GREENE COUNTY BANCSHARES INC
S-8, 1996-07-23
STATE COMMERCIAL BANKS
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<PAGE>   1
As filed with the Securities and Exchange Commission on July 23, 1996
                                                           Registration No. 33-
- --------------------------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                                    FORM S-8
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

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

                         GREENE COUNTY BANCSHARES, INC.
             (Exact name of registrant as specified in its charter)

<TABLE>
<CAPTION>
<S>                                                <C>       
                  Tennessee                                    62-1222567
(State or other jurisdiction of incorporation     (I.R.S. Employer Identification No.)
                  or organization)
</TABLE>

Main and Depot Streets, Greeneville, Tennessee                      37743
   (Address of principal executive offices)                       (Zip Code)

          INCENTIVE STOCK OPTION PLAN OF GREENE COUNTY BANCSHARES, INC.
                            AND SUBSIDIARIES OF 1995

                         NONQUALIFIED STOCK OPTION PLAN
      GREENE COUNTY BANCSHARES, INC. AND SUBSIDIARIES FOR 1994, AS AMENDED

                         NONQUALIFIED STOCK OPTION PLAN
      GREENE COUNTY BANCSHARES, INC. AND SUBSIDIARIES FOR 1993, AS AMENDED
                            (Full title of the plans)

                           R. Stan Puckett, President
                             Main and Depot Streets
                          Greeneville, Tennessee 37743
                     (Name and address of agent for service)

                                  423/639-5111
          (Telephone number, including area code, of agent for service)

                                    Copy to:
                                 Ann W. Langston
                            Gerrish & McCreary, P.C.
                             700 Colonial, Suite 200
                                Memphis, TN 38117
                                  901/767-0900

                         CALCULATION OF REGISTRATION FEE
<TABLE>
<CAPTION>
================================================================================================================================
                                                                                         Proposed
                                                                  Proposed                maximum
                                                                   maximum               aggregate              Amount of
    Title of securities to be            Amount to be          offering price            offering             registration
            registered                    registered            per share (1)            price (1)               fee (1)
- --------------------------------------------------------------------------------------------------------------------------------
Common Stock, par value
<C>                                  <C>                     <C>                   <C>                     <C>         
$10.00 per share                     32,000 shares           $178.28(1)            $5,705,000(1)           $1,968.00(1)
================================================================================================================================
</TABLE>

(1)      Calculated pursuant to Rule 457(h), solely for the purpose of
         calculating the registration fee, based upon the actual price per share
         of option exercise prices of the options outstanding under the plans
         covered hereby.
<PAGE>   2
                                     PART I
              INFORMATION REQUIRED IN THE SECTION 10(A) PROSPECTUS

Note: The document(s) containing the information specified in Part 1 of Form S-8
will be sent or given to participants in the Incentive Stock Option Plan of
Greene County Bancshares, Inc. and Subsidiaries of 1995, NonQualified Stock
Option Plan Greene County Bancshares, Inc. and Subsidiaries of 1994, as Amended,
and NonQualified Stock Option Plan Greene County Bancshares, Inc. and
Subsidiaries of 1993, as Amended (the "Plans") as specified by Rule 428(b)(1)
promulgated by the Securities and Exchange Commission (the "Commission") under
the Securities Act of 1933, as amended (the "Securities Act").

         Such document(s) are not being filed with the Commission, but
constitute (along with the documents incorporated by reference into the
Registration Statement pursuant to Item 3 of Part II hereof) a prospectus that
meets the requirements of Section 10(a) of the Securities Act.
<PAGE>   3
                                     PART II
               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3.           Incorporation of Documents by Reference.

         The following documents previously filed by Greene County Bancshares,
Inc. (the "Company") with the Commission are hereby incorporated by reference in
this Registration Statement:

(a) the Company's Annual Report on Form 10-K for the year ended December 31,
1995 (File No. 0-14289);

(b) the Company's Quarterly Report on Form 10-Q for the quarter ended March 31,
1996; and

(c) the description of the Common Stock, par value $10.00 per share, of the
Company contained in the Company's Registration Statement on Form S-2 (File No.
333-926) filed with the Commission on February 12, 1996 and all amendments or
reports filed for the purpose of updating such description.

         All documents subsequently filed by the Company with the Commission
pursuant to Sections 13(a), 13(c), 14, or 15(d) of the Exchange Act, after the
date hereof, and prior to the filing of a post-effective amendment which
indicates that all securities offered hereby have been sold or which deregisters
all securities then remaining unsold, shall be deemed incorporated by reference
into this Registration Statement and to be a part thereof from the date of the
filing of such documents. Any statement contained in the documents incorporated,
or deemed to be incorporated, by reference herein shall be deemed to be modified
or superseded for purposes of this Registration Statement to the extent that a
statement contained herein or in any other subsequently filed document which
also is, or is deemed to be, incorporated by reference herein modifies or
supersedes such statement. Any such statement so modified or superseded shall
not be deemed, except as so modified or superseded, to constitute a part of this
Registration Statement.

Item 4.           Description of Securities.

         Not Applicable.

Item 5.           Interests of Named Experts and Counsel.

         The consolidated financial statements of the Company as of December 31,
1995 and 1994 and for each of the years in the three-year period ended December
31, 1995, have been incorporated by reference herein in reliance upon the report
of Coopers & Lybrand L.L.P., independent accountants, which report is included
in the Company's Annual Report on Form 10-K for the period then ended and
incorporated by reference herein upon the authority of such firm as experts in
accounting and auditing.

         Certain legal matters in connection with the issuance of Common Stock
offered hereby are being passed upon for the Registrant by Gerrish & McCreary,
P.C.
<PAGE>   4
Item 6.           Indemnification of Directors and Officers.

         The Tennessee Business Corporation Act (the "Tennessee Act") empowers a
corporation to indemnify an individual made a party to a proceeding because he
is or was a director against liability incurred in the proceeding if: (i) he
conducted himself in good faith; and (ii) he reasonably believed: (a) in the
case of conduct in his official capacity with the corporation, that his conduct
was in its best interests; (b) in all other cases, that his conduct was at least
not opposed to its best interests; and (c) in the case of any criminal
proceeding, he had no reasonable cause to believe his conduct was unlawful.

         The termination of a proceeding by a judgment, order, settlement,
conviction or upon a plea of nolo contendere or its equivalent is not, of
itself, determinative that the director did not meet the required standard of
conduct.

         A corporation may not indemnify a director in connection with: (i) a
proceeding by or in the right of the corporation in which the director was
adjudged liable to the corporation; or (ii) any other proceeding charging
improper personal benefit to him, whether or not involving action in his
official capacity, in which he was adjudged liable on the basis that personal
benefit was improperly received by him.

         Indemnification is limited to reasonable expenses incurred in
connection with the proceeding.

         The Tennessee Act further provides that unless limited by its charter,
a corporation shall indemnify a director who was wholly successful, on the
merits or otherwise, in the defense of any proceeding to which he was a party
because he is or was a director of the corporation against reasonable expenses
incurred by him in connection with the proceeding.

         The Tennessee Act also provides that a corporation may pay for or
reimburse the reasonable expenses incurred by a director who is a party to a
proceeding in advance of final disposition of the proceeding if the director
furnishes the corporation a written: (i) affirmation of his good faith belief
that he has met the required standard of conduct; and (ii) undertaking, executed
personally or on his behalf, to repay the advance if it is ultimately determined
that he is not entitled to indemnification. In addition, a corporation may pay
for or reimburse the reasonable expenses incurred if a determination is made
that the facts then known to those making the determination would not preclude
indemnification.

         A corporation may not indemnify a director unless authorized in the
specific case after the proper determination has been made by the Board of
Directors, by special legal counsel or by the shareholders owning the requisite
number of shares.

         A corporation also may indemnify and advance expenses to an officer,
employee or agent of the corporation who is not a director to the same extent as
a director. The Charter of Greene County Bancshares, Inc. contains the following
indemnification provision:

         The corporation from time to time may provide either directly, or
         indirectly through the purchase of insurance, for the indemnification
         of directors, officers, employees and agents of the corporation and of
         any of its subsidiaries to the fullest extent permitted by law.
<PAGE>   5
         The directors and officers of the Company are covered by an insurance
policy in the amount of $5,000,000 by the CNA insurance company.

Item 7.           Exemption from Registration Claimed.

         Not Applicable.

Item 8.           Exhibits.

<TABLE>
<CAPTION>
                                                                                  Sequential Page
                                                             Reference to          Number Where
                                                            Prior Filing or     Attached Exhibits
      Regulation S-B                                        Exhibit Number        are Located in
      Exhibit Number        Document                        Attached Hereto       This Form S-8

<S>        <C>         <C>                                        <C>             <C>
           4.1         Incentive Stock Option                     4.1             Page
                       Plan of Greene County
                       Bancshares, Inc. and
                       Subsidiaries of 1995

           4.2         NonQualified Stock                         4.2             Page
                       Option Plan
                       Greene County
                       Bancshares, Inc. and
                       Subsidiaries of 1994, as
                       Amended

           4.3         NonQualified Stock                         4.3             Page
                       Option Plan
                       Greene County
                       Bancshares, Inc. and
                       Subsidiaries of 1993, as
                       Amended

            5          Opinion of Gerrish &                        5              Page
                       McCreary, P.C.

           23.1        Consent of Gerrish &                      23.1             Page
                       McCreary, P.C. (contained
                       in Exhibit 5)

           23.2        Consent of Coopers &                      23.2             Page
                       Lybrand L.L.P.

            24         Power of Attorney                     Contained on         Page
                                                            Signature Page
</TABLE>

Item 9.           Undertakings.

(a)      The undersigned Registrant hereby undertakes:

         (1) To file, during any period in which offers or sales are being made,
a post-effective amendment to this registration statement to include any
material information with respect to the plan of distribution not previously
disclosed in the registration statement or any material change to such
information in the registration statement.
<PAGE>   6
         (2) That, for the purpose of determining any liability under the
Securities Act of 1933, each such post-effective amendment shall be deemed to be
a new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

         (3) To remove from registration by means of a post-effective amendment
any of the securities being registered which remain unsold at the termination of
the offering.

(b) The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering hereof.

(c) Insofar as indemnification for liabilities arising under the Securities Act
of 1933 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 of
expenses incurred or paid by a director, officer or controlling person 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.
<PAGE>   7
                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, the
Registrant certifies that it has reasonable grounds to believe that it meets all
the requirements for filing on Form S-8, and the Registrant has duly caused this
Registration Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Greeneville, State of Tennessee, on July 8,
1996.

                                       GREENE COUNTY BANCSHARES, INC.

