SECURITY BANK HOLDING CO
SB-1/A, 1996-08-30
STATE COMMERCIAL BANKS
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<PAGE>
    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON AUGUST 30, 1996.
 
                                        SECURITIES ACT REGISTRATION NO. 33-80795
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                    U.S. SECURITIES AND EXCHANGE COMMISSION
 
                             WASHINGTON, D.C. 20549
 
                            ------------------------
 
                                  FORM SB-1/A
 
                                AMENDMENT NO. 3
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
 
                            ------------------------
 
                         SECURITY BANK HOLDING COMPANY
                 (Name of small business issuer in its charter)
 
<TABLE>
<CAPTION>
              OREGON                              6022                      93-0800253
<S>                                <C>                                <C>
     (State or jurisdiction of        (Primary Standard Industrial       (I.R.S. Employer
  incorporation or organization)       Classification Code Number)     Identification No.)
</TABLE>
 
                        170 S. SECOND ST., P.O. BOX 1350
                      COOS BAY, OREGON 97420 541-267-5356
         (Address and telephone number of principal executive offices)
 
                         CHARLES D. BRUMMEL, PRESIDENT
                        170 S. SECOND ST., P.O. BOX 1350
                             COOS BAY, OREGON 97420
                                  541-267-5356
           (Name, address and telephone number of agent for service)
 
                        COPIES OF ALL COMMUNICATIONS TO:
 
<TABLE>
<S>                                       <C>
         Gordon E. Crim, Esq.                    Byron W. Milstead, Esq.
       Kenneth E. Roberts, Esq.            Ater Wynne Hewitt Dodson & Skerritt
      Foster Pepper & Shefelman                      1800 KOIN Center
    101 S.W. Main St., 15th Floor                  222 SW Columbia St.
        Portland, Oregon 97204                    Portland, Oregon 97201
       Counsel for the Company                 Counsel for the Underwriter
</TABLE>
 
                APPROXIMATE DATE OF PROPOSED SALE TO THE PUBLIC:
   AS SOON AS PRACTICABLE AFTER THE REGISTRATION STATEMENT BECOMES EFFECTIVE
 
                            ------------------------
 
    THE  REGISTRANT HEREBY  AMENDS THIS REGISTRATION  STATEMENT ON  SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A  FURTHER  AMENDMENT  WHICH SPECIFICALLY  STATES  THAT  THIS  REGISTRATION
STATEMENT  SHALL THEREAFTER BECOME EFFECTIVE IN  ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT  OF 1933  OR UNTIL  THE REGISTRATION  STATEMENT SHALL  BECOME
EFFECTIVE  ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.
 
    Disclosure alternative  used (check  one): Alternative  1____;   Alternative
2  _X_
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                         SECURITY BANK HOLDING COMPANY
 
                             CROSS REFERENCE SHEET
                        BETWEEN FORM SB-1 AND PROSPECTUS
 
<TABLE>
<CAPTION>
REGISTRATION STATEMENT ITEM AND HEADING                                            PROSPECTUS CAPTION
- ----------------------------------------------------------------  -----------------------------------------------------
<C>        <S>                                                    <C>
       1.  Inside Front and Outside Back Cover Pages of
            Prospectus..........................................  (Inside Front and Outside Back Cover)
       2.  Significant Parties..................................  Management; Principal Shareholders; Underwriting;
                                                                   Legal Matters
       3.  Relationship with Issuer of Experts Named in
            Registration Statement..............................  Legal Matters; Experts
       4.  Legal Proceedings....................................  Business
       5.  Changes in and Disagreements with Accountants........  (Not Applicable)
       6.  Disclosure of Commission Position on Indemnification
            for Securities Act Liabilities......................  Description of Common Stock
 
MODEL B ITEMS
- ----------------------------------------------------------------
       1.  Cover Page...........................................  (Outside Front Cover Page)
       2.  Distribution Spread..................................  (Outside Front Cover)
       3.  Summary Information, Risk Factors and Dilution.......  Prospectus Summary; Risk Factors; Dilution
       4.  Plan of Distribution.................................  Underwriting
       5.  Use of Proceeds to Issuer............................  Use of Proceeds
       6.  Description of Business..............................  Prospectus Summary; Business
       7.  Description of Property..............................  Properties
       8.  Directors, Executive Officers and Significant
            Employees...........................................  Management
       9.  Remuneration of Directors and Officers...............  Management
      10.  Security Ownership of Certain Security Holders and
            Management..........................................  Principal Shareholders
      11.  Interest of Managerial Officers in Certain
            Transactions........................................  Management
      12.  Securities Being Offered.............................  Description of Common Stock
 
PART F/S
- ----------------------------------------------------------------
       1.  Financial Information Required in Prospectus.........  Financial Statements
</TABLE>
<PAGE>
INFORMATION   CONTAINED  HEREIN  IS  SUBJECT   TO  COMPLETION  OR  AMENDMENT.  A
REGISTRATION STATEMENT  RELATING TO  THESE SECURITIES  HAS BEEN  FILED WITH  THE
SECURITIES  AND EXCHANGE  COMMISSION. THESE SECURITIES  MAY NOT BE  SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR  TO THE TIME THE REGISTRATION STATEMENT  BECOMES
EFFECTIVE.  THIS  PROSPECTUS  SHALL  NOT  CONSTITUTE AN  OFFER  TO  SELL  OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE  SECURITIES
IN  ANY STATE IN WHICH SUCH OFFER,  SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.
<PAGE>
                 PRELIMINARY PROSPECTUS, DATED AUGUST 19, 1996
                             SUBJECT TO COMPLETION
 
                         SECURITY BANK HOLDING COMPANY
 
                               170 S. SECOND ST.
                             COOS BAY, OREGON 97420
                            TELEPHONE: 541-267-5356
 
                         350,000 SHARES OF COMMON STOCK
 
    All of the shares of Common Stock, $5.00 par value ("Common Stock"), offered
hereby are newly issued shares of  Security Bank Holding Company. Prior to  this
Offering  there has been a limited public market for the shares of Security Bank
Holding Company  Common Stock.  The shares  are traded  in the  over-the-counter
market  through the OTC Bulletin Board Service and the Pink Sheet Service of the
National Quotation Bureau. The stock has traded  in the range of $7.75 to  $9.00
since  January 1, 1996, and was quoted at $    bid, $    ask as of             ,
    , the most recent day  prior to the Offering.  Application has been made  to
the  National  Association  of  Securities  Dealers  Automated  Quotation System
("NASDAQ") for  inclusion of  the Common  Stock in  the NASDAQ  National  Market
System under the symbol "SBHC."
                            ------------------------
 
    SEE  "RISK  FACTORS"  ON  PAGE  4 FOR  CERTAIN  INFORMATION  THAT  SHOULD BE
CONSIDERED BY PROSPECTIVE INVESTORS.
                             ---------------------
 
THE SHARES  OFFERED  HEREBY  ARE  NOT SAVINGS  OR  DEPOSIT  ACCOUNTS  OR  OTHER
 OBLIGATIONS  OF A BANK AND ARE NOT INSURED  BY THE BANK INSURANCE FUND OF THE
     FEDERAL DEPOSIT INSURANCE CORPORATION OR ANY OTHER GOVERNMENT AGENCY.
                            ------------------------
 
THESE SECURITIES HAVE NOT  BEEN APPROVED OR DISAPPROVED  BY THE SECURITIES  AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
  AND  EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
   ACCURACY OR ADEQUACY OF THIS PROSPECTUS.  ANY          REPRESENTATION  TO
                      THE CONTRARY IS A CRIMINAL OFFENSE.
 
<TABLE>
<CAPTION>
                                        PRICE TO         UNDERWRITING        PROCEEDS TO
                                       PUBLIC (1)       DISCOUNT (2)(3)      COMPANY (3)
<S>                                 <C>                <C>                <C>
Per Share.........................          $                  $                  $
Total (4).........................          $                  $                  $
</TABLE>
 
(1)  The price at which the Common Stock is expected to be offered to the public
    has not been determined as of  the date of this Preliminary Prospectus,  but
    is expected to be in the range of $8.00 to $9.00 per share.
 
(2)  See  "Underwriting"  for  information  concerning  indemnification  of  the
    Underwriter and other matters.
 
(3) Before deducting expenses payable by the Company, estimated to be $250,000.
 
(4) The Company has granted to the Underwriter a 45-day option to purchase up to
    52,500 additional shares  of Common Stock  on the same  terms per share,  to
    cover  over-allotments, if any.  If all such Common  Stock is purchased, the
    total Price to Public,  Underwriting Discount, and  Proceeds to the  Company
    will be $    , $        , and $       , respectively.
                            ------------------------
 
    The Common Stock is offered by the Underwriter, subject to prior sale, when,
as  and if  delivered to and  accepted by  it, and subject  to the Underwriter's
right to accept or  reject any order in  whole or in part.  It is expected  that
delivery  of the  Common Stock will  be made at  the office of  Black & Company,
Inc., Portland, Oregon on or about             , 1996.
                            ------------------------
 
                             BLACK & COMPANY, INC.
 
                THE DATE OF THIS PROSPECTUS IS            , 1996
<PAGE>
                         SECURITY BANK HOLDING COMPANY
 
                              PARENT COMPANY(1) OF
 
                                 SECURITY BANK
 
<TABLE>
<CAPTION>
                        DEPOSITS AS OF
BRANCH LOCATIONS        JUNE 30, 1996      YEAR OPENED
- ---------------------  ----------------  ----------------
<S>                    <C>               <C>
Bandon                 $     19,625,774        1974
Brookings-Harbor             14,092,575        1985
Bunker Hill                   8,125,137        1977
Coos Bay-Mall                25,306,483        1985
Coquille                     18,814,467        1971
Myrtle Point                 23,227,973        1919
North Bend                   22,000,850        1983
                       ----------------
Total                  $    131,193,259
                       ----------------
                       ----------------
</TABLE>
 
                         AND MAJORITY SHAREHOLDER(2) OF
                             LINCOLN SECURITY BANK
 
<TABLE>
<CAPTION>
                        DEPOSITS AS
                        OF JUNE 30,
LOCATION                   1996         DATE OPENED
- ---------------------  -------------  ----------------
<S>                    <C>            <C>
Newport                $   3,014,603    May 30, 1996
</TABLE>
 
- ------------------------
(1) Security Bank is a wholly-owned subsidiary of the Company.
 
(2) The Company owns approximately 68.44% of Lincoln Security Bank's outstanding
    capital stock.
 
    The Company  will  provide  to  shareholders  quarterly  reports  containing
unaudited   financial  statements   and  annual   reports  containing  financial
statements audited  by  the Company's  independent  auditors. In  addition,  the
Company will furnish annual reports on Form 10-KSB and quarterly reports on Form
10-QSB free of charge to shareholders who so request in writing addressed to the
Secretary of the Company.
 
    IN  CONNECTION WITH THIS OFFERING, THE  UNDERWRITER MAY OVER-ALLOT OR EFFECT
TRANSACTIONS WHICH STABILIZE  OR MAINTAIN THE  MARKET PRICE OF  THE SHARES AT  A
LEVEL  ABOVE  THAT  WHICH  MIGHT  OTHERWISE PREVAIL  IN  THE  OPEN  MARKET. SUCH
STABILIZING, IF COMMENCED, MAY BE DISCONTINUED AT ANY TIME.
 
                                       2
<PAGE>
                               PROSPECTUS SUMMARY
 
    THE  FOLLOWING SUMMARY  IS QUALIFIED  IN ITS  ENTIRETY BY  THE MORE DETAILED
INFORMATION AND CONSOLIDATED FINANCIAL STATEMENTS, INCLUDING THE NOTES  THERETO,
APPEARING  ELSEWHERE  IN  THIS  PROSPECTUS. EXCEPT  AS  OTHERWISE  INDICATED ALL
INFORMATION IN THIS PROSPECTUS  ASSUMES THE UNDERWRITER'S OVER-ALLOTMENT  OPTION
IS NOT EXERCISED.
 
THE COMPANY
 
    Security  Bank Holding  Company (the  "Company") is  a bank  holding company
headquartered in  Coos  Bay,  Oregon.  The  Company's  principal  subsidiary  is
Security Bank ("Security Bank"), a state-chartered, FDIC-insured commercial bank
organized  in 1919,  which serves  Coos and  Curry Counties,  Oregon, from seven
offices. The Company's only other subsidiary is Lincoln Security Bank ("Lincoln"
or "Lincoln  Security"),  a  newly-organized  state-chartered  bank  located  in
Newport,  Oregon, in which the Company  holds a majority interest. Security Bank
and Lincoln Security  are referred to  collectively herein as  the "Banks".  The
Banks  offer a broad range of commercial  and personal banking services to their
customers, who are primarily individuals, small and medium-sized businesses, and
professionals. The  Banks' lending  activities include  commercial, real  estate
construction  and consumer loans. They also originate residential mortgage loans
most of which are fixed rate loans  sold into the secondary market primarily  to
the  Federal  National  Mortgage  Association  and  Federal  Home  Loan Mortgage
Corporation. Through  a subsidiary  of Security  Bank, the  Company acts  as  an
insurance  agent selling  annuities, whole life  and health  care insurance and,
through an unaffiliated securities broker  dealer, makes available mutual  funds
for its customers.
 
    At June 30, 1996, the Company had consolidated assets of $170.1 million, net
loans  of $80.6 million and  deposits of $133.8 million.  Since January 1, 1990,
total assets, net 1oans, and deposits  have each increased at a compound  annual
rate of 11.60%, 8.98% and 9.40%, respectively.
 
    The Company's return on equity has exceeded 12% for each year since 1990 and
was  15.39%  and  16.61%  for  the  years  ended  December  31,  1995  and 1994,
respectively, and 11.47% (annualized)  for the six months  ended June 30,  1996.
During  this period the Company has maintained  strong asset quality, as of June
30, its net loan charge-offs as a  percentage of loans averaged 0.01%, which  is
below peer group averages.
 
    The Company has enjoyed this growth and performance from its primary markets
of  Coos and  Curry Counties.  While the population  of and  employment in these
counties are now growing, rebounding  from significant declines during the  late
1970's  and early 1980's when  forest products production dropped precipitously,
Security Bank has  grown faster  than the markets  it serves  by gaining  market
share from competitors. The Company believes that its success is attributable to
its  emphasis on personalized  customer service, its  mix of innovative products
tailored to  the needs  of its  local customers,  and its  identity as  a  local
community  bank.  To enhance  this success,  the  Company is  pursuing strategic
opportunities in markets beyond those which it currently serves. For example, to
diversify credit risks  and generate more  loan demand, Security  Bank opened  a
mortgage  banking office in Eugene, Oregon,  in November, 1995. In addition, the
Company's investment in  Lincoln Security  is intended to  expand the  Company's
market by replicating the successful strategy used by Security Bank. The economy
of  Lincoln  County  derives more  benefit  from  tourism and  its  proximity to
Portland, Oregon, than Coos and Curry Counties, and is currently enjoying  lower
unemployment rates. The Company believes that the investment in Lincoln Security
Bank  further diversifies the Company's exposure to credit risks and presents an
opportunity to experience additional growth.
 
    The Banks compete directly with much larger commercial banks, each of  which
is  a  subsidiary of  a multi-state  financial services  company, operates  in a
number of other  markets, and has  more resources  than the Banks.  In order  to
compete  effectively, the  Banks have chosen  to provide  more personal customer
service  than  their  competitors,  and  distinguish  themselves  as  the  local
community  bank  in  their  respective  markets.  This  marketing  strategy  has
permitted Security Bank to enjoy strong net interest margins, among the  highest
of community banks of any size. As community banks,
 
                                       3
<PAGE>
the  Banks are able to offer loan and deposit products specifically designed for
the markets they serve. For example,  Security Bank offers products intended  to
meet  the needs  of the  increasing number of  retirees which  constitute a high
percentage of the new residents in Coos  and Curry Counties. As a result of  its
business strategy, Security Bank has been the fastest growing bank in its market
since 1990, as measured by the rate of increase in total deposits.
 
RISK FACTORS
 
    Prospective  investors should  carefully consider  the risks  inherent in an
investment in the Common Stock offered  hereby. Such risks include the  exposure
to the local economy, credit and interest-rate risks, concentration of ownership
in   certain  shareholders,  regulatory  risks,  dependence  on  key  personnel,
competition, a limited  market for the  stock, and certain  other risks as  more
fully discussed herein. See "Risk Factors".
 
THE OFFERING
 
<TABLE>
<S>                                      <C>
COMMON STOCK
  Common Stock offered by the
   Company.............................  350,000
  Common Stock to be outstanding after
   the Offering........................  3,112,325(1)
DIRECTED SHARES........................  35,000  shares (10% of the Offering) have been
                                         reserved,  subject  to  demand,  for  sale  to
                                         directors,  officers, employees  and customers
                                         of  the  Company  and  its  subsidiaries,  and
                                         residents of Coos, Curry and Lincoln Counties,
                                         consistent  with  the Company's  current local
                                         ownership and focus.
USE OF PROCEEDS........................  The net proceeds of the Offering will be  used
                                         to  enhance capital levels to support internal
                                         growth  of  the   Company,  and  for   general
                                         corporate  purposes.  The  Company  may  use a
                                         portion of  the  proceeds  to  prepay  certain
                                         indebtedness   of  the   Company  incurred  in
                                         connection with the  Company's Employee  Stock
                                         Ownership  Plan.  See  "Use  of  Proceeds" and
                                         "Management -- Other Benefit Plans."
NASDAQ NMS SYMBOL......................  SBHC
</TABLE>
 
- ------------------------
(1) Includes 522,471 shares issued to the Security Bank Holding Company Employee
    Stock Ownership  Plan which  are  not yet  allocated  to employees  and  are
    pledged to secure repayment of notes to the Company. Does not include 96,600
    shares subject to stock options. See "Management -- Other Benefit Plans."
 
                                       4
<PAGE>
                      SELECTED CONSOLIDATED FINANCIAL DATA
 
    The   following  table   sets  forth  certain   information  concerning  the
consolidated financial condition, operating results, and key operating ratios at
the dates and for the periods indicated. The data for the six months ended  June
30, 1996 and 1995, are derived from unaudited consolidated financial statements,
but,  in the opinion of management, reflect all adjustments necessary for a fair
presentation of the data for these periods. Operating results for the six months
ended June 30, 1996, are not necessarily  indicative of the results that may  be
expected for the entire year ending December 31, 1996. This information does not
purport  to be  complete, and  should be  read in  conjunction with Management's
Discussion and Analysis of  Financial Condition and  Results of Operations,  and
the  Consolidated Financial Statements of the Company and Notes thereto included
in this Prospectus.
 
<TABLE>
<CAPTION>
                                                            SIX MONTHS ENDED
                                                                JUNE 30,              YEAR ENDED DECEMBER 31,
                                                      ----------------------------  ----------------------------
                                                          1996           1995           1995           1994
                                                      -------------  -------------  -------------  -------------
                                                              (UNAUDITED)
<S>                                                   <C>            <C>            <C>            <C>
INCOME STATEMENT DATA
  Interest income...................................  $   6,480,411  $   5,907,746  $  11,956,672  $  10,202,954
  Interest expense..................................      2,625,035      2,147,500      4,421,195      3,134,453
                                                      -------------  -------------  -------------  -------------
  Net interest income...............................      3,855,376      3,760,246      7,535,477      7,068,501
  Provision for loan losses.........................         90,000         95,000        160,000        200,000
                                                      -------------  -------------  -------------  -------------
  Net interest income after provision for loan
   losses...........................................      3,765,376      3,665,246      7,375,477      6,868,501
  Non-interest income...............................      1,398,812      1,039,990      2,244,446      1,960,645
  Non-interest expense..............................      4,059,054      3,623,501      7,122,814      6,392,068
                                                      -------------  -------------  -------------  -------------
  Income before provision for income taxes..........      1,105,134      1,081,735      2,497,109      2,437,078
  Provision for income taxes........................        280,000        323,000        633,000        761,700
                                                      -------------  -------------  -------------  -------------
  Net income........................................  $     825,134  $     758,735  $   1,864,109  $   1,675,378
                                                      -------------  -------------  -------------  -------------
                                                      -------------  -------------  -------------  -------------
DIVIDENDS
  Cash..............................................  $     224,736  $     159,936  $     319,885  $     284,090
  Ratio of dividends declared to net income.........          27.24%         21.08%         17.16%         16.96%
PER SHARE DATA (1)
  Net income per share..............................  $        0.36  $        0.35  $        0.83  $        0.77
  Cash dividends per common share...................  $        0.10  $        0.07  $        0.14  $        0.13
  Weighted average shares outstanding...............      2,269,517      2,180,990      2,239,670      2,180,763
BALANCE SHEET DATA (AT PERIOD END)
  Investment securities.............................  $  70,028,458  $  51,768,791  $  58,227,575  $  53,860,160
  Loans, net and mortgage loans held for sale.......     81,991,144     77,163,307     79,527,430     73,922,003
  Total assets......................................    170,068,251    147,339,058    158,588,333    145,570,559
  Total deposits....................................    133,801,070    121,042,292    127,290,415    121,118,155
  Total shareholders' equity........................     13,889,249     12,037,484     14,371,854     10,628,796
SELECTED RATIOS
  Return on average total assets....................           1.00%          1.04%          1.26%          1.25%
  Return on average total shareholders' equity......          11.61%         13.29%         15.39%         16.61%
  Net interest spread...............................           4.46%          5.09%          4.96%          5.30%
  Efficiency ratio (2)..............................          77.36%         75.49%         72.83%         70.79%
ASSET QUALITY RATIOS
  Reserve for loan losses to:
    Ending total loans..............................           1.27%          1.42%          1.32%          1.35%
    Non-performing assets...........................         219.20%        557.58%        227.62%       1588.70%
  Non-performing assets to ending total
   assets (3).......................................           0.28%          0.14%          0.29%          0.04%
  Net loan charge-offs to average loans.............          (0.12) %         (0.01) %         (0.15) %         (0.14) %
CAPITAL RATIOS
  Average shareholders' equity to average assets....           8.65%          7.82%          8.18%          7.51%
  Tier 1 capital ratio (4) (5)......................          13.34%         11.68%         12.36%         11.11%
  Total risk-based capital ratio (5)................          14.31%         12.73%         13.36%         12.10%
  Leverage ratio (5) (6)............................           8.39%          8.36%          8.29%          7.88%
</TABLE>
 
- ------------------------------
(1)  Per share data has been adjusted for the 50% stock dividend paid on January
     5, 1996.  Excludes  shares issued  to  the Security  Bank  Holding  Company
     Employee  Stock Ownership Plan which are not yet allocated to employees and
     are pledged to secure repayment of notes to the Company. See "Management --
     Other Benefit Plans."
 
                                       5
<PAGE>
(2)  Efficiency ratio is noninterest expense divided by the sum of net  interest
     income plus noninterest income.
 
(3)  Nonperforming  assets consist of nonaccrual loans, loans contractually past
     due 90 days or more and other real estate owned.
 
(4)  This ratio is Tier 1 capital divided by risk-weighted assets.
 
(5)  Computed in accordance with final 1994 Federal Reserve Bank guidelines.
 
(6)  Leverage ratio is Tier 1 capital divided by adjusted total assets.
 
                                       6
<PAGE>
                                  RISK FACTORS
 
    Prospective  investors should carefully consider  the following risk factors
as well as the other information contained in this Prospectus.
 
EXPOSURE TO LOCAL ECONOMY
 
    The  Company's  performance  is  substantially  dependent  on  the   banking
operations  of the  Banks. Security  Bank's operations  are materially dependent
upon and sensitive to the economy of  its market area along the southern  Oregon
coast.  Adverse economic developments can impact the collectibility of loans and
have a negative effect  on the Company's earnings  and financial condition.  The
economies  of  Coos  and  Curry Counties  depend  primarily  on  forest products
manufacturing, retail  trade,  tourism, government,  services  and  agriculture.
Particularly  in  the  1980's,  Security  Bank's  market  area  experienced high
unemployment as a result of the  shift away from forest products  manufacturing,
including a 48% reduction in Coos County forest products manufacturing jobs from
1983  to 1993.  The job  losses and  mill closures  of the  early 1980's  led to
significant loan losses by  the Bank. Subsequent  developments have reduced  the
dependence  of  the  local economy  on  forest products  manufacturing  and have
increased the number of non-manufacturing jobs. Nonetheless, forest products job
losses are expected to continue and there can be no assurance that new jobs will
replace those lost, or that future economic changes will not have a  significant
adverse  impact on Security Bank and  the Company. Lincoln Security is similarly
exposed to and dependent on  the economy of its  market area in Lincoln  County,
which,  although not  as dependent  on the forest  products industry  as Coos or
Curry Counties, is nonetheless subject to  changes in its primary industries  of
tourism and fishing. Accordingly, no assurances can be made that future economic
changes  will not  have a  significant adverse  impact on  Lincoln Security. See
"Business -- Economic Conditions and Demographics."
 
CREDIT RISK
 
    The Company, like  other lenders, is  subject to credit  risk, which is  the
risk  of losing  principal and  interest due  to a  customer's failure  to repay
according to the terms of loan agreements. Security Bank's net charge-offs, past
due loans, and non-performing loans have been significantly less than  community
banks  of similar size over the past three years. As a new bank, Lincoln has had
no loan-loss experience. The Banks lend on a short-term basis to commercial  and
individual borrowers for construction purposes and provide variable rate pricing
on  term real estate loans. As of June 30, 1996, Security Bank had approximately
43% of its loan portfolio in real  estate related loans which included a mix  of
commercial,  residential and construction  real estate loans.  A downturn in the
economy or the real estate market along the central or southern Oregon coast  or
a  rapid increase in interest  rates could have a  negative impact on collateral
values and the  borrowers' ability  to repay. See  "Management's Discussion  and
Analysis  of Financial Condition and Results of Operations -- Lending and Credit
Management."
 
