates and Associates.

               (o)    The Company covenants and agrees that, after the
Distribution Date, it will not, except as permitted by Section 23 or Section 26
hereof, take (or permit any Subsidiary to take) any action if at the time such
action is taken it is reasonably foreseeable that such action will diminish
substantially or otherwise eliminate the benefits intended to be afforded by the
Rights.

               (p)    Anything in this Agreement to the contrary
notwithstanding, in the event that the Company shall at any time after the
Rights Dividend Declaration Date and prior to the Distribution Date (i) declare
a dividend on the outstanding Common Shares payable in Common Shares, (ii)
subdivide the outstanding Common Shares, or (iii) combine the outstanding Common
Shares into a smaller number of shares, the number of Rights associated with
each Common Share then outstanding, or issued or delivered thereafter but prior
to the Distribution Date, shall be proportionately adjusted so that the number
of Rights thereafter associated with each Common Share following any such event
shall equal the result obtained by multiplying the number of Rights associated
with each Common Share immediately prior to such event by a fraction the
numerator of which shall be the total number of Common Shares outstanding
immediately prior to the occurrence of the event and the denominator of which
shall be the total number of Common Shares outstanding immediately following the
occurrence of such event.

               (q)    In the event that the Rights become exercisable following
a Section 11(a)(ii) Event, the Company, by action of a majority of the
Continuing Directors in office at the time, may authorize that the Rights,
subject to Section 7(e) hereof, either (i) will only be, or (ii) may, at the
option of the holder entitled to exercise the Rights be, exercisable for, in
either case 50% of the Common Shares (or cash or other securities or assets to
be substituted for the Adjustment Shares pursuant to subsection (a)(iii)) that
would otherwise be purchasable under subsection (a), in consideration of the
surrender to the Company of the Rights so exercised and without other payment of
the Purchase Price. Rights exercised under this subsection (q) shall be deemed
to have been exercised in full and shall be canceled.

          Section 12  Certificate of Adjusted Purchase Price or Number of
                      ---------------------------------------------------
Shares.  Whenever an adjustment is made as provided in Section 11 or Section 13
- - ------                                                                         
hereof, the Company shall (a) promptly prepare a certificate setting forth such
adjustment and a brief, reasonably detailed statement of the facts and
computations accounting for such adjustment, (b) promptly file with the Rights
Agent, and with each transfer agent for the Preferred Shares and the Common
Shares, a copy of such certificate, and (c) mail a brief summary thereof to each
holder of a Rights Certificate (or, if prior to the Distribution Date, to each
holder of a certificate representing Common Shares) in accordance with Section
25 hereof.  The Rights Agent shall be fully protected in relying on any such
certificate and on any adjustment therein contained and shall have no duty with
respect to and shall not be deemed to have knowledge of any such adjustment
unless and until it shall have received such a certificate.

          Section 13  Consolidation, Merger or Sale or Transfer of Assets or
                      ------------------------------------------------------
Transfer of Assets or Earning Power.
- - ----------------------------------- 

                                                                              85
<PAGE>
 
               (a)    In the event that, following the Stock Acquisition Date,
directly or indirectly, (x) the Company shall consolidate with, or merge with
and into, any other Person (other than a Subsidiary of the Company in a
transaction which complies with Section 11(o) hereof), and the Company shall not
be the continuing or surviving corporation of such consolidation or merger, (y)
any person (other than a Subsidiary of the Company in a transaction which
complies with Section 11(o) hereof) shall consolidate with, or merge with or
into, the Company, and the Company shall be the continuing or surviving
corporation of such consolidation or merger and, in connection with such
consolidation or merger, all or part of the outstanding Common Shares shall be
changed into or exchanged for stock or other securities of any other Person or
cash or any other property, or (z) the Company shall sell or otherwise transfer
(or one or more of its Subsidiaries shall sell or otherwise transfer), in one
transaction or a series of related transactions, assets or earning power
aggregating more than 50% of the assets, operating income, cash flow or earning
power of the Company and its Subsidiaries (taken as a whole) to any Person or
Persons (other than the Company or any Subsidiary of the Company in one or more
transactions each of which complies with Section 11(o) hereof), then, and in
each such case and except as contemplated by subsection (d), proper provision
shall be made so that:

               (i)    each holder of a Right, except as provided in Section 7(e)
          hereof or subsection (e), shall thereafter have the right to receive,
          upon the exercise thereof at the then current Purchase Price in
          accordance with the terms of this Agreement, such number of validly
          authorized and issued, fully paid, non assessable and freely tradeable
          Common Shares of the Principal Party (as such term is hereinafter
          defined), not subject to any liens, encumbrances, rights of first
          refusal or other adverse claims, as shall be equal to the result
          obtained by (1) multiplying the then current Purchase Price by the
          number of Preferred Share Fractions for which a Right is exercisable
          immediately prior to the first occurrence of a Section 13 Event (or,
          if a Section 11(a)(ii) Event has occurred prior to the first
          occurrence of a Section 13 Event, multiplying the number of such
          shares for which a Right was exercisable immediately prior to the
          first occurrence of a Section 11(a)(ii) Event by the Purchase Price in
          effect immediately prior to such first occurrence), and (2)  dividing
          that product (which, following the first occurrence of a Section 13
          Event, shall be referred to as the "Purchase Price" for each Right and
          for all purposes of this Agreement) by 50% of the current market price
          (determined pursuant to Section 11(d)(i) hereof) per Common Share of
          such Principal Party on the date of consummation of such Section 13
          Event,

               (ii)   such Principal Party shall thereafter be liable for, and
          shall assume, by virtue of such Section 13 Event, all the obligations
          and duties of the Company pursuant to this Agreement;

               (iii)  the term "Company" shall thereafter be deemed to refer to
          such Principal Party, it being specifically intended that the
          provisions of Section 11 hereof shall apply only to such Principal
          Party following the first occurrence of a Section 13 Event;

               (iv)   such Principal Party shall take such steps (including, but
          not limited to, the reservation of a sufficient number of its Common
          Shares) in connection with the consummation of any such transaction as
          may be necessary to assure that the provisions hereof shall thereafter
          be applicable, as nearly as reasonably may be, in relation to its
          Common Shares thereafter deliverable upon the exercise of the Rights;
          and

               (v)    the provisions of Section 11(a)(ii) hereof shall be of no
          effect following the first occurrence of any Section 13 Event.

               (b)    "Principal Party" shall mean

                      (i)   in the case of any transaction described in clause
          (x) or (y) of the first sentence of subsection (a), the Person that is
          the issuer of any securities into which Common Shares of the Company
          are converted in such merger or consolidation, and if no securities
          are so issued, the Person that is the other party to such merger or
          consolidation; and

                      (ii)  in the case of any transaction described in clause
          (z) of the first sentence of subsection (a), the Person that is the
          party receiving the greatest portion of the assets or earning power
          transferred pursuant to such transaction or transactions;

                                                                              86
<PAGE>
 
provided, however, that in the case of either (i) or (ii) above, (1) if the
Common Shares of such Person are not at such time and have not been continuously
over the preceding twelve (12) month period registered under Section 12 of the
Exchange Act, and such Person is a direct or indirect Subsidiary of another
Person the Common Shares of which are and have been so registered, "Principal
Party" shall refer to such other Person, and (2) in case such Person is a
Subsidiary, directly or indirectly, of more than one Person, the Common Shares
of two or more of which are and have been so registered, "Principal Party" shall
refer to whichever of such Persons is the issuer of the Common Shares having the
greatest aggregate market value.

               (c)    The Company shall not consummate any such consolidation,
merger, sale or transfer unless the Principal Party shall have a sufficient
number of authorized shares of its Common Shares that have not been issued or
reserved for issuance to permit the exercise in full of the Rights in accordance
with this Section 13 and unless prior thereto the Company and such Principal
Party shall have executed and delivered to the Rights Agent a supplemental
agreement providing for the terms set forth in paragraphs (a) and (b) of this
Section 13 and further providing that, as soon as practicable after the date of
any Section 13 event, the Principal Party will

                      (i)    prepare and file a registration statement under the
     Act, with respect to the Rights and the securities purchasable upon
     exercise of the Rights on an appropriate form, and will use its best
     efforts to cause such registration statement to (A) become effective as
     soon as practicable after such filing and (B) remain effective (with a
     prospectus at all times meeting the requirements of the Act) until the
     Expiration Date;


                      (ii)   use its best efforts to qualify or register Rights
     and the securities purchasable upon exercise of the Rights under blue sky
     laws of such jurisdiction, as may be necessary or appropriate; and

                      (iii)  deliver to holders of the Rights historical
     financial statements for the Principal Party and each of its Affiliates
     that comply in all respects with the requirements for registration on Form
     10 under the Exchange Act.

The provisions of this Section 13 shall similarly apply to successive mergers or
consolidations or sales or other transfers.  In the event that a Section 13
Event shall occur at any time after the occurrence of a Section 11(a)(ii) Event,
the Rights that have not theretofore been exercised shall thereafter become
exercisable solely in the manner described in Section 13(a).

               (d)    Notwithstanding anything in this Agreement to the
contrary, Section 13 (other than this subsection (d)) shall not be applicable
to, and the term "Section 13 Event" shall not include, a transaction described
in subparagraphs (x) and (y) of Section 13(a) if (i) such transaction is
consummated with a Person, or Persons who acquired Common Shares pursuant to a
Qualifying Offer (or a wholly owned Subsidiary of any such Person or Persons),
(ii) the price per Common Share offered in such transaction is not less than the
price per Common Share paid to all holders of Common Shares whose shares were
purchased pursuant to such tender offer or exchange offer and (iii) the form of
consideration being offered to the remaining holders of Common Shares pursuant
to such transaction is the same as the form of consideration paid pursuant to
such tender or exchange offer. Upon consummation of any such transaction
contemplated by this subsection (d), all Rights hereunder shall expire.

               (e)    In the event that the Rights become exercisable under
subsection (a) (except as provided in subsection (d)), the Company, by action of
a majority of the Continuing Directors in office at the time, may authorize that
the Rights either (i) will only be or (ii) may, at the option of the Principal
Party be, exercisable for, 50% of the Common Shares of the Principal Party that
would otherwise be purchasable under subsection (a), in consideration of the
surrender to the Principal Party, as the successor to the Company under
subsection (a)(ii), of the Rights so exercised and without other payment of the
Purchase Price. Rights exercised under this subsection (e) shall be deemed to
have been exercised in full and shall be canceled.

          Section 14  Fractional Rights and Fractional Shares.
                      --------------------------------------- 

                                                                              87
<PAGE>
 
               (a)   The Company shall not be required to issue fractions of
Rights, except prior to the Distribution Date as provided in Section 11(p)
hereof, or to distribute Rights Certificates that evidence fractional Rights. In
lieu of such fractional Rights, there shall be paid to the registered holders of
the Rights Certificates with regard to which such fractional Rights would
otherwise be issuable, an amount in cash equal to the same fraction of the
current market value of a whole Right. For purposes of this subsection (a), the
current market value of a whole Right shall be the closing price of the Rights
for the Trading Day immediately prior to the date on which such fractional
Rights would have been otherwise issuable. The closing price of the Rights for
any day shall be the last sale price, regular way, or, in case no such sale
takes place on such day, the average of the closing bid and asked prices,
regular way, in either case as reported in the principal consolidated
transaction reporting system with respect to securities listed or admitted to
trading on the New York Stock Exchange or, if the Rights are not listed or
admitted to trading on the New York Stock Exchange, as reported in the principal
consolidated transaction reporting system with respect: to securities listed on
the principal national securities exchange on which the Rights are listed or
admitted to trading, or if the Rights are not listed or admitted to trading on
any national securities exchange, the last quoted price or, if not so quoted,
the average of the high bid and low asked prices in the over-the-counter market,
as reported by Nasdaq or such other system then in use or, if on any such date
the Rights are not quoted by any such organization, the average of the closing
bid and asked prices as furnished by a professional market maker making a market
in the Rights selected by the Board of Directors of the Company. If on any such
date no such market maker is making a market in the Rights the fair value of the
Rights on such date as determined in good faith by the Board of Directors of the
Company shall be used.

               (b)   The Company shall not be required to issue fractions of
Preferred Shares upon exercise of the Rights or to distribute certificates which
evidence fractional Preferred Shares, except in each case for fractions which
are integral multiples of Preferred Shares. In lieu of fractional Preferred
Shares that are not integral multiples of Preferred Shares, the Company may pay
to the registered, holders of Rights Certificates at the time such Rights are
exercised as herein provided an amount in cash equal to the same fraction of the
current market value of a Preferred Share. For purposes of this subsection (b),
the current market value of one Preferred Share shall be the closing price of a
Preferred Share (as determined pursuant to Section 11(d)(ii) hereof) for the
Trading Day immediately prior to the date of such exercise.

               (c)   Following the occurrence of a Triggering Event, the Company
shall not be required to issue fractions of Common Shares upon exercise of the
Rights or to distribute certificates that evidence fractional Common Shares. In
lieu of fractional Common Shares, the Company may pay to the registered holders
of Rights Certificates at the time such Rights are exercised as herein provided
an amount in cash equal to the same fraction of the current market value of one
Common Share, For purposes of this subsection (c), the current market value of
one Common Share shall be the closing price of one Common Share (as determined
pursuant to Section 11(d)(i) hereof) for, the Trading Day immediately prior to
the date of such exercise.

               (d)   Whenever a payment for fractional Rights or fractional
shares is to be made by the Rights Agent, the Company shall (i) promptly prepare
and deliver to the Rights Agent a certificate setting forth in reasonable detail
the facts related to such payment and the process and/or formulas utilized in
calculating such payments, and (ii) provide sufficient monies to the Rights
Agent in the form of fully collected funds to make such payments. The Rights
Agent shall be fully protected in relying on such certificate and shall have no
duty with respect to and shall not be deemed to have knowledge of any payment
for fractional Rights or fractional shares under this Section 14 unless and
until it shall have received such a certificate and sufficient monies.

               (e)   The holder of a Right or a beneficial interest in a Right
by the acceptance thereof expressly waives his right to receive any fractional
Rights or any fractional Common Shares upon exercise of a Right, except as
permitted by this Section 14.