                                       By: /s/   R. Stan Puckett
                                           ------------------------------------
                                           R. Stan Puckett, President and
                                           Chief Executive Officer

         KNOW ALL MEN BY THESE PRESENTS, that each person whose signature
appears below constitutes and appoints R. Stan Puckett, his true and lawful
attorney-in-fact and agent, with full power of substitution and re-substitution,
for him in his name, place and stead, in any and all capacities, to sign any and
all amendments (including post-effective amendments) to this Registration
Statement, and to file the same, with all exhibits thereto, and all other
documents in connection therewith, with the Securities and Exchange Commission,
granting unto said attorney-in-fact and agent full power and authority to do and
perform each and every act and thing requisite and necessary to be done, as
fully to all intents and purposes as he might or could do in person, hereby
ratifying and confirming said attorney-in-fact and agent or his substitute or
substitutes may lawfully do or cause to be done by virtue hereof.

         Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed below by the following persons in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
<S>                                    <C>
/s/  William F. Richmond               /s/  R. Stan Puckett
- ----------------------------------     ----------------------------------------
William F. Richmond, Senior            R. Stan Puckett, President
    Vice President                     and Chief Executive Officer
and Chief Financial Officer
(Principal Financial Officer and
Principal Accounting Officer)

Date:    July 8, 1996                  Date:    July 8, 1996
</TABLE>

<PAGE>   8
<TABLE>
<CAPTION>
Name                              Capacity                 Date
- ----                              --------                 ----
<S>                               <C>                      <C>
 /s/                              Chairman,                7/8/96
- -----------------------------     Director                 --------------
Harrison Lamons                   

 /s/                              President                7/8/96
- -----------------------------     and Director             --------------
R. Stan Puckett                   

 /s/                              Director                 7/8/96
- -----------------------------                              --------------
Phil M. Bachman, Jr.

 /s/                              Director                 7/8/96
- -----------------------------                              --------------
Helen Horner

 /s/                              Director                 7/8/96
- -----------------------------                              --------------
J.W. Douthat

 /s/                              Director                 7/8/96
- -----------------------------                              --------------
Terry Leonard

 /s/                              Director                 7/8/96
- -----------------------------                              --------------
Ralph T. Brown

 /s/                              Director                 7/8/96
- -----------------------------                              --------------
James A. Emory

 /s/                              Director                 7/8/96
- -----------------------------                              --------------
Patrick Norris

 /s/                              Director                 7/8/96
- -----------------------------                              --------------
Jerald K. Jaynes

 /s/                              Director                 7/8/96
- -----------------------------                              --------------
Charles S. Brooks

 /s/                              Director                 7/8/96
- -----------------------------                              --------------
Davis Stroud

 /s/                              Director                 7/8/96
- -----------------------------                              --------------
W.T. Daniels
</TABLE>

<PAGE>   9
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                             ---------------------
                     
                                    EXHIBITS

                                       TO

                       REGISTRATION STATEMENT ON FORM S-8

                                      UNDER

                           THE SECURITIES ACT OF 1933

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

                         GREENE COUNTY BANCSHARES, INC.
<PAGE>   10
                                  EXHIBIT INDEX

<TABLE>
<CAPTION>
                                                                 Reference to
                                                                 Prior Filing or
  Regulation S-B                                                 Exhibit Number
  Exhibit Number               Document                          Attached Hereto

<S>     <C>         <C>                                          <C>
        4.1         Incentive Stock Option Plan of                     4.1
                    Greene County Bancshares, Inc. and
                    Subsidiaries of 1995

        4.2         NonQualified Stock Option Plan                     4.2
                    Greene County Bancshares, Inc. and
                    Subsidiaries of 1994, as Amended

        4.3         NonQualified Stock Option Plan                     4.3
                    Greene County Bancshares, Inc. and
                    Subsidiaries of 1993, as Amended

         5          Opinion of Gerrish & McCreary, P.C.                 5

       23.1         Consent of Gerrish & McCreary, P.C.               23.1
                    (contained in Exhibit 5)

       23.2         Consent of Coopers & Lybrand L.L.P.               23.2

        24          Power of Attorney                             Contained on
                                                                 Signature Page
</TABLE>

<PAGE>   1
                                                                     EXHIBIT 4.1

                         INCENTIVE STOCK OPTION PLAN OF

                 GREENE COUNTY BANCSHARES, INC. AND SUBSIDIARIES

                                     OF 1995

1.       Purpose of the Plan. This Incentive Stock Option Plan of Greene County
         Bancshares, Inc. and Subsidiaries (the "Plan"), adopted as of December
         13, 1995 is hereby intended to aid Greene County Bancshares, Inc. (the
         "Company"), Greene County Bank, American Fidelity Bank and Premier Bank
         of East Tennessee (the "Banks") in securing and retaining key employees
         of outstanding ability by making it possible to offer them an increased
         incentive in the form of a proprietary interest in the common stock of
         the Company, to join or continue in service of the Company and Banks
         and to increase the welfare and success of the Company and its Banks
         and to assist in attracting the best available individuals to the
         Company and the Banks to serve as officers and directors in the future.
         This Plan shall become effective on the date that it is approved by the
         majority of the shareholders of the Stock present by person or by proxy
         and entitled to vote at the annual meeting or a special meeting of the
         Company.

2.       Definitions. When used herein, the following terms shall have the
         meaning set forth below.

         (a)      "Bank" or "Banks" means the Banks referred to above herein and
                  any other Bank that adopts this plan. Such Banks may be
                  referred to collectively as "Banks" or individually as "Bank"
                  throughout this Plan.

         (b)      "Board" means the Board of Directors of the Company.


<PAGE>   2



         (c)      "Code" means the Internal Revenue Code of 1986, as amended
                  from time to time, and the regulations thereunder.

         (d)      "Committee" means the committee designated by the Board of
                  Directors of the Company to administer the Plan in accordance
                  with the responsibilities and powers described in Paragraph 4
                  of this Plan.

         (e)      "Date of Grant" means the date on which an Incentive Stock
                  Option Award is granted under a written Incentive Stock Option
                  Award Agreement executed by the Company and the Bank and each
                  Participant pursuant to this Plan.

         (f)      "Date of Exercise" means the date upon which the Participant
                  accepts the Bank's offer to purchase the Stock and provides to
                  the Bank written notice of the Participant's intent to
                  exercise the Incentive Stock Option Award and provides full
                  payment for the option price of the option Shares purchased.

         (g)      "Discharge for Cause" means the voluntary or involuntary
                  termination or resignation of a Participant because of his
                  conviction of a crime involving moral turpitude, a gross
                  failure on the part of the Participant to perform his expected
                  duties, or the wilful misconduct or action on the
                  Participant's part that is potentially, materially damaging or
                  detrimental to the Banks. The determination of whether a
                  Participant has incurred a "Discharge for Cause" shall be made
                  by the Committee, on a non-discriminatory basis, whose
                  decision shall be binding and conclusive.

         (h)      "Incentive Stock Option Award" means the granting of an option
                  that meets the requirements of Code Section 421 to purchase
                  shares of Stock, but is subject to the forfeiture and other
                  conditions and restrictions set forth in this Plan or the
                  Incentive Stock Option Award Agreement.


                                       -2-


<PAGE>   3
         (i)      "Incentive Stock Option Award Agreement" means the written
                  agreement in such form as is approved by the Committee, which
                  shall be duly executed by the Company, the Bank which employs
                  the Participant and the Participant and which shall set forth
                  the terms and conditions of the Incentive Stock Option Award
                  as provided under the Plan. Such Agreement may contain any
                  provisions determined at the sole discretion of the Committee,
                  which are not inconsistent with the provisions of this Plan.

         (j)      "Participant" means any officer or director of the Company or
                  Banks who receive an award of an option hereunder as
                  determined by the Committee.

         (k)      "Stock" means the Company's $10 par value common stock.

         (l)      "Subsidiaries" means any wholly owned subsidiary of the
                  Company or a Bank. Any such Subsidiary may adopt this Plan for
                  the benefit of its employees.

3.       Stock Subject to the Plan. The maximum number of shares of Stock with
         respect to which Incentive Stock Option Awards may be granted under
         this Plan shall not exceed thirty thousand (30,000) shares of Stock, to
         be awarded to the Participants as provided herein. The shares of Stock
         may be authorized but unissued shares.

         The value of the shares of Stock which may be exercised for the first
         time by a Participant in any one year under this Plan may not exceed
         $100,000, based on the fair market value of the Stock at the Date of
         Grant.

4.       Administration of the Plan. The Board of Directors of the Company shall
         appoint the members of the Committee. The Committee shall consist of no
         less than two (2) persons, neither of whom shall be Participants in the
         Plan. With respect to the Plan and all Incentive Stock Option Awards
         granted thereunder, the Committee shall have full authority, subject to
         the provisions of the Plan and the Incentive Stock Option 




                                      -3-
<PAGE>   4
         Award Agreement, to interpret the Plan and the Incentive Stock Option
         Award Agreements and to prescribe, amend, and rescind rules and
         regulations relating to the Plan and the Incentive Stock Option award
         Agreements. The Committee shall have full authority, subject to the
         provisions of the Plan and the Incentive Stock Option Award Agreements,
         to determine who shall be a participant and receive options under the
         Plan; to determine the terms (including restrictions and conditions) of
         any such Incentive Stock Option Awards Agreement; to amend or cancel
         Incentive Stock Option awards (subject to the terms of this Plan and
         the Incentive Stock Option Award Agreements); to accelerate the date of
         lapse of restrictions with respect to all or any part of the shares of
         Stock subject to an Incentive Stock Option Award Agreement; and to
         require the cancellation or surrender of any previously granted
         Incentive Stock Option Awards on which the restrictions have not yet
         lapsed under this Plan, such Incentive Stock Option Award Agreement, or
         any other plans of the Bank as condition to the granting of an
         Incentive Stock Option Award. The Board may, from time to time, appoint
         members of the Committee in substitution for or in addition to members
         previously appointed and may fill vacancies, however caused, in the
         Committee. The Board shall select one of the members of the Committee
         to act as its Chairman. The Committee shall hold its meetings at such
         times and places as it shall deem advisable. A majority of its members
         shall constitute a quorum. Any action of the Committee may be taken
         without the need for a meeting by a written instrument signed by all of
         the members of the Committee, and any action so taken shall be fully
         effective as if it had been taken by a vote of a majority of the
         members at a meeting duly called and held. The Committee shall make
         such rules and regulations for the conduct of its business as it shall
         deem advisable and shall appoint a secretary who shall keep minutes of
         its meetings and records of all actions taken in writing without a
         meeting. No member of the Committee shall be liable, in the absence of
         good faith, for any act or omission with respect to his service on the
         Committee.



