CITIZENS BANKING CORP
10-K, 2000-03-30
NATIONAL COMMERCIAL BANKS
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<PAGE>   1

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-K

[x]  Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange
     Act of 1934 [No Fee Required]

For the fiscal year ended December 31, 1999

                                       or

[ ]  Transition Report Pursuant to Section 13 or 15(d) of the Securities
     Exchange Act of 1934 [No Fee Required]

For the transition period from                  to
                               ----------------    -----------------

Commission file Number   0-10535
                       ------------

                          CITIZENS BANKING CORPORATION
- - --------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

           MICHIGAN                                               38-2378932
- - -------------------------------                              -------------------
(State or other jurisdiction of                               (I.R.S. Employer
 incorporation or organization)                              Identification No.)

      One Citizens Banking Center,
 328 S. Saginaw Street, Flint, Michigan                            48502
- - ----------------------------------------                         ----------
(Address of principal executive offices)                         (Zip Code)

Registrant's telephone number, including area code      (810) 766-7500
                                                    ---------------------

Securities registered pursuant to Section 12(b) of the Act:   None
                                                            ----------

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

                           Common Stock - No Par Value
- - --------------------------------------------------------------------------------
                                (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. X Yes 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. [ ]
     The aggregate market value of the voting stock held by non-affiliates of
the registrant was approximately $835,092,000 as of March 24, 2000.
     The number of shares outstanding of the registrant's Common Stock (No par
value) was 47,544,549 as of March 24, 2000.

                       DOCUMENTS INCORPORATED BY REFERENCE

     Portions of the Citizens Banking Corporation Proxy Statement for its annual
meeting of shareholders to be held April 18, 2000 are incorporated by reference
into Part III.

(Exhibit Index - Pages 14 through 16)



<PAGE>   2


                          CITIZENS BANKING CORPORATION

                         1999 ANNUAL REPORT ON FORM 10-K



                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                       Page
                                                                                                                       ----
PART I
<S>                                                                                                                   <C>
   Item 1.     Business ...............................................................................................   3
   Item 2.     Properties .............................................................................................   8
   Item 3.     Legal Proceedings ......................................................................................   8
   Item 4.     Submission of Matters To a Vote of Security Holders ....................................................   8

PART II
   Item 5.     Market for the Registrant's Common Equity and Related Stockholder Matters ..............................   9
   Item 6.     Selected Financial Data ................................................................................   9
   Item 7.     Management's Discussion and Analysis of Financial Condition and Results of Operations ..................   9
   Item 7A.    Quantitative and Qualitative Disclosures About Market Risk .............................................   9
   Item 8.     Financial Statements and Supplementary Data ............................................................   9
   Item 9.     Changes in and Disagreements with Accountants on Accounting and Financial Disclosure....................   9

PART III
   Item 10.    Directors and Executive Officers of the Registrant .....................................................  10
   Item 11.    Executive Compensation .................................................................................  10
   Item 12.    Security Ownership of Certain Beneficial Owners and Management .........................................  10
   Item 13.    Certain Relationships and Related Transactions .........................................................  10

PART IV
   Item 14.    Exhibits, Financial Statement Schedules, and Reports on Form 8-K .......................................  11

SIGNATURES     ........................................................................................................  12

EXHIBIT INDEX  ........................................................................................................  14
</TABLE>



                                       2

<PAGE>   3


                                     PART I
- - --------------------------------------------------------------------------------

ITEM 1.  BUSINESS

General
       Citizens Banking Corporation ("Citizens") was organized January 1, 1982.
It is a multibank holding company registered under the Bank Holding Company Act
of 1956, as amended, and is incorporated in the State of Michigan. On December
31, 1999, Citizens had 3,220 full-time equivalent employees and directly or
indirectly owned the following subsidiaries at year-end 1999.

- - --------------------------------------------------------------------------------


<TABLE>
<CAPTION>

- - --------------------------------------------------------------------------------------------------------------------------
                                                                                                 Total
                                                            Principal           Number of       Assets          Date
                    Subsidiary                               Office              Offices     (in millions)    Acquired
- - --------------------------------------------------------------------------------------------------------------------------
<S>                                                  <C>                       <C>          <C>             <C>
Citizens Bank (1)                                           Flint, MI              136           $4,930.1     01/01/82
Citizens Bank - Illinois, N.A.                             Berwyn, IL                3              251.6     05/01/87
F&M Bancorporation, Inc. (2)
    F&M Merger Corporation
        F&M Bank - Cannon Valley                           Dundas, MN                1               27.9     11/01/99
        F&M Bank - Central                              Stevens Point, WI            5              140.9     11/01/99
        F&M Bank - East Troy                              East Troy, WI              2               59.2     11/01/99
        F&M Bank - Elkhorn                                 Elkhorn, WI               1               96.9     11/01/99
        F&M Bank - Jefferson                              Jefferson, WI              2               96.6     11/01/99
        F&M Bank - Grant County                           Fennimore, WI              4              134.4     11/01/99
        F&M Bank - Kiel                                     Kiel, WI                 1               45.2     11/01/99
        F&M Bank - Lakeland                               Woodruff, WI               7              198.9     11/01/99
        F&M Bank - Landmark                              Clear Lake, WI              4               45.4     11/01/99
        F&M Bank - Northeast                               Pulaski, WI              11              377.6     11/01/99
        F&M Bank - Prairie du Chien                   Prairie du Chien, WI           5               98.5     11/01/99
        F&M Bank - Superior                               Superior, WI               2               35.7     11/01/99
        F&M Bank - Winnebago County                         Omro, WI                 3              104.7     11/01/99
    BancSecurity Corporation
        F&M Bank - Iowa Central (3)                     Marshalltown, IA            14              614.7     11/01/99
    F&M Bank - Algoma                                      Algoma, WI                3              100.9     11/01/99
    F&M Bank - Appleton                                   Appleton, WI               4               81.6     11/01/99
    F&M Bank - Brodhead                                   Brodhead, WI               1               36.2     11/01/99
    F&M Bank - Darlington, N.A.                          Darlington, WI              4              113.9     11/01/99
    F&M Bank - Hilbert                                     Hilbert, WI               3               33.3     11/01/99
    F&M Bank - Kaukauna                                   Kaukauna, WI               5              160.6     11/01/99
    F&M Bank - New London                                New London, WI              1               39.3     11/01/99
    F&M Bank - Waushara County                             Watoma, WI                4              107.4     11/01/99
- - --------------------------------------------------------------------------------------------------------------------------
</TABLE>


(1)  Consolidated totals of Citizens Bank include its wholly owned non-bank
     subsidiaries, Citizens Commercial Leasing Corporation ("CCLC"), CB
     Financial Services, Inc., Citizens Bank Mortgage Corporation and Citizens
     Title Services. All of the named subsidiaries are based in Flint, Michigan
     except for CCLC, which is based in Saginaw, Michigan.

(2)  At year-end 1999, F&M Bancorporation, Inc. directly owned two bank holding
     companies and eight banks. Effective January 3, 2000, Citizens dissolved
     the two bank holding companies and consolidated the Wisconsin banks into
     one Wisconsin bank.

(3)  Consolidated totals of F&M Bank - Iowa Central include its wholly owned
     non-bank subsidiary, Security Bancservices, Inc. based in Marshalltown,
     Iowa.


                                       3


<PAGE>   4

       Citizens' subsidiary banks are full service commercial banks offering a
variety of financial services to corporate, commercial, correspondent and
individual bank customers. These services include commercial, agricultural,
mortgage and consumer lending, demand and time deposits, trust services,
investment services, safe deposit facilities, and other financial products and
services. The bank subsidiaries are wholly owned by Citizens and operate through
226 banking offices located in the five midwestern states of Michigan,
Wisconsin, Illinois, Iowa, and Minnesota. Areas served include most of
Michigan's Lower Peninsula, most of Wisconsin, central Iowa, the western
suburban market of Chicago, Illinois and Dundas, Minnesota.
       On December 29, 1994, the State of Michigan amended the State's Banking
Code of 1969 to allow banks to engage in the insurance business and to own an
insurance agency. Although the National Bank Holding Company Act prohibits the
holding company from direct ownership of an insurance agency, banks within the
holding company may now do so. During the second quarter of 1997, Citizens Bank
established a wholly owned subsidiary, called CB Financial Services, Inc.
Through this subsidiary, Citizens sells life insurance and annuity products to
clients subject to certain restrictions.
       In 1997, Citizens Bank established a wholly owned subsidiary, Citizens
Bank Mortgage Corporation, to originate new mortgage loans to be sold to the
secondary market or held in portfolio. The Mortgage Corporation provides
residential mortgage services similar to those previously provided by Citizens
Bank. Also in 1997, Citizen Bank established a wholly owned subsidiary, Citizens
Title Services, Inc. This subsidiary provides title insurance to buyers and
sellers of residential and commercial mortgage properties including those
occurring due to loan refinancing.
       Citizens Commercial Leasing Company, a wholly owned subsidiary of
Citizens Bank, participates in high quality indirect lease participations.
Security Bancservices, Inc, a wholly owned subsidiary of F&M Bank - Iowa
Central, sells property and casualty insurance to clients in the F&M markets.
       On July 1, 1997, Citizens merged with CB Financial Corporation
headquartered in Jackson, Michigan. The merger resulted in an expanded presence
in the greater Jackson/Lansing markets and in northwestern Michigan. As part of
the merger, Citizens issued 6.3 million shares of its common stock for all of
the outstanding shares of CB Financial Corporation. The merger was accounted for
as a pooling of interests resulting in the restatement of all financial
information presented.
       On October 8, 1999, Citizens acquired seventeen former Bank One offices
located in the northern section of Michigan's Lower Peninsula. The transaction
was accounted for as a purchase; accordingly, the assets acquired and
liabilities assumed were recorded at estimated fair value. The purchase added
approximately $88 million in loans and $442 million in deposits. Citizens paid a
premium of $36.1 million or 10.13% on certain core deposits. The acquired
branches' results of operations have been included in Citizens' consolidated
totals from the date of acquisition only.
       On November 1, 1999, Citizens expanded into the new market areas of
Wisconsin, Iowa, and Minnesota through the merger with F&M Bancorporation, Inc.
("F&M") headquartered in Kaukauna, Wisconsin. As part of the merger, Citizens
issued 21.0 million shares of its common stock, based on a fixed exchange ratio
of 1.303, for all of the outstanding shares of F&M. The merger was accounted for
as a pooling of interests resulting in the restatement of all financial
information presented. Addition information regarding Citizens' mergers and
acquisition is incorporated by reference from Exhibit 13 on page 27 of such
document under the caption, "Note 2. Mergers and Acquisition."

Lines of Business
       The performance of Citizens is monitored by an internal profitability
measurement system that provides line of business results and key performance
measures. Citizens operates along the following business lines: Commercial
Banking, Retail Banking, Financial Services, F&M, and all other. Additional
information regarding Citizens' business lines is incorporated herein by
reference from Exhibit 13 on page



                                       4


<PAGE>   5

4 and on pages 39 and 40 of such document under the captions, "Lines of Business
Reporting" and "Note 17. Lines of Business", respectively.

Competition
       The financial services industry is highly competitive. The banking
subsidiaries compete with other commercial banks, many of which are subsidiaries
of other bank holding companies, for loans, deposits, trust accounts and other
business on the basis of interest rates, fees, convenience and quality of
service. They also actively compete with a variety of other financial services
organizations including savings and loan associations, finance companies,
mortgage banking companies, brokerage firms, credit unions and other
organizations. The non-banking subsidiaries compete with other companies in
related industries including other leasing companies, title insurance companies,
mortgage banking companies, insurance companies and other organizations.
       Loans comprise 75.3% of Citizens' average assets and are made in the
normal course of business to individuals, partnerships, municipalities and
corporations. Credit is extended to customers within the commercial, commercial
mortgage, real estate construction, real estate mortgage, consumer and lease
financing categories. Consumer loans are primarily composed of automobile,
personal, marine, home equity and bankcard loans and represent 25.4% of the 1999
average loan portfolio. Consumer loans originated follow strict corporate credit
underwriting procedures. Real estate mortgage loan extensions are primarily
first liens on one to four family structures and unless insured by a private
mortgage insurance company typically have traditional loan to appraisal ratios
of 80% or less. Commercial and commercial mortgage loan originations generally
do not rely on the performance of the real estate market to generate funds for
repayment and do not represent a concentration in any one industry or company.
Additional information on the composition of the loan portfolio and the related
nonperforming assets is incorporated herein by reference from Exhibit 13 on
pages 12 to 14 of such document under the captions "Loans" and "Nonperforming
Assets".
       Mergers between and the expansion of financial institutions both within
and outside of our primary Midwest banking markets have provided significant
competitive pressure in those markets. In addition, the passage of federal
interstate banking legislation has expanded the banking market and heightened
competitive forces. The affect of this legislation is further discussed under
the caption "Supervision and Regulation".
       On November 1, 1999, Citizens entered the Wisconsin, Iowa, and Minnesota
markets through a merger with F&M headquartered in Kaukauna, Wisconsin, which
included twenty subsidiary banks in Wisconsin, one subsidiary bank in Iowa, and
one subsidiary bank in Minnesota. Most of the banks are located in small cities
and rural areas that have diverse economies and a mix of manufacturing, service,
retailing, and agricultural businesses. F&M has a dominant market position in
many of the markets it serves, which we believe provides a competitive
advantage. The local management of the banks was retained and the local boards
of directors were consolidated into regional "community boards". Effective
January 3, 2000, the twenty Wisconsin bank charters were consolidated into one
bank.
       Other factors such as employee relations and environmental laws also
impact Citizens' competitiveness. Presently, none of Citizens' employees are
covered by collective bargaining agreements and Citizens maintains a favorable
relationship with its employees. The impact of environmental laws is further
discussed in "Item 3. Legal Proceedings" of this document.

Supervision and Regulation
       Citizens is subject to supervision and regulation by the Federal Reserve
Board under the Bank Holding Company Act of 1956, as amended (the "Act"). The
Act requires Citizens to provide notice or obtain the prior approval of the
Board of Governors of the Federal Reserve System for bank and non-bank


                                       5



<PAGE>   6

acquisitions and prescribes limitations on the non-banking activities of
Citizens. As a bank holding company, Citizens and its subsidiaries are able only
to conduct the business of banking and activities so closely related to banking
or managing or controlling banks as to be a proper incident thereto.
     Citizens' subsidiary banks are subject to various regulatory authorities.
Citizens Bank is chartered by the State of Michigan and is subject to
supervision, regulation and examination by the Financial Institutions Bureau of
the State of Michigan as well as the Federal Reserve Board. Citizens Bank -
Illinois, N.A. is chartered under federal law and is subject to supervision,
regulation and examination by the Comptroller of the Currency. All but one of
the Wisconsin F&M Banks are incorporated under the banking laws of Wisconsin and
is therefore subject to supervision, regulation, and examination by the
Wisconsin Department of Financial Institutions. F&M Bank -Darlington is
chartered under federal law and is subject to supervision, regulation and
examination by the Comptroller of the Currency. The other F&M Banks are
chartered in Iowa and Minnesota, and are subject to the supervision, regulation,
and examination by the Iowa Division of Banking and the Minnesota Department of
Commerce, respectively. All of Citizens' subsidiary banks are subject to
supervision and examination by the Federal Deposit Insurance Corporation
("FDIC"), as their deposits are insured by the FDIC to the extent provided by
the law. In addition, all banks are members of the Federal Reserve System.
Citizens' non-bank companies are supervised and examined by the Federal Reserve
System.
     Certain regulatory matters concerning capital adequacy guidelines for
Citizens and its banking subsidiaries, limitations on the payment of dividends
to Citizens by its banking subsidiaries and maintenance of minimum average
reserve balances by the banking subsidiaries with the Federal Reserve Bank are
incorporated herein by reference from Exhibit 13 on pages 16, 17 and 41 of such
document under the captions, "Liquidity and Debt Capacity" and "Note 18
Regulatory Matters", respectively.
     The 1994 passage of the federal Riegle-Neal Interstate Banking and
Branching Efficiency Act allows states the ability to enact legislation
permitting interstate branching but gives them no choice in opting out of
provisions related to interstate banking. The effect of the interstate banking
provisions do not impact Michigan or neighboring states since these states have
previously passed legislation allowing bank holding companies to own bank
affiliates in multiple states. On November 29, 1995 the Michigan legislature
passed Public Act 202 permitting interstate branching. This law allows a bank
the ability to establish branches outside of the State of Michigan provided that
state adopts similar legislation. The law may impact Citizens as states adjacent
to Michigan pass similar legislation. The impact of this is not expected to
significantly affect Citizens' strategic plan, except to allow potentially
greater consolidation benefits if Citizens continues to acquire additional banks
outside of Michigan.
     The Financial Institutions Reform, Recovery, and Enforcement Act of 1989
("FIRREA") adopted in August 1989 significantly affected financial institutions.
Key provisions of FIRREA provided for the acquisition of thrift institutions by
bank holding companies (previously only failing thrifts were permitted to be
acquired), increased deposit insurance assessments for insured banks, redefined
applicable capital standards for banks and thrifts, broadened the enforcement
power of federal bank regulatory agencies, and required that any FDIC-insured
depository institution be held liable for any loss incurred by the FDIC in
connection with the default of any commonly controlled FDIC-insured depository
institution or any assistance provided by the FDIC to any such institution in
danger of default.
     The Federal Deposit Insurance Corporation Improvement Act of 1991
("FDICIA"), signed into law on December 19, 1991, imposed on banks relatively
detailed standards and mandated the development of additional regulations
governing nearly every aspect of the operations and management of banks, in
addition to many aspects of bank holding companies. Some of the major provisions
contained in FDICIA includes recapitalization of the Bank Insurance Fund
("BIF"), a risk-based insurance premium assessment system, a capital-based
supervision system that links supervisory intervention to the deterioration of a
bank's capital level, new auditing and accounting and examination requirements,
and mandated standards


                                       6



<PAGE>   7

for bank lending and operation.
     FDICIA provides the FDIC with the authority to impose assessments on
insured BIF member depository institutions to maintain the fund at the
designated reserve ratio defined in FDICIA. In response to the BIF attaining the
designated reserve ratio in 1995, FDIC assessments were effectively eliminated
in 1996 for banks meeting the requirements of supervisory risk subgroup 1.A.
"well capitalized". All of Citizens' subsidiaries have sufficient capital to
maintain this designation (the FDIC's highest rating). In 2000, banks
maintaining the "well capitalized" designation will again have no FDIC insurance
premium requirements except for a special base assessment of approximately 2.08
cents per 100 dollars of deposits. This special assessment, authorized by the
Deposit Insurance Funds Act of 1996 passed by Congress on September 30, 1996,
applies to all commercial banks regardless of risk subgroup classification.
Further regulatory changes could impact the amount and type of assessments paid
by Citizens' subsidiary banks.
     The enactment of the Graham-Leach-Bliley Act of 1999 (the "GLB Act") sweeps
away large parts of a regulatory framework that had its origins in the
Depression Era of the 1930s. Effective March 11, 2000, new opportunities will be
available for banks, other depository institutions, insurance companies and
securities firms to enter into combinations that permit a single financial
services organization to offer customers a more complete array of financial
products and services. The GLB Act provides a new regulatory framework for
regulation through the financial holding company, which will have as its
umbrella regulator the Federal Reserve Board. Functional regulation of the
financial holding company's separately regulated subsidiaries will be conducted
by their primary functional regulator. The GLB Act makes satisfactory or above
Community Reinvestment Act compliance for insured depository institutions and
their financial holding companies necessary in order for them to engage in new
financial activities. The GLB Act provides a federal right to privacy of
non-public personal information of individual customers. Citizens Banking
Corporation and its subsidiaries are also subject to certain state laws that
deal with the use and distribution of non-public personal information.

Monetary Policy
       The monetary and fiscal policies of regulatory authorities, including the
Federal Reserve System, strongly influence the banking industry. Through open
market securities transactions, variations in the discount rate and the
establishment of reserve requirements, the Board of Governors of the Federal
Reserve System exerts considerable influence on interest rates and the supply of
money and credit. The effect of these measures on future business and earnings
of Citizens cannot be predicted.

Environmental Matters
       Citizens' primary exposure to environmental risk is through its trust
services and its lending activities. In each instance, Citizens has policies and
procedures in place to mitigate its environmental risk exposures. With respect
to lending activities, environmental site assessments at the time of loan
origination are mandated by Citizens to confirm collateral quality as to
commercial real estate parcels posing higher than normal potential for
environmental impact, as determined by reference to present and past uses of the
subject property and adjacent sites. Environmental assessments are also mandated
prior to any foreclosure activity involving non-residential real estate
collateral. In the case of trust services, Citizens utilizes various types of
environmental transaction screening to identify actual and potential risks
arising from any proposed holding of non-residential real estate for trust
accounts. Consequently Citizens does not anticipate any material effect on
capital expenditures, earnings or the competitive position of itself or any of
its subsidiaries with regard to compliance with federal, state or local
environmental protection laws or regulations. Additional information is provided
in the "Item 3. Legal Proceedings" section of this document.


                                       7


<PAGE>   8


ITEM 2.  PROPERTIES
       Citizens' offices are located at One Citizens Banking Center, 328 South
Saginaw Street, Flint, Michigan in the main office building of Citizens Bank,
its largest bank subsidiary. Citizens' subsidiaries operate through 226 banking
offices. Of these, 42 are leased and the remaining are owned. Rent expense on
the leased properties totaled $2,264,373 in 1999.
       The banking offices are located in various communities throughout the
states of Michigan and Wisconsin, parts of Iowa, in Dundas, Minnesota, and in
the western suburbs of Chicago, Illinois. At certain Citizens Bank locations a
portion of the office buildings are leased to tenants.
       Additional information related to the property and equipment owned or
leased by Citizens and its subsidiaries is incorporated herein by reference from
Exhibit 13 on page 30 under the caption "Note 7.
Premises and Equipment" of such document.

ITEM 3.  LEGAL PROCEEDINGS
       Citizens and its subsidiaries are parties to a number of lawsuits
incidental to its business. Although litigation is subject to many uncertainties
and the ultimate exposure with respect to many of these matters cannot be
ascertained, management does not believe the ultimate outcome of these matters
will have a materially adverse effect on the financial condition or the
liquidity of Citizens.
       From time to time, certain of Citizens' subsidiaries are notified by
applicable environmental regulatory agencies, pursuant to State or Federal
environmental statutes or regulations, that they may be potentially responsible
parties ("PRPs") for environmental contamination on or emanating from properties
currently or formerly owned. Typically, exact costs of remediating the
contamination cannot be fully determined at the time of initial notification.
While, as PRPs, these subsidiaries are potentially liable for the costs of
remediation, in most cases, a number of other PRPs have been identified as being
jointly and severally liable for remediation costs. Additionally, in certain
cases, statutory defenses to liability for remediation costs may be asserted
based on the subsidiaries' status as lending institutions that acquired
ownership of the contaminated property through foreclosure. Citizens' management
is not presently aware of any environmental liabilities that pose a reasonable
possibility of future material impact on Citizens or its earnings. It is
Citizens' policy to establish and accrue appropriate reserves for all such
identified exposures during the accounting period in which a loss is deemed to
be probable and the amount is determinable.

ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS
       No matters were submitted during the fourth quarter of 1999 to a vote of
security holders through the solicitation of proxies or otherwise.



                                       8

<PAGE>   9


                                     PART II
- - --------------------------------------------------------------------------------

ITEM 5.  MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED SHAREHOLDER'S MATTERS
       The information required by this item is incorporated herein by reference
from Exhibit 13 on page 20 under the caption "Table 12. Selected Quarterly
Information" of such document.
       The approximate number of shareholders of the Registrant's common stock
is 15,000 as of December 31, 1999. This number includes an estimate for
individual participants in the security positions of certain shareholders of
record.
       Restrictions on the Registrant's ability to pay dividends are
incorporated herein by reference from Exhibit 13 on page 41 under the caption
"Note 18. Regulatory Matters" of such document.


ITEM 6.  SELECTED FINANCIAL DATA
       The information required by this item is incorporated herein by reference
from Exhibit 13 on page 1 under the caption "Table 1. Selected Financial Data"
of such document.


ITEM 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
         OF OPERATIONS
       Management's Discussion and Analysis of Financial Condition and Results
of Operations required by this item is incorporated herein by reference from
Exhibit 13 on pages 1 through 21 of such document.


ITEM 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
       The information required by this item is incorporated by reference from
Exhibit 13 on pages 17 and 18 under the captions "Interest Rate Risk" and
"Interest Rate Sensitivity" of such document.


ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
       The Financial Statements are incorporated herein by reference from
Exhibit 13 on pages 22 through 46 of such document.
       Supplementary data of Citizens' quarterly results of operations required
by this item are incorporated herein by reference from Exhibit 13 on page 20 of
such document under the caption "Table 12. Selected Quarterly Information".


ITEM 9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
         FINANCIAL DISCLOSURE
       None.




                                       9

<PAGE>   10


                                    PART III
- - --------------------------------------------------------------------------------

ITEM 10.  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT
       The information required by this item appears in Citizens' proxy
statement for its annual meeting of shareholders to be held April 18, 2000
("1999 Proxy Statement"), and is incorporated herein by reference as follows:

       Regulation S-K Item 401 disclosures: Appear under the captions "Election
       of Directors" and "Executive Officers" on pages 5 through 8 and on pages
       11 through 13, respectively, of the 1999 Proxy Statement.

       Regulation S-K Item 405 disclosure: Appears under the caption "Section
       16(a) Beneficial Ownership Reporting Compliance" on page 24 of the 1999
       Proxy Statement.


ITEM 11.  EXECUTIVE COMPENSATION
       The information required by this item appears under the caption
"Compensation of Directors," on page 10 and under the captions "Executive
Compensation", "Compensation and Human Resources Committee Report on Executive
Compensation", "Shareholder Return", and "Compensation Committee Interlocks and
Certain Transactions and Relationships" on pages 14 through 24 of the 1999 Proxy
Statement, and is incorporated herein by reference.


ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
       The information required by this item appears under the captions
"Security Ownership of Certain Beneficial Owners" and "Security Ownership of
Management" on page 2 and on pages 3 and 4, respectively, of the 1999 Proxy
Statement, and is incorporated herein by reference.


ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
       The information required by this item appears under the caption
"Compensation Committee Interlocks and Certain Transactions and Relationships"
on pages 23 and 24 of the 1999 Proxy Statement, and is incorporated herein by
reference.




                                       10

<PAGE>   11


                                     PART IV
- - --------------------------------------------------------------------------------

ITEM 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K
(a)  1. Financial Statements:
         The following consolidated financial statements of Citizens, Report of
         Ernst & Young LLP, Independent Auditors and Report of Wipfli Ulrich
         Bertelson LLP, Independent Auditors are incorporated by reference under
         Item 8 "Financial Statements and Supplementary Data" of this document:
              Consolidated Balance Sheets
              Consolidated Statements of Income
              Consolidated Statements of Changes in Shareholders' Equity
              Consolidated Statements of Cash Flows
              Notes to Consolidated Financial Statements
              Report of Ernst & Young LLP, Independent Auditors
              Report of Wipfli Ullrich Bertelson LLP, Independent Auditors

     2. Financial Statement Schedules:
         All schedules are omitted - see Item 14(d) below.

     3. Exhibits:
         The exhibits listed on the "Exhibit Index" on pages 14 through 16 of
         this report are filed herewith and are incorporated herein by
         reference.

(b)  Reports on Form 8-K
         Form 8-K, filed November 9, 1999, announcing completion of Citizens'
         merger with F&M Bancorporation, Inc. on November 1, 1999.

(c)  Exhibits:
         The "Exhibit Index" is filed herewith on pages 14 through 16 of this
         report and is incorporated herein by reference.

(d)  Financial Statement Schedules:
         All financial statement schedules normally required by Article 9 of
         Regulation S-X are omitted since they are either not applicable or the
         required information is shown in the consolidated financial statements
         or notes thereto.



                                       11


<PAGE>   12


                                   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.


CITIZENS BANKING CORPORATION
(Registrant)

by /s/Robert J. Vitito                                   Date:   March  24, 2000
- - -------------------------------------
Robert J. Vitito
Chairman, President and Chief Executive Officer

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 the dates indicated.

<TABLE>
<CAPTION>
               Signature                                    Capacity                                    Date
- - ----------------------------------------  ----------------------------------------------  ----------------------------------
<S>                                      <C>                                             <C>
/s/Robert J. Vitito                       Chairman of the Board, President,                        March 24, 2000
- - ----------------------------------------  Chief Executive Officer and Director
Robert J. Vitito

/s/John W. Ennest                         Vice Chairman of the Board,                              March 24, 2000
- - ----------------------------------------  Chief Financial Officer,
John W. Ennest                            Treasurer and Director

/s/Edward P. Abbott                       Director                                                 March 24, 2000
- - ----------------------------------------
Edward P. Abbott

/s/Hugo E. Braun, Jr.                     Director                                                 March 24, 2000
- - ----------------------------------------
Hugo E. Braun, Jr.