INTEREST RATE RISK
 
    The Banks' earnings are largely derived  from net interest income, which  is
interest  income and  fees earned on  loans and investment  income less interest
expense paid  on  deposits  and  other borrowings.  Interest  rates  are  highly
sensitive  to many factors which are beyond  the control of the Banks, including
general economic  conditions  and  the  policies  of  various  governmental  and
regulatory  authorities.  As  interest  rates  change,  net  interest  income is
affected. With fixed  rate assets  (such as  fixed rate  loans) and  liabilities
(such  as certificates of deposit), the rate at which this change occurs depends
on the maturity of the asset  or liability. The differences between the  amounts
of  interest-sensitive assets and  interest-sensitive liabilities, measured over
various time periods, are referred  to as sensitivity gaps. Although  management
strives  to  minimize  risk  through  asset/liability  management  policies  and
believes that the  maturities of the  Banks' assets are  reasonably balanced  in
relation  to maturities of  liabilities to limit sensitivity  gaps, from time to
time maturities  are not  balanced. During  such periods,  a rapid  decrease  or
increase  in  interest  rates  could  have  an  adverse  effect  on  the spreads
 
                                       7
<PAGE>
between the interest rates earned  on assets and the  rates of interest paid  on
liabilities,   and  therefore   on  the   Banks'  results   of  operations.  See
"Management's Discussion  and Analysis  of Financial  Condition and  Results  of
Operations -- Interest Sensitivity."
 
LINCOLN SECURITY BANK
 
    As  part of  the Company's  strategic plan  for growth  through geographical
diversification, the Company recently assisted with the organization of  Lincoln
Security  Bank, a  new commercial  bank in  Newport, Oregon,  which received its
charter  and  commenced  operations  on  May  30,  1996.  The  Company  invested
approximately $2.1 million of Lincoln's $3.0 million initial capital through the
purchase  of  all of  the  shares of  Lincoln's Class  B  Common Stock,  and has
committed to provide administrative and operational support to the new bank  for
which  services the  Company, for  the first  year of  Lincoln's operation, will
receive fees based on  the incremental cost to  Security Bank of providing  such
services.  After that time, the services and fees will be subject to negotiation
and are  expected  to  be  of  a  similar  nature  and  magnitude  as  currently
established. The Company owns a majority of Lincoln's voting stock and can elect
a  majority of its Board of Directors.  The initial Board of Directors, however,
comprises primarily local  Lincoln County representatives  and two directors  of
the  Company.  Although  the Company,  through  its ownership  of  a controlling
interest, retains the prerogative of replacing Lincoln's directors and otherwise
influencing management  decisions, the  Company expects  to permit  the bank  to
operate as an independent community bank provided that the bank's performance is
deemed satisfactory by the Company's board of directors, giving consideration to
the   operating  history  of  the  bank,  the  local  economic  and  demographic
conditions, and factors affecting the banking industry in general.
 
    Local investors, who purchased shares of Lincoln's Class A Common Stock in a
community offering to raise the balance of the initial capital of the bank, have
an option to purchase the Class B  Common Stock from the Company, in  accordance
with  a shareholders agreement, during  a five year period  beginning on May 30,
2001, and ending May 30, 2006, at a price per share equal to the greater of  (a)
$10.00   (as  adjusted  for  any  stock   split,  cash  or  stock  dividend,  or
reclassification) increased by the  lesser of the annualized  rate of return  on
equity  for the Company  for each year  after the date  of Lincoln's charter, or
17.5%, such rate applied annually and compounded  as of January 1 of each  year,
or  (b) the appraised value  as determined in accordance  with the procedure set
forth in the shareholders  agreement. Accordingly, the  Company's return on  its
investment in Lincoln could be limited by the pre-determined price for the Class
B  Common Stock in accordance with the  terms of the shareholders agreement. See
"Business -- Lincoln Security Bank."
 
    As a commercial bank, Lincoln  faces not only the  same risks faced by  most
community  banks,  but  also  has  commenced  its  operations  with  no previous
business, depositors, loan  customers or other  business relationships. Even  if
Lincoln is successful in implementing its business plan, which success cannot be
assured, it is likely to incur losses during the first year of operation. In the
event  Lincoln  incurs  losses which  reduce  its capital  below  the regulatory
minimum levels, Lincoln's  shareholders may  be subject to  assessment on  their
shares.  Thus,  the Company  may  be required  to  invest additional  capital to
support the bank or risk the loss of its investment. In the event the  Company's
shares  of Lincoln stock were assessed,  the investment of additional capital in
Lincoln could adversely  impact the Company's  ability to pay  dividends to  its
shareholders  or  to entertain  other  opportunities to  expand  its operations.
Accordingly, the results of Lincoln's operations could have an adverse impact on
the Company's earnings,  dividend payments  or future growth.  Moreover, as  the
ability of Lincoln to pay dividends to its shareholders is limited by regulatory
restrictions,  the Company is unlikely to receive dividends from the bank in the
foreseeable future. See "Business -- Lincoln Security Bank" and "Supervision and
Regulation -- Dividends."
 
MORTGAGE LENDING OPERATION'S CONTRIBUTION TO INCOME
 
    Security Bank derives  income from  originating mortgage  loans and  selling
them  into the  secondary market.  The contribution  to Security  Bank's pre-tax
income from this activity represented 5.79% for the six month period ended  June
30,   1996,   and  6.51%   and   5.55%  for   the   years  ended   December  31,
 
                                       8
<PAGE>
1995, and 1994, respectively. The bank has benefitted from mortgage  refinancing
transactions  that  have been  motivated by  favorable interest  rates. Although
Security Bank  will continue  to originate  and sell  loans into  the  secondary
market,  there  is  no  assurance  that  the  current  favorable  interest  rate
environment will continue or that  mortgage lending operations will continue  to
contribute  as  favorably  to the  net  income  of the  Bank.  See "Management's
Discussion and  Analysis of  Financial Condition  and Results  of Operations  --
Non-Interest Income."
 
CONCENTRATION OF OWNERSHIP
 
    As of June 30, 1996, 35.43% of the Company's outstanding shares were held by
the  Company's Employee Stock Ownership Plan  ("ESOP"), although 53.38% of those
shares are pledged by the  ESOP to secure borrowings  from the Company, and  are
not  allocated to  employees and are  therefore excluded from  earnings and book
value per  share  calculations. Although  the  percentage of  total  outstanding
shares  held by the ESOP  will decrease to 31.45%  after this Offering, the ESOP
will  remain  the  Company's  largest  shareholder  by  a  significant   margin.
Accordingly, the election of directors and other matters considered and voted on
by  Company shareholders may be  significantly affected by the  vote of the ESOP
shares, and the ability  of other shareholders  to influence management  through
the  election of directors or by  shareholder resolution will likely be limited.
The ESOP is under the supervision of a three-member Board of Trustees  appointed
by the Board of Directors of the Company. Currently, one of these Trustees is an
employee  of Security  Bank. Under the  Employee Retirement  Income Security Act
("ERISA"), the  Trustees are  obligated to  act  in the  best interests  of  the
employee-beneficiaries of the ESOP, as investors in the Company. See "Management
- -- Other Benefit Plans."
 
    The  directors of the Company currently own an additional 222,042 shares, or
8.04% of the Company's outstanding shares (in addition to certain shares in  the
ESOP),  which  will  decrease  to  7.13% after  the  Offering.  An  investor not
represented on the Board of Directors  holds an additional 18.42% (16.35%  after
the Offering) of the outstanding shares. See "Principal Shareholders."
 
COMPETITION
 
    The  banking industry in  Oregon is highly competitive  with respect to both
loans and deposits, and is dominated by a small number of large banks with  many
offices  operating over a wide geographic area.  As of June 30, 1996, there were
four other commercial banks with twenty-three offices in Security Bank's primary
service area, all of which are banks with significantly greater assets and  with
operations  in other  parts of  Oregon. Additionally,  there are  several credit
unions, a savings association, finance  companies and mortgage companies in  the
Company's  service  area. A  similar competitive  environment exists  in Lincoln
County where Lincoln Security Bank  operates. Among the advantages possessed  by
the  Banks' commercial bank  competitors is the  ability to conduct wide-ranging
advertising campaigns and  to allocate  assets to geographic  regions of  higher
yields  and demand. By virtue of  their greater total capitalization, such banks
also have substantially higher lending limits than the Banks. Additionally, such
banks offer certain services, such as trust and international banking  services,
which   are  not  offered  directly  by  the  Banks,  but  are  offered  through
arrangements  with  correspondent   institutions.  In   1994,  the   Riegle-Neal
Interstate  Banking and Branching  Efficiency Act was  adopted by Congress which
permits banks to  cross state  boundaries. Some  of the  Banks' competitors  are
likely  to reduce costs by combining  what are now commonly-owned separate banks
in different states. Although Security Bank has been able to compete effectively
in its market area, there can be no  assurance that it will be able to  continue
to  do so, or that Lincoln Security will effectively compete in its market area.
See "Business -- Competition."
 
DEPENDENCE ON KEY PERSONNEL
 
    The Company's success is  dependent on the services  of Charles D.  Brummel,
President  and Chief  Executive Officer, and  Michael J.  Delvin, Executive Vice
President, of  the  Company  and  the  Bank. The  loss  of  services  of  either
executive,  or of certain other key officers, could adversely affect the Company
 
                                       9
<PAGE>
and the Bank. No assurance can be given that replacement officers of  comparable
abilities  could  be  found.  The  Company does  not  maintain  key  person life
insurance on these individuals. See "Management."
 
LIMITED MARKET FOR THE SHARES
 
    There is currently a limited market  for the Company's shares. Although  the
shares  will be offered on the over-the-counter market, and application has been
made to  list the  shares  on the  National  Association of  Securities  Dealers
Automated  Quotation ("NASDAQ") National Market System  ("NMS"), there can be no
assurance that an  active public market  will develop or  be maintained for  the
shares.  Black & Company, Inc., the Underwriter of the Offering, and Ryan Beck &
Co. have committed to  make a market  in the shares. The  Company will seek  and
encourage other market makers to make a market, but no assurance can be given as
to  whether an active market will develop.  The market price could be subject to
significant fluctuations  in  response  to  variations  in  quarterly  operating
results  of the  Company, general conditions  of the banking  industry and other
factors. If an active market  in the shares does not  develop, the price of  the
shares  may fluctuate substantially due to the  effect of supply and demand in a
limited market. Even if an active market for the shares does develop,  investors
in  this Offering cannot be assured of  being able to resell shares purchased in
the Offering at  or above  the initial offering  price. See  "Market for  Common
Stock."
 
DEPENDENCE UPON SUBSIDIARY OPERATIONS
 
    The  Company is a  bank holding company and  is substantially dependent upon
dividends from its subsidiaries,  the Banks, for revenues  to pay its  expenses,
including  debt repayment, and  to pay dividends to  shareholders. The Banks are
subject to regulatory limitations upon the payment of dividends and the  receipt
of  dividends from the Banks  cannot be assumed. Further,  no cash dividends are
anticipated from Lincoln Security during that bank's initial years of operation.
Accordingly, the  Company  is  dependent  on Security  Bank  for  its  revenues.
Although  the Company  expects to  continue to  receive dividends  from Security
Bank, no assurances as to the timing or amount of future dividends can be  made.
See "Dividends" and "Supervision and Regulation -- Dividends."
 
OFFERING PRICE
 
    The price of the shares offered hereby was derived from negotiations between
the  Company and the Underwriter. There can be no assurance that the market will
sustain the offering price or that the offering price necessarily indicates  the
actual  value of the Common  Stock. Although past trading  has been limited, the
closing bid prices over the past three years have, except in the fourth  quarter
of  1995, been below the offering price  of the Common Stock. See "Underwriting"
and "Market for Common Stock."
 
REGULATORY RISK
 
    Banks are subject to extensive regulation. These regulations are intended to
protect depositors not  shareholders. As  state-chartered banks,  the Banks  are
subject   to  regulation  and  supervision  by  the  Federal  Deposit  Insurance
Corporation ("FDIC"), which insures the Banks' deposits, and the Director of the
Oregon Department of  Consumer and  Business Services, through  the Division  of
Finance  and Corporate  Securities (the  "Oregon Director").  As a  bank holding
company, the Company is  subject to regulation and  supervision by the Board  of
Governors  of  the Federal  Reserve System  ("Federal  Reserve") and  the Oregon
Director. Federal and state regulation puts banks at a competitive  disadvantage
compared to less regulated competitors such as finance companies, credit unions,
mortgage banking companies, and leasing companies.
 
    While  the banking industry continues to lose market share to less regulated
competitors, legislative reactions to the  problems of the thrift industry  have
added  to  the  regulatory  burden  on  banks.  The  Federal  Deposit  Insurance
Corporation Improvement Act of 1991 ("FDICIA") amended numerous federal  banking
statutes  and has required the bank regulatory agencies to adopt regulations for
 
                                       10
<PAGE>
implementing many of its provisions.  The FDICIA and the regulations  thereunder
have   increased   regulatory   and  supervisory   requirements   for  financial
institutions which  has resulted,  and  will continue  to result,  in  increased
operating expenses. See "Supervision and Regulation."
 
ANTI-TAKEOVER PROVISIONS
 
    Oregon   law  includes  limitations  upon   the  acquisition  of  an  Oregon
corporation, such as the Company. As a bank holding company, the acquisition  of
the  Company  or  its  subsidiaries  would be  subject  to  approval  of banking
regulators. These limitations and requirements may serve to delay or prevent  an
acquisition  of the Company by another financial institution without the consent
and cooperation of  the Board  of Directors  of the  Company. Moreover,  certain
provisions  of Oregon law  limit the ability  of persons or  entities to acquire
control of the Company or to  effect certain corporate transactions without  the
consent  of the  board of  directors or  the shareholders.  These provisions are
intended  to  discourage  hostile  corporate  acquisitions.  In  addition,   the
Company's  articles of incorporation  authorize the board  of directors to issue
additional shares  of authorized  but unissued  shares of  the Company's  stock,
including  the Common  Stock, voting preferred  stock, and  warrants, options or
other rights to  acquire shares of  stock. While this  authority is intended  to
give  the  board  the  ability  to raise  capital,  and  provide  flexibility in
financing corporate transactions, the issuance  of additional securities of  the
Company  could  have  the  effect  of  diluting  the  ownership  interest  of  a
substantial shareholder  or increasing  the consideration  necessary to  acquire
control  of  the  Company, and  could  thus  be deemed  to  be  an anti-takeover
provision. Further,  the  Company's bylaws  provide  for a  staggered  board  of
directors  whereby approximately one-third of  the director positions are filled
each year. This provision makes it more difficult for a dissident shareholder to
remove the entire board of directors at one time. Such a provision may have  the
effect   of  discouraging  potential   acquirors,  and  may   be  considered  an
anti-takeover defense. Oregon law  and the Company's  bylaws may therefore  have
the  effect  of  making  the  Company  less  attractive  for  takeover,  and the
shareholders may not benefit from a rise in the price of the Common Stock that a
takeover  could  cause.  See  "Description  of  Common  Stock  --  Anti-takeover
Provisions."
 
                                USE OF PROCEEDS
 
    The net proceeds to the Company from the sale of the Common Stock offered by
the  Company  are estimated  to be  $2,648,000  after deduction  of underwriting
discounts and expenses payable by the Company.
 
    The net proceeds of  the Offering are not  currently allocated for  specific
purposes.  Management  expects  to use  the  net proceeds  generally  to enhance
capital levels to support  the growth of the  Company and for general  corporate
purposes.  The Company's investment in  Lincoln Security committed a significant
portion of the Company's available  capital. Consequently, the Company  believes
it  prudent to restore capital levels to prior levels to position the Company to
take advantage  of future  opportunities  for growth  or expansion  should  such
opportunities  arise. The Company will from  time to time consider investment or
acquisition candidates and establishment of branches outside its current  market
area.  The  Company  currently  has  no  specific  plans,  agreements  or  other
arrangements with others for any investment or acquisition at this time.
 
    The Company may use certain  of the net proceeds to  pay some or all of  the
Company's  indebtedness to  Bank of  America Oregon,  with a  current balance of
$644,000, incurred in  connection with  the Company's  Employee Stock  Ownership
Plan.  The loan  accrues interest  at Bank of  America Oregon's  prime rate less
one-half percent, and  matures on December  15, 1999. See  "Management --  Other
Benefit  Plans." Pending  their ultimate application,  the net  proceeds will be
invested in short-term investments.
 
    The  Company  and   the  Bank  currently   exceed  all  regulatory   capital
requirements  and  are therefore  not required  to  raise additional  capital to
comply with  such  requirements. After  the  Offering, the  Company  expects  to
continue to exceed all regulatory requirements.
 
                                       11
<PAGE>
                            MARKET FOR COMMON STOCK
 
    Only  a  limited market  for  the Common  Stock  has existed  prior  to this
Offering. The  Common Stock  has been  traded over-the-counter  through the  OTC
Bulletin  Board and the Pink Sheet Service of the National Quotation Bureau. The
Company has applied  for inclusion of  the Common Stock  on the NASDAQ  National
Market  System under the  symbol "SBHC" effective  on the date  of the Offering.
Effective with the Offering, the Company's Common Stock will be registered under
the Securities Exchange Act of 1934 and is expected to be eligible to be held in
margin accounts. The following lists the bid  prices at the end of each  period,
obtained from Black & Company, Inc., the principal market maker in the Company's
Common  Stock,  as adjusted  for  prior stock  dividends  including a  50% stock
dividend paid on January 5, 1996.  Prices do not include retail mark-ups,  mark-
downs or commissions and may not represent actual transactions:
 
<TABLE>
<CAPTION>
                                                                              CLOSING BID PRICE
                                                                              AT END OF PERIOD
                                                                              -----------------
<S>                                                                           <C>
1994
  First Quarter.............................................................      $    4.83
  Second Quarter............................................................      $    5.33
  Third Quarter.............................................................      $    5.67
  Fourth Quarter............................................................      $    5.50
1995
  First Quarter.............................................................      $    5.33
  Second Quarter............................................................      $    6.00
  Third Quarter.............................................................      $    6.83
  Fourth Quarter............................................................      $    7.67
1996
  First Quarter.............................................................      $    7.88
  Second Quarter............................................................      $    8.50
</TABLE>
 
    On  June 30, 1996, the Common Stock  was held of record by approximately 455
shareholders, a number which does not include beneficial owners who hold  shares
in  "street name." As  of August 15, 1996,  the closing bid  price of the Common
Stock was $8.50 per share.
 
                                       12
<PAGE>
                                 CAPITALIZATION
 
    The following table sets forth:  (i) the consolidated capitalization of  the
Company  at  June 30,  1996,  and (ii)  the  consolidated capitalization  of the
Company on an  as-adjusted basis  giving effect to  the issuance  of the  Common
Stock  offered hereby and receipt  of net proceeds therefrom,  as if the sale of
the Common Stock had been consummated on June 30, 1996.
 
<TABLE>
<CAPTION>
                                                                                        JUNE 30, 1996
                                                                                ------------------------------
                                                                                    ACTUAL       AS ADJUSTED
                                                                                --------------  --------------
<S>                                                                             <C>             <C>
SHAREHOLDERS' EQUITY:
Nonvoting preferred stock, $5.00 par value
  Authorized 5,000,000 shares, none issued....................................  $     --        $     --
Voting preferred stock, $5.00 par value
  Authorized 5,000,000 shares, none issued....................................        --              --
Common Stock, $5.00 par value
  Authorized 10,000,000 shares;
   2,762,325 shares issued and outstanding....................................      13,811,625
  3,112,325 shares issued and outstanding, as adjusted........................                      16,459,625
Surplus.......................................................................         164,862         164,862
Retained earnings.............................................................       2,289,352       2,289,352
Unrealized gains on investment securities available for sale..................        (523,276)       (523,276)
Less unearned ESOP shares at cost (1).........................................       1,853,314       1,853,314
                                                                                --------------  --------------
Total Shareholders' Equity -- Controlling Interest............................  $   13,889,249  $   16,537,249
                                                                                --------------  --------------
                                                                                --------------  --------------
CAPITAL RATIOS (2):
  Tier 1 capital ratio........................................................          13.34%          15.77%
    (Regulatory Minimum: 4.00%)
  Total risk-based capital ratio..............................................          14.31%          16.75%
    (Regulatory Minimum: 8.00%)
  Leverage capital ratio (3)..................................................           8.39%           9.77%
    (Regulatory Minimum: 3.00%)
</TABLE>
 
- ------------------------
(1) Reflects 522,471 shares held of record by the Security Bank Holding  Company
    Employee  Stock  Ownership  Plan Trust.  Such  shares are  not  allocated to
    employees and  are  pledged  to  secure repayment  of  indebtedness  to  the
    Company.  At the time the shares are allocated and released from the pledge,
    an amount equal to the then market value of the shares is charged to  income
    and  shareholders' equity increases  by an equal  amount. See "Management --
    Benefit Plans."
 
(2) Computed in accordance with Federal Reserve guidelines. See "Supervision and
    Regulation."
 
(3) The leverage ratio is Tier 1 capital divided by adjusted total assets.
 
                                       13
<PAGE>
                                    DILUTION
 
    The net tangible book value of the Company at June 30, 1996 was  $13,889,249
or  $6.20  per share  of  Common Stock.  Net tangible  book  value per  share is
determined by dividing  the net  tangible book  value of  the Company  (tangible
assets  less liabilities)  by the number  of outstanding shares  of Common Stock
(excluding 522,471 shares held  of record by the  Security Bank Holding  Company
Employee Stock Ownership Plan Trust which are not allocated to employees and are
pledged to secure repayment of indebtedness to the Company). After giving effect
to  the issuance and sale of 350,000 shares of Common Stock being offered by the
Company (at an assumed  Offering price of $9.00  per share) and after  deducting
Underwriting discounts and offering costs, the net tangible book value per share
at June 30, 1996 would have been $6.39. This represents an immediate increase in
net  tangible book value of $0.19 per  share to the existing shareholders and an
immediate dilution of $2.61 per share to new investors.
 
    The following table illustrates this per share dilution in net tangible book
value:
 
<TABLE>
<S>                                                          <C>        <C>
Assumed Offering price.....................................             $    9.00
Net tangible book value before offering....................  $    6.20
Increase attributable to sale of Common Stock by the
 Company to new investors..................................        .19
                                                             ---------
Proforma net tangible book value after the Offering (1)....                  6.39
                                                                        ---------
Dilution to new investors (2)..............................             $    2.61
                                                                        ---------
                                                                        ---------
</TABLE>
 
- ------------------------
(1) After deduction of  underwriting discounts and  commissions and  anticipated
    offering expenses to be paid by the Company.
 
(2) Dilution  is determined  by subtracting  net tangible  book value  per share
    after the Offering  from the amount  of cash paid  by a new  investor for  a
    share of Common Stock.
 
                                   DIVIDENDS
 
    The  Company has paid  cash dividends for  each of the  past six full fiscal
years. Dividends for those periods were as follows:
 
<TABLE>
<CAPTION>
               CASH DIVIDEND PER SHARE
   PERIOD                (1)
- ------------  --------------------------
<S>           <C>
    1991             $   0.067
    1992             $   0.087
    1993             $   0.100
    1994             $   0.133
    1995             $   0.147
    1996             $   0.200(2)
</TABLE>
 
- ------------------------
(1) Adjusted to reflect subsequent stock dividends.
 
(2) In addition to cash dividends, the  Company issued a 100% stock dividend  in
    August, 1994 and a 50% stock dividend in January, 1996.
 
    The  Company  has  no  significant  operations  and  is  dependent  upon its
subsidiaries, the Banks, for revenues through the receipt of dividends from  the
Banks  to  pay its  expenses  and to  provide  cash dividends  to  the Company's
shareholders. Currently, and for  the foreseeable future,  Security Bank is  the
Company's  sole  source  of  dividends.  Oregon  and  federal  banking  laws and
regulations place restrictions  on the  payment of dividends  by a  bank to  its
shareholders.  See  "Supervision  and  Regulation --  Dividends."  The  Board of
Directors' dividend policy  is to  review the  Company's financial  performance,
capital  adequacy, regulatory compliance and cash resources, and, if such review
is  favorable,  to  declare  and  pay  a  cash  dividend  to  its   shareholders
semi-annually.  Although the Company expects to  continue to pay cash dividends,
future dividends are subject to these  limitations and to the discretion of  the
Board  of  Directors, and  could be  reduced or  eliminated. The  performance of
Lincoln Security Bank is not expected to have a material effect on the Company's
ability to pay dividends.
 
                                       14
<PAGE>
                       SELECTED QUARTERLY FINANCIAL DATA
 
    The  following  tables  set  forth  the  Company's  unaudited   consolidated
financial  data regarding operations for the first two quarters of 1996 and each
quarter of  1995 and  1994.  This information,  in  the opinion  of  management,
includes  all  normal  recurring  adjustments  necessary  to  state  fairly  the
information set forth therein:
<TABLE>
<CAPTION>
                                                                          1996 QUARTER ENDED (UNAUDITED)
                                                                --------------------------------------------------
                                                                                            JUNE 30      MAR. 31
                                                                                          -----------  -----------
                                                                           (AMOUNTS IN THOUSANDS EXCEPT
                                                                                PER SHARE AMOUNTS)
<S>                                                             <C>          <C>          <C>          <C>
Interest income...............................................                            $     3,315  $     3,165
Interest expense..............................................                                  1,359        1,266
                                                                                          -----------  -----------
Net interest income...........................................                                  1,956        1,899
Provision for loan losses.....................................                                     45           45
                                                                                          -----------  -----------
Net interest income after provision for loan losses...........                                  1,911        1,854
Non-interest income...........................................                                    719          680
Non-interest expenses.........................................                                  2,042        2,017
                                                                                          -----------  -----------
Income before provision for income taxes......................                                    588          517
Provision for income taxes....................................                                    140          140
                                                                                          -----------  -----------
Net income....................................................                            $       448  $       377
                                                                                          -----------  -----------
                                                                                          -----------  -----------
Weighted average number of shares outstanding (1).............                              2,269,517    2,266,834
Net income per share (1)......................................                            $      0.19  $      0.17
 
<CAPTION>
 
                                                                          1995 QUARTER ENDED (UNAUDITED)
                                                                --------------------------------------------------
                                                                  DEC. 31     SEPT. 30      JUNE 30      MAR. 31
                                                                -----------  -----------  -----------  -----------
<S>                                                             <C>          <C>          <C>          <C>
Interest income...............................................  $     3,049  $     3,000  $     3,024  $     2,884
Interest expense..............................................        1,167        1,106        1,101        1,047
                                                                -----------  -----------  -----------  -----------
Net interest income...........................................        1,882        1,894        1,923        1,837
Provision for loan losses.....................................           20           45           50           45
                                                                -----------  -----------  -----------  -----------
Net income after provision for loan losses....................        1,862        1,849        1,873        1,792
Non-interest income...........................................          664          540          569          471
Non-interest expenses.........................................        1,783        1,717        1,878        1,745
                                                                -----------  -----------  -----------  -----------
Income before provision for income taxes......................          743          672          564          518
Provision for income taxes....................................           75          235          147          176
                                                                -----------  -----------  -----------  -----------
Net income....................................................  $       668  $       437  $       417  $       342
                                                                -----------  -----------  -----------  -----------
                                                                -----------  -----------  -----------  -----------
Weighted average number of shares outstanding (1).............    2,239,670    2,181,050    2,180,990    2,180,980
Net income per share..........................................  $      0.29  $      0.19  $      0.19  $      0.16
<CAPTION>
 
                                                                          1994 QUARTER ENDED (UNAUDITED)
                                                                --------------------------------------------------
                                                                  DEC. 31     SEPT. 30      JUNE 30      MAR. 31
                                                                -----------  -----------  -----------  -----------
<S>                                                             <C>          <C>          <C>          <C>
Interest income...............................................  $     2,656  $     2,654  $     2,524  $     2,369
Interest expense..............................................          920          803          737          674
                                                                -----------  -----------  -----------  -----------
Net interest income...........................................        1,736        1,851        1,787        1,695
Provision for loan losses.....................................           20           60           60           60
                                                                -----------  -----------  -----------  -----------
Net interest income after provision for loan losses...........        1,716        1,791        1,727        1,635
Non-interest income...........................................          327          515          543          575
Non-interest expenses.........................................        1,322        1,678        1,699        1,693
                                                                -----------  -----------  -----------  -----------
Income before provision for income taxes......................          721          628          571          517
Provision for income taxes....................................          190          198          198          176
                                                                -----------  -----------  -----------  -----------
Net income....................................................  $       531  $       430  $       373  $       341
                                                                -----------  -----------  -----------  -----------
                                                                -----------  -----------  -----------  -----------
Weighted average number of shares outstanding (1).............    2,180,763    2,123,519    2,123,495    2,123,456
Net income per share (1)......................................  $      0.23  $      0.20  $      0.18  $      0.16
</TABLE>
 
- ------------------------------
(1)  Per share data has been adjusted for a 50% stock dividend paid in  January,
     1996,  and  a 100%  stock dividend  paid in  August, 1994.  Excludes shares
     issued to the Security Bank  Holding Company Employee Stock Ownership  Plan
     which  are  not  yet  allocated  to employees  and  are  pledged  to secure
     repayment of notes to the Company. See "Management -- Other Benefit Plans."
 