                                      -4-
<PAGE>   5
5.       Incentive Stock Option Awards. Incentive Stock Option Awards shall be
         granted under the Plan by the Committee in accordance with the
         provisions of this Plan. Incentive Stock Option Awards granted under
         this Plan shall be evidenced by an Incentive Stock Option Award
         Agreement in such form as the Committee may, from time to time,
         determine and shall be subject to the terms, conditions and
         restrictions set forth in this Plan and the Incentive Stock Option
         Award Agreement. Incentive Stock Option Awards shall be granted in
         accordance with the following terms and conditions:

         (a)      Participants to whom Incentive Stock Option Awards may be
                  Granted. Incentive Stock Option Awards will be granted to such
                  Participants determined as provided in Section 2(j) of this
                  Plan, provided that such Participants have an "employment
                  relationship", within the meaning prescribed under Treasury
                  Regulation Section 1.421-7(h), with a Bank or the Company at
                  the time the Incentive Stock Option Award is granted.

         (b)      Price. The purchase price per share of Stock deliverable upon
                  the exercise of an Incentive Stock Option Award shall be not
                  less than one hundred percent (100%) of the "fair market
                  value" of the Stock on the Date of Grant. Notwithstanding the
                  above, if the Participant possesses ten percent (10%) or more
                  of the Stock of the Company (hereinafter referred to as a "10%
                  Shareholder"), the purchase price of the Stock for such
                  Participant shall not be less than one hundred ten percent
                  (110%) of the "fair market value" of the Stock on the Date of
                  Grant. Shares of Stock may be purchased upon full payment of
                  the purchase price provided for in the Incentive Stock Option
                  Award Agreement relating to the Stock. With the consent of the
                  Committee, payment of the purchase price may be made, in whole
                  or in part, through the surrender of shares of Stock of the
                  Company at the "fair market value" of such shares determined
                  in the manner described in Subparagraph (d), hereof; 




                                      -5-
<PAGE>   6
                  provided, however, that the shares have not been acquired
                  through the prior grant of any Incentive Stock Option Awards.

         (c)      Exercise of Options. The Participant may exercise any part of
                  the Incentive Stock Option Award, as limited by Subparagraph
                  (e) of this section, by giving the Bank written notice of the
                  intent to exercise and by delivering the full payment price of
                  the Incentive Stock Option Award for the Stock purchased to
                  the Bank. The written notice of the intent to exercise shall
                  specify the number of shares of Stock to which the option is
                  to be exercised and the purchase price of the Stock. As soon
                  as practicable after the Date of Exercise, the Bank shall
                  deliver to the Participant a certificate, or certificates, for
                  the Stock being purchased.

         (d)      Determining Fair Market Value of Stock. For purposes of this
                  Plan, the term "fair market value" shall mean:

                  (i)      if the Stock is listed or admitted to trade on a
                           national securities exchange, the closing price of
                           the Stock on the composite tape of the principal
                           national securities exchange on which the Stock is so
                           listed or admitted to trade.

                  (ii)     if the Stock is not listed or admitted to trade on a
                           national securities exchange, the mean between the
                           last reported bid and asked price for the Stock as
                           furnished by the National Association of Securities
                           Dealers, Inc. through NASDAQ or a similar
                           organization if NASDAQ is not reporting such
                           information with respect to the Stock; or

                  (iii)    if the Stock is not listed or admitted to trade on a
                           national securities exchange and if bid and asked
                           prices for the Stock are not so furnished through
                           NASDAQ or a similar organization, the fair market
                           value of 



                                      -6-
<PAGE>   7
                           the Stock shall be determined by the Committee,
                           acting in good faith. The Committee may rely on the
                           advice of qualified appraisers or investment advisers
                           in helping to establish the fair market value of the
                           Stock.

         (e)      Terms of Incentive Stock Option Award. In no event shall the
                  Incentive Stock Option Award be exercisable more than ten (10)
                  years from the Date of Grant. Stock options shall become
                  exercisable in five (5) installments after the approval of the
                  Plan by the Company shareholders. The options awarded in Award
                  Agreements hereunder shall vest and the Participant shall have
                  the right to purchase the following number of option shares of
                  Stock upon exercise of the option, on and after the following
                  dates, in cumulative fashion in accordance with the following
                  vesting schedule:

                  (i)      on and after the first anniversary of the Date of
                           Grant, twenty (20%) (ignoring fractional shares) of
                           the total number of option shares;

                  (ii)     On and after the second anniversary of the Date of
                           Grant, forty percent (40%) (ignoring fractional
                           shares) of the total number of option shares less the
                           number of shares previously purchased through options
                           exercised under this Plan;

                  (iii)    On and after the third anniversary of the Date of
                           Grant, sixty (60%) (ignoring fractional shares) of
                           the total number of option shares less the number of
                           shares previously purchased through options exercised
                           under this Plan;

                  (iv)     On and after the fourth anniversary of the Date of
                           Grant, eighty percent (80%) (ignoring fractional
                           shares) of the total number of option shares 




                                      -7-
<PAGE>   8
                           less the number of shares previously purchased
                           through options exercised under this Plan;

                  (v)      On and after the fifth anniversary of the Date of
                           Grant, one hundred percent (100%) (ignoring
                           fractional shares) of the total number of option
                           shares less the number of shares previously purchased
                           through options exercised under this Plan;

         (f)      Termination of Employment. If the Committee determines that a
                  Participant has been Discharged for Cause, all rights under
                  the Participant's Incentive Stock Option Award Agreement shall
                  expire immediately and the Participant's Incentive Stock
                  Option Award shall become null and void and shall no longer be
                  exercisable by the Participant. Unless otherwise provided in a
                  Participant's Incentive Stock Option Award Agreement, upon a
                  Participant's termination of employment with the Bank for any
                  reason other than a Discharge for Cause, his Incentive Stock
                  Option Awards shall be exercisable (to the extent that the
                  Participant has become vested in his Incentive Stock Option
                  Awards prior to the date of the Participant's termination) for
                  a period of three (3) months following the Participant's
                  termination of employment. If the Participant's termination of
                  employment with the Bank results from the Participant's death
                  or disability, the Participant's Incentive Stock Option Awards
                  that have become exercisable as of the date of the
                  Participant's death or disability shall remain exercisable for
                  one (1) year following the date of the Participant's
                  termination of employment with the Bank. For purposes of the
                  above, a Participant shall be deemed to be disabled when the
                  Committee determines, in its sole discretion, that the
                  Participant is unable to engage in any substantial activity by
                  reason of any medically determinable physical or mental
                  impairment which can be expected to result in death or which
                  has lasted or can be expected to last for a continuous period
                  of not less than twelve (12) months.



                                      -8-
<PAGE>   9
                  Under no circumstances may an Incentive Stock Option Award be
                  exercised after the expiration of the Incentive Stock Option
                  Award's term.

6.       Rights of a Shareholder; Nontransferability. A Participant shall have
         no rights as a shareholder of the Company with respect to any shares of
         Stock granted as an Incentive Stock Option Award or covered under an
         Incentive Stock Option Award Agreement until the date of issuance of a
         Stock certificate for such shares. Nothing in this Plan, or in any
         Incentive Stock Option Award Agreement issued or granted, confers on
         any person any right to continue in the employ of the Company, the Bank
         or the Subsidiaries, or to continue to perform services for the
         Company, the Bank or Subsidiaries, or interferes in any way with the
         right of the Company, the Bank and Subsidiaries to terminate the
         services of a Participant as an officer or employee at any time.

         No grant under the Plan or an Incentive Stock Option Award Agreement
         shall be transferable by a Participant other than by laws of descent
         and distribution and may only be exercised during his lifetime by the
         Participant.

7.       Dilution and Other Adjustments. In the event of any merger,
         consolidation, stock dividend, stock split, split-up, combination or
         exchange of shares or recapitalization or change in capitalization, the
         total number of shares set forth in Section 3 shall be proportionately
         and appropriately adjusted. In any such case, the number and kind of
         shares that are subject to any outstanding option hereunder (including
         any option outstanding after termination of employment) and the option
         price per share shall be proportionately and appropriately adjusted
         without any change in the aggregate option price to be paid therefor
         upon the exercise of the option.

8.       Change in Control. If after the effective date hereof either (a), (b),
         or (c) below is to occur, any Participant holding an option hereunder
         shall immediately prior to such event, immediately vest and have the
         right to exercise the option for all shares 




                                      -9-
<PAGE>   10
         optioned thereunder and not previously purchased, irrespective of the
         vesting schedule set forth in Section 5(e) herein and any provision
         under the Award Agreement which would otherwise prohibit such exercise
         at such time:

         (a)      the acquisition ("Acquisition"), directly or indirectly, by
                  any "person" [as such term is defined for purposes of Sections
                  13(d) and 14(d) of the Securities and Exchange Act of 1934
                  "Exchange Act")], other than by the Company or any person so
                  defined who on the effective date hereof is a director of the
                  Banks or the Company or whose shares of stock therein are
                  treated as "beneficially owned" (as such term is defined for
                  purposes of Rule 13d-3 of the Exchange Act) by any such
                  director ("Acquiror"), of the beneficial ownership (as such
                  term is defined for purposes of Section 13(d)(1) of the
                  Exchange Act) of shares of the Company which, when added to
                  any other shares the beneficial ownership of which is held by
                  the Acquiror, shall have twenty percent (20%) or more of the
                  combined voting power of the Company's then outstanding
                  securities; or

         (b)      the occurrence of any merger, consolidation or reorganization
                  to which the Company or the Banks are a party and pursuant to
                  which the Company or the Banks (or an entity controlled
                  thereby) are not a surviving entity, or the sale of all or
                  substantially all of the assets of the Corporation or the
                  Banks; or

         (c)      the occurrence of a change in control of the Company or the
                  Banks of the nature that would be required to be reported in
                  response to Item 5(j) of Schedule 14A of Regulation 14A under
                  the Exchange Act, or in response to the regulations of the
                  Federal Reserve Board or the FDIC or any other federal
                  regulatory agency having authority over the business
                  operations of the Corporation or the Banks.




                                      -10-
<PAGE>   11
         Notwithstanding the foregoing provisions of this Section, in the event
         of a change in control as defined above, the Committee may in its sole
         discretion declare that the Options granted under the Plan, with 100%
         vesting as provided above, are canceled and provide a cash-out payment
         equal to the value (fair market value of the stock less the exercise
         price of the option times the number of shares subject to options not
         previously exercised) of all Incentive Stock Options granted to each
         Participant.

9.       Withholding. The Bank shall have the right to deduct from any amount
         otherwise payable to a Participant the amount of any taxes which the
         Bank is or will be required to withhold, as and when required by law,
         with respect to any Incentive Stock Option Award granted hereto. In the
         event the total amount otherwise payable by the Bank to such
         Participant is insufficient to provide the Bank with the taxes which it
         is required to withhold, then the Bank shall have the right to require
         the Participant to pay the Bank the amount of such excess amounts
         before any certificates of Stock will be delivered to the Participant.

