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                                                                EXHIBIT 10.8

                           ALLEGIANT BANCORP, INC.
                               SHAUN R. HAYES
                        EXECUTIVE RETENTION AGREEMENT

         This Executive Retention Agreement (this "Agreement") has been
entered into as of the 1st day of January, 2002, by and between Allegiant
Bancorp, Inc., a Missouri corporation (the "Company"), and SHAUN R. HAYES,
an individual ("Executive").

                                  RECITALS

         The Board of Directors of the Company (the "Board"), has determined
that it is in the best interests of the Company and its shareholders to
reinforce and encourage the continued attention and dedication of the
Executive to the Company as a member of the Company's management and to
assure that the Company will have the continued dedication of the Executive,
notwithstanding the possibility, threat or occurrence of a Change in Control
(as defined below) with respect to the Company. The Board desires to provide
for the continued employment of the Executive, and the Executive is willing
to commit to continue to serve the Company. Additionally, the Board believes
it is imperative to diminish the inevitable distraction of the Executive by
virtue of the personal uncertainties and risks created by a pending or
threatened Change in Control, to encourage the Executive's full attention
and dedication to the Company currently and in the event of any threatened
or pending Change in Control, and to provide the Executive with compensation
and benefits arrangements upon a termination of employment after a Change in
Control which ensure that the compensation and benefits expectations of the
Executive will be satisfied and which are competitive with those of other
corporations. Therefore, in order to accomplish these objectives, the Board
has caused the Company to enter into this Agreement.

                          IT IS AGREED AS FOLLOWS:

SECTION 1:        DEFINITIONS AND CONSTRUCTION.

                  1.1 DEFINITIONS. For purposes of this Agreement, the
following words and phrases, whether or not capitalized, shall have the
meanings specified below, unless the context plainly requires a different
meaning.

                           1.1(a) "ANNUAL BASE SALARY" shall mean the rate
                  of base salary (excluding benefits, bonuses, incentive
                  compensation or other forms of compensation or benefits)
                  at which Executive is being paid as of a particular date.

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

                           1.1(c) "CHANGE IN CONTROL" means:

                                  (i) The acquisition by any individual,
                  entity or group, or a Person of ownership of 30% or more
                  of either (a) the then outstanding shares of common stock
                  of the Company (the "Outstanding Company Common Stock") or
                  (b) the combined voting power of the then outstanding
                  voting securities of the Company entitled to vote
                  generally in the election of directors (the "Outstanding
                  Company Voting Securities"); or

                                  (ii) Individuals who, as of the date
                  hereof, constitute the Board (the "Incumbent Board") cease
                  for any reason to constitute at least a majority of the
                  Board; provided, however, that for purposes of the
                  definition of "Incumbent

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                  Board," any individual becoming a director subsequent to
                  the date hereof whose election, or nomination for election
                  by the Company's shareholders, was approved by a vote of
                  at least a majority of the directors then comprising the
                  Incumbent Board shall be considered as though such
                  individual were a member of the Incumbent Board, but
                  excluding, as a member of the Incumbent Board, any such
                  individual whose initial assumption of office occurs as a
                  result of either an actual or threatened election contest
                  (as such terms are used in Rule l4a-11 of Regulation l4A
                  promulgated under the Exchange Act) or other actual or
                  threatened solicitation of proxies or consents by or on
                  behalf of a Person other than the Board; or

                                  (iii) Approval by the shareholders of the
                  Company (and subsequent consummation) of a reorganization,
                  merger or consolidation, in each case, unless, following
                  such reorganization, merger or consolidation, (a) more
                  than fifty percent (50%) of, respectively, the then
                  outstanding shares of common stock of the corporation
                  resulting from such reorganization, merger or
                  consolidation and the combined voting power of the then
                  outstanding voting securities of such corporation entitled
                  to vote generally in the election of directors is then
                  beneficially owned, directly or indirectly, by all or
                  substantially all of the individuals and entities who were
                  the beneficial owners, respectively, of the Outstanding
                  Company Common Stock and Outstanding Company Voting
                  Securities immediately prior to such reorganization,
                  merger or consolidation in substantially the same
                  proportions as their ownership, immediately prior to such
                  reorganization, merger or consolidation, of the
                  Outstanding Company Common Stock and Outstanding Company
                  Voting Securities, as the case may be, (b) no Person
                  (excluding the Company, any employee benefit plan (or
                  related trust) of the Company or such corporation
                  resulting from such reorganization, merger or
                  consolidation and any Person beneficially owning,
                  immediately prior to such reorganization, merger or
                  consolidation, directly or indirectly, twenty percent
                  (20%) or more of the Outstanding Company Common Stock or
                  Outstanding Voting Securities, as the case may be)
                  beneficially owns, directly or indirectly, twenty percent
                  (20%) or more of, respectively, the then outstanding
                  shares of common stock of the corporation resulting from
                  such reorganization, merger or consolidation or the
                  combined voting power of the then outstanding voting
                  securities of such corporation, entitled to vote generally
                  in the election of directors and (c) at least a majority
                  of the members of the board of directors of the
                  corporation resulting from such reorganization, merger or
                  consolidation were members of the Incumbent Board at the
                  time of the execution of the initial agreement providing
                  for such reorganization, merger or consolidation; or

                                  (iv) Approval by the shareholders of the
                  Company (and consummation) of (a) a complete liquidation
                  or dissolution of the Company or (b) the sale or other
                  disposition of all or substantially all of the assets of
                  the Company, other than to a corporation, with respect to
                  which following such sale or other disposition, (1) more
                  than fifty percent (50%) of, respectively, the then
                  outstanding shares of common stock of such corporation and
                  the combined voting power of the then outstanding voting
                  securities of such corporation entitled to vote generally
                  in the election of directors is then beneficially owned,
                  directly or indirectly, by all or substantially all of the
                  individuals and entities who were the beneficial owners,
                  respectively, of the Outstanding Company Common Stock and
                  Outstanding Company Voting Securities immediately prior to
                  such sale or other disposition in substantially the same
                  proportion as their

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                  ownership, immediately prior to such sale or other
                  disposition, of the Outstanding Company Common Stock and
                  Outstanding Company Voting Securities, as the case may be,
                  (2) no Person (excluding the Company and any employee
                  benefit plan (or related trust) of the Company or such
                  corporation and any Person beneficially owning,
                  immediately prior to such sale or other disposition,
                  directly or indirectly, twenty percent (20%) or more of
                  the Outstanding Company Common Stock or Outstanding
                  Company Voting Securities, as the case may be)
                  beneficially owns, directly or indirectly, twenty percent
                  (20%) or more of, respectively, the then outstanding
                  shares of common stock of such corporation and the
                  combined voting power of the then outstanding voting
                  securities of such corporation entitled to vote generally
                  in the election of directors and (3) at least a majority
                  of the members of the board of directors of such
                  corporation were members of the Incumbent Board at the
                  time of the execution of the initial agreement or action
                  of the Board providing for such sale or other disposition
                  of assets of the Company.

                           1.1(d) "CHANGE IN CONTROL DATE" shall mean the
                  date of the Change in Control; provided, however, that the
                  Change in Control Date shall mean the date immediately
                  prior to the date the Executive's employment with the
                  Company was terminated by the Company if (i) Executive's
                  employment with the Company was terminated by the Company
                  prior to the occurrence of a Change in Control, and (ii)
                  Executive's employment (either in fact or as reasonably
                  demonstrated by Executive) was terminated either at the
                  request of a third party who has taken steps reasonably
                  calculated to effect a Change in Control, or otherwise
                  occurred in connection with or anticipation of a Change in
                  Control.

                           1.1(e) "CODE" shall mean the Internal Revenue
                  Code of 1986, as amended.

                           1.1(f) "COMPANY" means Allegiant Bancorp, Inc., a
                  Missouri corporation.

                           1.1(g) "EFFECTIVE DATE" shall mean January 1,
                  2002.

                           1.1(h) "EXCHANGE ACT" means the Securities
                  Exchange Act of 1934, as amended.

                           1.1(i) "PERSON" means any "person" within the
                  meaning of Sections 13(d) and 14(d) of the Exchange Act.

                           1.1(j) "TERM" means the period that begins on the
                  Effective Date and ends on the earlier of: (i) January 1,
                  2005, or (ii) the date Executive's employment terminates.

                  1.2 GENDER AND NUMBER. When appropriate, pronouns in this
Agreement used in the masculine gender include the feminine gender, words in
the singular include the plural, and words in the plural include the
singular.

                  1.3 HEADINGS. All headings in this Agreement are included
solely for ease of reference and do not bear on the interpretation of the
text. Accordingly, as used in this Agreement, the terms "Article" and
"Section" mean the text that accompanies the specified Article or Section of
the Agreement.

                  1.4 APPLICABLE LAW. This Agreement shall be governed by
and construed in accordance with the laws of the State of Missouri, without
reference to its conflict of law principles.

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SECTION 2:        EMPLOYMENT; EMPLOYMENT TERMINATION.

                  2.1 EMPLOYMENT. Executive is employed by the Company on an
at will basis for no definite term. Either the Company or Executive may
terminate Executive's employment at any time with or without Cause or reason
by giving notice to the other party. The Executive's employment shall
terminate automatically upon the Executive's death.

                  2.2 TERMINATION OF EMPLOYMENT PRIOR TO A CHANGE OF
CONTROL. Upon termination of Executive's employment with the Company prior
to a Change in Control, whether employment is terminated by the Company, by
Executive, or otherwise, this Agreement shall terminate and neither party
shall have any rights or obligations hereunder except to the extent provided
for under Section 3 or otherwise under this Agreement; provided, however,
that Executive shall have all rights under this Agreement as if a Change in
Control occurred on the date immediately before the date Executive's
employment with the Company was terminated by the Company if (i) Executive's
employment with the Company was terminated by the Company prior to the
occurrence of a Change in Control, and (ii) Executive's employment (either
in fact or as reasonably demonstrated by Executive) was terminated either at
the request of a third party who has taken steps reasonably calculated to
effect a Change in Control, or otherwise occurred in connection with or
anticipation of a Change in Control.

                  2.3 TERMINATION OF EMPLOYMENT AFTER A CHANGE IN CONTROL.
After a Change in Control, the following provisions shall apply.

                           2.3(a) DEATH. The Executive's employment shall
                  terminate automatically upon the Executive's death.