/s/Jonathan E. Burroughs II               Director                                                 March 24, 2000
- - ----------------------------------------
Jonathan E. Burroughs II

/s/Joseph P. Day                          Director                                                 March 24, 2000
- - ----------------------------------------
Joseph P. Day

/s/Lawrence O. Erickson                   Director                                                 March 24, 2000
- - ----------------------------------------
Lawrence O. Erickson

/s/Ronald E. Fenton                       Director                                                 March 24, 2000
- - ----------------------------------------
Ronald E. Fenton

/s/Victor E. George                       Director                                                 March 24, 2000
- - ----------------------------------------
Victor E. George
</TABLE>


                                       12




<PAGE>   13

<TABLE>
<CAPTION>
               Signature                                    Capacity                                    Date
- - ----------------------------------------  ----------------------------------------------  ----------------------------------
<S>                                      <C>                                             <C>
/s/William J. Hank                        Director                                                 March 24, 2000
- - ----------------------------------------
William J. Hank

/s/Gail E. Janssen                        Director                                                 March 24, 2000
- - ----------------------------------------
Gail E. Janssen

/s/Stephen J. Lazaroff                    Director                                                 March 24, 2000
- - ----------------------------------------
Stephen J. Lazaroff

/s/William F. Nelson, Jr.                 Director                                                 March 24, 2000
- - ----------------------------------------
William F. Nelson, Jr.

/s/Robert C. Safford                      Director                                                 March 24, 2000
- - ----------------------------------------
Robert C. Safford

/s/William C. Shedd                       Director                                                 March 24, 2000
- - ----------------------------------------
William C. Shedd

/s/James E. Truesdell, Jr.                Director                                                 March 24, 2000
- - ----------------------------------------
James E. Truesdell, Jr.

/s/Ada C. Washington                      Director                                                 March 24, 2000
- - ----------------------------------------
Ada C. Washington

/s/Charles R. Weeks                       Director                                                 March 24, 2000
- - ----------------------------------------
Charles R. Weeks

/s/Kendall B. Williams                    Director                                                 March 24, 2000
- - ----------------------------------------
Kendall B. Williams

/s/James L. Wolohan                       Director                                                 March 24, 2000
- - ----------------------------------------
James L. Wolohan
</TABLE>



                                       13

<PAGE>   14


                          CITIZENS BANKING CORPORATION
                         1999 Annual Report on Form 10-K

                                  EXHIBIT INDEX
                   (FILED AS PART OF THIS REPORT ON FORM 10-K)

<TABLE>
<CAPTION>
  Exhibit                                                                                                        Form 10-K
    No.                                           Exhibit                                                        Page No.
  -------  ------------------------------------------------------------------------------------------------      ---------

<S>       <C>                                                                                                   <C>
     3     Restated Articles of Incorporation, as amended. (incorporated by reference from Exhibit 3(a) of
               Citizens' 1995 Annual Report on Form 10K, file number 0-10535).                                     N/A

     3.1   Amended and  Restated  Bylaws  (incorporated  by reference  from Exhibit 3(b) of Citizens'  1997
               Third Quarter Report on Form 10-Q, file number 0-10535).                                            N/A

     4     Rights  Agreement,  dated July 20, 1990,  between  Citizens and Citizens  Bank,  as Rights Agent
               (incorporated  by reference from Exhibit 4(a) of Citizens' Report on Form 8-K filed July 26,
               1990, file number 0-10535).                                                                         N/A

    10     Citizens Banking  Corporation  Second Amended Stock Option Plan  (incorporated by reference from
               Exhibit 4 of Citizens'  registration  statement  on Form S-8 filed May 5,  1992--Registration
               No. 33-47686).                                                                                      N/A

    10.1   Composite  form of "Stock Option  Agreement"  executed  between  Citizens and certain  executive
               officers of Citizens  pursuant to Citizens'  Second Amended Stock Option Plan  (incorporated
               by reference  from Exhibit 10(e) of Citizens'  1992 Annual Report on Form 10-K,  file number
               0-10535).                                                                                           N/A

    10.2   Citizens Banking Corporation Management Incentive Compensation Program (incorporated by reference
               from pages 18 and 19 of Citizens' Proxy Statement for its 1999 Annual Meeting of Shareholders
               under the caption "Management Incentive Plan", file number 0-10535).                                N/A

    10.3   Citizens Banking Corporation Amended and Restated Director's Deferred Compensation Plan
               (incorporated by reference from Exhibit 10(h) of Citizens' 1994 Annual Report on Form 10-K,
               file number 0-10535).                                                                               N/A

    10.4   Deferred Compensation Agreement for Charles R. Weeks, as amended, and related Citizens Banking
               Corporation Deferred Benefits Trust Agreement (incorporated by reference from Exhibit 10(d) of
               Citizens' 1989 Annual Report on Form 10-K, file number 0-10535).                                    N/A

    10.5   Citizens Banking Corporation Supplemental Retirement Benefits Plan for Charles R. Weeks, as
               amended (incorporated by reference from Exhibit 10(e) of Citizens' 1989 Annual Report on
               Form 10-K, file number 0-10535).                                                                    N/A
</TABLE>


                                       14

<PAGE>   15
<TABLE>
<CAPTION>

  Exhibit                                EXHIBIT INDEX (continued)                                              Form 10-K
    No.                                           Exhibit                                                        Page No.
  -------  ------------------------------------------------------------------------------------------------      ---------

<S>       <C>                                                                                                   <C>
    10.6   Citizens  Banking  Corporation  Stock Option Plan for Directors  (incorporated by reference from
               Exhibit 99 of Citizens' registration statement on Form S-8 filed July 21,  1995--Registration
               No. 33-61197).                                                                                      N/A

    10.7   Citizens  Banking  Corporation  Amended  and  Restated  Section  401(k)  Plan  (incorporated  by
               reference from Exhibit 99.1 of Citizens'  registration statement on Form S-8 filed August 2,
               1996 - Registration No. 333-09455).                                                                 N/A

    10.8   Citizens  Banking  Corporation  Supplemental  Retirement  Benefits  Plan  for  John  W.  Ennest.
               (incorporated  by reference from Exhibit 10(p) of Citizens' 1996 Annual Report on Form 10-K,
               file number 0-10535).                                                                               N/A

    10.9   Citizens  Banking  Corporation  Supplemental  Retirement  Benefits  Plan for  Robert J.  Vitito.
               (incorporated  by reference from Exhibit 10(q) of Citizens' 1996 Annual Report on Form 10-K,
               file number 0-10535).                                                                               N/A

    10.10  Citizens Banking Corporation Third Amended Stock Option Plan (incorporated by reference from
               Exhibit 10(r) of Citizens' 1997 Second Quarter Report on Form 10-Q, file number 0-10535).           N/A

    10.11  Citizens Banking Corporation Change in Control Agreement (incorporated by reference form Exhibit
               10(s) of Citizens' 1997 Annual Report on Form 10-K, file number 0-10535).                           N/A

    10.12  F&M Bancorporation, Inc.'s Deferred Compensation Agreement with Gail E. Janssen (incorporated           N/A
               by reference from Exhibit 10.6 of F&M's Report on Form 10-K for the year ended December 31,
               1992, file number 0-14553).                                                                         N/A

    10.13  F&M Bancorporation, Inc.'s Officers' Stock Purchase Plan (incorporated by reference from F&M's
               Proxy Statement for its 1996 Annual Meeting of Shareholders under the caption "Officers'
               Stock Purchase Plan", file number 0-14553).                                                         N/A

    10.14  Employment Agreement dated as of August 1, 1998 between F&M Bancorporation Inc. and John W.
               Johnson (incorporated by reference from Exhibit 10.1 of F&M's Report on Form 10-Q for the
               quarter ended September 30, 1998, file number 0-14553).                                             N/A

    11     Computation  of Per Share Earnings  (incorporated  by reference from Exhibit 13 on page 35 under
               the caption "Note 13. Earnings Per Share" of such document).                                        N/A

    13     Citizens Banking Corporation 1999 Annual Report (except as to portions expressly incorporated
               herein, said Annual Report is included only for information).                                       (1)

</TABLE>


                                       15



<PAGE>   16

<TABLE>
<CAPTION>

  Exhibit                                 EXHIBIT INDEX (continued)                                              Form 10-K
    No.                                           Exhibit                                                         Page No.
  -------  ------------------------------------------------------------------------------------------------      ---------

<S>       <C>                                                                                                   <C>
    21     Subsidiaries of the Registrant                                                                          (1)

    23     Consent of Ernst & Young LLP                                                                            (1)

    23.1   Consent of Wipfli Ullrich Bertelson LLP                                                                 (1)

    27     Financial Data Schedules                                                                                (1)

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

N/A - not applicable, exhibit incorporated by reference.

(1) Exhibit included on the following pages of this Annual Report on Form 10-K
filing.

All other Exhibits required to be filed with this Form are not applicable and
have therefore been omitted.


                                       16

<PAGE>   1

                                                                      Exhibit 13
                                                                     (Form 10-K)











                          CITIZENS BANKING CORPORATION



                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                                       AND
                        CONSOLIDATED FINANCIAL STATEMENTS



                                       17


<PAGE>   2
                                TABLE OF CONTENTS

<TABLE>


<S>                                                                                          <C>
I.       Financial Review including
           Management's Discussion and Analysis.........................................      2
              Mergers, Acquisitions and Other Initiatives...............................      2
              Earnings Summary..........................................................      3
              Lines of Business Reporting...............................................      4
              Net Interest Income.......................................................      4
              Provision and Allowance for Loan Losses...................................      7
              Noninterest Income and Expense............................................      8
              Financial Condition.......................................................     10
              Liquidity and Debt Capacity, Interest Rate Risk
                and Impact of Inflation.................................................     16
              Other.....................................................................     19
              Forward-Looking Statements................................................     19
              Year Ended December 31, 1998
                Compared with 1997......................................................     20

II.      Consolidated Financial Statements..............................................     22

              Consolidated Balance Sheets...............................................     22
              Consolidated Statements of Income.........................................     23
              Consolidated Statements of Changes
                in Shareholders' Equity.................................................     24
              Consolidated Statements of Cash Flow......................................     25

III.     Notes to Consolidated Financial Statements.....................................     26

IV.      Report of Independent Auditors.................................................     44

V.       Report of Management...........................................................     46
</TABLE>
<PAGE>   3
<TABLE>
<CAPTION>
- - ------------------------------------------------------------------------------------------------------------------------------------
TABLE 1. SELECTED FINANCIAL DATA(1)
(in thousands, except per share data)                         1999           1998           1997          1996           1995
- - ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                    <C>             <C>           <C>             <C>           <C>
FOR THE YEAR
  Net interest income                                     $  310,490    $   293,044   $   274,857     $   250,313   $   233,114
  Provision for loan losses                                   24,675         16,528        20,511          15,725         9,918
  Investment securities gains (losses)                        (3,052)           475          (572)            827           355
  Noninterest income                                          84,196         70,793        58,969          57,376        51,091
  Noninterest expense before special charge                  236,778        218,219       208,921         201,460       193,207
  Special charge:
  Before-tax                                                  40,198            ---        23,734             ---           ---
  After-tax                                                   28,403            ---        17,263             ---           ---
  Income taxes                                                27,989         39,283        25,197          26,727        23,332
  Net income                                                  61,994         90,282        54,891          64,604        58,103
  Net operating income (2)                                    97,154         90,282        72,154          64,604        58,103
  Cash dividends (3)                                          30,035         22,991        19,286          17,890        16,131

PER COMMON SHARE DATA
  Net income:
   Basic                                                  $     1.29    $      1.86   $      1.17     $      1.41   $      1.33
   Diluted                                                      1.28           1.84          1.15            1.40          1.31
   Diluted - net operating income (2)                           2.00           1.84          1.51            1.40          1.31
  Cash dividends (3)                                           0.915           0.82          0.74            0.67          0.60
  Book value, end of year                                      13.32          14.07         12.93           12.36         11.66
  Market value, end of year                                    22.38          33.75         34.50           21.00         19.83

AT YEAR END
  Assets                                                  $7,899,357    $ 6,930,533   $ 6,630,974     $ 6,173,515   $ 5,835,888
  Loans                                                    5,917,483      5,264,706     5,074,230       4,517,814     3,961,255
  Deposits                                                 6,128,998      5,772,792     5,514,313       5,176,033     4,900,233
  Long-term debt                                             127,104        226,171       179,191         114,732       138,719
  Shareholders' equity                                       633,669        680,501       610,775         565,264       529,787


AVERAGE FOR THE YEAR
  Assets                                                  $7,342,167    $ 6,792,829   $ 6,439,737     $ 5,972,417   $ 5,558,425
  Earning assets                                           6,875,643      6,367,284     6,033,874       5,550,463     5,138,033
  Loans                                                    5,528,963      5,159,584     4,843,507       4,258,404     3,774,001
  Deposits                                                 5,906,664      5,616,894     5,359,464       5,012,387     4,654,600
  Interest-bearing deposits                                5,002,135      4,787,143     4,602,093       4,284,919     3,964,099
  Repurchase agreements and other short-term borrowing       478,920        202,639       259,040         227,415       191,050
  Long-term debt                                             210,289        228,969       144,306         107,669       137,590
  Shareholders' equity                                       672,227        655,034       597,242         546,463       500,160


FINANCIAL RATIOS
  Return on average:(4)
    Shareholders' equity                                        9.22%         13.78%         9.19%          11.82%        11.62%
    Earning assets                                              1.41           1.42          1.20            1.16          1.13
    Assets                                                      0.84           1.33          0.85            1.08          1.05
  Average shareholders' equity/avg. assets                      9.16           9.64          9.27            9.15          9.00
  Dividend payout ratio (3)                                    59.13          40.49         61.21           42.17         42.22
  Net interest margin (FTE)                                     4.69           4.79          4.74            4.69          4.73
  Tier I leverage                                               7.21           8.95          8.00             N/A           N/A
  Risk-based capital:
    Tier I capital                                              9.23          11.01         10.50             N/A           N/A
    Total capital                                              10.48          12.26         11.76             N/A           N/A

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

(1)  Except as indicated, all financial data have been restated for stock splits
     and pooling of interests transactions. Results of operations for
     acquisitions accounted for as purchases have been included effective with
     the respective dates of acquisition.

(2)  Net operating income is based on net income that excludes special charges,
     restructuring and other one-time expenses incurred in the connection with
     acquisitions and other corporate initiatives in 1999 and 1997, as discussed
     herein.

(3)  Cash dividends and cash dividends per share are for Citzens Banking
     Corporation only, not restated for pooling of interests.

(4)  Returns on average assets and shareholders' equity computed on net
     operating income were 1.32% and 14.45%, respectively in 1999 and 1.12% and
     12.08%, respectively in 1997.

                                     Page 1
<PAGE>   4

MANAGEMENT'S DISCUSSION AND ANALYSIS

       The following commentary presents Management's discussion and analysis of
Citizens' financial condition and results of operations. All financial data have
been restated to give effect to mergers accounted for on a pooling of interests
basis and stock splits in previous periods. The results of other acquisitions,
accounted for as purchases, have been included effective with the respective
dates of acquisition.

MERGERS, ACQUISITIONS AND OTHER INITIATIVES
       On July 1, 1997, Citizens merged with CB Financial Corporation
headquartered in Jackson, Michigan. As part of the merger, Citizens issued 6.3
million shares of its common stock for all of the outstanding shares of CB
Financial Corporation. On November 1, 1999, Citizens merged with F&M
Bancorporation, Inc. ("F&M") headquartered in Kaukauna, Wisconsin. Citizens
issued 21.0 million shares of its common stock, based on a fixed exchange ratio
of 1.303, for all of the outstanding shares of F&M. These transactions were
accounted for as poolings of interests. All financial data presented have been
restated to reflect these combinations.
       On October 8, 1999, Citizens completed the acquisition of seventeen
former Bank One offices located in the northern section of Michigan's Lower
Peninsula (the "Branch Purchase"). The transaction was accounted for as a
purchase; accordingly, the assets acquired and liabilities assumed were recorded
at estimated fair value. The Branch Purchase added approximately $88 million in
loans and $442 million in deposits. Citizens paid a premium of $36.1 million or
10.13% of certain core deposits. The acquired branches' results of operations
have been included in Citizens' consolidated totals from the date of acquisition
only.
       In the third quarter of 1997, Citizens recorded a special charge of $23.7
million ($17.3 million after-tax) related to the July 1, 1997 merger with CB
Financial Corporation and the reorganization of Citizens' information technology
operations. The special charge consisted of $16.1 million of merger-related
expenses and $7.6 million related to the information technology reorganization.
       Merger-related charges, restructuring and other costs recorded in the
fourth quarter of 1999 totaled $50.6 million ($35.2 million after tax) of which
$40.2 million was recorded as a separate component of noninterest expense (the
"Special Charge"), $6.8 million as additional provision for loan losses and $3.6
million as securities losses. Approximately $13 million to $15 million of
additional merger-related and other costs are expected to be incurred during
2000 for system integration and conversions, branches closures and other items.

       The Special Charge in 1999 consists of $36.3 million ($25.9 million
after-tax) in merger-related integration costs and $3.9 million ($2.5 million
after-tax) of restructuring and other costs related to separate corporate
initiatives. Merger integration costs include $7.1 million of personnel-related
expenses, $5.6 million of transaction costs, $13.6 million of contract
terminations and other conversion costs (primarily recognition of obligations
under existing contractual agreements related to system conversions), $1.5
million of asset-related write-downs, a $2.1 million write-down of impaired
goodwill at an F&M bank, a $2.5 million contribution to Citizens' Charitable
Trust for the acquired entities and $3.9 million of other transaction related
costs. The corporate initiatives included realignment of Citizens' branch
network, including closure of 18 branches in Michigan and Illinois and transfer
of Citizens' internal audit and corporate loan review functions to a third
party. See Note 3 to the Consolidated Financial Statements for additional
information regarding the 1999 Special Charge.
       The $6.8 million in additional loan loss provision was provided to
conform F&M's allowance to that which results from applying Citizens' allowance
methodology and credit risk standards to F&M's loan portfolio. The $3.6 million
in securities losses resulted from the sale of $122.8 million of securities, in
the fourth quarter of 1999, to reposition the securities portfolios of the
combined entities to normalize Citizens' total investment exposure based on the
current rate environment and to reduce overall interest rate risk.
       "Net operating income" and "operating" results, as used below, refers to
Citizens' financial performance before the impact of special charges,
restructuring and other one-time expenses incurred in connection with the
acquisitions and other corporate initiatives as described above. The following
table reconciles net operating income to net income as reported in the
Consolidated Financial Statements.
<TABLE>
<CAPTION>
- - --------------------------------------------------------------

(in thousands)                   1999        1998       1997
- - --------------------------------------------------------------
<S>                         <C>          <C>        <C>
NET OPERATING INCOME           $ 97,154   $ 90,282   $ 72,154
                               --------   --------   --------
Special charge                   40,198        ---     23,734
Additional loan loss
 provision                        6,800        ---        ---
Securities loss to
 reposition portfolio             3,596        ---        ---
                               --------   --------   --------
Net pre-tax adjustments          50,594        ---     23,734
Tax benefit                     (15,434)       ---     (6,471)
                               --------   --------   --------
NET INCOME AS REPORTED         $ 61,994   $ 90,282   $ 54,891
                               ========   ========   ========
- - --------------------------------------------------------------
</TABLE>

                                     Page 2

<PAGE>   5


EARNINGS SUMMARY
       Citizens Banking Corporation's ("Citizens") net operating income totaled
$97.2 million, or $2.00 per diluted share, compared with $90.3 million or $1.84
per diluted share in 1998. Reported net income for 1999, was $62.0 million, or
$1.28 per diluted share. Operating returns on average assets and equity were
1.32% and 14.45%, respectively, in 1999, as compared with 1.33% and 13.78% in
1998.
       The improvement in operating income reflects increased noninterest income
and higher net interest income from growth in earning assets. Average
shareholders' equity was $672.2 million or 9.16% of total average assets for
1999, compared with $655.0 million or 9.64% for 1998. Citizens' risk-based
capital levels exceeded all regulatory requirements. An analysis of changes in
major income statement components in 1999 and 1998 is presented below.

<TABLE>
<CAPTION>
- - ----------------------------------------------------------------------------------------------------------------------------
                                                               Year Ended December 31,                 Changes in 1999
                                                            ----------------------------------------------------------------
(in thousands)                                                     1999           1998                 Amount     Percent
- - ----------------------------------------------------------------------------------------------------------------------------
<S>                                                         <C>                <C>                   <C>           <C>

Interest income                                                 $ 542,407       $522,317             $ 20,090        3.8 %
Interest expense                                                  231,917        229,273                2,644        1.2
 Net interest income                                              310,490        293,044               17,446        6.0
Provision for loan losses                                          24,675         16,528                8,147       49.3
Noninterest income                                                 81,144         71,268                9,876       13.9
Noninterest expense before special charge                         236,778        218,219               18,559        8.5
Special charge
 Before tax                                                        40,198            ---               40,198        ---
 After-tax                                                         28,403            ---               28,403        ---
Income taxes                                                       27,989         39,283              (11,294)     (28.8)
Net income                                                         61,994         90,282              (28,288)     (31.3)
Net operating income                                               97,154         90,282                6,872        7.6

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

       Net interest income increased 6.0% in 1999 over 1998. Higher levels of
earning assets, particularly commercial and commercial real estate loans
resulted in higher net interest income. The increase in noninterest income,
excluding net non-recurring items of $3.4 million ($2.2 million after-tax) in
1999, reflects higher trust, brokerage and deposit account revenues.
Nonrecurring items in 1999 consist of a gain of $1.3 million from the sale of
branch deposits in Homer, Michigan, a gain of $5.7 million from the sale of an
equity investment in Magic Line, Inc. due to its June 30, 1999 merger with NYCE
Corporation and a $3.6 million loss to reposition the securities portfolio
following the merger with F&M. Noninterest expense in 1999 included a pre-tax
charge of $6.1 million ($3.9 million after-tax) resulting from a fraudulent
check-kiting scheme perpetrated by a customer against Citizens in the third
quarter of 1999 and reflects increases primarily in data processing fees,
intangible asset amortization, bankcard fees, consulting and other professional
services. Additional data on Citizens' performance during the past five years
appear in Table 1.
       The following table presents operating "cash earnings" for Citizens' most
recent two years. "Cash earnings" add back the amortization of intangible assets
arising from acquisitions that were accounted for as purchases and assumes that
all intangibles were charged off against retained earnings at the original date
of acquisition. All financial information presented reflects favorable earnings
improvement when adjusted for the intangibles.

<TABLE>
<CAPTION>
- - ---------------------------------------------------------------
CASH EARNINGS SUMMARY
(in thousands except per share
amounts)                           1999      1998     % Change
- - ---------------------------------------------------------------
<S>                          <C>            <C>          <C>
Operating cash income           $102,771     $ 95,403     7.7%
Diluted earnings per share          2.11         1.94     8.8
Book value per share               11.35        12.71   (10.7)
Return on average assets            1.41%        1.41%     ---
Return on average equity           17.09        16.05     6.5

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

                                     Page 3


<PAGE>   6


LINES OF BUSINESS REPORTING
       Citizens operates along four major business lines: commercial banking,
retail banking, financial services and F&M, the pooled subsidiary. A description
of each business, selected financial performance and the methodologies used to
measure financial performance are presented in Note 17 to the Consolidated
Financial Statements. Prior year amounts have been restated to reflect the
current business unit structure and cost allocation methodology. The following
table summarizes net operating income by line of business for each of the last
three years:

<TABLE>
<CAPTION>
- - -----------------------------------------------------------
                                Net Operating Income
                          ---------------------------------
- - -----------------------------------------------------------
(in thousands)               1999       1998       1997
- - -----------------------------------------------------------
<S>                     <C>           <C>        <C>
Commercial Banking          $ 26,292   $ 23,016   $ 21,019
Retail Banking                22,205     26,536     23,592
Financial Services             4,794      3,161      1,366
F&M                           37,950     33,497     23,383
Other                          5,913      4,072      2,794
                            --------   --------   --------
Total                       $ 97,154   $ 90,282   $ 72,154
                            ========   ========   ========
- - -----------------------------------------------------------
</TABLE>

       The increase in commercial banking operating income in 1999 is due to
growth in overall commercial account relationships, including increased demand
deposits, strong loan growth and expanded cash management services. Retail
banking operating income decreased in 1999 as a result of lower yields on the
mortgage and consumer loan portfolios, higher net charge-offs on direct and
indirect consumer loans, decreased profit on sale of mortgage loans and related
servicing release premiums and higher operating costs. Financial services
operating income improved in 1999 due to growth in trust, brokerage and
investment advisory services, introduction of new products and services,
successful retail sales efforts, strong equity markets and enhanced pricing
strategy. Growth in operating income from F&M reflects strong loan and deposit
growth and increased noninterest income in its core markets.


NET INTEREST INCOME
     The primary source of Citizens' traditional banking revenue is net interest
income. Net interest income is the difference between interest income on earning
assets, such as loans and securities, and interest expense on liabilities,
including interest-bearing deposits and borrowings, used to fund those assets.
Net interest income is affected by market interest rates on both earning assets
and interest-bearing liabilities, the level of earning assets being funded by
interest-bearing liabilities, noninterest-bearing liabilities and equity and the
volume and composition of earning assets and funding sources. Other factors,
such as Federal Reserve Board monetary policy and changes in tax laws, may also
have an impact on changes in net interest income from one period to another.

       Net interest income, on a fully-tax equivalent basis, increased $18.2
million, or 6.0%, to $322.7 million in 1999, from $304.5 million in 1998. A
higher level of earning assets, partially offset by an increase in short-term
borrowing balances and a lower net interest margin, led to the increase in 1999.
A detailed analysis of net interest income, with average balances and related
interest rates for the past three years, appears in Table 3. An analysis of how
changes in volume and rates have affected net interest income for the years
ended December 31, 1999 and 1998 is presented in Table 2. Interest income
increased in 1999 as higher earning asset volumes outpaced the decline in
earning asset yields. Average earning assets grew to $6.876 billion in 1999 from
$6.367 billion in 1998, an increase of 8.0%. Loan production, principally
commercial and commercial real estate loans, and purchases of Federal agency
securities contributed to the growth in earning assets. Average loans, the
highest yielding category of earning assets, decreased to 80.4% of average
earning assets, compared with 81.0% in 1998. Investment securities, including
money market investments, comprised 19.6% of earning assets in 1999, up from
19.0% in 1998. The average yield on earning assets declined to 8.06% in 1999
from 8.39% in 1998 reflecting a lower interest rate environment in the first
half of 1999 and growth in relatively lower-yielding investment securities in
the second half of 1999.
       Increased interest expense was volume related as higher interest-bearing
liability balances were only partially offset by lower rates paid on funding
sources. Average deposits grew to $5.907 billion in 1999, from $5.617 billion in
1998, an increase of 5.2%. Average short- and long-term borrowings comprised
12.1% of interest bearing liabilities in 1999, up from 8.3% in 1998. Although
Citizens has been successful in attracting new deposits, loan growth outpaced
deposit growth and Citizens used short-term FHLB advances and other purchased
funds to support the higher level of earning assets. The average rate paid on
interest-bearing deposits was 3.33%, down from 3.68% in 1998. The average rate
on long-term debt was 5.40% in 1999, down from 5.62% in 1998. Lower rates on
interest-bearing deposits and long-term debt decreased the cost of
interest-bearing funding sources to 4.07% in 1999 from 4.39% in 1998.
       Net interest margin, the percentage of net interest income to average
earning assets, was 4.69% in 1999 and 4.79% in 1998. The decrease in net
interest margin reflects a change in funding mix and the cost of funding
Citizens' share repurchase program. The change in funding mix reflects, in part,
a planned strategy to leverage deposits from the Branch Purchase. Prior to the
acquisition of these deposits, Citizens' utilized short-term Federal Home Loan
Bank ("FHLB") advances to fund purchases of Federal agency securities and
support loan growth. Approximately $300 million of these advances matured in
October 1999 and were replaced with the new, lower rate core deposits as the
primary funding source for earning assets. Additional short-term FHLB advances
borrowed in late 1999 were used to support continued loan growth in Citizens'
core markets.

                                     Page 4
<PAGE>   7

       During 1999, Citizens' repurchased 1.8 million shares for an aggregate
cost of $53.8 million. The repurchase program enhanced shareholder returns but
resulted in incremental funding costs and reduced the net interest margin by an
estimated three basis points. Recent increases in short-term interest rates by
the Federal Reserve have also pressured Citizens' net interest margin. A planned
shift in 2000 toward higher-yielding loans and away from lower-yielding
investment securities is expected to help mitigate this trend.