         In the alternative, the Bank shall have the right to require the
         Participant to remit to the Bank an amount sufficient to satisfy any
         federal, state and/or local withholding tax requirements prior to the
         delivery of any certificate or certificates for such stock.

10.      Amendment of the Plan. The Plan may be amended by the Board at any time
         and from time to time. Notwithstanding the above, no such amendment or
         cancellation of the Plan or any Incentive Stock Option Award Agreement
         granted under the Plan shall impair any of the rights or economic
         benefits previously accrued by any Participant, without his consent,
         under any Incentive Stock Option Award Agreement theretofore granted
         under the Plan.

11.      Termination of the Plan. The right to grant Incentive Stock Option
         Awards under the Plan will terminate on the date that is the later of
         ten (10) years from the date this Plan is executed or the date that all
         Stock Option Awards have been exercised. 




                                      -11-
<PAGE>   12
         Notwithstanding the above, the Bank and Subsidiaries have the right to
         suspend or terminate the Plans at any time prior to the above date,
         provided that no such action will, without the consent of a
         Participant, adversely affect such Participant's rights under a
         previously granted Incentive Stock Option Award Agreement.

12.      Securities Laws Compliance. The Company's, the Bank's and/or
         Committee's obligation to sell and/or deliver Stock under any Incentive
         Stock Option Award Agreement granted under the Plan is subject to such
         compliance with federal, state, administrative or quasi-administrative
         requirements, laws, rules and regulations applying to the
         authorization, issuance or sale of securities as the Company and the
         Bank or Committee deem necessary or advisable. The Committee may, if it
         shall deem it necessary or desirable, require a Participant to submit
         appropriate representations in writing to the Bank, or a written
         investment letter prior to the delivery of any shares of Stock pursuant
         to the exercise of an Incentive Stock Option Award.

13.      Loans or Bonuses to Participants. If approved by the Committee and in
         accordance with applicable law, the Bank may lend money or grant a
         bonus to a Participant to either assist the Participant in financing
         the exercise or making the required tax deposits related to an
         Incentive Stock Option Award granted under the Plan.

14.      Applicable Law. Except as otherwise preempted by federal law in
         accordance with the Employee Retirement Income Security Act of 1974, as
         amended, the Plan will be administered in accordance with the laws of
         the State of Tennessee.

15.      Reporting Obligations. On or before January 31 of the year following
         the exercise of the Incentive Stock Option Award, the Bank or
         Subsidiary must provide the Participant with a statement regarding the
         value of the Stock at the Date of Exercise, the Date of Grant and other
         pertinent information.




                                      -12-
<PAGE>   13
16.      Other Provisions. As used in this Plan, the Incentive Stock Option
         Award Agreements and any other documents prepared in implementation of
         the Plan, references in the singular or plural shall refer to the
         plural or singular as the identity of the person or persons or entity
         or entities being referred to may require. The captions used in the
         Plan, the Incentive Stock Option Award Agreements, and such other
         documents are for convenience only and shall not affect the meaning of
         any provisions hereof or thereof.

17.      Restated Plan. This Plan restates, amends, and ratifies to the extent
         it is not revised herein, the Incentive Stock Option Plan of Greene
         County Bancshares, Inc. and Subsidiaries adopted in 1995.


(CORPORATE SEAL)

<TABLE>
<CAPTION>
Attest:                                              GREENE COUNTY BANCSHARES,
                                                     INC.

<S>                                                  <C>    
By:  /s/ Davis Stroud
     -----------------------------------
Printed Name:  Davis Stroud                          By:  /s/ Stan Puckett
             ---------------------------                  ----------------------------------
Secretary:  Davis Stroud                             Printed Name:  Stan Puckett
          ------------------------------                            ------------------------
                                                     Title:  President & CEO
                                                             -------------------------------

Attest:                                              GREENE COUNTY BANK

By:  /s/ Davis Stroud                                By:  /s/ Stan Puckett
     -----------------------------------                 -----------------------------------
Printed Name:  Davis Stroud                          Printed Name:  Stan Puckett
             ---------------------------                            ------------------------
Secretary:  Davis Stroud                             Title:     President & CEO
          ------------------------------                        ----------------------------

Attest:                                              AMERICAN FIDELITY BANK

By:  /s/ James I. Stalsworth                         By:  /s/ Bradford M. Sayles
     -----------------------------------
Printed Name:  James I. Stalsworth                   Printed Name:  Bradford M. Sayles
            ----------------------------                            ------------------------
Secretary:  & Executive V.P.                         Title:     President and CEO
          ------------------------------                        ----------------------------

                                                     PREMIER BANK OF EAST
Attest:                                              TENNESSEE
</TABLE>



                                      -13-
<PAGE>   14

<TABLE>
<S>                                                  <C>    
By:  /s/ Bob Dixon                                   By:  /s/ William C. Adams, Jr.
     --------------------------------                     ---------------------------------
Printed Name:  Bob Dixon                             Printed Name:  William C. Adams, Jr.
               ----------------------                               -----------------------
Secretary:  Secretary & Senior V.P.                  Title:     President & CEO
            -------------------------                           ---------------------------
</TABLE>





                                      -14-


<PAGE>   1
                                                                     EXHIBIT 4.2

                         INCENTIVE STOCK OPTION PLAN OF

                         GREENE COUNTY BANCSHARES, INC.

                                AND SUBSIDIARIES

1.       Purpose of the Plan. This Incentive Stock Option Plan of Greene County
         Bancshares, Inc. and Subsidiaries (the "Plan"), adopted on this
         December 13, 1994 day of 1994 is hereby intended to encourage certain
         officers and directors of Greene County Bancshares, Inc., and
         Subsidiaries (the "Bank and Subsidiaries") to put forth maximum effort
         for the continued success and growth of the Bank and Subsidiaries, to
         aid in retaining individuals who put forth such efforts, and to assist
         in attracting the best available individuals to the Bank and
         Subsidiaries to serve as officers and directors in the future. This
         Plan shall become effective on the date that it is approved by the
         majority of the shareholders of the Stock present by person or by proxy
         and entitled to vote at the annual meeting or a special meeting of the
         Bank and Subsidiaries.

2.       Definitions. When used herein, the following terms shall have the
         meaning set forth below:

         (a)      "Board" means the Board of Directors of the Bank and
                  Subsidiaries.

         (b)      "Code" means the Internal Revenue Code of 1986, as amended
                  from time to time, and the regulations thereunder.

         (c)      "Committee" means the committee designated by the Board to
                  administer the Plan in accordance with the responsibilities
                  and powers described in Paragraph 4 of the Plan.

         (d)      "Date of Grant" means the December 31, 1994 date on which an
                  Incentive Stock Option Award is granted under a written
                  Incentive Stock Option Award Agreement executed by the Bank
                  and Subsidiaries and each Participant pursuant to this Plan.


<PAGE>   2



         (e)      "Date of Exercise" means the date upon which the Participant
                  accepts the Bank or Subsidiaries' offer to purchase the Stock
                  and provides to the Bank written notice of the Participant's
                  intent to exercise the Incentive Stock Option Award and
                  provides full payment for the option price of the option
                  Shares purchased.

         (f)      "Discharge for Cause" means the voluntary or involuntary
                  termination or resignation of a Participant because of his
                  conviction of a crime involving moral turpitude, a gross
                  failure on the part of the Participant to perform his expected
                  duties, or the wilful misconduct or action on the
                  Participant's part that is potentially, materially damaging or
                  detrimental to the Bank and Subsidiaries. The determination of
                  whether a Participant has incurred a "Discharge for Cause"
                  shall be made by the Committee, on a non-discriminatory
                  basis, whose decision shall be binding and conclusive.

         (g)      "Incentive Stock Option Award" means the granting of an option
                  that meets the requirements of Code Section 421 to purchase
                  shares of Stock, but is subject to the forfeiture and other
                  conditions and restrictions set forth in this Plan or the
                  Incentive Stock Option Award Agreement.

         (h)      "Incentive Stock Option Award Agreement" means the written
                  agreement in such form as is approved by the Committee, which
                  shall be duly executed by the Bank and Subsidiaries and the
                  Participant and which shall set forth the terms and conditions
                  of the Incentive Stock Option Award as provided under the
                  Plan.

         (i)      "Participant" means the following officers or directors of the
                  Bank and Subsidiaries who receive an Incentive Stock Option
                  Award and participate in this Plan:

                           (i)      J. Robert Grubbs;
                           (ii)     Davis Stroud;
                           (iii)    Alex Johnson;
                           (iv)     Hugh Wells;
                           (v)      James I. Stalsworth;

                                       -2-


<PAGE>   3




                           (vi)     Allen Jones;
                           (vii)    Bradford M. Sayles;
                           (viii)   Steve Ottinger;
                           (ix)     John McGuffin;
                           (x)      Randy Humphreys;
                           (xi)     Charles Fisher.

         (j)      "Stock means the Bank and Subsidiaries's common stock.

3.       Stock Subject to the Plan. The maximum number of shares of Stock with
         respect to which Incentive Stock Option Awards may be granted under
         this Plan shall not exceed one thousand (1,000) shares, to be divided
         among the Participants by the amount that each Participant's
         compensation bears to the total compensation of all Participants,
         subject to adjustment in accordance with Paragraph 7. The shares of
         Stock may be authorized but unissued Stock.

         The value of the shares of Stock which may be exercised for the first
         time by a Participant in any one year under this Plan may not exceed
         $100,000, based on the fair market value of the Stock at the Date of
         Grant.