                           2.3(b) DISABILITY. If the Company determines in
                  good faith that the Disability of the Executive has
                  occurred (pursuant to the definition of Disability set
                  forth below), it may give to the Executive written notice
                  in accordance with Section 6.1 of its intention to
                  terminate the Executive's employment. In such event, the
                  Executive's employment with the Company shall terminate
                  effective on the thirtieth (30th) day after receipt of
                  such notice by the Executive (the "Disability Effective
                  Date"), provided that, within the thirty (30) days after
                  such receipt, the Executive shall not have returned to
                  full-time performance of the Executive's duties. For
                  purposes of this Agreement, "Disability" shall mean that
                  the Executive has been unable to perform the services
                  required of the Executive hereunder on a full-time basis
                  (with reasonable accommodation) for a period of one
                  hundred eighty (180) consecutive business days by reason
                  of a physical and/or mental condition. "Disability" shall
                  be deemed to exist when certified by a physician selected
                  by the Company or its insurers and acceptable to the
                  Executive or the Executive's legal representative (such
                  agreement as to acceptability not to be withheld
                  unreasonably). The Executive will submit to such medical
                  or psychiatric examinations and tests as such physician
                  deems necessary to make any such Disability determination.

                           2.3(c) TERMINATION FOR CAUSE. The Company may
                  terminate the Executive's employment after a Change in
                  Control for "Cause," which shall mean termination based
                  upon: (i) the Executive's willful and continued failure to
                  substantially perform Executive's duties with the Company
                  (other than as a result of Disability), after a demand for
                  substantial performance is delivered to Executive by the
                  Company, which specifically identifies the manner in which
                  the Executive has not substantially performed Executive's
                  duties, (ii) the Executive's commission of an act in
                  connection with Executive's employment constituting a
                  criminal offense involving moral turpitude, dishonesty, or
                  breach of trust, (iii) Executive has engaged in any
                  conduct which would preclude Executive from employment
                  with the Company or any of its subsidiary banks or

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                  corporations, or the Executive is disqualified or
                  precluded from being employed by or providing any services
                  to the Company or any of its subsidiary banks or
                  corporations by reason of any federal or state banking law
                  or regulation or any order or written request of any
                  regulatory agency which has jurisdiction over Company or
                  any of its subsidiaries, or (iv) the Executive's material
                  breach of any provision of this Agreement. For purposes of
                  this Section, no act, or failure to act on the Executive's
                  part shall be considered "willful" unless done, or omitted
                  to be done, without good faith and without reasonable
                  belief that the act or omission was in the best interest
                  of the Company. Notwithstanding the foregoing, the
                  Executive shall not be deemed to have been terminated for
                  Cause unless and until (i) Executive receives a Notice of
                  Termination (as defined in Section 2.4) from the Company,
                  (ii) Executive is given the opportunity, with counsel, to
                  be heard before the Board, and (iii) the Board finds, in
                  its good faith opinion, the Executive was guilty of the
                  conduct set forth in the Notice of Termination.

                           2.3(d) GOOD REASON. After a Change In Control,
                  the Executive may voluntarily terminate Executive's
                  employment with the Company for "Good Reason," which shall
                  mean termination based upon:

                                  (i) Any action by the Company which
                           results in a material diminution in the duties or
                           responsibilities held by Executive as of the
                           Change in Control Date, excluding for this
                           purpose any action not taken in bad faith and
                           which is remedied by the Company promptly after
                           receipt of notice thereof given by the Executive
                           and any actions which are a necessary incident of
                           a merger or consolidation (e.g., the elimination
                           or consolidation of a position) provided the
                           Executive is assigned duties and responsibilities
                           of an executive nature in lieu thereof;

                                  (ii) The Company's reduction in the Annual
                           Base Salary at which the Executive was paid as of
                           the Change in Control Date;

                                  (iii) (a) the failure by the Company to
                           continue in effect any benefit or compensation
                           plan, stock ownership plan, life insurance plan,
                           health and accident plan or disability plan to
                           which the Executive was entitled as of the Change
                           in Control Date, (b) the taking of any action by
                           the Company which would adversely affect the
                           Executive's participation in, or materially
                           reduce the Executive's benefits under, any such
                           plan or benefit, or deprive the Executive of any
                           material fringe benefit enjoyed by the Executive
                           as of the Change in Control Date, or (c) the
                           failure by the Company to provide the Executive
                           with the number of paid vacation days which the
                           Executive was entitled to receive on an annual
                           basis as of the Change in Control Date;

                                  (iv) The Company's requiring the Executive
                           to be regularly based at any office or location
                           outside the greater metropolitan St. Louis area;
                           or

                                  (v) A material breach by the Company of
                           any provision of this Agreement.

                  For purposes of this Section any good faith determination
                  of "Good Reason" made by the Executive shall be
                  conclusive.

                           2.3(e) TERMINATION WITHOUT CAUSE AFTER A CHANGE
                  IN CONTROL. After a Change in Control, the Company and
                  Executive shall continue to have the right to terminate

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                  Executive's employment without Cause and for any or no
                  reason, and nothing in this Agreement shall be construed
                  as limiting the Company's or Executive's right to
                  terminate Executive's employment at any time without Cause
                  and for any or no reason.

                  2.4 NOTICE OF TERMINATION. Any termination of the
Executive's employment with the Company (other than for death) by the
Company or by the Executive, shall be communicated by Notice of Termination
to the other party, given in accordance with Section 6.1. For purposes of
this Agreement, a "Notice of Termination" means a written notice which (i)
indicates the specific termination provision in this Agreement relied upon,
(ii) to the extent applicable, sets forth in reasonable detail the facts and
circumstances claimed to provide a basis for termination of the Executive's
employment under the provision so indicated, and (iii) if the Date of
Termination (as defined below) is other than the date of receipt of such
notice, specifies the termination date (which date shall be not more than
fifteen (15) days after the giving of such notice, except as otherwise
provided for in Section 2.3(b)). The failure by the Executive or the Company
to set forth in the Notice of Termination any fact or circumstance which
contributes to a showing of Good Reason or Cause shall not waive any right
of the Executive or the Company hereunder or preclude the Executive or the
Company from asserting such fact or circumstance in enforcing the
Executive's or the Company's rights hereunder.

                  2.5 DATE OF TERMINATION. "Date of Termination" means the
effective date of termination of Executive's employment with the Company,
determined as follows: (i) if after a Change of Control the Executive's
employment is terminated after a Change of Control by the Company for Cause,
or by the Executive for Good Reason, the Date of Termination shall be the
date of receipt of the Notice of Termination or any later date specified
therein, as the case may be, (ii) if after a Change of Control the
Executive's employment is terminated by reason of death or Disability, the
Date of Termination shall be the date of death of the Executive or the
Disability Effective Date, as the case may be, (iii) if after a Change of
Control the Executive's employment is terminated by the Company other than
for Cause, death, or Disability, or by the Executive without Good Reason,
the Date of Termination shall be the date of receipt of the Notice of
Termination, or (iv) if the Executive's employment is terminated by the
Company or Executive prior to a Change in Control other than for Executive's
death or disability, the Date of Termination shall be the date of receipt of
the Notice of Termination; provided that if within thirty (30) days after
any Notice of Termination is given, the party receiving such Notice of
Termination notifies the other party that a dispute exists concerning the
reason for the termination, solely for the purpose of determining the timing
of any payment calculated from the Date of Termination the Date of
Termination shall be the date on which the dispute is finally determined,
either by mutual written agreement of the parties, or by a final judgment,
order or decree of a court of competent jurisdiction (the time for appeal
therefrom having expired and no appeal having been perfected).

SECTION 3:        CERTAIN BENEFITS UPON TERMINATION.

                  3.1 TERMINATION OF EMPLOYMENT PRIOR TO A CHANGE IN
CONTROL. If, prior to a Change in Control: (i) the Company shall terminate
the Executive's employment, or (ii) the Executive shall terminate employment
with the Company, and such termination is not due to Executive's death or
Disability, then:

                           3.1(a) "Accrued Obligations": Within 30 days
                  after the Date of Termination, the Company shall pay to
                  the Executive the sum of (1) the Executive's Annual Base
                                                               -----------
                  Salary through the Date of Termination to the extent not
                  ------
                  previously paid, (2) any compensation previously deferred
                  by the Executive (together with any accrued interest or
                  earnings thereon) and (3) any accrued vacation pay; in
                  each case to the extent not previously paid.

                           3.1(b) "Other Benefits": To the extent not
                  previously paid or provided, the Company shall timely pay
                  or provide to the Executive and/or the Executive's family
                  any

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                  other amounts or benefits required to be paid or provided
                  for which the Executive and/or the Executive's family is
                  eligible to receive pursuant to this Agreement and under
                  any plan, program, policy or practice or contract or
                  agreement of the Company as those provided generally to
                  other peer executives and their families during the ninety
                  (90) day period immediately preceding the Effective Date
                  or, if more favorable to the Executive, as those provided
                  generally after the Effective Date to other peer
                  executives of the Company and their families; to the
                  extent permissible under the terms of the applicable plan
                  and applicable law.

                           3.1(c) "Severance Amount": Company may, at its
                  option, waive the provisions of Section 4.1 hereof, in
                  which event, Executive shall not be entitled to any amount
                  in addition to that described in 3.1(a) and 3.1 (b). If
                  Employer elects not to waive the provisions of Section
                  4.1, within thirty (30) days after the Date of Termination
                  and subject to satisfaction of the provisions of Section
                  3.9, Company shall begin paying to Executive twelve (12)
                  monthly installments which together equal the Employee's
                  Annual Base Salary. Payments shall be made in accordance
                  ------------------
                  with the payroll practice of Company but no less
                  frequently than once a month. Executive's right to receive
                  the Severance Amount under this Section 3.1(c) is
                  conditioned on Executive's compliance with Section 4.1

                  3.2 BENEFITS UPON TERMINATION OF EMPLOYMENT AFTER A CHANGE
IN CONTROL WITHOUT CAUSE OR FOR GOOD REASON. If a Change in Control occurs
while Executive is employed by the Company, and within three (3) years after
a Change in Control: (i) the Company shall terminate the Executive's
employment without Cause, or (ii) the Executive shall terminate employment
with the Company for Good Reason, then upon satisfaction of the conditions
set forth in Section 3.9 below (with respect to the payments specified in
Section 3.2 (b)) the Executive shall be entitled to the benefits provided
below:

                           3.2(a) "Accrued Obligations": Within thirty (30)
                  days after the Date of Termination, the Company shall pay
                  to the Executive the sum of (1) the Executive's Annual
                  Base Salary through the Date of Termination to the extent
                  not previously paid, (2) any compensation previously
                  deferred by the Executive (together with any accrued
                  interest or earnings thereon) and (3) any accrued vacation
                  pay; in each case to the extent not previously paid.

                           3.2(b) "Severance Amount": Within thirty (30)
                  days after the Date of Termination and satisfaction of the
                  provisions of Section 3.9, Company shall pay to Employee a
                  lump sum cash amount or monthly installments, as Employee
                  chooses, equal to the product of 2.99 times the Employee's
                  Highest Annual Compensation. For purposes of this
                  subparagraph, "Highest Annual Compensation" shall mean the
                  highest total annual compensation (salary and incentive)
                  paid by the Company to the Employee in any one of the
                  three most recent completed calendar years preceding the
                  Date of Termination. If Employee chooses to receive this
                  payment in a lump sum, this amount shall be paid within 30
                  days after the effective date of involuntary termination
                  or Diminution of Status. If Employee chooses to receive
                  this payment in a series of equal monthly installments
                  over a one and one-half year period, payments shall be
                  made in accordance with the payroll practice of Company
                  but no less frequently than once a month.