<TABLE>
<CAPTION>
- - ------------------------------------------------------------------------------------------------------------------------------
TABLE 2. ANALYSIS OF CHANGES IN INTEREST INCOME AND INTEREST EXPENSE

                                                   1999 COMPARED TO 1998                     1998 Compared to 1997
                                              -----------------------------               ------------------------------------
                                                              INCREASE (DECREASE)                       Increase (Decrease)
Year Ended December 31                            NET         DUE TO CHANGE IN                   Net    Due to Change in
                                                             ---------------------                     ------------------------
(in millions)                                   CHANGE(1)      RATE     VOLUME(2)            Change(1)   Rate     Volume(2)
- - ------------------------------------------------------------------------------------------------------------------------------
<S>                                         <C>              <C>        <C>             <C>            <C>        <C>
INTEREST INCOME:
     Money market investments:
      Federal funds sold                        $ (2.5)       $  ---     $ (2.5)         $  2.4         $ (0.2)    $  2.6
      Other                                       (0.2)         (0.2)       ---             ---            ---        ---
     Investment securities:
      Taxable                                      9.7          (1.5)      11.2            (2.6)          (0.1)      (2.5)
      Tax-exempt                                   0.2          (0.8)       1.0            (0.3)          (0.5)       0.2
     Loans                                        12.9         (15.9)      28.8            24.0           (5.0)      29.0
                                                ------        ------     ------          ------         ------     ------
      Total                                       20.1         (18.4)      38.5            23.5           (5.8)      29.3
                                                ------        ------     ------          ------         ------     ------
INTEREST EXPENSE:
     Deposits:
      Demand                                      (0.1)         (0.5)       0.4             0.1            0.1        ---
      Savings                                     (0.9)         (5.9)       5.0             1.3           (3.5)       4.8
      Time                                        (8.7)        (11.2)       2.5             3.8           (1.2)       5.0
     Short-term borrowings                        13.9           0.2       13.7            (3.4)          (1.1)      (2.3)
     Long-term debt                               (1.6)         (0.1)      (1.5)            3.6           (0.9)       4.5
                                                ------        ------     ------          ------         ------     ------
      Total                                        2.6         (17.5)      20.1             5.4           (6.6)      12.0
                                                ------        ------     ------          ------         ------     ------
NET INTEREST INCOME                             $ 17.5        $ (0.9)    $ 18.4          $ 18.1         $  0.8     $ 17.3
                                                ======        ======     ======          ======         ======     ======
- - ------------------------------------------------------------------------------------------------------------------------------
</TABLE>

  (1)Changes are based on actual interest income and do not reflect taxable
     equivalent adjustments.

  (2)Rate/Volume variances are allocated to changes due to volume.

                                     Page 5

<PAGE>   8

<TABLE>
<CAPTION>
- - ---------------------------------------------------------------------------------------------------------------------------------
TABLE 3. AVERAGE BALANCES/NET INTEREST INCOME/AVERAGE RATES

                                                1999                            1998                           1997
                                   -------------------------------   -----------------------------   ----------------------------
Year Ended December 31                 Average               Average    Average              Average    Average             Average
(in millions)                          Balance   Interest(1) Rate(2)    Balance  Interest(1) (Rate(2)   Balance Interest(1) Rate(2)
- - ------------------------------------------------------------------------------------------------------------------------------------
<S>                                 <C>          <C>         <C>      <C>         <C>        <C>      <C>         <C>       <C>
EARNING ASSETS
Money market investments:
    Federal funds sold              $    45.6    $  2.4       5.22 %  $    94.1   $  4.9      5.21 %  $    43.1   $   2.5    5.76 %
    Other                                15.8       0.7       4.58         15.5      0.9      5.70         15.5       0.9    5.49
Investment securities (3):
    Taxable                             961.5      59.1       6.14        779.5     49.4      6.34        823.4      52.0    6.32
    Nontaxable                          328.3      17.2       8.06        312.3     16.9      8.35        311.1      17.2    8.53
Loans (4):
    Commercial                        2,525.1     212.1       8.51      2,155.3    187.9      8.83      1,918.0     171.6    9.04
    Real estate mortgage              1,601.9     123.4       7.71      1,589.7    129.9      8.17      1,489.0     121.6    8.16
    Consumer                          1,401.9     127.5       9.10      1,414.6    132.4      9.36      1,432.5     133.0    9.29
                                    ---------   -------               ---------   ------              ---------   -------
    Total earning assets (3)          6,880.1     542.4       8.06      6,361.0    522.3      8.39      6,032.6     498.8    8.45

NONEARNING ASSETS
Cash and due from banks                 231.3                             214.4                           195.0
Premises and equipment                  135.1                             120.5                           114.4
Other assets                            167.1                             166.9                           161.4
Allowance for loan losses               (71.4)                            (70.0)                          (63.7)
                                    ---------                         ---------                       ---------
    Total assets                    $ 7,342.2                         $ 6,792.8                       $ 6,439.7
                                    =========                         =========                       =========

INTEREST-BEARING LIABILITIES
Deposits:
    Interest-bearing demand         $   578.5       9.0      1.55     $   547.4   $  9.1     1.67       $ 535.1   $   9.0    1.69
    Savings                           1,751.6      49.5      2.83       1,635.1     50.4     3.08       1,551.0      49.1    3.17
    Time                              2,672.0     138.4      5.18       2,604.6    147.1     5.65       2,515.9     143.3    5.69
Short-term borrowings                   478.9      23.7      4.95         202.6      9.8     4.84         259.1      13.2    5.10
Long-term debt                          210.3      11.3      5.40         229.0     12.9     5.62         144.3       9.3    6.38
                                    ---------   -------               ---------   ------              ---------   -------
    Total interest-bearing
    liabilities                       5,691.3     231.9      4.07       5,218.7    229.3     4.39       5,005.4     223.9    4.47

NONINTEREST-BEARING LIABILITIES
AND SHAREHOLDERS' EQUITY
Demand deposits                         904.6                             829.8                           757.4
Other liabilities                        74.1                              89.3                            79.7
Shareholders' equity                    672.2                             655.0                           597.2
    Total liabilities and           ---------                         ---------                       ---------
    shareholders' equity            $ 7,342.2                         $ 6,792.8                       $ 6,439.7
                                    =========                         =========                       =========
NET INTEREST INCOME                              $310.5                           $293.0                          $274.9
                                                 ======                           ======                          ======
NET INTEREST INCOME AS A
PERCENT OF EARNING ASSETS                                   4.69 %                          4.79 %                         4.74 %

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

(1)  Interest income is shown on an unadjusted basis and therefore does not
     include taxable equivalent adjustments.

(2)  Average rates include taxable equivalent adjustments to interest income of
     $12,204,000, $11,508,000 and $11,154,000 for the years ended December 31,
     1999, 1998, and 1997, respectively, based on a 35% tax rate.

(3)  For presentation in this table, average balances and the corresponding
     average rates for investment securities are based upon historical cost,
     adjusted for amortization of premiums and accretion of discounts.

(4)   Nonaccrual loans are included in average balances.

                                     Page 6
<PAGE>   9


PROVISION AND ALLOWANCE FOR LOAN LOSSES
       The provision for loan losses represents a charge against income and a
corresponding increase in the allowance for loan losses. The provision for loan
losses was $24.7 million in 1999. Without the additional provision attributable
to applying Citizens' allowance methodology and credit risk standards to F&M's
portfolio, the provision was $17.9 million in 1999, up 8.5% from $16.5 million a
year ago. Net charge-offs were 0.37% of average loans in 1999, up from 0.30% in
1998 reflecting increases in the commercial and consumer loan portfolios in
1999. The increases in these portfolios were largely due to charge-offs of $4.9
million recorded in F&M's loan portfolio after the merger. Additionally, during
the year, losses in the direct and indirect consumer loan portfolio were higher
than in the recent past. A summary of Citizens' loan loss experience from 1995
through 1999 appears in Table 4.
       Citizens' maintains what management believes is an adequate allowance for
possible loan losses to meet presently known credit risks in the loan portfolio.
The allowance for loan losses at December 31, 1999 was $76.4 million, or 1.29%
of loans, compared with $69.7 million, or 1.32% of loans at the end of 1998. The
allowance equaled 245.8% of nonperforming loans at year-end 1999, compared with
184.8% at year-end 1998.
       The allowance for loan losses is based upon an assessment of the losses
inherent in the loan portfolio. Management provides for possible loan losses by
dividing the allowance into two components: allocated and unallocated. Consumer
loans are charged-off based on delinquency status within industry guidelines and
commercial loans are evaluated individually.
       The allocated component of the allowance is based on expected losses from
analysis of specific loans and historical loss experience for each category of
loans. The analysis of individual loans is based on a regular review of all
loans and commitments over a fixed dollar amount. The historical loan losses are
determined by loss experience over the past three years and a reserve formula
allocation method, which uses factors such as loan quality ratings, independent
assessment and charge-off history. This analysis is performed throughout the
year and is updated based on actual experience and loan reviews.
       The unallocated portion of the allowance is determined based on the
Citizens' assessment of general economic conditions, the economic conditions in
the markets in which Citizens operates, the level and composition of
nonperforming loans and other factors. This analysis involves a higher degree of
uncertainty and considers factors, which may not yet be reflected in historical
loss factors used to determine the allocated portion of the allowance. An
allocation of the ending allowance for loan losses by major loan type is
presented in Table 5.

<TABLE>
<CAPTION>
- - -------------------------------------------------------------------------------------------------------------------------------
TABLE 4. SUMMARY OF LOAN LOSS EXPERIENCE

Year Ended December 31 (in thousands)                         1999          1998          1997           1996           1995
- - -------------------------------------------------------------------------------------------------------------------------------
<S>                                                  <C>                 <C>           <C>            <C>            <C>
Allowance for loan losses - January 1                    $    69,740    $   67,010   $    59,029    $    53,431     $   41,719
Allowance of acquired banks and branches                       2,400         1,745         1,329            587          7,235
Provision for loan losses                                     24,675        16,528        20,511         15,725          9,918
CHARGE-OFFS:
    Commercial                                                 8,675         4,557         4,555          6,222          4,874
    Real estate                                                  436           359           861            114            167
    Consumer                                                  17,751        14,879        13,064          9,045          5,426
                                                         -----------    ----------   -----------    -----------     ----------
      Total charge-offs                                       26,862        19,795        18,480         15,381         10,467
                                                         -----------    ----------   -----------    -----------     ----------
RECOVERIES:
    Commercial                                                 2,483         1,387         1,581          1,485          1,937
    Real estate                                                  149            28            12             33             75
    Consumer                                                   3,812         2,837         3,028          3,149          3,014
                                                         -----------    ----------   -----------    -----------    -----------
      Total recoveries                                         6,444         4,252         4,621          4,667          5,026
                                                         -----------    ----------   -----------    -----------    -----------
Net charge-offs                                               20,418        15,543        13,859         10,714          5,441
                                                         -----------    ----------   -----------    -----------    -----------
Allowance for loan losses - December 31                  $    76,397    $   69,740   $    67,010    $    59,029    $    53,431
                                                         ===========    ==========   ===========    ===========    ===========
Loans outstanding at year-end                            $ 5,917,483    $5,264,706   $ 5,074,230    $ 4,517,814    $ 3,961,255
Average loans outstanding                                  5,528,963     5,159,584     4,843,507      4,258,404      3,774,001
Ratio of allowance for loan losses
     to loans outstanding at year-end                           1.29%         1.32%         1.32%          1.31%          1.35%
Ratio of net loans charged off as a
     percentage of average loans outstanding                    0.37          0.30          0.29           0.25           0.14

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

                                     Page 7
<PAGE>   10
       Citizens' loan portfolio has no significant concentrations in any one
industry or any exposure in foreign loans. Citizens has generally not extended
credit to finance highly leveraged transactions nor does it intend to do so in
the future. Employment levels and other economic conditions in Citizens' local
markets may have a significant impact on the level of credit losses. Management
continues to identify and devote attention to credits that may not be performing
as well as expected. Nonperforming loans are further discussed in the section
titled "Nonperforming Assets".

<TABLE>
<CAPTION>
- - -------------------------------------------------------------------------------------------------------------------------------
TABLE 5. ALLOCATION OF THE ALLOWANCE FOR LOAN LOSSES(1)

                                  1999                1998                1997                1996                1995
                              ------------------  -----------------   -----------------   ------------------  ------------------
                                      LOAN                LOAN                Loan                Loan                Loan
December 31 (in millions)     AMOUNT  PERCENT(2)  Amount  Percent(2)  Amount  Percent(2)  Amount  Percent(2)  Amount  Percent(2)
- - --------------------------------------------------------------------------------------------------------------------------------
<S>                       <C>         <C>         <C>      <C>        <C>      <C>         <C>     <C>        <C>      <C>
Commercial                    $ 22.0    48.6 %     $19.2    45.8 %     $16.7    40.7 %     $17.2    40.3 %     $17.2    41.3 %
Real estate construction         ---     3.2         0.3     2.8         0.2     2.2         0.3     2.5         0.2     2.0
Real estate mortgage             6.1    24.3         8.2    26.9         7.9    28.4         5.6    28.6         4.6    26.5
Consumer                        23.5    23.9        21.4    24.5        18.0    28.7        17.4    28.6        15.7    30.2
                              ------   -----       -----   -----       -----   -----       -----   -----       -----   -----
    Total allocated             51.6   100.0 %      49.1   100.0 %      42.8   100.0 %      40.5   100.0 %      37.7   100.0 %
                                       =====               =====               =====               =====               =====
Unallocated                     24.8                20.6                24.2                18.5                15.7
                              ------               -----               -----               -----               -----
    Total                     $ 76.4               $69.7               $67.0               $59.0               $53.4
                              ======               =====               =====               =====               =====
- - --------------------------------------------------------------------------------------------------------------------------------
</TABLE>


 (1)The allocation of the allowance for loan losses in the above table is based
    upon ranges of estimates and are not intended to imply either limitations on
    the usage of the allowance or precision of the specific amounts.  Citizens
    and its subsidiaries do not view the allowance for loan losses as being
    divisible among the various categories of loans.  The entire allowance is
    available to absorb any future losses without regard to the category or
    categories in which the charged-off loans are classified.
 (2)Percentage reflects the ratio of outstanding loans by category to total
    outstanding loans at the end of the respective year.


NONINTEREST INCOME
       Noninterest income, before nonrecurring income and securities gains and
losses, increased to $77.2 million in 1999 from $70.2 million in 1998, an
improvement of 10.0%. On this same basis, noninterest income accounted for 19.9%
of total operating revenue in 1999, compared with 19.3% in 1998. Increases in
most categories below reflect Citizens' continued emphasis on a relationship
sales strategy, "Clients First!sm", and client access to new financial products,
services and distribution channels due, in part, to our investments in
technology that support and enhance client service.
       Trust fees increased 10.6% or $2.1 million in 1999 over 1998. Successful
sales efforts resulted in new business volume, which along with equity market
appreciation, new mutual fund administrative fees on commercial deposit sweep
accounts and full year effect of a new uniform fee structure led to the revenue
growth. At December 31, 1999, Citizens had total assets under administration of
$3.843 billion, a $114 million increase over year-end 1998. Brokerage and
investment fees were up $1.6 million or 61.6%, propelled by successful retail
sales efforts, strength in the equity markets and solid growth in new mutual
fund and annuity products. Improvements in service charges on deposit accounts,
bankcard fees, ATM network user fees and cash management service fees reflect
higher transaction volume and enhanced marketing strategies. Title insurance
fees and mortgage and other loan income decreased in 1999 as higher interest
rates in the latter half of 1999 reduced closing volume and refinance activity,
which in turn resulted in fewer gains on sale of residential mortgage loans and
the related servicing. Partially offsetting this decrease were increases in
letter of credit commissions and commercial line of credit fees.
       Citizens "Clients First!sm" relationship sales strategy, initiated in
1998, was a significant factor in the creation of new business volumes mentioned
above. During the year, Citizens' employees continued to participate in
comprehensive training programs designed to improve product knowledge, sales and
sales-management skills. Citizens' has also continued to explore the way we use
technology to reach new clients and expand their financial choices. In 1999,
Citizens expanded its network of ATMs and introduced its Internet banking
solution, Clients First On-LineSM, which allows clients to access information,
pay bills, open accounts, and conduct other banking business when and where it's
most convenient. With these initiatives, as well as the yet untapped
opportunities provided by our merger with F&M and the Branch Purchase in 1999,
Citizens believes it is well positioned to achieve additional growth in
noninterest income in the future.

                                     Page 8
<PAGE>   11
<TABLE>
<CAPTION>
- - ------------------------------------------------------------------------------
NONINTEREST INCOME
                                   Year Ended
                                  December 31,           Changes in 1999
                             -------------------------------------------------
(in thousands)                 1999        1998         Amount      Percent
- - ------------------------------------------------------------------------------
<S>                          <C>           <C>           <C>          <C>
Trust fees                    $ 21,701      $ 19,627      $ 2,074       10.6%
Service charges
  on deposit accounts           21,378        18,803        2,575       13.7
Bankcard fees                    9,163         7,899        1,264       16.0
Brokerage and
  investment fees                4,325         2,677        1,648       61.6
Mortgage and
  other loan income              5,230         6,668       (1,438)     (21.6)
ATM network user fees            3,310         3,077          233        7.6
Cash management services         2,556         2,405          151        6.3
Title insurance fees               987         1,137         (150)     (13.2)
Other                            8,505         7,870          635        8.1
                              --------      --------      -------
TOTAL FEES AND
  OTHER INCOME                  77,155        70,163        6,992       10.0
Securities gains                   544           475           69       14.5
                              --------      --------      -------
TOTAL BEFORE
  NONRECURRING ITEMS            77,699        70,638        7,061       10.0
Student loan portfolio gain         --           630         (630)    (100.0)
Securities loss on repo-
  sitioning the portfolio       (3,596)           --       (3,596)        (1)
Equity investment gain           5,693            --        5,693         (1)
Premium on sale of deposits      1,348            --        1,348         (1)
                              --------     --------      --------
TOTAL NONINTEREST INCOME      $ 81,144     $ 71,268      $  9,876       13.9
                              ========     ========      ========
- - ------------------------------------------------------------------------------
</TABLE>

(1) Not meaningful.

Nonrecurring items in 1999 consisted of a premium of $1.3 million received from
the sale of deposits of a branch office in March 1999, a gain of $5.7 million
from the sale of Citizens' equity investment in Magic Line, Inc. to NYCE
Corporation due to their merger in June 1999 and a one-time securities loss
described below. The year 1998 included a nonrecurring gain of $0.6 million from
the sale of a student loan portfolio in third quarter of 1998.
       Citizens realized a net loss of $3.1 million on sales of investment
securities during 1999 as compared to a net gain of $475,000 during 1998. As
presented in Note 4 to the Consolidated Financial Statements, gross realized
gains on sales of investment securities amounted to $561,000 in 1999 while gross
realized losses amounted to $3.613 million. The comparable amounts in 1998 were
$504,000 and $29,000. During the fourth quarter of 1999, Citizens repositioned
the securities portfolios of the combined entities to normalize its total
investment exposure based on the current rate environment and to reduce overall
interest rate risk. As a result, Citizens realized a securities loss of $3.6
million during the period.



NONINTEREST EXPENSE
       Excluding nonrecurring expenses, noninterest expense increased $12.5
million, or 5.7%, to $230.7 million from $218.2 million in 1998. As shown below,
primarily higher data processing fees, intangible asset amortization, bankcard
fees, and consulting and other professional services fueled this increase.

<TABLE>
<CAPTION>
- - --------------------------------------------------------------------------
NONINTEREST EXPENSE
                            Year Ended
                            December 31,                 Changes in 1999
                       ---------------------------------------------------
(in thousands)                 1999         1998        Amount   Percent
- - --------------------------------------------------------------------------
<S>                      <C>             <C>         <C>        <C>
Salaries and
  employee benefits       $ 122,572       $ 115,088   $  7,484     6.5%
Equipment                    16,645          17,088       (443)   (2.6)
Occupancy                    15,414          15,074        340     2.3
Data processing
  services                    9,924           7,943      1,981    24.9
Intangible asset
  amortization                8,363           7,631        732     9.6
Bankcard fees                 7,477           5,894      1,583    26.9
Telephone                     5,601           5,168        433     8.4
Postage and delivery          5,985           5,925         60     1.0
Stationery and supplies       5,674           5,609         65     1.2
Advertising and
  public relations            5,223           5,842       (619)  (10.6)
Consulting and other
  professional fees           4,082           2,813      1,269    45.1
Legal, audit and
  examination fees            3,248           3,530       (282)   (8.0)
Other                        20,475          20,614       (139)   (0.7)
                          ---------       ---------   --------
SUBTOTAL                    230,683         218,219     12,464     5.7
Fraud loss, net               6,095             ---      6,095      (1)
Special Charge               40,198             ---     40,198      (1)
                          ---------       ---------   --------
TOTAL NONINTEREST
  EXPENSE                 $ 276,976       $ 218,219   $ 58,757    26.9
                          =========       =========   ========
- - --------------------------------------------------------------------------
</TABLE>

(1) Not meaningful.

Salaries and employee benefits were up $7.5 million or 6.5% as a result of
acquisitions, higher healthcare costs, new sales support staff and increased
incentive commissions related to additional sales activity and Citizens
continued rollout of pay for performance sales initiatives. Partially offsetting
these increases were lower staffing levels from the synergies of the information
technology partnership with M&I Data Services and lower pension costs.

                                     Page 9
<PAGE>   12

       Data processing expenses increased 24.9% in 1999 reflecting a full-year
of processing with M&I Data Services following system conversions in May 1998,
higher processing volumes and new services and costs associated with information
technology and Year 2000 initiatives. Synergies achieved through Citizens'
information technology partnership with M&I Data Services led to reductions in
equipment and supplies and mitigated increases in occupancy and staffing costs.
Bankcard fees were up due to higher transaction volume and system processing
costs, and new fees associated with the recent outsourcing of bankcard
operations. The additional intangible asset amortization was attributable to the
Branch Purchase. Consulting services were up due to future revenue enhancing
programs and other strategic actions.
       In the fourth quarter of 1999, Citizens management approved a series of
initiatives designed to achieve future cost efficiencies. They include plans to
combine and integrate operations of the merged entities and institute other
efficiency measures, including consolidation of all F&M Wisconsin bank charters
into one Wisconsin bank charter, conversion of data processing systems to a
common operating platform, elimination and consolidation of various back room
operations and business activities, consolidation of Citizens' branch network
including closure of approximately eighteen Citizens Bank branches in Michigan
and Illinois and fifteen F&M branches in Wisconsin and Iowa and transfer of
Citizens' internal audit and corporate loan review functions to a third party.
Moreover, in December 1999, Citizens contributed $2.5 million to its Charitable
Trust for the newly acquired entities and wrote-down $2.1 million of goodwill at
F&M and $0.3 million of core deposit premium from a previous acquisition. In
connection with these initiatives, Citizens expects a net reduction of
approximately 200 positions or 6.2% of its work force. Consolidation of F&M's
bank charters was completed in January 2000. The movement to a common operating
platform is complete for the Branch Purchase and is expected to continue
throughout 2000 for the F&M merger.
       As a result of the above-mentioned initiatives and actions, Citizens
recorded a $40.2 million ($28.4 million net of taxes, or $0.58 per share)
Special Charge. It is anticipated that the exit activities and the closure of
banking offices will be completed by the end of year 2000. Approximately $13
million to $15 million of additional merger-related and other costs are expected
to be incurred during 2000 for system conversions, branches closures and other
items. See Note 3 to the Consolidated Financial Statements for additional
information regarding the 1999 Special Charge.
       Nonrecurring expense included the 1999 Special Charge and a $6.1 million
($3.9 million, after-tax) loss resulting from a fraudulent check-kiting scheme
perpetrated by a customer against Citizens in the third quarter of 1999. In
response to the third quarter fraud loss, Citizens took immediate action to
review and strengthen its procedures in an effort to prevent future occurrences.


FEDERAL INCOME TAXES
       Income tax expense was $28.0 million in 1999, a decrease of 28.8% over
the 1998 total of $39.3 million. The decrease resulted from lower pre-tax
earnings associated with the Special Charge and other one-time costs and a
higher level of tax-exempt interest income in 1999 as compared with 1998.


FINANCIAL CONDITION
       Proper management of the volume and composition of Citizens' earning
assets and funding sources is essential for ensuring strong and consistent
earnings performance, maintaining adequate liquidity and limiting exposure to
risks caused by changing market conditions. Citizens' investment securities
portfolio is structured to provide a source of liquidity through maturities and
generate an income stream with relatively low levels of principal risk. Loans
comprise the largest component of earning assets and are Citizens' highest
yielding assets. Client deposits are the primary source of funding for earning
assets while short-term debt and other managed sources of funds are utilized as
market conditions and liquidity needs change.
       Average total assets for 1999 were $7.342 billion, an increase of $549
million or 8.1% from 1998. Average earning assets as a percent of average total
assets was 93.6% for 1999, down slightly from 93.7% in 1998. Average loans
comprised 75.3% of average assets during 1999, down from 76.0% in 1998.
Interest-bearing deposits comprised 87.9% of average interest-bearing
liabilities for 1999, decreasing from 91.7% in 1998. The ratio of average
noninterest-bearing deposits to average deposits increased to 15.3% in 1999,
from 14.8% in 1998.

       INVESTMENT SECURITIES AND MONEY MARKET INVESTMENTS
       Average investment securities, including money market investments,
comprised 19.6% of total average earning assets in 1999, up from 19.0% in 1998.
The increase primarily reflects a balance sheet leveraging strategy deployed in
the third quarter of 1999 in anticipation of the pending Branch Purchase.
Citizens leveraged its future core deposit growth by utilizing short-term FHLB
advances to fund purchases of longer-term Federal agency securities. A summary
of investment securities available for sale and held to maturity at December 31,
1999 and 1998 follows:

                                    Page 10
<PAGE>   13

<TABLE>
<CAPTION>
- - ------------------------------------------------------------------------------------------------------------------------------
AVAILABLE FOR SALE AND HELD TO MATURITY SECURITIES
                                                            Balances(1)                              Changes in 1999
                                                 ----------------------------------          ---------------------------------
Year Ended December 31 (in thousands)                1999                1998                   Amount           Percent
- - ------------------------------------------------------------------------------------------------------------------------------
<S>                                            <C>                    <C>                      <C>                  <C>
U.S. Treasury                                      $    34,487         $    56,026              $ (21,539)           (38.4)%
Federal agencies
     Mortgage-backed securities                        643,219             497,474                145,745             29.3
     Other agencies                                    242,729             146,950                 95,779             65.2
State and municipal:
     Taxable                                            12,359              12,693                   (334)            (2.6)
     Tax-exempt                                        356,373             311,883                 44,490             14.3
Other                                                   83,019              98,460                (15,441)           (15.7)
                                                   -----------          ----------              ---------
     Total                                         $ 1,372,186         $ 1,123,486              $ 248,700             22.1
                                                   ===========         ===========              =========
- - ------------------------------------------------------------------------------------------------------------------------------
</TABLE>

  (1) All securities were designated available for sale at December 31, 1999.
      Balances at December 31, 1998 included $160,132 of tax-exempt state and
      municipal securities held to maturity.

       Investment in U.S. Treasury and Federal agency securities totaled $920.4
million, or 67.1% of total investment securities at December 31, 1999, compared
with $700.5, or 62.3% at year-end 1998. The portfolio has continued to shift
toward investments in mortgage-backed and other Federal agency securities.
Citizens' mortgage-backed securities are predominantly underwritten to the
standards of and guaranteed by government sponsored agencies. These securities
generally yield 70-100 basis points more than comparable U.S. Treasury
securities but differ from traditional debt securities in that they have
uncertain maturity dates and are priced based on estimated prepayment rates on
the underlying mortgages. Prepayment rates generally can be expected to increase
during periods of lower interest rates as some of the underlying mortgages are
refinanced at lower rates. Conversely, the average lives of these securities
generally are extended as interest rates increase. Mortgage-backed securities
represented 48.9% and 47.1% of total investment securities at December 31, 1999
and 1998, respectively. Additional state and municipal securities were also
purchased in 1999 due to their higher tax equivalent yields, but they decreased
as a percent of total investment securities. At December 31, 1999, state and
municipal securities represented 26.9% of total investment securities, compared
with 28.9% in the prior year. Purchases of these securities remain dependent on
Citizens' capacity to effectively utilize tax-exempt income and the availability
of such securities at attractive yields with acceptable risk. Other securities,
consisting primarily of Federal Reserve stock, Federal Home Loan Bank stock and
privately issued asset-backed securities, decreased to 6.1% of total investment
securities from 8.8% a year ago.
       Year-end 1999 investment securities balances were also affected by
management's decision to reposition the securities portfolio, following the
merger with F&M in November 1999, in order to normalize total investment
exposure based on the then current rate environment and to reduce overall
interest rate risk. Citizens sold mostly U.S. Treasury and Federal agency
securities and reinvested the proceeds in longer duration other Federal agency
securities and to a lesser degree in Federal agency mortgaged-backed securities
at higher yields. The increase in annual interest income from the newly acquired
securities is expected to recover the $3.6 million loss from the securities sold
in approximately eighteen months. Additionally, in December 1999, in order to
provide for more effective asset/liability management, the entire held to
maturity securities portfolio of F&M was transferred to available for sale. The
held to maturity portfolio had an amortized cost of $208.3 million and fair
value of $204.7 million at the date of transfer. The unrealized loss of $3.6
million is included, net of tax, in accumulated other comprehensive income.
       Money market investments, primarily federal funds sold, commercial paper
and mutual funds, averaged $61.4 million for 1999, down from $109.6 million in
1998. The amount of funds invested in these assets is based on the present and
anticipated interest rate environment, liquidity needs and other economic
factors.
       Citizens' present policies with respect to the classification of
investments in debt and equity securities are discussed in Note 1 to the
Consolidated Financial Statements. Maturities and average yields of available
for sale securities at year-end 1999 is presented in Table 6. As of December 31,
1999, the estimated aggregate fair value of Citizens' investment securities
portfolio was $26.8 million below amortized cost consisting of gross unrealized
gains of $4.8 million and gross unrealized losses of $31.6 million. A summary of
estimated fair values and unrealized gains and losses for the major components
of the investment securities portfolio is provided in Note 4 to the Consolidated
Financial Statements.