                                       15
<PAGE>
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
FOR THE SIX MONTHS ENDED JUNE 30, 1996 AND 1995, AND
 THE YEARS ENDED DECEMBER 31, 1995 AND 1994.
 
    The  following summary financial data and the discussion and analysis should
be read  in  conjunction with  the  Company's unaudited  consolidated  financial
statements  and the notes thereto for the  six month periods ended June 30, 1996
and 1995,  and  its audited  consolidated  financial statements  and  the  notes
thereto  for the years  ended December 31,  1995 and 1994  included elsewhere in
this Prospectus. The results of operations for the Company in future periods may
be affected by  many factors,  including the  results of  operations of  Lincoln
Security,  which is not expected to  contribute significantly to the earnings of
the Company during the next twelve months, and economic and demographic  changes
in  the Company's market areas. See "Business  -- Lincoln Security Bank" and "--
Economic  Conditions  and  Demographics."  All  references  the  "Bank"  in  the
following discussion are references to Security Bank.
 
RESULTS OF OPERATIONS
 
    The  operating  results of  the Bank  depend primarily  on its  net interest
income. The  Bank's net  interest  income is  determined  by its  interest  rate
spread,  the relative  amounts of  interest-earning assets  and interest-bearing
liabilities,  and  the  degree  of  mismatch  in  the  maturity  and   repricing
characteristics of its interest-earning assets and interest-bearing liabilities.
Interest  rate  spread  is  the  difference between  the  yields  earned  on its
interest-earning assets and the rates paid on its interest-bearing  liabilities.
The  Bank's net income is  also affected by the  establishment of provisions for
loan losses and  the level  of its other  income, including  service charges  on
deposit  accounts and sold real estate loan  fees, as well as its other expenses
and income tax provisions.
 
                           SUMMARY INCOME STATEMENTS
                             (DOLLARS IN THOUSANDS)
<TABLE>
<CAPTION>
                                                                                              INCREASE (DECREASE)
                                                                                 ---------------------------------------------
                                                                                                                     AS A
                                                                                           IN DOLLARS             PERCENTAGE
                                                                                 ------------------------------  -------------
                                 SIX MONTHS   SIX MONTHS     YEAR       YEAR       SIX MONTHS      YEAR ENDED     SIX MONTHS
                                    ENDED        ENDED       ENDED      ENDED      ENDED 6/30         12/31       ENDED 6/30
                                   6/30/96      6/30/95    12/31/95   12/31/94    1996 TO 1995    1995 TO 1994   1996 TO 1995
                                 -----------  -----------  ---------  ---------  ---------------  -------------  -------------
<S>                              <C>          <C>          <C>        <C>        <C>              <C>            <C>
Interest income................   $   6,480    $   5,908   $  11,957  $  10,203     $     572       $   1,754          9.68%
Interest expense...............       2,625        2,148       4,421      3,134           477           1,287         22.21%
                                 -----------  -----------  ---------  ---------         -----     -------------  -------------
  Net interest income before
   provision for loan losses...       3,855        3,760       7,536      7,069            95             467          2.53%
Provision for loan losses......          90           95         160        200            (5)            (40)        (5.26)%
                                 -----------  -----------  ---------  ---------         -----     -------------  -------------
  Net interest income after
   provision for loan losses...       3,765        3,665       7,376      6,869           100             507          2.73%
Non-interest income............       1,399        1,040       2,244      1,961           359             283         34.52%
Non-interest expense...........       4,059        3,623       7,123      6,393           436             730         12.03%
                                 -----------  -----------  ---------  ---------         -----     -------------  -------------
  Income before provision for
   income taxes................       1,105        1,082       2,497      2,437            23              60          2.13%
Provision for income taxes.....         280          323         633        762           (43)           (129)       (13.31)%
                                 -----------  -----------  ---------  ---------         -----     -------------  -------------
  Net income...................   $     825    $     759   $   1,864  $   1,675     $      66       $     189          8.70%
                                 -----------  -----------  ---------  ---------         -----     -------------  -------------
                                 -----------  -----------  ---------  ---------         -----     -------------  -------------
 
<CAPTION>
 
                                  YEAR ENDED
                                     12/31
                                 1995 TO 1994
                                 -------------
<S>                              <C>
Interest income................       17.19%
Interest expense...............       41.07%
                                 -------------
  Net interest income before
   provision for loan losses...        6.61%
Provision for loan losses......      (20.00)%
                                 -------------
  Net interest income after
   provision for loan losses...        7.38%
Non-interest income............       14.43%
Non-interest expense...........       11.42%
                                 -------------
  Income before provision for
   income taxes................        2.46%
Provision for income taxes.....      (16.93)%
                                 -------------
  Net income...................       11.28%
                                 -------------
                                 -------------
</TABLE>
 
FOR THE SIX MONTHS ENDED JUNE 30, 1996 AND 1995
 
    GENERAL.  As shown in the table above, net income increased to $825,000  for
the six months ended June 30, 1996 from $759,000 for the same period of 1995, an
8.70%  increase. The increase in both  interest expense and non-interest expense
were more than offset by increases in interest income
 
                                       16
<PAGE>
and non-interest income. The increase in net income is mostly attributable to  a
lower  provision for income taxes  in the six month  period ended June 30, 1996,
over the same  period in 1995,  as a result  of overpayment of  income taxes  in
1995.
 
    NET  INTEREST INCOME.   Net  interest income  before the  provision for loan
losses increased $95,000 or 2.53%  for the six months  ended June 30, 1996  over
same  period in  1995. The increase  in interest  income was primarily  due to a
$17.9 million or 13.22% increase in average interest-earning assets for the  six
months  ended June 30, 1996 over the  same period in 1995. The largest component
of the  increase in  earning assets  was an  increase in  investment  securities
volume  of $12.1 million, which accounted for  $386,000 of the total increase in
interest income. The increase  in loans and other  earning asset volume of  $5.8
million  for the first  six months of 1996  compared to the  same period in 1995
resulted in an  increase in interest  income of $261,000.  The yield on  earning
assets decreased to 8.51% for the six months ended June 30, 1996, from 8.81% for
the  same  period in  1995.  This decrease  in  yield accounted  for  a $107,000
decrease in interest income. The remaining  $32,000 of the increase in  interest
income was due to one additional day in the six month period ended June 30, 1996
over  the  same period  in  1995. Interest-bearing  liabilities  increased $14.0
million or 12.06% for the six months  ended June 30, 1996, compared to the  same
period  in 1995. The volume  increase accounted for $345,000  of the increase in
interest expense. The  rate on interest-bearing  liabilities increased to  4.05%
for the six months ended June 30, 1996, compared to 3.72% for the same period in
1995.  This  increase in  rate  accounted for  a  $121,000 increase  in interest
expense. The remaining $12,000  of the increase in  interest expense was due  to
one  additional day in  the six month period  ended June 30,  1996 over the same
period in 1995.
 
    PROVISION FOR LOAN  LOSSES.  The  loan loss provision  during the six  month
period ended June 30, 1996, was $90,000 and $95,000 for the same period in 1995.
Net  charge-offs during the six-month periods were $94,000 and ($3,000) for 1996
and 1995, respectively.
 
    Management believes the loan loss  provision maintains the reserve for  loan
losses  at an appropriate level.  The reserve for loan  losses was $1,059,000 at
June 30, 1996, as compared to $1,115,000  at June 30, 1995. The Bank's ratio  of
reserve  for loan losses to total loans was  1.27% at June 30, 1996, compared to
1.42% at June 30, 1995.
 
    Non-performing assets (defined as  loans on non-accrual  status, 90 days  or
more  past due, and other real estate  owned) were $483,000 and $200,000 at June
30, 1996  and  1995, respectively.  The  increase in  non-performing  assets  is
attributable  to small number  of non-performing loans  secured by single family
residential real estate.  Management believes the  loans are adequately  secured
and  that no  significant losses will  be incurred. Management  does not believe
that the increase represents a deterioration  of the credit quality of the  loan
portfolio or an indication of future credit problems.
 
    NON-INTEREST  INCOME.  Non-interest income increased 34.52% in the first six
months of  1996  as  compared to  the  same  period in  1995.  The  increase  in
non-interest  income is due in  large part to fees  generated by the origination
and sale of mortgage loans. Mortgage loan originations were $28.4 million in the
first six months of  1996, up from  $11.3 million for the  same period in  1995.
Loans sold were $29.6 million and $11.1 million for the first six months of 1996
and  1995, respectively, generating  $484,000 and $242,000  of fee income during
each respective period,  an increase  of 100.00%. Security  Bank has  benefitted
from  mortgage refinancing  transactions that  have been  motivated by favorable
interest rates. Although the Bank will continue to originate and sell loans into
the secondary market,  there is no  assurance that the  favorable interest  rate
environment  will continue or that mortgage  lending operations will continue to
significantly contribute to the net income of the Bank.
 
    NON-INTEREST EXPENSE.   Non-interest expense increased  12.03% in the  first
six  months  of 1996  compared  to the  first six  months  of 1995.  The primary
non-interest expenses are salaries and employee benefits, and expenses  relating
to  occupancy  and equipment.  Salaries  and employee  benefits  were up  due to
increased staff levels  in the commercial  loan department and  the Eugene  loan
production office which opened in November, 1995.
 
                                       17
<PAGE>
FOR THE YEARS ENDED DECEMBER 31, 1995 AND 1994.
 
    GENERAL.   Net income increased to $1.9  million for the year ended December
31, 1995 from $1.7 million for the  same period in 1994, a 11.28% increase.  The
combined increases in interest income and non-interest income exceeded increases
in interest expense and non-interest expense.
 
    NET  INTEREST INCOME.   Net  interest income  before the  provision for loan
losses increased $0.5 million or 6.61% for the year ended December 31, 1995 over
the same period in 1994. The increase  resulted from a $1.8 million increase  in
interest  income  offset by  a $1.3  million increase  in interest  expense. The
increase in interest income is due  primarily to an increase in average  earning
assets of $13.4 million or 10.91% for the year ended December 31, 1995, over the
same period in 1994. Although loans and investments continued to increase during
the year of 1995, new deposits at prevailing interest rates limited the increase
in  the net interest income.  Interest expense increased due  to both volume and
rate for  the comparable  periods in  1995 over  1994. Average  interest-bearing
liabilities  increased $11.5 million  or 10.91% for the  year ended December 31,
1995, compared to the  same period in 1994.  The weighted average yields  earned
were  8.75%  and  8.28%  for  the  years  ended  December  31,  1995  and  1994,
respectively. Average yields earned increased 47  basis points or 5.68% for  the
year  ended December 31, 1995 compared to the same period in 1994. Average rates
paid were  3.79% and  2.98% for  the years  ended December  31, 1995  and  1994,
respectively.  This represents an increase of 81  basis points or 27.18% for the
year ended December 31, 1995, compared to 1994.
 
    PROVISION FOR LOAN  LOSSES.  The  loan loss provision  decreased during  the
year  ended December 31, 1995, to $160,000  as compared to $200,000 for the same
period in 1994. Net charge-offs during  the years were $114,000 and $92,000  for
1995  and 1994, respectively. The loan loss provision decreased between 1994 and
1995 as a result of an improvement in  the local economy and the quality of  the
loan portfolio.
 
    Management  believes the loan loss provision  maintains the reserve for loan
losses at an appropriate  level. The reserve for  loan losses was $1,063,000  at
December  31, 1995, as compared  to $1,017,000 at December  31, 1994. The Bank's
ratio of reserve for loan losses to total loans was 1.32% at December 31,  1995,
compared to 1.35% at December 31, 1994.
 
    Non-performing  assets (defined as loans 90 days or more past due, and other
real estate owned)  were $467,000  and $64,000 at  December 31,  1995 and  1994,
respectively.  The increase in non-performing assets  is attributable to a small
number of non-performing loans secured by single family residential real estate.
Management believes the  loans are  adequately secured and  that no  significant
losses  will  be  incurred.  Management  does  not  believe  that  the  increase
represents a deterioration  of the credit  quality of the  loan portfolio or  an
indication of future credit problems.
 
    NON-INTEREST  INCOME.   Non-interest  income increased  14.43% for  the year
ended December 31, 1995 as compared to  the same period in 1994. Gains on  sales
of  investment  securities available  for sale  of $13,000  in 1995  compared to
losses of $168,000  in 1994,  accounted for  more than  60% of  the increase  in
non-interest   income.  The  other  significant   portion  of  the  increase  in
non-interest income was  a result of  increased income from  service charges  on
deposit  accounts which were $910,000  in 1995, compared to  $847,000 in 1994, a
7.42% increase. Mortgage loan originations were $32.1 million in the year  ended
December 31, 1995, up from $20.1 million for the same period in 1994. Loans sold
were  $30.9 million and $22.5 million for  the years ended December 31, 1995 and
1994, respectively, generating $611,000 and  $628,000 of fee income during  each
respective  period, a  decrease of  2.7% from 1994  to 1995.  A strong refinance
market supported mortgage origination activity.
 
    NON-INTEREST EXPENSE.   Non-interest expense increased  11.42% for the  year
ended  December  31, 1995,  as compared  to  year ended  December 31,  1994. The
primary non-interest expenses are salaries  and employee benefits, and  expenses
relating to occupancy and equipment.
 
    PROVISION FOR INCOME TAXES.  The provision for income taxes decreased 16.93%
for  the year ended  December 31, 1995 as  compared to the  same period in 1994.
This was the result of an over-payment of taxes in 1994.
 
                                       18
<PAGE>
LOAN LOSSES AND RECOVERIES
 
    The provision for loan losses charged  to operating expense is based on  the
Bank's  loan loss experience  and such factors  which, in management's judgment,
deserve recognition in estimating possible loan losses. Management monitors  the
loan  portfolio to ensure that the reserve  for loan losses is adequate to cover
outstanding loans on non-accrual  status and any current  loans deemed to be  in
serious  doubt  of  repayment  according  to  each  loan's  repayment  plan. The
following table summarizes the  Bank's reserve for  loan losses, and  charge-off
and recovery activity:
 
<TABLE>
<CAPTION>
                                                                     SIX MONTHS       YEAR ENDED DECEMBER 31,
                                                                       ENDED       ------------------------------
                                                                   JUNE 30, 1996        1995            1994
                                                                   --------------  --------------  --------------
<S>                                                                <C>             <C>             <C>
Loans outstanding at end of period...............................  $   83,198,749  $   80,743,626  $   75,103,857
                                                                   --------------  --------------  --------------
                                                                   --------------  --------------  --------------
Average loans outstanding during period..........................  $   80,611,985  $   77,922,578  $   67,716,356
                                                                   --------------  --------------  --------------
                                                                   --------------  --------------  --------------
Reserve balance beginning of period..............................  $    1,062,993  $    1,016,770  $      909,131
Recoveries:
  Commercial.....................................................           2,900              --              --
  Real estate....................................................              --              --              --
  Installment....................................................          10,047          64,715          54,460
  Credit card....................................................           1,031           6,666           1,817
                                                                   --------------  --------------  --------------
                                                                           13,978          71,381          56,277
Loans Charged off:
  Commercial.....................................................         (11,457)             --              --
  Real estate....................................................              --              --              --
  Installment....................................................         (72,448)       (156,017)       (128,548)
  Credit card....................................................         (24,330)        (29,141)        (20,090)
                                                                   --------------  --------------  --------------
                                                                   $     (108,235) $     (185,158) $     (148,638)
                                                                   --------------  --------------  --------------
Net loans (charged off) recovered................................         (94,257)       (113,777)        (92,361)
Provision charged to operations..................................          90,000         160,000         200,000
                                                                   --------------  --------------  --------------
Reserve balance, end of period...................................  $    1,058,736  $    1,062,993  $    1,016,770
                                                                   --------------  --------------  --------------
                                                                   --------------  --------------  --------------
Ratio of net loans charged off to average loans outstanding......           (0.12)%          (0.15)%          (0.14)%
                                                                   --------------  --------------  --------------
                                                                   --------------  --------------  --------------
</TABLE>
 
LENDING AND CREDIT MANAGEMENT
 
    Although  a risk  of nonpayment  exists with  respect to  all loans, certain
specific types of risks are associated with different types of loans. Due to the
nature of the Bank's customer base and the growth experienced in Coos and  Curry
Counties,  real estate is frequently a  material component of collateral for the
Bank's loans. The expected source of  repayment of these loans is generally  the
operations  of  the  borrower's business  or  personal income,  but  real estate
provides an additional measure  of security. Risks  associated with real  estate
loans include fluctuating land values, local economic conditions, changes in tax
policies, and a concentration of loans within a limited geographic market area.
 
    The  Bank mitigates risk on construction loans by generally lending funds to
customers that have been pre-qualified for long term financing and who are using
contractors acceptable to the Bank. The  commercial real estate risk is  further
mitigated   by  making  the   majority  of  commercial   real  estate  loans  on
owner-occupied properties.
 
    The Bank  manages  the general  risks  inherent  in the  loan  portfolio  by
following loan policies and underwriting practices designed to result in prudent
lending  activities. For example, the Bank limits commercial loans to 70% of the
value of the collateral, and residential mortgages, which may be first or second
liens, to 80% of the value of the collateral.
 
                                       19
<PAGE>
    The following  table presents  information  with respect  to  non-performing
assets:
 
<TABLE>
<CAPTION>
                                                                                                DECEMBER 31,
                                                                               JUNE 30,    ----------------------
                                                                                 1996         1995        1994
                                                                              -----------  -----------  ---------
<S>                                                                           <C>          <C>          <C>
Loans on non-accrual status.................................................  $   483,000  $   432,000  $  --
Loans past due greater than 90 days but not on non-accrual status...........      --           --          21,000
Other real estate owned, net................................................      --            35,000     43,000
                                                                              -----------  -----------  ---------
Total non-performing assets.................................................  $   483,000  $   467,000  $  64,000
                                                                              -----------  -----------  ---------
                                                                              -----------  -----------  ---------
Percentage of non-performing assets to total assets.........................         0.28%        0.29%      0.04%
</TABLE>
 
    Interest  income which would  have been realized  on non-accrual or past-due
loans if they had remained current was insignificant.
 
ALLOCATION OF RESERVE FOR LOAN LOSSES
 
    The Bank does not normally allocate the reserve for loan losses to  specific
loan  categories with  the exception  of credit  cards. An  allocation by credit
quality is made below  for presentation purposes.  This allocation process  does
not  necessarily measure anticipated  future credit losses;  rather, it seeks to
measure the  Bank's assessment  at a  point  in time  of perceived  credit  loss
exposure and the impact of current and anticipated economic conditions.
 
<TABLE>
<CAPTION>
                                      JUNE 30,                                DECEMBER 31,
                             --------------------------  ------------------------------------------------------
                                            PERCENT OF                  PERCENT OF                  PERCENT OF
                                 1996       TOTAL LOANS      1995       TOTAL LOANS      1994       TOTAL LOANS
                             -------------  -----------  -------------  -----------  -------------  -----------
<S>                          <C>            <C>          <C>            <C>          <C>            <C>
Unclassified loans.........  $     590,037      94.62%   $     668,847      94.80%   $     852,536      96.20%
Letters of credit..........          1,833        .38%           2,542       0.53%        --            --
Credit cards...............         38,466       2.31%          38,511       2.39%          33,091       2.20%
Watchlist..................         82,000        .83%          85,900       0.81%          18,748       0.50%
Substandard................        289,300       1.77%         225,400       1.42%          50,996       0.45%
Doubtful...................         57,100        .09%          41,793       0.05%           6,399       0.01%
Specific-reserve...........       --            --            --            --              55,000       0.64%
                             -------------  -----------  -------------  -----------  -------------  -----------
                             $   1,058,736     100.00%   $   1,062,993     100.00%   $   1,016,770     100.00%
                             -------------  -----------  -------------  -----------  -------------  -----------
                             -------------  -----------  -------------  -----------  -------------  -----------
</TABLE>
 
                                       20
<PAGE>
ANALYSIS OF NET INTEREST INCOME
 
    The    following   table   presents    information   regarding   yields   on
interest-earning assets, expense or interest-bearing liabilities, and net yields
on interest-earning  assets  for the  periods  indicated (amounts  in  thousands
except percentages):
<TABLE>
<CAPTION>
ANALYSIS FOR THE SIX MONTHS ENDED                                                            INCREASE
JUNE 30, 1996 AND 1995                                               1996         1995      (DECREASE)     CHANGE
- ----------------------------------------------------------------  -----------  -----------  -----------  -----------
<S>                                                               <C>          <C>          <C>          <C>
Average interest-earning assets.................................  $   153,119  $   135,235   $  17,884       13.22%
Average interest-bearing liabilities............................  $   130,445  $   116,403      14,042       12.06%
Average yields earned (1).......................................         8.51%        8.81%      (0.30)%     (3.41)%
Average rates paid (1)..........................................         4.05%        3.72%      (0.33)%      8.87%
                                                                  -----------  -----------  -----------
Net interest spread (1).........................................         4.46%        5.09%      (0.63)%    (12.38)%
                                                                  -----------  -----------  -----------
                                                                  -----------  -----------  -----------
Net interest income to average interest-earning assets (1)......         5.06%        5.61%      (0.55)%     (9.80)%
                                                                  -----------  -----------  -----------
                                                                  -----------  -----------  -----------
 
<CAPTION>
 
ANALYSIS FOR THE YEARS ENDED                                                                 INCREASE
DECEMBER 31, 1995 AND 1994                                           1995         1994      (DECREASE)     CHANGE
- ----------------------------------------------------------------  -----------  -----------  -----------  -----------
<S>                                                               <C>          <C>          <C>          <C>
Average interest-earning assets.................................  $   136,688  $   123,246   $  13,442       10.91%
Average interest-bearing liabilities............................  $   116,803  $   105,318   $  11,485       10.91%
Average yields earned...........................................         8.75%        8.28%       0.47%       5.68%
Average rates paid..............................................         3.79%        2.98%       0.81%      27.18%
                                                                  -----------  -----------  -----------
Net interest spread.............................................         4.96%        5.30%      (0.34)%     (6.42)%
                                                                  -----------  -----------  -----------
                                                                  -----------  -----------  -----------
Net interest income to average interest-earning
 assets.........................................................        5.51%        5.74%       (0.23)%     (4.01)%
                                                                  -----------  -----------  -----------
                                                                  -----------  -----------  -----------
</TABLE>
 
- ------------------------
(1)  Annualized
 
                                       21
<PAGE>
ANALYSIS OF CHANGES IN INTEREST DIFFERENTIAL
 
    The  following table sets forth the dollar amount of the increase (decrease)
in the Company's consolidated  interest income and  expense and attributes  such
dollar  amounts to changes  in volume as  well as changes  in rates. Rate/volume
variances which were  immaterial have  been allocated equally  between rate  and
volume changes.
 
<TABLE>
<CAPTION>
                                                                    SIX MONTHS ENDED JUNE 30, 1996 OVER 1995
                                                                -------------------------------------------------
                                                                                       AMOUNT OF CHANGE
                                                                   TOTAL                ATTRIBUTED TO
                                                                 INCREASE    ------------------------------------
                                                                (DECREASE)     VOLUME         RATE        DAYS
                                                                -----------  -----------  ------------  ---------
<S>                                                             <C>          <C>          <C>           <C>
Interest income:
  Federal funds sold..........................................  $    60,517  $    66,754  $     (6,338) $     101
  Time deposits -- domestic financial institutions............      (22,375)     (24,587)        2,021        191
  Investment securities -- taxable............................      288,334      321,091       (39,368)     6,611
  Investment securities -- exempt from federal income
   taxes (1)..................................................       35,162       65,058       (32,513)     2,617
  Loans, net and mortgage loans held for sale.................      130,100      177,266       (69,341)    22,175
  Net investment in direct financing leases...................       69,824       45,069        24,206        549
  Federal Home Loan Bank stock................................       11,103       (3,200)       13,996        307
                                                                -----------  -----------  ------------  ---------
    Total interest income.....................................  $   572,665  $   647,451  $   (107,337) $  32,551
                                                                -----------  -----------  ------------  ---------
                                                                -----------  -----------  ------------  ---------
Interest expense:
  Interest on deposits:
    Interest-bearing demand...................................  $    12,469  $     8,711  $      3,569  $     189
    NOW accounts..............................................      (16,699)      (4,434)      (12,970)       705
    Money market accounts.....................................       79,097       41,590        36,364      1,143
    Savings accounts..........................................       (7,353)     (10,861)        2,406      1,102
    Time deposits.............................................      364,969      222,061       136,770      6,138
  Securities sold under agreement to repurchase...............       (1,372)       2,592        (4,413)       449
  ESOP debt...................................................       (6,532)      (4,181)       (2,536)       185
  Short term borrowings.......................................            6          (60)            5         61
  Federal Home Loan Bank borrowings...........................       52,950       89,611       (38,523)     1,862
                                                                -----------  -----------  ------------  ---------
    Total interest expense....................................  $   477,535  $   345,029  $    120,672  $  11,834
                                                                -----------  -----------  ------------  ---------
Net interest income...........................................  $    95,130  $   302,422  $   (228,009) $  20,717
                                                                -----------  -----------  ------------  ---------
                                                                -----------  -----------  ------------  ---------
</TABLE>
 
- ------------------------
(1) Interest income from investment securities exempt from federal income tax is
    not reported on a tax equivalent basis.
 