                           3.2(c) "Stock Options": To the extent not
                  otherwise provided for under the terms of the Company's
                  stock option plan or the Executive's stock option
                  agreements (if any), all such stock options shall become
                  fully exercisable as of the Date of Termination and,
                  except for "incentive stock options" within the meaning of
                  Code Section 422 granted

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                  prior to the date hereof, shall remain fully exercisable
                  for six months following the Date of Termination.

                           3.2(d) "Health Insurance": For the period of
                  three (3) years commencing on the Date of Termination, the
                  Company shall provide, at its expense, to the Executive
                  and Executive's eligible family members full coverage
                  under the Company's Health Insurance Plan (or its full
                  equivalent) and the Company's Dental Insurance Plan (or
                  its full equivalent).

                           3.2(e) "Other Benefits": To the extent not
                  previously paid or provided, the Company shall timely pay
                  or provide to the Executive and/or the Executive's family
                  any other amounts or benefits required to be paid or
                  provided for which the Executive and/or the Executive's
                  family is eligible to receive pursuant to this Agreement
                  and under any plan, program, policy or practice or
                  contract or agreement of the Company as those provided
                  generally to other peer executives and their families
                  during the ninety (90) day period immediately preceding
                  the Effective Date or, if more favorable to the Executive,
                  as those provided generally after the Effective Date to
                  other peer executives of the Company and their families;
                  to the extent permissible under the terms of the
                  applicable plan and applicable law.

                  3.3 DEATH; DISABILITY. If the Executive's employment is
terminated by reason of the Executive's death (either prior or subsequent to
a Change in Control), this Agreement shall terminate without further
obligations to the Executive's legal representatives under this Agreement,
other than for (i) payment of Accrued Obligations (as defined in Section
3.1(a)) (which shall be paid to the Executive's estate or beneficiary, as
applicable, in a lump sum in cash within thirty (30) days of the Date of
Termination); (ii) and the timely payment or provision of Other Benefits (as
defined in Section 3.1(b)), including death benefits pursuant to the terms
of any plan, policy, or arrangement of the Company.

                           If the Executive's employment is terminated by
reason of the Executive's Disability (either prior or subsequent
to a Change in Control), this Agreement shall terminate without further
obligations to the Executive, other than for (i) payment of Accrued
Obligations (as defined in Section 3.1(a)) (which shall be paid to the
Executive in a lump sum in cash within thirty (30) days of the Date of
Termination) and (ii) the timely payment or provision of Other Benefits (as
defined in Section 3.1(b)) including disability benefits pursuant to the
terms of any plan, policy or arrangement of the Company.

                  3.4 TERMINATION AFTER A CHANGE OF CONTROL FOR CAUSE; OTHER
THAN GOOD REASON. If the Executive's employment shall be terminated for
Cause subsequent to a Change in Control, this Agreement shall terminate
without further obligations to the Executive other than the obligation to
pay to the Executive the Executive's Accrued Obligations (as defined in
Section 3.1(a)). If the Executive terminates employment with the Company
other than for Good Reason and subsequent to a Change of Control, if the
Executive terminates employment with the Company for Good Reason more than
three (3) years after a Change of Control, or if the Company terminates the
Executive without Cause more than three (3) years after a Change of Control,
this Agreement shall terminate without further obligations to the Executive,
other than for the payment of Accrued Obligations (as defined in Section
3.1(a)) and the timely payment or provision of Other Benefits (as defined in
Section 3.1(b)). In such case, all Accrued Obligations shall be paid to the
Executive in a lump sum in cash within thirty (30) days of the Date of
Termination.

                  3.5 CERTAIN ADDITIONAL PAYMENTS BY COMPANY.

                           3.5(a) Anything in this Agreement to the contrary
                  notwithstanding, in the event it shall be determined that
                  any payment or distribution by the Company or any

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                  successor or affiliate to or for the benefit of Executive
                  (whether paid or payable or distributed or distributable
                  pursuant to the terms of this Agreement or otherwise,
                  determined with regard to accelerated vesting of stock
                  options and other forms of compensation on account of a
                  change of control as defined in the Code or as the result
                  of any provision in this Agreement, but determined without
                  regard to any additional payments required under this
                  section) (a "Payment") would be subject to the excise tax
                  imposed by Section 4999 of the Internal Revenue Code of
                  1986, as amended (the "Code") or any interest or penalties
                  are incurred by Executive with respect to such excise tax
                  (such excise tax, together with any interest and
                  penalties, are hereinafter collectively referred to as the
                  "Excise Tax"), then Executive shall be entitled to receive
                  an additional payment (a "Gross-Up Payment") in an amount
                  such that after payment by Executive of all taxes
                  (including any interest or penalties imposed with respect
                  to such taxes), including, without limitation, any income
                  taxes (and any interest and penalties imposed with respect
                  thereto) and Excise Tax imposed upon the Gross-Up Payment,
                  Executive retains an amount of the Gross-Up Payment equal
                  to the Excise Tax imposed upon the Payments. For purposes
                  of determining the amount of the Gross-Up Payment, the
                  Employee shall be deemed to pay federal income taxes at
                  the highest marginal rate of federal income taxation in
                  the calendar year in which the Gross-Up Payment is to be
                  made, and state and local income taxes at the highest
                  marginal rate of taxation in either the state and locality
                  of the Employee's place of employment at the time of the
                  Change in Control or in the state and locality of
                  residence at the time or times of payment, as applicable,
                  net of the maximum reduction in federal income taxes that
                  could be obtained from the deduction of the state and
                  local taxes.

                           3.5(b) Subject to the provisions of subsection
                  3.5(c), all determinations required to be made under this
                  section, including whether and when a Gross-Up Payment is
                  required and the amount of such Gross-Up Payment and the
                  assumptions to be utilized in arriving at such
                  determination, shall be made by Ernst & Young LLP ("the
                  "Accounting Firm") which shall provide detailed supporting
                  calculations both to the Company and Executive within
                  fifteen (15) business days of the receipt of notice from
                  Executive that there has been a Payment, or such earlier
                  time as is requested by the Company. In the event that the
                  Accounting Firm is serving as accountant or auditor for
                  the individual, entity or group effecting the Change in
                  Control, Executive shall appoint another nationally
                  recognized accounting firm to make the determinations
                  required hereunder (which accounting firm shall then be
                  referred to as the Accounting Firm hereunder). All fees
                  and expenses of the Accounting Firm shall be borne solely
                  by the Company. Any Gross-Up Payment, as determined
                  pursuant to this section, shall be paid by the Company to
                  Executive within five (5) days of the receipt of the
                  Accounting Firm's determination. If the Accounting Firm
                  determines that no Excise Tax is payable by Executive, it
                  shall furnish Executive with a written opinion that
                  failure to report the Excise Tax on Executive's applicable
                  federal income tax return would not result in the
                  imposition of a negligence or similar penalty. Any
                  determination by the Accounting Firm shall be binding upon
                  the Company and Executive. As a result of the uncertainty
                  in the application of Section 4999 of the Code at the time
                  of the initial determination by the Accounting Firm
                  hereunder, it is possible that Gross-Up Payments which
                  will not have been made by the Company should have been
                  made (an "Underpayment"), consistent with the calculations
                  required to be made hereunder. In the event that the
                  Company exhausts its remedies pursuant to subsection
                  3.5(c) and Executive thereafter is required to make a
                  payment of any Excise Tax, the Accounting Firm shall
                  determine the amount of the Underpayment that has occurred
                  and any such Underpayment shall be promptly paid by the
                  Company to or for the benefit of Executive.

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                           3.5(c) Executive shall notify the Company in
                  writing of any claim by the Internal Revenue Service that,
                  if successful, would require the payment by the Company of
                  the Gross-Up Payment. Such notification shall be given as
                  soon as practicable, but no later than ten (10) business
                  days after Executive is informed in writing of such claim,
                  and shall apprise the Company of the nature of such claim
                  and the date on which such claim is requested to be paid.
                  Executive shall not pay such claim prior to the expiration
                  of the thirty (30) day period following the date on which
                  Executive gives such notice to the Company (or such
                  shorter period ending on the date that any payment of
                  taxes with respect to such claim is due). If the Company
                  notifies Executive in writing prior to the expiration of
                  such period that it desires to contest such claim,
                  Executive shall:

                                  (i) give the Company any information
                           reasonably requested by the Company relating to
                           such claim;

                                  (ii) take such action in connection with
                           contesting such claim as the Company shall
                           reasonably request in writing from time to time,
                           including without limitation, accepting legal
                           representation with respect to such claim by an
                           attorney reasonably selected by the Company;

                                  (iii) cooperate with the Company in good
                           faith in order effectively to contest such claim;
                           and
                                  (iv) permit the Company to participate in
                           any proceedings relating to such claim;

                  provided, however, that the Company shall bear and pay
                  directly all costs and expenses (including additional
                  interest and penalties) incurred in connection with such
                  contest and shall indemnify and hold Executive harmless,
                  on an after-tax basis, for any Excise Tax or income tax
                  (including interest and penalties with respect thereto)
                  imposed as a result of such representation and payment of
                  costs and expenses. Without limitation on the foregoing
                  provisions of this subsection, the Company shall control
                  all proceedings taken in connection with such contest and,
                  at its sole option, may pursue or forgo any and all
                  administrative appeals, proceedings, hearings and
                  conferences with the taxing authority in respect of such
                  claim and may, at its sole option, either direct Executive
                  to pay the tax claimed and sue for a refund or contest the
                  claim in any permissible manner, and Executive agrees to
                  prosecute such contest to a determination before any
                  administrative tribunal, in a court of initial
                  jurisdiction and in one or more appellate courts, as the
                  Company shall determine; provided, however, that if the
                  Company directs Executive to pay such claim and sue for a
                  refund, the Company shall advance the amount of such
                  payment to Executive, on an interest-free basis, and shall
                  indemnify and hold Executive harmless, on an after-tax
                  basis, from any Excise Tax or income tax (including
                  interest or penalties with respect thereto) imposed with
                  respect to such advance or with respect to any imputed
                  income with respect to such advance; and further provided
                  that any extension of the statute of limitations relating
                  to payment of taxes for the taxable year of Executive with
                  respect to which such contested amount is claimed to be
                  due is limited solely to such contested amount.
                  Furthermore, the Company's control of the contest shall be
                  limited to issues with respect to which a Gross-Up Payment
                  would be payable hereunder, and Executive shall be
                  entitled to settle or contest, as the case may be, any
                  other issue raised by the Internal Revenue Service or any
                  other taxing authority.