                                    Page 11
<PAGE>   14

<TABLE>
<CAPTION>
- - -----------------------------------------------------------------------------------------------------------------------------------
TABLE 6. MATURITIES AND AVERAGE YIELDS OF AVAILABLE FOR SALE SECURITIES AT DECEMBER 31, 1999
                            U.S. Treasury and
                            Federal Agency(1)     State and Municipal(1),(2)         Other(1)                     Total
                     ---------------------------  -------------------------- ------------------------  ----------------------------
                       Amortized  Fair             Amortized  Fair           Amortized Fair             Amortized    Fair
(in millions)           Cost      Value   Yield     Cost     Value   Yield     Cost    Value  Yield       Cost      Value    Yield
<S>                <C>          <C>       <C>     <C>      <C>       <C>    <C>      <C>      <C>     <C>        <C>         <C>
DUE WITHIN ONE YEAR   $  88.1    $ 87.2    6.34%   $ 18.6   $ 18.9    8.41%  $ 10.4  $ 10.4    7.20%   $  117.1   $  116.5    6.75%
ONE TO FIVE YEARS       467.9     457.6    6.22      69.9     70.4    8.15     18.2    18.0    6.60       556.0      546.0    6.48
FIVE TO TEN YEARS       324.4     316.7    6.74     131.0    130.4    8.10      3.2     3.2    6.33       458.6      450.3    7.12
AFTER TEN YEARS          60.4      58.9    7.09     156.4    149.1    7.77     50.5    51.4    7.30       267.3      259.4    7.53
                      -------    ------            ------   ------           ------  ------            --------   --------
   TOTAL              $ 940.8    $920.4    6.47    $375.9   $368.8    7.96   $ 82.3  $ 83.0    7.10    $1,399.0   $1,372.2    6.90
                      =======    ======            ======   ======           ======  ======            ========   ========

AVERAGE MATURITY (3)               4.75 yrs.                  8.75 yrs.                1.24 yrs.                      5.62 yrs.
- - -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

(1) Maturities for Federal agency, collateralized mortgage obligations and
    asset-backed securities are based upon projections of independent cash flow
    models.  Maturities for state and municipal securities incorporate early
    call features, if applicable.
(2) Yields for state and municipal securities are calculated on a tax equivalent
    basis using a 35% tax rate.
(3) Average maturity information excludes Federal Reserve and Federal Home Loan
    Bank stocks with no stated maturity.

       LOANS

       Citizens extends credit primarily within the local markets of its banking
subsidiaries located in Michigan, Wisconsin, Iowa, Illinois and Minnesota.
Citizens' loan portfolio contains no loans to foreign governments, enterprises
or foreign operations of domestic companies and is widely diversified by
borrowers with no concentration within a single industry that exceeds 10% of
total loans. Loan balances at December 31 and an analysis of the maturity and
interest rate sensitivity of commercial and real estate construction loans is
presented below.

<TABLE>
<CAPTION>
- - -----------------------------------------------------------------------------------------------------------------------------
TABLE 7. LOAN PORTFOLIO

(in millions)                                              1999           1998          1997          1996           1995
- - -----------------------------------------------------------------------------------------------------------------------------
<S>                                                 <C>               <C>           <C>           <C>            <C>
LOANS OUTSTANDING AT DECEMBER 31
  Commercial                                            $ 1,822.4      $1,619.9      $ 1,370.3     $ 1,176.8      $1,025.0
  Commercial real estate                                  1,053.0         790.5          694.0         642.8         609.3
  Real estate construction                                  185.4         149.5          113.5         112.9          81.2
  Real estate mortgage                                    1,440.1       1,417.9        1,439.4       1,291.8       1,049.0
  Consumer                                                1,416.6       1,286.9        1,457.0       1,293.5       1,196.7
                                                        ---------      --------      ---------     ---------      --------
    Total                                               $ 5,917.5      $5,264.7      $ 5,074.2     $ 4,517.8      $3,961.2
                                                        =========      ========      =========     =========      ========
</TABLE>

LOAN MATURITIES AND INTEREST RATE SENSITIVITY AT DECEMBER 31, 1999

<TABLE>
<CAPTION>
                                                                         Within        One to         After
                                                                        One Year     Five Years    Five Years       Total
- - -----------------------------------------------------------------------------------------------------------------------------
<S>                                                                    <C>           <C>          <C>             <C>
Commercial and commercial real estate                                   $1,261.0      $ 1,340.4       $ 274.0      $2,875.4
Real estate construction                                                   185.4            ---           ---         185.4
                                                                        --------      ---------       -------      --------
  Total                                                                 $1,446.4      $ 1,340.4       $ 274.0      $3,060.8
                                                                        ========      =========       =======      ========
Loans above:
  With floating interest rates                                          $  863.8      $   221.3       $ 108.7      $1,193.8
  With predetermined
    interest rates                                                         582.6        1,119.1         165.3       1,867.0
                                                                        --------      ---------       -------      --------
    Total                                                               $1,446.4      $ 1,340.4       $ 274.0      $3,060.8
                                                                        ========      =========       =======      ========
- - -----------------------------------------------------------------------------------------------------------------------------
</TABLE>
                                    Page 12
<PAGE>   15


       Total loans increased $652.8 million or 12.4% in 1999 with average loans
comprising 80.4% of total average earning assets during 1999, as compared with
81.0% during 1998. Enhanced sales efforts and strong demand for business loans
in Citizens' markets along with the acquisition of approximately $88 million of
commercial loans from the Branch Purchase, increased commercial and commercial
real estate portfolio balances by 19.3% in 1999 from year-end 1998. Consumer
loans, which include installment and home equity loans, increased $129.7
million, or 10.1%, to $1.417 billion at year-end 1999 reflecting increased sales
efforts, higher marine loan balances and strong demand for home equity and
recreational vehicle loans in the latter half of 1999. Residential mortgage loan
balances increased $22.2 million or 1.6% in 1999. Demand for new residential
mortgage loans remained strong throughout most of 1999, but Citizens sold a
significant portion of that production to reduce its long-term interest rate
exposure and prepayment risk along with generating fee income. Prior to the F&M
merger, Citizens did not service its portfolio and servicing rights were sold
with the related loans. At December 31, 1999, $374.8 million of residential
mortgage loans originated by F&M and subsequently sold in the secondary market
were being serviced. Capitalized servicing rights relating to the serviced loans
totaled $3.3 million. Citizens intends to continue to service these loans and
may sell a portion of its future residential mortgage production with servicing
rights retained.

       NONPERFORMING ASSETS
       A five-year history of nonperforming assets is presented in Table 8.
Nonperforming assets are comprised of nonaccrual, restructured loans and
repossessed assets. Although these assets have more than a normal risk of loss,
they will not necessarily result in a higher level of losses in the future.
Nonperforming assets totaled $35.1 million as of December 31, 1999, a decrease
of 17.4% from the year-end 1998 balance of $42.5 million. As a percentage of
total assets, nonperforming assets declined to 0.45% at December 31, 1999, from
0.61% at December 31, 1998. The decline resulted from Citizens' continued
management of loan portfolio quality, favorable economic conditions and
additional charge-offs at F&M from implementing Citizens' charge-off guidelines
and credit risk policies after the merger.
       Nonperforming commercial and commercial real estate loans decreased to
$18.0 million at year-end 1999 from $19.8 million a year ago. These loans
comprised 57.9%, of total nonperforming loans at December 31, 1999, compared
with 52.6% in 1998. Citizens' commercial real estate portfolio represents 17.8%
of total loans at December 31, 1999 as compared with 15.0% at year 1998. Within
this portfolio, nonperforming loans represented 19.6% of total nonperforming
loans at December 31, 1999.

Management believes the risk of loss on such nonperforming loans is
significantly less than the total principal balance, due to the nature of the
underlying collateral. These loans are generally for owner-occupied properties
and do not rely on the performance of the real estate market to generate funds
for repayment. One to four family residential home loans comprise the majority
of the real estate mortgage balance.
       The consumer portfolio is comprised of automobile, personal, marine, home
equity and bankcard loans of which automobile and home equity comprise 62.5% of
1999 average balances. At December 31, 1999, consumer loans represented 18.4% of
nonperforming loans, down from 26.2% in 1998. A lower delinquency rate on
automobile loans and higher charge-offs in the first half of 1999 accounted for
most of this decrease.
       Citizens maintains formal policies and procedures to control and monitor
credit risk within these portfolios. Based upon present information, management
believes the allowance for loan losses is adequate to meet presently known
credit risks.
       The level and composition of nonperforming assets are affected by
economic conditions in Citizens' local markets. Nonperforming assets,
charge-offs and provisions for loan losses tend to decline in a strong economy
and increase in a weak economy, potentially impacting Citizens' results. In
addition to loans classified as nonperforming, management carefully monitors
other credits that are current in terms of principal and interest payments but,
in management's opinion, may deteriorate in quality if economic conditions
change. As of December 31, 1999, such loans amounted to $18.9 million or 0.3% of
total loans compared with $14.5 million or 0.3% of total loans as of December
31, 1998. These loans are primarily commercial and commercial real estate loans
made in the normal course of business and do not represent a concentration in
any one industry.
       Under Citizens' credit policies and practices, a loan is placed on
nonaccrual status when there is doubt regarding collection of principal or
interest, or when principal or interest is past due 90 days or more and the loan
is not well secured and in the process of collection. Interest accrued but not
collected is reversed and charged against income when the loan is placed on
nonaccrual status. A loan is considered impaired when management determines it
is probable that all the principal and interest due under the contractual terms
of the loans will not be collected. In most instances, impairment is measured
based on the fair value of the underlying collateral. Impairment may also be
measured based on the present value of expected future cash flows discounted at
the loan's effective interest rate. Citizens maintains a valuation allowance for
impaired loans. Interest income on impaired nonaccrual loans is recognized on a
cash basis. Interest income on all other impaired loans is recorded on an
accrual basis.

                                    Page 13

<PAGE>   16

<TABLE>
<CAPTION>
- - --------------------------------------------------------------------------------------------------------------------------
TABLE 8.  NONPERFORMING ASSETS AND PAST DUE LOANS

December 31 (in thousands)                                1999            1998         1997           1996          1995
- - --------------------------------------------------------------------------------------------------------------------------
<S>                                                  <C>               <C>           <C>           <C>           <C>
NONPERFORMING LOANS(1),(2)
     Nonaccrual
     Less than 30 days past due                          $ 1,661        $ 2,016       $ 5,128       $ 5,555       $ 4,794
     From 30 to 89 days past due                             772          1,641         2,021         1,370           828
     90 or more days past due                             26,498         31,485        28,813        33,025        26,063
                                                         -------        -------       -------       -------       -------
       Total                                              28,931         35,142        35,962        39,950        31,685
     90 days past due and still accruing                   2,139          2,474         3,022         2,773         1,602
     Restructured(1)                                           9            114           446           718         1,208
                                                         -------        -------      --------       -------       -------
       Total nonperforming loans                          31,079         37,730        39,430        43,441        34,495
OTHER REPOSSESSED ASSETS ACQUIRED                          4,039          4,790         4,869         4,996         4,290
                                                         -------        -------      --------       -------       -------
     Total nonperforming assets                          $35,118        $42,520      $ 44,299       $48,437       $38,785
                                                         =======        =======      ========       =======       =======
Nonperforming assets as a percent of total loans
     plus other repossessed assets acquired                 0.59 %         0.81 %        0.87 %        1.07 %        0.98 %
Nonperforming assets as a percent of total assets           0.45           0.61          0.67          0.78          0.66

NONPERFORMING LOANS BY TYPE (3)
     Commercial                                          $18,005        $19,830      $ 23,031       $13,299       $15,592
     Real estate mortgage                                  7,366          8,032         9,487         4,273         2,688
     Consumer                                              5,708          9,868         6,912         4,585         3,286
                                                         -------        -------      --------       -------       -------
       Total                                             $31,079        $37,730      $ 39,430       $22,157       $21,566
                                                         =======        =======      ========       =======       =======
- - --------------------------------------------------------------------------------------------------------------------------
</TABLE>

  (1) Nonperforming loans include loans on which interest is being recognized
      only upon receipt (nonaccrual), those on which interest has been
      renegotiated to lower than market rates because of the financial condition
      of the borrowers (restructured), and loans 90 days past due and still
      accruing.

  (2) Gross interest income that would have been recorded in 1999 for nonaccrual
      and restructured loans, as of December 31, 1999, assuming interest had
      been accrued throughout the year in accordance with original terms was
      $3.383 million. The comparable 1998 and 1997 totals were $3.315 million,
      and $3.586 million, respectively. Interest collected on these loans and
      included in income was $1.861 million in 1999, $1.845 million in 1998 and
      $1.334 million in 1997. Therefore, on a net basis, total income foregone
      due to these loans was $1.522 million in 1999, $1.470 million in 1998 and
      $2.252 million in 1997.

  (3) Nonperforming loans by type for F&M were not available in 1996 and 1995
      and have, therefore, been excluded.

       Certain of Citizens' nonperforming loans included in Table 8 are
considered to be impaired. Citizens measures impairment on all large balance
nonaccrual commercial and commercial real estate loans. Certain large balance
accruing loans rated substandard or worse are also measured for impairment.
Impairment losses are included in the provision for loan losses. The policy does
not apply to large groups of smaller balance homogeneous loans that are
collectively evaluated for impairment, except for those loans restructured under
a troubled debt restructuring. Loans collectively evaluated for impairment
include certain smaller balance commercial loans, consumer loans, residential
real estate loans, and credit card loans, and are not included in the impaired
loan data in the following paragraphs.
       At December 31, 1999, loans considered to be impaired totaled $27.5
million of which $18.5 million were on a nonaccrual basis. Included within this
amount is $13.1 million of impaired loans for which the related allowance for
loan losses is $1.5 million and $14.4 million of impaired loans for which fair
value exceeded the recorded investment in the loan. The average recorded
investment in impaired loans during the year ended December 31, 1999 was
approximately $32.5 million. For the year ended December 31, 1999, Citizens
recognized interest income of $1.3 million. Cash collected on nonaccrual
impaired loans totaled $1.5 million of which $0.9 million was applied to
principal and $0.6 million was recognized using the cash basis method of income
recognition.
       At December 31, 1998, loans considered to be impaired totaled $22.8
million of which $13.0 million were on a nonaccrual basis). Included with this
amount is $16.4 million of impaired loans for which the related allowance for
loan losses is $3.8 million and $6.4 million of impaired loans for which the
fair value exceeded the recorded investment in the loan. The average recorded
investment in impaired loans during the year ended December 31, 1998 was
approximately $27.5 million. For the year ended December 31, 1998, Citizens
recognized interest income of $1.3 million, which included $0.8 million of
interest income recognized using the cash basis method of income recognition.
       During 1999, the Corporation's banking subsidiaries received a normally
scheduled examination by its governing regulatory agency. There was no material
reclassification of assets as nonperforming resulting from these examinations.

                                    Page 14
<PAGE>   17

<TABLE>
<CAPTION>
- - ---------------------------------------------------------------------------------------------------------------------------
TABLE 9. AVERAGE DEPOSITS
                                                          1999                      1998                      1997
                                                 -----------------------  ----------------------  -------------------------
                                                   AVERAGE    AVERAGE        Average    Average        Average    Average
Year Ended December 31 (in millions)               BALANCE     RATE          Balance     Rate          Balance     Rate
- - ------------------------------------------------------------------------  -------------------------------------------------
<S>                                         <C>               <C>         <C>           <C>         <C>           <C>
Noninterest-bearing demand                      $   904.6       ---        $  829.8       ---        $  757.4       ---
Interest-bearing demand                             578.5      1.55 %         547.4      1.67 %         535.1      1.69 %
Savings                                           1,751.6      2.83         1,635.1      3.08         1,551.0      3.17
Time                                              2,672.0      5.18         2,604.6      5.65         2,515.9      5.69
                                                ---------                  --------                  --------
  Total                                         $ 5,906.7      3.33        $5,616.9      3.68        $5,359.4      3.76
                                                =========                  ========                  ========
- - ---------------------------------------------------------------------------------------------------------------------------
</TABLE>

       DEPOSITS
       Average deposit balances and rates for the past three years are
summarized in Table 9. Average 1999 deposit balances include the partial-year
effect of $442 million in deposits acquired from the Branch Purchase. Total
average deposits were 5.2% higher in 1999 as compared with 1998. Deposits
increased in all categories with significant increases in noninterest-bearing
demand and savings accounts. Average noninterest-bearing demand balances
increased 9.0% in 1999 versus the prior year. The increase is due to strong
growth from commercial deposit accounts, and to a lesser extent, balances
acquired from the Branch Purchase. Saving accounts increased 7.1% in 1999
primarily from significant increases in money market and investment rate savings
products. The overall average rate for the deposit portfolio decreased in 1999
to 3.33% from 3.68% in 1998. The decrease was the result of the lower overall
interest rate environment in the first half of 1999. As of December 31, 1999,
certificates of deposits of $100,000 or more accounted for approximately 11.3%
of total deposits. The maturities of these deposits are summarized in Table 10.

<TABLE>
<CAPTION>
- - -------------------------------------------------------------
TABLE 10. MATURITY OF TIME CERTIFICATES OF
DEPOSIT OF $100,000 OR MORE
                                              December 31,
(in thousands)                                    1999
- - -------------------------------------------------------------
<S>                                        <C>
Three months or less                             $ 340,999
After three but within six months                  139,787
After six but within twelve months                  92,549
After twelve months                                121,980
                                                 ---------
  Total                                          $ 695,315
                                                 =========
- - -------------------------------------------------------------
</TABLE>


       Citizens gathers deposits primarily from the local markets of its banking
subsidiaries and has not relied on purchased deposits for any significant
funding. Citizens may use brokered deposits as an ancillary source of funding
and during 1999, average brokered deposit balances were $14.9 million, compared
with $17.7 million in 1998. Citizens will continue to evaluate the use of
alternative funding sources such as brokered deposits as funding needs change.
Management continues to promote relationship driven core deposit growth and
stability through focused marketing efforts and competitive pricing strategies.


       BORROWED FUNDS
       Short-term borrowings are comprised primarily of Federal funds purchased,
securities sold under agreements to repurchase, FHLB advances and Treasury Tax
and Loan notes. Total short-term borrowings averaged $478.9 million in 1999, or
8.4% of total average interest-bearing liabilities, compared with $202.6 million
or 3.9% during 1998. The increase primarily reflects increased borrowings at the
subsidiary bank level due to higher growth rates in loans and other earning
assets than in traditional deposit funding. Additionally, for a four-month
period prior to the Branch Purchase transaction, Citizens leveraged its
anticipated core deposit growth by utilizing short-term FHLB advances to fund
purchases of Federal agency securities prior to the Branch Purchase.
Approximately $300 million of these advances matured in October 1999 and were
replaced with the new, lower rate core deposits. Additional short-term FHLB
advances borrowed in late 1999 were used to support continued loan growth in
Citizens' core markets. Long-term debt accounted for $210.3 million, or 3.7%, of
average interest-bearing funds during 1999, decreasing slightly from $229.0
million, or 4.4% during 1998. Borrowed funds are expected to remain an
important, reliable and cost-effective funding vehicle for Citizens and its
subsidiary banks as earning asset growth opportunities are expected to continue
to outpace traditional deposit growth.
       A summary of long-term debt balances as of December 31, 1999 and 1998
appears in Note 10 to the Consolidated Financial Statements. Citizens' Parent
company maintains a revolving $60.0 million credit facility with an unused
commitment of $18.0 million at December 31, 1999. The current facility will
mature on September 2, 2000 and is expected to renew for a similar period at
that time. The interest rate on the $42 million outstanding at December 31, 1999
reprices daily and is based on the Federal funds rate. The Parent company
services the debt's principal and interest

                                    Page 15
<PAGE>   18

payments with dividends from the subsidiary banks. The agreement also requires
Citizens to maintain certain financial covenants. Citizens is in full compliance
with all debt covenants as of December 31, 1999.


       CAPITAL RESOURCES
       Citizens continues to maintain a strong capital position which supports
its current needs and provides a sound foundation to support further expansion.
At December 31, 1999, shareholders' equity was $633.7 million, compared with
$680.5 million at December 31, 1998. Repurchase of Citizens common stock and
unrealized fair value depreciation in the available for sale securities
portfolio along with a reduction in net earnings retained after payment of cash
dividends led to the decline in stockholders' equity. Book value per common
share at December 31, 1999 and 1998 was $13.32 and $14.07, respectively.
       Citizens has consistently maintained regulatory capital ratios at or
above the "well-capitalized" standards and all bank subsidiaries of Citizens
have sufficient capital to maintain a well capitalized designation. Citizens'
capital ratios for the past three years is presented below.

<TABLE>
<CAPTION>
- - -------------------------------------------------------------------
                Regulatory Minimum
                ------------------
                         "Well                   December 31,
                                      -----------------------------
                Required Capitalized"     1999     1998     1997
- - -------------------------------------------------------------------
Risk based:
<S>                <C>     <C>         <C>      <C>      <C>
  Tier I capital    4.00%    6.00%       9.22%   11.01%   10.50%
  Total capital     8.00    10.00       10.47    12.26    11.76

Tier I leverage     4.00     5.00        7.21     8.95     8.00
- - -------------------------------------------------------------------
</TABLE>

       During 1999, Citizens maintained two stock repurchase plans. The stock
repurchase plan initiated in May 1998 ("Plan I"), allows for the repurchase of
up to 600,000 shares for treasury to satisfy Citizens' obligation to issue
shares under its existing employee and director stock option plans. As of
December 31, 1999, 567,200 shares were repurchased under Plan I. In January
1999, Citizens initiated a second stock repurchase plan ("Plan II") that
provided for the repurchase of up to 1,400,000 shares of its common stock for
general bank purposes, all of which were repurchased during 1999.
       Citizens declared cash dividends of $0.915 per share in 1999, an increase
of 11.6% over 1998 dividends of $0.82 per share. Citizens Banking Corporation or
its predecessor, Citizens Commercial & Savings Bank, have paid dividends every
year since 1892 except for several years during the depression of the 1930's.



LIQUIDITY AND DEBT CAPACITY
       The liquidity position of Citizens is monitored for both its subsidiaries
and its Parent company to ensure that funds are available at a reasonable cost
to meet financial commitments, to finance business expansion and to take
advantage of unforeseen opportunities. Citizens' subsidiary banks derive
liquidity primarily through core deposit growth, maturity of money market
investments, and maturity and sale of investment securities and loans.
Additionally, Citizens' subsidiary banks have access to market borrowing sources
on an unsecured, as well as a collateralized basis, for both short-term and
long-term purposes including, but not limited to, the Federal Reserve and
Federal Home Loan Banks where the subsidiary banks are members. Another source
of liquidity is the ability of Citizens' Parent company to borrow funds on both
a short-term and long-term basis. The parent has established borrowing
facilities with a group of unaffiliated banks and has used portions of this
revolving credit agreement for various corporate purposes.
       During 1999, Citizens continued its strategy to operate at lower levels
of on balance sheet liquidity, thereby improving the asset mix, resulting in
increased net interest income. Citizens experienced no liquidity or operational
problems as a result of its liquidity levels. Management believes that the key
to operating at lower levels of balance sheet liquidity is the establishment and
subsequent utilization of sufficient sources of liquidity. Proactive management
of Citizens' liquidity capacity and generation has increased sources of funds
and borrowing capacities enabling Citizens and its subsidiary banks to operate
effectively, safely and with improved profitably.
       The subsidiary banks manage liquidity to meet client cash flow needs
while maintaining funds available for loan and investment opportunities. As
discussed in Note 18 to the Consolidated Financial Statements, the Federal
Reserve Bank requires Citizens' banking subsidiaries to maintain certain
noninterest-bearing deposits with the Federal Reserve Bank. These balance
requirements averaged $45.7 million and $40.3 million during 1999 and 1998,
respectively, and were primarily satisfied with cash balances maintained by
Citizens' subsidiaries.
       The liquidity of the Parent company is managed to provide funds to pay
dividends to shareholders, service debt, invest in subsidiaries and to satisfy
other operating requirements. The primary source of liquidity for the Parent
company is dividends and returns of investment from its subsidiaries. During
1999, the Parent company received $42.9 million in dividends from subsidiaries
and paid $30.0 million in dividends to its shareholders. The amount of dividends
to the Parent still allowed the subsidiary banks to maintain sufficient capital
to be designated well-capitalized.

                                    Page 16

<PAGE>   19

As discussed in Note 18 to the Consolidated Financial Statements, approximately
$31.7 million was available as of January 1, 2000 for payment to the Parent
company as dividends by Citizens' banking subsidiaries without further
regulatory approval. Amounts earned by subsidiaries in 2000 will also become
available for such dividend payments. Additional amounts may be available for
payment subject to regulatory approval.
       Citizens' long-term debt to equity ratio was 20.1% as of December 31,
1999 compared to 33.2% in 1998. Changes in long-term debt during 1999 are
discussed in the section titled "Borrowed Funds". Management believes that
Citizens has sufficient liquidity and capacity sources to meet presently known
cash flow requirements arising from ongoing business transactions.


INTEREST RATE RISK
       Interest rate risk generally arises when the maturity or repricing
structure of Citizens' assets and liabilities differ significantly.
Asset/liability management, used by Citizens to address such risk, is the
process of developing, testing and implementing strategies that seek to maximize
net interest income, maintain sufficient liquidity and minimize exposure to
significant changes in interest rates. This process includes monitoring
contractual and expected repricing of assets and liabilities as well as
forecasting earnings under different interest rate scenarios and balance sheet
structures. Generally, management seeks a structure that insulates net interest
income from large swings attributable to changes in market interest rates. Table
11 depicts Citizens' asset/liability static sensitivity ("GAP") as of December
31, 1999 and 1998.
       As shown, Citizens' interest rate risk position at December 31, 1999 is
liability sensitive in the less than one year time frame with rate sensitive
liabilities exceeding rate sensitive assets by $979.1 million. Application of
GAP theory would suggest that with such a position Citizens' net interest income
could decline if interest rates rise; i.e., liabilities are likely to reprice
faster than assets, resulting in a decrease in net income in a rising rate
environment. Conversely, net income should increase in a falling rate
environment. Net interest income is not only affected by the level and direction
of interest rates, but also by the shape of the yield curve, relationships
between interest sensitive instruments and key driver rates, as well as balance
sheet growth and the timing of changes in these variables. Management is
continually reviewing its interest rate risk position and modifying its
strategies based on projections to minimize the impact of future interest rate
changes. While traditional GAP analysis does not always incorporate adjustments
for the magnitude or timing of non-contractual repricing, Table 11 does
incorporate appropriate adjustments as indicated in footnotes 1 and 2 to the
table. Because of these and other inherent limitations of any GAP analysis,
management utilizes net interest income simulation modeling as its primary tool
to evaluate the impact of changes in interest rates and balance sheet
strategies. Management uses these simulations to develop strategies that can
limit interest rate risk and provide liquidity to meet client loan demand and
deposit preferences.


INTEREST RATE SENSITIVITY
       A number of measures are used to monitor and manage interest rate risk,
including income simulation and interest sensitivity (GAP) analyses. An income
simulation model is management's primary tool used to assess the direction and
magnitude of variations in net interest income resulting from changes in
interest rates. Key assumptions in the model include prepayment speeds on
various loan and investment assets; cash flows and maturities of financial
instruments held for purposes other than trading; changes in market conditions,
loan volumes, and pricing; deposit sensitivity; client preferences; and
management's financial capital plans. These assumptions are inherently
uncertain, subject to fluctuation and revision in a dynamic environment and, as
a result, the model cannot precisely estimate net interest income or exactly
predict the impact of higher or lower interest rates on net interest income.
Actual results will differ from simulated results due to timing, magnitude, and
frequency of balance sheet component and interest rate changes and changes in
market conditions and management strategies, among other factors.
       Results of the multiple simulations done as of December 31, 1999 suggest
that Citizens could expect net interest income to increase by $23.2 million (if
asset and liability balances remain static and interest rates gradually decline
by 200 basis points over the next twelve months) and, to increase by $3.2
million (if asset and liability balances remain static and interest rates
gradually increase by 200 basis points over the next twelve months) from 1999
levels of net interest income. These variances in net interest income were well
within Citizens' policy parameters established to manage such risk. Management
performed a large number of net interest income simulations using varying
balance sheet scenarios and differing interest rate environments. The model
results presented herein are intended to illustrate the potential variation in
net interest income from the indicated changes in interest rates, and not to
project future levels of net interest income. In addition to changes in interest
rates, the level of future net interest income is also dependent on a number of
other variables, including the growth, composition and absolute levels of
deposits, loans, and other earning assets and interest bearing liabilities,
economic and competitive conditions, client preferences and other factors.