                                                                              88
<PAGE>
 
          Section 15  Rights of Action.  All rights of action in respect of
                      ----------------                                     
this Agreement are vested in the respective registered holders of the Rights
Certificates (and, prior to the Distribution Date, the registered holders of the
Common Shares); and any registered holder of any Rights Certificate (or, prior
to the Distribution Date, of the Common Shares), without the consent of the
Rights Agent or of the holder of any other Rights Certificate (or, prior to the
Distribution Date, of the Common Shares), may, in his own behalf and for his own
benefit, enforce, and may institute and maintain any suit, action or proceeding
against the Company to enforce, or otherwise act in respect of, his right to
exercise the Rights evidenced by such Rights Certificate in the manner provided
in such Rights Certificate and in this Agreement.  Without limiting the
foregoing or any remedies available to the holders of Rights or beneficial
interests therein, it is specifically acknowledged that the holders of Rights or
beneficial interests therein would not have an adequate remedy at law for any
breach of this Agreement and shall be entitled to specific performance of the
obligations hereunder and injunctive relief against actual or threatened
violations of the obligations hereunder of any Person subject to this Agreement.

          Section 16  Agreement of Rights Holders.  Every holder of a Right or
                      ---------------------------                             
a beneficial interest in a Right by accepting the same consents and agrees with
the Company and the Rights Agent and with every other such holder that:

               (a)    prior to the Distribution Date, beneficial interests in
the Rights will be transferable only in connection with the transfer of Common
Shares;

               (b)    after the Distribution Date, the Rights Certificates are
transferable only on the registry books of the Rights Agent if surrendered at
the principal office or offices of the Rights Agent designated for such
purposes, duly endorsed or accompanied by a proper instrument of transfer and
with the appropriate forms and certificates fully executed;

               (c)    subject to Section 6(a) and Section 7(f) hereof, the
Company and the Rights Agent may deem and treat the Person in whose name a
Rights Certificate (or, prior to the Distribution Date, the associated Common
Share certificate) is registered as the absolute owner thereof and of the Rights
evidenced thereby (notwithstanding any notations of ownership or writing on the
Rights Certificates or the associated Common Share certificate made by anyone
other than the Company or the Rights Agent) for all purposes whatsoever, and
neither the Company nor the Rights Agent shall be required to be affected by any
notice to the contrary; and

               (d)    notwithstanding anything in this Agreement to the
contrary, neither the Company nor the Rights Agent shall have any liability to
any holder of a Right or a beneficial interest in a Right or other Person as a
result of its inability to perform any of its obligations under this Agreement
by reason of any preliminary or permanent injunction or other order, decree,
judgment or ruling (whether interlocutory or final) issued by a court of
competent jurisdiction or by a governmental, regulatory or administrative agency
or commission, or any statute, rule, regulation or executive order promulgated
or enacted by any governmental authority, prohibiting or otherwise restraining
performance of such obligation; provided, however, the Company must use its best
efforts to have any such order, decree, judgment or ruling lifted or otherwise
overturned as soon as possible.

          Section 17. Rights Certificate Holder Not Deemed a Shareholder.  No
                      --------------------------------------------------     
holder, as such, of any Rights Certificate shall be entitled to vote, receive
dividends or be deemed for any purpose the holder of the number of Preferred
Share Fractions or any other securities of the Company (including the Common
Shares) that may at any time be issuable on the exercise of the Rights
represented thereby, nor shall anything contained herein or in any Rights
Certificate be construed to confer, upon the holder of any Rights Certificate,
as such, any of the rights of a shareholder of the Company or any right to vote
for the election of directors or upon any matter submitted to shareholders at
any meeting thereof, or to give or withhold consent to any corporate action, or
to receive notice of meetings or other actions affecting shareholders (except as
provided in Section 24 hereof), or to receive dividends or subscription rights,
or otherwise, until the Right or Rights evidenced by such Rights Certificate
shall have been exercised in accordance with the provisions hereof.

                                                                              89
<PAGE>
 
          Section 18.  Concerning the Rights Agent.
                       --------------------------- 

               (a)     The Company agrees to pay to the Rights Agent reasonable
compensation for all services rendered by it hereunder and, from time to time,
on demand of the Rights Agent, its reasonable expenses and counsel fees and
disbursements and other disbursements incurred in the preparation, execution,
delivery, amendment, administration and execution of this Agreement and the
exercise and performance of its duties hereunder.  The Company also agrees to
indemnify the Rights Agent and its directors, officers, employees and agents,
for and to hold each of them harmless against, any loss, liability, damage,
judgment, fine, penalty, claim, demand, settlement, cost or expense, incurred
without gross negligence, bad faith or willful misconduct on the part of the
Rights Agent or any such indemnified party, for any action taken, suffered or
omitted by the Rights Agent in connection with the acceptance or administration
of this Agreement or the exercise of its duties hereunder, including without
limitation the costs and expenses of defending against any claim of liability in
the premises.

               (b)     The Rights Agent shall be protected and shall incur no
liability for or in respect of any action taken, suffered or omitted by it in
connection with the acceptance and administration of this Agreement or in the
exercise of its duties hereunder in reliance upon any Rights Certificate or
certificate for Common Shares or for other securities of the Company, instrument
of assignment or transfer, power of attorney, endorsement, affidavit, letter,
notice, direction, consent, certificate, statement, or other paper or document
believed by it to be genuine and to be signed, executed and, where necessary,
verified or acknowledged, by the proper Person or Persons.

          Section 19.  Merger or Consolidation or Change of Name of Rights
                       ---------------------------------------------------
Agent.

               (a)     Any Person into which the Rights Agent or any successor
Rights Agent may be merged or with which it may be consolidated, or any Person
resulting from any merger or consolidation to which the Rights Agent or any
successor Rights Agent shall be a party, or any Person succeeding to the
shareholder services or stock transfer business of the Rights Agent or any
successor Rights Agent, shall be the successor to the Rights Agent under this
Agreement without the execution or filing of any paper or any further act on the
part of any of the parties hereto; provided, however, that such Person would be
eligible for appointment as a successor Rights Agent under the provisions of
Section 21 hereof.

               (b)     In case at any time the name of the Rights Agent shall be
changed and at such time any of the Rights Certificates shall have been
countersigned but not delivered the Rights Agent may adopt the countersignature
under its prior name and deliver Rights Certificates so countersigned; and in
case at that time any of the Rights Certificates shall not have been
countersigned, the Rights Agent may countersign such Rights Certificates either
in its prior name or in its changed name; and in all such cases such Rights
Certificates shall have the full force provided in the Rights Certificates and
in this Agreement.

          Section 20.  Duties of Rights Agent.  The Rights Agent undertakes the
                       ----------------------                                  
duties and obligations, and only the duties and obligations, expressly imposed
by this Agreement (and no implied duties or obligations) upon the following
terms and conditions, by all of which the Company and the holders of Rights
Certificates or beneficial interests in the Rights, by their acceptance thereof,
shall be bound:

               (a)     The Rights Agent may consult with legal counsel (who may
be legal counsel for the Company), and the advice or written opinion of such
counsel shall be full and complete authorization and protection to the Rights
Agent, and the Rights Agent shall incur no liability for or in respect of, any
action taken, suffered or omitted by it in good faith and in accordance with
such advice or opinion.

               (b)     Whenever in the performance of its duties under this
Agreement the Rights Agent shall deem it necessary or desirable that any fact or
matter (including, without limitation, the identity of any Acquiring Person and
the determination of "current market price") be proved or established by the
Company prior to taking, suffering or omitting any action hereunder, such fact
or matter (unless other evidence in respect thereof be herein specifically
prescribed) may be deemed to be conclusively proved and established by a
certificate signed by the Chairman of the Board, the President, any Vice
President, the Treasurer, any Assistant Treasurer, the Secretary or any
Assistant Secretary of the Company and delivered to the Rights Agent; and such
certificate shall be full authorization and protection to the Rights Agent and
the Rights Agent shall incur no liability for or in respect of any action taken,
suffered or omitted in good faith by it under the provisions of this Agreement
in reliance upon such certificate.

                                                                              90
<PAGE>
 
               (c)    The Rights Agent shall be liable hereunder only for its
own gross negligence, bad faith or willful misconduct; provided, however, that
the Rights Agent shall not be liable for special, indirect, incidental or
consequential loss or damage of any kind whatsoever, even if the Rights Agent
has been advised of the likelihood of such loss or damage.

               (d)    The Rights Agent shall not be liable for or by reason of
any of the statements of fact or recitals contained in this Agreement or in the
Rights Certificates or be required to verify the same (except as to its
countersignature on such Rights Certificates), but all such statements and
recitals are and shall be deemed to have been made by the Company only.

               (e)    The Rights Agent shall not be under any liability or
responsibility in respect of the validity of any provision of this Agreement or
the execution and delivery hereof (except the due execution hereof by the Rights
Agent) or in respect of the validity or execution of any Rights Certificate
(except its countersignature thereof); nor shall it be responsible for any
breach by the Company of any covenant or condition contained in this Agreement
or in any Rights Certificate; nor shall it be responsible for any adjustment
required under the provisions of this Agreement or responsible for the manner,
method or amount of any such adjustment or the ascertaining of the existence of
facts that would require any such adjustment (except with respect to the
exercise of Rights evidenced by Rights Certificates after actual notice of any
such adjustment); nor shall it by any act hereunder be deemed to make any
representation or warranty as to the authorization or reservation of any Common
Shares to be issued pursuant to this Agreement or any Rights Certificate or as
to whether any Common Shares or Preferred Shares will, when so issued, be
validly authorized and issued, fully paid and nonassessable.

               (f)    The Company agrees that it will perform, execute,
acknowledge and deliver or cause to be performed, executed, acknowledged and
delivered all such further and other acts, instruments and assurances as may
reasonably be required by the Rights Agent for the carrying out or performing by
the Rights Agent of the provisions of this Agreement.

               (g)    The Rights Agent is hereby authorized and directed to
accept instructions with respect to the performance of its duties hereunder from
any one of the Chairman of the Board, the President, any Vice President, the
Secretary, any Assistant Secretary, the Treasurer or any Assistant Treasurer of
the Company, and to apply to such officers for advice or instructions in
connection with its duties, and such instructions shall be full authorization
and protection for the Rights Agent and the Rights Agent shall incur no
liability for or in respect of any action taken, suffered or omitted to be taken
by it in good faith in accordance with instructions of any such officer. The
Rights Agent may conclusively rely on the most recent instructions provided to
it by any such officer.

               (h)    The Rights Agent and any shareholder, affiliate, director,
officer or employee of the Rights Agent may buy, sell or deal in any of the
Rights or other securities of the Company or become pecuniarily interested in
any transaction in which the Company may be interested, or contract with or lend
money to the Company or otherwise act as fully and freely as though it were not
the Rights Agent under this Agreement and none of such actions shall constitute
a breach of trust. Nothing herein shall preclude the Rights Agent from acting in
any other capacity for the Company or for any other Person or legal entity.

               (i)    The Rights Agent may execute and exercise any of the
rights or powers hereby vested in it or perform any duty hereunder either itself
or by or through its attorneys or agents, and the Rights Agent shall not be
answerable or accountable for any act, default, neglect or misconduct of any
such attorneys or agents or for any loss to the Company or any other Person
resulting from any such act, default, neglect or misconduct, absent gross
negligence, bad faith or willful misconduct in the selection and continued
employment thereof.

               (j)    No provision of this Agreement shall require the Rights
Agent to expend or risk its own funds or otherwise incur any financial liability
in the performance of any of its duties hereunder or in the exercise of its
rights if it believes that repayment of such funds or adequate indemnification
against such risk or liability is not reasonably, assured to it.

               (k)    If, with respect to any Rights Certificate surrendered to
the Rights Agent for exercise or transfer, the certificate attached to the form
of assignment or form of election to purchase, as the case may be, has either
not been completed or indicates an affirmative response to clause 1 and/or 2
thereof, the Rights Agent shall not take any further action with respect to such
requested exercise or transfer without first consulting with the Company.

                                                                              91
<PAGE>
 
          Section 21.  Change of Rights Agent.  The Rights Agent or any
                       ----------------------                          
successor Rights Agent may resign and be discharged from its duties under this
Agreement upon thirty (30) days' prior written notice mailed to the Company and
to each transfer agent of the Common Shares and Preferred Shares by registered
or certified mail, and to the holders of the Rights Certificates by first-class
mail.  The Company may remove the Rights Agent or any successor Rights Agent
upon thirty (30) days' prior written notice mailed to the Rights Agent or
successor Rights Agent, as the case may be, and to each transfer agent of the
Common Shares and Preferred Shares, by registered or certified mail, and to the
holders of the Rights Certificates by first-class mail.  If the Rights Agent
shall resign or be removed or shall otherwise become incapable of acting, the
Company shall appoint a successor to the Rights Agent.  If the Company shall
fail to make such appointment within a period of thirty (30) days after giving
notice of such removal or after it has been notified in writing of such
resignation or incapacity by the resigning or incapacitated Rights Agent or by
the holder of a Rights Certificate (who shall, with such notice, submit his
Rights Certificate for inspection by the Company), then any registered holder of
any Rights Certificate may apply to any court of competent jurisdiction for the
appointment of a new Rights Agent.  Any successor Rights Agent, whether
appointed by the Company or by such a court, shall be (a) a Person organized,
doing business and in good standing under the laws of the United States or of
any state, having a principal office in the State of New York or the
Commonwealth of Pennsylvania, that is authorized by law to exercise shareholder
services and stock. transfer powers and is subject to supervision or examination
by federal or state authority and that has at the time of its appointment as
Rights Agent a combined capital and surplus of at least $50,000,000 or (b) an
Affiliate of any such person.  After appointment, the successor Rights Agent
shall be vested with the same powers, rights, duties and responsibilities as if
it had been originally named as Rights Agent without further act or deed; but
the predecessor Rights Agent shall deliver and transfer to the successor Rights
Agent any property at the time held by it hereunder, and execute and deliver any
further assurance, conveyance, act or deed necessary for the purpose.  Not later
than the effective date of any such appointment, the Company shall file notice
thereof in writing with the predecessor Rights Agent and each transfer agent of
the Common Shares and Preferred Shares and mail a notice thereof in writing to
the registered holders of the Rights Certificates or, prior to the Distribution
Date, to the registered holders of the Common Shares.  In case at the time such
successor Rights Agent shall succeed to the agency and trust created by this
Agreement, any of the Rights Certificates shall have been countersigned but not
delivered, any such successor Rights Agent may adopt the countersignature of a
predecessor Rights Agent and deliver such Rights Certificates so countersigned;
and in case at that time any of the Rights Certificates shall not have been
countersigned, any successor Rights Agent may countersign such Rights
Certificates either in the name of the predecessor or in the name of the
successor Rights Agent; and in all such cases such Rights Certificates shall
have the full force provided in the Rights Certificates and in this Agreement.
Failure to give any notice provided for in this Section 21, however, or any
defect therein, shall not affect the legality or validity of the resignation or
removal of the Rights Agent or the appointment of the successor Rights Agent, as
the case may be.