                           3.5(d) If, after the receipt by Executive of an
                  amount advanced by the Company pursuant to subsection
                  3.5(c), Executive becomes entitled to receive any refund
                  with

                                   - 10 -

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<PAGE>

                  respect to such claim, Executive shall (subject to the
                  Company's complying with the requirements of subsection
                  3.5(c)) promptly pay to the Company the amount of such
                  refund (together with any interest paid or credited
                  thereon after taxes applicable thereto). If, after the
                  receipt by Executive of an amount advanced by the Company
                  pursuant to subsection 3.5(c), a determination is made
                  that Executive shall not be entitled to any refund with
                  respect to such claim and the Company does not notify
                  Executive in writing of its intent to contest such denial
                  of refund prior to the expiration of thirty (30) days
                  after such determination, then such advance shall be
                  forgiven and shall not be required to be repaid and the
                  amount of such advance shall offset, to the extent
                  thereof, the amount of Gross-Up Payment required to be
                  paid.

                  3.6 NON-EXCLUSIVITY OF RIGHTS. Nothing in this Agreement
shall prevent or limit the Executive's entitlement to accrued benefits under
any plan, program, policy or practice provided by the Company and for which
the Executive may qualify. Amounts which are vested benefits of which the
Executive is otherwise entitled to receive under any plan, policy, practice
or program of, or any contract or agreement with, the Company at or
subsequent to the Date of Termination, shall be payable in accordance with
such plan, policy, practice or program or contract or agreement except as
explicitly modified by this Agreement.

                  3.7 FULL SETTLEMENT. The Company's obligation to make the
payments provided for in this Agreement and otherwise to perform its
obligations hereunder shall not be affected by any set-off, counterclaim,
recoupment, defense or other claim, right or action which the Company may
have against the Executive or others. In no event shall the Executive be
obligated to seek other employment or take any other action by way of
mitigation of the amounts payable to the Executive under any of the
provisions of this Agreement and such amounts shall not be reduced whether
or not the Executive obtains other employment.

                  3.8 RESOLUTION OF DISPUTES. If after a Change in Control
there shall be any dispute between the Company and the Executive (i) in the
event of any termination of the Executive's employment by the Company,
whether such termination was for Cause or Disability, or (ii) in the event
of any termination of employment by the Executive, whether Good Reason
existed, then, unless and until there is a final, nonappealable judgment by
a court of competent jurisdiction declaring that such termination was for
Cause or that the determination by the Executive of the existence of Good
Reason was not made in good faith, the Company shall pay all amounts, and
provide all benefits, to the Executive and/or the Executive's family or
other beneficiaries, as the case may be, that the Company would be required
to pay or provide pursuant to this Agreement as though such termination were
by the Company without Cause or by the Executive with Good Reason; provided,
however, that the Company shall not be required to pay any disputed amounts
pursuant to this Section except upon receipt of an undertaking by or on
behalf of the Executive to repay all such amounts to which the Executive is
ultimately adjudged by such court not to be entitled.

                  3.9 CONDITIONS TO PAYMENTS. To be eligible to receive (and
continue to receive) and retain the payments and benefits described in
Section 3.1(c) or 3.2 (b), Executive must execute and deliver to the Company
an agreement, in form and substance satisfactory to the Company, effectively
releasing and giving up all claims Executive may have against the Company or
any of its subsidiaries or affiliates (and each of their respective
employees, officers, plans or agents) arising out of any facts or conduct
occurring prior to that date. The agreement will be prepared by the Company
and provided to Executive at the time Executive's employment is terminated
or as soon as administratively practicable thereafter. The agreement will
require Executive to consult with Company representatives, and voluntarily
appear as a witness for trial or deposition (and to prepare for any such
testimony) in connection with, any claim which may be asserted by or against
the Company, or any business matter concerning the Company or any of its
transactions or operations.

                                   - 11 -

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SECTION 4:        NON-COMPETITION. The provisions of this Section 4 and any
related provisions survive termination of this Agreement and/or Executive's
employment with the Company.

                  4.1 NON-COMPETE AGREEMENT.

                           4.1(a) It is agreed that during the period
                  beginning (i) in the case where a Change of Control has
                  occurred, on the Change in Control Date, and (ii) in all
                  other cases, on the date the Executive's employment with
                  the Company terminates and ending one (1) year thereafter,
                  the Executive shall not, without prior written approval of
                  the Board, become an officer, employee, agent, partner,
                  manager, member or director of any business enterprise in
                  substantial direct competition (as defined in Section
                  4.1(b)) with the Company.

                           4.1(b) For purposes of Section 4.1, a business
                  enterprise shall be considered in substantial direct
                  competition, if such entity competes with the Company in
                  any business in which the Company or any of its direct or
                  indirect subsidiaries is engaged and is within the
                  Company's market area (as defined herein) as of the date
                  the Executive's Company employment terminates. The
                  Company's market area is defined for this purpose, as the
                  greater metropolitan St. Louis area, including without
                  limitation the City of St. Louis and the Counties of St.
                  Louis, St. Charles, and Jefferson, in Missouri and the
                  Counties of Madison and St. Clair in Illinois.

                           4.1(c) The above constraint shall not prevent the
                  Executive from making passive investments, not to exceed
                  five percent (5%), in any enterprise.

                  4.2 CONFIDENTIAL INFORMATION. The Executive shall hold in
a fiduciary capacity for the benefit of the Company all secret or
confidential information, knowledge or data relating to the Company or any
of its affiliated companies or direct or indirect subsidiaries, and their
respective businesses, which shall have been obtained by the Executive
during the Executive's employment by the Company and which shall not be or
become public knowledge (other than by acts by the Executive or
representatives of the Executive in violation of this Agreement). After
termination of the Executive's employment with the Company, the Executive
shall not, without the prior written consent of the Company, or as may
otherwise be required by law or legal process, use, or communicate or
divulge, any such information, knowledge or data to anyone other than the
Company and those designated by it. In no event shall an asserted violation
of the provisions of this Section constitute a basis for deferring or
withholding any amounts otherwise payable to the Executive under this
Agreement.

                  4.3 REMEDIES. In addition to any other remedies available
to the Company at law or in equity, the Executive's failure to comply with
the provisions of this Section 4 shall give the Company the right (in
addition to all other remedies the Company may have) to terminate any
benefits or compensation to which the Executive may be otherwise entitled
following termination of his employment hereunder. The Executive represents
that due to his education and qualifications and the significant
consideration which he will receive pursuant to this Agreement, his ability
to earn a livelihood would not be impaired if Company is granted equitable
relief to enforce the obligations set forth in Section 4 of this Agreement.
The parties acknowledge that any breach of this Section 4 by Executive will
cause irreparable harm to the Company. As a consequence, the parties agree
that if the Executive fails to abide by the terms of Section 4 of this
Agreement, the Company will be entitled to specific performance, including
immediate issuance of a temporary restraining order or preliminary
injunction enforcing this Agreement, and to judgment for damages caused by
such breach, and to any and all other remedies provided by equity or
applicable law.

                                   - 12 -

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<PAGE>

SECTION 5:        SUCCESSORS.

                  5.1 SUCCESSORS OF EXECUTIVE. This Agreement is personal to
the Executive and, without the prior written consent of the Company, the
rights (but not the obligations) shall not be assignable by the Executive
otherwise than by will or the laws of descent and distribution. This
Agreement shall inure to the benefit of and be enforceable by the
Executive's legal representatives.

                  5.2 SUCCESSORS OF COMPANY. This Agreement is freely
assignable by the Company. The Company will require any successor (whether
direct or indirect, by purchase, merger, consolidation or otherwise) to all
or substantially all of the business and/or assets of the Company to assume
expressly and agree to perform this Agreement in the same manner and to the
same extent that the Company would be required to perform it if no such
succession had taken place. Failure of the Company to obtain such agreement
prior to the effectiveness of any such succession shall be a breach of this
Agreement and shall entitle the Executive to terminate the Agreement at
Executive's option on or after the Change in Control Date for Good Reason.
As used in this Agreement, "Company" shall mean the Company as hereinbefore
defined and any successor to its business and/or assets which assumes and
agrees to perform this Agreement by operation of law, or otherwise.

SECTION 6:        MISCELLANEOUS.

                  6.1 NOTICE. For purposes of this Agreement, notices and
all other communications provided for in the Agreement shall be in writing
and shall be deemed to have been duly given when delivered or mailed by
certified or registered mail, return receipt requested, postage prepaid,
addressed to the respective addresses as set forth below; provided that all
notices to the Company shall be directed to the attention of the Chairman of
the Board, or to such other address as one party may have furnished to the
other in writing in accordance herewith, except that notice of change of
address shall be effective only upon receipt.

                                  Notice to Executive:
                                  --------------------

                                  Shaun R. Hayes
                                  34 Glen Eagles Drive
                                  St. Louis, MO 63124

                                  Notice to Company:
                                  ------------------

                                  Allegiant Bancorp, Inc.
                                  7801 Forsyth Blvd.
                                  St. Louis, MO 63105
                                  Attn: Chairman

                  6.2 VALIDITY. The invalidity or unenforceability of any
provision of this Agreement shall not affect the validity or enforceability
of any other provision of this Agreement. If any provision of Section 4, or
any part thereof, is held to be unenforceable, the court making such
determination shall have the power to modify such provisions so that the
restriction imposed thereby is no greater than what would otherwise be
permissible under the applicable law.

                  6.3 WITHHOLDING; ATTORNEYS FEES. The Company may withhold
from any amounts payable under this Agreement such Federal, state or local
taxes as shall be required to be withheld pursuant to any applicable law or
regulation. If any lawsuit is filed to declare this Agreement invalid in
whole or in part, or to enforce any party's rights or obligations under this
Agreement, then the party to this Agreement who prevails in such litigation
with respect to any such issue (other than by reason of a

                                   - 13 -

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<PAGE>

settlement) shall be entitled to recover from the other party to this
Agreement all court costs, litigation expenses and reasonable attorney's
fees incurred by that prevailing party in defending against and/or
prosecuting that issue (as the case may be).

                  6.4 WAIVER. The Executive's or the Company's failure to
insist upon strict compliance with any provision hereof or any other
provision of this Agreement or the failure to assert any right the Executive
or the Company may have hereunder, including, without limitation, the right
of the Executive to terminate employment for Good Reason pursuant to Section
3.2(ii), shall not be deemed to be a waiver of such provision or right or
any other provision or right of this Agreement.

                  6.5 ENTIRE AGREEMENT; NO AMENDMENT. This Agreement
contains the entire agreement between the parties respecting the subject
matter hereof and supersedes all prior oral or written communications and
agreements between the parties relating to employment or payments in the
event employment terminates. Neither this Agreement, nor any of its terms,
may be changed, added to, amended, waived or varied except in a writing
signed by Executive and the Company.