                                    Page 17

<PAGE>   20

<TABLE>
<CAPTION>
- - ----------------------------------------------------------------------------------------------------------------------------
TABLE 11. INTEREST RATE SENSITIVITY
                                                                                TOTAL
                                             0 - 3      4 - 6      7 - 12      WITHIN       1 - 5       Over
(dollars in millions)                       Months      Months     Months      1 YEAR       Years      5 Years     Total
- - ----------------------------------------------------------------------------------------------------------------------------
<S>                                     <C>           <C>         <C>        <C>         <C>        <C>         <C>
DECEMBER 31, 1999
    RATE SENSITIVE ASSETS(1)
      Loans and leases                     $1,699.8    $ 355.9    $  549.9    $2,605.6    $2,601.9   $   710.0   $5,917.5
      Investment securities                   106.5       40.1        49.0       195.6       522.3       654.3    1,372.2
      Short-term investments                   88.9        ---         ---        88.9         0.1         ---       89.0
                                           --------    -------    --------    --------    --------   ---------   --------
            Total                          $1,895.2    $ 396.0    $  598.9    $2,890.1    $3,124.3   $ 1,364.3   $7,378.7

    RATE SENSITIVE LIABILITIES
      Deposits (2)                         $1,037.5    $ 689.7    $1,122.4    $2,849.6    $2,036.7   $   276.8   $5,163.1
      Other interest bearing
         liabilities                          937.9       81.3         0.4     1,019.6        14.7        30.1    1,064.4
                                           --------    -------    --------    --------    --------   ---------   --------
            Total                          $1,975.4    $ 771.0    $1,122.8    $3,869.2    $2,051.4   $   306.9   $6,227.5

    Period GAP (3)                         $  (80.2)   $(375.0)   $ (523.9)   $ (979.1)   $1,072.9   $ 1,057.4   $1,151.2
    Cumulative GAP                            (80.2)    (455.2)     (979.1)                   93.8     1,151.2
    Cumulative GAP to
      total assets                            (1.00)%    (5.76)%    (12.39)%    (12.39)%     1.19%       14.57%     14.57%
    Multiple of rate sensitive
      assets to liabilities                    0.96       0.51        0.53        0.75        1.52        4.45       1.18

- - ----------------------------------------------------------------------------------------------------------------------------

DECEMBER 31, 1998
    RATE SENSITIVE ASSETS(1)
      Loans and leases                     $1,657.7    $ 343.9     $ 562.3    $2,563.9    $1,958.4    $  742.4   $5,264.7
      Investment securities                   151.7       87.0       149.3       388.0       410.2       325.3    1,123.5
      Short-term investments                  108.6        ---         ---       108.6         ---         ---      108.6
                                           --------    -------     -------    --------    --------    --------   --------
            Total                          $1,918.0    $ 430.9     $ 711.6    $3,060.5    $2,368.6    $1,067.7   $6,496.8
                                           ========    =======     =======    ========    ========    ========   ========

    RATE SENSITIVE LIABILITIES
      Deposits (2)                          $ 920.4    $ 726.1    $1,034.9    $2,681.4    $1,898.4    $  279.1   $4,858.9
      Other interest bearing
         liabilities                          245.9        0.5        65.9       312.3        26.8        72.2      411.3
                                           --------    -------    --------    --------    --------   ---------   --------
            Total                          $1,166.3    $ 726.6    $1,100.8    $2,993.7    $1,925.2    $  351.3   $5,270.2
                                           ========    =======     =======    ========    ========    ========   ========

    Period GAP (3)                          $ 751.7    $(295.7)   $ (389.2)   $   66.8    $  443.4    $  716.4   $1,226.6
    Cumulative GAP                            751.7      456.0        66.8                   510.2     1,226.6
    Cumulative GAP to
      total assets                            10.85%      6.58%       0.96%       0.96%       7.36%      17.70%     17.70%
    Multiple of rate sensitive
      assets to liabilities                    1.64       0.59        0.65        1.02        1.23        3.04       1.23

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

 (1) Incorporates prepayment projections for certain assets which may shorten
     the time frame for repricing or maturity compared to contractual runoff.
 (2) Includes interest bearing savings and demand deposits without contractual
     maturities of $839 million in the less than one year category and $1.581
     billion in the over one year category as of December 31, 1999.  The same
     amounts as of  December 31, 1998 were $767 million and $1.538 billion,
     respectively.  This runoff is based on historical trends, which reflects
     industry standards.
 (3) GAP is the excess of rate sensitive assets (liabilities).

                                    Page 18
<PAGE>   21


IMPACT OF INFLATION
       Substantially all of the assets and liabilities of a financial
institution are monetary. Therefore, inflation generally has a less significant
impact on financial institutions than fluctuations in market interest rates.
Inflation can lead to accelerated growth in noninterest expenses, which can
adversely impact results of operations. Additionally, inflation may impact the
rate of deposit growth and necessitate increased growth in equity to maintain a
strong capital position. Management believes the most significant impact on
financial results is Citizens' ability to respond to changes in interest rates.


OTHER
       RECENT ACCOUNTING PRONOUNCEMENTS
       SFAS No. 133, Accounting for Derivative Instruments and Hedging
Activities, as amended by SFAS No. 137, Accounting for Derivative Instruments
and Hedging Activities - Deferral of the Effective Date of FASB Statement No.
133, establishes accounting and reporting standards for hedging activities and
for derivative instruments, including certain derivative instruments embedded in
other contracts. This statement requires a company to recognize all derivatives
as either assets or liabilities in its balance sheet and measure those
instruments at fair value. If certain conditions are met, a derivative may be
specifically designated as a fair value, cash flow, or foreign currency hedge.
The accounting for changes in the fair value of a derivative (i.e., gains and
losses) depends on the intended use of the derivative and the resulting
designation. For derivative instruments not accounted for as hedges, changes in
fair value are required to be recognized in earnings. If Citizens elects to
apply hedge accounting, offsetting changes in fair value or cash flows of both
the derivative and the hedged asset or liability would be recognized in earnings
in the same period. Changes in fair value or cash flow that represent the
ineffective portion of a hedge are required to be recognized in earnings and
cannot be deferred. Citizens is also required to establish at the inception of
the hedge the method it will use for assessing the effectiveness of the hedging
derivative and the measurement approach for determining the ineffective aspect
of the hedge. Citizens plans to adopt the provision of this Statement, as
amended, for its quarterly and annual reporting beginning January 1, 2001. The
impact of adopting the provisions of this Statement on Citizens' financial
position, results of operations and cash flow subsequent to the effective date
is not currently estimable and will depend on the financial position of Citizens
and the nature and purpose of any derivative instruments in use at that time.

       IMPACT OF YEAR 2000
       During 1999, management completed the process of preparing for the Year
2000 date change. This process involved identification and remediation of date
recognition problems in all computer-based systems, applications and
non-information technology systems necessary for continued operations beyond
December 31, 1999. It also included working with third parties to address their
Year 2000 issues and developing contingency plans to address potential risks in
the event of Year 2000 failures. To date, Citizens has successfully managed the
transition with all bank systems including over 240 ATMs and more than 220
branch offices operating smoothly.
       Although considered unlikely, unanticipated problems in Citizens core
business processes, including problems associated with non-compliant third
parties and disruptions to the economy in general, could still occur despite
efforts to date to remediate affected systems and develop contingency plans.
Management will continue to monitor all business processes, vendors and other
third parties, throughout 2000 to address any issues and ensure all processes
continue to function properly.
       Cost related to the year 2000 issue were funded by operating cash flows.
Through year-end 1999, Citizens incurred total Year 2000 project costs of $3.1
million, which included $2.0 million in capitalized costs for new hardware and
software and $1.1 million in costs primarily related to internal and external
personnel who worked on the project. Additional costs to be incurred in 2000 for
ongoing monitoring and support activities are not expected to be material.


FORWARD-LOOKING STATEMENTS
       The foregoing disclosure contains "forward-looking statements" within the
meaning of the Securities Act of 1933 and the Securities Exchange Act of 1934,
both as amended, with respect to expectations for future periods. These forward
looking statements involved are subject to risk and uncertainties that could
cause actual results to differ. These risks and uncertainties include
unanticipated changes in the competitive environment and relationships with
third party vendors and clients and certain other factors discussed in this
report. Management believes that the expectations used in the forward looking
statements are reasonable, however actual results may vary significantly.

                                    Page 19

<PAGE>   22

<TABLE>
<CAPTION>
- - ------------------------------------------------------------------------------------------------------------------------------------
TABLE 12. SELECTED QUARTERLY INFORMATION
                                                            1999                                               1998
                                        -----------------------------------------------  -------------------------------------------
(in thousands except  per share data)   FOURTH        THIRD       SECOND       FIRST        Fourth      Third       Second    First
- - ---------------------------------------------------------------------------------------  -------------------------------------------
<S>                                 <C>            <C>          <C>         <C>          <C>         <C>         <C>        <C>
Interest income                      $ 144,531     $ 138,354    $ 130,687   $ 128,835    $ 129,509   $ 131,375   $ 131,105  $130,328
Interest expense                        63,391        59,773       54,402      54,351       55,310      57,433      58,048    58,482
Net interest income                     81,140        78,581       76,285      74,484       74,199      73,942      73,057    71,846
Provision for loan losses               11,422 (2)     4,370        4,812       4,071        4,185       3,867       4,273     4,203
Investment securities gains (losses)    (3,584)(2)        39          301         192          227         191           7        50
Other noninterest income                19,390        19,351       25,180      20,275       18,162      18,574      17,925    16,132
Noninterest expense                     99,303 (2)    59,551       61,416      56,706       54,293      55,730      54,944    53,252
Net income (loss)                       (9,229)(2)    23,425       24,355      23,443       23,859      23,175      22,029    21,219

PER SHARE OF COMMON STOCK(3)
Net income (loss):
     Basic                               (0.19)(2)      0.49         0.50        0.48         0.49        0.48        0.45      0.44
     Diluted                             (0.19)(2)      0.49         0.50        0.47         0.49        0.47        0.45      0.43
Cash dividends declared                  0.235         0.235        0.235        0.21         0.21        0.21        0.21      0.19
Market value:(1)
     High                                29.94         31.25        42.25       36.06        35.38       36.13       37.00     37.13
     Low                                 21.25         25.19        28.63       31.00        26.75       28.00       32.88     27.50
     Close                               22.38         26.13        30.06       36.00        33.75       32.88       33.63     35.69

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

(1) Citizens Banking Corporation common stock is traded on the National Market
    tier of the Nasdaq stock market (trading symbol: CBCF).  At December 31,
    1999, there were approximately 15,000 shareholders of the Corporation's
    common stock.

(2) Fourth quarter 1999 results include after-tax charges of $35.2 million or
    $0.72 per diluted share.  Pre-tax, the charges consist of $40.2 million for
    F&M Bancorporation merger, purchase of 17 offices of Banc One Corporation,
    branch reconfigurations and other non-recurring items; $3.6 million for
    repositioning of the securities portfolio; and $6.8 million for additional
    loan loss provision at the merged banks.

(3) Per share information reflects a three-for-two stock split effected in the
    form of a dividend paid to shareholders on November 18, 1997.

YEAR ENDED DECEMBER 31, 1998 COMPARED WITH 1997
       Citizens reported net income of $90.3 million, or $1.84 per diluted
share, in 1998, compared with $54.9 million, or $1.15 per diluted share, in
1997. Reported net income for 1997 included a special charge of $23.7 million
($17.3 million after tax) for costs associated with Citizens merger with CB
Financial Corporation ("CB") and the reorganization Citizens' information
technology operations. Excluding this special charge, 1998 net income increased
25.1% or $0.33 per share over 1997 net operating earnings of $72.2 million or
$1.51 per share. On this same basis, return on average assets for 1998 was
1.33%, compared with 1.12% in 1997. Overall, the increase in net income in 1998
reflects improvement in net interest income and higher noninterest income,
offset in part by higher noninterest expenses and higher income tax expense.
       Net interest income for 1998 was $293.0 million, an increase of 6.6% over
1997 net interest income of $274.9 million. This increase resulted from higher
levels of earning assets partially offset by increased interest bearing
liabilities. Yields on earning assets decreased to 8.39%, compared with 8.45% in
1997. The decrease resulted from lower yields principally on commercial loans
and, to a lesser extent tax-exempt investment securities. Rates paid on funding
sources decreased eight basis points to 4.39% due to lower rates paid on all
interest-bearing liability categories. As a result, the net interest margin
increased to 4.79% in 1998 as compared with 4.74% in 1997.
       The provision for loan losses decreased to $16.5 million in 1998 from
$20.5 million in 1997. The decrease in 1998 is due to a higher than normal loan
loss provision taken in 1997 by F&M in anticipation of certain nonaccrual loan
charge-offs and a decrease in nonperforming assets. Net loan charge-offs to
average total loans increased one basis point to 0.30% as compared to 0.29% in
1997. The allowance for loan losses as a percentage of total loans remained
unchanged at 1.32%.
       Noninterest income accounted for 12.0% of total operating revenues or
1.0% of average assets in 1998, increasing from 10.5% or 0.9%, respectively, in
1997. Noninterest income increased $12.9 million from 1997 primarily due to
growth in trust fees, cash management fees, brokerage and investment fees,
mortgage and other loan income, and new title insurance services.
       Excluding the special charge, noninterest expense increased $9.3 million
or 4.5% in 1998, from 1997. This increase is primarily due to new data
processing and data communication costs and higher training and travel costs
resulting from Citizens' information technology partnership with M&I Data
Services, entered into in the third quarter of

                                    Page 20
<PAGE>   23


1997. Income tax expense for 1998 increased 24.0% compared with 1997 (before the
special charge). This increase resulted from higher pre-tax operating earnings
offset, in part, by slightly higher tax-exempt interest income.
       Citizens had total average assets of $6.793 billion in 1998, up from 1997
average assets of $6.440 billion. Average loans comprise 81.0% of total earning
assets in 1998, up from 80.3% in 1997. The growth occurred primarily in the
commercial loan and commercial real estate portfolios due to focused sales
efforts and a relatively low interest rate environment. Average investment
securities, including money market investments, decreased to 19.0% of average
earning assets in 1998 from 19.7% in 1997. The decline in investment securities
was used to fund loan growth.
       Total average deposits were 4.8% higher in 1998, compared with 1997.
Average short-term borrowings, comprised primarily of securities sold under
agreements to repurchase, decreased to 3.9% of average interest-bearing funds in
1998, compared to 5.2% in 1997. Long-term debt accounted for $229.0 million or
4.4% of average interest-bearing funds during 1998, increasing from $144.3
million or 2.9% in 1997. The shift from short-term borrowings to long-term debt
reflected the attractiveness of long-term financing versus short-term borrowings
in a relatively low interest rate environment. Average shareholders' equity was
$655.0 million in 1998, a 9.7% increase over the 1997 average of $597.2 million.

                                    Page 21
<PAGE>   24

<TABLE>
<CAPTION>
- - -----------------------------------------------------------------------------------------------------------------------------------
CONSOLIDATED BALANCE SHEETS
CITIZENS BANKING CORPORATION AND SUBSIDIARIES

                                                                                                    December 31,
(in thousands, except share amounts)                                                        1999                   1998
- - -----------------------------------------------------------------------------------------------------------------------------------
ASSETS
<S>                                                                                     <C>                    <C>
  Cash and due from banks                                                               $  250,745             $  221,880
  Money market investments:
   Interest-bearing deposits with banks                                                        755                    500
   Federal funds sold                                                                       63,048                 86,048
   Other                                                                                    25,161                 22,046
                                                                                        ----------             ----------
    Total money market investments                                                          88,964                108,594
  Securities available-for-sale (amortized cost $1,399,012 in 1999; $951,305 in 1998)    1,372,186                963,354
  Securities held-to-maturity (fair value $168,419 in 1998)                                    ---                160,132
  Loans:
   Commercial                                                                            2,875,387              2,410,419
   Real estate construction                                                                185,352                149,522
   Real estate mortgage                                                                  1,440,104              1,417,856
   Consumer                                                                              1,416,640              1,286,909
                                                                                        ----------             ----------
    Total loans                                                                          5,917,483              5,264,706
   Less: Allowance for loan losses                                                         (76,397)               (69,740)
                                                                                        ----------             ----------
    Net loans                                                                            5,841,086              5,194,966
  Premises and equipment                                                                   141,460                127,980
  Intangible assets                                                                         97,032                 68,449
  Other assets                                                                             107,884                 85,178
                                                                                        ----------             ----------
    TOTAL ASSETS                                                                        $7,899,357             $6,930,533
                                                                                        ==========             ==========
LIABILITIES
   Noninterest-bearing deposits                                                         $  965,849             $  913,846
   Interest-bearing deposits                                                             5,163,149              4,858,946
                                                                                        ----------             ----------
    Total deposits                                                                       6,128,998              5,772,792
  Federal funds purchased and securities sold
   under agreements to repurchase                                                          276,805                172,183
  Other short-term borrowings                                                              660,474                 12,971
  Other liabilities                                                                         72,307                 65,915
  Long-term debt                                                                           127,104                226,171
                                                                                        ----------             ----------
    Total liabilities                                                                    7,265,688              6,250,032
SHAREHOLDERS' EQUITY
  Preferred stock - no par value:
   Authorized - 5,000,000 shares; Issued - none
  Common stock - no par value:
   Authorized - 100,000,000 shares
   Issued and outstanding - 47,567,809 in 1999; 48,373,307 in 1998                         226,972                276,439
  Retained earnings                                                                        424,140                396,516
  Other accumulated comprehensive income (loss)                                            (17,443)                 7,546
                                                                                        ----------             ----------
    Total shareholders' equity                                                             633,669                680,501
                                                                                        ----------             ----------
      TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY                                        $7,899,357             $6,930,533
                                                                                        ==========             ==========
- - -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>

See Notes to Consolidated Financial Statements.

                                    Page 22

<PAGE>   25

<TABLE>
<CAPTION>
- - ------------------------------------------------------------------------------------------------------------------------------------
CONSOLIDATED STATEMENTS OF INCOME

CITIZENS BANKING CORPORATION AND SUBSIDIARIES
(in thousands, except share amounts)                                    1999          1998          1997
- - ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                                <C>           <C>            <C>
INTEREST INCOME
  Interest and fees on loans                                         $463,071     $ 450,178       $426,106
  Interest and dividends on investment securities:
    Taxable                                                            59,081        49,413         52,057
    Nontaxable                                                         17,151        16,944         17,209
  Money market investments                                              3,104         5,782          3,336
                                                                     --------     ---------       --------
      Total interest income                                           542,407       522,317        498,708
INTEREST EXPENSE
  Deposits                                                            196,871       206,608        201,422
  Short-term borrowings                                                23,692         9,806         13,223
  Long-term debt                                                       11,354        12,859          9,206
                                                                     --------     ---------       --------
      Total interest expense                                          231,917       229,273        223,851
                                                                      -------     ---------       --------
NET INTEREST INCOME                                                   310,490       293,044        274,857
Provision for loan losses                                              24,675        16,528         20,511
                                                                     --------     ---------       --------
      Net interest income after provision for loan losses             285,815       276,516        254,346
                                                                     --------     ---------       --------
NONINTEREST INCOME
  Trust fees                                                           21,701        19,627         16,065
  Service charges on deposit accounts                                  21,378        18,803         18,180
  Bankcard fees                                                         9,163         7,899          7,019
  Mortgage and other loan income                                        5,230         7,298          3,594
  Brokerage and investment fees                                         4,325         2,677          2,021
  Cash management services                                              2,556         2,405          1,823
  Investment securities gains (losses)                                 (3,052)          475           (572)
  Equity security gain                                                  5,693           ---            ---
  Premium from sale of deposits                                         1,348           ---            ---
  Other                                                                12,802        12,084         10,267
                                                                     --------     ---------       --------
    Total noninterest income                                           81,144        71,268         58,397
                                                                     --------     ---------       --------
NONINTEREST EXPENSE
  Salaries and employee benefits                                      122,572       115,088        110,240
  Equipment                                                            16,645        17,088         16,259
  Occupancy                                                            15,414        15,074         14,935
  Intangible asset amortization                                         8,363         7,631          6,787
  Bankcard fees                                                         7,477         5,894          5,152
  Stationery and supplies                                               5,674         5,609          5,621
  Postage and delivery                                                  5,985         5,925          5,990
  Advertising and public relations                                      5,223         5,842          5,950
  Data processing fees                                                  9,924         7,943          2,747
  Special charge                                                       40,198           ---         23,734
  Other                                                                39,501        32,125         35,240
                                                                     --------     ---------       --------
    Total noninterest expense                                         276,976       218,219        232,655
                                                                     --------     ---------       --------
INCOME BEFORE INCOME TAXES                                             89,983       129,565         80,088
Income taxes                                                           27,989        39,283         25,197
                                                                     --------     ---------       --------
NET INCOME                                                           $ 61,994     $  90,282       $ 54,891
                                                                     ========     =========       ========
NET INCOME PER SHARE:
  Basic                                                              $   1.29     $    1.86       $   1.17
  Diluted                                                                1.28          1.84           1.15
AVERAGE SHARES OUTSTANDING:
  Basic                                                            48,169,121    48,426,590     47,042,744
  Diluted                                                          48,617,207    49,084,509     47,652,265
- - ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

See Notes to Consolidated Financial Statements.

                                     Page 23


<PAGE>   26

<TABLE>
<CAPTION>

- - ------------------------------------------------------------------------------------------------------------------------------------
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY
CITIZENS BANKING CORPORATION AND SUBSIDIARIES
                                                                                                        Accumulated
                                                                                                           Other
                                                                        Common          Retained       Comprehensive
(in thousands, except per share amounts)                                 Stock          Earnings       Income (loss)     Total
- - -----------------------------------------------------------------------------------------------------------------------------------
<S>                                                                   <C>              <C>             <C>            <C>
BALANCE - JANUARY 1, 1997                                             $ 191,314        $ 372,173       $   1,777      $ 565,264

  Net income                                                                              54,891                         54,891
  Net unrealized gain on securities available-for-sale,
    net of tax effect of $2,120                                                                            3,881          3,881
                                                                                                                      ---------
      Total comprehensive income                                                                                         58,772
  Exercise of stock options, net of
    shares purchased                                                      2,189                                           2,189
  Cash dividends - $0.74 per share                                                       (19,286)                       (19,286)
  Cash dividends of pooled company, pre-merger                                            (8,984)                        (8,984)
  Shares acquired for retirement                                             (9)             (82)                           (91)
  Pre-merger transactions of pooled company                              27,445          (14,534)                        12,911
                                                                      ---------        ---------       ---------      ---------
BALANCE - DECEMBER 31, 1997                                             220,939          384,178           5,658        610,775

  Net income                                                                              90,282                         90,282
  Net unrealized gain on securities available-for-sale,
    net of tax effect of $1,266                                                                            1,888          1,888
                                                                                                                      ---------
      Total comprehensive income                                                                                         92,170
  Exercise of stock options, net of
    shares purchased                                                      4,738                                           4,738
  Cash dividends - $0.82 per share                                                       (22,991)                       (22,991)
  Cash dividends of pooled company, pre-merger                                           (12,572)                       (12,572)
  Shares acquired for retirement                                         (8,846)                                         (8,846)
  Pre-merger transactions of pooled company                              59,608          (42,381)                        17,227
                                                                      ---------        ---------       ---------      ---------
BALANCE - DECEMBER 31, 1998                                             276,439          396,516           7,546        680,501

  Net income                                                                              61,994                         61,994
  Net unrealized loss on securities available-for-sale,
    net of tax effect of $13,913                                                                         (24,989)       (24,989)
                                                                                                                      ---------
      Total comprehensive income                                                                                         37,005
  Exercise of stock options, net of
    shares purchased                                                      3,349                                           3,349
  Cash dividends - $0.915 per share                                                      (30,035)                       (30,035)
  Cash dividends of pooled company, pre-merger                                           (11,766)                       (11,766)
  Shares acquired for retirement                                        (53,866)                                        (53,866)
  Pre-merger transactions of pooled company                               1,050            7,431                          8,481
                                                                      ---------        ---------       ---------      ---------
BALANCE - DECEMBER 31, 1999                                           $ 226,972        $ 424,140       $ (17,443)     $ 633,669
                                                                      =========        =========       =========      =========
- - -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>
See Notes to Consolidated Financial Statements.

                                     Page 24

<PAGE>   27
<TABLE>
<CAPTION>
- - ------------------------------------------------------------------------------------------------------------------------------------
CONSOLIDATED STATEMENTS OF CASH FLOWS
CITIZENS BANKING CORPORATION AND SUBSIDIARIES
                                                                                                  YEAR ENDED DECEMBER  31,
(in thousands)                                                                        1999                 1998             1997
- - ------------------------------------------------------------------------------------------------------------------------------------
<S>                                                                               <C>                   <C>               <C>
OPERATING ACTIVITIES:
  Net income                                                                      $  61,994             $  90,282         $ 54,891
  Adjustments to reconcile net income to net cash provided by
    operating activities:
    Provision for loan losses                                                        24,675                16,528           20,511
    Depreciation                                                                     14,148                12,391           12,293
    Amortization of goodwill and other intangibles                                    8,363                 7,631            6,787
    Intangible asset impairment                                                       2,349                   ---            7,570
    Deferred income tax (credit)                                                     (7,953)                1,836           (5,681)
    Net amortization on investment securities                                         2,743                 1,748            1,061
    Investment securities losses (gains)                                              3,052                  (475)             572
    Loans originated for sale                                                      (117,603)             (219,269)         (51,510)
    Proceeds from loan sales                                                        118,477               220,674           51,736
    Equity security gain                                                             (5,693)                  ---              ---
    Premium on sale of branch deposits                                               (1,348)                  ---              ---
    Accrued merger related and other charges                                         17,387                   ---              ---
    Other                                                                            (8,909)              (12,857)          (3,887)
                                                                                  ---------             ---------        ---------
      Net cash provided by operating activities                                     111,682               118,489           94,343
INVESTING ACTIVITIES:
  Net (increase) decrease in money market investments                                28,630               (44,344)          30,784
  Securities available-for-sale:
    Proceeds from sales                                                              85,288                14,114          180,055
    Proceeds from maturities                                                        373,228               468,672          235,627
    Purchases                                                                      (680,123)             (525,299)        (297,132)
  Securities held-to-maturity:
    Proceeds from maturities                                                         25,304                28,330           20,782
    Purchases                                                                       (71,454)              (12,311)         (25,485)
  Net increase in loans and leases                                                 (520,999)             (117,974)        (481,054)
  Net increase in properties and equipment                                          (20,221)              (23,228)          (7,848)
  Proceeds from sale of Magic Line, Inc. stock                                        5,693                   ---              ---
  Acquisitions (net of cash acquired)                                               317,214                (1,066)           5,837
                                                                                  ---------             ---------        ---------
      Net cash used by investing activities                                        (457,440)             (213,106)        (338,434)
FINANCING ACTIVITIES:
  Net increase (decrease) in demand and savings deposits                           (115,749)              228,647           64,785
  Net increase (decrease) in time deposits                                          (70,131)              (89,132)         130,766
  Net increase (decrease) in short-term borrowings                                  751,888               (64,982)           4,644
  Proceeds from issuance of long-term debt                                           58,598               129,256          267,979
  Principal reductions in long-term debt                                           (157,665)              (85,978)        (204,520)
  Cash dividends paid                                                               (41,801)              (35,563)         (28,098)
  Proceeds from stock options exercised                                               3,349                 4,738            2,189
  Shares acquired for retirement                                                    (53,866)               (8,846)             (91)
                                                                                  ---------             ---------        ---------
      Net cash provided by financing activities                                     374,623                78,140          237,654
                                                                                  ---------             ---------        ---------
Net increase (decrease) in cash and due from banks                                   28,865               (16,477)          (6,437)
Cash and due from banks at beginning of period                                      221,880               238,357          244,794
                                                                                  ---------             ---------        ---------
Cash and due from banks at end of period                                          $ 250,745             $ 221,880        $ 238,357
                                                                                  =========             =========        =========
Supplemental Cash Flow Information:
  Interest paid                                                                   $ 233,689             $ 233,443        $ 225,913
  Income taxes paid                                                                  38,444                38,814           30,186
- - ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

See Notes to Consolidated Financial Statements.
                                     Page 25

<PAGE>   28
NOTE 1. SIGNIFICANT ACCOUNTING POLICIES
     The accounting and reporting policies of Citizens Banking Corporation
("Citizens") and its subsidiaries conform to generally accepted accounting
principles. Management makes estimates and assumptions that affect the amounts
reported in the financial statements and accompanying notes. Actual results
could differ from these estimates. The following describes Citizens' policies:
     CONSOLIDATION: The Consolidated Financial Statements include the accounts
of Citizens and its subsidiaries after elimination of all material intercompany
transactions and accounts.
     INVESTMENT SECURITIES AND TRADING ACCOUNT ASSETS: Debt and equity
securities are classified as held-to-maturity, available-for-sale or trading.
Securities classified as held-to-maturity are reported at amortized cost, with
those available-for-sale and trading reported at fair value with unrealized
gains and losses included in shareholders' equity or other income, respectively.
In the event that an investment security is sold, the adjusted cost of the
specific security sold is used to compute the applicable gain or loss. At
year-end 1999, trading assets totaled $2.4 million. There were no trading assets
at December 31, 1998.
     ALLOWANCE FOR LOAN LOSSES: The allowance for loan losses is maintained at a
level considered by management to be adequate to absorb losses inherent in the
loan portfolio. Management's evaluation is based on a continuing review of the
loan portfolio and includes consideration of actual loss experience, the
financial condition of borrowers, the size and composition of the loan
portfolio, current economic conditions and other pertinent factors. The
allowance is increased by the provision charged to income and recoveries of
loans previously charged off and reduced by loans charged off.
     The allowance established for certain impaired loans is determined based on
the fair value of the investment measured using either the present value of
expected future cash flows discounted at the initial effective interest rate on
the loan, the observable market price of the loan, or the fair value of the
collateral if the loan is collateral dependent. A loan is considered impaired
when management determines it is probable that all the principal and interest
due under the contractual terms of the loan will not be collected.
     PREMISES AND EQUIPMENT: Premises and equipment, including leasehold
improvements, are carried at cost less accumulated depreciation and
amortization. Depreciation and amortization are computed principally on a
straight-line basis and are charged to expense over the lesser of the estimated
useful life of the assets or lease term. Maintenance and repairs as well as
gains and losses on dispositions are charged to expense as incurred.
     OTHER REAL ESTATE: Other real estate includes properties acquired in
satisfaction of a debt. These properties are carried at the lower of cost or
fair value, net of estimated costs to sell, based upon current appraised value.
Losses arising from the acquisition of such properties are charged against the
allowance for loan losses. Subsequent valuation adjustments and gains or losses
on disposal of these properties are charged to other expenses as incurred.
     INTANGIBLE ASSETS: Goodwill, the excess of cost over the fair value of net
identifiable tangible and intangible assets acquired in acquisitions accounted
for as purchases, is amortized on a straight-line basis over periods ranging
from 10 to 20 years. The carrying amount of goodwill is reviewed for impairment
as events or changes in facts and circumstances warrant. Impairment of goodwill
is evaluated by geographic region and is based on a comparison of the recorded
balance of goodwill to the applicable discounted cash flows over the remaining
amortization period of the associated goodwill. To the extent that impairment
may exist, the current carrying amount is reduced by the estimated shortfall.
     LOAN SALES AND SERVICING RIGHTS: Gains and losses on the sales of loans are
determined using the specific-identification method. When servicing is retained,
the servicing rights are amortized in proportion to, and over the period of,
estimated net servicing revenues. Impairment of servicing rights is assessed
based on the fair value of those rights. Fair values are estimated using
discounted cash flows based on a current market interest rate. For purposes of
measuring impairment, the rights are stratified by rate in the quarter in which
the related loans were sold.
     INCOME TAXES: Citizens and its subsidiaries file a consolidated federal
income tax return. Income tax expense is based on income as reported in the
Consolidated Statements of Income. When income and expenses are recognized in
different periods for tax purposes, applicable deferred taxes are provided in
the Consolidated Financial Statements.
     LOAN INTEREST AND FEE INCOME: Interest on loans is generally accrued and
credited to income based upon the principal amount outstanding. Loans are placed
on nonaccrual status when the collection of principal or interest is considered
doubtful, or payment of principal or interest is past due 90 days or more and
the loan is not well secured and in the process of collection. When these loans
(including a loan impaired) are placed on nonaccrual status, all interest
previously accrued but unpaid is reversed against current year interest income.
Interest payments received on nonaccrual loans are credited to income if future
collection of principal is probable. Loans are normally restored to accrual
status when interest and principal payments are current and it is believed that
the financial condition of the borrower has improved to the extent that future
principal and interest payments will be met on a timely basis. Loan origination
fee income, net of direct origination costs and certain incremental direct
costs, is deferred and amortized as a yield adjustment over the estimated term
of the related loans by methods that approximate the level yield method.
     NET INCOME PER SHARE: Basic net income per share is based on net income
divided by the weighted average number of shares outstanding in each period.
Diluted net income per share shows the dilutive effect of additional common
shares issuable upon the assumed exercise of stock options granted

                                     Page 26
<PAGE>   29

under Citizens' stock option plans, using the treasury stock method.
     CASH FLOWS: For purposes of reporting cash flows, cash and cash equivalents
include cash on hand and amounts due from banks.
     RECLASSIFICATIONS: Certain amounts have been reclassified to conform to the
current year presentation.