          Section 22.  Issuance of New Rights Certificates.  Notwithstanding any
                       -----------------------------------                      
of the provisions of this Agreement or of the Rights to the contrary, the
Company may, at its option, issue new Rights Certificates evidencing Rights in
such form as may be approved by its Board of Directors to reflect any adjustment
or change in the Purchase Price and the number or kind or class of shares or
other securities or property purchasable under the Rights Certificates made in
accordance with the provisions of this Agreement.  In addition, in connection
with the issuance, sale or delivery of Common Shares following the Distribution
Date and prior to the redemption or expiration of the Rights, the Company (a)
shall, with respect to Common Shares so issued, sold or delivered pursuant to
the exercise of stock options, stock appreciation rights, grants or awards
outstanding on the Distribution Date under any benefit plan or arrangement for
employees or directors, or upon the exercise, conversion or exchange of
securities outstanding on the Record Date or hereinafter issued by the Company,
and (b) may, in any other case, if deemed necessary or appropriate by the Board
of Directors of the Company, issue Rights Certificates representing the
appropriate number of Rights in connection with such issuance or sale; provided,
however, that (i) no such Rights Certificate shall be issued if, and to the
extent that, the Company shall be advised by counsel that such issuance would
create a significant risk of material adverse tax consequences to the Company or
the Person to whom such Rights Certificate would be issued, and (ii) no such
Rights Certificate shall be issued if, and to the extent that, appropriate
adjustment. shall otherwise have been made in lieu of the issuance thereof.

                                                                              92
<PAGE>
 
          Section 23.  Redemption and Termination.
                       -------------------------- 


               (a)     The Board of Directors of the Company may, at its option,
at any time prior to the earlier of (i) the Close of Business on the tenth day
following a Stock Acquisition Date (or, if the Stock Acquisition Date shall have
occurred prior to the Record Date, the Close of Business on the tenth day
following the Record Date), or (ii) the Close of Business on the Final
Expiration Date, redeem all but not less than all the then outstanding Rights at
a redemption price of $.0l per Right, as such amount may be appropriately
adjusted to reflect any stock split, stock dividend or similar transaction
occurring after the date hereof (such redemption price being hereinafter
referred to as the "Redemption Price") and the Company may, at its option, pay
the Redemption Price either in Common Shares (based on the "current market
price", as defined in Section 11(d)(i) hereof, of the Common Shares at the time
of redemption) or cash; provided, however, if the Board of Directors of the
Company authorizes redemption of the Rights in either of the circumstances set
forth in clauses (i) and (ii) of this proviso, then there must be Continuing
Directors then in office and such authorization shall require the concurrence of
a majority of such Continuing Directors; and provided further, however, that if,
following the occurrence of a Stock Acquisition Date and following the
expiration of the right of redemption hereunder but prior to any Triggering
Event, (i) an Acquiring Person shall have transferred or otherwise disposed of a
number of Common Shares in one transaction or series of transactions, not
directly or indirectly involving the Company or any of its Subsidiaries, which
did not result in the occurrence of a Triggering Event or the Company (with the
approval of the majority of Continuing Directors) shall have issued additional
equity securities, in either instance such that such Person is thereafter a
Beneficial Owner of 20% or less of the outstanding Common Shares, and (ii) there
is no other Acquiring Person immediately following the occurrence of the event
described in clause (i), then the right of redemption shall be reinstated and
thereafter be subject to the provisions of this Section 23. Notwithstanding
anything contained in this Agreement to the contrary, the Rights shall not be
exercisable after the first occurrence of a Section 11(a)(ii) Event until such
time as the Company's right of redemption hereunder has expired.

               (b)     Immediately upon the action of the Board of Directors of
the Company ordering the redemption of the Rights, without any notice, or
further action, the right to exercise the Rights will terminate and the only
right thereafter of the holders of Rights shall be to receive the Redemption
Price for each Right so held. Promptly after the action of the Board of
Directors ordering the redemption of the Rights, the Company shall give notice
of such redemption to the Rights Agent and the holders of the then outstanding
Rights by, in the case of notice to holders, mailing such notice to all such
holders at each holder's last address as it appears upon the registry books of
the Rights Agent or, prior to the Distribution Date, on the registry books of
the Transfer Agent for the Common Shares. Any notice that is mailed in the
manner herein provided shall be deemed given, whether or not the holder receives
the notice. Each such notice of redemption will state the method by which the
payment of the Redemption Price will be made.

          Section 24.  Exchange.
                       -------- 

               (a)     The Board of Directors of the Company may, at its option,
at any time after any Person becomes an Acquiring Person, exchange all or part
of the then outstanding and exercisable Rights (which shall not include Rights
that have become null and void pursuant to the provisions of Section 7(e)
hereof) for Common Shares at an exchange ratio of one Common Share per Right,
appropriately adjusted to reflect any stock split, stock dividend or similar
transaction occurring after the date hereof (such exchange ratio being
hereinafter referred to as the "Exchange Ratio"). Notwithstanding the foregoing,
the Company's Board of Directors shall not be empowered to effect such exchange
at any time after any Person (other than (i) Alfred P. West, Jr., (ii) any
immediate family member of Alfred P. West Jr. who exceeds the 50% Company
ownership threshold solely by reason of a transfer of Common Shares from Alfred
P. West Jr. or his spouse to such immediate family member and who does not
subsequently acquire at least 1% of the Common Shares outstanding from a source
other than Alfred P. West Jr. or his spouse, (iii) the Company, (iv) any
Subsidiary of the Company, (v) any employee benefit plan of the Company or any
such Subsidiary, or (vi) any Person organized, appointed or established by the
Company for or pursuant to the terms of any such plan), together with all
Affiliates and Associates of such Person, becomes the Beneficial Owner of fifty
percent (50%) or more of the Common Shares then outstanding.

                                                                              93
<PAGE>
 
               (b)    Immediately upon the action of the Board of Directors of
the Company ordering the exchange of any Rights pursuant to subsection (a) of
this Section 24 and without any further action and without any notice, the right
to exercise such Rights shall terminate and the only right thereafter of the
holders of such Rights shall be to receive that number of Common Shares equal to
the number of such Rights held by such holder multiplied by the Exchange Ratio.
The Company shall promptly give public notice of any such exchange; provided,
however, that the failure to give, or any defect in, such notice shall not
affect the validity of such exchange. The Company shall promptly notify the
Rights Agent of any such exchange. The Company promptly shall mail a notice of
any such exchange to all of the holders of such Rights at their last addresses
as they appear upon the registry books of the Rights Agent. Any notice which is
mailed in the manner herein provided shall be deemed given, whether or not the
holder receives the notice. Each such notice of exchange will state the method
by which the exchange of the Common Shares for Rights will be effected and, in
the event of any partial exchange, the number of Rights which will be exchanged.
Any partial exchange shall be effected pro rata based on the number of Rights
(other than Rights which have become void pursuant to the provisions of Section
7(e) hereof) held by each holder of Rights.

               (c)    In the event that there shall not be sufficient Common
Shares issued but not outstanding or authorized but issued to permit any
exchange of Rights as contemplated in accordance with this Section 24, the
Company shall take all such action as may be necessary to authorize additional
Common Shares for issuance upon exchange of the Rights.

               (d)    The Company shall not be required to issue fractions of
Common Shares or to distribute certificates which evidence fractional Common
Shares. In lieu of such fractional Common Shares, there shall be paid to the
registered holders of the Rights Certificates with regard to which such
fractional Common Shares would otherwise be issuable, an amount in cash equal to
the same fraction of the current market value of a whole Common Share. For the
purposes of this subsection (d), the current market value of a whole Common
Share shall be the closing price of a Common Share (as determined pursuant to
the second sentence of Section 11(d) hereof) for the Trading Day immediately
prior to the date of exchange pursuant to this Section 24.

          Section 25. Notice of Certain Events.
                      ------------------------ 

               (a)    In case the Company shall propose, at any time after the
Distribution Date, (i) to pay any dividend payable in stock of any class to the
holders of Preferred Shares or to make any other distribution to the holders of
Preferred Shares (other than a regular quarterly dividend out of earnings or
retained earnings of the Company), or (ii) to offer to the holders of Preferred
Shares rights or warrants to subscribe for or to purchase any additional
Preferred Shares or shares of stock of any class or any other securities, rights
or options, or (iii) to effect any reclassification of its Preferred Shares
(other than a reclassification involving only the subdivision of outstanding
Preferred Shares), or (iv) to effect any consolidation or merger into or with
any other Person (other than a Subsidiary of the Company in a transaction which
complies with Section 11(o) hereof), or to effect any sale or other transfer (or
to permit one or more of its Subsidiaries to effect any sale or other transfer),
in one transaction or a series of related transactions, of more than 50% of the
assets or earning power of the Company and its Subsidiaries (taken as a whole)
to any other Person or Persons (other than the Company and/or any of its
Subsidiaries in one or more transactions each of which complies with Section
11(o) hereof), or (v) to effect the liquidation, dissolution or winding up of
the Company, then, in each such case, the Company shall give to the Rights Agent
and to each holder of a Rights Certificate, to the extent feasible and in
accordance with Section 26 hereof, a notice of such proposed action, which shall
specify the record date for the purposes of such stock dividend distribution of
rights or warrants, or the date on which such reclassification, consolidation,
merger, sale, transfer, liquidation, dissolution, or winding up is to take place
and the date of participation therein by the holders of Preferred Shares, if any
such date is to be fixed, and such notice shall be so given in the case of any
action covered by clause (i) or (ii) above at least twenty (20) days prior to
the record date for determining holders of Preferred Shares for purposes of such
action, and in the case of any such other action, at least twenty (20) days
prior, to the date of the taking of such proposed action or the date of
participation therein by the holders of Preferred Shares, whichever shall be the
earlier.

               (b)    Upon the occurrence of a Section 11(a)(ii) Event, (i) the
Company shall as soon as practicable thereafter give to each holder of a Rights
Certificate, to the extent feasible and in accordance with Section 26 hereof, a
notice of the occurrence of such event, which shall specify the event and the
consequences of the event to holders of Rights under Section 11(a)(ii) hereof,
and (ii) all references in the preceding paragraph to Preferred Shares shall be
deemed thereafter to refer to Common Shares and/or, if appropriate, other
securities.

                                                                              94
<PAGE>
 
          Section 26.  Notices.  Notices or demands authorized by this Agreement
                       -------                                                  
to be given or made by the Rights Agent or by the holder of any Rights
Certificate to or on the Company shall be sufficiently given or made if sent by
first-class mail, postage prepaid, addressed (until another address is filed in
writing with the Rights Agent) as follows:

          SEI Investments Company
          One Freedom Valley Drive
          Oaks, Pennsylvania   19456
          Attention: Corporate Secretary

Subject to the provisions of Section 21, any notice or demand authorized by this
Agreement to be given or made by the Company or by the holder of any Rights
Certificate to or on the Rights Agent shall be sufficiently given or made if
sent by first-class mail, postage prepaid, addressed (until another address is
filed in writing with the Company) as follows:

          American Stock Transfer & Trust Company
          40 Wall Street
          New York, NY  10005
          Attention: Corporate Trust Department

Notices or demands authorized by this Agreement to be given or made by the
Company or the Rights Agent to the holder of any Rights Certificate (or, if
prior to the Distribution Date to the holder of certificates representing Common
Shares) shall be sufficiently given or made if sent by first-class mail, postage
prepaid, addressed to such holder at the address of such holder as shown on the
registry books of the Company.

          Section 27.  Supplements and Amendments.
                       -------------------------- 

               (a)     Prior to the Distribution Date and subject to the
penultimate sentence of this Section 27, the Company may, and the Rights Agent
shall, if the Company so directs, supplement or amend any provision of this
Agreement without the approval of any holders of certificates representing
Common Shares. From and after the Distribution Date and subject to the
penultimate sentence of this Section 27, the Company may, and the Rights Agent
shall, if the Company so directs, supplement or amend this Agreement without the
approval of any holders of Rights Certificates in order (i) to cure any
ambiguity, (ii) to correct or supplement any provision contained herein which
may be defective or inconsistent with any other provisions herein, (iii) to
shorten or lengthen any time period hereunder, or (iv) to change or supplement
the provisions hereunder in any manner that the Company may deem necessary or
desirable and that shall not adversely affect the interests of the holders of
Rights Certificates; provided, this Agreement may not be supplemented or amended
to lengthen, pursuant to clause (iii) of this sentence, (A) a time period
relating to when the Rights may be redeemed at such time as the Rights are not
then redeemable, or (B) any other time period unless such lengthening is for the
purpose of protecting, enhancing or clarifying the rights of, and/or the
benefits to, the holders of Rights. Upon the delivery of a certificate from an
appropriate officer of the Company that states that the proposed supplement or
amendment is in compliance with the terms of this Section 27, and if requested
by the Rights Agent, an opinion of counsel, the Rights Agent shall execute such
supplement or amendment. Notwithstanding anything contained in this Agreement,
to the contrary, (i) no supplement or amendment shall be made that changes the
Redemption Price, the Final Expiration Date, the Purchase Price or the number of
Preferred Share Fractions for which a Right is exercisable, (ii) any supplement
or amendment shall be effective only if there are Continuing Directors and shall
require the concurrence of a majority of such Continuing Directors if: (x) such
supplement or amendment occurs on or after the time a Person becomes an
Acquiring Person, or (y) such supplement or amendment occurs on or after the
date of a change (resulting from a proxy or consent solicitation) in a majority
of the directors in office at the commencement of such solicitation if any
Person who is a participant in such solicitation has stated (or, if upon the
commencement of such solicitation, a majority of the Board of Directors of the
Company has determined in good faith) that such Person (or any of its Affiliates
or Associates) intends to take, or may consider taking, any action that would
result in such Person becoming an Acquiring Person or that would cause the
occurrence of a Triggering Event unless, concurrent with such solicitation, such
Person (or one or more of its Affiliates or Associates) is making a cash tender
offer pursuant to a Schedule 14D-1 (or any successor form) filed with the
Securities and Exchange Commission for all outstanding Common Shares not
beneficially owned by such Person (or by its Affiliates or Associates), and
(iii) no supplement or amendment that changes or increases the obligations and
duties of the Rights Agent under this Agreement shall be effective without the
consent of the Rights Agent. Prior to the Distribution Date, the interests of
the beneficial owners of Rights shall be deemed coincident with the interests of
the holders of Common Shares.