4.       Administration of the Plan. The Board shall appoint the members of the
         Committee. The Committee shall consist of no less than two (2) persons,
         neither of whom shall be Participants in the Plan. With respect to the
         Plan and all Incentive Stock Option Awards granted thereunder, the
         Committee shall have full authority, subject to the provisions of the
         Plan and the Incentive Stock Option Award Agreement, to interpret the
         Plan and the Incentive Stock Option Award Agreements and to prescribe,
         amend, and rescind rules and regulations relating to the Plan and the
         Incentive Stock Option Award Agreements. The Committee shall have full
         authority, subject to the provisions of the Plan and the Incentive
         Stock Option Award Agreements, to determine the terms (including
         restrictions and conditions) of any such Incentive Stock Option Awards
         Agreement; to amend or cancel Incentive Stock Option Awards 




                                       -3-
<PAGE>   4
         (subject to the terms of this Plan and the Incentive Stock Option Award
         Agreements); to accelerate the date of lapse of restrictions with
         respect to all or any part of the shares of Stock subject to an
         Incentive Stock Option Award Agreement; and to require the cancellation
         or surrender of any previously granted Incentive Stock Option Awards on
         which the restrictions have not yet lapsed under this Plan, such
         Incentive Stock Option Award Agreement, or any other plans of the Bank
         and Subsidiaries as condition to the granting of an Incentive Stock
         Option Award. The Board may, from time to time, appoint members of the
         Committee in substitution for or in addition to members previously
         appointed and may fill vacancies, however caused, in the Committee. The
         Board shall select one of the members of the Committee to act as its
         Chairman. The Committee shall hold its meetings at such times and
         places as it shall deem advisable. A majority of its members shall
         constitute a quorum. Any action of the Committee may be taken without
         the need for a meeting by a written instrument signed by all of the
         members of the Committee, and any action so taken shall be fully
         effective as if it had been taken by a vote of a majority of the
         members at a meeting duly called and held. The Committee shall make
         such rules and regulations for the conduct of its business as it shall
         deem advisable and shall appoint a secretary who shall keep minutes of
         its meetings and records of all actions taken in writing without a
         meeting. No member of the Committee shall be liable, in the absence of
         good faith, for any act or omission with respect to his service on the
         Committee.

5.       Incentive Stock Option Awards. Incentive Stock Option Awards shall be
         granted under the Plan by the Committee in accordance with the
         provisions of this Plan. Incentive Stock Option Awards granted under
         this Plan shall be evidenced by an Incentive Stock Option Award
         Agreement in such form as the Committee may, from time to time,
         determine and shall be subject to the terms, conditions and
         restrictions set forth in this Plan and the Incentive Stock Option
         Award Agreement. Incentive Stock Option Awards shall be granted in
         accordance with the following terms and conditions:



                                       -4-


<PAGE>   5

         (a)      Participants to whom Incentive Stock Option Awards may be
                  Granted. Incentive Stock Option Awards will be granted to such
                  of the Participants listed in Section 2(h) of the Plan,
                  provided that such Participants have an "employment
                  relationship", within the meaning prescribed under Treasury
                  Regulation Section 1.421-7(h), with the Bank or Subsidiaries
                  at the time the Incentive Stock Option Award is granted.

         (b)      Price. The purchase price per share of Stock deliverable upon
                  the exercise of an Incentive Stock Option Award shall be one
                  hundred percent (100%) of the "fair market value" of the Stock
                  on the Date of Grant. Notwithstanding the above, if the
                  Participant possesses stock of the Bank and Subsidiaries which
                  represents more than ten percent (10%) of the combined voting
                  power of all classes of stock of the Bank and Subsidiaries
                  (hereinafter referred to as a "10% Shareholder"), the purchase
                  price of the Stock for such Participant shall not be less than
                  one hundred ten percent (110%) of the "fair market value" of
                  the Stock on the Date of Grant. Shares of Stock may be
                  purchased upon full payment of the purchase price provided for
                  in the Incentive Stock Option Award Agreement relating to the
                  Stock. With the consent of the Committee, payment of the
                  purchase price may be made, in whole or in part, through the
                  surrender of shares of Stock of the Bank and Subsidiaries at
                  the "fair market value" of such shares determined in the
                  manner described in Subparagraph (d), hereof; provided,
                  however, that the shares have not been acquired through the
                  prior grant of any Incentive Stock Option Awards.

         (c)      Exercise of Options. The Participant may exercise any part of
                  the Incentive Stock Option Award, as limited by Subparagraph
                  (e) of this section, by giving the Bank or Subsidiary written
                  notice of the intent to exercise and by delivering the full
                  payment price of the Incentive Stock Option Award for the
                  Stock purchased to the Bank or Subsidiary. The written notice
                  of the intent to exercise shall specify the number of shares
                  of Stock to which the option is to 




                                      -5-
<PAGE>   6
                  be exercised and the purchase price of the Stock. As soon as
                  practicable after the Date of Exercise, the Bank or
                  Subsidiaries shall deliver to the Participant a certificate,
                  or certificates, for the Stock options being purchased.

         (d)      Determining Fair Market Value of Stock. For purposes of this
                  Plan, the term "fair market value" shall mean:

                  (i)      if the Stock is listed or admitted to trade on a
                           national securities exchange, the closing price of
                           the Stock on the composite tape of the principal
                           national securities exchange on which the Stock is so
                           listed or admitted to trade.

                  (ii)     if the Stock is not listed or admitted to trade on a
                           national securities exchange, the mean between the
                           last reported bid and asked price for the Stock as
                           furnished by the National Association of Securities
                           Dealers, Inc. through NASDAQ or a similar
                           organization if NASDAQ is not reporting such
                           information with respect to the Stock; or

                  (iii)    if the Stock is not listed or admitted to trade on a
                           national securities exchange and if bid and asked
                           prices for the Stock are not so furnished through
                           NASDAQ or a similar organization, the fair market
                           value of the Stock shall be determined by the
                           Committee, acting in good faith. The Committee may
                           rely on the advice of qualified appraisers or
                           investment advisers in helping to establish the
                           fair market value of the Stock.

         (e)      Terms of Incentive Stock Option Awards. In no event shall the
                  Incentive Stock Option Award be exercisable more than ten (10)
                  years from the Date of Grant. Stock options shall become
                  exercisable in five (5) installments. The Participant shall
                  have the right to purchase from the Bank and Subsidiaries the



                                      -6-
<PAGE>   7
                  following number of option shares upon exercise of the option,
                  on and after the following dates, in cumulative fashion:

                  (i)      on and after the first anniversary of the Date of
                           Grant, up to twenty percent (20%) (ignoring
                           fractional shares) of the total number of option
                           shares;

                  (ii)     on and after the second anniversary of the Date of
                           Grant, up to forty percent (40%) (ignoring fractional
                           shares) of the total number of option shares less the
                           number of shares previously purchased through options
                           exercised under this Plan;

                  (iii)    on and after the third anniversary of the Date of
                           Grant, up to sixty percent (60%) (ignoring fractional
                           shares) of the total number of option shares less the
                           number of shares previously purchased through options
                           exercised under this Plan;

                  (iv)     on and after the fourth anniversary of the Date of
                           Grant, up to eighty percent (80%) (ignoring
                           fractional shares) of the total number of option
                           shares less the number of shares previously purchased
                           through options exercised under this Plan.

                  (v)      on and after the fifth anniversary of the Date of
                           Grant, up to one hundred percent (100%) (ignoring
                           fractional shares) of the total number of option
                           shares less the number of shares previously purchased
                           through options exercised under this Plan.

         (f)      Termination of Employment. If the Committee determines that a
                  Participant has been Discharged for Cause, all rights under
                  the Participant's Incentive Stock Option Award Agreement shall
                  expire immediately and the Participant's 




                                      -7-
<PAGE>   8
                  Incentive Stock Option Award shall become null and void and
                  shall no longer be exercisable by the Participant. Unless
                  otherwise provided in a Participant's Incentive Stock Option
                  Award Agreement, upon a Participant's termination of
                  employment with the Bank and Subsidiaries for any reason other
                  than a Discharge for Cause, his Incentive Stock Option Awards
                  shall be exercisable (to the extent that the Participant has
                  become vested in his Incentive Stock Option Awards prior to
                  the date of the Participant's termination) for a period of
                  three (3) months following the Participant's termination of
                  employment. If the Participant's termination of employment
                  with the Bank and Subsidiaries results from the Participant's
                  death or disability, the Participant's Incentive Stock Option
                  Awards that have become exercisable as of the date of the
                  Participant's death or disability shall remain exercisable for
                  one (1) year following the date of the Participant's
                  termination of employment with the Bank and Subsidiaries. For
                  purposes of the above, a Participant shall be deemed to be
                  disabled when the Committee determines, in its sole
                  discretion, that the Participant is unable to engage in any
                  substantial activity by reason of any medically determinable
                  physical or mental impairment which can be expected to result
                  in death or which has lasted or can be expected to last for a
                  continuous period of not less than twelve (12) months.

                  Under no circumstances may an Incentive Stock Option Award be
                  exercised after the expiration of the Incentive Stock Option
                  Award's term.

6.       Rights of a Shareholder; Nontransferability. A Participant shall have
         no rights as a shareholder of the Company with respect to any shares of
         Stock granted as an Incentive Stock Option Award or covered under an
         Incentive Stock Option Award Agreement until the date of issuance of a
         Stock certificate for such shares. Nothing in this Plan, or in any
         Incentive Stock Option Award Agreement issued or granted, confers on
         any person any right to continue in the employ of the Bank and
         Subsidiaries, or to continue to perform services for the Bank and
         Subsidiaries, or 




                                      -8-
<PAGE>   9
         interferes in any way with the right of the Bank and Subsidiaries to
         terminate the services of a Participant as an officer or employee at
         any time.

         No grant under the Plan or an Incentive Stock Option Award Agreement
         shall be transferable by a Participant other than by laws of descent
         and distribution and may only be exercised during his lifetime by the
         Participant.

7.       Dilution and Other Adjustments. In the event of any change in the
         outstanding shares of Stock by reason of any stock dividend or split,
         recapitalization, merger, consolidation, spinoff, reorganization,
         combination or exchange of shares, or other similar corporate change,
         the Committee shall make such adjustment to previously granted
         Incentive Stock Option Awards, if any, as it, in its sole discretion,
         deems equitable in the:

         (a)      aggregate number of kind of shares of stock that may be
                  awarded under the Plan;

         (b)      aggregate number of kind of shares of stock covered by grants
                  already made under the Plan as of such date; and

         (c)      purchase price of outstanding Incentive Stock Option Awards.

         Any such adjustment may provide for the elimination of any fractional
         shares of Stock which might otherwise become subject to an Incentive
         Stock Option Award.

8.       Change in Control. If the Bank and Subsidiaries shall be party to any
         reorganization in which it does not survive, involving merger,
         consolidation, or acquisition of the stock or substantially all the
         assets of the Bank and Subsidiaries including a "change in control" of
         the Bank and Subsidiaries within the meaning of Section 280G of the
         Code, the Board, in its discretion, may:




                                      -9-
<PAGE>   10
         (a)      declare that all Options granted under the Plan shall become
                  exercisable immediately notwithstanding the provisions of the
                  respective Stock Option Award Agreements regarding
                  exercisability, and that all such Options shall terminate
                  thirty (30) days after the Board gives written notice of the
                  immediate right to exercise all such Options and of the
                  decision to terminate all Options not exercised within such
                  thirty (30) day period;

         (b)      declare that all options granted under the Plan shall become
                  100% vested immediately before the date of the change in
                  control;

         (c)      declare that all options are canceled and provide a cash out
                  equal to the value (fair market value less exercise price
                  times number of shares not previously exercised under the
                  option) of all (or only all vested) Incentive Stock Option
                  Awards granted to each Participant; or

         (d)      notify all Participants that all Options granted under the
                  Plan shall be assumed by the successor corporation or
                  substituted with options issued by such successor corporation.