NOTE 2. MERGERS AND ACQUISITION
     On October 8, 1999, Citizens completed the acquisition of seventeen former
Bank One offices located in the northern section of Michigan's Lower Peninsula
(the "Branch Purchase"). The transaction was accounted for as a purchase;
accordingly, the assets acquired and liabilities assumed were recorded at
estimated fair value. The Branch Purchase added approximately $88 million in
loans and $442 million in deposits. Citizens paid a premium of $36.1 million or
10.13% of certain core deposits. The acquired branches' results of operations
have been included in Citizens' consolidated totals from the date of acquisition
only.
     On July 1, 1997, Citizens merged with CB Financial Corporation
headquartered in Jackson, Michigan. As part of the merger, Citizens issued 6.3
million shares of its common stock for all of the outstanding shares of CB
Financial Corporation. On November 1, 1999, Citizens merged with F&M
Bancorporation, Inc. ("F&M") headquartered in Kaukauna, Wisconsin. Citizens
issued 21.0 million shares of its common stock, based on a fixed exchange ratio
of 1.303, for all of the outstanding shares of F&M. These transactions were
accounted for as a pooling of interests. All financial data presented have been
restated to reflect these combinations. Unaudited details of the results of
operations of the previously separate corporations for the periods prior to
combinations are as follows:

<TABLE>
<CAPTION>
- - --------------------------------------------------------------------------------
                           (unaudited)
(in thousands,except     Ten Months Ended     Year Ended December 31,
per share data)          October 31, 1999      1998             1997
- - --------------------------------------------------------------------------------
<S>                           <C>            <C>             <C>
Net Interest Income
    Citizens                  $169,351       $197,846        $174,909
    CB Financial (1)                --             --          16,939
    F&M Bancorporation          87,201         95,198          83,009
                              --------       --------        --------
    Combined                  $256,552       $293,044        $274,857
                              ========       ========        ========
Net Income
    Citizens                  $ 48,459       $ 56,785        $ 28,619
    CB Financial (1)                --             --           2,889
    F&M Bancorporation          31,084         33,497          23,383
                              --------       --------        --------
    Combined                  $ 79,543       $ 90,282        $ 54,891
                              ========       ========        ========
Diluted net income per
common share
    Citizens                  $   1.75       $   1.98        $   1.11
    CB Financial (1)                --             --            1.03
    F&M Bancorporation            1.93           2.15            1.58
    Combined                      1.63           1.84            1.15
==================================================================================
</TABLE>

(1)  Represents the results of operations for the six month period ending June
     30, 1997.

NOTE 3. SPECIAL CHARGE
     The following provides details on the Special Charge recorded in 1999 in
connection with the F&M merger and other corporate initiatives:

<TABLE>
<CAPTION>

                                                4th Qtr 1999 Charge               Amount Utilized          Reserve
                                    ----------------------------------------  -------------------------    Balance
                                        Merger                      Total                                December 31,
(in thousands)                         Related        Other        Expense        Cash      Non-cash         1999
- - -----------------------------------------------------------------------------------------------------------------------
<S>                                 <C>           <C>           <C>           <C>           <C>          <C>
Employee benefits and severance     $   7,068.9   $     413.0   $   7,481.9   $     144.0   $     --     $   7,337.9
Contract termination and
  other conversion costs               13,597.8                    13,597.8       4,240.9                    9,356.9
Professional fees                       5,596.2         749.0       6,345.2       5,710.7                      634.5
Facilities and equipment                1,501.5       1,853.4       3,354.9                    3,354.9          --
Goodwill & core deposit
  premium write-downs                   2,075.0         274.1       2,349.1                    2,349.1          --
Equity investment write-down                            519.9         519.9                      519.9          --
Charitable trust                        2,500.0                     2,500.0       2,500.0                       --
Other                                   3,963.8          85.6       4,049.4       2,788.1      1,203.7          57.6
                                    -----------   -----------   -----------   -----------   ----------   -----------
  Total                             $  36,303.2   $   3,895.0   $  40,198.2   $  15,383.7   $  7,427.6   $  17,386.9
                                    ===========   ===========   ===========   ===========   ==========   ===========
</TABLE>



                                    Page 27
<PAGE>   30

     The Special Charge in 1999 consists of $36.3 million ($25.9 million
after-tax) in merger-related integration costs and $3.9 million ($2.5 million
after-tax) of restructuring and other costs related to separate corporate
initiatives and impairment write-offs. As shown above, merger integration costs
consisted of personnel-related expenses, transaction costs, contract termination
and other conversion costs (primarily recognition of obligations under existing
contractual agreements related to system conversions), asset-related
write-downs, a write-down of impaired goodwill at an F&M bank, a contribution to
Citizens' Charitable Trust for the acquired entities and other transaction
related costs. Costs associated with strategic initiatives approved in the
fourth quarter of 1999 as well as a write-down of a core deposit premium from a
previous acquisition and a loss for an other than temporary decline in the
market value of an equity investment makeup the $3.9 million in restructuring
and other costs. The strategic initiatives approved in 1999 included realignment
of Citizens branch network, including closure of eighteen (18) branches in
Michigan and Illinois and transfer of Citizens internal audit and corporate loan
review functions to a third party. The remaining reserve balance at December 31,
1999 of $17.4 million is related primarily to severance, employee contracts and
contractual obligations under existing agreements and is expected to be utilized
in 2000.
     In the third quarter of 1997 a special charge of $23.7 million ($17.3
million after tax) related to the July 1, 1997 merger with CB Financial
Corporation and the reorganization of Citizens' information technology
operations was recorded. The special charge consisted of $16.1 million of merger
related expenses and $7.6 million related to the information technology
reorganization. An adjustment of $931,000 was recorded against noninterest
expense to eliminate the restructuring liability in 1998. The following presents
a summary of the 1997 special charge activity for 1998 and 1997.

<TABLE>
<CAPTION>
- - -----------------------------------------------------------

                                  Year Ended December 31,
(in thousands)                        1998        1997
- - -----------------------------------------------------------
<S>                               <C>         <C>
Beginning balance                   $ 4,895   $ 23,734
Intangible assets impairment            ---     (7,570)
Premises and equipment writedown       (202)    (2,773)
Cash payments                        (3,762)    (8,496)
Adjustment                             (931)       ---
                                    -------   --------
Balance at December 31              $   ---   $  4,895
                                    =======   ========

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


NOTE 4. INVESTMENT SECURITIES
     The amortized cost, estimated fair value and gross unrealized gains and
losses of investment securities follow:

<TABLE>
<CAPTION>
- - ---------------------------------------------------------------------------------------------------------------------------------
                                          DECEMBER 31, 1999                                   December 31, 1998
                            -------------------------------------------------   -------------------------------------------------
                                         ESTIMATED      GROSS        GROSS                   Estimated     Gross         Gross
                            AMORTIZED      FAIR      UNREALIZED    UNREALIZED    Amortized     Fair      Unrealized    Unrealized
(in thousands)                 COST        VALUE        GAINS        LOSSES        Cost        Value        Gains        Losses
- - ---------------------------------------------------------------------------------------------------------------------------------
<S>                         <C>          <C>          <C>          <C>          <C>          <C>          <C>          <C>
AVAILABLE FOR SALE:
  U.S. Treasury             $   35,014   $   34,487   $       12   $      539   $   55,382   $   56,026   $      644   $       --
  Federal agencies:
    Mortgage-backed            657,795      643,219          683       15,259      496,475      497,474        2,800        1,801
    Other                      248,000      242,729           16        5,287      146,092      146,950        1,010          152
  State and municipal          375,866      368,732        2,946       10,080      159,500      164,444        5,094          150
  Mortgage and asset-backed     28,761       28,421           18          358       31,407       31,670          341           78
  Other                         53,576       54,598        1,094           72       62,449       66,790        4,520          179
                            ----------   ----------   ----------   ----------   ----------   ----------   ----------   ----------
Total available for sale    $1,399,012   $1,372,186   $    4,769   $   31,595   $  951,305   $  963,354   $   14,409   $    2,360
                            ==========   ==========   ==========   ==========   ==========   ==========   ==========   ==========

HELD TO MATURITY:
  State and municipal       $       --   $       --   $       --   $       --   $  160,132   $  168,419   $    8,291   $        4
                            ==========   ==========   ==========   ==========   ==========   ==========   ==========   ==========
=================================================================================================================================
</TABLE>

                                    Page 28
<PAGE>   31


     The amortized cost and estimated fair value of debt securities by
contractual maturity at December 31, 1999 are shown below.

<TABLE>
<CAPTION>
- - -----------------------------------------------------------
                                               Estimated
                               Amortized          Fair
 (in thousands)                   Cost           Value
- - -----------------------------------------------------------
<S>                           <C>             <C>
Due within one year           $    35,537     $    35,765
One to five years                 232,407         229,361
Five to ten years                 237,613         234,967
After ten years                   156,430         149,073
                              -----------     -----------
                                  661,987         649,166
Equity securities                  50,469          51,380
Mortgage and asset-backed
 securities                       686,556         671,640
                              -----------     -----------
 Total                        $ 1,399,012     $ 1,372,186
                              ===========     ===========
===========================================================
</TABLE>

     Sales of investment securities resulted in realized gains and losses as
follows:

<TABLE>
<CAPTION>
- - ------------------------------------------------------------
                                  Year Ended December 31,
(in thousands)                  1999        1998      1997
- - ------------------------------------------------------------
<S>                           <C>           <C>      <C>
Securities gains              $    561      $ 504    $  326
Securities losses               (3,613)       (29)     (898)
                              --------      -----    ------
Net gain (loss)               $ (3,052)     $ 475    $ (572)
                              ========      =====    ======
=============================================================
</TABLE>


     Securities with amortized cost of $717.2 million at December 31, 1999, and
$320.2 million at December 31, 1998, were pledged to secure public deposits,
repurchase agreements, and other liabilities. Except for obligations of the U.S.
Government and its agencies, no holdings of securities of any single issuer
exceeded 10% of consolidated shareholders' equity at December 31, 1999 or 1998.
     In December 1999, in order to provide for more effective asset/liability
management, the entire held to maturity securities portfolio of F&M was
transferred to available for sale. The held to maturity portfolio had an
amortized cost of $208.3 million and fair value of $204.7 million at the date of
transfer. The unrealized loss of $3.6 million is included, net of tax, in
accumulated other comprehensive income.
     The Financial Accounting Standards Board Statement No. 133, as amended by
SFAS No. 137, establishes accounting and reporting standards for hedging
activities and for derivative instruments, including certain derivative
instruments embedded in other contracts. This statement requires a company to
recognize all derivatives as either assets or liabilities in its balance sheet
and measure those instruments at fair value. Citizens plans to adopt this
statement as amended effective January 1, 2001. The impact of adopting the
provisions of this Statement on Citizens' financial position, results of
operations and cash flow subsequent to the effective date is not currently
estimable and will depend on the financial position of Citizens and the nature
and purpose of the derivative instruments in use at that time.


NOTE 5. LOANS AND NONPERFORMING ASSETS
     With the merger of F&M on November 1, 1999, Citizens now extends credit
within the five midwestern states of Michigan, Wisconsin, Illinois, Iowa, and
Minnesota. In Michigan the primary market area includes most parts of the Lower
Peninsula. In Wisconsin the primary market area is the Fox Valley region
extending from Green Bay to Appleton to Oshkosh as well as northeastern and
southwestern Wisconsin. Other primary market areas are central Iowa; the western
suburban market of Chicago, Illinois; and Dundas, Minnesota. Citizens seeks to
limit its credit risk by establishing guidelines to review its aggregate
outstanding commitments and loans to particular borrowers, industries and
geographic areas. Collateral is secured based on the nature of the credit and
management's credit assessment of the customer.
       Citizens' loan portfolio is widely diversified by borrowers with no
concentration within a single industry that exceeds 10% of total loans. Citizens
has no loans to foreign countries and generally does not participate in large
national loan syndications or highly leveraged transactions. Most of Citizens'
commercial real estate loans consist of mortgages on owner-occupied properties.
Those borrowers are involved in business activities other than real estate, and
the sources of repayment are not dependent on the performance of the real estate
market.
     A summary of nonperforming assets follows:

<TABLE>
<CAPTION>
- - ------------------------------------------------------------
                                            December 31,
(in thousands)                            1999       1998
- - ------------------------------------------------------------
<S>                                      <C>        <C>
Nonperforming loans:
 Nonaccrual                              $ 28,931   $ 35,142
 Loans 90 days past due (still accruing)    2,139      2,474
 Restructured                                   9        114
                                         --------   --------
  Total nonperforming loans                31,079     37,730
Other real estate                           3,040      3,751
Other assets acquired by repossession         999      1,039
                                         --------   --------
  Total nonperforming assets             $ 35,118   $ 42,520
                                         ========   ========
============================================================
</TABLE>

     The effect of nonperforming loans on interest income follows:

<TABLE>
<CAPTION>
- - -------------------------------------------------------------
                                  Year Ended December 31,
(in thousands)                      1999    1998     1997
- - -------------------------------------------------------------
<S>                               <C>      <C>      <C>
Interest income:
At original contract rates        $ 3,383  $ 3,315  $ 3,586
As actually recognized              1,861    1,845    1,334
                                  -------  -------  -------
Interest foregone                 $ 1,522  $ 1,470  $ 2,252
                                  =======  =======  =======
=============================================================
</TABLE>

                                    Page 29
<PAGE>   32

     There are no significant commitments outstanding to lend additional funds
to clients whose loans were classified as nonaccrual or restructured at December
31, 1999.
     At December 31, 1999, loans considered to be impaired totaled $27.5 million
of which $18.5 million were on a nonaccrual basis. Included within this amount
is $13.1 million of impaired loans for which the related allowance for loan
losses is $1.5 million and $14.4 million of impaired loans for which fair value
exceeded the recorded investment in the loan. The average recorded investment in
impaired loans during the year ended December 31, 1999 was approximately $32.5
million. For the year ended December 31, 1999, Citizens recognized interest
income of $1.3 million. Cash collected on nonaccrual impaired loans totaled $1.5
million of which $0.9 million was applied to principal and $0.6 million was
recognized using the cash basis method of income recognition.
     At December 31, 1998, loans considered to be impaired totaled $22.8 million
of which $13.0 million were on a nonaccrual basis. Included with this amount is
$16.4 million of impaired loans for which the related allowance for loan losses
is $3.8 million and $6.4 million of impaired loans for which the fair value
exceeded the recorded investment in the loan. The average recorded investment in
impaired loans during the year ended December 31, 1998 was approximately $27.5
million. For the year ended December 31, 1998, Citizens recognized interest
income of $1.3 million, which included $0.8 million of interest income
recognized using the cash basis method of income recognition.
     Certain directors and executive officers of Citizens and its significant
subsidiaries, including their families and entities in which they have 10% or
more ownership, were clients of the banking subsidiaries. Total loans to these
clients aggregated $20.0 million and $25.3 million at December 31, 1999 and
1998, respectively. During 1999, new loans of $7.0 million were made and
repayments totaled $12.3 million. Substantially all such loans were made in the
ordinary course of business on substantially the same terms, including interest
rates and collateral, as those for comparable transactions with unrelated
parties and did not involve more than normal risk of collectibility.
     The consolidated financial statements do not include loans serviced for
others, which totaled $374.8 million and $285.7 million at December 31, 1999 and
1998, respectively. There was no impairment of mortgage servicing rights, and
the carrying value of mortgage servicing rights approximates the fair market
value at December 31, 1999 and 1998.
     Changes in originated mortgage servicing rights for the years ended
December 31 were as follows:

<TABLE>
<CAPTION>
- - -----------------------------------------------------------
(in thousands)                            1999      1998
- - -----------------------------------------------------------
<S>                                      <C>         <C>
Balance - January 1                      $ 2,603   $   731
   Mortgage servicing rights capitalized   1,468     2,592
   Amortization                             (736)     (720)
                                         -------   -------
Balance - December 31                    $ 3,335   $ 2,603
                                         =======   =======
===========================================================
</TABLE>


NOTE 6. ALLOWANCE FOR LOAN LOSSES

     A summary of changes in the allowance for loan losses follows:

<TABLE>
<CAPTION>
- - -------------------------------------------------------------
(in thousands)                  1999      1998       1997
- - -------------------------------------------------------------
<S>                            <C>       <C>        <C>
Balance - January 1            $ 69,740  $ 67,010   $ 59,029
  Allowance of acquired banks
   and branches                   2,400     1,745      1,329
Provision for loan losses        24,675    16,528     20,511
Charge-offs                     (26,862)  (19,795)   (18,480)
Recoveries                        6,444     4,252      4,621
                               --------  --------   --------
   Net charge-offs              (20,418)  (15,543)   (13,859)
                               --------  --------   --------
Balance - December 31          $ 76,397  $ 69,740   $ 67,010
                               ========  ========   ========
=============================================================
</TABLE>



NOTE 7. PREMISES AND EQUIPMENT
     A summary of premises and equipment follows:

<TABLE>
<CAPTION>
- - -------------------------------------------------------------
                                            December 31,
(in thousands)                            1999        1998
- - -------------------------------------------------------------
<S>                                    <C>          <C>
Land                                   $  21,433    $ 19,415
Buildings                                140,126     131,588
Leasehold improvements                     6,111       5,362
Furniture and equipment                  125,333     115,891
                                       ---------    --------
                                         293,003     272,256
Accumulated depreciation
 and amortization                       (151,543)   (144,276)
                                       ---------    --------
Total                                  $ 141,460    $127,980
                                       =========    ========
=============================================================
</TABLE>

     Certain branch facilities and equipment are leased under various operating
leases. Total rental expense, including expenses related to these operating
leases, was $4.1 million in 1999, $4.7 million in 1998 and $3.8 million in 1997.
Future minimum rental commitments under non-cancelable operating leases are as
follows at December 31, 1999: $3.1 million in 2000, $2.2 million in 2001, $1.9
million in 2002, $1.6 million in 2003, $0.3 million in 2004, and $1.1 million
after 2004.

                                    Page 30
<PAGE>   33

NOTE 8. DEPOSITS
     A summary of deposits follows:

<TABLE>
<CAPTION>
- - ------------------------------------------------------------
                                         December 31,
(in thousands)                         1999          1998
- - ------------------------------------------------------------
<S>                                 <C>           <C>
Noninterest-bearing demand          $   965,849   $  913,846
Interest-bearing demand                 609,578      598,149
Savings                               1,811,142    1,705,552
Time deposits over $100,000             695,315      616,907
Other time deposits                   2,047,114    1,938,338
                                    -----------   ----------
  Total                             $ 6,128,998   $5,772,792
                                    ===========   ==========
============================================================
</TABLE>


     Excluded from total deposits are demand deposit account overdrafts, which
have been reclassified as loans. At December 31, 1999 and 1998, these overdrafts
totaled $6.1 million and $4.7 million, respectively. Time deposits with
remaining maturities of one year or more are $732.1 million at December 31,
1999. The maturities of these time deposits are as follows: $349.8 million in
2001, $149.7 million in 2002, $110.8 million in 2003, $96.8 million in 2004 and
$25.0 million after 2004.


NOTE 9. SHORT-TERM BORROWINGS
     Short-term borrowings consist of Federal funds purchased and securities
sold under agreements to repurchase, Federal Home Loan Bank ("FHLB") borrowings,
other bank borrowings, and demand notes to the U.S. Treasury. Federal funds
purchased are overnight borrowings from other financial institutions. Securities
sold under agreements to repurchase are secured transactions done principally
with clients and generally mature within thirty days.
     Citizens' Parent company maintains a short-term line of credit with three
banks totaling $60 million. The interest rate on the outstanding balance of $42
million at December 31, 1999 reprices daily and is based upon the Federal funds
rate. Interest is payable monthly and the remaining principal is due in
September 2000. The Parent company services the debt's principal and interest
payments with dividends from the subsidiary banks. The agreement also requires
Citizens to maintain certain financial covenants. Citizens is in full compliance
with all debt covenants as of December 31, 1999.

       Information relating to federal funds purchased and securities sold under
agreements to repurchase follows:

<TABLE>
<CAPTION>
- - ----------------------------------------------------------------
(in thousands)             1999         1998         1997
- - ----------------------------------------------------------------
<S>                        <C>            <C>          <C>
At December 31:
  Balance                  $  276,805     $172,183     $216,483
  Weighted average
    interest rate paid           5.20%        4.14%        5.64%
During the year:
  Maximum outstanding
    at any month-end       $  326,339     $233,684     $331,419
  Daily average               256,718     $179,147      225,925
  Weighted average
    interest rate paid           4.74%        4.78%        5.04%
================================================================
</TABLE>

     In 1999 a significant amount of short-term borrowings also consisted of
FHLB advances and lines of credit to subsidiary banks. Information relating to
short-term FHLB borrowings follows:

<TABLE>
<CAPTION>
- - ------------------------------------
(in thousands)             1999 (1)
- - ------------------------------------
<S>                        <C>
At December 31:
  Balance                  $555,874
  Weighted average
   interest rate paid          5.34%
During the year:
  Maximum outstanding
   at any month-end        $555,874
  Daily average             196,055
  Weighted average
   interest rate paid          5.26%
====================================
</TABLE>

(1) Prior year amounts were immaterial.

NOTE 10. LONG-TERM DEBT
     A summary of long-term debt follows:

<TABLE>
<CAPTION>
- - ---------------------------------------------------------
                                        December 31,
(in thousands)                        1999       1998
- - ---------------------------------------------------------
<S>                                 <C>        <C>
CITIZENS (PARENT ONLY):
  Revolving credit facility         $    ---   $  13,000
                                    --------   ---------
   Total                                 ---      13,000
SUBSIDIARIES:
  FHLB Notes                         126,854     212,784
  Other                                  250         387
                                    --------   ---------
   Total                             127,104     213,171
                                    --------   ---------
Total long-term debt                $127,104   $ 226,171
                                    ========   =========
=========================================================
</TABLE>

                                    Page 31
<PAGE>   34

     Long-term advances from the FHLB are at fixed and variable rates ranging
from 4.90% to 7.73% and have maturities ranging from three to fifteen years.
Interest is paid monthly. At December 31, 1999, qualifying mortgage loans of
$1.330 billion and FHLB stock collateralized long and short-term advances from
the FHLB.

     Maturities of long-term debt during the next five years follow:

<TABLE>
<CAPTION>
- - -------------------------------------------------------
(in thousands)
- - -------------------------------------------------------
<S>                                            <C>
2000                                           $  3,131
2001                                             25,236
2002                                             25,542
2003                                              1,548
2004                                              2,256
Over 5 Years                                     69,391
                                               --------
  Total                                        $127,104
                                               ========
=======================================================
</TABLE>




NOTE 11. EMPLOYEE BENEFIT PLANS
     PENSION AND POSTRETIREMENT BENEFITS: Citizens has a noncontributory,
defined benefit pension plan covering substantially all non-F&M employees.
Retirement benefits are based on the employee's length of service and salary
levels. Actuarially determined pension costs are charged to current operations.
Additionally, Citizens maintains defined benefit plans sponsored by two
subsidiary banks of F&M (the "F&M Plans") covering substantially all of the
employees of these banks. The participants in these F&M Plans do not accrue any
additional benefit for service. The funding policy for all plans is to
contribute annually an amount sufficient to meet or exceed the minimum funding
requirements of applicable laws and regulations, plus such additional amounts as
Citizens deems appropriate up to that allowable by federal tax regulations.
     Nonqualified supplemental benefit plans for certain key employees are also
maintained and are being provided for by charges to earnings sufficient to meet
the projected benefit obligation. The defined pension benefits provided under
these plans are unfunded and any payments to plan participants are made by
Citizens.
     Citizens also sponsors a postretirement benefit plan offering medical and
life insurance benefits. The plan, as amended, is available to full-time
employees who retire at normal retirement age, were age 50 prior to January 1,
1993 and have at least 15 years of credited service under Citizens' defined
benefit pension plan. The medical portion of the plan is contributory to the
participants. The life insurance coverage is noncontributory and provided on a
reducing basis for 5 years. Those retired prior to January 1, 1993 receive
benefits provided by the plan prior to its amendment. That plan included dental
care, had some contribution requirements, and has less restrictive eligibility
requirements.
     The following table shows the benefit obligation, plan assets, funded
status, amounts recognized in the consolidated balance sheets and lists the
assumption used in determining the actuarial present value of the benefit
obligation for all plans except the F&M Plans, which are separately presented.

<TABLE>
<CAPTION>

- - ------------------------------------------------------------------------------------
                                                               Other Post-
                                      Pension                   Retirement
                                     Benefits                    Benefits
                              ------------------------ -----------------------------
(in thousands)                   1999        1998          1999          1998
- - ------------------------------------------------------------------------------------
<S>                              <C>         <C>          <C>             <C>
CHANGE IN PLAN ASSETS
Fair value of plan assets
  at beginning of year           $ 56,793    $ 52,417     $     ---       $     ---
Actual return on plan assets        8,967       6,554           ---             ---
Employer contribution                 234         214         1,052             920
Participant contribution                          ---           135              83
Expenses paid                         (89)        (99)          ---             ---
Benefits paid                      (2,258)     (2,293)       (1,187)         (1,003)
                                 --------    --------     ---------       ---------
Fair value of plan assets
  at end of year                   63,647      56,793           ---             ---
                                 --------    --------     ---------       ---------
CHANGE IN BENEFIT OBLIGATION
Benefit obligation
  at beginning of year             49,464      43,337        13,231          13,513
Service cost                        2,304       2,023            12              16
Interest cost                       3,504       3,259           919             936
Participant contribution              ---         ---           135              83
Actuarial (gains) losses           (5,084)      3,138         1,313            (122)
Curtailment gain                      (84)        ---           ---             ---
Plan amendment                        ---         ---           ---            (192)
Benefits paid                      (2,258)     (2,293)       (1,187)         (1,003)
                                 --------    --------     ---------       ---------
Benefit obligation
  at end of year                   47,846      49,464        14,423          13,231
                                 --------    --------     ---------       ---------
RECONCILIATION OF FUNDED STATUS
Funded status of the plans         15,801       7,329       (14,423)        (13,231)
Unrecognized:
  Net asset at transition -
    recognized over 16 yrs.          (329)       (537)          ---             ---
  Prior service cost                  463         436          (426)           (886)
  Net actuarial gain              (19,634)    (11,023)         (515)         (1,885)
                                 --------    --------     ---------       ---------
Accrued benefit cost
  recognized in the
  consolidated balance
  sheets                         $ (3,699)   $ (3,795)    $ (15,364)      $ (16,002)
                                 ========    ========     =========       =========
====================================================================================

WEIGHTED-AVERAGE ASSUMPTIONS
  AS OF DECEMBER 31
Discount rate                        8.00%       7.25%         8.00%           7.25%
Rate of compensation
  increase                             (1)         (1)           (1)             (1)
Expected return on
  plan assets                        9.75        9.75           ---             ---

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

(1)  Scaled by age of plan participant - 9.00% at age 24 or under declining to
     4.00% at age 50 or older.