                                                                              95
<PAGE>
 
          Section 28.  Successors.  All the covenants and provisions of this
                       ----------                                           
Agreement by or for the benefit of the Company or the Rights Agent shall bind
and inure to the benefit of their respective successors and assigns hereunder.

          Section 29.  Determinations and Actions by the Board of Directors,
                       -----------------------------------------------------
etc.  For all purposes of this Agreement, any calculation of the number of
- - ----                                                                      
Common Shares outstanding at any particular time, including for purposes of
determining the particular percentage of such outstanding Common Shares of which
any Person is the Beneficial Owner, shall be made in accordance with the last
sentence of Rule 13d-3(d)(1)(i) of the General Rules and Regulations under the
Exchange Act.  The Board of Directors of the Company (with, where specifically
provided for herein, the concurrence of the Continuing Directors) shall have the
exclusive power and authority to administer this Agreement and to exercise all
rights and powers specifically granted to the Board (with, where specifically
provided for herein, the concurrence of the Continuing Directors) or to the
Company, or as may be necessary or advisable in the administration of this
Agreement, including, without limitation, the right and power to (i) interpret
the provisions of this Agreement, and (ii) make all determinations deemed
necessary or advisable for the administration of this Agreement (including a
determination to redeem or not redeem the Rights or to amend or supplement the
Agreement).  All such actions, calculations, interpretations and determinations
(including, for purposes of clause (y) below, all omissions with respect to the
foregoing), that are done or made by the Board (with, where specifically
provided for herein, the concurrence of the Continuing Directors) in good faith,
shall (x) be final, conclusive and binding on the Company, the Rights Agent, the
holders of the Rights and all other Persons, and (y) not subject the Board or
the Continuing Directors to any liability to the holders of the Rights.  For
purposes of this Agreement, the Rights Agent shall be allowed to assume that all
such actions, calculations, interpretations and determinations have been done or
made by the Board in good faith.

          Section 30.  Benefits of this Agreement.  Nothing in this Agreement
                       --------------------------                            
shall be construed to give to any Person other than the Company, the Rights
Agent and the registered holders of the Rights Certificates (and, prior to the
Distribution Date, registered holders of the Common Shares) any legal or
equitable right, remedy or claim under this Agreement; but this Agreement shall
be for the sole and exclusive benefit of the Company, the Rights Agent and the
registered holders of the Rights Certificates (and, prior to the Distribution
Date, registered holders of the Common Shares).

          Section 31.  Severability.  If any term, provision, covenant or
                       ------------                                      
restriction of this Agreement is held by a court of competent jurisdiction or
other authority to be invalid, void or unenforceable for any purpose or under
any set of circumstances or as applied to any Person, such invalid, void or
unenforceable term, provision, covenant or restriction shall continue in effect
to the maximum extent possible for all other purposes, under all other
circumstances and as applied to all other Persons; and the remainder of the
terms, provisions, covenants and restrictions of this Agreement shall remain in
full force and effect and shall in no way be affected, impaired or invalidated;
provided, however, that notwithstanding anything in this Agreement to the
contrary, if any such term, provision, covenant or restriction is held by such
court or authority to be invalid, void or unenforceable and the Board of
Directors of the Company determines in its good faith judgment that severing the
invalid language from this Agreement would adversely affect the purpose or
effect of this Agreement, the right of redemption set forth in Section 23 hereof
shall be reinstated and shall not expire until the Close of Business on the
tenth day following the date of such determination by the Board of Directors.
Without limiting the foregoing, if any provisions requiring that a determination
be made by less than the entire Board (or at a time or with the concurrence of a
group of directors consisting of less than the entire Board) is held by a court
of competent jurisdiction or other authority to be invalid, void or
unenforceable, such determination shall then be made by the Board in accordance
with applicable law and the Company's Articles of Incorporation and by-laws.

          Section 32.  Governing Law.  This Agreement, each Right and each
                       -------------                                      
Rights Certificate issued hereunder shall be deemed to be a contract made under
the laws of the Commonwealth of Pennsylvania and for all purposes shall be
governed by and construed in accordance with the laws of such jurisdiction
applicable to contracts made and to be performed entirely within such
jurisdiction; except that all provisions regarding the rights, duties and
obligations of the Rights Agent shall be governed by and construed in accordance
with the laws of the State of New York applicable to contracts made and to be
performed entirely within such jurisdiction.

          Section 33.  Counterparts.  This Agreement may be executed in any
                       ------------                                        
number of counterparts and each of such counterparts shall for all purposes be
deemed to be an original, and all such counterparts shall together constitute
but one and the same instrument.

                                                                              96
<PAGE>
 
          Section 34.  Descriptive Headings.  Descriptive headings of the
                       --------------------                              
several Sections of this Agreement are inserted for convenience only and shall
not control or affect the meaning or construction of any of the provisions
hereof.

     IN WITNESS WHEREOF, the parties hereto have caused this Rights Agreement to
be duly executed as of the day and year first above written.

                              SEI INVESTMENTS COMPANY


                              By     /s/ Henry H. Greer
                                   -------------------------------------
                              Name:      Henry H. Greer
                              Title:     President and Chief Operating Officer
                                                                      

                              AMERICAN STOCK TRANSFER & TRUST
                                    COMPANY


                              By     /s/ Herbert J. Lemmer
                                   -------------------------------------
                              Name:      Herbert J. Lemmer
                              Title:     Vice President

                                                                              97
<PAGE>
 
                                                                       EXHIBIT A
                                                                       ---------

                    RESOLUTION OF THE BOARD OF DIRECTORS OF
                            SEI INVESTMENTS COMPANY
                         ESTABLISHING AND DESIGNATING
                SERIES A JUNIOR PARTICIPATING PREFERRED SHARES
                   AS A SERIES OF THE SERIES PREFERRED STOCK


          RESOLVED, that pursuant to the authority expressly vested in the Board
of Directors of SEI Investments Company (the "Corporation") by Article FIFTH of
the Articles of Incorporation of the Corporation, the Board of Directors hereby
fixes and determines the voting rights, designations, preferences,
qualifications, privileges, limitations, restrictions, options, conversion
rights and other special or relative rights of the first series of the Series
Preferred Stock, par value $.05 per share, which shall consist of 50,000 shares
and shall be designated as Series A Junior Participating Preferred Shares (the
"Series A Preferred Shares").

Special Terms of the Series A Preferred Shares
- - ----------------------------------------------

     Section 1.  Dividends and Distributions.
                 --------------------------- 

          (a)    The rate of dividends payable per share of Series A Preferred
Shares on the first day of January, April, July and October in each year or such
other quarterly payment date as shall be specified by the Board of Directors
(each such date being referred to herein as a "Quarterly Dividend Payment
Date"), commencing on the first Quarterly Dividend Payment Date after the first
issuance of a share or fraction of a share of the Series A Preferred Shares,
shall be (rounded to the nearest cent) equal to the greater of (i) $160 or (ii),
subject to the provision for adjustment hereinafter set forth, 2,000 times the
aggregate per share amount of all cash dividends, and 2,000 times the aggregate
per share amount (payable in cash, based upon the fair market value at the time
the non-cash dividend or other distribution is declared or paid as determined in
good faith by the Board of Directors) of all non-cash dividends or other
distributions other than a dividend payable in shares of Common Stock or a
subdivision of the outstanding shares of Common Stock (by reclassification or
otherwise), declared on the Common Stock, $.0l par value per share, of the
Corporation since the immediately preceding Quarterly Dividend Payment Date, or,
with respect to the first Quarterly Dividend Payment Date, since the first
issuance of any share or fraction of a share of the Series A Preferred Shares.
Dividends on the Series A Preferred Shares shall be paid out of funds legally
available for such purpose.  In the event the Corporation shall at any time
after December 10, 1998 (the "Rights Declaration Date") (i) declare any dividend
on Common Stock payable in shares of Common Stock, (ii) subdivide the
outstanding shares of Common Stock, or (iii) combine the outstanding shares of
Common Stock into a smaller number of shares, then in each such case the amounts
to which holders of Series A Preferred Shares were entitled immediately prior to
such event under clause (ii) of the preceding sentence shall be adjusted by
multiplying each such amount by a fraction the numerator of which is the number
of shares of Common Stock outstanding immediately after such event and the
denominator of which is the number of shares of Common Stock that were
outstanding immediately prior to such event.

                 (b)   Dividends shall begin to accrue and be cumulative on
outstanding Series A Preferred Shares from the Quarterly Dividend Payment Date
next preceding the date of issue of such Series A Preferred Shares, unless the
date of issue of such shares is prior to the record date for the first Quarterly
Dividend Payment Date, in which case dividends on such shares shall begin to
accrue from the date of issue of such shares, or unless the date of issue is a
Quarterly Dividend Payment Date or is a date after the record date for the
determination of holders of Series A Preferred Shares entitled to receive a
quarterly dividend and before such Quarterly Dividend Payment Date, in either of
which events such dividends shall begin to accrue and be cumulative from such
quarterly Dividend Payment Date. Accrued but unpaid dividends shall not bear
interest. Dividends paid on the Series A Preferred Shares in an amount less than
the total amount of such dividends at the time accrued and payable on such
shares shall be allocated pro rata on a share-by-share basis among all such
shares at the time outstanding.

          Section 2.   Voting Rights.  In addition to any other voting rights
                       -------------                                         
required by law, the holders of Series A Preferred Shares shall have the
following voting rights:

                                                                              98
<PAGE>
 
               (a)    Subject to the provision for adjustment hereinafter set
forth, each Series A Preferred Share shall entitle the holder thereof to 2,000
votes on all matters submitted to a vote of the shareholders of the Corporation.
In the event the Corporation shall at any time after the Rights Declaration Date
(i) declare any dividend on Common Stock payable in shares of Common Stock, (ii)
subdivide the outstanding shares of Common Stock, or (iii) combine the
outstanding shares of Common Stock into a smaller number of shares, then in each
such case the number of votes per share to which holders of Series A Preferred
Shares were entitled immediately prior to such event shall be adjusted by
multiplying such number by a fraction the numerator of which is the number of
shares of Common Stock outstanding immediately after such event and the
denominator of which is the number of shares of Common Stock that were
outstanding immediately prior to such event.

               (b)    In the event that dividends upon the Series A Preferred
Shares shall be in arrears to an amount equal to six full quarterly dividends
thereon, the holders of such Series A Preferred Shares shall become entitled to
the extent hereinafter provided to vote noncumulatively at all elections of
directors of the Corporation, and to receive notice of all shareholders',
meetings to be held for such purpose. At such. meetings, to the extent that
directors are being elected, the holders of such Series A Preferred Shares
voting as a class shall be entitled solely to elect two members of the Board of
Directors of the Corporation; and all other directors of the Corporation shall
be elected by the other shareholders of the Corporation entitled to vote in the
election of directors. Such voting rights of the holders of such Series A
Preferred Shares shall continue until all accumulated and unpaid dividends
thereon shall have been paid or funds sufficient therefor set aside, whereupon
all such voting rights of the holders of shares of such series shall cease,
subject to being again revived from time to time upon the reoccurrence of the
conditions above described as giving rise thereto.

               At any time when such right to elect directors separately as a
class shall have so vested, the Corporation may, and upon the written request of
the holders of record of not less than 20% of the then outstanding total number
of shares of all the Series A Preferred Shares having the right to elect
directors in such circumstances shall, call a special meeting of holders of such
Series A Preferred Shares for the election of directors. In the case of such a
written request, such special meeting shall be held within 90 days after the
delivery of such request, and, in either case, at the place and upon the notice
provided by law and in the By-laws of the Corporation; provided, that the
Corporation shall not be required to call such a special meeting if such request
is received less than 120 days before the date fixed for the next ensuing annual
or special meeting of shareholders of the Corporation. Upon the mailing of the
notice of such special meeting to the holders of such Series A Preferred Shares,
or, if no such meeting be held, then upon the mailing of the notice of the next
annual or special meeting of shareholders for the election of directors, the
number of directors of the Corporation shall, ipso facto, be increased to the
extent, but only to the extent, necessary to provide sufficient vacancies to
enable the holders of such Series A Preferred Shares to elect the two directors
hereinabove provided for, and all such vacancies shall be filled only by vote of
the holders of such Series A Preferred Shares as hereinabove provided. Whenever
the number of directors of the Corporation shall have been increased, the number
as so increased may thereafter be further increased or decreased in such manner
as may be permitted by the By-laws and without the vote of the holders of Series
A Preferred Shares, provided that no such action shall impair the right of the
holders of Series A Preferred Shares to elect and to be represented by two
directors as herein provided.

               So long as the holders of Series A Preferred Shares are entitled
hereunder to voting rights, any vacancy in the Board of Directors caused by the
death or resignation of any director elected by the holders of Series A
Preferred Shares, shall, until the next meeting of shareholders for the election
of directors, in each case be filled by the remaining director elected by the
holders of Series A Preferred Shares having the right to elect directors in such
circumstances.

               Upon termination of the voting rights of the holders of any
series of Series A Preferred Shares the terms of office of all persons who shall
have been elected directors of the Corporation by vote of the holders of Series
A Preferred Shares or by a director elected by such holders shall forthwith
terminate.

               (c)    Except as otherwise provided herein, in the Articles of
Incorporation of the Corporation or by law, the holders of Series A Preferred
Shares and the holders of Common Stock (and the holders of shares of any other
series or class entitled to vote thereon) shall vote together as one class on
all matters submitted to a vote of shareholders of the Corporation.

          Section 3.  Reacquired Shares.  Any Series A Preferred Shares
                      -----------------                                
purchased or otherwise acquired by the Corporation in any manner whatsoever
shall be retired and canceled promptly after the acquisition thereof.  All such
shares shall upon their cancellation become authorized but unissued Series
Preferred Stock and may be reissued as part of a new series of Series Preferred
Stock to be created by resolution or resolutions of the Board of Directors.