                  6.6 TERMINATION. This Agreement terminates on January 1,
2005 or the date Executive's employment with the Company terminates,
whichever first occurs. Termination does not affect accrued rights or
obligations (including but not limited to payment obligations under Section
3), or (if applicable) the provisions of Section 4 or any related
provisions.

         IN WITNESS WHEREOF, the Executive and, the Company, pursuant to the
authorization from its Board, have caused this Agreement to be executed in
its name on its behalf, all as of the day and year first above written.

Date: February 28, 2002             /s/ Shaun R. Hayes
                                    ----------------------------------------
                                    Shaun R. Hayes

                                    ALLEGIANT BANCORP, INC.

                                    By /s/ Jeffrey S. Schatz
                                       -------------------------------------
                                    Name: Jeffrey S. Schatz
                                         -----------------------------------
Date: February 28, 2002             Title: Executive Vice President and
                                           Chief Operations Officer
                                          ----------------------------------

                                   - 14 -<PAGE>

                                                                EXHIBIT 10.9

                           ALLEGIANT BANCORP, INC.

                           ----------------------
                        EXECUTIVE RETENTION AGREEMENT

         This Executive Retention Agreement (this "Agreement") has been
entered into as of the 1st day of January, 2002, by and between Allegiant
Bancorp, Inc., a Missouri corporation (the "Company"), and ________________,
an individual ("Executive").

                                  RECITALS

         The Board of Directors of the Company (the "Board"), has determined
that it is in the best interests of the Company and its shareholders to
reinforce and encourage the continued attention and dedication of the
Executive to the Company as a member of the Company's management and to
assure that the Company will have the continued dedication of the Executive,
notwithstanding the possibility, threat or occurrence of a Change in Control
(as defined below) with respect to the Company. The Board desires to provide
for the continued employment of the Executive, and the Executive is willing
to commit to continue to serve the Company. Additionally, the Board believes
it is imperative to diminish the inevitable distraction of the Executive by
virtue of the personal uncertainties and risks created by a pending or
threatened Change in Control, to encourage the Executive's full attention
and dedication to the Company currently and in the event of any threatened
or pending Change in Control, and to provide the Executive with compensation
and benefits arrangements upon a termination of employment after a Change in
Control which ensure that the compensation and benefits expectations of the
Executive will be satisfied and which are competitive with those of other
corporations. Therefore, in order to accomplish these objectives, the Board
has caused the Company to enter into this Agreement.

                          IT IS AGREED AS FOLLOWS:

SECTION 1:        DEFINITIONS AND CONSTRUCTION.

                  1.1 DEFINITIONS. For purposes of this Agreement, the
following words and phrases, whether or not capitalized, shall have the
meanings specified below, unless the context plainly requires a different
meaning.

                           1.1(a) "ANNUAL BASE SALARY" shall mean the rate
                  of base salary (excluding benefits, bonuses, incentive
                  compensation or other forms of compensation or benefits)
                  at which Executive is being paid as of a particular date.

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

                           1.1(c) "CHANGE IN CONTROL" means:

                                  (i) The acquisition by any individual,
                           entity or group, or a Person of ownership of 30%
                           or more of either (a) the then outstanding shares
                           of common stock of the Company (the "Outstanding
                           Company Common Stock") or (b) the combined voting
                           power of the then outstanding voting securities
                           of the Company entitled to vote generally in the
                           election of directors (the "Outstanding Company
                           Voting Securities"); or

                                  (ii) Individuals who, as of the date
                           hereof, constitute the Board (the "Incumbent
                           Board") cease for any reason to constitute at
                           least a majority of the Board; provided, however,
                           that for purposes of the definition of "Incumbent

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                           Board," any individual becoming a director
                           subsequent to the date hereof whose election, or
                           nomination for election by the Company's
                           shareholders, was approved by a vote of at least
                           a majority of the directors then comprising the
                           Incumbent Board shall be considered as though
                           such individual were a member of the Incumbent
                           Board, but excluding, as a member of the
                           Incumbent Board, any such individual whose
                           initial assumption of office occurs as a result
                           of either an actual or threatened election
                           contest (as such terms are used in Rule l4a-11 of
                           Regulation l4A promulgated under the Exchange
                           Act) or other actual or threatened solicitation
                           of proxies or consents by or on behalf of a
                           Person other than the Board; or

                                  (iii) Approval by the shareholders of the
                           Company (and subsequent consummation) of a
                           reorganization, merger or consolidation, in each
                           case, unless, following such reorganization,
                           merger or consolidation, (a) more than fifty
                           percent (50%) of, respectively, the then
                           outstanding shares of common stock of the
                           corporation resulting from such reorganization,
                           merger or consolidation and the combined voting
                           power of the then outstanding voting securities
                           of such corporation entitled to vote generally in
                           the election of directors is then beneficially
                           owned, directly or indirectly, by all or
                           substantially all of the individuals and entities
                           who were the beneficial owners, respectively, of
                           the Outstanding Company Common Stock and
                           Outstanding Company Voting Securities immediately
                           prior to such reorganization, merger or
                           consolidation in substantially the same
                           proportions as their ownership, immediately prior
                           to such reorganization, merger or consolidation,
                           of the Outstanding Company Common Stock and
                           Outstanding Company Voting Securities, as the
                           case may be, (b) no Person (excluding the
                           Company, any employee benefit plan (or related
                           trust) of the Company or such corporation
                           resulting from such reorganization, merger or
                           consolidation and any Person beneficially owning,
                           immediately prior to such reorganization, merger
                           or consolidation, directly or indirectly, twenty
                           percent (20%) or more of the Outstanding Company
                           Common Stock or Outstanding Voting Securities, as
                           the case may be) beneficially owns, directly or
                           indirectly, twenty percent (20%) or more of,
                           respectively, the then outstanding shares of
                           common stock of the corporation resulting from
                           such reorganization, merger or consolidation or
                           the combined voting power of the then outstanding
                           voting securities of such corporation, entitled
                           to vote generally in the election of directors
                           and (c) at least a majority of the members of the
                           board of directors of the corporation resulting
                           from such reorganization, merger or consolidation
                           were members of the Incumbent Board at the time
                           of the execution of the initial agreement
                           providing for such reorganization, merger or
                           consolidation; or

                                  (iv) Approval by the shareholders of the
                           Company (and consummation) of (a) a complete
                           liquidation or dissolution of the Company or (b)
                           the sale or other disposition of all or
                           substantially all of the assets of the Company,
                           other than to a corporation, with respect to
                           which following such sale or other disposition,
                           (1) more than fifty percent (50%) of,
                           respectively, the then outstanding shares of
                           common stock of such corporation and the combined
                           voting power of the then outstanding voting
                           securities of such corporation entitled to vote
                           generally in the election of directors is then
                           beneficially owned, directly or indirectly, by
                           all or substantially all of the individuals and
                           entities who were the beneficial owners,
                           respectively, of the Outstanding Company Common
                           Stock and Outstanding Company Voting Securities
                           immediately prior to such sale or other
                           disposition in substantially the same proportion
                           as their

                                    - 2 -

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<PAGE>

                           ownership, immediately prior to such sale or
                           other disposition, of the Outstanding Company
                           Common Stock and Outstanding Company Voting
                           Securities, as the case may be, (2) no Person
                           (excluding the Company and any employee benefit
                           plan (or related trust) of the Company or such
                           corporation and any Person beneficially owning,
                           immediately prior to such sale or other
                           disposition, directly or indirectly, twenty
                           percent (20%) or more of the Outstanding Company
                           Common Stock or Outstanding Company Voting
                           Securities, as the case may be) beneficially
                           owns, directly or indirectly, twenty percent
                           (20%) or more of, respectively, the then
                           outstanding shares of common stock of such
                           corporation and the combined voting power of the
                           then outstanding voting securities of such
                           corporation entitled to vote generally in the
                           election of directors and (3) at least a majority
                           of the members of the board of directors of such
                           corporation were members of the Incumbent Board
                           at the time of the execution of the initial
                           agreement or action of the Board providing for
                           such sale or other disposition of assets of the
                           Company.

                           1.1(d) "CHANGE IN CONTROL DATE" shall mean the
                  date of the Change in Control; provided, however, that the
                  Change in Control Date shall mean the date immediately
                  prior to the date the Executive's employment with the
                  Company was terminated by the Company if (i) Executive's
                  employment with the Company was terminated by the Company
                  prior to the occurrence of a Change in Control, and (ii)
                  Executive's employment (either in fact or as reasonably
                  demonstrated by Executive) was terminated either at the
                  request of a third party who has taken steps reasonably
                  calculated to effect a Change in Control, or otherwise
                  occurred in connection with or anticipation of a Change in
                  Control.

                           1.1(e) "CODE" shall mean the Internal Revenue
                  Code of 1986, as amended.

                           1.1(f) "COMPANY" means Allegiant Bancorp, Inc., a
                  Missouri corporation.

                           1.1(g) "EFFECTIVE DATE" shall mean January 1,
                  2002.

                           1.1(h) "EXCHANGE ACT" means the Securities
                  Exchange Act of 1934, as amended.

                           1.1(i) "PERSON" means any "person" within the
                  meaning of Sections 13(d) and 14(d) of the Exchange Act.

                           1.1(j) "TERM" means the period that begins on the
                  Effective Date and ends on the earlier of: (i) January 1,
                  2005, or (ii) the date Executive's employment terminates.

                  1.2 GENDER AND NUMBER. When appropriate, pronouns in this
Agreement used in the masculine gender include the feminine gender, words in
the singular include the plural, and words in the plural include the
singular.

                  1.3 HEADINGS. All headings in this Agreement are included
solely for ease of reference and do not bear on the interpretation of the
text. Accordingly, as used in this Agreement, the terms "Article" and
"Section" mean the text that accompanies the specified Article or Section of
the Agreement.

                  1.4 APPLICABLE LAW. This Agreement shall be governed by
and construed in accordance with the laws of the State of Missouri, without
reference to its conflict of law principles.

                                    - 3 -

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<PAGE>

SECTION 2:        EMPLOYMENT; EMPLOYMENT TERMINATION.

                  2.1 EMPLOYMENT. Executive is employed by the Company on an
at will basis for no definite term. Either the Company or Executive may
terminate Executive's employment at any time with or without Cause or reason
by giving notice to the other party. The Executive's employment shall
terminate automatically upon the Executive's death.