9.       Withholding. The Bank and Subsidiaries shall have the right to deduct
         from any amount otherwise payable to a Participant the amount of any
         taxes which the Bank and Subsidiaries is or will be required to
         withhold, as and when required by law, with respect to any Incentive
         Stock Option Award granted hereto. In the event the total amount
         otherwise payable by the Bank and Subsidiaries to such Participant is
         insufficient to provide the Bank and Subsidiaries with the taxes which
         it is required to withhold, then Bank and Subsidiaries shall have the
         right to require the Participant to pay the Bank and Subsidiaries the
         amount of such excess amounts before any certificates of Stock will be
         delivered to the Participant.




                                      -10-
<PAGE>   11
         In the alternative, the Bank and Subsidiaries shall have the right to
         require the Participant to remit to the Bank and Subsidiaries an amount
         sufficient to satisfy any federal, state and/or local withholding tax
         requirements prior to the delivery of any certificate or certificates
         for such stock.

10.      Amendment of the Plan. The Plan may be amended by the Board at any time
         and from time to time. Notwithstanding the above, no such amendment or
         cancellation of the Plan or any Incentive Stock Option Award Agreement
         granted under the Plan shall impair any of the rights or economic
         benefits previously accrued by any Participant, without his consent,
         under any Incentive Stock Option Award Agreement theretofore granted
         under the Plan.

11.      Termination of the Plan. The right to grant Incentive Stock Option
         Awards under the Plan will terminate on the date that is the later of
         ten (10) years from the date this Plan is executed or the date that all
         Stock Option Awards have been exercised. Notwithstanding the above, the
         Bank and Subsidiaries have the right to suspend or terminate the Plans
         at any time prior to the above date, provided that no such action will,
         without the consent of a Participant, adversely affect such
         Participant's rights under a previously granted Incentive Stock Option
         Award Agreement.

12.      Securities Laws Compliance. The Bank's and Subsidiaries's and/or
         Committee's obligation to sell and/or deliver Stock under any Incentive
         Stock Option Award Agreement granted under the Plan is subject to such
         compliance with federal, state, administrative or quasi-administrative
         requirements, laws, rules and regulations applying to the
         authorization, issuance or sale of securities as the Bank and
         Subsidiaries or Committee deem necessary or advisable. The Committee
         may, if it shall deem it necessary or desirable, require a Participant
         to submit appropriate representations in writing to the Bank and
         Subsidiaries, or a written investment letter prior to the delivery of
         any shares of Stock pursuant to the exercise of an Incentive Stock
         Option Award.




                                      -11-
<PAGE>   12
13.      Loans or Bonuses to Participants. If approved by the Committee, the
         Bank and Subsidiaries may lend money, guarantee a loan by a third
         party, or grant a bonus to a Participant to either assist the
         Participant in financing the exercise or making the required tax
         deposits related to an Incentive Stock Option Award granted under the
         Plan.

14.      Applicable Law. Except as otherwise preempted by federal law in
         accordance with the Employee Retirement Income Security Act of 1974, as
         amended, the Plan will be administered in accordance with the laws of
         the State of Tennessee.

15.      Reporting Obligations. On or before January 31 of the year following
         the exercise of the Incentive Stock Option Award, the Bank or
         Subsidiary must provide the Participant with a statement regarding the
         value of the Stock at the Date of Exercise, the Date of Grant and other
         pertinent information.

16.      Other Provisions. As used in this Plan, the Incentive Stock Option
         Award Agreements and any other documents prepared in implementation of
         the Plan, references in the singular or plural shall refer to the
         plural or singular as the identity of the person or persons or entity
         or entities being referred to may require. The captions used in the
         Plan, the Incentive Stock Option Award Agreements, and such other
         documents are for convenience only and shall not affect the meaning of
         any provisions hereof or thereof.

(CORPORATE SEAL)                            GREENE COUNTY BANCSHARES, INC.

Attest:                                     By:  /s/ R. Stan Puckett
                                                 ------------------------------
 /s/                                        Title:  President & CEO
- -------------------------------                   ------------------------------
         (Secretary)




                                      -12-
<PAGE>   13
                                                                     EXHIBIT 4.2
                                                                       Continued

                               FIRST AMENDMENT TO
                         INCENTIVE STOCK OPTION PLAN OF
                       GREENE COUNTY BANCSHARES, INC. AND
                              SUBSIDIARIES OF 1994

         This First Amendment to First Amendment to Incentive Stock Option Plan
of Greene County Bancshares, Inc. and Subsidiaries of 1994 (the "Option Plan")
adopted for the benefit of certain employees of Greene County Bank and American
Fidelity Bank (the "Banks") is executed on the 23rd day of April, 1996.

         WHEREAS, the Option Plan was adopted in 1994 and options were granted
under such Option Plans to certain employees; and

         WHEREAS, the Boards of Greene County Bancshares, Inc. and the Banks
wish to amend such Option Plan as follows:

         1. The definition of "Incentive Stock Option Award" in Section 2(g) is
amended to provide as follows:

                  "Incentive Stock Option Award" means the granting of an option
                  that is subject to the forfeiture and other conditions and
                  restrictions set forth in this Plan on the Incentive Stock
                  Option Award Agreement."

         2.       Section 5(e) of the Plan is amended to provide as follows:

                  "(e)     Terms of Incentive Stock Option Awards.  In no event
                  shall the Incentive Stock Option Award be exercisable more
                  than ten (10) years from the Date of Grant.  Stock options
                  shall be exercisable immediately from their Date of Grant."

         3.       The following Section 17 is added to the Option Plan:

                  "17(a) Notwithstanding any provision to the contrary herein,
                  in the event this Plan is not submitted to the shareholders of
                  Greene County Bancshares, Inc. for approval as required in
                  Section 1 of this Option Plan and Section 422 of the Internal
                  Revenue Code, this Plan shall be a nonqualified stock option
                  plan and shall be effective as if its date of adoption.

                  "(b)     In such event this Plan shall be known as the
                  Nonqualified Stock Option Plan Greene County Bancshares,
                  Inc. 




<PAGE>   14
                  and Subsidiaries for 1994 and the Agreements with the
                  participants for option issued under the Plan shall be
                  referred to as the "Nonqualified Stock Option Award Agreement
                  of 1994." The effective date of the Agreement shall be
                  December 31, 1994, the date such options were granted to the
                  employees (the "Date of Grant"). Wherever in the Plan the term
                  'Incentive Option' appears, it shall be replaced by the term
                  'Nonqualified Option.'"

         4. The remaining provisions of the Option Plan shall continue in full
force and effect.

                                      GREENE COUNTY BANCSHARES, INC.

                                      By: /s/
                                          ----------------------------
                                      Printed Name: Stan Puckett
                                                    ------------------
                                      Title:    President & CEO
                                                ----------------------


                                      GREENE COUNTY BANK

                                      By: /s/
                                          ----------------------------
                                      Printed Name: Stan Puckett
                                                    ------------------
                                      Title:    President & CEO
                                                ----------------------

                                      AMERICAN FIDELITY BANK

                                      By: /s/
                                          ----------------------------
                                      Printed Name: Bradford M. Sayles
                                                    ------------------
                                      Title:    President & CEO
                                                ----------------------



                                       -2-



<PAGE>   1
                                                                     EXHIBIT 4.3

                         INCENTIVE STOCK OPTION PLAN OF

                         GREENE COUNTY BANCSHARES, INC.

                                AND SUBSIDIARIES

1. Purpose of the Plan. This Incentive Stock Option Plan of Greene County
Bancshares, Inc. and Subsidiaries (the "Plan"), adopted on this 9th day of
September, 1993, is hereby intended to encourage certain officers and directors
of Greene County Bancshares, Inc., and Subsidiaries (the "Bank and
Subsidiaries") to put forth maximum effort for the continued success and growth
of the Bank and Subsidiaries, to aid in retaining individuals who put forth such
efforts, and to assist in attracting the best available individuals to the Bank
and Subsidiaries to serve as officers and directors in the future. This Plan
shall become effective on the date that it is approved by the majority of the
shareholders of the Stock present by person or by proxy and entitled to vote at
the annual meeting or a special meeting of the Bank and Subsidiaries.

2. Definitions. When used herein, the following terms shall have the meaning set
forth below:

         (a) "Board" means the Board of Directors of the Bank and Subsidiaries.

         (b) "Code" means the Internal Revenue Code of 1986, as amended from
         time to time, and the regulations thereunder.

         (c) "Committee" means the committee designated by the Board to
         administer the Plan in accordance with the responsibilities and powers
         described in Paragraph 4 of the Plan.


<PAGE>   2



         (d) "Date of Grant" means the December 31, 1993 date on which an
         Incentive Stock Option Award is granted under a written Incentive Stock
         Option Award Agreement executed by the Bank and Subsidiaries and each
         Participant pursuant to this Plan.

         (e) "Date of Exercise" means the date upon which the Participant
         accepts the Bank or Subsidiaries' offer to purchase the Stock and
         provides to the Bank written notice of the Participant's intent to
         exercise the Incentive Stock Option Award and provides full payment for
         the option price of the option Shares purchased.

         (f) "Discharge for Cause" means the voluntary or involuntary
         termination or resignation of a Participant because of his conviction
         of a crime involving moral turpitude, a gross failure on the part of
         the Participant to perform his expected duties, or the wilful
         misconduct or action on the Participant's part that is potentially,
         materially damaging or detrimental to the Bank and Subsidiaries. The
         determination of whether a Participant has incurred a "Discharge for
         Cause" shall be made by the Committee, on a non-discriminatory basis,
         whose decision shall be binding and conclusive.

         (g) "Incentive Stock Option Award" means the granting of an option that
         meets the requirements of Code Section 421 to purchase shares of Stock,
         but is subject to the forfeiture and other conditions and restrictions
         set forth in this Plan or the Incentive Stock Option Award Agreement.

         (h) "Incentive Stock Option Award Agreement" means the written
         agreement in such form as is approved by the Committee, which shall be
         duly executed by the Bank and Subsidiaries and the Participant and
         which shall set forth the terms and conditions of the Incentive Stock
         Option Award as provided under the Plan.

                                       -2-


<PAGE>   3



                  (i) "Participant" means the following officers or directors of
         the Bank and Subsidiaries who receive an Incentive Stock Option Award
         and participate in this Plan:

                           (i)      J. Robert Grubbs;
                           (ii)     Davis Stroud;
                           (iii)    Alex Johnson;
                           (iv)     Hugh Wells;
                           (v)      James I. Stalsworth;
                           (vi)     Allen Jones;
                           (vii)    Bradford M. Sayles; and
                           (viii)   Steve Ottinger.