                                                                              99
<PAGE>
 
          Section 4.  Liquidation, Dissolution or Winding Up.  In the event of
                      --------------------------------------                  
any voluntary or involuntary liquidation, dissolution or winding up of the
Corporation, the holders of Series A Preferred Shares shall be entitled to
receive the greater of (a) $100.00 per share, plus accrued dividends to the date
of distribution, whether or not earned or declared, or (b) an amount per share,
subject to the provision for adjustment hereinafter set forth, equal to 2,000
times the aggregate amount to be distributed per share to holders of Common
Stock.  In the event the Corporation shall at any time after the Rights
Declaration Date (i) declare any dividend on Common Stock payable in shares of
Common Stock, (ii) subdivide the outstanding shares of Common Stock, or (iii)
combine the outstanding shares of Common Stock into a smaller number of shares,
then in each such case the amount to which holders of Series A Preferred Shares
were entitled immediately prior to such event pursuant to clause (b) of the
preceding sentence shall be adjusted by multiplying such amount by a fraction
the numerator of which is the number of shares of Common Stock outstanding
immediately after such event and the denominator of which is the number of
shares of Common Stock that were outstanding immediately prior to such event.

          Section 5.  Consolidation, Merger, etc.  In case the Corporation shall
                      --------------------------                                
enter into any consolidation, merger, combination or other transaction in which
the shares of Common Stock are exchanged for or changed into other stock or
securities, cash and/or any other property, then in any such case the Series A
Preferred Shares shall at the same time be similarly exchanged or changed in an
amount per share (subject to the provision for adjustment hereinafter set forth)
equal to 2,000 times the aggregate amount of stock, securities, cash and/or any
other property (payable in kind), as the case may be, into which or for which
each share of Common Stock is changed or exchanged.  In the event the
Corporation shall at any time after the Rights Declaration Date (i) declare any
dividend on Common Stock payable in shares of Common Stock, (ii) subdivide the
outstanding shares of Common Stock, or (iii) combine the outstanding shares of
Common Stock into a smaller number of shares, then in each such case the amount
set forth in the preceding sentence with respect to the exchange or change of
shares of Series A Preferred Shares shall be adjusted by multiplying such amount
by a fraction the numerator of which is the number of shares of Common Stock
outstanding immediately, after such event and the denominator of which is the
number of shares of Common Stock that were outstanding immediately, prior to
such event.

          Section 6.  No Redemption.  The Series A Preferred Shares shall, not
                      -------------                                           
be redeemable.

          Section 7.  Ranking.  The Series A Preferred Shares shall rank junior
                      -------                                                  
to all other series of the Corporation's Series Preferred Stock as to the
payment of dividends and the distribution of assets, unless the terms of any
such series shall provide otherwise.

          Section 8.  Fractional Shares.  Series A Preferred Shares may be
                      -----------------                                   
issued in fractions of a share which shall entitle the holder, in proportion to
such holder's fractional shares, to exercise voting rights, receive dividends,
participate in distributions and to have the benefit of all other rights of
holders of Series A Preferred Shares.

                                                                             100
<PAGE>
 
                                                                       EXHIBIT B
                                                                       ---------



[Form of Rights Certificate]



Certificate No.  R-_________________________ Rights



     NOT EXERCISABLE AFTER DECEMBER 19, 2008 OR AFTER EARLIER REDEMPTION BY THE
     COMPANY.  THE RIGHTS ARE SUBJECT TO REDEMPTION, AT THE OPTION OF THE
     COMPANY, AT $.0l PER RIGHT ON THE TERMS SET FORTH IN THE RIGHTS AGREEMENT.
     UNDER CERTAIN CIRCUMSTANCES, RIGHTS BENEFICIALLY OWNED BY AN ACQUIRING
     PERSON OR AN AFFILIATE OR ASSOCIATE OF AN ACQUIRING PERSON (AS SUCH TERMS
     ARE DEFINED IN THE RIGHTS AGREEMENT) AND ANY SUBSEQUENT HOLDER OF SUCH
     RIGHTS MAY BECOME NULL AND VOID.  [THE RIGHTS REPRESENTED BY THIS RIGHTS
     CERTIFICATE ARE OR WERE BENEFICIALLY OWNED BY A PERSON WHO WAS OR BECAME AN
     ACQUIRING PERSON OR AN AFFILIATE OR ASSOCIATE OF AN ACQUIRING PERSON (AS
     SUCH TERMS ARE DEFINED IN THE RIGHTS AGREEMENT).  ACCORDINGLY, THIS RIGHTS
     CERTIFICATE AND THE RIGHTS REPRESENTED HEREBY MAY BECOME NULL AND VOID IN
     THE CIRCUMSTANCES SPECIFIED IN SECTION 7(e) OF SUCH AGREEMENT.]*


____________________
 .    The bracketed portion of the legend shall be inserted only if applicable
and shall replace the preceding sentence.
                                                                         101
<PAGE>
 
                         .    SEI INVESTMENTS COMPANY
                                        
                              RIGHTS CERTIFICATE


          This certifies that _____________________, or registered assigns, is 
the registered owner of the number of Rights set forth above, each of which
entitles the owner thereof, subject to the terms, provisions and conditions of
the Rights Agreement, dated as of December 10, 1998 (the "Rights Agreement"),
between SEI Investments Company, a Pennsylvania corporation (the "Company"), and
American Stock Transfer & Trust Company, a New York corporation (the "Rights
Agent"), to purchase from the Company at any time prior to 5:00 P.M.
(Philadelphia time) on December 19, 2008 at the office or offices of the Rights
Agent designated for such purpose, or its successors as Rights Agent, one four-
hundredths of a fully paid, nonassessable Series A Junior Participating
Preferred Share (the "Preferred Share") of the Company, at a purchase price (the
"Purchase Price") of $500 per one two-thousandths of a Preferred Share (such
fraction, a "Preferred Share Fraction"), upon presentation and surrender of this
Rights Certificate with the Form of Election to Purchase and related Certificate
duly executed. Except as provided in Sections 11(q) and 13(e) of the Rights
Agreement, the Purchase Price shall be paid at the option of the Company, in
cash or Common Stock of the Company (the "Common Shares") having an equivalent
value. The number of Rights evidenced by this Rights Certificate (and the number
of Preferred Share Fractions that may be purchased upon exercise thereof) set
forth above, and the Purchase Price per Preferred Share Fraction set forth
above, are the number and Purchase Price as of December 10, 1998, based on the
Preferred Shares as constituted at such date.

          Except as otherwise provided in the Rights Agreement, upon the
occurrence of any Section 11(a)(ii) Event (as such term is defined in the Rights
Agreement), if the Rights evidenced by this Rights Certificate are beneficially
owned by (i) an Acquiring Person or Affiliate or Associate of any Acquiring
Person (as such terms are defined in the Rights Agreement), (ii) a transferee of
any Acquiring Person (or any such Affiliate or Associate) who becomes a
transferee after the Acquiring Person becomes such, or (iii) under certain
circumstances specified in the Rights Agreement, a transferee of a person who,
after such transfer, became an Acquiring Person, or an Affiliate or Associate of
an Acquiring Person, such Rights shall become null and void and no holder hereof
shall have any right with respect to such Rights from and after the occurrence
of any such Section 11(a)(ii) Event.

          As provided in the Rights Agreement, the Purchase Price and the number
and kind of Preferred Shares or other securities that may be purchased upon the
exercise of the Rights evidenced by this Rights Certificate are subject to
modification and adjustment upon the happening of certain events, including
Triggering Events and a Section 11(a)(ii) Event.

          This Rights Certificate is subject to all of the terms, covenants and
restrictions of the Rights Agreement, which terms, covenants and restrictions
are hereby incorporated herein by reference and made a part hereof and to which
Rights Agreement reference is hereby made for a full description of the rights,
limitations of rights, obligations, duties and immunities hereunder of the
Rights Agent, the Company and the holders of the Rights Certificates, which
limitations of rights include the temporary suspension of the exercisability of
such Rights under the specific circumstances set forth in the Rights Agreement.
Copies of the Rights Agreement are on file at the above-mentioned office of the
Rights Agent and are also available upon written request to the Company.

          This Rights Certificate, with or without other Rights Certificates,
upon surrender at the office of the Rights Agent designated for such purpose,
may be exchanged for another Rights Certificate or Rights Certificates of like
tenor and date evidencing Rights entitling the holder to purchase a like
aggregate number of Preferred Share Fractions as the Rights evidenced by the
Rights Certificate or Rights Certificates surrendered shall have entitled such
holder to purchase.  If this Rights Certificate shall be exercised in part, the
holder shall be entitled to receive upon surrender hereof another Rights
Certificate or Rights Certificates for the number of whole Rights not exercised.

          Subject to the provisions of the Rights Agreement, the Rights
evidenced by this Certificate may be redeemed by the Company at its option at a
redemption price of $.0l per Right at any time prior to the earlier of the Close
of Business (as such term is defined in the Rights Agreement) on (i) the tenth
day following the Stock Acquisition Date (as such time period may be extended
pursuant to the Rights Agreement), and (ii) the Final Expiration Date.  Under
certain circumstances set forth in the Rights Agreement, the decision to redeem
shall require the concurrence of a majority of the Continuing Directors.

                                                                             102
<PAGE>
 
          No fractional Preferred Shares will be issued upon the exercise of any
Right or Rights evidenced hereby (other than fractions which are integral
multiples of a Preferred Share, which may, as the election of the Company, be
evidenced by depositary receipts), but in lieu thereof a cash payment will be
made, as provided in the Rights Agreement.

          No holder of this Rights Certificate shall be entitled to vote or
receive dividends or be deemed for any purpose the holder of Preferred Shares or
of any other securities of the Company (including Common Shares) that may at any
time be issuable on the exercise hereof, nor shall anything contained in the
Rights Agreement or herein be construed to confer upon the holder hereof, as
such, any of the rights of a shareholder of the Company or any right to vote for
the election of directors or upon any matter submitted to shareholders at any
meeting thereof, or to give or withhold consent to any corporate action, or, to
receive notice of meetings or other actions affecting shareholders (except as
provided in the Rights Agreement), or to receive dividends or subscription
rights, or otherwise, until the Right or Rights evidenced by this Rights
Certificate shall have been exercised as provided in the Rights Agreement.

          This Rights Certificate shall not be valid or obligatory for any
purpose until it shall have been countersigned by the Rights Agent.

          WITNESS the facsimile signature of the proper officers of the Company
and its corporate seal.

Dated as of  _____________________,

ATTEST                                  SEI INVESTMENTS COMPANY


                                        By
___________________________
Secretary                               Title:


Countersigned

AMERICAN STOCK TRANSFER & TRUST COMPANY


By
  Authorized Signature

                                                                             103
<PAGE>
 
        [Form of Reverse Side of Rights Certificate]


                              FORM OF ASSIGNMENT
                              ------------------

               (To be executed by the registered holder if such
              holder desires to transfer the Rights Certificate.)


FOR VALUE RECEIVED
hereby sells, assigns and transfers unto

                 (Please print name and address of transferee)

this Rights Certificate, together with all right, title and interest therein,
and does hereby irrevocably constitute and appoint Attorney, to transfer the
within Rights Certificate on the books of the within-named Company, with full
power of substitution.

Dated: _____________________, __________.


                                                  Signature

Signature Guaranteed:

                                  Certificate
                                  -----------

          The undersigned hereby certifies by checking the appropriate boxes
     that:

          (1)  this Rights Certificate [ ] is [ ] is not being sold, assigned
and transferred by or on behalf of a Person who is or was an Acquiring Person or
an Affiliate or Associate of any such Acquiring Person as such terms are defined
pursuant to the Rights Agreement);

          (2)  after due inquiry and to the best knowledge of the undersigned,
it [ ] did [ ] did not acquire the Rights evidenced by this Rights Certificate
from any Person who is, was or subsequently became an Acquiring Person or an
Affiliate or Associate of an Acquiring Person.

Dated: _____________________, __________.

                                                  Signature

Signature Guaranteed:

     NOTICE

     The signatures to the foregoing Assignment and Certificate must correspond
to the name as written upon the face of this Rights Certificate in every
particular, without alteration or enlargement or any change whatsoever.

                                                                             104
<PAGE>
 
                         FORM OF ELECTION TO PURCHASE

                 (To be executed if holder desires to exercise
                Rights represented by the Rights Certificate.)

To:  SEI INVESTMENTS COMPANY:

          The undersigned hereby irrevocably elects to exercise
____________________ Rights represented by this Rights Certificate to purchase
the Preferred Shares issuable upon the exercise of the Rights (or Common Shares
or such other securities of the Company or of any other person that may be
issuable upon the exercise of the Rights) and requests that certificates for
such shares be issued in the name of and delivered to:

Please insert social security
or other identifying number

                        (Please print name and address)

          If such number of Rights shall not be all the Rights evidenced by this
Rights Certificate, a new Rights Certificate for the balance of such Rights
shall be registered in the name of and delivered to:

Please insert social security
or other identifying number

                        (Please print name and address)


Dated:  _______________________, 


                                   Signature


Signature Guaranteed:

                                                                             105
<PAGE>

Certificate
- - -----------

          The undersigned hereby certifies by checking the appropriate boxes
that

          (1)  the Rights evidenced by this Rights Certificate [ ] are [ ]
are not being exercised by or on behalf of a Person who is or was an Acquiring
Person or an Affiliate or Associate of any such Acquiring Person (as such terms
are defined pursuant to the Rights Agreement);

          (2)  after, due inquiry and to the best knowledge of the undersigned,
it [ ] did [ ] did not acquire the Rights evidenced by this Rights
Certificate from any Person who is, was or became an Acquiring Person or an
Affiliate or Associate of an Acquiring Person.

Dated:  ______________________, _________

                                   Signature

Signature Guaranteed:


                                    NOTICE
                                    ------

          The signatures to the foregoing Election to Purchase and Certificate
must correspond to the name as written upon the face of this Rights Certificate
in every particular, without alteration or enlargement or any change whatsoever.