                  2.2 TERMINATION OF EMPLOYMENT PRIOR TO A CHANGE OF
CONTROL. Upon termination of Executive's employment with the Company prior
to a Change in Control, whether employment is terminated by the Company, by
Executive, or otherwise, this Agreement shall terminate and neither party
shall have any rights or obligations hereunder except to the extent provided
for under Section 3 or otherwise under this Agreement; provided, however,
that Executive shall have all rights under this Agreement as if a Change in
Control occurred on the date immediately before the date Executive's
employment with the Company was terminated by the Company if (i) Executive's
employment with the Company was terminated by the Company prior to the
occurrence of a Change in Control, and (ii) Executive's employment (either
in fact or as reasonably demonstrated by Executive) was terminated either at
the request of a third party who has taken steps reasonably calculated to
effect a Change in Control, or otherwise occurred in connection with or
anticipation of a Change in Control.

                  2.3 TERMINATION OF EMPLOYMENT AFTER A CHANGE IN CONTROL.
After a Change in Control, the following provisions shall apply.

                           2.3(a) DEATH. The Executive's employment shall
                  terminate automatically upon the Executive's death.

                           2.3(b) DISABILITY. If the Company determines in
                  good faith that the Disability of the Executive has
                  occurred (pursuant to the definition of Disability set
                  forth below), it may give to the Executive written notice
                  in accordance with Section 6.1 of its intention to
                  terminate the Executive's employment. In such event, the
                  Executive's employment with the Company shall terminate
                  effective on the thirtieth (30th) day after receipt of
                  such notice by the Executive (the "Disability Effective
                  Date"), provided that, within the thirty (30) days after
                  such receipt, the Executive shall not have returned to
                  full-time performance of the Executive's duties. For
                  purposes of this Agreement, "Disability" shall mean that
                  the Executive has been unable to perform the services
                  required of the Executive hereunder on a full-time basis
                  (with reasonable accommodation) for a period of one
                  hundred eighty (180) consecutive business days by reason
                  of a physical and/or mental condition. "Disability" shall
                  be deemed to exist when certified by a physician selected
                  by the Company or its insurers and acceptable to the
                  Executive or the Executive's legal representative (such
                  agreement as to acceptability not to be withheld
                  unreasonably). The Executive will submit to such medical
                  or psychiatric examinations and tests as such physician
                  deems necessary to make any such Disability determination.

                           2.3(c) TERMINATION FOR CAUSE. THE COMPANY MAY
                  TERMINATE THE EXECUTIVE'S EMPLOYMENT AFTER A CHANGE IN
                  CONTROL FOR "CAUSE," WHICH SHALL MEAN TERMINATION BASED
                  UPON: (I) THE EXECUTIVE'S WILLFUL AND CONTINUED FAILURE TO
                  SUBSTANTIALLY PERFORM EXECUTIVE'S DUTIES WITH THE COMPANY
                  (OTHER THAN AS A RESULT OF DISABILITY), AFTER A DEMAND FOR
                  SUBSTANTIAL PERFORMANCE IS DELIVERED TO EXECUTIVE BY THE
                  COMPANY, WHICH SPECIFICALLY IDENTIFIES THE MANNER IN WHICH
                  THE EXECUTIVE HAS NOT SUBSTANTIALLY PERFORMED EXECUTIVE'S
                  DUTIES, (II) THE EXECUTIVE'S COMMISSION OF AN ACT IN
                  CONNECTION WITH EXECUTIVE'S EMPLOYMENT CONSTITUTING A
                  CRIMINAL OFFENSE INVOLVING MORAL TURPITUDE, DISHONESTY, OR
                  BREACH OF TRUST, (III) EXECUTIVE HAS ENGAGED IN ANY
                  CONDUCT WHICH WOULD PRECLUDE EXECUTIVE FROM EMPLOYMENT
                  WITH THE COMPANY OR ANY OF ITS

                                   - 4 -

<PAGE>
<PAGE>

                  SUBSIDIARY BANKS OR CORPORATIONS, OR THE EXECUTIVE IS
                  DISQUALIFIED OR PRECLUDED FROM BEING EMPLOYED BY OR
                  PROVIDING ANY SERVICES TO THE COMPANY OR ANY OF ITS
                  SUBSIDIARY BANKS OR CORPORATIONS BY REASON OF ANY FEDERAL
                  OR STATE BANKING LAW OR REGULATION OR ANY ORDER OR WRITTEN
                  REQUEST OF ANY REGULATORY AGENCY WHICH HAS JURISDICTION
                  OVER COMPANY OR ANY OF ITS SUBSIDIARIES, OR (IV) THE
                  EXECUTIVE'S MATERIAL BREACH OF ANY PROVISION OF THIS
                  AGREEMENT. FOR PURPOSES OF THIS SECTION, NO ACT, OR
                  FAILURE TO ACT ON THE EXECUTIVE'S PART SHALL BE CONSIDERED
                  "WILLFUL" UNLESS DONE, OR OMITTED TO BE DONE, WITHOUT GOOD
                  FAITH AND WITHOUT REASONABLE BELIEF THAT THE ACT OR
                  OMISSION WAS IN THE BEST INTEREST OF THE COMPANY.
                  NOTWITHSTANDING THE FOREGOING, THE EXECUTIVE SHALL NOT BE
                  DEEMED TO HAVE BEEN TERMINATED FOR CAUSE UNLESS AND UNTIL
                  (I) EXECUTIVE RECEIVES A NOTICE OF TERMINATION (AS DEFINED
                  IN SECTION 2.4) FROM THE COMPANY, (II) EXECUTIVE IS GIVEN
                  THE OPPORTUNITY, WITH COUNSEL, TO BE HEARD BEFORE THE
                  BOARD, AND (III) THE BOARD FINDS, IN ITS GOOD FAITH
                  OPINION, THE EXECUTIVE WAS GUILTY OF THE CONDUCT SET FORTH
                  IN THE NOTICE OF TERMINATION.

                           2.3(d) GOOD REASON. After a Change In Control,
                  the Executive may voluntarily terminate Executive's
                  employment with the Company for "Good Reason," which shall
                  mean termination based upon:

                                  (i) Any action by the Company which
                           results in a material diminution in the duties or
                           responsibilities held by Executive as of the
                           Change in Control Date, excluding for this
                           purpose any action not taken in bad faith and
                           which is remedied by the Company promptly after
                           receipt of notice thereof given by the Executive
                           and any actions which are a necessary incident of
                           a merger or consolidation (e.g., the elimination
                           or consolidation of a position) provided the
                           Executive is assigned duties and responsibilities
                           of an executive nature in lieu thereof;

                                  (ii) The Company's reduction in the Annual
                           Base Salary at which the Executive was paid as of
                           the Change in Control Date;

                                  (iii) (a) the failure by the Company to
                           continue in effect any benefit or compensation
                           plan, stock ownership plan, life insurance plan,
                           health and accident plan or disability plan to
                           which the Executive was entitled as of the Change
                           in Control Date, (b) the taking of any action by
                           the Company which would adversely affect the
                           Executive's participation in, or materially
                           reduce the Executive's benefits under, any such
                           plan or benefit, or deprive the Executive of any
                           material fringe benefit enjoyed by the Executive
                           as of the Change in Control Date, or (c) the
                           failure by the Company to provide the Executive
                           with the number of paid vacation days which the
                           Executive was entitled to receive on an annual
                           basis as of the Change in Control Date;

                                  (iv) The Company's requiring the Executive
                           to be regularly based at any office or location
                           outside the greater metropolitan St. Louis area;
                           or

                                  (v) A material breach by the Company of
                           any provision of this Agreement.

                  For purposes of this Section any good faith determination
                  of "Good Reason" made by the Executive shall be
                  conclusive.

                                   - 5 -

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<PAGE>

                           2.3(e) TERMINATION WITHOUT CAUSE AFTER A CHANGE
                  IN CONTROL. After a Change in Control, the Company and
                  Executive shall continue to have the right to terminate
                  Executive's employment without Cause and for any or no
                  reason, and nothing in this Agreement shall be construed
                  as limiting the Company's or Executive's right to
                  terminate Executive's employment at any time without Cause
                  and for any or no reason.

                  2.4 NOTICE OF TERMINATION. Any termination of the
Executive's employment with the Company (other than for death) by the
Company or by the Executive, shall be communicated by Notice of Termination
to the other party, given in accordance with Section 6.1. For purposes of
this Agreement, a "Notice of Termination" means a written notice which (i)
indicates the specific termination provision in this Agreement relied upon,
(ii) to the extent applicable, sets forth in reasonable detail the facts and
circumstances claimed to provide a basis for termination of the Executive's
employment under the provision so indicated, and (iii) if the Date of
Termination (as defined below) is other than the date of receipt of such
notice, specifies the termination date (which date shall be not more than
fifteen (15) days after the giving of such notice, except as otherwise
provided for in Section 2.3(b)). The failure by the Executive or the Company
to set forth in the Notice of Termination any fact or circumstance which
contributes to a showing of Good Reason or Cause shall not waive any right
of the Executive or the Company hereunder or preclude the Executive or the
Company from asserting such fact or circumstance in enforcing the
Executive's or the Company's rights hereunder.

                  2.5 DATE OF TERMINATION. "Date of Termination" means the
effective date of termination of Executive's employment with the Company,
determined as follows: (i) if the Executive's employment is terminated after
a Change of Control by the Company for Cause, or by the Executive for Good
Reason, the Date of Termination shall be the date of receipt of the Notice
of Termination or any later date specified therein, as the case may be, (ii)
if the Executive's employment is terminated by reason of death or
Disability, the Date of Termination shall be the date of death of the
Executive or the Disability Effective Date, as the case may be, (iii) if
after a Change of Control the Executive's employment is terminated by the
Company other than for Cause, death, or Disability, or by the Executive
without Good Reason, the Date of Termination shall be the date of receipt of
the Notice of Termination, or (iv) if the Executive's employment is
terminated by the Company or Executive prior to a Change in Control other
than for Executive's death or Disability, the Date of Termination shall be
the date of receipt of the Notice of Termination; provided that if within
thirty (30) days after any Notice of Termination is given, the party
receiving such Notice of Termination notifies the other party that a dispute
exists concerning the reason for the termination, solely for the purpose of
determining the timing of any payment calculated from the Date of
Termination the Date of Termination shall be the date on which the dispute
is finally determined, either by mutual written agreement of the parties, or
by a final judgment, order or decree of a court of competent jurisdiction
(the time for appeal therefrom having expired and no appeal having been
perfected).

SECTION 3:        CERTAIN BENEFITS UPON TERMINATION.

                  3.1 TERMINATION OF EMPLOYMENT PRIOR TO A CHANGE IN
CONTROL. If, prior to a Change in Control: (i) the Company shall terminate
the Executive's employment, or (ii) the Executive shall terminate employment
with the Company, and such termination is not due to Executive's death or
Disability, then:

                           3.1(a) "Accrued Obligations": Within 30 days
                  after the Date of Termination, the Company shall pay to
                  the Executive the sum of (1) the Executive's Annual Base
                                                               -----------
                  Salary through the Date of Termination to the extent not
                  ------
                  previously paid, (2) any compensation previously deferred
                  by the Executive (together with any accrued interest or
                  earnings thereon) and (3) any accrued vacation pay; in
                  each case to the extent not previously paid.