                                    Page 32
<PAGE>   35

     The accrued pension benefit cost shown above includes the pension
liabilities for plans where accumulated plan benefits exceed assets. The
projected benefit obligation and accumulated benefit obligation for these
supplemental benefit plans were approximately $3.1 and $2.9 million,
respectively, as of December 31, 1999 and $3.2 and $3.0 million, respectively,
as of December 31, 1998.
     Plan assets of the defined benefit pension plan consisted primarily of
mutual and money market funds, and listed bonds and equity securities, including
$467,000 and $704,000 of Citizens common stock at December 31, 1999 and 1998,
respectively.
     The following table shows the benefit obligations, plan assets, funded
status and amounts recognized in Citizens' consolidated balance sheets for the
F&M Plans.

<TABLE>
<CAPTION>
- - ------------------------------------------------------------------
                                   F&M Bank         BancSecurity
                                Waushara County      Corporation
                               -----------------  -----------------
(in thousands)                   1999     1998       1999    1998
- - ------------------------------------------------------------------
<S>                             <C>      <C>        <C>     <C>
CHANGE IN PLAN ASSETS
Fair value of plan assets
  at beginning of year          $1,330   $1,398     $6,900  $6,629
Actual return on plan assets        74       67        322     505
Employer contribution               99      116        ---     ---
Benefits paid                     (124)    (251)      (341)   (234)
                                ------   ------     ------  ------
Fair value of plan assets
  at end of year                 1,379    1,330      6,881   6,900
                                ------   ------     ------  ------
CHANGE IN BENEFIT OBLIGATION
Benefit obligation
  at beginning of year           2,048    2,109      6,924   6,754
Service cost                       ---      ---        ---     354
Interest cost                      119      126        395     509
Actuarial (gains) losses          (509)      64     (1,891)   (459)
Benefits paid                     (124)    (251)      (341)   (234)
                                ------   ------     ------  ------
Benefit obligation
  at end of year                 1,534    2,048      5,087   6,924
                                ------   ------     ------  ------
RECONCILIATION OF FUNDED STATUS
Funded status of the plans        (155)    (718)     1,794     (24)
Unrecognized:
  Net asset at transition          ---      ---        (53)    (63)
  Prior service cost               ---      ---         62      71
  Net actuarial gain              (328)     158     (1,579)     63
                                ------   ------     ------  ------
Accrued benefit cost
  recognized in the
  consolidated balance
  sheets                        $ (483)  $ (560)    $  224  $   47
                                ======   ======     ======  ======
==================================================================
</TABLE>


     The assumption used in determining the actuarial present value of the
benefit obligations for the F&M Plans follow:

<TABLE>
<CAPTION>
- - ----------------------------------------------------------------------------------
                                 F&M Bank                      BancSecurity
                             Waushara County                   Corporation
                       --------------------------      ---------------------------
                          1999     1998   1997           1999      1998   1997
                       --------------------------      ---------------------------
<S>                       <C>      <C>    <C>            <C>       <C>    <C>
WEIGHTED-AVERAGE
  ASSUMPTIONS
  DECEMBER 31
Discount rate              8.00%   6.00%   6.00%         8.00%     5.90%  7.30%
Rate of compensation
  increase                 0.00%   0.00%   0.00%         0.00%     0.00%  0.00%
Expected return on
  plan assets              9.75    7.50    7.50          9.75      8.50   8.50

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


     Plan assets of these defined benefit pension plans consisted primarily of
mutual and money market funds, and listed bonds and equity securities. Citizens
plans to transfer the assets of these plans into a new cash balance defined
benefit plan to be established, effective January 1, 2000, for the employees of
F&M.
     The components of net periodic benefit cost charged to operations each year
for all plans follow:

<TABLE>
<CAPTION>
- - --------------------------------------------------------------------
                                       Year Ended December 31,
                                    --------------------------------
(in thousands)                         1999      1998       1997
- - --------------------------------------------------------------------
<S>                                   <C>      <C>         <C>
DEFINED BENEFIT PENSION PLANS
  Service cost                        $2,304   $ 2,377     $ 2,351
  Interest cost                        4,018     3,894       3,598
  Expected return on plan assets      (5,554)   (4,894)     (4,458)
  Amortization of unrecognized:
  Net transition asset                  (218)     (174)       (174)
  Prior service cost                     114       117         135
  Net actuarial gain                    (464)     (195)       (212)
                                      ------   -------     -------
    Net pension cost                     200     1,125       1,240
                                      ------   -------     -------
POSTRETIREMENT BENEFIT PLANS
  Service cost                            12        16          40
  Interest cost                          919       936         995
  Amortization of unrecognized:
  Prior service cost                    (460)     (460)       (438)
  Net actuarial gain                     (57)      (62)       (127)
                                      ------   -------     -------
    Net postretirement benefit cost      414       430         470
DEFINED CONTRIBUTION RETIREMENT
AND 401(K) PLANS
  Employer contributions               4,662     3,894       3,563
                                      ------   -------     -------
  Total periodic benefit cost         $5,276   $ 5,449     $ 5,273
                                      ======   =======     =======
====================================================================
</TABLE>

                                    Page 33
<PAGE>   36



     In the third quarter of 1999, Citizens adopted an alternative
market-related value methodology for pension plan assets to better reflect plan
asset earnings, a component of pension expense, in 1999 and future years. The
change reduced 1999 annual pension expense by approximately $556,000.
     Prior service pension costs are amortized on a straight-line basis over the
average remaining service period of employees expected to receive benefits under
the plans. For the postretirement benefit plans, Citizens assumed a 6%
weighted-average annual rate of increase in the per capita cost of covered
health care benefits (the health care cost trend rate) for 1999, decreasing 1%
annually to 5% by the year 2000, after which the costs would remain level. This
assumption can have a significant effect on the amounts reported. A
one-percentage-point change in assumed health care cost trend rates would have
the following effects:

<TABLE>
<CAPTION>
- - -------------------------------------------------------------
                               One Percentage  One Percentage
(in thousands)                 Point Increase  Point Decrease
- - -------------------------------------------------------------
<S>                              <C>           <C>
Effect on total of service and
  interest cost components       $    88       $    (76)
Effect on the postretirement
  benefit obligation               1,227         (1,127)
- - ------------------------------------------------------------
</TABLE>


     DEFINED CONTRIBUTION SAVINGS AND RETIREMENT PLANS: Substantially all
employees are eligible to contribute a portion of their pre-tax salary to a
defined contribution 401(k) savings plan. Under the plan, employee contributions
are partially matched by Citizens. The employer matching contribution is 75
percent of the first 6% (100 percent of the first 3% plus 50 percent of the next
3%) of each eligible employee's qualifying salary contributed to the plan. In
addition, one third of these matching contributions are used to fund a
postretirement medical savings account established within the plan for each
contributing employee. Plan assets from a defined contribution 401(k) savings
plan and an Employee Stock Ownership Plan ("ESOP") maintained by F&M and one of
its subsidiaries prior to the merger are expected to be transferred into
Citizens' plan during 2000. Employer matching contributions for the F&M 401(k)
savings plan were based on the company's return on equity and incorporated a
discretionary profit-sharing contribution. The assets of the ESOP plan are
frozen and include 181,411 shares of Citizens' stock at year-end 1999.


NOTE 12. INCOME TAXES
     Deferred income taxes reflect the net tax effects of temporary differences
between the carrying amounts of assets and liabilities for financial reporting
purposes and the amounts used for income tax purposes.

Significant components of Citizens' deferred tax assets and liabilities as of
December 31, 1999 and 1998 follow:

<TABLE>
<CAPTION>
- - ------------------------------------------------------------
(in thousands)                              1999      1998
- - ------------------------------------------------------------
<S>                                        <C>       <C>
Deferred tax assets:
   Allowance for loan losses               $27,771   $24,933
   Accrued merger related charges            6,321       ---
   Accrued postemployment
     benefits other than pensions            5,589     5,601
   Net unrealized losses on securities       9,412       ---
   Other deferred tax assets                 6,465     7,201
                                           -------   -------
     Deferred tax assets                    55,558    37,735
                                           -------   -------
Deferred tax liabilities:
   Tax over book depreciation                3,893     4,037
   Acquisition premium on loans              3,684     3,753
   Net unrealized gains on securities          ---     4,501
   Other deferred tax liabilities            3,448     2,777
                                           -------   -------
     Deferred tax liabilities               11,025    15,068
                                           -------   -------
     Net deferred tax assets               $44,533   $22,667
                                           =======   =======
============================================================
</TABLE>


     Income tax expense consists of the following:

<TABLE>
<CAPTION>
- - ------------------------------------------------------------

                                Year Ended December 31,
(in thousands)                 1999       1998      1997
- - ------------------------------------------------------------
<S>                           <C>        <C>       <C>
Current tax expense:
  Federal                     $ 33,870   $ 35,021  $ 28,559
  State                          2,072      2,426     2,319
                              --------   --------  --------
Total current tax expense       35,942     37,447    30,878
Deferred tax expense (credit)   (7,953)     1,836    (5,681)
                              --------   --------  --------
Total income tax expense      $ 27,989   $ 39,283  $ 25,197
                              ========   ========  ========
============================================================
</TABLE>


     A reconciliation of income tax expense to the amount computed by applying
the federal statutory rate of 35% to income before income taxes follows:

<TABLE>
<CAPTION>
- - ------------------------------------------------------------
                                Year Ended December 31,
(in thousands)                 1999        1998      1997
- - ------------------------------------------------------------
<S>                           <C>        <C>       <C>
Tax at federal statutory rate
    applied to income before
    income taxes              $ 31,494   $ 45,348  $ 28,031
Increase (decrease) in taxes
    resulting from:
      Tax-exempt interest       (7,230)    (6,703)   (6,545)
      Other                      3,725        638     3,711
                              --------   --------  --------
    Total income tax expense  $ 27,989   $ 39,283  $ 25,197
                              ========   ========  ========
============================================================
</TABLE>

                                    Page 34
<PAGE>   37

NOTE 13. EARNINGS PER SHARE
     A reconciliation of the numerators and denominators of the basic and
diluted earnings per share computations follows:

<TABLE>
<CAPTION>
- - -----------------------------------------------------------------------------

                                             Year Ended December 31,
(in thousands)                         1999          1998           1997
- - -----------------------------------------------------------------------------
<S>                                   <C>          <C>             <C>
Numerator:
  Numerator for basic and
    dilutive earnings per share --
    net income available to
    common shareholders               $ 61,994     $ 90,282        $ 54,891
                                      ========     ========        ========
Denominator:
  Denominator for basic
    earnings per share --
    weighted average shares             48,169       48,427          47,043
  Effect of dilutive
    securities - potential
    conversion of employee
    stock options                          448          658             609
                                      --------     --------        --------
  Denominator for diluted
    earnings per share --
    adjusted weighted-average
    shares and assumed                  48,617       49,085          47,652
                                      ========     ========        ========
Basic earnings per share              $   1.29     $   1.86        $   1.17
                                      ========     ========        ========
Diluted earnings per share            $   1.28     $   1.84        $   1.15
                                      ========     ========        ========
=============================================================================
</TABLE>


     All employee stock options were dilutive except for options granted in 1998
and 1999. See Note 14 for additional disclosures regarding employee stock
options.

NOTE 14. SHAREHOLDERS' EQUITY
     SHAREHOLDERS' RIGHTS PLAN: Citizens' Shareholders' Rights Plan is designed
to provide certain assurances that all shareholders are treated fairly in
connection with certain types of business transactions involving an attempt to
acquire controlling interest in Citizens. Under the plan, one right attaches to
each outstanding share of common stock and, adjusted for stock splits,
represents the right to purchase from Citizens one-third of 1/100th of a share
of a new series of preferred stock at a price of $25.00. The rights become
exercisable only if a person or group without Board approval acquires or
announces an intention to acquire 15% or more of Citizens' outstanding common
stock. Upon the occurrence of such an event, each right entitles the holder
(other than the acquirer) to purchase one share of common stock of Citizens or
the surviving company at 50% of the market price. These rights are redeemable by
the Board for one-third of $0.01 per right and expire July 20, 2000. The rights
will cause substantial dilution to a person or entity attempting to acquire
Citizens without conditioning the offer on the rights being redeemed by the
Board.
     STOCK REPURCHASE PLANS: Citizens initiated a stock repurchase program in
May 1998. This program authorizes Citizens to purchase up to 600,000 shares for
treasury in satisfaction of its obligation to issue shares upon the exercise of
stock options. A second program to purchase up to 1,400,000 shares was initiated
in January 1999 and completed in 1999. During the year, a total of 1,757,900
shares were purchased under both plans at an average price of $30.61. As of
December 31, 1999, there were 32,800 shares to be purchased under the May 1998
program. The treasury shares have been accorded the accounting treatment as if
retired.
     STOCK OPTION PLAN: Citizens' stock option plan, as amended and restated in
April 1997, authorizes the granting of incentive and nonqualified stock options,
tandem stock appreciation rights, restricted stock and performance share grants
to key employees. Aggregate grants under the plan may not exceed 3,000,000
shares within any six-year period and are limited annually to 3% of Citizens'
outstanding common stock as of the first day of the year, plus any unused shares
that first become available for grants in the prior year. The exercise price of
all options granted under the plan is equal to the market price of Citizens'
stock on the date of grant.
     During 1997, replacement options were granted under certain circumstances
upon exercise of a nonqualified stock option by payment of the exercise price
with shares of Citizens' common stock. A replacement option provided the
employee with a new option to purchase the number of shares surrendered at an
option price equal to the fair market value of Citizens' common stock on the
date the underlying nonqualified stock option was exercised. No replacement
options have been granted since May 1997. In 1997, shares totaling 167,705 were
surrendered by employees for payment to Citizens for stock option exercises for
which an equal number of replacement options were granted.
     Options may be granted until January 16, 2002 and expire ten years from the
date of grant. Options granted since April 1992 are exercisable subject to a
predetermined vesting schedule based on achievement of certain return on average
asset or earnings per share targets. At December 31, 1999, options outstanding
under the plan totaled 2,034,116 shares of which 472,182 shares were not
exercisable subject to future achievement of the performance targets. These
options become exercisable after five years if the performance targets are not
met. Canceled or expired options become available for future grants.
     Citizens also maintains a stock option plan for its directors. Under this
plan, each non-employee director of Citizens immediately following an annual
meeting of shareholders receives an automatic option grant of 1,500 shares.
Options outstanding under the plan totaled 94,500 shares as of December 31,
1999. Other options of Citizens include those granted by F&M to its directors
and key employees that were converted into Citizens' options at the time of the
merger. At year-end 1999, 137,881 shares of these options were outstanding.

                                    Page 35
<PAGE>   38


       Citizens has elected to follow Accounting Principles Board Opinion No.
25, "Accounting for Stock issued to Employees" ("APB 25") and related
Interpretations in accounting for its employee stock options as permitted by
Financial Accounting Standards Board Statement No. 123, "Accounting for
Stock-Based Compensation." Under APB 25, no compensation expense is recognized
by Citizens because the exercise price of the stock options equals the market
price of the underlying stock on the date of grant.
       Statement 123 requires certain pro forma disclosures regarding net income
and earnings per share as if Citizens had accounted for its stock options under
the fair value method of that statement. The following table provides these
disclosures along with significant assumptions used to estimate the fair value
of these options:

<TABLE>
<CAPTION>
- - ------------------------------------------------------------------
                                       1999     1998      1997
- - ------------------------------------------------------------------
<S>                                <C>      <C>       <C>
Pro forma amounts:
  Net income (in thousands)         $60,590  $89,257     $53,955
  Net income per share:
    Basic                              1.26     1.84        1.15
    Diluted                            1.25     1.82        1.13
Assumptions:
  Dividend yield                       3.0%     3.0%        3.5%
  Expected volatility                 19.5%    18.7%       17.0%
  Risk-free interest rate             5.59%    5.72%  5.46-6.57%
  Expected lives                      5 yrs.   5 yrs.  1 - 5 yrs.
==================================================================
</TABLE>



       A summary of stock option transactions under the plans for 1999, 1998 and
1997 follows:

- - --------------------------------------------------------------------------------
<TABLE>
<CAPTION>

                                                              Options                              Option Price
                                                   ------------------------------       -------------------------------
                                                     Available                              Per Share
                                                     for Grant       Outstanding              Range            Average
- - -----------------------------------------------------------------------------------------------------------------------
<S>                                                  <C>             <C>                    <C>                <C>
January 1, 1997                                        764,955         1,963,190          $5.400-20.583         $14.85
  Authorized                                           251,401               ---                    ---            ---
  Granted                                             (616,527)          616,527          18.710-22.000          21.53
  Exercised                                                ---          (503,373)          5.400-20.753          14.84
  Canceled                                              13,938           (13,938)         17.333-19.583          18.70
                                                     ---------         ---------          -------------         ------
December 31, 1997                                      413,767         2,062,406           5.400-22.000          16.82
  Authorized                                           810,872               ---                    ---            ---
  Granted                                             (388,329)          388,329          27.510-36.313          34.77
  Exercised                                                ---          (313,182)          5.400-21.833          14.91
  Canceled                                               9,092            (9,092)         17.333-35.625          27.79
                                                     ---------         ---------          -------------         ------
December 31, 1998                                      845,402         2,128,461           5.400-36.313          20.33
  AUTHORIZED                                           201,237               ---                    ---            ---
  GRANTED                                             (455,229)          455,229          22.930-32.594          29.99
  EXERCISED                                                ---          (287,906)          5.400-27.510          11.70
  CANCELED                                              29,287           (29,287)          24.85-35.625          31.88
                                                     ---------         ---------          -------------         ------
DECEMBER 31, 1999                                      620,697         2,266,497          $5.400-36.313         $23.22
                                                     =========         =========          =============         ======
</TABLE>

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




       The following table summarizes information on stock options outstanding
as of December 31, 1999:

- - --------------------------------------------------------------------------------
<TABLE>
<CAPTION>

                                           Options Outstanding                            Options Exercisable
                           -----------------------------------------------------      -----------------------------
                                             Weighted-             Weighted-                           Weighted-
                                              Average           Average Exercise                        Average
     Range                    Amount       Remaining Life            Price               Amount      Exercise Price
- - -------------------------------------------------------------------------------------------------------------------
 <S>                          <C>           <C>                  <C>                  <C>             <C>
 $ 5.40 - 15.00                  260,922         2.0 years         $ 10.13               260,922        $ 10.13
  15.00 - 21.00                  699,381         5.4                 18.76               699,381          18.76
  21.00 - 36.32                1,306,194         7.8                 28.22               834,012          25.99
                               ---------                                               ---------
 $ 5.40 - 36.32                2,266,497         6.4                 23.22             1,794,315          20.87
                               =========                                               =========
===================================================================================================================
</TABLE>

                                    Page 36
<PAGE>   39

NOTE 15. COMMITMENTS AND CONTINGENT
           LIABILITIES
       The Consolidated Financial Statements do not reflect various loan
commitments (unfunded loans and unused lines of credit) and letters of credit
originated in the normal course of business. Loan commitments are made to
accommodate the financial needs of clients. Generally, new loan commitments do
not extend beyond 90 days and unused lines of credit are reviewed at least
annually. Letters of credit guarantee future payment of client financial
obligations to third parties. They are issued primarily for services provided or
to facilitate the shipment of goods, and generally expire within one year. Both
arrangements have essentially the same level of credit risk as that associated
with extending loans to clients and are subject to Citizens' normal credit
policies. Inasmuch as these arrangements generally have fixed expiration dates
or other termination clauses, most expire unfunded and do not necessarily
represent future liquidity requirements. Collateral is obtained based on
management's assessment of the client and may include receivables, inventories,
real property and equipment.
       Amounts available to clients under loan commitments and letters of credit
follow:

<TABLE>
<CAPTION>
- - ---------------------------------------------------------------------
                                                  December 31,
(in thousands)                               1999             1998
- - ---------------------------------------------------------------------
<S>                                     <C>              <C>
LOAN COMMITMENTS
  AND LETTERS OF CREDIT:
Commitments to extend credit            $ 1,665,872      $ 1,661,726
Standby letters of credit                    36,405           28,522
Commercial letters of credit                 77,295           49,651

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

       Loan commitments outstanding include $240.1 million of credit card
commitments and $211.1 million of home equity credit lines in 1999. The same
amounts for 1998 were $238.5 million and $208.4 million, respectively.
       Citizens and its subsidiaries are parties to litigation arising in the
ordinary course of business.  Management believes that the aggregate liability,
if any, resulting from these proceedings would not have a material effect on
Citizens' consolidated financial position.

NOTE 16. FAIR VALUES OF FINANCIAL INSTRUMENTS
       The following disclosure of the estimated fair value of financial
instruments is made in accordance with the requirements of Financial Accounting
Standards Board Statement No. 107, "Disclosure About Fair Value of Financial
Instruments" ("SFAS 107"). Where quoted market prices are not available, as is
the case for a significant portion of Citizens' financial instruments, the fair
values are based on estimates using present value or other valuation techniques.
These techniques are significantly affected by the assumptions used, including
the discount rate and estimates of future cash flows. Accordingly, the derived
fair value estimates presented herein cannot be substantiated by comparison to
independent markets and are not necessarily indicative of the amounts Citizens
could realize in a current market exchange.
       In addition, the fair value estimates are based on existing on- and
off-balance sheet financial instruments without attempting to estimate the value
of anticipated future business and the value of assets and liabilities that are
not considered financial instruments. For example, Citizens has a substantial
trust department that contributes net fee income annually. The trust department
is not considered a financial instrument and its value has not been incorporated
into the fair value estimates. Other significant assets and liabilities that are
not considered financial assets or liabilities include Citizens' brokerage
network, net deferred tax asset, premises and equipment, goodwill and deposit
based intangibles. In addition, tax ramifications related to the recognition of
unrealized gains and losses such as those within the investment securities
portfolio can also have a significant effect on estimated fair values and have
not been considered in the estimates. Accordingly, the aggregate fair value
amounts do not represent the underlying value of Citizens.


                                     Page 37
<PAGE>   40




       The estimated fair values of Citizens' financial instruments follow:
<TABLE>
<CAPTION>

                                                                          DECEMBER 31, 1999             December 31, 1998
                                                                       ------------------------      -----------------------

                                                                         CARRYING   ESTIMATED          Carrying   Estimated
(in millions)                                                             AMOUNT    FAIR VALUE          Amount   Fair Value
- - ----------------------------------------------------------------------------------------------------------------------------
<S>                                                                      <C>        <C>                <C>       <C>
Financial assets:
     Cash and money market investments                                   $  339.7     $  339.7          $ 330.5     $ 326.2
     Investment securities                                                1,372.2      1,372.2          1,123.5     1,131.8
     Net loans                                                            5,841.1      5,845.3          5,195.0     5,359.5
Financial liabilities:
     Deposits                                                             6,129.0      6,112.7          5,772.8     5,789.1
     Short-term borrowings                                                  937.3        937.6            185.2       185.2
     Long-term debt                                                         127.1        122.1            226.2       226.1
Off-balance sheet financial instrument liabilities:
     Loan commitments                                                         ---          2.3              ---         2.4
     Standby and commercial letters of credit                                 ---          0.6              ---         0.4

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


       The various methods and assumptions used by Citizens in estimating fair
value for its financial instruments are set forth below:
       CASH AND MONEY MARKET INVESTMENTS: The carrying amounts reported in the
balance sheet for cash and money market investments approximate those assets'
fair values because they mature within six months and do not present
unanticipated credit concerns.
       INVESTMENT SECURITIES: For investment securities classified as available-
for-sale-or trading, the carrying value approximates those assets' fair values.
SFAS 115 requires securities carried in the available-for-sale or trading
categories to be carried at fair value. See Note 4. The fair values are based on
quoted market prices, where available. If quoted market prices are not
available, fair values are based on quoted market prices of comparable
instruments. The carrying value for investment securities classified as held-to-
maturity reflects amortized cost. Fair values for these securities were obtained
from quoted market prices of these or comparable instruments, similar to
available-for-sale and trading securities.
       LOANS RECEIVABLE: Fair values are estimated for portfolios of loans with
similar financial characteristics. Loans are segregated by type such as
commercial, commercial real estate, residential mortgage, credit card, and other
consumer. Each loan category is further segmented into fixed and variable-rate
interest types and for certain categories by performing and nonperforming. For
performing variable-rate loans that reprice frequently (within twelve months)
and with no significant change in credit risk, fair values are based on carrying
values. Similarly, for credit card loans with no significant credit concerns and
average interest rates approximating current market origination rates, the
carrying amount is a reasonable estimate of fair value. Fair values of other
loans (e.g., fixed-rate commercial, commercial real estate, residential mortgage
and other consumer loans) are estimated by discounting the future cash flows
using interest rates currently being offered by Citizens for loans with similar
terms and remaining maturities ("new loan rates"). Management believes the risk
factor embedded in the new loan rates adequately represents the credit risk
within the portfolios. Fair values for nonperforming loans are estimated after
giving consideration to credit risk and estimated cash flows and discount rates
based on available market and specific borrower information. The carrying amount
of accrued interest for all loan types approximates its fair value.
       DEPOSIT LIABILITIES: Under SFAS 107, the fair value of demand deposits
(e.g., interest and noninterest checking, passbook savings and certain types of
money market accounts) are, by definition, equal to the amount payable on demand
at the reporting date (i.e., their carrying amounts). Fair values for
certificates of deposit are based on the discounted value of contractual cash
flows. The discount rate is estimated using the rates currently offered for
certificates of similar remaining maturities.
       SHORT-TERM BORROWINGS: The carrying amounts of federal funds purchased,
securities sold under agreement to repurchase and other short-term borrowings
approximate their fair values.
       LONG-TERM DEBT: The carrying value of Citizens' variable-rate long-term
debt approximates its fair value. The fair value of fixed-rate long-term debt is
estimated using discounted cash flow analyses, based on Citizens' current
incremental borrowing rates for similar types of borrowing arrangements.
       LOAN COMMITMENTS AND LETTERS OF CREDIT: The fair value of loan
commitments and letter of credit guarantees is based on fees currently charged
to enter into similar agreements, taking into account the remaining terms of the
agreements and the counterparties' credit standing.

                                    Page 38
<PAGE>   41

NOTE 17. LINES OF BUSINESS
       The financial performance of Citizens is monitored by an internal
profitability measurement system, which provides line of business results and
key performance measures. The profitability measurement system is based on
internal management methodologies designed to produce consistent results and
reflect the underlying economics of the businesses. The development and
application of these methodologies is a dynamic process. Accordingly, these
measurement tools and assumptions may be revised periodically to reflect
methodological, product, and/or management organizational changes. Further,
these policies measure financial results that support the strategic objectives
and internal organizational structure of Citizens. Consequently, the information
presented is not necessarily comparable with similar information for other
institutions.
       Citizens is managed along the following business lines: Commercial
Banking, Retail Banking, Financial Services, F&M and all other.
       COMMERCIAL BANKING: Commercial Banking provides a full range of credit
and related financial services to middle market corporate, government and
leasing clients. Products and services offered include commercial loans,
commercial mortgages, letters of credit, deposit accounts, cash management and
international trade services.
       RETAIL BANKING: Retail Banking includes consumer lending and deposit
gathering, electronic banking, residential mortgage loan origination and
servicing, and small business banking. This line of business offers a variety of
retail financial products and services including deposit accounts, direct and
indirect installment loans, small business loans, debit and credit cards, home
equity lines of credit, residential mortgage loans and ATM network services.
       FINANCIAL SERVICES: Financial Services provides commercial and retail
clients with private banking, trust and investment, retirement plan, and
brokerage and insurance services. Private banking focuses on high net-worth
customers and offers a broad array of asset management, estate settlement and
administration, deposit and credit products. Trust and investment includes
personal trust and planning services, investment management services, estate
settlement, administration and advises the Golden Oak family of mutual funds.
Retirement plan services focus on investment management and fiduciary activities
with special emphasis on 401(k) plans. The brokerage and insurance businesses
deliver Citizens' retail mutual funds, other securities, variable and fixed
annuities, personal disability and life insurance products and discounted
brokerage services.
       F&M: F&M provides a full range of consumer and commercial banking
services to individuals, and commercial and agricultural businesses, in
Wisconsin, Iowa and Minnesota through a network of subsidiary banks. Products
and services offered include deposit accounts; commercial, commercial mortgage,
agricultural, residential mortgage and consumer loans; financial planning and
trust; brokerage, insurance, ATM, credit card and cash management services. F&M
will continue to be managed as a separate business unit until all systems are
converted and operations have been realigned.
       ALL OTHER: All other includes activities that are not directly
attributable to one of the four major lines of business. Included in this
category is the parent company, Citizens' securities portfolio and asset
liability management activities, inter-company eliminations, and the economic
impact of certain assets, capital and support functions not specifically
identifiable with the three primary lines of business.
       The accounting policies on the individual business units are the same as
those of Citizens described in Note 1 to the Consolidated Financial Statements.
Funds transfer pricing is used in the determination of net interest income by
assigning a standard cost for funds used or credit for funds provided to assets
and liabilities within each business unit. Assets and liabilities are
match-funded based on their maturity, prepayment and/or repricing
characteristics. Noninterest income and expenses directly attributable to a line
of business are assigned to that business. Expenses for centrally provided
services are allocated to the business lines as follows: product processing and
technology expenditures are allocated based on standard unit costs applied to
actual volume measurements; corporate overhead is allocated based on the ratio
of a line of business' noninterest expenses to total noninterest expenses
incurred by all business lines. The provision for loan losses was allocated in
an amount based primarily upon the actual net charge-offs of each respective
line of business, adjusted for loan growth and changes in risk profile. Selected
segment information is included in the following table.
       Certain amounts in prior year have been restated to reflect the current
business unit structure and cost allocation methodology. This resulted in a
transfer of certain deposits and related interest expense and funds transfer
credits from retail banking to commercial banking for prior year presentation.
Additionally, the allocation method for information systems costs was revised in
1999 resulting in additional cost allocation to retail banking for all years
presented. The effect of these changes was an increase in commercial banking
profitability and all other and a corresponding decrease in profitability in
retail banking for the periods presented.