                                                                             106
<PAGE>
 
                                                            EXHIBIT C
                                                            ---------


                         SUMMARY OF RIGHTS TO PURCHASE
                               PREFERRED SHARES


          On December 10, 1998 the Board of Directors of SEI Investments Company
(the "Company") declared a dividend distribution of one Right for each
outstanding share of Common Stock, $.0l par value (each, a "Common Share") of
the Company to shareholders of record at the close of business on December 19,
1999.  Each Right entitles the registered holder to purchase from the Company a
unit consisting of one two-thousandths of a share (a "Unit") of the Series A
Junior Participating Preferred Shares, par value $.05 per share, of the Company
(the "Preferred Shares"), or a combination of securities and assets of
equivalent value, at a Purchase Price of $500 per Unit, subject to adjustment.
The description and terms of the Rights are set forth in a Rights Agreement (the
"Rights Agreement") between the Company and American Stock Transfer & Trust
Company, as Rights Agent.

          Initially, ownership of the Rights will be evidenced by the Common
Share certificates representing shares then outstanding, and no separate Rights
Certificates will be distributed.  The Rights will separate from the Common
Shares and a Distribution Date will occur upon the earlier of (i) 10 days
following a public announcement that a person or group of affiliated or
associated persons (an "Acquiring Person") is the beneficial owner of more than
20% of the outstanding Common Shares (the "Stock Acquisition Date"), or (ii) the
close of business on such date as may be fixed by the Board of Directors, which
date shall not be more than 65 days following the commencement of a tender offer
or exchange offer that would result in a person or group beneficially owning 20%
or more of the outstanding Common Shares.  Until the Distribution Date, (i) the
Rights will be evidenced by the Common Share certificates and will be
transferred with and only with such Common Share certificates, (ii) new Common
Share certificates issued after December 19, 1999 will contain a notation
incorporating the Rights Agreement by reference and (iii) the surrender for
transfer of any certificates for Common Shares outstanding will also constitute
the transfer of the Rights associated with the Common Shares represented by such
certificate.

          The Rights are not exercisable until the Distribution Date and will
expire at the close of business on December 19, 2008, unless earlier redeemed by
the Company as described below or unless a transaction under Section 13(d) of
the Rights Agreement has occurred.

          As soon as practicable after the Distribution Date, Rights
Certificates will be mailed to holders of record of the Common Shares as of the
close of business on the Distribution Date and, thereafter, the separate Rights
Certificates alone will represent the Rights.  Except as otherwise determined by
the Board of Directors, and except in connection with the exercise of employee
stock options or stock appreciation rights or under any other benefit plan for
employees or directors or in connection with the exercise of warrants or
conversion of convertible securities, only Common Shares issued after December
19, 1999 and prior to the Distribution Date will be issued with Rights.

          Except in the circumstances described below, after the Distribution
Date each Right will be exercisable into one two-thousandths of a Preferred
Share (a "Preferred Share Fraction").  Each Preferred Share Fraction carries
voting and dividend rights that are intended to produce the equivalent of one
Common Share.  The voting and dividend rights of the Preferred Shares are
subject to adjustment in the event of dividends, subdivisions and combinations
with respect to the Common Shares of the Company.  In lieu of issuing
certificates for Preferred Share Fractions which are less than an integral
multiple of one Preferred Share (i.e. 2,000 Preferred Share Fractions), the
Company may pay cash representing the Current market value of' the Preferred
Share Fractions.

          In the event that at any time following the Stock Acquisition Date,
(i) the Company is the surviving corporation in a merger with an Acquiring
Person and its Common Shares remain outstanding, (ii) a Person becomes the
beneficial owner of more than 50% of the then outstanding Common Shares other
than pursuant to a tender offer that provides fair value to all shareholders,
(iii) a person has acquired since December 19, 1998 beneficial ownership of 20%
or more of the Common Shares then outstanding, (iv) an Acquiring Person engages
in one or more "self-dealing" transactions as set forth in the Rights Agreement,
or (v) during such time as there is an Acquiring Person an event occurs that
results in such Acquiring Person's ownership interest being increased by more
than 1% (e.g., a reverse stock split), each holder of a Right will thereafter
have the right to receive, upon exercise, Common Shares (or, in certain
circumstances, cash, property or other securities of the Company) having a value
equal to two times the exercise price of the Right.  In lieu of requiring
payment of the Purchase Price upon exercise of the Rights following any such
event, the Company may permit the holders simply to surrender the Rights, in
which event they will be entitled to receive Common Shares (and other property,
as the

                                                                             107
<PAGE>
 
case may be) with a value of 50% of what could be purchased by payment of the
full Purchase Price.  Notwithstanding any of the foregoing, following the
occurrence of any of the events set forth in clauses (i), (ii), (iii) or (iv) of
this paragraph, all Rights that are, or (under certain circumstances specified
in the Rights Agreement) were, beneficially owned by any Acquiring Person who
was involved in the transaction giving rise to any such event will be null and
void.  However, Rights are not exercisable following the occurrence of any of
the events set forth above until such time as the Rights are no longer
redeemable by the Company as set forth below.

          For example, at an exercise price of $500 per Right, each Right not
otherwise voided following an event set forth in the preceding paragraph would
entitle its holder to purchase $1,000 worth of Common Shares (or other
consideration, as noted above) for $500. Assuming that the Common Shares had a
per share value of $250 at such time, the holder of each valid Right would be
entitled to purchase four Common Shares for $500.  Alternatively, the Company
could permit the holder to surrender each Right in exchange for stock or cash
equivalent to two Common Shares (with a value of $500) without the payment of
any consideration other than the surrender of the Right.

          In the event that, at any time following the Stock Acquisition Date,
(i) the Company is acquired in a merger or other business combination
transaction in which the Company is not the surviving corporation (other than a
merger that is described in, or that follows a tender offer or exchange offer
described in, the second preceding paragraph), or (ii) 50% or more of the
Company's assets or earning power is sold or transferred, each holder of a Right
(except Rights that previously have been voided as set forth above) shall
thereafter have the right to receive, upon exercise, common shares of the
Acquiring company having a value equal to two times the exercise price of the
Right.  Again, provision is made to permit surrender of the Rights in exchange
for one-half of the value otherwise purchasable.  The events set forth in this
paragraph and in the second preceding paragraph are referred to as the
"Triggering Events."

          The Purchase Price payable, and the number of Units of Preferred
Shares or other securities or property issuable upon exercise of the Rights are
subject to adjustment from time to time to prevent dilution (i) in the event of
a stock dividend on, or a subdivision, combination or reclassification of, the
Preferred Shares, (ii) if holders of the Preferred Shares are granted certain
rights or warrants to subscribe for Preferred Shares or convertible securities
at less than the current market price of the Preferred Shares, or (iii) upon the
distribution to holders of the Preferred Shares of evidences of indebtedness or
assets (excluding regular quarterly dividends) or of subscription rights or
warrants (other than those referred to above).

          With certain exceptions, no adjustment in the Purchase Price will be
required until cumulative adjustments amount to at least 1% of the Purchase
Price.  No fractional Units will be issued and, in lieu thereof, an adjustment
in cash will be made based on the market price of the Preferred Shares on the
last trading date prior to the date of exercise.

          At any time until ten days following the Stock Acquisition Date, the
Company may redeem the Rights in whole, but not in part, at a price of $.0l per
Right.  That ten day redemption period may be extended by the Board of Directors
so long as the Rights are still redeemable.  Under certain circumstances set
forth in the Rights Agreement, the decision to redeem will require the
concurrence of a majority of the Continuing Directors.  Immediately upon the
action of the Board of Directors ordering redemption of the Rights, with, where
required, the concurrence of the continuing Directors, the Rights will terminate
and the only right of the holders of Rights will be to receive the $.0l
redemption price.

          The term "Continuing Directors" means any member of the Board of
Directors of the Company who was a member of the Board prior to the date of the
Rights Agreement, and any person who is subsequently elected to the Board if
such person is recommended or approved by a majority of the Continuing
Directors, but shall not include an Acquiring Person, or an affiliate or
associate of an Acquiring Person, or any representative of the foregoing
entities.

          Until a Right is exercised, the holder thereof, as such, will have no
rights as a shareholder of the Company, including, without limitation, the right
to vote or to receive dividends.  While the distribution of the Rights will not
be taxable to shareholders or to the Company, shareholders may, depending upon
the circumstances, recognize taxable income in the event that the Rights become
exercisable for Preferred Shares (or other consideration) of the company or for
common shares of the acquiring company as set forth above.

                                                                             108
<PAGE>
 
          Other than those provisions relating to the principal economic terms
of the Rights, any of the provisions of the Rights Agreement may be amended by
the Board of Directors of the Company prior to the Distribution Date.  After the
Distribution Date, the provisions of the Rights Agreement may be amended by the
Board (in certain circumstances, with the concurrence of the Continuing
Directors) in order to cure any ambiguity, to make changes that do not adversely
affect the interests of holders of Rights (excluding the interests of any
Acquiring Person), or to shorten or lengthen any time period under the Rights
Agreement; provided, however, that no amendment to adjust the time period
governing redemption shall be made at such time as the Rights are not
redeemable.

          A copy of the Rights Agreement is being filed with the Securities and
Exchange Commission as an Exhibit to a Registration Statement on Form 8-A.  A
copy of the Rights Agreement is available free of charge from the Company.  This
summary description of the Rights does not purport to be complete and is
qualified in its entirety by reference to the Rights Agreement, which is
incorporated herein by reference.

                                                                             109

<PAGE>
 
                                                                EXHIBIT 10.14.14

                       FIFTEENTH MODIFICATION AGREEMENT
                       --------------------------------

     THIS AGREEMENT is made as of the 31st day of March, 1998, by and among PNC
BANK, NATIONAL ASSOCIATION, successor by merger to Provident National Bank, a
national banking association with offices at 1600 Market Street, Philadelphia,
Pennsylvania 19103 (the "Bank"), and SEI INVESTMENTS COMPANY (formerly SEI
Corporation), a Pennsylvania corporation (the "Borrower").

                                  BACKGROUND
                                  ----------

     Bank and Borrower have entered into a Credit Agreement effective as of May
31, 1992 as amended by a Waiver and First Modification Agreement between Bank
and Borrower dated as of September 30, 1992, a Second Modification Agreement
between Bank and Borrower dated as of April 19, 1993, a Third Modification
Agreement between Bank and Borrower dated as of May 31, 1993, a Fourth
Modification Agreement between Bank and Borrower dated as of March 14, 1994, a
Fifth Modification Agreement dated as of May 31, 1994, a Sixth Modification
Agreement dated as of May 5, 1995, a Seventh Modification Agreement effective as
of May 31, 1995, an Eighth Modification Agreement dated October 19, 1995, a
Ninth Modification Agreement dated March 31, 1996 a Tenth Modification Agreement
dated as of May 31, 1996, an Eleventh Modification Agreement dated October 1,
1996, a Release and Modification Agreement dated February 20, 1997, a Thirteenth
Modification Agreement dated May 30, 1997 and a Fourteenth Modification
Agreement dated as of December 31, 1997 (as so amended, the "Credit Agreement")
pursuant to which Bank agreed to make up to $50,000,000 in loans (the "Loans")
to Borrower.  Capitalized terms used herein and not otherwise defined shall have
the meanings ascribed to them in the Credit Agreement.  The Loans are evidenced
by Borrower's note originally dated May 31, 1992 and amended and restated
September 30, 1992, May 31, 1996 and October 1, 1996 (the "Note") in the
principal amount of $50,000,000.

     Borrower and Bank have agreed to certain amendments to the Credit
Agreement, upon the terms and conditions set forth herein.


     NOW, THEREFORE, the parties hereto, intending to be legally bound hereby,
agree as follows:

                                   AGREEMENT
                                   ---------

     1.  Terms.  Capitalized terms used herein and not otherwise defined herein
         -----                                                                 
shall have the meanings given to such terms in the Credit Agreement.

     2.  Amendment to Credit Agreement.  The Credit Agreement is hereby amended
         -----------------------------                                         
by amending and restating Section 7.7 thereof to read in full as follows:

     "(S)7.7.  Leverage Ratio.  It shall maintain as of each fiscal quarter a
               --------------                                                
     ratio of Funded Debt to Capitalization of not greater than .65 to 1."

     3.  Loan Documents.  Except where the context clearly requires otherwise,
         --------------                                                       
all references to the Credit Agreement in the Note or any other document
delivered to Bank in connection therewith shall be to the Credit Agreement as
amended by this Agreement.

     4.  Borrower's Ratification.  Borrower agrees that it has no defenses or
         -----------------------                                             
set-offs against the Bank, its officers, directors, employees, agents or
attorneys with respect to the Note or the Credit Agreement, all of which are in
full force and effect and shall remain in full force and effect unless and until
modified or amended in writing in accordance with their terms.  Borrower hereby
ratifies and confirms its obligations under the Note and the Credit Agreement
and agrees that the execution and the delivery of this Agreement does not in any
way diminish or invalidate any of its obligations thereunder.

                                                                             111
<PAGE>
 
     5.   Representations and Warranties.  Borrower hereby certifies that:
          ------------------------------                                  

          (a)  except as otherwise previously disclosed to Bank in any manner
whatsoever, the representations and warranties made in the Credit Agreement are
true and correct as of the date hereof.

          (b)  no Event of Default under the Note or the Credit Agreement and no
event which with the passage of time or the giving of notice or both could
become an Event of Default, exists on the date hereof; and

          (c)  this Agreement has been duly authorized, executed and delivered
so as to constitute the legal, valid and binding obligation of Borrower,
enforceable in accordance with its terms.

     All of the above representations and warranties shall survive the making of
this Agreement.

     6.   No Waiver.  This Agreement does not and shall not be deemed to
          ---------                                                     
constitute a waiver by Bank of any Event of Default under the Note or Credit
Agreement, or of any event which with the passage of time or the giving of
notice or both would constitute an Event of Default, nor does it obligate Bank
to agree to any further modifications of the terms of the Credit Agreement or
constitute a waiver of any of Bank's other rights or remedies.

     7.   Miscellaneous.
          ------------- 

          (a)  All terms, conditions, provisions and covenants in the Note, the
Credit Agreement, and all other documents delivered to Bank in connection
therewith shall remain unaltered and in full force and effect except as modified
or amended hereby.  To the extent that any term or provision of this Agreement
is or may be deemed expressly inconsistent with any term or provision in the
Credit Agreement, the Note or any other document executed in connection
therewith, the terms and provisions hereof shall control.

          (b)  This Agreement shall be governed by and construed according to
the laws of the Commonwealth of Pennsylvania.