                                   - 6 -

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<PAGE>

                           3.1(b) "Other Benefits": To the extent not
                  previously paid or provided, the Company shall timely pay
                  or provide to the Executive and/or the Executive's family
                  any other amounts or benefits required to be paid or
                  provided for which the Executive and/or the Executive's
                  family is eligible to receive pursuant to this Agreement
                  and under any plan, program, policy or practice or
                  contract or agreement of the Company as those provided
                  generally to other peer executives and their families
                  during the ninety (90) day period immediately preceding
                  the Effective Date or, if more favorable to the Executive,
                  as those provided generally after the Effective Date to
                  other peer executives of the Company and their families;
                  to the extent permissible under the terms of the
                  applicable plan and applicable law.

                           3.1(c) "Severance Amount": Company may, at its
                  option, waive the provisions of Section 4.1 hereof, in
                  which event, Executive shall not be entitled to any amount
                  in addition to that described in 3.1(a) and 3.1 (b). If
                  Employer elects not to waive the provisions of Section
                  4.1, within thirty (30) days after the Date of Termination
                  and subject to satisfaction of the provisions of Section
                  3.9 and subject to the provisions of Section 3.5, Company
                  shall begin paying to Executive twelve (12) monthly
                  installments which together equal the Employee's Annual
                                                                   ------
                  Base Salary. Payments shall be made in accordance with the
                  -----------
                  payroll practice of Company but no less frequently than
                  once a month, as such amount may be reduced pursuant to
                  the provisions of Section 3.5. Executive's right to
                  receive the Severance Amount under this Section 3.1(c) is
                  conditioned on Executive's compliance with Section 4.1.

                  3.2 BENEFITS UPON TERMINATION OF EMPLOYMENT AFTER A CHANGE
IN CONTROL WITHOUT CAUSE OR FOR GOOD REASON. If a Change in Control occurs
while Executive is employed by the Company, and within three (3) years after
a Change in Control: (i) the Company shall terminate the Executive's
employment without Cause, or (ii) the Executive shall terminate employment
with the Company for Good Reason, then upon satisfaction of the conditions
set forth in Section 3.9 below (with respect to the payments specified in
Section 3.2 (b)) the Executive shall be entitled to the benefits provided
below:

                           3.2(a) "Accrued Obligations": Within thirty (30)
                  days after the Date of Termination, the Company shall pay
                  to the Executive the sum of (1) the Executive's Annual
                  Base Salary through the Date of Termination to the extent
                  not previously paid, (2) any compensation previously
                  deferred by the Executive (together with any accrued
                  interest or earnings thereon) and (3) any accrued vacation
                  pay; in each case to the extent not previously paid.

                           3.2(b) "Severance Amount": Within thirty (30)
                  days after the Date of Termination and satisfaction of the
                  provisions of Section 3.9 and subject to the provisions of
                  Section 3.5, Company shall pay to Employee a lump sum cash
                  amount or monthly installments, as Employee chooses, equal
                  to the product of 2.25 times the Employee's Highest Annual
                  Compensation. For purposes of this subparagraph, "Highest
                  Annual Compensation" shall mean the highest total annual
                  compensation (salary and incentive) paid by the Company to
                  the Employee in any one of the three most recent completed
                  calendar years preceding the Date of Termination. If
                  Employee chooses to receive this payment in a lump sum,
                  this amount shall be paid within 30 days after the
                  effective date of involuntary termination or Diminution of
                  Status; as such amount may be reduced pursuant to the
                  provisions of Section 3.5. If Employee chooses to receive
                  this payment in a series of equal monthly installments
                  over a one and one-half year period, payments shall be
                  made in accordance with the payroll practice of Company
                  but no less frequently than once a month; as such amount
                  may be reduced pursuant to the provisions of Section 3.5.

                                   - 7 -

<PAGE>
<PAGE>

                           3.2(c) "Stock Options": To the extent not
                  otherwise provided for under the terms of the Company's
                  stock option plan or the Executive's stock option
                  agreements (if any), all such stock options shall become
                  fully exercisable as of the Date of Termination and,
                  except for "incentive stock options" within the meaning of
                  Code Section 422 granted prior to the date hereof, shall
                  remain fully exercisable for six months following the Date
                  of Termination.

                           3.2(d) "Health Insurance": For the period of
                  thirty (30) months commencing on the Date of Termination,
                  the Company shall provide, at its expense, to the
                  Executive and Executive's eligible family members full
                  coverage under the Company's Health Insurance Plan (or its
                  full equivalent) and the Company's Dental Insurance Plan
                  (or its full equivalent).

                           3.2(e) "Other Benefits": To the extent not
                  previously paid or provided, the Company shall timely pay
                  or provide to the Executive and/or the Executive's family
                  any other amounts or benefits required to be paid or
                  provided for which the Executive and/or the Executive's
                  family is eligible to receive pursuant to this Agreement
                  and under any plan, program, policy or practice or
                  contract or agreement of the Company as those provided
                  generally to other peer executives and their families
                  during the ninety (90) day period immediately preceding
                  the Effective Date or, if more favorable to the Executive,
                  as those provided generally after the Effective Date to
                  other peer executives of the Company and their families;
                  to the extent permissible under the terms of the
                  applicable plan and applicable law.

                  3.3 DEATH; DISABILITY. If the Executive's employment is
terminated by reason of the Executive's death (either prior or subsequent to
a Change in Control), this Agreement shall terminate without further
obligations to the Executive's legal representatives under this Agreement,
other than for (i) payment of Accrued Obligations (as defined in Section
3.1(a)) (which shall be paid to the Executive's estate or beneficiary, as
applicable, in a lump sum in cash within thirty (30) days of the Date of
Termination); and (ii) the timely payment or provision of Other Benefits (as
defined in Section 3.1(b)), including death benefits pursuant to the terms
of any plan, policy, or arrangement of the Company.

                           If the Executive's employment is terminated by
reason of the Executive's Disability (either prior or subsequent to a Change
in Control), this Agreement shall terminate without further obligations to
the Executive, other than for (i) payment of Accrued Obligations (as defined
in Section 3.1(a)) (which shall be paid to the Executive in a lump sum in
cash within thirty (30) days of the Date of Termination) and (ii) the timely
payment or provision of Other Benefits (as defined in Section 3.1(b))
including disability benefits pursuant to the terms of any plan, policy or
arrangement of the Company.

                  3.4 TERMINATION AFTER A CHANGE OF CONTROL FOR CAUSE; OTHER
THAN GOOD REASON. If the Executive's employment shall be terminated for
Cause subsequent to a Change in Control, this Agreement shall terminate
without further obligations to the Executive other than the obligation to
pay to the Executive the Executive's Accrued Obligations (as defined in
Section 3.1(a)). If the Executive terminates employment with the Company
other than for Good Reason and subsequent to a Change of Control, if the
Executive terminates employment with the Company for Good Reason more than
three (3) years after a Change of Control, or if the Company terminates the
Executive without Cause more than three (3) years after a Change of Control,
this Agreement shall terminate without further obligations to the Executive,
other than for the payment of Accrued Obligations (as defined in Section
3.1(a)) and the timely payment or provision of Other Benefits (as defined in
Section 3.1(b)). In such case, all Accrued Obligations shall be paid to the
Executive in a lump sum in cash within thirty (30) days of the Date of
Termination.

                                   - 8 -

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<PAGE>

                  3.5 EXCESS PARACHUTE PAYMENT. Anything in this Agreement
to the contrary notwithstanding, in the event that an independent accountant
shall determine that any payment or distribution by the Company to or for
the benefit of Executive (whether paid or payable or distributed or
distributable pursuant to the terms of this Agreement or otherwise) (a
"Payment") would be nondeductible by the Company for Federal income tax
purposes because of Code Section 280G or would constitute an "excess
parachute payment" (as defined in Code Section 280G), then the aggregate
present value of amounts payable or distributable to or for the benefit of
Executive pursuant to this Agreement (such payments or distributions
pursuant to this Agreement are hereinafter referred to as "Agreement
Payments") shall be reduced (but not below zero) to the Reduced Amount. For
purposes of this paragraph, the "Reduced Amount" shall be an amount
expressed in present value which maximizes the aggregate present value of
Agreement Payments without causing any Payment to be nondeductible by the
Company because of Code Section 280G or without causing any portion of the
Payment to be subject to the excise tax imposed by Code Section 4999.

                           If the independent accountant determines that any
Payment would be nondeductible by the Company because of Code Section 280G
or that any portion of the Payment will be subject to the excise tax imposed
by Code Section 4999, the Company shall promptly give Executive notice to
that effect and a copy of the detailed calculation thereof and of the
Reduced Amount. The Executive may then elect, in Executive's sole
discretion, which and how much of the Agreement Payments shall be eliminated
or reduced (as long as after such election the aggregate present value of
the Agreement Payments equals the Reduced Amount), and shall advise the
Company in writing of Executive's election within ten (10) days of
Executive's receipt of such notice. If no such election is made by Executive
within such ten-day period, the Company may elect which and how much of the
Agreement Payments shall be eliminated or reduced (as long as after such
election the aggregate present value of the Agreement Payments equals the
Reduced Amount) and shall notify the Executive promptly of such election.
For purposes of this paragraph, present value shall be determined in
accordance with Code Section 280G(d)(4). All determinations made by the
independent accountant under this Section shall be binding upon the Company
and the Executive and shall be made within sixty (60) days of a termination
of employment of the Executive. As promptly as practicable following such
determination and the elections hereunder, the Company shall pay to or
distribute to or for the benefit of the Executive such amounts as are then
due to the Executive under this Agreement and shall promptly pay to or
distribute for the benefit of the Executive in the future such amounts as
become due to the Executive under this Agreement.

                           As a result of the uncertainty in the application
of Code Sections 280G and 4999 at the time of the initial determination by
the independent accountant hereunder, it is possible that Agreement Payments
will be made by the Company which should not have been made ("Overpayment")
or that additional Agreement Payments which have not been made by the
Company should have been made ("Underpayment"), in each case, consistent
with the calculation of the Reduced Amount hereunder. In the event that the
independent accountant, based upon the assertion of a deficiency by the
Internal Revenue Service against the Company or the Executive which the
independent accountant believes has a high probability of success,
determines that an Overpayment has been made, any such Overpayment shall be
treated for all purposes as a loan to the Executive which the Executive
shall repay to the Company together with interest at the applicable Federal
rate provided for in Code Section 7872(f)(2); provided, however, that no
amount shall be payable by the Executive to the Company if and to the extent
such payment would not reduce the amount which is subject to taxation under
Code Section 4999 or if the period of limitations for assessment of tax
under Code Section 4999 against the Executive shall have expired. In the
event that the independent accountant, based upon controlling precedent,
determines that an Underpayment has occurred, any such Underpayment shall be
promptly paid by the Company to or for the benefit of the Executive together
with interest at the applicable Federal rate provided for in Code Section
7872(f)(2)(A).