                  (j) "Stock means the Bank and Subsidiaries's common stock.

3. Stock Subject to the Plan. The maximum number of shares of Stock with respect
to which Incentive Stock Option Awards may be granted under this Plan shall not
exceed one thousand (1,000) shares, to be divided among the Participants by the
amount that each Participant's compensation bears to the total compensation of
all Participants, subject to adjustment in accordance with Paragraph 7. The
shares of Stock may be authorized but unissued Stock.

The value of the shares of Stock which may be exercised for the first time by a
Participant in any one year under this Plan may not exceed $100,000, based on
the fair market value of the Stock at the Date of Grant.

4. Administration of the Plan. The Board shall appoint the members of the
Committee. The Committee shall consist of no less than two (2) persons, neither
of whom shall be Participants in the Plan. With respect to the Plan and all
Incentive Stock Option Awards granted thereunder, the Committee shall have full
authority, subject to the provisions of the 



                                      -3-
<PAGE>   4
Plan and the Incentive Stock Option Award Agreement, to interpret the Plan and
the Incentive Stock Option Award Agreements and to prescribe, amend, and rescind
rules and regulations relating to the Plan and the Incentive Stock Option Award
Agreements. The Committee shall have full authority, subject to the provisions
of the Plan and the Incentive Stock Option Award Agreements, to determine the
terms (including restrictions and conditions) of any such Incentive Stock Option
Awards Agreement; to amend or cancel Incentive Stock Option Awards (subject to
the terms of this Plan and the Incentive Stock Option Award Agreements); to
accelerate the date of lapse of restrictions with respect to all or any part of
the shares of Stock subject to an Incentive Stock Option Award Agreement; and to
require the cancellation or surrender of any previously granted Incentive Stock
Option Awards on which the restrictions have not yet lapsed under this Plan,
such Incentive Stock Option Award Agreement, or any other plans of the Bank and
Subsidiaries as condition to the granting of an Incentive Stock Option Award.

The Board may, from time to time, appoint members of the Committee in
substitution for or in addition to members previously appointed and may fill
vacancies, however caused, in the Committee. The Board shall select one of the
members of the Committee to act as its Chairman. The Committee shall hold its
meetings at such times and places as it shall deem advisable. A majority of its
members shall constitute a quorum. Any action of the Committee may be taken
without the need for a meeting by a written instrument signed by all of the
members of the Committee, and any action so taken shall be fully effective as if
it had been taken by a vote of a majority of the members at a meeting duly
called and held. The Committee shall make such rules and regulations for the
conduct of its business as it shall deem advisable and shall appoint a secretary
who shall keep minutes of its meetings and records of all actions taken in
writing without a meeting. No member of the Committee shall be liable, in the
absence of good faith, for any act or omission with respect to his service on
the Committee.

5. Incentive Stock Option Awards. Incentive Stock Option Awards shall be granted
under the Plan by the Committee in accordance with the provisions of this Plan.
Incentive 



                                      -4-
<PAGE>   5
Stock Option Awards granted under this Plan shall be evidenced by an Incentive
Stock Option Award Agreement in such form as the Committee may, from time to
time, determine and shall be subject to the terms, conditions and restrictions
set forth in this Plan and the Incentive Stock Option Award Agreement. Incentive
Stock Option Awards shall be granted in accordance with the following terms and
conditions:

         (a) Participants to whom Incentive Stock Option Awards may be Granted.
         Incentive Stock Option Awards will be granted to such of the
         Participants listed in Section 2(h) of the Plan, provided that such
         Participants have an "employment relationship", within the meaning
         prescribed under Treasury Regulation Section 1.421-7(h), with the Bank
         or Subsidiaries at the time the Incentive Stock Option Award is
         granted.

         (b) Price. The purchase price per share of Stock deliverable upon the
         exercise of an Incentive Stock Option Award shall be one hundred
         percent (100%) of the "fair market value" of the Stock on the Date of
         Grant. Notwithstanding the above, if the Participant possesses stock of
         the Bank and Subsidiaries which represents more than ten percent (10%)
         of the combined voting power of all classes of stock of the Bank and
         Subsidiaries (hereinafter referred to as a "10% Shareholder"), the
         purchase price of the Stock for such Participant shall not be less than
         one hundred ten percent (110%) of the "fair market value" of the Stock
         on the Date of Grant.

         Shares of Stock may be purchased upon full payment of the purchase
         price provided for in the Incentive Stock Option Award Agreement
         relating to the Stock. With the consent of the Committee, payment of
         the purchase price may be made, in whole or in part, through the
         surrender of shares of Stock of the Bank and Subsidiaries at the "fair
         market value" of such shares determined in the manner described in
         Subparagraph (d), hereof; provided, however, that the shares have not
         been acquired through the prior grant of any Incentive Stock Option
         Awards.



                                      -5-
<PAGE>   6
         (c) Exercise of Options. The Participant may exercise any part of the
         Incentive Stock Option Award, as limited by Subparagraph (e) of this
         section, by giving the Bank or Subsidiary written notice of the intent
         to exercise and by delivering the full payment price of the Incentive
         Stock Option Award for the Stock purchased to the Bank or Subsidiary.
         The written notice of the intent to exercise shall specify the number
         of shares of Stock to which the option is to be exercised and the
         purchase price of the Stock. As soon as practicable after the Date of
         Exercise, the Bank or Subsidiaries shall deliver to the Participant a
         certificate, or certificates, for the Stock options being purchased.

         (d) Determining Fair Market Value of Stock. For purposes of this Plan,
         the term "fair market value" shall mean:

                  (i) if the Stock is listed or admitted to trade on a national
                  securities exchange, the closing price of the Stock on the
                  composite tape of the principal national securities exchange
                  on which the Stock is so listed or admitted to trade.

                  (ii) if the Stock is not listed or admitted to trade on a
                  national securities exchange, the mean between the last
                  reported bid and asked price for the Stock as furnished by the
                  National Association of Securities Dealers, Inc. through
                  NASDAQ or a similar organization if NASDAQ is not reporting
                  such information with respect to the Stock; or

                  (iii) if the Stock is not listed or admitted to trade on a
                  national securities exchange and if bid and asked prices for
                  the Stock are not so furnished through NASDAQ or a similar
                  organization, the fair market value of the Stock shall be
                  determined by the Committee, acting in good faith. The
                  Committee may rely on the advice of qualified appraisers or
                  investment advisers in helping to establish the fair market
                  value of the Stock.




                                      -6-
<PAGE>   7
         (e) Terms of Incentive Stock Option Awards. In no event shall the
         Incentive Stock Option Award be exercisable more than ten (10) years
         from the Date of Grant. Stock options shall become exercisable in five
         (5) installments. The Participant shall have the right to purchase from
         the Bank and Subsidiaries the following number of option shares upon
         exercise of the option, on and after the following dates, in cumulative
         fashion:

                  (i) on and after the first anniversary of the Date of Grant,
                  up to twenty percent (20%) (ignoring fractional shares) of the
                  total number of option shares;

                  (ii) on and after the second anniversary of the Date of Grant,
                  up to forty percent (40%) (ignoring fractional shares) of the
                  total number of option shares less the number of shares
                  previously purchased through options exercised under this
                  Plan;

                  (iii) on and after the third anniversary of the Date of Grant,
                  up to sixty percent (60%) (ignoring fractional shares) of the
                  total number of option shares less the number of shares
                  previously purchased through options exercised under this
                  Plan;

                  (iv) on and after the fourth anniversary of the Date of Grant,
                  up to eighty percent (80%) (ignoring fractional shares) of the
                  total number of option shares less the number of shares
                  previously purchased through options exercised under this
                  Plan.

                  (v) on and after the fifth anniversary of the Date of Grant,
                  up to one hundred percent (100%) (ignoring fractional shares)
                  of the total number of option shares less the number of shares
                  previously purchased through options exercised under this
                  Plan.



                                      -7-
<PAGE>   8
         (f) Termination of Employment. If the Committee determines that a
         Participant has been Discharged for Cause, all rights under the
         Participant's Incentive Stock Option Award Agreement shall expire
         immediately and the Participant's Incentive Stock Option Award shall
         become null and void and shall no longer be exercisable by the
         Participant.

         Unless otherwise provided in a Participant's Incentive Stock Option
         Award Agreement, upon a Participant's termination of employment with
         the Bank and Subsidiaries for any reason other than a Discharge for
         Cause, his Incentive Stock Option Awards shall be exercisable (to the
         extent that the Participant has become vested in his Incentive Stock
         Option Awards prior to the date of the Participant's termination) for a
         period of three (3) months following the Participant's termination of
         employment. If the Participant's termination of employment with the
         Bank and Subsidiaries results from the Participant's death or
         disability, the Participant's Incentive Stock Option Awards that have
         become exercisable as of the date of the Participant's death or
         disability shall remain exercisable for one (1) year following the date
         of the Participant's termination of employment with the Bank and
         Subsidiaries. For purposes of the above, a Participant shall be deemed
         to be disabled when the Committee determines, in its sole discretion,
         that the Participant is unable to engage in any substantial activity by
         reason of any medically determinable physical or mental impairment
         which can be expected to result in death or which has lasted or can be
         expected to last for a continuous period of not less than twelve (12)
         months.

         Under no circumstances may an Incentive Stock Option Award be exercised
         after the expiration of the Incentive Stock Option Award's term.

6. Rights of a Shareholder; Nontransferability. A Participant shall have no
rights as a shareholder of the Company with respect to any shares of Stock
granted as an Incentive Stock Option Award or covered under an Incentive Stock
Option Award Agreement until the date of issuance of a Stock certificate for
such shares. Nothing in this Plan, or in any 



                                      -8-
<PAGE>   9
Incentive Stock Option Award Agreement issued or granted, confers on any person
any right to continue in the employ of the Bank and Subsidiaries, or to continue
to perform services for the Bank and Subsidiaries, or interferes in any way with
the right of the Bank and Subsidiaries to terminate the services of a
Participant as an officer or employee at any time.

No grant under the Plan or an Incentive Stock Option Award Agreement shall be
transferable by a Participant other than by laws of descent and distribution and
may only be exercised during his lifetime by the Participant.

7. Dilution and Other Adjustments. In the event of any change in the outstanding
shares of Stock by reason of any stock dividend or split, recapitalization,
merger, consolidation, spinoff, reorganization, combination or exchange of
shares, or other similar corporate change, the Committee shall make such
adjustment to previously granted Incentive Stock Option Awards, if any, as it,
in its sole discretion, deems equitable in the:

         (a) aggregate number of kind of shares of stock that may be awarded
         under the Plan;

         (b) aggregate number of kind of shares of stock covered by grants
         already made under the Plan as of such date; and

         (c) purchase price of outstanding Incentive Stock Option Awards.