                                       22
<PAGE>
 
<TABLE>
<CAPTION>
                                                                          YEAR ENDED DECEMBER 31, 1995 OVER 1994
                                                                        ------------------------------------------
                                                                                            AMOUNT OF CHANGE
                                                                            TOTAL             ATTRIBUTED TO
                                                                          INCREASE     ---------------------------
                                                                         (DECREASE)       VOLUME          RATE
                                                                        -------------  -------------  ------------
<S>                                                                     <C>            <C>            <C>
Interest income:
  Federal funds sold..................................................  $      28,846  $      (5,275) $     34,121
  Time deposits -- domestic financial institutions....................        (16,590)       (26,241)        9,651
  Investment securities -- taxable....................................         78,937         22,184        56,753
  Investment securities -- exempt from federal income taxes(1)........        120,561        136,777       (16,216)
  Loans, net and mortgage loans held for sale.........................      1,408,733      1,021,244       387,489
  Net investment in direct financing leases...........................        112,603         90,912        21,691
  Federal Home Loan Bank stock........................................         20,628         23,315        (2,687)
                                                                        -------------  -------------  ------------
    Total interest income.............................................  $   1,753,718  $   1,262,916  $    490,802
                                                                        -------------  -------------  ------------
                                                                        -------------  -------------  ------------
Interest expense:
  Interest on deposits:
    Interest-bearing demand...........................................  $      11,310  $      (5,606) $     16,916
    NOW accounts......................................................          3,828            603         3,225
    Money market......................................................        105,217         13,090        92,127
    Savings...........................................................        (12,237)       (26,602)       14,365
    Time deposits.....................................................        840,409        369,246       471,163
  Securities sold under agreement to repurchase.......................         47,402          6,181        41,221
  ESOP debt...........................................................         22,435         (3,981)       26,416
  Short-term borrowings...............................................          7,185            427         6,758
  Federal Home Loan Bank borrowings...................................        261,193        144,977       116,216
                                                                        -------------  -------------  ------------
    Total interest expense............................................  $   1,286,742  $     498,335  $    788,407
                                                                        -------------  -------------  ------------
                                                                        -------------  -------------  ------------
Net interest income...................................................  $     466,976  $     764,581  $   (297,605)
                                                                        -------------  -------------  ------------
                                                                        -------------  -------------  ------------
</TABLE>
 
- ------------------------
(1) Interest income from investment securities exempt from federal income tax is
    not reported on a tax equivalent basis.
 
                                       23
<PAGE>
                             SUMMARY BALANCE SHEETS
                             (DOLLARS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                                        INCREASE (DECREASE)
                                                                      --------------------------------------------------------
                                                                              IN DOLLARS                AS A PERCENTAGE
                                                                      --------------------------  ----------------------------
                                      6/30/96   12/31/95   12/31/94   1995 TO 1996  1995 TO 1994  1995 TO 1996   1995 TO 1994
                                     ---------  ---------  ---------  ------------  ------------  -------------  -------------
<S>                                  <C>        <C>        <C>        <C>           <C>           <C>            <C>
ASSETS
  Federal funds sold...............  $     741  $   3,084  $   1,058   $   (2,343)   $    2,026       (75.97)%       191.49%
  Investments securities, net......     70,028     58,228     53,860       11,800         4,368        20.27%          8.11%
  Loans and leases, net............     85,622     83,069     75,973        2,553         7,096         3.07%          9.34%
  Other earning assets.............      2,124      2,044      3,213           80        (1,169)        3.91%         36.38%
                                     ---------  ---------  ---------  ------------  ------------      ------     -------------
    Total earning assets...........    158,515    146,425    134,104       12,090        12,321         8.26%          9.19%
  Other assets.....................     11,553     12,163     11,467         (610)          696        (5.02)%         6.07%
                                     ---------  ---------  ---------  ------------  ------------      ------     -------------
    Total assets...................  $ 170,068  $ 158,588  $ 145,571   $   11,480    $   13,017         7.24%          8.94%
                                     ---------  ---------  ---------  ------------  ------------      ------     -------------
                                     ---------  ---------  ---------  ------------  ------------      ------     -------------
LIABILITIES AND SHAREHOLDERS'
 EQUITY
  Non-interest bearing deposits....  $  19,506  $  19,492  $  18,469   $       14    $    1,023         0.07%          5.54%
  Interest bearing deposits........    114,295    107,798    102,649        6,497         5,149         6.03%          5.02%
  Federal Home Loan Bank
   borrowings......................     13,720     11,500      8,786        2,220         2,714        19.30%         30.89%
  Other liabilities................      7,695      5,426      5,038        2,269           388        41.82%          7.70%
                                     ---------  ---------  ---------  ------------  ------------      ------     -------------
    Total liabilities..............    155,216    144,216    134,942       11,000         9,274         7.63%          6.87%
  Minority interest in
   subsidiary......................        963     --         --              963        --              N/A            N/A
  Equity...........................     13,889     14,372     10,629         (483)        3,743        (3.36)%        35.21%
                                     ---------  ---------  ---------  ------------  ------------      ------     -------------
    Total liabilities and
     shareholders' equity..........  $ 170,068  $ 158,588  $ 145,571   $   11,480    $   13,017         7.24%          8.94%
                                     ---------  ---------  ---------  ------------  ------------      ------     -------------
                                     ---------  ---------  ---------  ------------  ------------      ------     -------------
</TABLE>
 
FINANCIAL CONDITION
 
    As  shown in the table above, total assets have continued to grow in 1996 as
compared to  the  prior periods.  Assets  have grown  7.24%  at June  30,  1996,
compared  to December 31, 1995, and 8.94% from December 31, 1994 to December 31,
1995. The growth in 1996 is the result of increased deposits which were invested
in investment securities.  The growth in  both 1996 and  1995 was primarily  the
result  of  loan demand,  as  the southern  Oregon  coast's growth  and economic
factors continue  to  be favorable.  The  ratio of  gross  loans and  leases  to
deposits  decreased to 64.89% at  June 30, 1996, compared  to 66.22% at December
31, 1995, and 63.70% at December 31, 1994.
 
    The growth in interest-earning  assets has been  predominantly in loans  and
investment  securities. Net loans  increased $7.1 million  at December 31, 1995,
over the same period in 1994, and increased $2.6 million from December 31, 1995,
to June 30, 1996. The lower, more  stable interest rate environment of the  last
two years and a stronger, more stable local economy have been major contributors
to  the increased  activity for  the year  ended December  31, 1995.  The modest
decline in net loans at June 30,  1996, from December 31, 1995, is  attributable
to  a rise in  interest rates which slowed  loan activity. Investment securities
increased $4.4 million as of December 31,  1995, as compared to the same  period
in  1994  and an  additional  $11.8 million  as  of June  30,  1996, due  to the
continued growth in deposit funds available for investment. Federal funds  sold,
reflecting  short  term (over-night)  investments,  increased at  the comparable
period-end time  frames.  The  level  of federal  funds  sold  fluctuates  daily
relative  to  loan demand,  deposit  fluctuations and  investment  activity, and
provides a source of liquidity for the Bank.
 
    Deposit growth continued for the years ended December 31, 1995 and 1994, and
for the six months ended June 30, 1996. Total deposits increased $6.5 million at
June 30, 1996, compared to December 31,  1995, and $6.2 million at December  31,
1995,  compared  to December  31, 1994.  The growth  in 1996  and 1995  has been
predominantly  in  interest-bearing  deposits.  The  ratio  of  interest-bearing
deposits  to total deposits decreased slightly  from 84.8% at December 31, 1994,
to 84.7% at December 31, 1995, and was 85.4% at June 30, 1996.
 
    The Bank  is  a member  of  the Federal  Home  Loan Bank  of  Seattle.  This
membership  allows  the Bank  access to  low  cost, long-term  funding otherwise
unavailable. The Bank has utilized this funding,
 
                                       24
<PAGE>
and in 1995 borrowed $2.7 million to support loan and investment growth. In  the
six  months  ended June  30,  1996, the  Bank  has borrowed  an  additional $2.2
million, leaving the balance at $13.7 million as of June 30, 1996.
 
LIQUIDITY
 
    Liquidity enables the Bank to meet the withdrawals of its depositors and the
borrowing needs of its loan customers. The Bank maintains its liquidity position
through maintenance of cash resources and a stable core deposit base. A  further
source  of liquidity is the  Bank's ability to borrow  funds. The Bank maintains
three unsecured lines of credit totaling $10.0 million for the purchase of funds
on an overnight basis. The Bank is also  a member of the Federal Home Loan  Bank
which  provides a  secured line of  credit in  the amount of  $25.2 million, and
other funding opportunities  for liquidity and  asset/ liability matching.  Over
the  past three years  these lines have  been used periodically.  As of June 30,
1996, $0.7 million were borrowed under the Bank's unsecured lines of credit  and
$13.7  million were  borrowed from  the Federal  Home Loan  Bank. Interest rates
charged on the lines are determined by market factors.
 
    The Bank's liquidity has been stable and adequate over the past three years.
Short-term deposits have continued to grow and excess investible cash is  loaned
on  a short term basis (federal funds  sold). The Bank's primary source of funds
is consumer deposits  and commercial accounts.  These funds are  not subject  to
significant  movements as a result of changing interest rates and other economic
factors, and therefore enhance the Bank's long term liquidity.
 
CAPITAL RESOURCES
 
    Beginning in 1990, federal regulators required the calculation of Risk-based
Capital. This is an  analysis that weights balance  sheet and off-balance  sheet
items  for their  inherent risk.  It requires  minimum standards  for Risk-based
Capital by Capital Tier.  Full implementation of this  analysis was required  in
1992,  requiring a minimum total Risk-based Capital ratio of 8.00% and a minimum
Tier 1 Capital Ratio of 4.00%. At June 30, 1996, Security Bank had a  Risk-based
Capital Ratio of 14.31% and Tier 1 Capital Ratio of 13.34%. This was compared to
13.36% and 12.36% for total Risk-Based Capital and Tier 1 Capital, respectively,
at  December 31, 1995,  and 12.10% and  11.11% for total  Risk-Based Capital and
Tier 1  Capital, respectively,  at December  31, 1994.  If the  Bank were  fully
leveraged,  further growth would  be restricted to  the level attainable through
generation and retention of net income  unless the Bank were to seek  additional
capital from outside sources.
 
INTEREST SENSITIVITY
 
    Interest sensitivity relates to the effect of changing interest rates on net
interest  income. Interest-earning assets  which have interest  rates tied to an
index, such as prime rate, or which  mature in relatively short periods of  time
are   considered  interest-rate  sensitive.  Interest-bearing  liabilities  with
interest rates that can be re-priced in a discretionary manner, or which  mature
in  short  periods of  time, are  also  considered interest-rate  sensitive. The
differences   between   the   amounts    of   interest-sensitive   assets    and
interest-sensitive  liabilities, measured at various  time periods, are referred
to as  sensitivity  gaps.  As rates  change,  these  gaps will  cause  either  a
beneficial or adverse effect on net interest income. A negative gap represents a
beneficial  effect on net interest  income if rates were  to fall and an adverse
effect if rates were to rise. Conversely, a positive gap would have a beneficial
effect on net interest income in a rising rate environment and a negative effect
if rates fell.
 
    At June  30, 1996,  rate  sensitive liabilities  maturing or  available  for
repricing within a one-year period of time approximated rate sensitive assets.
 
    Due to the uncertainty of changing interest rates, the Bank's strategy is to
manage  a majority of its  interest-earning assets and interest-bearing deposits
to mature or reprice within one year and  strive for as close to a balanced  gap
as  is feasible. Management considers a fluctuation between a 10.0% positive gap
and a 10.0% negative gap  within one year to be  a controlled gap position.  The
Bank's liability sensitivity within one year has been favorable because interest
rates  have generally  declined in recent  periods. In the  event interest rates
rise, the Bank's  strategy is  to increase its  asset sensitivity  predominantly
through variable asset pricing.
 
                                       25
<PAGE>
                        ESTIMATED MATURITY OR REPRICING
                                 JUNE 30, 1996
 
<TABLE>
<CAPTION>
                                                                     THREE
                                                                   MONTHS TO
                                                    LESS THAN        LESS         ONE TO        OVER
                                                   THREE MONTHS  THAN ONE YEAR  FIVE YEARS   FIVE YEARS       TOTAL
                                                   ------------  -------------  -----------  -----------  -------------
<S>                                                <C>           <C>            <C>          <C>          <C>
INTEREST EARNING ASSETS:
  Securities and investments (1).................  $  8,219,358   $16,239,982   $29,662,413  $18,878,903  $  73,000,656
  Federal funds sold.............................       740,774             0             0            0        740,774
  Loans..........................................    30,605,331    16,100,140    29,104,829    7,239,580     83,049,880
  Leases.........................................       173,427       519,089     2,364,298      574,088      3,630,902
                                                   ------------  -------------  -----------  -----------  -------------
    Total interest earning assets................  $ 39,738,890   $32,859,211   $61,131,540  $26,692,533    160,422,212
                                                   ------------  -------------  -----------  -----------
                                                   ------------  -------------  -----------  -----------
  Unrealized gains on securities available for
   sale..........................................                                                              (848,538)
  Reserve for loan losses........................                                                            (1,058,736)
  Cash and due from banks........................                                                             4,454,948
  Other assets...................................                                                             7,098,365
                                                                                                          -------------
    Total assets.................................                                                         $ 170,068,251
                                                                                                          -------------
                                                                                                          -------------
INTEREST BEARING LIABILITIES
  Interest bearing demand accounts...............     2,741,564             0             0            0      2,741,564
  Savings/time deposits (2)......................    44,770,991    21,736,686    23,061,307   21,984,309    111,553,293
  Borrowed funds.................................     9,386,560    10,720,500             0            0     20,107,060
                                                   ------------  -------------  -----------  -----------  -------------
    Total interest bearing liabilities...........  $ 56,899,115   $32,457,186   $23,061,307  $21,984,109    134,401,717
                                                   ------------  -------------  -----------  -----------
                                                   ------------  -------------  -----------  -----------
  Non-interest bearing demand accounts...........                                                            19,506,213
  Other liabilities..............................                                                             1,308,170
  Minority interest in subsidiary................                                                               962,702
  Shareholders' equity...........................                                                            13,889,249
                                                                                                          -------------
    Total liabilities & shareholders' equity.....                                                         $ 170,068,251
                                                                                                          -------------
                                                                                                          -------------
  Interest sensitivity gap.......................  $(17,160,225)  $   402,025   $38,070,233  $ 4,708,424  $  26,020,457
  Cumulative interest sensitivity gap............  $(17,160,225)  $(16,758,200) $21,312,033  $26,020,457
  Cumulative interest sensitivity gap as a
   percentage of total assets....................        (10.09)%        (9.85)%      12.53%      15.30%
</TABLE>
 
- ------------------------------
(1)  The  portion  of this  section  relating to  mortgage-backed  securities is
     presented based upon  estimated cash flows,  maturities and/or  repricings,
     and includes Collateralized Mortgage Obligations.
 
(2)  The  portion  of this  section  relating to  savings  and NOW  accounts are
     presented as repricings within the  earliest period presented and  adjusted
     for  decay rates as provided  by the Federal Home  Loan Bank of Seattle and
     are based  upon  industry experience  of  institutions located  within  the
     FHLB's 12th district.
 
INFLATION
 
    The  primary impact  of inflation on  the Company's  operations is increased
asset yields,  deposit  costs and  operating  overhead. Unlike  most  industrial
companies,   virtually  all  of  the  assets  and  liabilities  of  a  financial
institution are monetary in nature. As a result, interest rates generally have a
more significant  impact  on  a financial  institution's  performance  than  the
effects  of  general  levels  of  inflation.  Although  interest  rates  do  not
necessarily move in the same  direction or to the same  extent as the prices  of
goods  and services, increases in inflation generally have resulted in increased
interest rates. The effects of inflation  can magnify the growth of assets,  and
if significant, would require that equity capital increase at a faster rate than
would otherwise be necessary.
 
                                       26
<PAGE>
INVESTMENT PORTFOLIO
 
    The  following  table shows  the amortized  costs, estimated  market values,
unrealized gains and unrealized losses of the Company's portfolio of investments
as of June 30, 1996, and December 31, 1995 and 1994:
<TABLE>
<CAPTION>
JUNE 30, 1996:                                                         ESTIMATED      UNREALIZED     UNREALIZED
AVAILABLE FOR SALE                                   AMORTIZED COST   MARKET VALUE       GAINS         LOSSES
- ---------------------------------------------------  --------------  --------------  -------------  -------------
<S>                                                  <C>             <C>             <C>            <C>
U.S. Government & federal agencies.................  $   15,043,238  $   14,665,358  $      11,260  $     389,140
Mortgage-backed securities.........................      30,298,756      29,758,717         19,335        559,374
United States Treasury.............................       1,993,956       2,015,620         21,664       --
Corporate obligations..............................       5,253,424       5,212,562         14,337         55,199
Obligations of state and political subdivisions....      17,303,072      17,626,351        452,962        129,683
U.S. federal securities mutual bond funds..........         984,550         749,850       --              234,700
                                                     --------------  --------------  -------------  -------------
    Total available for sale.......................  $   70,876,996  $   70,028,458  $     519,558  $   1,368,096
                                                     --------------  --------------  -------------  -------------
                                                     --------------  --------------  -------------  -------------
 
<CAPTION>
 
1995 AVAILABLE FOR SALE
- ---------------------------------------------------
<S>                                                  <C>             <C>             <C>            <C>
U.S. Government and federal agencies...............  $    4,050,026  $    4,124,050  $      74,024  $    --
Mortgage-backed securities.........................      19,832,982      20,120,370        305,801         18,413
United States Treasury.............................       6,008,416       6,110,595        111,216          9,037
Corporate obligations..............................       9,605,693       9,566,990         63,764        102,467
Obligations of state and political subdivisions....      16,461,146      17,368,220        914,907          7,833
U.S. federal securities mutual bond funds..........         984,550         937,350       --               47,200
                                                     --------------  --------------  -------------  -------------
    Total available for sale.......................  $   56,942,813  $   58,227,575  $   1,469,712  $     184,950
                                                     --------------  --------------  -------------  -------------
                                                     --------------  --------------  -------------  -------------
<CAPTION>
 
1994 AVAILABLE FOR SALE
- ---------------------------------------------------
<S>                                                  <C>             <C>             <C>            <C>
U.S. Government and federal agencies...............  $      499,701  $      499,215  $    --        $         486
Mortgage-backed securities.........................       1,698,229       1,578,227          3,231        123,233
United States Treasury.............................       6,051,604       5,850,290         10,404        211,718
Corporate obligations..............................      15,861,574      15,292,099         21,768        591,243
U.S. federal securities mutual bond funds..........       1,740,818       1,365,637       --              375,181
                                                     --------------  --------------  -------------  -------------
    Total available for sale.......................  $   25,851,926  $   24,585,468  $      35,403  $   1,301,861
                                                     --------------  --------------  -------------  -------------
                                                     --------------  --------------  -------------  -------------
<CAPTION>
 
1994 HELD TO MATURITY
- ---------------------------------------------------
<S>                                                  <C>             <C>             <C>            <C>
U.S. Government and federal agencies...............  $    1,063,647  $    1,021,250  $    --        $      42,397
Mortgage-backed securities.........................      10,005,308       9,407,067       --              598,241
United States Treasury.............................       1,990,889       1,921,560       --               69,329
Corporate obligations..............................         514,605         501,585       --               13,020
Obligations of state and political subdivisions....      15,700,243      15,819,038        348,475        229,680
                                                     --------------  --------------  -------------  -------------
    Total held to maturity.........................  $   29,274,692  $   28,670,500  $     348,475  $     952,667
                                                     --------------  --------------  -------------  -------------
                                                     --------------  --------------  -------------  -------------
</TABLE>
 
                                       27
<PAGE>
    The following  is  a summary  of  the contractual  maturities  and  weighted
average yields of investment securities classified as available for sale at June
30, 1996:
 
                               AVAILABLE FOR SALE
 
<TABLE>
<CAPTION>
                                                                                                        WEIGHTED
                                                                                         ESTIMATED       AVERAGE
                                                                       AMORTIZED COST   MARKET VALUE    YIELD (1)
                                                                       --------------  --------------  -----------
<S>                                                                    <C>             <C>             <C>
U.S. GOVERNMENT AND FEDERAL AGENCIES
  One year or less...................................................  $      485,436  $      485,436     5.6196%
  After one year through five years..................................      11,057,802      10,739,937     6.8278%
  After five years through ten years.................................       3,500,000       3,439,985       6.94%
                                                                       --------------  --------------
    Total............................................................  $   15,043,238  $   14,665,358       6.45%
                                                                       --------------  --------------
                                                                       --------------  --------------
MORTGAGE-BACKED SECURITIES
  After one year through five years..................................  $    1,410,156  $    1,404,117       6.14%
  After five years through ten years.................................       5,393,015       5,327,185       6.67%
  After ten years....................................................      23,495,585      23,027,415       6.59%
                                                                       --------------  --------------
    Total                                                              $   30,298,756  $   29,758,717       6.59%
                                                                       --------------  --------------
                                                                       --------------  --------------
UNITED STATES TREASURY
  One year or less...................................................  $     --        $     --            --
  After one year through five years..................................       1,993,956       2,015,620       6.93%
                                                                       --------------  --------------
    Total............................................................  $    1,993,956  $    2,015,620       6.93%
                                                                       --------------  --------------
                                                                       --------------  --------------
CORPORATE OBLIGATIONS
  One year or less...................................................  $    1,658,571  $    1,651,494       6.64%
  After one year through five years..................................       3,594,853       3,561,068       6.38%
                                                                       --------------  --------------
    Total............................................................  $    5,253,424  $    5,212,562       6.47%
                                                                       --------------  --------------
                                                                       --------------  --------------
OBLIGATIONS OF STATE AND POLITICAL SUBDIVISIONS
  One year or less...................................................  $      622,720  $      627,893       5.43%
  After one year through five years..................................       4,518,018       4,641,751       5.82%
  After five years through ten years.................................       6,326,561       6,531,971       6.09%
  After ten years....................................................       5,835,773       5,824,736       5.64%
                                                                       --------------  --------------
    Total............................................................  $   17,303,072  $   17,626,351       5.84%
                                                                       --------------  --------------
                                                                       --------------  --------------
U.S. FEDERAL SECURITIES MUTUAL BOND FUNDS
  One year or less...................................................  $      984,550  $      749,850       5.40%
                                                                       --------------  --------------
    Total............................................................  $      984,550  $      749,850       5.40%
                                                                       --------------  --------------
                                                                       --------------  --------------
  Total securities available for sale................................  $   70,876,996  $   70,028,458       6.36%
                                                                       --------------  --------------
                                                                       --------------  --------------
</TABLE>
 
- ------------------------
(1) Yields  on tax-exempt  securities have not  been stated  on a tax-equivalent
    basis.
 
    As of June 30, 1996,  the Company had no  securities classified as "held  to
maturity".
 