                  3.6 NON-EXCLUSIVITY OF RIGHTS. Nothing in this Agreement
shall prevent or limit the Executive's entitlement to accrued benefits under
any plan, program, policy or practice provided by the

                                   - 9 -

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<PAGE>

Company and for which the Executive may qualify. Amounts which are vested
benefits of which the Executive is otherwise entitled to receive under any
plan, policy, practice or program of, or any contract or agreement with, the
Company at or subsequent to the Date of Termination, shall be payable in
accordance with such plan, policy, practice or program or contract or
agreement except as explicitly modified by this Agreement.

                  3.7 FULL SETTLEMENT. The Company's obligation to make the
payments provided for in this Agreement and otherwise to perform its
obligations hereunder shall not be affected by any set-off, counterclaim,
recoupment, defense or other claim, right or action which the Company may
have against the Executive or others. In no event shall the Executive be
obligated to seek other employment or take any other action by way of
mitigation of the amounts payable to the Executive under any of the
provisions of this Agreement and such amounts shall not be reduced whether
or not the Executive obtains other employment.

                  3.8 RESOLUTION OF DISPUTES. If after a Change in Control
there shall be any dispute between the Company and the Executive (i) in the
event of any termination of the Executive's employment by the Company,
whether such termination was for Cause or Disability, or (ii) in the event
of any termination of employment by the Executive, whether Good Reason
existed, then, unless and until there is a final, nonappealable judgment by
a court of competent jurisdiction declaring that such termination was for
Cause or that the determination by the Executive of the existence of Good
Reason was not made in good faith, the Company shall pay all amounts, and
provide all benefits, to the Executive and/or the Executive's family or
other beneficiaries, as the case may be, that the Company would be required
to pay or provide pursuant to this Agreement as though such termination were
by the Company without Cause or by the Executive with Good Reason; provided,
however, that the Company shall not be required to pay any disputed amounts
pursuant to this Section except upon receipt of an undertaking by or on
behalf of the Executive to repay all such amounts to which the Executive is
ultimately adjudged by such court not to be entitled.

                  3.9 CONDITIONS TO PAYMENTS. To be eligible to receive (and
continue to receive) and retain the payments and benefits described in
Section 3.1(c) or 3.2 (b), Executive must execute and deliver to the Company
an agreement, in form and substance satisfactory to the Company, effectively
releasing and giving up all claims Executive may have against the Company or
any of its subsidiaries or affiliates (and each of their respective
employees, officers, plans or agents) arising out of any facts or conduct
occurring prior to that date. The agreement will be prepared by the Company
and provided to Executive at the time Executive's employment is terminated
or as soon as administratively practicable thereafter. The agreement will
require Executive to consult with Company representatives, and voluntarily
appear as a witness for trial or deposition (and to prepare for any such
testimony) in connection with, any claim which may be asserted by or against
the Company, or any business matter concerning the Company or any of its
transactions or operations.

SECTION 4:        NON-COMPETITION. The provisions of this Section 4 and any
related provisions survive termination of this Agreement and/or Executive's
employment with the Company.

                  4.1 NON-COMPETE AGREEMENT.

                           4.1(a) It is agreed that during the period
                  beginning (i) in the case where a Change of Control has
                  occurred, on the Change in Control Date, and (ii) in all
                  other cases, on the date the Executive's employment with
                  the Company terminates and ending one (1) year thereafter,
                  the Executive shall not, without prior written approval of
                  the Board, become an officer, employee, agent, partner,
                  manager, member or director of any business enterprise in
                  substantial direct competition (as defined in Section
                  4.1(b)) with the Company.

                                   - 10 -

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<PAGE>

                           4.1(b) For purposes of Section 4.1, a business
                  enterprise shall be considered in substantial direct
                  competition, if such entity competes with the Company in
                  any business in which the Company or any of its direct or
                  indirect subsidiaries is engaged and is within the
                  Company's market area (as defined herein) as of the date
                  the Executive's Company employment terminates. The
                  Company's market area is defined for this purpose, as the
                  greater metropolitan St. Louis area, including without
                  limitation the City of St. Louis and the Counties of St.
                  Louis, St. Charles, and Jefferson, in Missouri and the
                  Counties of Madison and St. Clair in Illinois.

                           4.1(c) The above constraint shall not prevent the
                  Executive from making passive investments, not to exceed
                  five percent (5%), in any enterprise.

                  4.2 CONFIDENTIAL INFORMATION. The Executive shall hold in
a fiduciary capacity for the benefit of the Company all secret or
confidential information, knowledge or data relating to the Company or any
of its affiliated companies or direct or indirect subsidiaries, and their
respective businesses, which shall have been obtained by the Executive
during the Executive's employment by the Company and which shall not be or
become public knowledge (other than by acts by the Executive or
representatives of the Executive in violation of this Agreement). After
termination of the Executive's employment with the Company, the Executive
shall not, without the prior written consent of the Company, or as may
otherwise be required by law or legal process, use, or communicate or
divulge, any such information, knowledge or data to anyone other than the
Company and those designated by it. In no event shall an asserted violation
of the provisions of this Section constitute a basis for deferring or
withholding any amounts otherwise payable to the Executive under this
Agreement.

                  4.3 REMEDIES. In addition to any other remedies available
to the Company at law or in equity, the Executive's failure to comply with
the provisions of this Section 4 shall give the Company the right (in
addition to all other remedies the Company may have) to terminate any
benefits or compensation to which the Executive may be otherwise entitled
following termination of his employment hereunder. The Executive represents
that due to his education and qualifications and the significant
consideration which he will receive pursuant to this Agreement, his ability
to earn a livelihood would not be impaired if Company is granted equitable
relief to enforce the obligations set forth in Section 4 of this Agreement.
The parties acknowledge that any breach of this Section 4 by Executive will
cause irreparable harm to the Company. As a consequence, the parties agree
that if the Executive fails to abide by the terms of Section 4 of this
Agreement, the Company will be entitled to specific performance, including
immediate issuance of a temporary restraining order or preliminary
injunction enforcing this Agreement, and to judgment for damages caused by
such breach, and to any and all other remedies provided by equity or
applicable law.

SECTION 5:        SUCCESSORS.

                  5.1 SUCCESSORS OF EXECUTIVE. This Agreement is personal to
the Executive and, without the prior written consent of the Company, the
rights (but not the obligations) shall not be assignable by the Executive
otherwise than by will or the laws of descent and distribution. This
Agreement shall inure to the benefit of and be enforceable by the
Executive's legal representatives.

                  5.2 SUCCESSORS OF COMPANY. This Agreement is freely
assignable by the Company. The Company will require any successor (whether
direct or indirect, by purchase, merger, consolidation or otherwise) to all
or substantially all of the business and/or assets of the Company to assume
expressly and agree to perform this Agreement in the same manner and to the
same extent that the Company would be required to perform it if no such
succession had taken place. Failure of the Company to obtain such agreement
prior to the effectiveness of any such succession shall be a breach of this
Agreement and shall entitle the Executive to terminate the Agreement at
Executive's option on or after the Change in

                                   - 11 -

<PAGE>
<PAGE>

Control Date for Good Reason. As used in this Agreement, "Company" shall
mean the Company as hereinbefore defined and any successor to its business
and/or assets which assumes and agrees to perform this Agreement by
operation of law, or otherwise.

SECTION 6:        MISCELLANEOUS.

                  6.1 NOTICE. For purposes of this Agreement, notices and
all other communications provided for in the Agreement shall be in writing
and shall be deemed to have been duly given when delivered or mailed by
certified or registered mail, return receipt requested, postage prepaid,
addressed to the respective addresses as set forth below; provided that all
notices to the Company shall be directed to the attention of the Chief
Executive Officer, or to such other address as one party may have furnished
to the other in writing in accordance herewith, except that notice of change
of address shall be effective only upon receipt.

                                  Notice to Executive:
                                  -------------------

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

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

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

                                  Notice to Company:
                                  -----------------

                                  Allegiant Bancorp, Inc.
                                  7801 Forsyth Blvd.
                                  St. Louis, MO 63105
                                  Attn: Chief Executive Officer

                  6.2 VALIDITY. The invalidity or unenforceability of any
provision of this Agreement shall not affect the validity or enforceability
of any other provision of this Agreement. If any provision of Section 4, or
any part thereof, is held to be unenforceable, the court making such
determination shall have the power to modify such provisions so that the
restriction imposed thereby is no greater than what would otherwise be
permissible under the applicable law.

                  6.3 WITHHOLDING; ATTORNEYS FEES. The Company may withhold
from any amounts payable under this Agreement such Federal, state or local
taxes as shall be required to be withheld pursuant to any applicable law or
regulation. If any lawsuit is filed to declare this Agreement invalid in
whole or in part, or to enforce any party's rights or obligations under this
Agreement, then the party to this Agreement who prevails in such litigation
with respect to any such issue (other than by reason of a settlement) shall
be entitled to recover from the other party to this Agreement all court
costs, litigation expenses and reasonable attorney's fees incurred by that
prevailing party in defending against and/or prosecuting that issue (as the
case may be).

                  6.4 WAIVER. The Executive's or the Company's failure to
insist upon strict compliance with any provision hereof or any other
provision of this Agreement or the failure to assert any right the Executive
or the Company may have hereunder, including, without limitation, the right
of the Executive to terminate employment for Good Reason pursuant to Section
3.2(ii), shall not be deemed to be a waiver of such provision or right or
any other provision or right of this Agreement.

                  6.5 ENTIRE AGREEMENT; NO AMENDMENT. This Agreement
contains the entire agreement between the parties respecting the subject
matter hereof and supersedes all prior oral or written communications and
agreements between the parties relating to employment or payments in the

                                   - 12 -

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<PAGE>

event employment terminates. Neither this Agreement, nor any of its terms,
may be changed, added to, amended, waived or varied except in a writing
signed by Executive and the Company.

                  6.6 TERMINATION. This Agreement terminates on January 1,
2005 or the date Executive's employment with the Company terminates,
whichever first occurs. Termination does not affect accrued rights or
obligations (including but not limited to payment obligations under Section
3), or (if applicable) the provisions of Section 4 or any related
provisions.

                                   - 13 -

<PAGE>
<PAGE>

         IN WITNESS WHEREOF, the Executive and, the Company, pursuant to the
authorization from its Board, have caused this Agreement to be executed in
its name on its behalf, all as of the day and year first above written.

Date: February   , 2002
               --                        -----------------------------------
                                         -------------------

                                         ALLEGIANT BANCORP, INC.

                                         By
                                            --------------------------------
                                         Name:
                                              ------------------------------
Date: February   , 2002                  Title:
               --                              -----------------------------

                                   - 14 -

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