Any such adjustment may provide for the elimination of any fractional shares of
Stock which might otherwise become subject to an Incentive Stock Option Award.

8. Change in Control. If the Bank and Subsidiaries shall be party to any
reorganization in which it does not survive, involving merger, consolidation, or
acquisition of the stock or substantially all the assets of the Bank and
Subsidiaries including a "change in control" of the 



                                      -9-
<PAGE>   10
Bank and Subsidiaries within the meaning of Section 280G of the Code, the Board,
in its discretion, may:

         (a) declare that all Options granted under the Plan shall become
         exercisable immediately notwithstanding the provisions of the
         respective Stock Option Award Agreements regarding exercisability, and
         that all such Options shall terminate thirty (30) days after the Board
         gives written notice of the immediate right to exercise all such
         Options and of the decision to terminate all Options not exercised
         within such thirty (30) day period;

         (b) declare that all options granted under the Plan shall become 100%
         vested immediately before the date of the change in control;

         (c) declare that all options are canceled and provide a cash out equal
         to the value (fair market value less exercise price times number of
         shares not previously exercised under the option) of all (or only all
         vested) Incentive Stock Option Awards granted to each Participant; or

         (d) notify all Participants that all Options granted under the Plan
         shall be assumed by the successor corporation or substituted with
         options issued by such successor corporation.

9. Withholding. The Bank and Subsidiaries shall have the right to deduct from
any amount otherwise payable to a Participant the amount of any taxes which the
Bank and Subsidiaries is or will be required to withhold, as and when required
by law, with respect to any Incentive Stock Option Award granted hereto. In the
event the total amount otherwise payable by the Bank and Subsidiaries to such
Participant is insufficient to provide the Bank and Subsidiaries with the taxes
which it is required to withhold, then Bank and Subsidiaries shall have the
right to require the Participant to pay the Bank and Subsidiaries the amount of
such excess amounts before any certificates of Stock will be delivered to the
Participant.




                                      -10-
<PAGE>   11
In the alternative, the Bank and Subsidiaries shall have the right to require
the Participant to remit to the Bank and Subsidiaries an amount sufficient to
satisfy any federal, state and/or local withholding tax requirements prior to
the delivery of any certificate or certificates for such stock.

10. Amendment of the Plan. The Plan may be amended by the Board at any time and
from time to time. Notwithstanding the above, no such amendment or cancellation
of the Plan or any Incentive Stock Option Award Agreement granted under the Plan
shall impair any of the rights or economic benefits previously accrued by any
Participant, without his consent, under any Incentive Stock Option Award
Agreement theretofore granted under the Plan.

11. Termination of the Plan. The right to grant Incentive Stock Option Awards
under the Plan will terminate on the date that is the later of ten (10) years
from the date this Plan is executed or the date that all Stock Option Awards
have been exercised. Notwithstanding the above, the Bank and Subsidiaries have
the right to suspend or terminate the Plan at any time prior to the above date,
provided that no such action will, without the consent of a Participant,
adversely affect such Participant's rights under a previously granted Incentive
Stock Option Award Agreement.

12. Securities Laws Compliance. The Bank's and Subsidiaries's and/or Committee's
obligation to sell and/or deliver Stock under any Incentive Stock Option Award
Agreement granted under the Plan is subject to such compliance with federal,
state, administrative or quasi-administrative requirements, laws, rules and
regulations applying to the authorization, issuance or sale of securities as the
Bank and Subsidiaries or Committee deem necessary or advisable. The Committee
may, if it shall deem it necessary or desirable, require a Participant to submit
appropriate representations in writing to the Bank and Subsidiaries, or a
written investment letter prior to the delivery of any shares of Stock pursuant
to the exercise of an Incentive Stock Option Award.




                                      -11-
<PAGE>   12
13. Loans or Bonuses to Participants. If approved by the Committee, the Bank and
Subsidiaries may lend money, guarantee a loan by a third party, or grant a bonus
to a Participant to either assist the Participant in financing the exercise or
making the required tax deposits related to an Incentive Stock Option Award
granted under the Plan.

14. Applicable Law. Except as otherwise preempted by federal law in accordance
with the Employee Retirement Income Security Act of 1974, as amended, the Plan
will be administered in accordance with the laws in the State of Tennessee.

15. Reporting Obligations. On or before January 31 of the year following the
exercise of the Incentive Stock Option Award, the Bank or Subsidiary must
provide the Participant with a statement regarding the value of the Stock at the
Date of Exercise, the Date of Grant and other pertinent information.

16. Other Provisions. As used in this Plan, the Incentive Stock Option Award
Agreements and any other documents prepared in implementation of the Plan,
references in the singular or plural shall refer to the plural or singular as
the identity of the person or persons or entity or entities being referred to
may require. The captions used in the Plan, the Incentive Stock Option Award
Agreements, and such other documents are for convenience only and shall not
affect the meaning of any provisions hereof or thereof.

(CORPORATE SEAL)                            GREENE COUNTY BANCSHARES, INC.

Attest:                                     By:  /s/ Stan Puckett
                                                 -----------------------------
  /s/                                       Title:     President
- --------------------------------                       -----------------------
         (Secretary)


                                      -12-
<PAGE>   13
                                                                     EXHIBIT 4.3
                                                                       Continued

                               FIRST AMENDMENT TO
                         INCENTIVE STOCK OPTION PLAN OF
                       GREENE COUNTY BANCSHARES, INC. AND
                              SUBSIDIARIES OF 1993

         This First Amendment to First Amendment to Incentive Stock Option Plan
of Greene County Bancshares, Inc. and Subsidiaries of 1993 (the "Option Plan")
adopted for the benefit of certain employees of Greene County Bank and American
Fidelity Bank (the "Bank") is executed on the 23rd day of April, 1996.

         WHEREAS, the Option Plan was adopted in 1993 and options were granted
under such Option Plans to certain employees; and

         WHEREAS, the Boards of Greene County Bancshares, Inc. and the Banks
wish to amend such Option Plan as follows:

         1. The definition of "Incentive Stock Option Award" in Section 2(g) is
amended to provide as follows:

                  "Incentive Stock Option Award" means the granting of an option
                  that is subject to the forfeiture and other conditions and
                  restrictions set forth in this Plan on the Incentive Stock
                  Option Award Agreement."

         2. Section 5(e) of the Plan is amended to provide as follows:

                  "(e)     Terms of Incentive Stock Option Awards.  In no event
                  shall the Incentive Stock Option Award be exercisable more
                  than ten (10) years from the Date of Grant.  Stock options
                  shall be exercisable immediately from their Date of Grant."

         3. The following Section 17 is added to the Option Plan:

                  "17(a) Notwithstanding any provision to the contrary herein,
                  in the event this Plan is not submitted to the shareholders of
                  Greene County Bancshares, Inc. for approval as required in
                  Section 1 of this Option Plan and Section 422 of the Internal
                  Revenue Code, this Plan shall be a nonqualified stock option
                  plan and shall be effective as if its date of adoption.

                  "(b)     In such event this Plan shall be known as the
                  Nonqualified Stock Option Plan Greene County Bancshares,
                  Inc. 


<PAGE>   14
                  and Subsidiaries for 1993 and the Agreements with the
                  participants for option issued under the Plan shall be
                  referred to as the "Nonqualified Stock Option Award Agreement
                  of 1993." The effective date of the Agreement shall be
                  December 31, 1993, the date such options were granted to the
                  employees (the "Date of Grant"). Wherever in the Plan the term
                  'Incentive Option' appears, it shall be replaced by the term
                  'Nonqualified Option.'"

         4. The remaining provisions of the Option Plan shall continue in full
force and effect.

                                        GREENE COUNTY BANCSHARES, INC.

                                        By: /s/
                                            -----------------------------
                                        Printed Name: Stan Puckett
                                                      -------------------
                                        Title:    President & CEO
                                                  -----------------------
                                        GREENE COUNTY BANK

                                        By: /s/
                                            -----------------------------
                                        Printed Name: Stan Puckett
                                                      -------------------
                                        Title:    President & CEO
                                                  -----------------------

                                        AMERICAN FIDELITY BANK

                                        By: /s/
                                            -----------------------------
                                        Printed Name: Bradford M. Sayles
                                                      -------------------
                                        Title:    President & CEO
                                                  -----------------------


                                       -2-



<PAGE>   1
                                                                      EXHIBITS 5
                                                                        and 23.1





July 3, 1996


Greene County Bancshares, Inc.
Main and Depot Streets
Greeneville, TN  37743

Gentlemen:

You have requested our opinion as to the legality of the shares of Common Stock
to be issued by Greene County Bancshares, Inc. (the "Company") in connection
with its offering of 32,000 shares of its Common Stock pursuant to a
Registration Statement on Form S-8, as filed with the Securities and Exchange
Commission (the "Offering").

Except as indicated below, we have examined such corporate records and other
documents and have made such examinations of law as we have deemed relevant.
Based on and subject to the above, and subject to the qualifications below, it
is our opinion that the authorized and outstanding shares of Common Stock of the
Company will be validly authorized and issued, fully paid and nonassessable when
issued to purchasers of the Offering.

In arriving at this opinion, we have relied upon the corporate documentation of
the Company, and our opinion is based upon the foregoing and upon such
examination of federal and Tennessee laws (to which our opinion is limited) as
we have deemed appropriate, and subject to the discussions and qualifications
stated herein.

We hereby consent to the inclusion in whole or in part of, or reference to, this
opinion in connection with the Registration Statement on Form S-8 regarding the
shares of Common Stock of the Company, which has been filed with the Securities
and Exchange Commission.

Very truly yours,

GERRISH & McCREARY, P.C.


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

mg

<PAGE>   1
                                                                Exhibit 23.2
[Coopers & Lybrand Logo]

                           Coopers & Lybrand L.L.P.
                         a professional services firm



                      CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the incorporation by reference in the registration statement of
Greene County Bancshares, Inc. on Form S-8 of our report dated February 2,
1996, on our audits of the consolidated financial statements and financial
statement schedules of Greene County Bancshares, Inc. as of December 31, 1995
and 1994, and for the years ended December 31, 1995 and 1994, which report is
incorporated by reference in this Annual Report on Form 10-K.


                                     COOPERS & LYBRAND L.L.P.


Knoxville, Tennessee
July 3, 1996















   Coopers & Lybrand L.L.P. is a member of Coopers & Lybrand international,
         a limited liability association incorporated in Switzerland.




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