          (c)  This Agreement shall inure to the benefit of, and be binding
upon, the parties hereto and their respective successors and assigns and may be
executed in one or more counterparts, each of which shall be deemed an original,
but all of which together shall constitute one and the same instrument.

                                                                             112
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the day and year first above written.

                                           BORROWER
                                           --------

[SEAL]                              SEI INVESTMENTS COMPANY
                                      (formerly SEI Corporation)

                                          
Attest: /s/ Todd Cipperman          By:    /s/ Kathy Heilig
        -------------------                -----------------------------------
                           
Title:  Vice President              Title: Assistant Controller and Treasurer
        -------------------                -----------------------------------
 
 
                                           BANK
                                           ----
 
                                           PNC BANK, NATIONAL ASSOCIATION

 
                                    By:    /s/ Warren C. Engle
                                           -----------------------------------
 
                                    Title  Vice President
                                           -----------------------------------
 
                                                                             113

<PAGE>
 
                                                                EXHIBIT 10.14.15


                       SIXTEENTH MODIFICATION AGREEMENT
                       --------------------------------

     THIS AGREEMENT is made as of the 29th day of May, 1998, by and among PNC
BANK, NATIONAL ASSOCIATION, successor by merger to Provident National Bank, a
national banking association with offices at 1600 Market Street, Philadelphia,
Pennsylvania 19103 (the "Bank"), and SEI INVESTMENTS COMPANY (formerly SEI
Corporation), a Pennsylvania corporation (the "Borrower").

                                  BACKGROUND
                                  ----------

     Bank and Borrower have entered into a Credit Agreement effective as of May
31, 1992 as amended by a Waiver and First Modification Agreement between Bank
and Borrower dated as of September 30, 1992, a Second Modification Agreement
between Bank and Borrower dated as of April 19, 1993, a Third Modification
Agreement between Bank and Borrower dated as of May 31, 1993, a Fourth
Modification Agreement between Bank and Borrower dated as of March 14, 1994, a
Fifth Modification Agreement dated as of May 31, 1994, a Sixth Modification
Agreement dated as of May 5, 1995, a Seventh Modification Agreement effective as
of May 31, 1995, an Eighth Modification Agreement dated October 19, 1995, a
Ninth Modification Agreement dated March 31, 1996 a Tenth Modification Agreement
dated as of May 31, 1996, an Eleventh Modification Agreement dated October 1,
1996, a Release and Modification Agreement dated February 20, 1997, a Thirteenth
Modification Agreement dated May 30, 1997,  a Fourteenth Modification Agreement
dated as of December 31, 1997 and a Fifteenth Modification Agreement dated as of
March 31, 1998 (as so amended, the "Credit Agreement") pursuant to which Bank
agreed to make up to $50,000,000 in loans (the "Loans") to Borrower.
Capitalized terms used herein and not otherwise defined shall have the meanings
ascribed to them in the Credit Agreement.  The Loans are evidenced by Borrower's
note originally dated May 31, 1992 and amended and restated September 30, 1992,
May 31, 1996 and October 1, 1996 (the "Note") in the principal amount of
$50,000,000.

     Borrower and Bank have agreed to extend the Termination Date, as
contemplated by the Credit Agreement, upon the terms and conditions set forth
herein.

     NOW, THEREFORE, the parties hereto, intending to be legally bound hereby,
agree as follows:

                                   AGREEMENT
                                   ---------

     1.   Terms.  Capitalized terms used herein and not otherwise defined herein
          -----                                                                 
shall have the meanings given to such terms in the Credit Agreement.

     2.   Amendment to Credit Agreement.  The Credit Agreement is hereby amended
          -----------------------------                                         
as follows:

          (a)  As contemplated by Section 9.15 of the Credit Agreement, the
Termination Date and the date on which the Credit Commitment shall expire and
the Credit Period shall end is hereby changed from May 31, 1998 to May 31, 1999,
effective June 1, 1998.

     3.   Loan Documents.  Except where the context clearly requires otherwise,
          --------------                                                       
all references to the Credit Agreement in the Note or any other document
delivered to Bank in connection therewith shall be to the Credit Agreement as
amended by this Agreement.

     4.   Borrower's Ratification.  Borrower agrees that it has no defenses or
          -----------------------                                             
set-offs against the Bank, its officers, directors, employees, agents or
attorneys with respect to the Note or the Credit Agreement, all of which are in
full force and effect and shall remain in full force and effect unless and until
modified or amended in writing in accordance with their terms.  Borrower hereby
ratifies and confirms its obligations under the Note and the Credit Agreement
and agrees that the execution and the delivery of this Agreement does not in any
way diminish or invalidate any of its obligations thereunder.

                                                                             115

<PAGE>
 
     5.   Representations and Warranties.  Borrower hereby certifies that:
          ------------------------------                                  

          (a) except as otherwise previously disclosed to Bank in any manner
whatsoever, the representations and warranties made in the Credit Agreement are
true and correct as of the date hereof.

          (b) no Event of Default under the Note or the Credit Agreement and no
event which with the passage of time or the giving of notice or both could
become an Event of Default, exists on the date hereof; and

          (c) this Agreement has been duly authorized, executed and delivered so
as to constitute the legal, valid and binding obligation of Borrower,
enforceable in accordance with its terms.

     All of the above representations and warranties shall survive the making of
this Agreement.

     6.   No Waiver.  This Agreement does not and shall not be deemed to
          ---------                                                     
constitute a waiver by Bank of any Event of Default under the Note or Credit
Agreement, or of any event which with the passage of time or the giving of
notice or both would constitute an Event of Default, nor does it obligate Bank
to agree to any further modifications of the terms of the Credit Agreement or
constitute a waiver of any of Bank's other rights or remedies.

     7.   Miscellaneous.
          ------------- 

          (a) All terms, conditions, provisions and covenants in the Note, the
Credit Agreement, and all other documents delivered to Bank in connection
therewith shall remain unaltered and in full force and effect except as modified
or amended hereby.  To the extent that any term or provision of this Agreement
is or may be deemed expressly inconsistent with any term or provision in the
Credit Agreement, the Note or any other document executed in connection
therewith, the terms and provisions hereof shall control.

          (b) This Agreement shall be governed by and construed according to the
laws of the Commonwealth of Pennsylvania.

          (c) This Agreement shall inure to the benefit of, and be binding upon,
the parties hereto and their respective successors and assigns and may be
executed in one or more counterparts, each of which shall be deemed an original,
but all of which together shall constitute one and the same instrument.

                                                                             116
<PAGE>

 
     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the day and year first above written.

 
                                             BORROWER
                                             --------

 
[SEAL]                             SEI INVESTMENTS COMPANY
                                    (formerly SEI Corporation)


Attest:   /s/ Todd Cipperman          By:      /s/ Kathy Heilig
       -------------------------             -----------------------------------
 
Title:    Vice President              Title:  Assistant Controller and Treasurer
       -------------------------             -----------------------------------
 
 
                                             BANK
                                             ----
 
                                             PNC BANK, NATIONAL ASSOCIATION
 
 
                                      By:    /s/ Warren C. Engle
                                            ------------------------------------
 
                                      Title  Vice President
                                            ------------------------------------

                                                                             117

<PAGE>
 
                                                                EXHIBIT 10.14.16


                      SEVENTEENTH MODIFICATION AGREEMENT
                      ----------------------------------

     THIS AGREEMENT is effective as of the 29th day of September, 1998, by and
among PNC BANK, NATIONAL ASSOCIATION, successor by merger to Provident National
Bank, a national banking association with offices at 1600 Market Street,
Philadelphia, Pennsylvania 19103 (the "Bank"), and SEI INVESTMENTS COMPANY
(formerly SEI Corporation), a Pennsylvania corporation (the "Borrower").

                                  BACKGROUND
                                  ----------

     Bank and Borrower have entered into a Credit Agreement effective as of May
31, 1992 as amended by a Waiver and First Modification Agreement between Bank
and Borrower dated as of September 30, 1992, a Second Modification Agreement
between Bank and Borrower dated as of April 19, 1993, a Third Modification
Agreement between Bank and Borrower dated as of May 31, 1993, a Fourth
Modification Agreement between Bank and Borrower dated as of March 14, 1994, a
Fifth Modification Agreement dated as of May 31, 1994, a Sixth Modification
Agreement dated as of May 5, 1995, a Seventh Modification Agreement effective as
of May 31, 1995, an Eighth Modification Agreement dated October 19, 1995, a
Ninth Modification Agreement dated March 31, 1996 a Tenth Modification Agreement
dated as of May 31, 1996, an Eleventh Modification Agreement dated October 1,
1996, a Release and Modification Agreement dated February 20, 1997, a Thirteenth
Modification Agreement dated May 30, 1997, a Fourteenth Modification Agreement
dated as of December 31, 1997, a Fifteenth Modification Agreement dated as of
March 31, 1998 and a Sixteenth Modification Agreement dated as of May 29, 1998
(as so amended, the "Credit Agreement") pursuant to which Bank agreed to make up
to $50,000,000 in loans (the "Loans") to Borrower.  Capitalized terms used
herein and not otherwise defined shall have the meanings ascribed to them in the
Credit Agreement.  The Loans are evidenced by Borrower's note originally dated
May 31, 1992 and amended and restated September 30, 1992, May 31, 1996 and
October 1, 1996 (the "Note") in the principal amount of $50,000,000.

     Borrower and Bank have agreed to extend certain amendments to the Credit
Agreement, upon the terms and conditions set forth herein.

     NOW, THEREFORE, the parties hereto, intending to be legally bound hereby,
agree as follows:

                                   AGREEMENT
                                   ---------

     1.  Terms.  Capitalized terms used herein and not otherwise defined herein
         -----                                                                 
shall have the meanings given to such terms in the Credit Agreement.

     2.  Amendment to Credit Agreement.  The Credit Agreement is hereby amended
         -----------------------------                                         
by amending and restating Section 7.10(g) thereof to read in full as follows:
                "(g) Purchases by the Company of its common stock (to be Retired
                by the Company) of up to an aggregate consideration of
                $300,000,000 (cumulatively since the institution of its stock
                repurchase program), less the consideration paid by the Company
                for the purchase of its common stock as of the date hereof;"

     3.  Loan Documents.  Except where the context clearly requires otherwise,
         --------------                                                       
all references to the Credit Agreement in the Note or any other document
delivered to Bank in connection therewith shall be to the Credit Agreement as
amended by this Agreement.

     4.  Borrower's Ratification.  Borrower agrees that it has no defenses or
         -----------------------                                             
set-offs against the Bank, its officers, directors, employees, agents or
attorneys with respect to the Note or the Credit Agreement, all of which are in
full force and effect and shall remain in full force and effect unless and until
modified or amended in writing in accordance with their terms.  Borrower hereby
ratifies and confirms its obligations under the Note and the Credit Agreement
and agrees that the execution and the delivery of this Agreement does not in any
way diminish or invalidate any of its obligations thereunder.

                                                                             119
<PAGE>
 
     5.   Representations and Warranties.  Borrower hereby certifies that:
          ------------------------------                                  

          (a) except as otherwise previously disclosed to Bank in any manner
whatsoever, the representations and warranties made in the Credit Agreement are
true and correct as of the date hereof.

          (b) no Event of Default under the Note or the Credit Agreement and no
event which with the passage of time or the giving of notice or both could
become an Event of Default, exists on the date hereof; and

          (c) this Agreement has been duly authorized, executed and delivered so
as to constitute the legal, valid and binding obligation of Borrower,
enforceable in accordance with its terms.

     All of the above representations and warranties shall survive the making of
this Agreement.

     6.   No Waiver.  This Agreement does not and shall not be deemed to
          ---------                                                     
constitute a waiver by Bank of any Event of Default under the Note or Credit
Agreement, or of any event which with the passage of time or the giving of
notice or both would constitute an Event of Default, nor does it obligate Bank
to agree to any further modifications of the terms of the Credit Agreement or
constitute a waiver of any of Bank's other rights or remedies.

     7.   Miscellaneous.
          ------------- 

          (a) All terms, conditions, provisions and covenants in the Note, the
Credit Agreement, and all other documents delivered to Bank in connection
therewith shall remain unaltered and in full force and effect except as modified
or amended hereby.  To the extent that any term or provision of this Agreement
is or may be deemed expressly inconsistent with any term or provision in the
Credit Agreement, the Note or any other document executed in connection
therewith, the terms and provisions hereof shall control.

          (b) This Agreement shall be governed by and construed according to the
laws of the Commonwealth of Pennsylvania.

          (c) This Agreement shall inure to the benefit of, and be binding upon,
the parties hereto and their respective successors and assigns and may be
executed in one or more counterparts, each of which shall be deemed an original,
but all of which together shall constitute one and the same instrument.

                                                                             120
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the day and year first above written.

 
                                               BORROWER
                                               --------

 
[SEAL]                                  SEI INVESTMENTS COMPANY
                                        (formerly SEI Corporation)


Attest:     /s/ Todd Cipperman           By:       /s/ Kathy Heilig
        ----------------------------            ------------------------------
                                         
Title:      Vice President               Title: Assistant Controller and 
        ----------------------------
                                                Treasurer
                                                ------------------------------
 
 
                                                  BANK
                                                  ----
 
                                                  PNC BANK, NATIONAL ASSOCIATION
 
 
                                         By:    /s/ Warren C. Engle
                                               -------------------------------
 
                                         Title  Vice President
                                               -------------------------------

                                                                             121


<PAGE>
 
                                                                 EXHIBIT 10.17.1

================================================================================



                            SEI Investments Company

                      ___________________________________

                                First Amendment
                         Dated as of December 15, 1998

                                      to

                            Note Purchase Agreement
                         Dated as of February 24, 1997

                      ___________________________________

                 Re: $20,000,000 7.20% Senior Notes, Series A,
                             due February 24, 2007

                                      and

                   $15,000,000 7.27% Senior Notes, Series B,
                             due February 24, 2012


================================================================================

                                                                             123
<PAGE>
 
                            SEI INVESTMENTS COMPANY

                           OAKS, PENNSYLVANIA  19456

                                FIRST AMENDMENT

                         Dated as of December 15, 1998

                                      To

                            NOTE PURCHASE AGREEMENT

                         Dated as of February 24, 1997


                Re:  $20,000,000 7.20% Senior Notes, Series A,
                             due February 24, 2007

                                      and

                   $15,000,000 7.27% Senior Notes, Series B,
                             due February 24, 2012

To the Noteholders Which are Signatories
to this Amendment

      Reference is made to the Note Purchase Agreement, dated as of February 24,
1997 (the "Note Agreement"), among the undersigned, SEI Investments Company, a
Pennsylvania corporation (the "Company"), and each of the Purchasers named on
Schedule A thereto (the "Purchasers").  Unless otherwise herein defined or the
context hereof shall otherwise require, capitalized terms used in this First
Amendment (the or this "First Amendment"), shall have the respective meanings
specified in the Note Agreement.