LOAN PORTFOLIO
 
    Interest  earned on the loan  portfolio is the primary  source of income for
the Bank.  Net loans  represented  48% of  total assets  as  of June  30,  1996.
Although  the Bank strives  to serve the  credit needs of  its service area, its
primary  focus  is  on  real  estate  and  commercial  loans.  The  Bank   makes
substantially  all of its  loans to customers located  within the Bank's service
areas. The Bank  has no loans  defined as highly  leveraged transactions by  the
Federal Reserve Bank. The Bank has no significant agricultural loans. Commercial
real estate loans include owner-occupied commercial
 
                                       28
<PAGE>
properties occupied by the proprietor of the business conducted on the premises,
and income-producing or farm properties. The primary risks of such loans include
loss of income of the owner or occupier of the property and the inability of the
market  to sustain  rent levels.  The Bank's  underwriting standards  attempt to
mitigate these  risks by  requiring  a minimum  of  three consecutive  years  of
sufficient income generation from the owner or occupier or rental incomes of 1.2
times  the  combined debt  service, insurance  and taxes.  In addition,  the 70%
loan-to-value ratio  limitation is  expected  to provide  sufficient  protection
against  unforeseen  circumstances.  Other  commercial  loans  include renewable
operating lines  of credit,  short-term notes,  and equipment  financing.  These
types  of loans  are principally  at risk  due to  insufficient business income.
Accordingly, the Bank  does not lend  to start-up businesses  or others  lacking
operating  history, and  requires personal  guarantees and  secondary sources of
repayment. Residential real estate loans include 1-4 family owner- or  non-owner
occupied residences, multi-family units, construction and secondary market loans
pending  sale. Generally, the risk associated with such loans is the loss of the
borrower's income. The Bank attempts to mitigate the risk by thorough review  of
the borrower's credit and employment history, and limits the loan-to-value ratio
to  80% to  provide protection  in the  event of  foreclosure. Installment loans
consist of  personal, automobile  or home  equity loans.  The Bank  also  offers
credit  cards to its customers. These unsecured loans carry significantly higher
interest rates than  secured loans,  and the Bank,  therefore, maintains  strict
credit  guidelines  when  considering  loan  applications.  The  following table
presents the composition of the Bank's loan portfolio, at the dates indicated:
 
<TABLE>
<CAPTION>
                                                                                            DECEMBER 31,
                                                                                   ------------------------------
                                                                   JUNE 30, 1996        1995            1994
                                                                   --------------  --------------  --------------
<S>                                                                <C>             <C>             <C>
Commercial -- real estate........................................  $   15,331,267  $   16,627,336  $   15,980,024
Commercial -- lines of credit....................................      24,159,920      23,164,048      20,610,333
Residential -- real estate.......................................      20,338,719      19,231,938      19,964,705
Installment......................................................      20,309,155      18,662,005      15,669,788
Credit cards & other.............................................       3,059,688       3,058,299       2,879,007
                                                                   --------------  --------------  --------------
    Total loans..................................................      83,198,749      80,743,626      75,103,857
Deferred loan fees, net..........................................        (148,869)       (153,203)       (165,084)
Reserve for loan losses..........................................      (1,058,736)     (1,062,993)     (1,016,770)
                                                                   --------------  --------------  --------------
    Net loans....................................................  $   81,991,144  $   79,527,430  $   73,922,003
                                                                   --------------  --------------  --------------
                                                                   --------------  --------------  --------------
</TABLE>
 
    At June 30, 1996, the maturities of all loans by category were as follows:
 
<TABLE>
<CAPTION>
                                                    WITHIN ONE     ONE TO FIVE      AFTER FIVE
                                                       YEAR           YEARS           YEARS           TOTAL
                                                  --------------  --------------  --------------  --------------
<S>                                               <C>             <C>             <C>             <C>
Commercial -- real estate.......................  $    7,603,120  $    5,109,493  $    2,618,654  $   15,331,267
Commercial -- lines of credit...................      18,943,112       3,720,507       1,496,301      24,159,920
Residential -- real estate......................       9,537,814       1,917,715       8,883,190      20,338,719
Installment.....................................       1,652,805      10,821,868       7,834,482      20,309,155
Credit cards & other............................       2,975,859          83,829        --             3,059,688
                                                  --------------  --------------  --------------  --------------
                                                  $   40,712,710  $   21,653,412  $   20,832,627  $   83,198,749
                                                  --------------  --------------  --------------  --------------
                                                  --------------  --------------  --------------  --------------
</TABLE>
 
    Of loans with maturities  of one year or  more, $31,393,348 were  fixed-rate
loans, and $11,092,691 were variable rate loans.
 
                                       29
<PAGE>
DEPOSIT LIABILITIES
 
    The  following table sets forth the average deposit liabilities of and rates
paid by the Bank for the periods indicated:
 
<TABLE>
<CAPTION>
                                                                                  YEARS ENDED DECEMBER 31,
                                                                  --------------------------------------------------------
                                      SIX MONTHS ENDED JUNE 30,
                                                1996                         1995                         1994
                                     ---------------------------  ---------------------------  ---------------------------
                                        AMOUNT       RATE PAID       AMOUNT       RATE PAID       AMOUNT       RATE PAID
                                     -------------  ------------  -------------  ------------  -------------  ------------
<S>                                  <C>            <C>           <C>            <C>           <C>            <C>
Deposits Liabilities
  Demand...........................  $  18,327,838         n/a    $  18,180,478         n/a    $  17,295,202         n/a
  Interest-bearing demand..........      2,270,451        4.14%       1,711,356        4.01%       1,896,760        3.02%
  NOW accounts.....................     21,415,977        1.04%      22,634,967        1.18%      22,583,425        1.17%
  Money market accounts............     16,612,349        3.47%      14,712,696        3.23%      14,209,254        2.60%
  Savings accounts.................     15,561,738        2.49%      16,345,241        2.52%      17,441,123        2.43%
  Time deposits....................     56,391,647        5.27%      47,691,652        5.01%      38,504,909        4.02%
                                     -------------       -----    -------------       -----    -------------       -----
    Total deposits.................  $ 130,580,000        3.26%   $ 121,276,390        2.98%   $ 111,930,673        2.38%
                                     -------------                -------------                -------------
                                     -------------                -------------                -------------
</TABLE>
 
    As of June 30, 1996, the  Bank's time deposit liabilities had the  following
times remaining to maturity:
 
<TABLE>
<CAPTION>
                                                               TIME DEPOSITS OF                 ALL OTHER
                                                             $100,000 OR MORE (1)           TIME DEPOSITS (2)
                                                          ---------------------------  ---------------------------
<S>                                                       <C>             <C>          <C>             <C>
Remaining Time to Maturity
3 months or less........................................  $   14,713,122      73.33%   $   11,666,199      30.54%
6 months................................................       2,383,025      11.88%        7,627,396      19.97%
12 months...............................................       1,840,726       9.17%        7,682,018      20.11%
Over 1 year.............................................       1,128,315       5.62%       11,222,114      29.38%
                                                          --------------  -----------  --------------  -----------
    Total...............................................  $   20,065,188     100.00%   $   38,197,727     100.00%
                                                          --------------               --------------
                                                          --------------               --------------
</TABLE>
 
- ------------------------
(1) Time  deposits of $100,000 or more represent  15.00% of total deposits as of
    June 30, 1996.
 
(2) All other time deposits  represent 28.55% of total  deposits as of June  30,
    1996.
 
AVERAGE BALANCES AND AVERAGE RATES EARNED AND PAID
 
    The  tables  on  the following  pages  present, for  the  periods indicated,
information regarding average balances  of assets and  liabilities of the  Bank,
the total dollar amounts of interest income from average interest-earning assets
and  interest  expense  on interest-bearing  liabilities,  the  average interest
yields earned  or rates  paid, net  interest income,  net interest  spread  (the
difference  between the average yield earned  on interest-earning assets and the
average rate  paid  on  interest-bearing  liabilities), and  the  ratio  of  net
interest income to average earning assets. The table does not reflect any effect
of income taxes. All average balances are based on month-end balances.
 
                                       30
<PAGE>
The  following table  presents the Company's  average balance sheets  as well as
certain yield earned and rates paid for  the six months ended June 30, 1996  and
1995:
<TABLE>
<CAPTION>
                                                                                            SIX MONTHS ENDED JUNE 30,
                                                      SIX MONTHS ENDED JUNE 30, 1996                  1995
                                                 -----------------------------------------  -------------------------
                                                    AVERAGE                 AVERAGE YIELD      AVERAGE
                                                    BALANCE      INTEREST    OR RATES (1)      BALANCE      INTEREST
                                                 -------------  ----------  --------------  -------------  ----------
<S>                                              <C>            <C>         <C>             <C>            <C>
ASSETS
  Federal funds sold...........................  $   2,911,036  $   78,859         5.45%    $     628,457  $   18,432
  Time deposits -- domestic financial
   institutions................................        433,750      12,327         5.72%        1,464,558      34,702
  Investment securities -- taxable.............     46,209,564   1,488,136         6.48%       36,396,789   1,199,802
  Investment securities -- exempt from federal
   income taxes................................     18,849,944     510,099         5.44%       16,544,788     474,937
  Loans, net and mortgage loans held for sale
   at cost (2)(3)..............................     79,531,299   4,154,819        10.51%       75,986,743   4,024,719
  Net investment in direct financing leases....      3,428,140     169,385         9.94%        2,357,488      99,561
  Federal Home Loan Bank stock, at cost........      1,754,840      66,786         7.65%        1,856,152      55,683
                                                 -------------  ----------                  -------------  ----------
    Total interest-earning assets/interest
     income .                                    $ 153,118,573  $6,480,411         8.51%    $ 135,234,975  $5,907,746
  Cash and due from banks......................      4,607,789                                  3,977,361
  Premises and equipment, net..................      3,234,772                                  3,341,749
  Other assets.................................      3,439,050                                  3,397,763
                                                 -------------                              -------------
    Total assets...............................  $ 164,400,184                              $ 145,951,848
                                                 -------------                              -------------
                                                 -------------                              -------------
LIABILITIES AND SHAREHOLDERS' EQUITY
  Interest-bearing demand......................  $   2,270,451  $   46,759         4.14%        1,807,593      34,290
  NOW accounts.................................     21,415,978     111,189         1.04%       22,120,426     127,888
  Money market accounts........................     16,612,349     286,515         3.47%       13,812,740     207,418
  Savings accounts.............................     15,561,738     192,650         2.49%       16,405,444     200,003
  Time deposits................................     56,391,647   1,478,901         5.27%       46,933,516   1,113,932
  Securities sold under agreements
   repurchase..................................      3,664,997      80,134         4.40%        3,542,993      81,506
  ESOP debt....................................        644,000      27,057         8.45%          733,000      33,589
  Short-term borrowings........................        426,643      11,007         5.19%          427,771      11,001
  Federal Home Loan Bank borrowings............     13,456,895     390,823         5.84%       10,619,303     337,873
                                                 -------------  ----------                  -------------  ----------
    Total interest-bearing liabilities/interest
     expense...................................  $ 130,444,698  $2,625,035         4.05%    $ 116,402,786  $2,147,500
  Demand deposits..............................     18,327,838                                 17,302,359
  Other liabilities............................      1,239,230                                    830,965
                                                 -------------                              -------------
    Total liabilities..........................    150,011,766                                134,536,110
  Minority Interest in subsidiary..............        168,637
  Shareholders' equity.........................     14,219,781                                 11,415,738
                                                 -------------                              -------------
    Total liabilities, minority interest and
     shareholders' equity......................  $ 164,400,184                              $ 145,951,848
                                                 -------------                              -------------
                                                 -------------                              -------------
  Net interest income..........................                 $3,855,376                                 $3,760,246
                                                                ----------                                 ----------
                                                                ----------                                 ----------
  Net interest spread..........................                                    4.46%
                                                                                  -----
                                                                                  -----
  Net interest income to earning assets........                                    5.06%
                                                                                  -----
                                                                                  -----
 
<CAPTION>
 
                                                 AVERAGE YIELD
                                                  OR RATES (1)
                                                 --------------
<S>                                              <C>
ASSETS
  Federal funds sold...........................         5.89%
  Time deposits -- domestic financial
   institutions................................         4.78%
  Investment securities -- taxable.............         6.65%
  Investment securities -- exempt from federal
   income taxes................................         5.79%
  Loans, net and mortgage loans held for sale
   at cost (2)(3)..............................        10.68%
  Net investment in direct financing leases....         8.52%
  Federal Home Loan Bank stock, at cost........         6.05%
 
    Total interest-earning assets/interest
     income .                                           8.81%
  Cash and due from banks......................
  Premises and equipment, net..................
  Other assets.................................
 
    Total assets...............................
 
LIABILITIES AND SHAREHOLDERS' EQUITY
  Interest-bearing demand......................         3.83%
  NOW accounts.................................         1.17%
  Money market accounts........................         3.03%
  Savings accounts.............................         2.46%
  Time deposits................................         4.79%
  Securities sold under agreements
   repurchase..................................         4.64%
  ESOP debt....................................         9.24%
  Short-term borrowings........................         5.19%
  Federal Home Loan Bank borrowings............         6.42%
 
    Total interest-bearing liabilities/interest
     expense...................................         3.72%
  Demand deposits..............................
  Other liabilities............................
 
    Total liabilities..........................
  Minority Interest in subsidiary..............
  Shareholders' equity.........................
 
    Total liabilities, minority interest and
     shareholders' equity......................
 
  Net interest income..........................
 
  Net interest spread..........................         5.09%
                                                       -----
                                                       -----
  Net interest income to earning assets........         5.61%
                                                       -----
                                                       -----
</TABLE>
 
- ------------------------
(1)  Annualized.
 
(2)  Average  non-accrual loans included in the computation of average loans for
     the six months  ended June 30,  1996 and 1995  were $478,000 and  $111,000,
     respectively.
 
(3)  Loan  related fees  recognized during  the period  ended June  30, 1996 and
     1995, included in the  yield calculation, totalled approximately  $233,182,
     and $216,020, respectively.
 
                                       31
<PAGE>
    The following table presents the Company's average balance sheets as well as
certain  yield earned and rates  paid for the years  ended December 31, 1995 and
1994:
 
<TABLE>
<CAPTION>
                                                      YEAR ENDED DECEMBER 31, 1995               YEAR ENDED DECEMBER 31, 1994
                                                -----------------------------------------  -----------------------------------------
                                                   AVERAGE                  AVERAGE YIELD     AVERAGE                  AVERAGE YIELD
                                                   BALANCE      INTEREST      OR RATES        BALANCE      INTEREST      OR RATES
                                                -------------  -----------  -------------  -------------  -----------  -------------
<S>                                             <C>            <C>          <C>            <C>            <C>          <C>
ASSETS
  Federal funds sold..........................  $   1,720,511  $   108,857        6.33%    $   1,841,942  $    80,011        4.34%
  Time deposits -- domestic financial
   institutions...............................      1,234,541       60,785        4.92%        1,868,082       77,375        4.14%
  Investment securities -- taxable............     36,397,912    2,340,964        6.43%       36,044,412    2,262,027        6.28%
  Investment securities -- exempt from federal
   income taxes...............................     16,207,389      971,872        6.00%       13,963,862      851,311        6.10%
  Loans, net and mortgage loans held for sale,
   at cost (1)(2).............................     76,834,887    8,127,412       10.58%       66,696,906    6,718,679       10.07%
  Net investment in direct financing leases...      2,763,330      247,626        8.96%        1,651,419      135,023        8.18%
  Federal Home Loan Bank stock, at cost.......      1,529,722       99,156        6.48%        1,179,524       78,528        6.66%
                                                -------------  -----------       -----     -------------  -----------
    Total interest-earning assets/interest
     income...................................    136,688,292  $11,956,672        8.75%      123,246,147  $10,202,954        8.28%
  Cash and due from banks.....................      4,648,940                                  4,768,695
  Premises and equipment, net.................      3,311,064                                  2,989,022
  Other assets................................      3,411,986                                  3,306,784
                                                -------------                              -------------
    Total assets..............................  $ 148,060,282                              $ 134,310,648
LIABILITIES AND SHAREHOLDERS' EQUITY
  Interest-bearing demand.....................  $   1,711,356  $    68,664        4.01%    $   1,896,760  $    57,354        3.02%
  NOW accounts................................     22,634,967      268,083        1.18%       22,583,425      264,255        1.17%
  Money market accounts.......................     14,712,696      474,658        3.23%       14,209,254      369,441        2.60%
  Savings accounts............................     16,345,841      411,371        2.52%       17,441,123      423,608        2.43%
  Time deposits...............................     47,691,652    2,388,050        5.01%       38,504,909    1,547,641        4.02%
  Securities sold under agreements to
   repurchase.................................      3,417,569      151,772        4.44%        3,226,484      104,370        3.23%
  ESOP debt...................................        728,367       62,731        8.61%          808,216       40,296        4.99%
  Short-term borrowings.......................        422,741       23,197        5.49%          411,765       16,012        3.89%
  Federal Home Loan Bank borrowings...........      9,137,987      572,669        6.27%        6,235,610      311,476        5.00%
                                                -------------  -----------                 -------------  -----------       -----
    Total interest-bearing
     liabilities/interest expense.............  $ 116,803,176  $ 4,421,195        3.79%    $ 105,317,546  $ 3,134,453        2.98%
  Demand deposits.............................     18,168,140                                 17,295,202
  Other liabilities...........................        977,111                                  1,612,013
                                                -------------                              -------------
    Total liabilities.........................    135,948,427                                124,224,761
  Shareholders' equity........................     12,111,855                                 10,085,887
                                                -------------                              -------------
    Total liabilities and shareholders'
     equity...................................  $ 148,060,282                              $ 134,310,648
                                                -------------                              -------------
                                                -------------                              -------------
  Net interest income.........................                 $ 7,535,477                                $ 7,068,501
                                                               -----------                                -----------
                                                               -----------                                -----------
  Net interest spread.........................                                    4.96%                                      5.30%
                                                                                 -----                                      -----
                                                                                 -----                                      -----
  Net interest income to earnings assets......                                    5.51%                                      5.74%
                                                                                 -----                                      -----
                                                                                 -----                                      -----
</TABLE>
 
- ------------------------
(1)  Average non-accrual loans included in the computation of average loans were
     $243,000 for 1995 and $172,000 for 1994.
 
(2)  Loan related fees recognized  during the period and  included in the  yield
     calculation, totaled approximately $392,667 in 1995 and $337,817 in 1994.
 
                                       32
<PAGE>
                                    BUSINESS
 
COMPANY
 
    The   Company,  incorporated  in  1981,  is  a  multi-bank  holding  company
registered under the Bank Holding Company Act of 1956. The administrative office
of the Company is located  in Coos Bay, Oregon. The  Company was organized as  a
holding  company for  its principal banking  subsidiary, Security  Bank, a state
chartered, FDIC insured commercial bank,  through a reorganization completed  in
April,  1983. The Company conducts its business primarily through Security Bank,
but has  recently embarked  on a  strategy to  diversify through  investment  in
banking  operations  outside  of  Security Bank's  primary  market  area through
wholly- and majority-owned subsidiaries. As  part of that strategy, the  Company
recently completed the acquisition of a controlling interest in Lincoln Security
Bank,  a  newly-organized state-chartered  commercial  bank located  in Newport,
Oregon.
 
    As a result  of the successful  operations of Security  Bank, the  Company's
return  on equity has exceeded 15% for the  past two years and return on average
assets was 1.26% in  1995 and 1.25%  in 1994, which figures  do not include  the
results  of operations of Lincoln Security which commenced operations on May 30,
1996. At June 30, 1996, total assets were $170.1 million, total loans were $80.6
million and deposits were $133.8 million.
 
SECURITY BANK
 
    Security Bank operated as a single office in Myrtle Point, Oregon, from  its
founding  in 1919 until  1971, when the  Coquille branch was  opened. The bank's
Bandon Branch was  opened in 1974.  In 1977, Security  Bank's fourth branch  was
opened  in the Bunker Hill area  of Coos Bay, and in  1983, the bank merged with
Citizens Bank of North Bend, acquiring its fifth branch in North Bend. In  1985,
the  sixth  branch  was opened  as  result of  the  purchase of  the  office and
assumption of  the deposits  of  a failed  institution in  the  Brookings-Harbor
community in Curry County. Also in 1985, Security Bank moved its headquarters to
downtown  Coos  Bay and  opened  its Coos  Bay  Mall branch.  Security Financial
Insurance Agency, a subsidiary  of Security Bank organized  in 1987, acts as  an
insurance  agent  selling  annuities,  whole  life  insurance,  and  health care
insurance. The Insurance  Agency operates  from a  single office  near the  head
office  of Security  Bank. Its  services are  available to  customers at  all of
Security Bank's branches. Security Bank  also operates a separate mortgage  loan
business  with an office in Coos Bay, and an office in Eugene, Oregon, opened in
1995.
 
    Security  Bank  operates  in  a  competitive  market  which  has   undergone
significant economic and demographic changes in the past two decades. During the
period  1979 to 1987, Coos and Curry Counties suffered the loss of large numbers
of jobs in  the forest products  industry. The  employment losses led  to a  10%
population  decline in Coos County from 1980 to 1987. This loss of manufacturing
workers and their families, together with an  influx of retirees as a result  of
the  attractiveness of the  southern Oregon coast as  a retirement location, has
led to a significant increase in the portion of the population age 65 and older.
The population over age 65  increased by one-third from 1980  to 1990 to 17%  of
Coos  County's total  population, and increased  by almost two-thirds  to 25% of
Curry County's  total population.  Curry County  has the  highest percentage  of
residents  over age 65  of any Oregon county.  At the same  time the economy has
shifted to a more diverse base of  activity, including a greater role for  small
businesses.
 
    The  most direct  competition faced by  Security Bank comes  from four large
commercial banks.  With the  recent acquisition  of Western  Bank by  Washington
Mutual  Bank, Security Bank has no  community bank competitors, but continues to
compete with multi-state, multi-billion dollar asset institutions. To meet  this
competition,  Security  Bank targets  its marketing  efforts on  individuals and
small businesses who  prefer personalized  banking services,  and is  developing
products  and services intended to meet the  banking needs of people who are age
55 or over.
 
    Security Bank has competed effectively in its current market areas. In  Coos
County,  Security Bank's principal market area, Security Bank held approximately
$109 million in individual,  partnership and corporate deposits  as of June  30,
1995, representing 18.63% of such deposits held by
 
                                       33
<PAGE>
commercial  bank, savings and loan association  and credit union offices located
in the county,  up from  13.76% in  1990. In  Curry County,  Security Bank  held
approximately  $12 million in individual,  partnership and corporate deposits as
of June 30, 1995, representing 5.20% of such deposits held by commercial banking
and savings association offices located in the county, up from 3.88% in 1990.
 
LINCOLN SECURITY BANK
 
    Lincoln Security Bank is a newly-organized Oregon state-chartered bank,  the
deposits  of which are insured by the  FDIC. Lincoln Security was organized by a
group of business and professional individuals  in the Lincoln County area as  a
locally  owned commercial  bank serving  the needs  of the  city of  Newport and
Lincoln County, Oregon. Lincoln Security's  principal office is located at  1250
North Coast Highway in Newport, Oregon. The bank commenced operations on May 30,
1996, and currently operates in a temporary office facility pending construction
of  its  permanent  office. Lincoln  Security  engages in  a  general commercial
banking business in  Lincoln County  and offers commercial  banking services  to
small  and medium  size businesses,  professionals and  retail customers  in the
bank's market area.
 
    The Company facilitated the organization  of Lincoln Security by  purchasing
210,390  shares  of  Lincoln  Security's  Class  B  common  stock,  representing
approximately 68.44% of all outstanding  common shares of Lincoln Security  Bank
common  stock, with the remainder of the  outstanding common stock held by local
investors in the bank's Class A common stock. The shares of Class A and Class  B
common  stock are identical in all respects, except that the Class A and Class B
common stock vote  as separate  classes in the  election of  directors with  the
Class  B shares being entitled to vote  for a number of directors constituting a
mere majority of the directors,  and the Class A  shares being entitled to  vote
for  the balance  of the  directors. Pursuant  to a  shareholders agreement, the
Class A  common shareholders,  under certain  circumstances, have  the right  to
purchase  all of the Class B common  stock of Lincoln Security owned by Security
Bank Holding Company, after five years but before 10 years following the date of
Lincoln Security's charter. Conversely, if  the Class A shareholders notify  the
Company  of their intent to exercise their  right to purchase the Class B common
stock, but  fail to  consummate the  purchase within  270 days  thereafter,  the
Company  has  the right,  but not  the obligation,  to acquire  all of  the then
outstanding shares of  Lincoln Security  Class A  common stock  in exchange  for
shares  of Company common  stock having an  aggregate market value  equal to the
value of the outstanding Lincoln Security Class A common stock as determined  by
an  appraisal process set forth in  the shareholders agreement. The Company does
not expect to receive dividends  on its shares of Class  B common stock for  the
foreseeable  future, as any earnings of the  bank are expected to be retained to
fund further growth of the bank.
 
    As a result of the ownership of a majority of Lincoln Security's outstanding
common stock,  the Company  will  be able  to  control any  corporate  decisions
requiring  approval of Lincoln Security shareholders. At this time, Mr. Brummel,
President and Chief Executive  Officer of the Company,  and Kenneth Messerle,  a
director  of  the Company,  are serving  on  the Board  of Directors  of Lincoln
Security, with  the balance  of  the Board  of  Directors being  Lincoln  County
residents.  The Company  believes that, like  Security Bank, the  success of the
bank depends on being identified as a local bank that knows and understands  the
needs  of  the community  it  serves. Accordingly,  the  Company believes  it is
important that Lincoln Security  have a majority of  its board members from  the
local  community  who are  familiar with  Lincoln  County and  are known  by the
potential customers  which the  bank seeks  to attract.  The presence  of  local
shareholders,  and  the  appointment  of  predominantly  local,  Lincoln  County
directors, are expected to help ensure that Lincoln Security Bank will have  the
same  community  commitment and  ties that  distinguish  Security Bank  from its
larger statewide  competitors.  Although  initially the  Company  has  only  two
representatives  on  the  bank's  board of  directors,  the  Company  expects to
continue to  influence  major  decisions  made by  the  board.  Further,  it  is
anticipated  that the  bank's management will  look to the  Company and Security
Bank  for  guidance  in  managing  the  administrative  affairs  of  the   bank.
Nonetheless, the Company expects to rely on Lincoln Security officers to oversee
day-to-day  operations  of  the  bank  without  significant  involvement  of the
Company.
 
                                       34
<PAGE>
BUSINESS STRATEGY
 
    The Company seeks to achieve growth in its earning assets, while maintaining
a strong return on equity. The  strategy for accomplishing those goals is  based
upon:
 
    - Personalized Customer Service
 
    - Development of Innovative Products
 
    - Expanding into new Geographic Markets
 
    PERSONALIZED  CUSTOMER  SERVICE.    The  Banks  pride  themselves  on  being
community banks  serving  the central  and  southern Oregon  coast.  The  Banks'
personnel  are  primarily  long-time  residents,  with  many  years  of  banking
experience  in  their  communities.  In  an  era  when  larger  competitors  are
minimizing  personnel expenses through the use of part-time tellers, centralized
loan centers, and electronic technology,  the Banks remain committed to  serving
customers  through personal service: loan officers  and other employees who know
and are known  by their customers.  From the  Boards of Directors,  who are  all
residents and active members of their respective communities, to branch tellers,
service  and accessibility are emphasized. To enhance customer service, Security
Bank provides  "platform  banking," which  gives  employees computer  access  to
customer records and allows them to respond to inquiries efficiently.
 
    To promote employee commitment to customer service, the Company maintains an
Employee Stock Ownership Plan in which all employees other than those of Lincoln
Security  are  eligible to  participate. The  Plan  enables employees  to become
shareholders of the Company and share a common interest with other shareholders.
Thus, employees'  efforts  to  improve  the  Company's  performance  provide  an
economic benefit to them through potential increases in the value of their share
ownership.  The  Company also  has established  a stock  option plan  for senior
management personnel. See "Management -- Other Benefit Plans."
 