                                    Page 39
<PAGE>   42

<TABLE>
<CAPTION>
- - ------------------------------------------------------------------------------------------------------------------------------------
LINE OF BUSINESS INFORMATION                                                                                    Special
                                                                                                                Charge
                                                                                                      Net         And
                                          Commercial    Retail   Financial                         Operating    Related
(in thousands)                              Banking    Banking   Services     F&M         Other      Income      Items       Total
- - ------------------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>        <C>        <C>        <C>         <C>         <C>        <C>         <C>
EARNINGS SUMMARY - 1999

Net interest income (taxable equivalent)  $  73,845  $ 116,680  $   1,357  $ 110,718   $  20,095   $ 322,695  $      --   $ 322,695
Provision for loan losses                     1,509     14,455         --      2,975      (1,064)     17,875      6,800      24,675
                                          ---------  ---------  ---------  ---------   ---------   ---------  ---------   ---------
    Net interest income after provision      72,336    102,225      1,357    107,743      21,159     304,820     (6,800)    298,020
Noninterest income                            9,709     28,469     24,177     15,994       6,391      84,740     (3,596)     81,144
Noninterest expense                          37,991     96,533     18,159     63,002      21,093     236,778     40,198     276,976
                                          ---------  ---------  ---------  ---------   ---------   ---------  ---------   ---------
    Income (loss) before income taxes        44,054     34,161      7,375     60,735       6,457     152,782    (50,594)    102,188
Income tax expense (taxable equivalent)      17,762     11,956      2,581     22,785         544      55,628    (15,434)     40,194
                                          ---------  ---------  ---------  ---------   ---------   ---------  ---------   ---------
    Net income (loss)                     $  26,292  $  22,205  $   4,794  $  37,950   $   5,913   $  97,154  $ (35,160)  $  61,994
Allocation of special charge and
  related items                                  --         --         --    (26,748)     (8,412)                35,160          --
                                          ---------  ---------  ---------  ---------   ---------              ---------   ---------
    Net income (loss)                     $  26,292  $  22,205  $   4,794  $  11,202   $  (2,499)             $      --   $  61,994
                                          =========  =========  =========  =========   =========              =========   =========

AVERAGE ASSETS (IN MILLIONS)              $   1,655  $   2,138  $      16  $   2,602   $     931                          $   7,342
                                          =========  =========  =========  =========   =========                          =========

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

EARNINGS SUMMARY - 1998

Net interest income (taxable equivalent)  $  69,163  $ 115,735  $   1,844  $ 100,701  $  17,109   $ 304,552              $ 304,552
Provision for loan losses                     4,780      9,099         --      2,438        211      16,528                 16,528
                                          ---------  ---------  ---------  ---------  ---------   ---------              ---------
    Net interest income after provision      64,383    106,636      1,844     98,263     16,898     288,024                288,024
Noninterest income                            8,588     25,744     21,090     15,016        830      71,268                 71,268
Noninterest expense                          37,563     91,555     18,071     59,928     11,102     218,219                218,219
                                          ---------  ---------  ---------  ---------  ---------   ---------              ---------
    Income before income taxes               35,408     40,825      4,863     53,351      6,626     141,073                141,073
Income tax expense (taxable equivalent)      12,392     14,289      1,702     19,854      2,554      50,791                 50,791
                                          ---------  ---------  ---------  ---------  ---------   ---------              ---------
    Net income                            $  23,016  $  26,536  $   3,161  $  33,497  $   4,072   $  90,282              $  90,282
                                          =========  =========  =========  =========  =========   =========              =========

AVERAGE ASSETS (IN MILLIONS)              $   1,445  $   2,112  $      21  $   2,343  $     872                          $   6,793
                                          =========  =========  =========  =========   ========                          =========

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

EARNINGS SUMMARY - 1997

Net interest income (taxable equivalent)  $  62,785  $ 114,131  $   1,492  $  88,031  $  19,572   $ 286,011  $      --   $ 286,011
Provision for loan losses                     3,340     11,435       --        5,179        557      20,511         --      20,511
                                          ---------  ---------  ---------  ---------  ---------   ---------  ---------   ---------
   Net interest income after provision       59,445    102,696      1,492     82,852     19,015     265,500         --     265,500
Noninterest income                            8,108     21,274     17,486     11,703       (174)     58,397         --      58,397
Noninterest expense                          35,215     87,675     16,877     55,494     13,660     208,921     23,734     232,655
                                          ---------  ---------  ---------  ---------  ---------   ---------  ---------   ---------
   Income (loss) before income taxes         32,338     36,295      2,101     39,061      5,181     114,976    (23,734)     91,242
Income tax expense (taxable equivalent)      11,319     12,703        735     15,678      2,387      42,822     (6,471)     36,351
                                          ---------  ---------  ---------  ---------  ---------   ---------  ---------   ---------
   Net income (loss)                      $  21,019  $  23,592  $   1,366  $  23,383  $   2,794   $  72,154  $ (17,263)  $  54,891
Allocation of special charge                     --         --         --         --    (17,263)                17,263          --
                                          ---------  ---------  ---------  ---------  ---------              ---------   ---------
   Net income (loss)                      $  21,019  $  23,592  $   1,366  $  23,383  $ (14,469)             $      --   $  54,891
                                          =========  =========  =========  =========  =========              =========   =========

AVERAGE ASSETS (IN MILLIONS)              $   1,310  $   2,138  $      18  $   2,068  $     906                          $   6,440
                                          =========  =========  =========  =========  =========                          =========

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

                                    Page 40

<PAGE>   43


NOTE 18. REGULATORY MATTERS
       The Federal Reserve Bank requires Citizens' banking subsidiaries to
maintain certain noninterest-bearing deposits. These reserve balances vary
depending upon the level of client deposits in the subsidiary banks. During 1999
and 1998, the average reserve balances were $45.7 million and $40.3 million,
respectively.
       The bank subsidiaries are also subject to limitations under banking laws
on extensions of credit to members of the affiliate group and on dividends that
can be paid to Citizens. Generally extensions of credit are limited to 10% to
any one affiliate and 20% in aggregate to all affiliates of a subsidiary bank's
capital and surplus (net assets) as defined. Unless prior regulatory approval is
obtained, dividends declared in any calendar year may not exceed the retained
net profit, as defined, of that year plus the retained net profit of the
preceding two years. At January 1, 2000, the bank subsidiaries could distribute
to Citizens approximately $31.7 million in dividends without regulatory
approval. Their 2000 net income will also become available for such dividends.
       Citizens and its banking subsidiaries are subject to various regulatory
capital requirements administered by the federal banking agencies. Failure to
meet minimum capital requirements can initiate certain mandatory and possibly
additional discretionary actions by regulators that, if undertaken, could have a
direct material effect on the financial statements. Under capital adequacy
guidelines and the regulatory framework for prompt corrective action, specific
capital guidelines must be met that involve quantitative measures of the assets,
liabilities, and certain off-balance sheet items as calculated under regulatory
accounting practices. The capital amounts and classification are also subject to
qualitative judgments by the regulators about components, risk weightings, and
other factors.
       Quantitative measures established by regulation to ensure capital
adequacy require Citizens and its banking subsidiaries to maintain minimum
amounts and ratios (set forth in the table below) of total and Tier I capital to
risk-weighted assets (as defined in the regulations), and of Tier I capital to
average assets (as defined). Management believes, as of December 31, 1999, that
Citizens and its banking subsidiaries meet all capital adequacy requirements to
which it is subject.
       As of December 31, 1999, the most recent notification from the Federal
Reserve Board categorized Citizens and its banking subsidiaries as well
capitalized under the regulatory framework for prompt corrective action. To be
categorized as well capitalized Citizens and its banking subsidiaries must
maintain minimum total risk-based, Tier I risk-based, and Tier I leverage ratios
as set forth in the table. There are no conditions or events since that
notification that management believes would result in a change.

<TABLE>
<CAPTION>

- - ---------------------------------------------------------------------------------------------------------------------------

RISK BASED CAPITAL REQUIREMENTS                                                                   To Be Well Capitalized
                                                                        For Capital               Under Prompt Corrective
                                                 Actual               Adequacy Purposes              Action Provisions
                                          ---------------------     -----------------------    ----------------------------
(in thousands)                               Amount     Ratio          Amount       Ratio          Amount         Ratio
- - ---------------------------------------------------------------------------------------------------------------------------
<S>                                          <C>        <C>           <C>           <C>           <C>             <C>
CITIZENS BANKING CORPORATION
AS OF DECEMBER 31, 1999:
    Total Capital(1)                         $ 628,674   10.5 %       $ 480,229 >     8.0 %       $ 600,287  >     10.0 %
                                                                                -                            -
    Tier I Capital(1)                          553,621    9.2           240,115 >     4.0           360,172  >      6.0
                                                                                -                            -
    Tier I Leverage(2)                         553,621    7.2           307,021 >     4.0           383,776  >      5.0
                                                                                -                            -
As of December 31, 1998:
    Total Capital(1)                         $ 675,096   12.3 %       $ 440,497 >     8.0 %       $ 550,621  >     10.0 %
                                                                                -                            -
    Tier I Capital(1)                          606,341   11.0           220,248 >     4.0           330,372  >      6.0
                                                                                -                            -
    Tier I Leverage(2)                         606,341    8.9           271,061 >     4.0           338,827  >      5.0
                                                                                -                            -
CITIZENS BANK
AS OF DECEMBER 31, 1999:
    Total Capital(1)                         $ 390,956   10.1 %       $ 308,720 >     8.0 %       $ 385,900  >     10.0 %
                                                                                -                            -
    Tier I Capital(1)                          343,917    8.9           154,360 >     4.0           231,540  >      6.0
                                                                                -                            -
    Tier I Leverage(2)                         343,917    7.2           190,192 >     4.0           237,740  >      5.0
                                                                                -                            -
As of December 31, 1998:
    Total Capital(1)                         $ 404,822   11.7 %       $ 276,694 >     8.0 %       $ 345,867  >     10.0 %
                                                                                -                            -
    Tier I Capital(1)                          361,577   10.5           138,347 >     4.0           207,520  >      6.0
                                                                                -                            -
    Tier I Leverage(2)                         361,577    8.7           166,580 >     4.0           208,225  >      5.0
                                                                                -                            -
==========================================================================================================================
 (1)To risk weighted assets.
 (2)To quarterly average assets.
</TABLE>

                                    Page 41
<PAGE>   44
NOTE 19. CITIZENS BANKING CORPORATION (PARENT ONLY) STATEMENTS

- - --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
BALANCE SHEETS
CITIZENS BANKING CORPORATION (PARENT ONLY)
                                                                                                        December 31,
(in thousands)                                                                                       1999          1998
- - ---------------------------------------------------------------------------------------------------------------------------
<S>                                                                                               <C>           <C>
Assets
  Cash                                                                                            $      5      $      5
  Interest-bearing deposit with subsidiary bank                                                         --         4,500
  Money market investments                                                                           1,102         7,435
  Investment securities                                                                                132           139
  Investment in subsidiaries - principally banks                                                   672,041       679,203
  Goodwill - net                                                                                     1,857         2,653
  Other assets                                                                                       4,630         3,960
                                                                                                  --------      --------
    TOTAL ASSETS                                                                                  $679,767      $697,895
                                                                                                  ========      ========
LIABILITIES AND SHAREHOLDERS' EQUITY
  Short-term borrowings                                                                           $ 42,000      $     --
  Long-term debt                                                                                        --        13,000
  Other liabilities                                                                                  4,098         4,394
                                                                                                  --------      --------
    Total liabilities                                                                               46,098        17,394
  Shareholders' equity                                                                             633,669       680,501
                                                                                                  --------      --------
    TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY                                                    $679,767      $697,895
                                                                                                  ========      ========

===========================================================================================================================
- - ---------------------------------------------------------------------------------------------------------------------------
<CAPTION>
STATEMENTS OF INCOME
CITIZENS BANKING CORPORATION (PARENT ONLY)
                                                                                            Year Ended December 31,
(in thousands)                                                                         1999          1998           1997
- - ---------------------------------------------------------------------------------------------------------------------------
<S>                                                                                  <C>           <C>            <C>
INCOME
  Dividends from subsidiaries - principally banks                                    $54,686       $61,207        $30,467
  Interest from bank subsidiary                                                          193           159            657
  Service fees from bank subsidiaries                                                  9,668         9,221          9,467
  Equity security gain                                                                 5,693            --             --
  Other                                                                                  205           381            254
                                                                                     -------       -------        -------
    Total                                                                             70,445        70,968         40,845
                                                                                     -------       -------        -------
EXPENSES
  Interest                                                                             1,486         1,734          2,978
  Amortization of goodwill                                                               796           796            796
  Salaries and employee benefits                                                       9,780         9,524          9,731
  Service fees paid to bank subsidiaries                                               1,156         1,060          1,339
  Special charge                                                                       3,464            --             --
  Other noninterest expense                                                            1,474         1,528          1,723
                                                                                     -------       -------        -------
    Total                                                                             18,156        14,642         16,567
                                                                                     -------       -------        -------
Income before income taxes and equity in undistributed earnings of subsidiaries       52,289        56,326         24,278
Income tax benefit                                                                       846         2,476          2,662
Equity in undistributed earnings of subsidiaries                                       8,859        31,480         27,951
                                                                                     -------       -------        -------
NET INCOME                                                                           $61,994       $90,282        $54,891
                                                                                     =======       =======        =======

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

                                    Page 42
<PAGE>   45


- - --------------------------------------------------------------------------------
STATEMENTS OF CASH FLOWS
CITIZENS BANKING CORPORATION (PARENT ONLY)
<TABLE>
<CAPTION>
                                                                                            Year Ended December 31,
(in thousands)                                                                         1999          1998           1997
- - -----------------------------------------------------------------------------------------------------------------------------
<S>                                                                                 <C>            <C>            <C>
OPERATING ACTIVITIES
  Net income                                                                        $ 61,994       $ 90,282       $ 54,891
  Adjustments to reconcile net income to net cash
   provided by operating activities:
  Amortization of goodwill                                                               796            796            796
  Equity security gain                                                                (5,693)            --             --
  Accrued merger related charges                                                       1,669             --             --
  Equity in undistributed earnings of subsidiaries                                    (8,859)       (31,480)       (27,951)
  Other                                                                               (3,114)          (332)          (945)
                                                                                    --------       --------       --------
      Net cash provided by operating activities                                       46,793         59,266         26,791
                                                                                    --------       --------       --------
INVESTING ACTIVITIES
  Net decrease in interest-bearing deposit at subsidiary bank                          4,500          2,500         18,134
  Net (increase) decrease in money market investments                                  6,333         (3,459)         8,067
  Purchases of investment securities                                                  (5,996)           (44)            --
  Proceeds from sales and maturities of investment securities                          5,995             40             10
  Proceeds from sale of Magic Line, Inc. stock                                         5,693             --             --
                                                                                    --------       --------       --------
      Net cash provided (used) by investing activities                                16,525           (963)        26,211
                                                                                    --------       --------       --------
FINANCING ACTIVITIES
  Proceeds from short-term borrowings                                                 42,000             --             --
  Proceeds from issuance of long-term debt                                            22,000             --             --
  Principal reductions in long-term debt                                             (35,000)       (19,991)       (26,694)
  Cash dividends paid                                                                (41,801)       (35,563)       (28,270)
  Proceeds from stock options exercised                                                3,349          4,234          1,962
  Shares acquired for retirement                                                     (53,866)        (6,983)            --
                                                                                    --------       --------       --------
      Net cash used by financing activities                                          (63,318)       (58,303)       (53,002)
                                                                                    --------       --------       --------
  Net increase in cash                                                                    --             --             --
  Cash at beginning of year                                                                5              5              5
                                                                                    --------       --------       --------
  Cash at end of year                                                               $      5       $      5       $      5
                                                                                    ========       ========       ========

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

                                    Page 43
<PAGE>   46
REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

BOARD OF DIRECTORS CITIZENS BANKING CORPORATION

     We have audited the accompanying consolidated balance sheet of Citizens
Banking Corporation and subsidiaries as of December 31, 1999, and the related
consolidated statements of income, changes in shareholders' equity, and cash
flows for the year ended December 31, 1999. These financial statements are the
responsibility of the Corporation's management. Our responsibility is to express
an opinion on these financial statements based on our audit.

     We conducted our audit in accordance with auditing standards generally
accepted in the United States. Those standards require that we plan and perform
the audit to obtain reasonable assurance about whether the financial statements
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 audit provides a reasonable basis
for our opinion.

     In our opinion, the financial statements referred to above present fairly,
in all material respects, the consolidated financial position of Citizens
Banking Corporation and subsidiaries at December 31, 1999 and the consolidated
results of their operations and their cash flows for the year ended December 31,
1999, in conformity with accounting principles generally accepted in the United
States.

     We previously audited and reported on the consolidated balance sheet at
December 31, 1998 and the related consolidated statements of income, changes in
shareholders' equity, and cash flows of Citizens Banking Corporation and
subsidiaries for each of the two years in the period ended December 31, 1998
prior to their restatement for the 1999 pooling of interests as described in
Note 2. The contribution of Citizens Banking Corporation to total assets,
revenues and net income represented 65%, 65% and 63%, respectively of the 1998
restated totals and the contribution to revenues and net income represented 67%
and 57% of the 1997 restated totals, respectively. Financial statements of the
other pooled company included in the 1998 and 1997 restated consolidated
statements were audited and reported on separately by other auditors. We also
have audited, as to combination only, the accompanying consolidated balance
sheet as of December 31, 1998 and the related consolidated statements of income,
changes in shareholders' equity, and cash flows for each of the two years in the
period ended December 31, 1998, after restatement for the 1999 pooling of
interests, in our opinion, such consolidated financial statements have been
properly combined on the basis described in Note 2 to the consolidated financial
statements.

ERNST & YOUNG LLP
Detroit, Michigan
January 19, 2000

                                     Page 44

<PAGE>   47


REPORT OF WIPFLI ULLRICH BERTELSON LLP, INDEPENDENT AUDITORS



BOARD OF DIRECTORS F&M BANCORPORATION, INC.

     We have audited the accompanying consolidated balance sheets of F&M
Bancorporation, Inc. and Subsidiaries as of December 31, 1998, and the related
consolidated statements of income, stockholders' equity, and cash flows for each
of the two years in the period ended December 31, 1998. These financial
statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements 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 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 consolidated financial statements referred to in the
first paragraph present fairly, in all material respects, the financial position
of F&M Bancorporation, Inc. and Subsidiaries at December 31, 1998 and the
consolidated results of their operations and their cash flows for each of the
two years in the period ended December 31, 1998, in conformity with generally
accepted accounting principles.





WIPFLI ULRIC BERTELSON LLP
- - ---------------------------
Wipfli Ulric Bertelson LLP
Green Bay, Wisconsin
February 4, 1999


                                    Page 45
<PAGE>   48


     REPORT OF MANAGEMENT



MANAGEMENT'S RESPONSIBILITY FOR THE FINANCIAL STATEMENTS

     Management is responsible for the preparation of the consolidated financial
statements and all other financial information appearing in this Annual Report.
The Consolidated Financial Statements have been prepared in accordance with
generally accepted accounting principles.

SYSTEM OF INTERNAL CONTROLS

     The Corporation maintains a system of internal controls designed to provide
reasonable assurance that assets are safe-guarded and that the financial records
are reliable for preparing Consolidated Financial Statements. The selection and
training of qualified personnel and the establishment and communication of
accounting and administrative policies and procedures are elements of this
control system. The effectiveness of the internal control system is monitored by
a program of internal audit and by independent certified public accountants
("independent auditors").

     Management recognizes that the cost of a system of internal controls should
not exceed the benefits derived and that there are inherent limitations to be
considered in the potential effectiveness of any system. Management believes the
Corporation's system provides the appropriate balance between costs of controls
and the related benefits.

AUDIT COMMITTEE OF THE BOARD

     The Audit Committee of the Board of Directors, comprised entirely of
outside directors, recommends the independent auditors who are engaged upon
approval by the Board of Directors. The committee meets regularly with the
internal auditor and the independent auditors to review timing and scope of
audits and review audit reports. The internal auditor and the independent
auditors have free access to the Audit Committee.

INDEPENDENT AUDITORS

     The Consolidated Financial Statements in this Annual Report have been
audited by the Corporation's independent auditors, Ernst & Young LLP, for the
purpose of determining that the Consolidated Financial Statements are free of
material misstatement. Their audit considered the Corporation's internal control
structure to the extent necessary to determine the scope of their auditing
procedures.




John W. Ennest                            Robert J. Vitito
John W. Ennest                            Robert J. Vitito
Vice Chairman,                            President and Chief Executive Officer
Chief Financial Officer and Treasurer







                                    Page 46

<PAGE>   1



                                                                      Exhibit 21
                                                                     (Form 10-K)

                                 SUBSIDIARIES OF
                          CITIZENS BANKING CORPORATION


                                                              Jurisdiction or
                                                            Incorporation of
Subsidiaries (all wholly owned)                               Organization
- - -------------------------------                             -----------------
Citizens Bank Michigan
     Citizens Commercial Leasing Corporation                    Michigan
     CB Financial Services, Inc.                                Michigan
     Citizens Title Services, Inc.                              Michigan
     Citizens Bank Mortgage Corporation                         Michigan
Citizens Bank - Illinois, N.A                             National Association
F&M Bancorporation, Inc.                                        Wisconsin
     F&M Merger Corporation                                     Wisconsin
         F&M Bank - Cannon Valley                               Minnesota
         F&M Bank - Central*                                    Wisconsin
         F&M Bank - East Troy*                                  Minnesota
         F&M Bank - Elkhorn*                                    Wisconsin
         F&M Bank - Jefferson*                                  Wisconsin
         F&M Bank - Grant County*                               Wisconsin
         F&M Bank - Kiel*                                       Wisconsin
         F&M Bank - Lakeland*                                   Wisconsin
         F&M Bank - Landmark*                                   Wisconsin
         F&M Bank - Northeast*                                  Wisconsin
         F&M Bank - Prairie du Chien*                           Wisconsin
         F&M Bank - Superior*                                   Wisconsin
         F&M Bank - Winnebago County*                           Wisconsin
     BancSecurity Corporation                                     Iowa
         F&M Bank - Iowa Central                                  Iowa
              Security Bancservices, Inc.                         Iowa
     F&M Bank - Algoma*                                         Wisconsin
     F&M Bank - Appleton*                                       Wisconsin
     F&M Bank - Brodhead*                                       Wisconsin
     F&M Bank - Darlington, N.A.*                         National Association
     F&M Bank - Hilbert*                                        Wisconsin
     F&M Bank - Kaukauna*                                       Wisconsin
     F&M Bank - New London*                                     Wisconsin
     F&M Bank - Waushara County*                                Wisconsin

*  Each of these banks has a subsidiary organized and existing under the laws of
   the State of Nevada which holds and manages that bank's investments.





<PAGE>   1



                                                                      Exhibit 23
                                                                     (Form 10-K)


               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS



We consent to the incorporation by reference in (1)  the Registration Statement
(Form S-8 No. 33-47686 dated May 5, 1992) pertaining to the Citizens Banking
Corporation Second Amended Stock Option Plan; (2) the Registration Statement
(Form S-8 No. 33-61197 dated July 21, 1995) pertaining to the Citizens Banking
Corporation Stock Option Plan for Directors; (3) the Registration Statement
(Form S-8 No. 333-09455 dated August 2, 1996) pertaining to the Citizens Banking
Corporation Amended and Restated Section 401(k) Plan and (4) the Registration
Statement (Post Effective Amendment No. 1 to Form S-4 on Form S-8 No. 333-86569
dated December 22, 1999) pertaining to the F & M Bancorporation, Inc. stock
option plans, of our report dated January 19, 2000, with respect to the
consolidated financial statements of Citizens Banking Corporation included in
the annual report (Form 10-K) for the year ended December 31, 1999.


/s/ Ernst & Young LLP

Ernst & Young LLP

Detroit, Michigan
March 30, 2000




<PAGE>   1


                                                                    Exhibit 23.1
                                                                     (Form 10-K)


                      [WIPFLI ULLRICH BERTELSON LLP LOGO]





          CONSENT OF WIPFLI ULLRICH BERTELSON LLP, INDEPENDENT AUDITORS



We consent to the incorporation by reference in (1) the Registration Statement
(Form S-8 No. 33-47686 dated May 5, 1992) pertaining to the Citizens Banking
Corporation Second Amended Stock Option Plan; (2) the Registration Statement
(Form S-8 No. 33-61197 dated July 21, 1995) pertaining to the Citizens Banking
Corporation Stock Option Plan for Directors; (3) the Registration Statement
(Form S-8 No. 333-09455 dated August 2, 1996) pertaining to the Citizens Banking
Corporation Amended and Restated Section 401(k) Plan and (4) the Registration
Statement (Post Effective Amendment No. 1 to Form S-4 on Form S-8 No. 333-86569
dated December 22, 1999) pertaining to the F&M Bancorporation, Inc. stock option
plans, of our report dated February 4, 1999 with respect to the consolidated
financial statements of F&M Bancorporation, Inc. and Subsidiaries for the years
ended December 31, 1998 and 1997 included in the annual report (Form 10-K) of
Citizens Banking Corporation for the year ended December 31, 1999.


/s/ Wipfli Ullrich Bertelson LLP

Wipfli Ullrich Bertelson LLP

Green Bay, Wisconsin
March 27, 2000



<TABLE> <S> <C>

<ARTICLE> 9
<MULTIPLIER> 1,000

<S>                             <C>                     <C>
<PERIOD-TYPE>                   YEAR                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999             DEC-31-1999
<PERIOD-START>                             JAN-01-1999             OCT-01-1999
<PERIOD-END>                               DEC-31-1999             DEC-31-1999
<CASH>                                         250,745                 250,745
<INT-BEARING-DEPOSITS>                             755                     755
<FED-FUNDS-SOLD>                                63,048                  63,048
<TRADING-ASSETS>                                 2,444                   2,444
<INVESTMENTS-HELD-FOR-SALE>                  1,372,186               1,372,186
<INVESTMENTS-CARRYING>                               0                       0
<INVESTMENTS-MARKET>                            25,161                  25,161
<LOANS>                                      5,917,483               5,917,483
<ALLOWANCE>                                     76,397                  76,397
<TOTAL-ASSETS>                               7,899,357               7,899,357
<DEPOSITS>                                   6,128,998               6,128,998
<SHORT-TERM>                                   937,279                 937,279
<LIABILITIES-OTHER>                             72,307                  72,307
<LONG-TERM>                                    127,104                 127,104
                                0                       0
                                          0                       0
<COMMON>                                       226,972                 226,972
<OTHER-SE>                                     406,697                 406,697
<TOTAL-LIABILITIES-AND-EQUITY>               7,899,357               7,899,357
<INTEREST-LOAN>                                463,071                 122,522
<INTEREST-INVEST>                               76,232                  21,425
<INTEREST-OTHER>                                 3,104                     584
<INTEREST-TOTAL>                               542,407                 144,531
<INTEREST-DEPOSIT>                             196,871                  51,568
<INTEREST-EXPENSE>                             231,917                  63,391
<INTEREST-INCOME-NET>                          310,490                  81,140
<LOAN-LOSSES>                                   24,675                  11,422
<SECURITIES-GAINS>                             (3,052)                 (3,584)
<EXPENSE-OTHER>                                276,976                  99,303
<INCOME-PRETAX>                                 89,983                (13,779)
<INCOME-PRE-EXTRAORDINARY>                      61,994                 (9,229)
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    61,994                 (9,229)
<EPS-BASIC>                                       1.29                  (0.19)
<EPS-DILUTED>                                     1.28                  (0.19)
<YIELD-ACTUAL>                                    4.69                    4.63
<LOANS-NON>                                     28,931                  28,931
<LOANS-PAST>                                     2,139                   2,139
<LOANS-TROUBLED>                                     9                       9
<LOANS-PROBLEM>                                 18,900                  18,900
<ALLOWANCE-OPEN>                                69,740                  72,689
<CHARGE-OFFS>                                   26,862                   9,795
<RECOVERIES>                                     6,444                   2,081
<ALLOWANCE-CLOSE>                               76,397                  76,397
<ALLOWANCE-DOMESTIC>                            51,600                  51,600
<ALLOWANCE-FOREIGN>                                  0                       0
<ALLOWANCE-UNALLOCATED>                         24,797                  24,797


</TABLE>


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