                                   RECITALS:

      A.  The Company and each of the Purchasers have heretofore entered into
the Note Agreement.  The Company has heretofore issued $20,000,000 aggregate
principal amount of its 7.20% Senior Notes, Series A, due February 24, 2007 (the
"Series A Notes") and $15,000,000 aggregate principal amount of its 7.27% Senior
Notes, Series B, due February 24, 2012 (the "Series B Notes", the Series A Notes
and Series B Notes are hereinafter collectively referred to as the "Notes").  On
the date hereof, $19,000,000 aggregate principal amount of the Series A Notes
and $14,000,000 aggregate principal amount of the Series B Notes are
outstanding.

      B.  The Company and the holders of the Notes (the "Noteholders") now
desire to amend the Note Agreement in the respects, but only in the respects,
hereinafter set forth.

      C.  All requirements of law have been fully complied with and all other
acts and things necessary to make this First Amendment a valid, legal and
binding instrument according to its terms for the purposes herein expressed have
been done or performed.

      Now, therefore, the Company requests the following amendments to the Note
Agreement, and, based on the representations and warranties of the Company
herein set forth and subject to the terms and conditions herein provided, the
Noteholders are willing to enter into such amendments.

                                                                             124
<PAGE>
 
Section 1.  Amendments.

     Section 10.3 of the Note Agreement shall be and is hereby amended in its
entirety to read as follows:

               "Section 10.3. Consolidated Net Worth 

               (a) The Company will not, at any time on or before September 30,
          1998, permit Consolidated Net Worth to be less than the sum of (i)
          $30,000,000, plus (ii) an aggregate amount equal to 30% of its
          Consolidated Net Income (but, in each case, only if a positive number)
          for each completed fiscal year beginning with the fiscal year ending
          on December 31, 1997, plus (iii) 30% of its Consolidated Net Income
          (but only if a positive number) for the period beginning on the first
          day of the then current fiscal year and ending at the end of the then
          most recently completed fiscal quarter.

               (b) The Company will not, at any time after September 30, 1998
          and on or before December 31, 1999, permit Consolidated Net Worth to
          be less than the sum of (i) $43,000,000, plus (ii) 25% of its
          Consolidated Net Income (but only if a positive number) for the period
          beginning on the first day of the fiscal year ending on December 31,
          1999 and ending at the end of the then most recently completed fiscal
          quarter.

               (c) The Company will not, at any time after December 31, 1999,
          permit Consolidated Net Worth to be less than the sum of (i)
          $43,000,000, plus (ii) an amount equal to 25% of its Consolidated Net
          Income (but only if a positive number) for the fiscal year ending on
          December 31, 1999, plus (iii) an aggregate amount equal to 50% of its
          Consolidated Net Income (but, in each case, only if a positive number)
          for each completed fiscal year beginning with the fiscal year ending
          on December 31, 2000, plus (iv) 50% of its Consolidated Net Income
          (but only if a positive number) for the period beginning on the first
          day of the then current fiscal year and ending at the end of the then
          most recently completed fiscal quarter."

Section 2.  Representations and Warranties of the Company.

     To induce the Noteholders to execute and deliver this First Amendment
(which representations shall survive the execution and delivery of this First
Amendment), the Company represents and warrants to the Noteholders that:

          (a)  this First Amendment has been duly authorized, executed and
     delivered by it and this First Amendment constitutes the legal, valid and
     binding obligation, contract and agreement of the Company enforceable
     against it in accordance with its terms, except as enforcement may be
     limited by bankruptcy, insolvency, reorganization, moratorium or similar
     laws or equitable principles relating to or limiting creditors' rights
     generally;

          (b)  the Note Agreement, as amended by this First Amendment,
     constitutes the legal, valid and binding obligation, contract and agreement
     of the Company enforceable against it in accordance with its terms, except
     as enforcement may be limited by bankruptcy, insolvency, reorganization,
     moratorium or similar laws or equitable principles relating to or limiting
     creditors' rights generally;

                                                                             125
<PAGE>
 
            (c) the execution, delivery and performance by the Company of this
     First Amendment (i) has been duly authorized by all requisite corporate
     action, (ii) does not require the consent or approval of any governmental
     or regulatory body or agency, and (iii) will not (A) violate (1) any
     provision of law, statute, rule or regulation or its Articles of
     Incorporation or bylaws, (2) any order of any court or any rule, regulation
     or order of any other agency or government binding upon it, or (3) any
     provision of any material indenture, agreement or other instrument to which
     it is a party or by which its properties or assets are or may be bound, or
     (B) result in a breach or constitute (alone or with due notice or lapse of
     time or both) a default under any indenture, agreement or other instrument
     referred to in clause (iii)(A)(3) of this (S)2.1(C);

            (d) as of the date hereof and after giving effect to this First
     Amendment, no Default or Event of Default has occurred which is continuing;
     and

            (e) all the representations and warranties contained in Section 5 of
     the Note Agreement are true and correct in all material respects with the
     same force and effect as if made by the Company on and as of the date
     hereof.

Section 3.  Conditions to Effectiveness of This First Amendment.

            This First Amendment shall not become effective until, and shall
become effective when, each and every one of the following conditions shall have
been satisfied:

            (a) executed counterparts of this First Amendment, duly executed by
     the Company and the holders of at least 51% of the outstanding principal
     amount of the Notes, shall have been delivered to the Noteholders;

            (b) the representations and warranties of the Company set forth in
     (S)2 hereof are true and correct on and with respect to the date hereof;

            (c) the Company shall have paid all costs and expenses incurred by
     the Noteholders in connection with the consummation of the transactions
     contemplated by this First Amendment, including, without limitation, the
     fees and expenses of Chapman and Cutler, special counsel to the
     Noteholders, which are reflected in statements of such counsel rendered on
     or prior to the effective date of this First Amendment; and

            (d) in consideration of the agreement of the Noteholders to amend
     the Note Agreement as set forth in (S)1, each Noteholder shall have
     received a fee equal to 0.35% of the unpaid principal amount of the Notes
     held by such Noteholder, whether or not such Noteholder shall have executed
     and delivered a counterpart to this First Amendment.

Upon receipt of all of the foregoing, this First Amendment shall become
effective.

Section 4.  Miscellaneous.

          Section 4.1.  Construction.  This First Amendment shall be construed
in connection with and as part of the Note Agreement, and except as modified and
expressly amended by this First Amendment, all terms, conditions and covenants
contained in the Note Agreement and the Notes are hereby ratified and shall be
and remain in full force and effect.

                                                                             126
<PAGE>
 
          Section 4.2.  Notices.  Any and all notices, requests, certificates
and other instruments executed and delivered after the execution and delivery of
this First Amendment may refer to the Note Agreement without making specific
reference to this First Amendment but nevertheless all such references shall
include this First Amendment unless the context otherwise requires.

          Section 4.3.  Captions.  The descriptive headings of the various
Sections or parts of this First Amendment are for convenience only and shall not
affect the meaning or construction of any of the provisions hereof.

          Section 4.4.  Governing Law.  This First Amendment shall be construed
and enforced in accordance with, and the rights of the parties shall be governed
by, the law of the State of New York excluding choice-of-law principles of the
law of such State that would require the application of the laws of a
jurisdiction other than such State.

          Section 4.5.  Counterparts.  The execution hereof by you shall
constitute a contract between us for the uses and purposes hereinabove set
forth, and this First Amendment may be executed in any number of counterparts,
each executed counterpart constituting an original, but all together only one
agreement.

                                                                             127
<PAGE>
 
     In Witness Whereof, the Company and the Noteholders have caused this First
Amendment to be executed, all as of the day and the year first above-written.


                                 SEI Investments Company


                                 By:  /s/ Todd Cipperman
                                      -------------------------------------
 
                                 Its:      Vice President
                                      -------------------------------------


Accepted and Agreed to:

Connecticut General Life Insurance Company
By:  CIGNA Investments, Inc.

     By:      /s/ James R. Kuzemchak
             ----------------------------------------
 
      Its:        Managing Director
             ----------------------------------------

 
Connecticut General Life Insurance Company, on
        behalf of one or more separate accounts
By:  CIGNA Investments, Inc.

     By:      /s/ James R. Kuzemchak
             ----------------------------------------
 
       Its:       Managing Director
             ----------------------------------------
 
Insurance Company of North America
By:  CIGNA Investments, Inc.

     By:      /s/ James R. Kuzemchak
             ----------------------------------------
 
       Its:       Managing Director
             ----------------------------------------
 
Pacific Employers Insurance Company
By:  CIGNA Investments, Inc.

     By:     /s/ James R. Kuzemchak
             ----------------------------------------
 
       Its:      Managing Director
             ----------------------------------------

                                                                             128
<PAGE>
 
The Lincoln National Life Insurance Company
 
By:  Lincoln Investment Management, Inc.,
          Its Attorney-In-Fact
 
     By:      /s/ Timothy J. Powell
             ----------------------------------------
 
       Its:       Vice President
             ----------------------------------------


Nationwide Life Insurance Company

     By:     /s/ Mark W. Poeppelman
             ----------------------------------------
 
       Its:      Authorized Signatory
             ----------------------------------------

                                                                             129

<PAGE>
 
                                                                      EXHIBIT 21


                        SUBSIDIARIES OF THE REGISTRANT
                        ------------------------------
                                        
<TABLE> 
<CAPTION> 
                                             JURISDICTION OF ORGANIZATION
       NAME                                       OR INCORPORATION
       ----                                       ----------------
<S>                                          <C> 
SEI Investments Distribution Company              Pennsylvania

SEI Investments Management Corporation            Delaware

SEI, Inc.                                         Canada (Federal)

SEI Capital Limited                               Canada (Federal)

Rembrandt Financial Services Company              Pennsylvania

SEI Investments Developments, Inc.                Delaware

SEI Investments Mutual Funds Services             Delaware

SEI Investments Fund Management                   Delaware

SEI Trust Company                                 Pennsylvania

SEI Funds, Inc.                                   Delaware

SEI Investments, Inc.                             Delaware

SEI Global Investments Corporation                Delaware

SEI Capital AG                                    Switzerland

Primus Capital Advisors Company                   Canada (Federal)

SEI Advanced Capital Management, Inc.             Delaware

SEI Global Capital Investments, Inc.              Delaware

SEI Global Management (Cayman) Inc.               Cayman Islands, B. W. I.

SEI Global Asset Management Limited               Ireland

Fund Resources International Limited              Ireland

SEI Investments Argentina, S. A.                  Argentina

SEI Global Holdings (Cayman) Inc.                 Cayman Islands, B. W. I.

Latinvest Sociedad de Bolsa, S. A.                Argentina

Quadrum, S. A.                                    Argentina

Fortum, S. A. DE C.V.                             Mexico
</TABLE> 

                                                                             131

<PAGE>
 
                                                                      EXHIBIT 23


                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


To SEI Investments Company:


As independent public accountants, we hereby consent to the incorporation of our
report, included in this Form 10-K, into the Company's previously filed
Registration Statements File No. 2-73997, File No. 2-75629, File No. 2-78133,
File No. 2-80841, File No. 2-89659, File No. 33-19952, File No. 33-24595, File
No. 33-41602, File No. 333-41343, and File No. 333-63709.


                                         ARTHUR ANDERSEN LLP


Philadelphia, Pa.,
 March 29, 1999

                                                                             133

<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CONSOLIDATED
BALANCE SHEETS, CONSOLIDATED STATEMENTS OF OPERATIONS AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
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<SECURITIES>                                     3,565
<RECEIVABLES>                                   29,119
<ALLOWANCES>                                   (1,200)
<INVENTORY>                                          0
<CURRENT-ASSETS>                               113,509
<PP&E>                                         120,213
<DEPRECIATION>                                (57,452)
<TOTAL-ASSETS>                                 208,772
<CURRENT-LIABILITIES>                          110,794
<BONDS>                                         31,000
                                0
                                          0
<COMMON>                                           179
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<TOTAL-LIABILITY-AND-EQUITY>                   208,772
<SALES>                                              0
<TOTAL-REVENUES>                               366,119
<CGS>                                                0
<TOTAL-COSTS>                                  284,771
<OTHER-EXPENSES>                                13,463
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             (2,575)
<INCOME-PRETAX>                                 69,883
<INCOME-TAX>                                    26,904
<INCOME-CONTINUING>                             42,979
<DISCONTINUED>                                     710
<EXTRAORDINARY>                                      0
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</TABLE>

<PAGE>
 
                                                                      EXHIBIT 99

The undertaking set forth below is filed for purposes of incorporation by
reference into Part II of the registration statements on Form S-8, File No. 2-
73997, File No. 2-75629, File No. 2-78133, File No. 2-80841, File No. 2-89659,
File No. 33-19952, File No. 33-24595, File No. 33-41602, File No. 333-41343, and
File No. 333-63709.

Item 9.   Undertakings.
- - ---------------------- 

    (a)    The undersigned registrant hereby undertakes:

           Insofar as indemnification for liabilities arising under the
           Securities Act of 1933 (the "Securities Act") may be permitted to
           directors, officers or persons controlling the registrant pursuant to
           the provisions described in this registration statement, or
           otherwise, SEI Investments Company (the "Company") has been advised
           that in the opinion of the Commission such indemnification is against
           public policy as expressed in the Securities Act and is therefore
           unenforceable.  In the event that a claim for indemnification against
           such liabilities (other than the payment by the Company of expenses
           incurred or paid by a director, officer or controlling person of the
           Company in the successful defense of any action, suit or proceeding)
           is asserted by such director, officer or controlling person in
           connection with the securities being registered, the Company will,
           unless in the opinion of its counsel the matter has been settled by
           controlling precedent, submit to a court of appropriate jurisdiction
           the question whether such indemnification by it is against public
           policy as expressed in the Securities Act and will be governed by the
           final adjudication of such issue.

                                                                             135


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