    INNOVATIVE PRODUCTS.   The Company  seeks to increase  market share  through
innovative  products oriented  to the needs  of potential  customers. As Lincoln
Security is still in the initial  stages of business development, and  therefore
is  concentrating  on basic  services, these  innovative products  are currently
being marketed by Security Bank. Security Bank provides, for the population over
age fifty-five,  specially  designed deposit  and  insurance products,  such  as
tax-deferred  annuities and a certificate of  deposit which features a waiver of
early withdrawal penalties  in the event  the funds are  needed for health  care
expenses. To provide services which Security Bank does not provide directly, the
bank  partners with other organizations, exemplified by its arrangement with the
Bank of California to provide trust services. Security Bank provides  electronic
banking  services for those who desire it, and offers a telephone banking system
which  allows  customers  to  access   their  account  information  and   obtain
information  about bank  services by telephone,  24-hours a  day. During banking
hours, however, employees answer customer  telephone calls to maintain  personal
contact  rather than relying upon computerized answering services. Security Bank
also offers bank cards, allowing customers worldwide bank ATM network access.
 
    GEOGRAPHIC MARKET EXPANSION.  The Company is acting to diversify and  expand
its  asset base by moving outside of its traditional market areas without losing
the personal  service  and  community  focus which  differentiate  it  from  its
competitors.  For example,  Security Bank  has recently  opened a  mortgage loan
office in Eugene, Oregon,  and expects to open  offices in other communities  in
Oregon  in the future. Specific plans for  new offices have not been formulated,
and it is not known when, if any, such new offices may be opened.
 
    Prior to the organization  of Lincoln Security,  the Company had  considered
expanding  its  market geographically  through  acquisitions or  the  opening of
branch offices in  coastal communities north  of its existing  market area.  The
Company  believed, and continues to believe, however, that retaining a community
bank identity is crucial to Security Bank's and the Company's success, and  that
branching  beyond the  existing market would  pose some risk  to Security Bank's
image as a local bank. The
 
                                       35
<PAGE>
Company believed that organizing a new community bank in cooperation with  local
business  people  provided the  opportunity  for expansion  while  retaining the
benefits of being identified as a local community bank.
 
    The Company's investment in  Lincoln Security Bank is  a unique approach  to
partner  with  investors  in  a  new market  area,  and  reflects  the Company's
commitment to geographic market expansion. Management believes that the  Lincoln
Security Bank investment, if successful, can be a model for investments in other
community  banks.  The  Company  is  not  actively  pursuing  any  other similar
investments or acquisitions of other banks,  nor does the Company seek to  merge
with  any other bank holding companies. However, the Company will consider other
opportunities as they come available.
 
ECONOMIC CONDITIONS AND DEMOGRAPHICS
 
    The Banks  primarily receive  deposits and  make loans  in Coos,  Curry  and
Lincoln  Counties  of  Oregon.  As  community  banks,  the  Banks  have  certain
competitive advantages in their local focus, but the Banks are also more closely
tied to their respective local economies than competitors who serve a number  of
geographic markets.
 
COOS AND CURRY COUNTIES
 
    Coos  County  had  a  1993 population  of  approximately  62,500,  while the
population  of  Curry  County  was  approximately  21,300.  About  half  of  the
population  of each county  is in an urbanized  area, the Coos  Bay - North Bend
area in Coos County and the Brookings-Harbor area in Curry County.
 
    The economies  of Coos  and  Curry Counties  depend particularly  on  forest
products,  fishing,  agriculture  and  tourism. One  of  the  major  features of
economic developments  in both  counties over  the past  15 years  has been  the
reduction  in employment in the forest products  industry and the effects on the
local economy. Approximately three-quarters of the  land in the two counties  is
commercial  timberland, with 65% being privately owned in Coos County and 40% in
Curry County. The balance is federal and state forests.
 
    During the period 1979 to 1982, Coos County experienced a 17% decline in the
number of wage  and salary  jobs, with  half of  that decline  occurring in  the
forest  products industry.  The decline  in forest  products employment produced
high levels of unemployment and a decline in population. In the late 1980's  and
into  the 1990's, the population began growing again, and was up 3% from 1990 to
1992. Curry County, while also  suffering high unemployment, has recovered,  and
is  growing at faster  rate. The population  of Curry County  grew 10.5% between
1990 and  1992. Although  much improved  from the  highest levels  of the  early
1980's, unemployment remains above Oregon and U.S. averages in both counties.
 
    A significant change in the makeup of the population in the two counties has
occurred  with  the  emigration  of  working  families  and  the  immigration of
retirees, particularly into Curry County.  With these population shifts, a  high
percentage  of personal income comes from sources other than net earnings, 54.6%
in Curry County and 43.6% in Coos County in 1992, the latest data available.
 
    The result  of these  employment and  population changes  is a  shift to  an
economic  base which is  more stable and  less dependent on  the forest products
industry. The industry  remains an  important employment source,  but no  longer
dominates  the economy.  By the  end of  1993, five  times as  many persons were
employed in  non-manufacturing,  non-farm  jobs as  compared  to  manufacturing.
Retail  trade, government  and services are  the largest  employment segments in
both counties.  Tourism  has become  increasingly  important to  both  counties.
Agriculture,  although  a  small  industry in  terms  of  employment,  remains a
significant economic factor. Cranberries  and nursery stock  are major crops  in
Coos  County,  while southern  Curry County  is  part of  the largest  lily bulb
growing area of  the U.S. The  fishing industry in  Coos County, although  still
important,   has  contracted  significantly  since  1980,  particularly  due  to
reductions in salmon fishing.
 
                                       36
<PAGE>
LINCOLN COUNTY
 
    Lincoln County, the market  served by Lincoln Security  Bank, is located  on
the  central Oregon coast and  its economy is dependent  primarily on the forest
products and fishing industries, tourism  and service businesses. Over the  past
several  years, forest  products activity  has significantly  decreased and some
segments of  the  fisheries  industry  have  experienced  significant  declines.
However,  Lincoln  County is  less dependent  than Coos  or Curry  Counties upon
forest products manufacturing. Unemployment rates in Lincoln County have closely
paralleled those of Oregon as a whole, in contrast with Coos and Curry  Counties
where  they have  been significantly higher.  Offsetting the  decrease in forest
products and fisheries, tourism has emerged as a major industry for the  county.
Lincoln  County's relative proximity  to the population  centers of Portland and
the Willamette  Valley of  Oregon has  continued to  make it  a popular  weekend
vacation spot and retirement area. Lincoln County has also embarked on a program
to  promote diversification of its economic  base through a state-sponsored "Key
Industry Initiative" whereby each county selects three key industries to  target
for expansion of employment prospects in return for financial and other forms of
state  assistance.  Lincoln County  has selected  software and  high technology,
government contract work in research and development, and professional  services
as  its target industries. Total population of Lincoln County has increased from
35,350 in 1980  to 39,690  in 1992, approximately  a 12%  increase. This  modest
increase  belies the changing composition of the job market and economic base in
the county which has  shifted markedly during this  period. The State of  Oregon
Employment  Division forecasts  population for  Lincoln County  of approximately
47,500 by the year 2000, assuming the absence of major economic recessions which
might have a negative impact on  employment and population growth. As with  Coos
and  Curry Counties, a  significant portion of the  Lincoln County population is
over age 65.
 
COMPETITION
 
    The geographic areas of  Oregon served by the  Banks are highly  competitive
with  respect to  both deposits  and loans.  The Banks  compete principally with
commercial  banks,  savings  and  loan  associations,  credit  unions,  mortgage
companies,   and  other  financial  institutions.   The  major  commercial  bank
competitors  are   state-wide  institutions   which   are  among   the   largest
Oregon-headquartered  commercial and savings banks, and their deposits represent
59.6% of statewide commercial and savings bank deposits as of December 31, 1995.
Each of these competitors is owned by multi-state, multi-billion dollar  holding
companies.  These banks have the advantages of offering their customers services
and state-wide banking facilities that the Banks do not offer.
 
    The Banks' primary competition for  deposits comes from commercial banks,  a
savings  and loan  association, credit unions,  and money market  funds, some of
which may offer  higher rates than  the Banks. Secondary  competition for  funds
comes  from issuers of corporate and government securities, insurance companies,
mutual funds, and  other financial  intermediaries. Other than  with respect  to
large  certificates of  deposit, the  Banks compete  for deposits  by offering a
variety  of  deposit  accounts  at  rates  generally  competitive  with  similar
financial institutions in the area.
 
    The  Banks' competition for  loans comes principally  from commercial banks,
savings and loan associations, mortgage companies, finance companies,  insurance
companies,  and other institutional lenders. Many of the Banks' competitors have
substantially higher lending limits than those of the Banks, individually or  in
the  aggregate.  The Banks  compete for  loan origination  through the  level of
interest rates and  loan fees charged,  the variety of  commercial and  mortgage
loan products, and the efficiency and quality of services provided to borrowers.
Lending  activity can  also be affected  by the availability  of lendable funds,
local and national economic conditions,  current interest rate levels, and  loan
demand.  As described above, the Banks compete with their larger commercial bank
competitors by  emphasizing  their  community  bank  orientation  and  efficient
personal  service to local customers,  particularly local lending. See "Business
- -- Business Strategy."
 
    Lincoln County presents a particularly competitive market. Although  Lincoln
County is currently served by seven commercial banks, two thrifts and one credit
union,  many of which offer  more services and products  than offered by Lincoln
Security,  only  one   of  the  commercial   banks  has  its   head  office   in
 
                                       37
<PAGE>
Lincoln  County  and it  is  owned by  a  holding company  headquartered  in the
Portland metropolitan area. Further, in 1994,  a second community bank with  its
head office in Newport was acquired by a large multi-state bank holding company.
A  third community  bank previously headquartered  in Newport was  acquired by a
multi-state holding company in 1990. It is believed that the loss of these local
community banks presents  increased opportunities  for a new  community bank  to
compete effectively for business in this market area.
 
PROPERTIES
 
    COOS  BAY MALL FACILITY.  Security Bank's Mall Facility is located at 170 S.
Second Street, Coos Bay, Oregon, and  is registered on the national register  of
historic  places. The building and land are  owned by the bank. The Mall branch,
consumer lending  center,  Security  Financial Insurance  Agency  and  the  Data
Processing  center occupy the first  floor. The Company's administrative offices
occupy the second floor.
 
    MYRTLE POINT BRANCH.   Security Bank's original Main  Office was located  at
503  Spruce, Myrtle Point,  Oregon. The building  now serves as  a branch of the
bank, which owns the building and land.
 
    COQUILLE BRANCH.  The Coquille Branch of Security Bank is located at 479  N.
Central, Coquille, Oregon. The building and land are owned by the bank.
 
    BANDON  BRANCH.  The Bandon  Branch of Security Bank  is located at 1125 Hwy
101, Bandon, Oregon. The building and land are owned by the bank.
 
    BUNKER HILL BRANCH.  The Bunker Hill  Branch of Security Bank is located  at
900  Hwy 101  South, Coos Bay,  Oregon. The building  and land are  owned by the
bank. The bank's mortgage lending operation also has an office in this facility.
 
    NORTH BEND BRANCH.   The North Bend  Branch of Security  Bank is located  at
3451 Broadway in North Bend, Oregon. The building and land are leased. The lease
term  expires in 1998 and  has options for two  additional periods of five years
each.
 
    BROOKINGS-HARBOR BRANCH.   The Brookings-Harbor Branch  of Security Bank  is
located  at 16271 Hwy  101 South, Brookings,  Oregon. The building  and land are
leased. The lease expires in 2004.
 
    MORTGAGE LENDING  OFFICE.   Security  Bank  has a  mortgage  lending  office
located at 200 East 11th Avenue, Suite 14A, Eugene, Oregon. The office is leased
under  a lease agreement which expires October 14, 1996, and has options for two
additional one-year terms.
 
    LINCOLN SECURITY BANK.   Lincoln Security's principal  office is located  at
1250  North Coast Highway in  Newport, Oregon. The bank  currently operates in a
temporary  office  facility  pending  construction  of  its  permanent   office.
Construction  of the permanent facility is  being financed internally by Lincoln
Security. The office is  situated on land which  is leased from an  unaffiliated
third  party through January, 2011. The lease may be renewed by Lincoln Security
for two additional 10-year periods.
 
EMPLOYEES
 
    As of June 30,  1996, the Company  and its subsidiaries had  a total of  123
employees, 108 of whom are full-time equivalent employees. None of the employees
of  the Company or the  Banks are subject to  a collective bargaining agreement.
The Company and Banks considers their  relationships with their employees to  be
good.
 
LEGAL PROCEEDINGS
 
    The  Banks are from time to time a party to various legal actions arising in
the normal course of business. Management  believes that there is no  threatened
or  pending proceedings against  the Company or the  Banks, which, if determined
adversely, would have a material effect on the business or financial position of
the Company or the Banks.
 
                                       38
<PAGE>
                           SUPERVISION AND REGULATION
 
GENERAL
 
    The Company and the Banks are extensively regulated under federal and  state
law.  These  laws  and  regulations  are  intended  to  protect  depositors, not
shareholders. To the extent that  the following information describes  statutory
or  regulatory provisions, it is  qualified in its entirety  by reference to the
particular statutory or regulatory provisions. Any change in applicable laws  or
regulations  may have  a material  effect on the  business and  prospects of the
Company and  the Banks.  The operations  of the  Company and  the Banks  may  be
affected  by  legislative  changes and  by  the policies  of  various regulatory
authorities. The Company is unable  to predict the nature  or the extent of  the
effects  on its business and earnings that fiscal or monetary policies, economic
control or new federal or state legislation may have in the future.
 
FEDERAL BANK HOLDING COMPANY REGULATION
 
    The Company is a bank holding company within the meaning of the Bank Holding
Company Act ("BHCA"), and as such, it is subject to regulation, supervision  and
examination  by the Board  of Governors of the  Federal Reserve System ("Federal
Reserve"). The  Company is  required to  file annual  reports with  the  Federal
Reserve  and to provide  the Federal Reserve such  additional information as the
Federal Reserve may require.
 
    BHCA requires every bank holding company to obtain the prior approval of the
Federal Reserve  before  (i) acquiring,  directly  or indirectly,  ownership  or
control  of any voting shares of another  bank or bank holding company it, after
such acquisition, would own or  control more than 5%  of such shares (unless  it
already  owns or controls  the majority of  such shares); (ii)  acquiring all or
substantially all of  the assets  of another bank  or bank  holding company;  or
(iii)  merging or consolidating  with another bank  holding company. The Federal
Reserve will not  approve any  acquisition, merger or  consolidation that  would
have  a substantial anti-competitive result, unless the anti-competitive effects
of the proposed transaction are clearly outweighed by a greater public  interest
in  meeting the convenience and needs of the community to be served. The Federal
Reserve also  considers  capital adequacy  and  other financial  and  managerial
factors in reviewing acquisitions or mergers.
 
    With  certain exceptions,  BHCA also prohibits  a bank  holding company from
acquiring or retaining direct or indirect  ownership or control of more than  5%
of the voting shares of any company which is not a bank or bank holding company,
or  from  engaging directly  or  indirectly in  activities  other than  those of
banking,  managing  or  controlling  banks,   or  providing  services  for   its
subsidiaries.  The principal  exceptions to  these prohibitions  involve certain
non-bank activities which, by statute or by Federal Reserve regulation or order,
have been identified as activities closely related to the business of banking or
of managing  or controlling  banks. In  making this  determination, the  Federal
Reserve  considers whether the performance of  such activities by a bank holding
company can  be expected  to produce  benefits  to the  public such  as  greater
convenience,  increased competition or  gains in efficiency  in resources, which
can be  expected to  outweigh the  risks  of possible  adverse effects  such  as
decreased  or  unfair  competition,  conflicts of  interest  or  unsound banking
practices. The Bank's  data processing and  insurance subsidiaries are  non-bank
companies engaged in activities deemed permissible by the Federal Reserve.
 
    Subsidiary   banks  of  a  bank  holding  company  are  subject  to  certain
restrictions imposed by the Federal Reserve  Act on extensions of credit to  the
bank holding company or its subsidiaries, on investments in their securities and
on  the use of their  securities as collateral for  loans to any borrower. These
regulations and restrictions  may limit  the Company's ability  to obtain  funds
from  the Banks for  its cash needs,  including funds for  payment of dividends,
interest and  operating expenses.  Further, under  the Federal  Reserve Act  and
certain  regulations  of the  Federal Reserve,  a bank  holding company  and its
subsidiaries are  prohibited from  engaging in  certain typing  arrangements  in
connection with any extension of credit, lease or sale of property or furnishing
of services. For example, the Bank
 
                                       39
<PAGE>
may  not generally require a customer to  obtain other services from the Bank or
the Company, and may not require that  the customer promise not to obtain  other
services  from a  competitor, as a  condition to  an extension of  credit to the
customer.
 
FEDERAL AND STATE BANK REGULATION
 
    The Banks, as  state-chartered banks  with deposits insured  by the  Federal
Deposit  Insurance  Corporation ("FDIC")  that are  not  members of  the Federal
Reserve System, are subject to the supervision and regulation of the Director of
the Oregon Department of Consumer  and Business Services, administrated  through
the Division of Finance and Corporate Securities ("Oregon Director"), and to the
supervision  and regulation of  the FDIC. These agencies  may prohibit the Banks
from engaging  in  what  they  believe  constitute  unsafe  or  unsound  banking
practices.
 
    As  of July  1, 1989,  Oregon permits  out-of-state banking  institutions to
acquire banks or holding companies that have  been in existence for a period  of
no  fewer  than three  years. Generally,  such acquisitions  are subject  to the
approval of the Federal Reserve  Board and the Oregon  Director. As a result  of
1993  Oregon legislation  and 1995 federal  law changes, Oregon  banks may merge
with out-of-state national or state  banks, and out-of-state national and  state
banks  may acquire  Oregon branches  or may merger  with or  acquire branches of
Oregon or  federal  savings  associations.  Initial  acquisitions  must  involve
institutions  which been engaged in banking in  Oregon for at least three years,
but once such  an acquisition  is made, the  resulting bank  may add  additional
branches.
 
    The  Community Reinvestment  Act ("CRA")  requires that,  in connection with
examinations of financial  institutions within their  jurisdiction, the  Federal
Reserve  or  the FDIC  evaluates  the record  of  the financial  institutions in
meeting the credit needs of their local communities, including low and  moderate
income  neighborhoods, consistent  with the  safe and  sound operation  of those
banks. These factors are also considered in evaluating mergers, acquisitions and
applications to open a branch or facility. Security Bank's current CRA rating is
"Outstanding," the highest  rating awarded.  Lincoln Security has  not yet  been
subjected to a CRA examination.
 
    The  Banks are also  subject to certain restrictions  imposed by the Federal
Reserve Act on extensions of credit to executive officers, directors,  principal
shareholders  or any related interest of  such persons. Extensions of credit (i)
must be  made on  substantially the  same terms,  including interest  rates  and
collateral  as, and following  credit underwriting procedures  that are not less
stringent than, those prevailing  at the time  for comparable transactions  with
persons  not covered above and who are  not employees, and (ii) must not involve
more than the normal  risk of repayment or  present other unfavorable  features.
The  Banks  are  also subject  to  certain  lending limits  and  restrictions on
overdrafts to such persons. A violation of these restrictions may result in  the
assessment  of substantial civil monetary penalties  on the affected bank or any
officer, director, employee, agent or other person participating in the  conduct
of  the affairs of  that bank, the imposition  of a cease  and desist order, and
other regulatory sanctions.
 
    Under the Federal Deposit Insurance Corporation Improvement Act  ("FDICIA"),
each Federal banking agency is required to prescribe, by regulation, non-capital
safety  and  soundness standards  for  institutions under  its  authority. These
standards are to cover internal controls, information systems and internal audit
systems, loan documentation, credit underwriting, interest rate exposure,  asset
growth,  compensation, fees and benefits,  such other operational and managerial
standards as the agency  determines to be appropriate,  and standards for  asset
quality,  earnings and stock valuation. An institution which fails to meet these
standards must develop  a plan acceptable  to the agency,  specifying the  steps
that  the institution  will take  to meet  the standards.  Failure to  submit or
implement such a plan may subject  the institution to regulatory sanctions.  The
Company  believes that the Banks meet all  the standards, and therefore does not
believe that these regulatory standards materially affect the Company's business
operations.
 
                                       40
<PAGE>
DEPOSIT INSURANCE
 
    As FDIC member institutions, the deposits of the Banks are currently insured
to a maximum of $100,000 per depositor through the Bank Insurance Fund  ("BIF"),
administered  by  the FDIC.  The Banks  are required  to pay  semiannual deposit
insurance premium assessments to the FDIC.
 
    The FDICIA  includes  provisions to  reform  the Federal  deposit  insurance
system,  including the implementation of  risk-based deposit insurance premiums.
The FDICIA  also  permits  the  FDIC to  make  special  assessments  on  insured
depository  institutions in  amounts determined by  the FDIC to  be necessary to
give it  adequate assessment  income to  repay amounts  borrowed from  the  U.S.
Treasury  and other sources or  for any other purpose  the FDIC deems necessary.
Pursuant to the FDICIA, the FDIC implemented a transitional risk based insurance
premium system  on January  1, 1993.  Generally, under  this system,  banks  are
assessed  insurance  premiums according  to  how much  risk  they are  deemed to
present to  BIF.  Banks with  higher  levels of  capital  and a  low  degree  of
supervisory  concern are assessed lower premiums than banks with lower levels of
capital or involving a higher degree of supervisory concern. The Banks each have
a current FDIC premium rate of $.00  per $100 of domestic deposits. The  premium
range  is from $.00, for the  highest-rated institutions (subject to a statutory
minimum assessment of $2,000) to $.27 per $100 of domestic deposits.
 
DIVIDENDS
 
    The principal source of  the Company's cash  revenues is dividends  received
from  Security Bank. Lincoln Security Bank  does not currently pay dividends and
is not expected  to in the  near future, as  earnings will be  retained to  fund
future  growth. Under the Oregon Bank Act, the Banks are subject to restrictions
on its  payment of  cash dividends  to  the Company.  A bank  may not  pay  cash
dividends  if that  payment would  reduce the amount  of its  capital below that
necessary  to  meet  minimum  applicable  regulatory  capital  requirements.  In
addition,  the amount of the dividend may  not be greater than its net undivided
profits then on hand, after first deducting (i) all losses; (ii) all bad  debts,
unless  the debts are  well-secured, (a) on  which interest for  a period of one
year is  past  due and  unpaid,  and (b)  upon  which final  judgment  has  been
obtained,  but for  more than  one year  the judgment  has been  unsatisfied and
interest has not  been paid;  (iii) all assets  or depreciation  charged off  as
required  by the  Oregon Director; and  (iv) all accrued  expenses, interest and
taxes of the bank. Lincoln Security is not able to pay dividends as a result  of
the lack of retained earnings. It is not known if or when Lincoln Security would
be able to pay such dividends.
 
    In  addition,  the  appropriate  regulatory  authorities  are  authorized to
prohibit banks  and bank  holding companies  from paying  dividends which  would
constitute  an unsafe or unsound banking practice. The Banks and the Company are
not currently subject to  any regulatory restrictions  on their dividends  other
than those noted above.
 
CAPITAL ADEQUACY
 
    The  federal  bank regulatory  agencies use  capital adequacy  guidelines in
their examination and  regulation of bank  holding companies and  banks. If  the
capital falls below the minimum levels established by these guidelines, the bank
holding  company  or  bank  may  be  denied  approval  to  acquire  or establish
additional banks or non-bank businesses or to open facilities.
 
    The FDIC and Federal Reserve have adopted risk-based capital guidelines  for
banks and bank holding companies. The risk-based capital guidelines are designed
to  make regulatory capital  requirements more sensitive  to differences in risk
profile among banks and bank holding companies, to account for off-balance sheet
exposure and to  minimize disincentives  for holding liquid  assets. Assets  and
off-balance  sheet  items  are  assigned to  broad  risk  categories,  each with
appropriate weights.  The  resulting  capital  ratios  represent  capital  as  a
percentage  of  total  risk-weighted  assets and  off-balance  sheet  items. The
guidelines are minimums,  and the Federal  Reserve has noted  that bank  holding
companies   contemplating  significant  expansion   programs  should  not  allow
expansion to diminish their  capital ratios and should  maintain ratios well  in
excess of the minimum. The current guidelines require all bank holding companies
and  federally-regulated banks  to maintain  a minimum  risk-based total capital
ratio equal to 8%, of which at least 4% must be Tier 1 capital.
 
                                       41
<PAGE>
                                    INDEX TO
                       CONSOLIDATED FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
Independent Auditors' Report..............................................   F-2
 
Consolidated Balance Sheets at December 31, 1994 and 1995 and at June 30,
 1996 (unaudited).........................................................   F-4
 
For the Years Ended December 31, 1994 and 1995 and for the Six Months
 Ended June 30, 1995 and 1996 (unaudited):
 
Consolidated Statements of Income.........................................   F-6
 
  Consolidated Statements of Shareholders' Equity.........................   F-7
 
  Consolidated Statements of Cash Flows...................................   F-8
 
  Notes to Consolidated Financial Statements..............................   F-9
</TABLE>
 
                                      F-1
<PAGE>
                                     [LOGO]
 
                          INDEPENDENT AUDITORS' REPORT
 
The Board of Directors and Shareholders
Security Bank Holding Company:
 
    We  have audited  the accompanying  consolidated balance  sheets of Security
Bank Holding Company and Subsidiaries as of December 31, 1994 and 1995, and  the
related  consolidated statements of income, shareholders' equity, and cash flows
for the  years  then ended.  These  consolidated financial  statements  are  the
responsibility  of the Company's management. Our responsibility is to express an
opinion on these consolidated 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  above
present  fairly, in  all material respects,  the financial  position of Security
Bank Holding Company and Subsidiaries as of December 31, 1994 and 1995, and  the
results  of their operations  and their cash  flows for the  years then ended in
conformity with generally accepted accounting principles.
 
    As discussed in note  1 to the consolidated  financial statements, the  Bank
changed  its method of accounting for certain debt and equity securities in 1994
to adopt the provisions of the Financial Accounting Standards Board's  Statement
of  Financial  Accounting  Standards  (SFAS) No.  115,  "Accounting  for Certain
Investments in Debt and Equity Securities".
 
                                                  KPMG PEAT MARWICK LLP
 
Portland, Oregon
January 19, 1996
 
                                      F-2
<PAGE>
                 (This page has been left blank intentionally.)
 
                                      F-3
<PAGE>
                         SECURITY BANK HOLDING COMPANY
                                AND SUBSIDIARIES
                          CONSOLIDATED BALANCE SHEETS
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                                         DECEMBER 31,
                                                              ----------------------------------
                                                                    1994              1995
                                                              ----------------  ----------------      JUNE 30,
                                                                                                        1996
                                                                                                  ----------------
                                                                                                    (UNAUDITED)
<S>                                                           <C>               <C>               <C>
Cash and cash equivalents:
 
  Cash and due from banks (notes 2 and 15)..................  $      4,217,071  $      5,012,995  $      4,454,948
 
  Federal funds sold........................................         1,057,686         3,083,714           740,774
                                                              ----------------  ----------------  ----------------
 
      Total cash and cash equivalents.......................         5,274,757         8,096,709         5,195,722
 
Time deposits -- domestic financial institutions............         1,649,681           549,741           370,060
 
Investment securities available for sale (note 3)...........        24,585,468        58,227,575        70,028,458
 
Investment securities held to maturity (notes 3 and 15).....        29,274,692         --                --
 
Loans, net (notes 4, 5 and 15)..............................        72,457,969        76,911,398        80,571,952
 
Mortgage loans held for sale, at cost which approximates
 market (note 4)............................................         1,464,034         2,616,032         1,419,192
 
Net investment in direct financing leases (note 6)..........         2,051,152         3,541,804         3,630,902
 
Premises and equipment, net (note 7)........................         3,261,184         3,241,153         3,281,482
 
Federal Home Loan Bank stock, at cost (note 15).............         1,563,700         1,494,600         1,753,600
 
Other assets................................................         3,987,922         3,909,321         3,816,883
                                                              ----------------  ----------------  ----------------
 
      Total assets..........................................  $    145,570,559  $    158,588,333  $    170,068,251
                                                              ----------------  ----------------  ----------------
                                                              ----------------  ----------------  ----------------
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-4
<PAGE>
                         SECURITY BANK HOLDING COMPANY
                                AND SUBSIDIARIES
                    CONSOLIDATED BALANCE SHEETS (CONTINUED)
            LIABILITIES, MINORITY INTEREST AND SHAREHOLDERS' EQUITY
 
<TABLE>
<CAPTION>
                                                                         DECEMBER 31,
                                                              ----------------------------------
                                                                    1994              1995
                                                              ----------------  ----------------      JUNE 30,
                                                                                                        1996
                                                                                                  ----------------
                                                                                                    (UNAUDITED)
 
<S>                                                           <C>               <C>               <C>
Liabilities:
  Deposits:
    Demand..................................................  $     18,468,585  $     19,492,203  $     19,506,213
    Interest-bearing demand.................................         1,909,217         2,415,886         2,741,564
    NOW accounts............................................        22,729,504        21,485,781        20,625,964
    Money market accounts...................................        15,241,288        15,368,474        17,635,797
    Savings accounts........................................        16,993,234        15,363,678        15,028,617
    Time deposits (note 9)..................................        45,776,327        53,164,393        58,262,915
                                                              ----------------  ----------------  ----------------
      Total deposits........................................       121,118,155       127,290,415       133,801,070
Securities sold under agreements to repurchase (notes 3 and
 8).........................................................         2,812,800         2,874,619         5,083,511
ESOP debt (note 10).........................................           733,000           644,000           644,000
Short-term borrowings.......................................           510,200           500,937           659,049
Federal Home Loan Bank borrowings (note 15).................         8,785,700        11,500,000        13,720,500
Other liabilities...........................................           981,908         1,406,508         1,308,170
                                                              ----------------  ----------------  ----------------
      Total liabilities.....................................       134,941,763       144,216,479       155,216,300
                                                              ----------------  ----------------  ----------------
Minority interest in subsidiary.............................         --                --                  962,702
                                                              ----------------  ----------------  ----------------
 
Shareholders' equity:
  Nonvoting preferred stock, $5 par value. Authorized
   5,000,000 shares; none issued............................         --                --                --
  Voting preferred stock, $5 par value. Authorized 5,000,000
   shares; none issued......................................         --                --                --
  Common stock, $5 par value. Authorized 10,000,000 shares;
   issued and outstanding 2,762,195 shares (2,761,967 shares
   in 1994 and 2,762,325 shares at June 30, 1996) (note
   1).......................................................        13,809,835        13,810,975        13,811,625
  Surplus...................................................          (145,042)              965           164,862
  Retained earnings (note 11)...............................           144,730         1,688,954         2,289,352
  Unearned ESOP shares at cost (note 1).....................        (2,203,078)       (1,980,914)       (1,853,314)
  Unrealized (loss) gain on investment securities available
   for sale (note 1)........................................          (977,649)          851,874          (523,276)
                                                              ----------------  ----------------  ----------------
      Total shareholders' equity............................        10,628,796        14,371,854        13,889,249
Commitments and contingent liabilities (note 12)............
                                                              ----------------  ----------------  ----------------
      Total liabilities, minority interest and shareholders'
       equity...............................................  $    145,570,559  $    158,588,333  $    170,068,251
                                                              ----------------  ----------------  ----------------
                                                              ----------------  ----------------  ----------------
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-5
<PAGE>
                         SECURITY BANK HOLDING COMPANY
                                AND SUBSIDIARIES
                       CONSOLIDATED STATEMENTS OF INCOME
 
<TABLE>
<CAPTION>
                                                                              YEARS ENDED
                                                                              DECEMBER 31,
                                                                      ----------------------------
                                                                          1994           1995
                                                                      -------------  -------------      SIX-MONTH PERIODS
                                                                                                          ENDED JUNE 30,
                                                                                                    --------------------------
                                                                                                        1995          1996
                                                                                                    ------------  ------------
                                                                                                    (UNAUDITED)   (UNAUDITED)
<S>                                                                   <C>            <C>            <C>           <C>
Interest income:
  Interest on loans.................................................  $   6,718,679  $   8,127,412  $  4,024,719  $  4,154,819
  Interest and dividends on securities:
    Taxable.........................................................      2,262,027      2,340,964     1,199,802     1,488,136
    Exempt from Federal income taxes................................        851,311        971,872       474,937       510,099
    Interest on time deposits -- domestic financial institutions....         77,375         60,785        34,702        12,327
    Dividend income on Federal Home Loan Bank stock.................         78,528         99,156        55,683        66,786
    Interest on Federal funds sold..................................         80,011        108,857        18,342        78,859
    Income on direct financing leases...............................        135,023        247,626        99,561       169,385
                                                                      -------------  -------------  ------------  ------------
      Total interest income.........................................     10,202,954     11,956,672     5,907,746     6,480,411
                                                                      -------------  -------------  ------------  ------------
 
Interest expense:
  Deposits:
    Interest-bearing demand.........................................         57,354         68,664        34,290        46,759
    NOW.............................................................        264,255        268,083       127,888       111,189
    Money market....................................................        369,441        474,658       207,418       286,515
    Savings.........................................................        423,608        411,371       200,003       192,650
    Time (note 9)...................................................      1,547,641      2,388,050     1,113,932     1,478,901
  Securities sold under agreements to repurchase (note 8)...........        104,370        151,772        81,506        80,134
  ESOP debt.........................................................         40,296         62,731        33,589        27,057
  Short-term borrowings.............................................         16,012         23,197        11,001        11,007
  Federal Home Loan Bank borrowings.................................        311,476        572,669       337,873       390,823
                                                                      -------------  -------------  ------------  ------------
      Total interest expense........................................      3,134,453      4,421,195     2,147,500     2,625,035
                                                                      -------------  -------------  ------------  ------------
      Net interest income...........................................      7,068,501      7,535,477     3,760,246     3,855,376
Provision for loan losses (note 5)..................................        200,000        160,000        95,000        90,000
                                                                      -------------  -------------  ------------  ------------
      Net interest income after provision for loan losses...........      6,868,501      7,375,477     3,665,246     3,765,376
                                                                      -------------  -------------  ------------  ------------
 
Other income:
  Service charges on deposit accounts...............................        847,362        910,208       457,922       474,087
  Gain (loss) on sales of investment securities available for sale,
   net..............................................................       (168,155)        12,517         4,076        18,492
  Loan servicing fees...............................................        262,619        305,671       120,915       161,304
  Sold real estate loan fees........................................        627,882        610,757       241,725       484,311
  Other.............................................................        390,937        405,293       215,352       260,618
                                                                      -------------  -------------  ------------  ------------
      Total other income............................................      1,960,645      2,244,446     1,039,990     1,398,812
                                                                      -------------  -------------  ------------  ------------
 
Other expense:
  Salaries and employee benefits....................................      3,554,272      3,933,862     1,917,263     2,335,073
  Occupancy of bank premises........................................        417,193        404,785       200,782       207,956
  Furniture and equipment...........................................        442,583        604,558       274,451       342,389
  Professional fees.................................................        362,211        408,231       205,763       245,614
  FDIC assessment...................................................        246,156        136,728       132,596         2,000
  Supplies..........................................................        247,750        288,093       156,038       117,304
  Other.............................................................      1,121,903      1,346,557       736,608       808,718
                                                                      -------------  -------------  ------------  ------------
      Total other expense...........................................      6,392,068      7,122,814     3,623,501     4,059,054
                                                                      -------------  -------------  ------------  ------------
      Income before provision for income taxes......................      2,437,078      2,497,109     1,081,735     1,105,134
Provision for income taxes (note 13)................................        761,700        633,000       323,000       280,000
                                                                      -------------  -------------  ------------  ------------
      Net income....................................................  $   1,675,378  $   1,864,109  $    758,735  $    825,134
                                                                      -------------  -------------  ------------  ------------
                                                                      -------------  -------------  ------------  ------------
      Net income per share (note 1).................................  $         .77  $         .83  $        .35  $        .36
                                                                      -------------  -------------  ------------  ------------
                                                                      -------------  -------------  ------------  ------------
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-6
<PAGE>
                         SECURITY BANK HOLDING COMPANY
                                AND SUBSIDIARIES
                CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
                     YEARS ENDED DECEMBER 31, 1994 AND 1995
                    AND SIX-MONTH PERIOD ENDED JUNE 30, 1996
 
<TABLE>
<CAPTION>
                                                                                          UNEARNED    UNREALIZED
                                              COMMON STOCK                                  ESOP         GAIN         TOTAL
                                         ----------------------              RETAINED      SHARES,     (LOSS) ON   SHAREHOLDERS'
                                          SHARES      AMOUNT      SURPLUS    EARNINGS      AT COST    SECURITIES      EQUITY
                                         ---------  -----------  ---------  -----------  -----------  -----------  ------------
<S>                                      <C>        <C>          <C>        <C>          <C>          <C>          <C>
Balance, December 31, 1993.............  2,761,577  $13,807,885  $(260,110) $(1,246,558) $(2,387,883) $  (296,631)  $9,616,703
Net income.............................     --          --          --        1,675,378      --           --         1,675,378
Dividends..............................     --          --          --         (284,090)     --           --          (284,090)
Sale of common stock...................        399        1,995       (317)     --           --           --             1,678
Redemption of common stock.............         (9)         (45)         2      --           --           --               (43)
Release of ESOP shares.................     --          --         115,383      --           184,805      --           300,188
Unrealized loss on securities available
 for sale..............................     --          --          --          --           --          (681,018)    (681,018)
                                         ---------  -----------  ---------  -----------  -----------  -----------  ------------
Balance, December 31, 1994.............  2,761,967   13,809,835   (145,042)     144,730   (2,203,078)    (977,649)  10,628,796
Net income.............................     --          --          --        1,864,109      --           --         1,864,109
Dividends..............................     --          --          --         (319,885)     --           --          (319,885)
Sale of common stock...................        273        1,365        291      --           --           --             1,656
Redemption of common stock.............        (45)        (225)        62      --           --           --              (163)
Release of ESOP shares.................     --          --         145,654      --           222,164      --           367,818
Unrealized gain on securities available
 for sale..............................     --          --          --          --           --         1,829,523    1,829,523
                                         ---------  -----------  ---------  -----------  -----------  -----------  ------------
Balance, December 31, 1995.............  2,762,195   13,810,975        965    1,688,954   (1,980,914)     851,874   14,371,854
Unaudited:
  Net income...........................     --          --          --          825,134      --           --           825,134
  Dividends............................     --          --          --         (224,736)     --           --          (224,736)
  Sale of common stock.................        130          650        383      --           --           --             1,033
  Release of ESOP shares...............     --          --         163,514      --           127,600      --           291,114
  Unrealized loss on securities
   available for sale..................     --          --          --          --           --        (1,375,150)  (1,375,150)
                                         ---------  -----------  ---------  -----------  -----------  -----------  ------------
Balance at June 30, 1996 (unaudited)...  2,762,325  $13,811,625  $ 164,862  $ 2,289,352  $(1,853,314) $  (523,276)  $13,889,249
                                         ---------  -----------  ---------  -----------  -----------  -----------  ------------
                                         ---------  -----------  ---------  -----------  -----------  -----------  ------------
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-7
<PAGE>
                         SECURITY BANK HOLDING COMPANY
                                AND SUBSIDIARIES
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                                             YEARS ENDED
                                                                             DECEMBER 31,
                                                                      --------------------------
                                                                          1994          1995
                                                                      ------------  ------------      SIX-MONTH PERIODS
                                                                                                        ENDED JUNE 30,
                                                                                                  --------------------------
                                                                                                      1995          1996
                                                                                                  ------------  ------------
                                                                                                  (UNAUDITED)   (UNAUDITED)
<S>                                                                   <C>           <C>           <C>           <C>
Cash flows provided by operating activities:
  Net income........................................................  $  1,675,378  $  1,864,109  $    758,735  $    825,134
  Adjustments to reconcile net income to net cash provided by
   operating activities:
    Depreciation and amortization...................................       589,600       643,626       323,860       300,847
    Provision for loan losses.......................................       200,000       160,000        95,000        90,000
    Origination of mortgage loans held for sale.....................   (20,133,917)  (32,076,359)  (11,313,171)  (28,387,693)
    Proceeds from mortgage loans sold...............................    22,465,660    30,924,361    11,141,574    29,584,533
    Net (gain) loss on sale of fixed assets.........................          (679)         (573)       (1,238)       11,214
    Net gain on call of investment securities held to maturity......        (1,841)       (2,783)      --            --
    Net (gain) loss on sale of investment securities available for
     sale...........................................................       168,155       (12,517)       (4,076)      (18,492)
    Federal Home Loan Bank stock dividend...........................       (90,300)      (98,900)      (55,500)      (66,600)
    ESOP related compensation expense...............................       300,188       367,818       173,962       291,114
    Decrease (increase) in other assets.............................      (534,306)       78,601       (55,252)       92,438
    (Decrease) increase in other liabilities........................      (322,906)     (298,365)        2,138       660,749
                                                                      ------------  ------------  ------------  ------------
      Net cash provided by operating activities.....................     4,315,032     1,549,018     1,066,032     3,383,244
                                                                      ------------  ------------  ------------  ------------
 
Cash flows from investing activities:
  Net decrease in time deposits -- domestic financial
   institutions.....................................................       360,319     1,099,940       280,903       179,681
  Purchase of investment securities held to maturity................   (17,135,111)   (4,595,144)     (460,236)      --
  Purchase of investment securities available for sale..............    (4,052,473)  (10,079,490)     (897,079)  (25,130,133)
  Proceeds from sales of investment securities available for sale...     6,228,896     5,612,195     2,433,088     7,016,462
  Proceeds from maturities of investment securities held to
   maturity.........................................................       761,144     1,916,467       691,215       --
  Proceeds from maturities of investment securities available for
   sale.............................................................     4,237,959     5,144,345     1,085,155     4,138,813
  Net loan originations.............................................   (11,080,544)   (4,561,868)   (3,061,582)   (3,730,866)
  Purchase of participations........................................      (855,625)      (51,561)     (103,125)      (19,688)
  Additions to premises and equipment...............................      (595,099)     (427,156)     (268,003)     (311,690)
  Purchase of Federal Home Loan Bank stock..........................    (2,019,800)   (1,997,700)     (982,600)   (1,127,800)
  Redemption of Federal Home Loan Bank stock........................       917,000     2,165,700       750,000       935,400
  Proceeds from sales of premises and equipment.....................        31,098         6,134         5,122        17,530
  Originations of direct financing leases...........................    (1,146,922)   (1,734,943)     (801,808)     (596,719)
  Gross payments on direct financing leases.........................       479,197       244,291       221,329       507,621
  Minority interest in subsidiary...................................       --            --            --            962,702
                                                                      ------------  ------------  ------------  ------------
      Net cash used in investing activities.........................   (23,869,961)   (7,258,790)   (1,107,621)  (17,158,687)
                                                                      ------------  ------------  ------------  ------------
 
Cash flows from financing activities:
  Net increase (decrease) in deposits...............................    10,627,331     6,172,260       (75,863)    6,510,655
  Increase (decrease) in securities sold with agreements to
   repurchase.......................................................       648,564        61,819       399,187     2,208,892
  Repayment of ESOP debt............................................       (83,000)      (89,000)      --            --
  Increase in Federal Home Loan Bank borrowings.....................     8,785,700     2,714,300       --          2,220,500
  Payment of dividends..............................................      (284,090)     (319,885)     (159,936)     (224,736)
  Other.............................................................        11,835        (7,770)       34,564       159,145
                                                                      ------------  ------------  ------------  ------------
      Net cash provided by financing activities.....................    19,706,340     8,531,724       197,952    10,874,456
                                                                      ------------  ------------  ------------  ------------
      Net increase (decrease) in cash and cash equivalents..........       151,411     2,821,952       156,363    (2,900,987)
Cash and cash equivalents at beginning of year......................     5,123,346     5,274,757     5,274,757     8,096,709
                                                                      ------------  ------------  ------------  ------------
Cash and cash equivalents at end of year............................  $  5,274,757  $  8,096,709  $  5,431,120  $  5,195,722
                                                                      ------------  ------------  ------------  ------------
                                                                      ------------  ------------  ------------  ------------
 
Supplemental disclosures of cash flow information:
  Cash paid during the year for:
    Interest........................................................  $  3,101,486  $  4,329,506  $  2,116,247  $  2,543,842
    Income taxes....................................................       990,050       662,000       306,000       175,000
 
Supplemental disclosures of investing activities:
  Unrealized gain (loss) on investment securities available for
   sale, net of tax.................................................      (681,018)    1,829,523      (635,713)   (1,375,150)
  Loans transferred to other real estate owned......................        42,920       --            --            --
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-8
<PAGE>
                         SECURITY BANK HOLDING COMPANY
                                AND SUBSIDIARIES
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
             DECEMBER 31, 1994 AND 1995 AND JUNE 30, 1995 AND 1996
             (INFORMATION AS OF JUNE 30, 1996 AND FOR THE SIX-MONTH
               PERIODS ENDED JUNE 30, 1995 AND 1996 IS UNAUDITED)
 
(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
(A) PRINCIPLES OF CONSOLIDATION
 
    The  accompanying consolidated financial statements  include the accounts of
Security Bank Holding Company (SBHC),  a bank holding company, its  wholly-owned
subsidiary,  Security Bank  (the Bank),  its majority-owned  subsidiary, Lincoln
Security Bank  (Lincoln Security),  and  the Bank's  wholly-owned  subsidiaries,
Alland,  Inc. and Security Financial  Insurance Agency. Significant intercompany
accounts and transactions have been eliminated in consolidation.
 
(B) DESCRIPTION OF BUSINESS
 
    The Bank conducts  a general  banking business. Its  activities include  the
usual  deposit  functions  of a  commercial  bank: commercial,  real  estate and
installment loans; equipment leasing; checking and savings accounts;  collection
and  escrow services and safe deposit facilities. The Bank's primary market area
consists of cities and communities along the southern Oregon coast. The Bank  is
subject  to the regulations  of certain Federal  agencies and undergoes periodic
examinations by these regulatory authorities.
 
    Security Financial Insurance Agency is in the business of selling annuities,
mutual funds,  single premium  whole  life policies  and long-term  health  care
insurance.
 
    Alland, Inc. holds title to certain assets of the Bank.
 
    Lincoln  Security  is  a newly  organized  state chartered  bank  located in
Newport, Oregon in which  SBHC holds a majority  interest. SBHC facilitated  the
organization  of Lincoln Security by purchasing 68.44% of all outstanding common
shares of Lincoln Security common stock,  with the remainder of the  outstanding
common  stock held by local investors.  Lincoln Bank commenced operations in May
of 1996, and engages in general commercial banking business. Lincoln Bank offers
commercial banking services to small  and medium size businesses,  professionals
and retail customers in the Bank's market area.
 
(C) BASIS OF FINANCIAL STATEMENT PREPARATION
 
    The  financial statements  have been  prepared in  conformity with generally
accepted accounting principles.  The interim  consolidated financial  statements
are  unaudited, but include all adjustments  consisting of only normal accruals,
which the Company considers necessary for a fair presentation of the results  of
operations  for  such interim  periods. In  preparing the  financial statements,
management is  required  to  make  estimates and  assumptions  that  affect  the
reported  amounts of assets and liabilities as  of the date of the balance sheet
and  revenues  and  expenses  for  the  period.  Actual  results  could   differ
significantly from those estimates.
 
    Estimates  that are  particularly susceptible  to significant  change in the
near-term relate to  the determination of  the reserve for  loan losses and  the
valuation  of  real  estate  acquired  in  connection  with  foreclosures  or in
satisfaction of loans. In connection with  the determination of the reserve  for
loan losses and real estate owned, management obtains independent appraisals for
significant properties.
 
    The  Bank is  located in Coos  and Curry  Counties of Oregon.  The result of
doing business in this geographic region has been growth in loan demand. A large
portion of the Bank's loans are collateralized by real estate in this geographic
area and, accordingly, the ultimate collectibility of this portion of the Bank's
loan portfolio  is  susceptible  to  changes in  the  local  market  conditions.
However, the loan
 
                                      F-9
<PAGE>
                         SECURITY BANK HOLDING COMPANY
                                AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
portfolio  is diversified and  management believes there  is no concentration of
loans exceeding 10% for any particular industry. It is management's opinion that
the reserve for loan losses on loans and real estate owned is adequate to absorb
known and inherent risks in the loan portfolio. While management uses  available
information to recognize losses on loans and real estate owned, future additions
to  the reserve  may be  necessary based on  changes in  economic conditions. In
addition, various regulatory agencies, as an integral part of their  examination
processes,  periodically review the Bank's reserve  for losses on loans and real
estate owned. Such agencies may require  the Bank to recognize additions to  the
reserve based on their judgments about information available to them at the time
of their examinations.
 
(D) INVESTMENT SECURITIES
 
    On  January  1, 1994,  the Bank  adopted  Statement of  Financial Accounting
Standards (SFAS) No. 115, "Accounting for Certain Investments in Debt and Equity
Securities". Under this pronouncement, securities held to maturity are stated at
cost,  adjusted  for  amortization  of  premiums  and  accretion  of  discounts.
Securities  available  for sale  and trading  account  securities are  stated at
market value. Gains and losses on  sale of securities, recognized on a  specific
identification  basis, and  valuation adjustments of  trading account securities
are included in noninterest  income. Net unrealized gain  or loss on  securities
available  for sale are  included, net of  tax, as a  component of shareholders'
equity.
 
    In November 1995,  the Financial Accounting  Standards Board issued  Special
Report  No. 115-B, "A Guide to Implementation of Statement 115 on Accounting for
Certain Investments in  Debt and  Equity Securities." Special  Report No.  115-B
allowed for a one-time reclassification among investment categories. In light of
the  Special Report,  the Bank reclassified  all held to  maturity securities to
available for  sale. Total  amortized  cost of  securities transferred  and  the
related  unrealized  gains  at  the date  of  transfer  totaled  $32,016,917 and
$276,531, respectively.
 
(E) INCOME RECOGNITION
 
    Interest is accrued on a simple  interest basis. The accrual of interest  on
loans  is discontinued when, in management's judgment, the future collectibility
of interest or  principal is  in serious doubt.  Loans are  generally placed  on
nonaccrual status when they are 90 days past due.
 
    Loan origination and commitment fees, net of certain direct loan origination
costs,  are  generally  recognized over  the  life  of the  related  loan  as an
adjustment of the yield.
 
(F) RESERVE FOR LOAN LOSSES
 
    The reserve  for  loan losses  represents  management's recognition  of  the
assumed  risks of extending credit and its evaluation of the quality of the loan
portfolio. The reserve is maintained at  a level considered adequate to  provide
for  potential loan losses  based on management's  assessment of various factors
affecting the  loan portfolio,  including a  review of  problem loans,  business
conditions,  loss experience  and an  overall evaluation  of the  quality of the
portfolio. The  reserve is  increased by  provisions charged  to operations  and
reduced  by  loans charged  off, net  of  recoveries. Loans  which are  120 days
delinquent are charged off. Uncollectible interest on loans is charged off or an
allowance established by  a charge to  income equal to  all interest  previously
accrued and interest is subsequently recognized only to the extent cash payments
are  received until  delinquent interest  is paid  in full  and, in management's
judgment, the  borrower's  ability  to  make  periodic  interest  and  principal
payments is back to normal in which case the loan is returned to accrual status.
 
    The  Bank adopted Statement  of Financial Standards  No. 114, "Accounting by
Creditors for Impairment  of a Loan"  as amended by  SFAS No. 118  (collectively
referred  to as SFAS No. 114) on January 1, 1995. SFAS No. 114 does not apply to
the Bank's credit card, residential real estate, or
 
                                      F-10
<PAGE>
                         SECURITY BANK HOLDING COMPANY
                                AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
consumer installment  loans as  these  are considered  large groups  of  smaller
balance  homogeneous loans which are collectively evaluated for impairment. SFAS
No. 114 requires entities to measure certain impaired loans based on the present
value of future cash flows discounted at the loan's effective interest rate,  or
at  the loan's  market value  or the  fair value  of collateral  if the  loan is
secured. A loan is  considered impaired when, based  on current information  and
events,  it is probable that the Bank will  be unable to collect all amounts due
according to the contractual  terms of the  loan agreement, including  scheduled
interest  payments. If the  measurement of the  impaired loans is  less than the
recorded investment  in  the  loan,  impairment is  recognized  by  creating  or
adjusting  an existing  allocation of  the allowance  for loan  losses. Impaired
loans are charged off once they are 120 days delinquent. Prior periods have  not
been restated. The Bank does not aggregate loans for the measurement of impaired
loans  as loans  have been evaluated  individually for  collectibility under the
provisions of these statements. When a loan is impaired, interest is not accrued
on the loan as interest income is  only recognized as received on a cash  basis.
Cash   receipts  are  first  applied   to  past-due  principal  payments  before
recognizing interest income.
 
(G) DIRECT FINANCING LEASES
 
    The aggregate lease payments to be received over the term of the leases plus
the estimated residual values  are capitalized as the  Bank's net investment  in
the  leases. The  excess of the  investment in the  leases over the  cost of the
equipment (unearned income) is recognized as income over the term of the lease.
 
(H) PREMISES AND EQUIPMENT
 
    Premises and equipment are stated at cost less accumulated depreciation  and
amortization.  Depreciation  and amortization  are charged  to expense  over the
estimated useful lives of  the assets (buildings --  thirty-one and one-half  to
forty  years; furniture and equipment  -- five to seven  years) and are computed
using an  accelerated method  for assets  acquired  in 1991  and after  and  the
straight-line method for assets acquired prior to 1991.
 
(I) OTHER REAL ESTATE
 
    Other  real  estate,  acquired  through  foreclosure  or  deed  in  lieu  of
foreclosure, is carried at  the lower of  cost or estimated  fair value, not  to
exceed estimated net realizable value. When the property is acquired, any excess
of  the loan balance over  the estimated net realizable  value is charged to the
reserve for loan  losses. Subsequent  write-downs, if  any, are  charged to  the
reserve for other real estate losses.
 
(J) INCOME TAXES
 
    Income  taxes  are  accounted  for under  the  asset  and  liability method.
Deferred  tax  assets  and  liabilities  are  recognized  for  the  future   tax
consequences   attributable  to  differences  between  the  financial  statement
carrying amounts of  existing assets  and liabilities and  their respective  tax
bases.  Deferred tax assets and liabilities are measured using enacted tax rates
expected to  apply to  taxable income  in  the years  in which  those  temporary
differences  are expected to be recovered or settled. The effect on deferred tax
assets and liabilities of a change in  tax rates is recognized in income in  the
period that includes the enactment date.
 
(K) NET INCOME PER SHARE
 
    Net income per share is based on the weighted average number of common share
and  common stock equivalents  outstanding during each period  and the effect of
stock options  to  the  extent  they  are  deemed  to  be  dilutive  (2,180,990,
2,269,517, 2,180,763 and 2,251,483 shares at June 30, 1995 and 1996 and December
31,  1994 and  1995, respectively).  For the years  ended December  31, 1994 and
1995, the
 
                                      F-11
<PAGE>
                         SECURITY BANK HOLDING COMPANY
                                AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
weighted average number  of common  shares outstanding did  not include  581,052
shares  and 522,471  shares, respectively, sold  to SBHC's ESOP  as these shares
have not been allocated to participant accounts nor have they been committed  to
be released.
 
(L) CASH AND CASH EQUIVALENTS
 
    For purposes of reporting cash flows, cash and cash equivalents include cash
on hand, amounts due from banks and federal funds sold. Generally, federal funds
are sold for one-day periods.
 
(M) RECLASSIFICATIONS
 
    Certain  amounts previously reported  on the December  31, 1994 consolidated
financial statements have been reclassified to conform to classifications on the
December 31, 1995 consolidated financial statements.
 
(N) RECENTLY ISSUED ACCOUNTING STANDARDS
 
    In May  1995,  the  FASB  issued SFAS  No.  122,  "Accounting  for  Mortgage
Servicing  Rights". SFAS  No. 122  amends certain provisions  of SFAS  No. 65 to
eliminate the accounting  distinction between rights  to service mortgage  loans
for  others  that are  acquired through  loan  origination activities  and those
acquired through purchase transactions. The provision  of SFAS No. 122 shall  be
applied  prospectively  in fiscal  years beginning  after  December 15,  1995 to
transactions in  which  a  mortgage  banking  enterprise  sells  or  securitizes
mortgage  loans with servicing rights retained  and to impairment evaluations of
all amounts capitalized as mortgage servicing rights, including those  purchased
before  the adoption of this statement. The Bank plans to implement SFAS No. 122
in fiscal 1996 and does not expect  implementation to have a material impact  on
the Bank's financial position or results of operations.
 
    In  October 1995, the FASB issued  SFAS No. 123, "Accounting for Stock-Based
Compensation", which applies  to all  transactions in which  an entity  acquires
goods  or services issuing equity instruments  or by incurring liabilities where
the payment amounts  are based on  the entity's common  stock price, except  for
employee  stock  ownership plans  (ESOP's).  The SFAS  covers  transactions with
employees and  non-employees and  is applicable  to both  public and  non-public
entities.
 
    SFAS  No. 123 requires that, except for transactions with employees that are
within the scope  of APB  Opinion No.  25, all  transactions in  which goods  or
services  are the consideration received for  the issuance of equity instruments
are to be accounted for based on the fair value of the consideration received or
the fair  value of  the equity  instrument issued,  whichever is  more  reliably
measurable.   However,  it  also  allows  an   entity  to  continue  to  measure
compensation costs for  those plans using  the intrinsic value  based method  of
accounting  prescribed by  APB Opinion No.  25, "Accounting for  Stock Issued to
Employees". Entities electing to follow the accounting methods in Opinion No. 25
must make pro forma  disclosures of net income  and, if presented, earnings  per
share,  as if the fair  value method of accounting  defined in the statement had
been applied.
 
    SFAS No. 123 is  effective for years beginning  after December 15, 1995,  or
for  an earlier fiscal  year for which  this statement is  initially adopted for
recognizing compensation costs. Pro forma disclosures required for entities that
elect to continue to measure compensation cost using Opinion No. 25 must include
the effects of all awards granted in fiscal years that begin after December  15,
1994.  SBHC  has elected  to  continue pursuing  Opinion  No. 25  and  will make
necessary SFAS No. 123 pro forma disclosures.
 
                                      F-12
<PAGE>
                         SECURITY BANK HOLDING COMPANY
                                AND SUBSIDIARIES
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
(O) STOCK SPLIT
 
    On September 20, 1995,  SBHC's Board of  Directors approved a  three-for-two
common stock split in the form of a 50% stock dividend paid during January 1996.
The par value of the new shares issued totaled $4,603,445, the majority of which
was  transferred from retained earnings  after transferring substantially all of
surplus. Accordingly, all share and per share data have been restated to reflect
the stock split. SBHC's Board of  Directors approved a two-for-one common  stock
split  in the form of  a 100% stock dividend  paid during 1994. Accordingly, all
share and per share data have been restated to reflect the stock split.
 
(2) CASH AND DUE FROM BANKS
    The Bank is required to maintain an average reserve balance with the Federal
Reserve Bank, or maintain such reserve balance  in the form of cash. The  amount
of this required reserve balance at December 31, 1994 and 1995 was approximately
$1,034,000  and  $1,020,000,  respectively,  and was  met  by  holding  cash and
maintaining an average reserve balance with the Federal Reserve Bank.
 
(3) INVESTMENT SECURITIES
    The Bank changed its  method of accounting for  certain investments in  debt
and  equity  securities in  connection  with the  issuance  of SFAS  No.  115 as
described in note  1. Upon the  adoption of  SFAS No. 115,  the Bank  classified
fixed  maturity securities  with amortized costs  and estimated  market value of
$43,242,659 and $43,723,618,  respectively, as  available-for-sale and  recorded
the  securities  at fair  value. Previously  those  securities were  recorded at
amortized  cost.  The  effect  of  the   adoption  was  a  $324,647  credit   to
shareholders'  equity which  has been combined  with 1994  changes in unrealized
losses on  securities  available  for  sale  to arrive  at  a  net  decrease  in
shareholders' equity of $681,018 during 1994.
 
                                      F-13
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
    NO  PERSON  HAS BEEN  AUTHORIZED  TO GIVE  ANY  INFORMATION OR  TO  MAKE ANY
REPRESENTATIONS IN CONNECTION WITH THIS  OFFERING OTHER THAN THOSE CONTAINED  IN
THIS   PROSPECTUS  AND,   IF  GIVEN   OR  MADE,   SUCH  OTHER   INFORMATION  AND
REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE COMPANY
OR THE UNDERWRITER. NEITHER  THE DELIVERY OF THIS  PROSPECTUS NOR ANY SALE  MADE
HEREUNDER  SHALL, UNDER ANY CIRCUMSTANCES, CREATE ANY IMPLICATION THAT THERE HAS
BEEN NO CHANGE IN THE AFFAIRS OF THE  COMPANY SINCE THE DATE HEREOF OR THAT  THE
INFORMATION  CONTAINED HEREIN IS CORRECT AS OF  ANY TIME SUBSEQUENT TO ITS DATE.
THIS PROSPECTUS DOES NOT  CONSTITUTE AN OFFER  TO SELL OR  A SOLICITATION OF  AN
OFFER  TO BUY ANY SECURITIES OTHER THAN THE SECURITIES TO WHICH IT RELATES. THIS
PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL OR A SOLICITATION OF AN OFFER TO
BUY SUCH SECURITIES IN ANY CIRCUMSTANCES IN WHICH SUCH OFFER OR SOLICITATION  IS
UNLAWFUL.
                           --------------------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                   PAGE
                                                 ---------
<S>                                              <C>
Prospectus Summary.............................      3
Selected Consolidated Financial Data...........      5
Risk Factors...................................      7
Use of Proceeds................................     11
Market for Common Stock........................     12
Capitalization.................................     13
Dilution.......................................     14
Dividends......................................     14
Selected Quarterly Financial Data..............     15
Management's Discussion and Analysis of
 Financial Condition and Results of
 Operations....................................     16
Business.......................................     33
Supervision and Regulation.....................     39
Management.....................................     44
Principal Shareholders.........................     50
Description of Common Stock....................     51
Underwriting...................................     54
Legal Matters..................................     54
Experts........................................     54
Transfer Agent.................................     54
Securities and Exchange Commission Policy on
 Indemnification...............................     54
Additional Information.........................     55
Index to Consolidated Financial Statements.....     F-1
</TABLE>
 
                           --------------------------
 
    UNTIL                   ,  1996, ALL  DEALERS EFFECTING  TRANSACTIONS IN THE
REGISTERED SECURITIES, WHETHER OR NOT PARTICIPATING IN THIS DISTRIBUTION, MAY BE
REQUIRED TO  DELIVER A  PROSPECTUS. THIS  IS IN  ADDITION TO  THE OBLIGATION  OF
DEALERS  TO DELIVER A PROSPECTUS WHEN ACTING AS UNDERWRITERS AND WITH RESPECT TO
THEIR UNSOLD ALLOTMENTS OR SUBSCRIPTIONS.
 
                                 350,000 SHARES
 
                                 SECURITY BANK
                                HOLDING COMPANY
 
                                  COMMON STOCK
 
                             ---------------------
 
                                   PROSPECTUS
 
                             ---------------------
 
                             BLACK & COMPANY, INC.
 
                                           , 1996
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                                    PART II
                       (ITEMS NOT REQUIRED IN PROSPECTUS)
 
ITEM 1.  INDEMNIFICATION OF OFFICERS AND DIRECTORS
 
    As  an Oregon  corporation, the  Company is  subject to  the Oregon Business
Corporation Act (the "Business Corporation Act"). Under the Business Corporation
Act, a corporation may provide in its Articles of Incorporation or in its Bylaws
for the indemnification of  directors and officers  against liability where  the
director  or officer has acted  in good faith and  with a reasonable belief that
actions taken were  in the best  interests of  the corporation or  at least  not
adverse  to the corporation's  best interests and, if  in a criminal proceeding,
the individual had no reasonable cause  to believe that the conduct in  question
was  unlawful.  Under  the  Business  Corporation  Act,  a  corporation  may not
indemnify an officer or director against liability in connection with a claim by
or in  the right  of  the corporation  in which  such  officer or  director  was
adjudged liable to the corporation or in connection with any other proceeding in
which  the officer  or director  was adjudged  liable for  receiving an improper
personal benefit, however  a corporation  may indemnify  against the  reasonable
expenses  associated  with  such  proceeding. A  corporation  may  not indemnify
against breaches of the duty of  loyalty. The Business Corporation Act  provides
for  mandatory  indemnification  of directors  against  all  reasonable expenses
incurred in the successful  defense of any claim  made or threatened whether  or
not  such claim was  by or in  the right of  the corporation. A  court may order
indemnification if it  determines that  the director  or officer  is fairly  and
reasonably entitled to indemnification in view of all the relevant circumstances
whether  or not the director or officer met the good faith and reasonable belief
standards of conduct  set out  in the statute.  Unless otherwise  stated in  the
Articles  of Incorporation, officers of the corporation are also entitled to the
benefit of the above statutory provisions.
 
    The Business Corporation Act also provides  that the corporation may, by  so
providing  in its  Articles of  Incorporation, eliminate  or limit  the personal
liability of a  director to  the corporation  or its  shareholders for  monetary
damages  for conduct as a director,  provided that the Articles of Incorporation
may not eliminate or limit  liability for any breach  of the director's duty  of
loyalty,  acts  or omissions  not  in good  faith  or which  involve intentional
misconduct or a  knowing violation  of law,  any unlawful  distribution, or  any
transaction from which the director received an improper personal benefit.
 
    In  accordance with Oregon law, the Articles of Incorporation of the Company
provide that  directors are  not personally  liable to  the corporation  or  its
shareholders  for monetary damages for conduct as a director, except for (i) any
breach of  a  director's  duty of  loyalty  to  the corporation,  (ii)  acts  or
omissions not in good faith or which involve intentional misconduct or a knowing
violation  of the law, (iii) any distribution to shareholders which is unlawful,
or (iv) any transaction  from which the director  received an improper  personal
benefit.
 
    The Articles of Incorporation also provide for indemnification of any person
who  is or  was a  party, or  is threatened to  be made  a party,  to any civil,
administrative or criminal proceeding by reason  of the fact that the person  is
or  was a director or officer of the  corporation or any of its subsidiaries, or
is or was  serving at the  request of  the corporation as  a director,  officer,
partner,  agent or employee of another  corporation or entity, against expenses,
including attorneys'  fees, judgments,  fines and  amounts paid  in  settlement,
actually  and reasonably incurred by that person if (i) the person acted in good
faith and  in  a manner  reasonably  believed to  not  be opposed  to  the  best
interests  of the corporation, or  (ii) the act or  omission giving rise to such
action or proceeding is  ratified, adopted or confirmed  by the corporation,  or
the  benefit  thereof  was  received  by  the  corporation.  Indemnification  is
available under this provision of the  Articles of Incorporation in the case  of
derivative  actions,  unless  the person  is  adjudged  to be  liable  for gross
negligence or deliberate misconduct in the  performance of the person's duty  to
the corporation. To the extent a director, officer, employee or agent (including
an  attorney) is successful on the merits  or otherwise in defense of any action
to which this provision is applicable, the person is entitled to indemnification
for expenses actually and reasonably incurred  by the person in connection  with
that defense.
 
                                      II-1
<PAGE>
ITEM 2.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION
 
    The following table sets forth the fees and expenses incurred by the Company
in  connection with  the Offering.  Except for  the SEC  registration fees, NASD
filing fees, and NASDAQ initial listing fees, all expenses are estimates:
 
<TABLE>
<S>                                                                <C>
SEC Registration Fees............................................  $   1,428
NASD Filing Fees.................................................        914
NASDAQ Initial Listing Fee.......................................     20,562
Blue Sky Fees and Expenses (including legal fees)................     10,000
Costs of Printing................................................     30,000
Accounting Fees and Expenses.....................................     40,000
Legal Fees.......................................................    100,000
Miscellaneous Expenses...........................................     47,096
                                                                   ---------
  Total Expenses.................................................  $ 250,000
                                                                   ---------
                                                                   ---------
</TABLE>
 
ITEM 3.  UNDERTAKINGS
 
    The undersigned registrant hereby undertakes that:
 
    (A) Insofar as indemnification for liabilities arising under the  Securities
Act  of 1933 (the "Act") may be permitted to directors, officers and controlling
persons of the registrant  pursuant to the  foregoing provisions, or  otherwise,
the  registrant  has been  advised that  in  the opinion  of the  Securities and
Exchange Commission such indemnification is  against public policy as  expressed
in  the Act  and is,  therefore, unenforceable.  In the  event that  a claim for
indemnification  against  such  liabilities  (other  than  the  payment  by  the
registrant  of expenses incurred  or paid by a  director, officer or controlling
person of  the registrant  in the  successful  defense of  any action,  suit  or
proceeding)  is  asserted by  such director,  officer  or controlling  person in
connection with the securities being registered, the registrant will, unless  in
the opinion of its counsel the matter has been settled by controlling precedent,
submit  to  a  court  of  appropriate  jurisdiction  the  question  whether such
indemnification by it is against public policy as expressed in the Act and  will
be governed by the final adjudication of such issue.
 
    (B)  For determining any liability under  the Act, the registrant will treat
the information  omitted from  the form  of  prospectus filed  as part  of  this
registration  statement in reliance  upon Rule 430A  and contained in  a form of
prospectus filed by the registrant under Rule 424(b)(1), or (4), or 497(h) under
the Act as part  of this registration  statement as of  the time the  Commission
declared it effective.
 
    (C)  For determining any liability under  the Act, the registrant will treat
each post-effective  amendment that  contains  a form  of  prospectus as  a  new
registration statement for the securities offered in the registration statement,
and  that  offering of  the securities  at that  time as  the initial  bona fide
offering of those securities.
 
    (D) The registrant will provide to the Underwriter at the closing  specified
in  the Underwriting Agreement certificates in such denominations and registered
in such names as required by the  Underwriter to permit prompt delivery to  each
purchaser.
 
ITEM 4.  UNREGISTERED SECURITIES ISSUED OR SOLD WITHIN ONE YEAR.
 
    The  registrant has issued or sold  the following securities within one year
prior to filing this registration statement which were not registered under  the
Securities Act of 1933:
 
    None
 
                                      II-2
<PAGE>
ITEM 5.  INDEX TO EXHIBITS.
 
    The  following exhibits are being filed  with this registration statement or
incorporated herein by reference. This list constitutes the Exhibit Index:
 
<TABLE>
<CAPTION>
  EXHIBIT
- -----------
<C>          <S>
        1.0  Form of Underwriting Agreement *
        2.1  Articles of Incorporation of Security Bank Holding Company *
        2.2  Bylaws of Security Bank Holding Company *
        3.0  Specimen Common Stock Certificate *
        6.1  Commercial Lease Agreement, dated September 26, 1995, between George L. and Mary E. Carter and
             Security Mortgage, a Division of Security Bank, relating to the Eugene, Oregon, mortgage office *
        6.2  Commercial Lease, dated November 18, 1988 between South Coast Center and Security Bank, relating to
             the Brookings-Harbor branch *
        6.3  Lease Agreement, dated November 1, 1978, between Philip J. and Ann Keizer and Security Bank,
             relating to the North Bend branch, and Assignment of Lease, dated July 25, 1986 *
        6.4  Termination Allowance Agreement, dated September 28, 1981, and amended December 15, 1988, between
             Security Bank and Charles D. Brummel *
        6.5  Shareholders Agreement between Class A Common and Class B Common Shareholders of Lincoln Security
             Bank *
        6.6  1995 Stock Option Plan of Security Bank Holding Company *
        6.7  Form of Board of Directors Merit Based Compensation Plan *
        6.8  Schedule of 1991 Incentive Bonus Plan *
        6.9  Security Bank Phantom Stock Deferred Compensation Plan *
       10.1  Consent of Black & Co., Inc. *
       10.2  Consent of KPMG Peat Marwick LLP **
       10.3  Consent of Foster Pepper & Shefelman (included in Exhibit 11.0)
       11.0  Opinion of Foster Pepper & Shefelman **
       27.0  Financial Data Schedules **
</TABLE>
 
- ------------------------
 * Filed previously
 
** Filed herewith
 
                                      II-3
<PAGE>
                                   SIGNATURES
 
    In  accordance  with the  requirements of  the Securities  Act of  1933, the
registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements  of filing  on Form  SB-1 and  authorized this  registration
statement  to be signed  on its behalf by  the undersigned, in  the City of Coos
Bay, State of Oregon, on August 30, 1996.
 
                                          SECURITY BANK HOLDING COMPANY
 
                                          By:       /s/  CHARLES D. BRUMMEL
 
                                             -----------------------------------
                                                     Charles D. Brummel,
                                                          PRESIDENT
 
    In accordance with  the requirements  of the  Securities Act  of 1933,  this
registration statement was signed by the following persons in the capacities and
on August 30, 1996:
 
<TABLE>
<S>                                            <C>
            /s/  MARC C. WILLIAMS
- --------------------------------------------
              Marc C. Williams,
        VICE PRESIDENT AND CONTROLLER
         (CHIEF ACCOUNTING OFFICER)
 
            /s/  E. SAMUEL DEMENT                         /s/  WILLIAM A. LANSING
- --------------------------------------------   --------------------------------------------
              E. Samuel Dement,                             William A. Lansing,
                  DIRECTOR                                       DIRECTOR
 
            /s/  RALPH W. GAZELEY                        /s/  KENNETH P. MESSERLE
- --------------------------------------------   --------------------------------------------
              Ralph W. Gazeley,                            Kenneth P. Messerle,
                  DIRECTOR                                       DIRECTOR
 
                                                         /s/  HARRY A. SLACK, JR.
- --------------------------------------------   --------------------------------------------
             Donald L. Goddard,                            Harry A. Slack, Jr.,
                  DIRECTOR                                       DIRECTOR
 
            /s/  THOMAS R. GRAHAM                          /s/  GLENN A. THOMAS
- --------------------------------------------   --------------------------------------------
              Thomas R. Graham,                              Glenn A. Thomas,
                  DIRECTOR                                       DIRECTOR
 
           /s/  KATHLEEN M. KERINS
- --------------------------------------------
             Kathleen M. Kerins,
                  DIRECTOR
</TABLE>
 
                                      II-4

<PAGE>

                                                                    Exhibit 10.2


                                  [Letterhead]






                 CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS



The Board of Directors
Security Bank Holding Company
Coos Bay, Oregon


We consent to the use of our report included herein and to the reference to our
firm under the heading "Experts" in the prospectus.  Our report refers to
changes in accounting for investments in certain debt and equity securities.



                                       /s/ KPMG Peat Marwick LLP


Portland, Oregon
August 13, 1996


<PAGE>

                                                                    Exhibit 11.0

                                  [Letterhead]

August 13, 1996


Board of Directors
Security Bank Holding Company
170 S. Second St.
Coos Bay, Oregon  97420

    Re:  Proposed Public Offering of Security Bank Holding Company Common Stock

Ladies and Gentlemen:

    The undersigned has acted as counsel to Security Bank Holding Company 
(the "Company") in the preparation and filing of a Registration Statement on  
Form SB-1 (the "Registration Statement") under the Securities Act of 1933, as 
amended, covering 402,500 shares (the "Shares") of the Company's Common Stock,
including 52,500 shares that may be sold by the Company upon exercise of an
option granted to the Underwriters to cover over-allotments.

    In the course of our representation we have examined the Registration
Statement, copies of the Articles of Incorporation, Bylaws, and excerpts of
minutes of meetings of the Boards of Directors of the Company.  We have also
received from officers of the Company certain other documents, corporate
records, and representations concerning factual matters.  We have reviewed such
documents and have made such review of laws as we consider necessary for
purposes of this opinion.

    We have relied as to matters of fact upon the above documents and
investigation.  We have assumed without investigation the genuineness of all
signatures and the authenticity of all documents submitted to us as originals
and the conformity to original documents of all documents submitted to us as
certified or photostatic copies.

    Based upon the foregoing and subject to the qualifications and exceptions
heretofore and hereinafter set forth, we are of the opinion that, when the
Registration Statement has been declared effective, the applicable provisions of
state securities laws have been complied with and the Company has issued the
Shares against payment therefor in the manner described the Registration
Statement, the shares will be validly issued and fully paid, and non-assessable.

    The opinion herein expressed are specifically subject to and qualified by
the following:

    This opinion is limited to the present laws of the State of Oregon and the
United States of America and to the facts bearing on this opinion as they exist
on the date of this letter.

    We hereby consent to the filing of this opinion as an Exhibit to the
Registration Statement and to the reference to our firm under the heading "Legal
Matters" in the prospectus.

                                       Very truly yours,

                                       FOSTER PEPPER & SHEFELMAN


<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
STATEMENT FOR THE PERIOD ENDING 6/30/96 UNAUDITED FINANCIAL STATEMENTS FOR THE 
SIX MONTHS ENDED JUNE 30, 1996 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               JUN-30-1996
<CASH>                                       4,454,948
<INT-BEARING-DEPOSITS>                         370,060
<FED-FUNDS-SOLD>                               740,774
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                 70,028,458
<INVESTMENTS-CARRYING>                               0
<INVESTMENTS-MARKET>                                 0
<LOANS>                                     81,991,144
<ALLOWANCE>                                  1,058,736
<TOTAL-ASSETS>                             170,068,251
<DEPOSITS>                                 133,801,070
<SHORT-TERM>                                19,463,060
<LIABILITIES-OTHER>                          1,308,170
<LONG-TERM>                                    644,000
                                0
                                          0
<COMMON>                                    13,811,625
<OTHER-SE>                                      77,624
<TOTAL-LIABILITIES-AND-EQUITY>             170,068,251
<INTEREST-LOAN>                              4,154,819
<INTEREST-INVEST>                            1,998,235
<INTEREST-OTHER>                               327,357
<INTEREST-TOTAL>                             6,480,411
<INTEREST-DEPOSIT>                           2,116,014
<INTEREST-EXPENSE>                           2,625,035
<INTEREST-INCOME-NET>                        3,855,376
<LOAN-LOSSES>                                   90,000
<SECURITIES-GAINS>                              18,492
<EXPENSE-OTHER>                              4,059,054
<INCOME-PRETAX>                              1,105,134
<INCOME-PRE-EXTRAORDINARY>                     825,134
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   825,134
<EPS-PRIMARY>                                     0.36
<EPS-DILUTED>                                     0.36
<YIELD-ACTUAL>                                    5.06
<LOANS-NON>                                    483,000
<LOANS-PAST>                                         0
<LOANS-TROUBLED>                               447,000
<LOANS-PROBLEM>                                  9,900
<ALLOWANCE-OPEN>                             1,062,993
<CHARGE-OFFS>                                  108,235
<RECOVERIES>                                     6,964
<ALLOWANCE-CLOSE>                            1,058,736
<ALLOWANCE-DOMESTIC>                           468,699
<ALLOWANCE-FOREIGN>                                  0
<ALLOWANCE-UNALLOCATED>                        590,037
        

</TABLE>


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