Document:

<PAGE>
                                                                    EXHIBIT 10.8

                                 BAY CITIES BANK
                     SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN

                             PARTICIPATION AGREEMENT

         THIS PARTICIPATION AGREEMENT (the "Participation Agreement") is entered
into as of this 25th day of January, 2002 by and between Bay Cities Bank (the
"Employer"), and GREG BRYANT, an executive of the Employer (the "Participant").

                                    RECITALS:

         WHEREAS, the Employer has adopted the Bay Cities Bank Supplemental
Executive Retirement Plan ("Plan") effective as of January 25, 2002, and the
Administrator has determined that the Participant shall be eligible to
participate in the Plan on the terms and conditions set forth in this
Participation Agreement and the Plan.

         NOW, THEREFORE, in consideration of the foregoing and the agreements
and covenants set forth herein, the parties agree as follows:

         1. DEFINITIONS. Except as otherwise provided, or unless the context
otherwise requires, the terms used in this Participation Agreement shall have
the same meanings as set forth in the Plan.

         2. PLAN. Plan means the Bay Cities Bank Supplemental Executive
Retirement Plan, as the same may be altered or supplemented in any validly
executed Participation Agreement.

         3. INCORPORATION OF PLAN. The Plan, a copy of which is attached hereto
as Exhibit A, is hereby incorporated into this Participation Agreement as if
fully set forth herein, and the parties hereby agree to be bound by all of the
terms and provisions contained in the Plan. The Participant hereby acknowledges
receipt of a copy of the Plan and, subject to the foregoing, confirms his
understanding and acceptance of all of the terms and conditions contained
therein.

         4. EFFECTIVE DATE OF PARTICIPATION. The effective date of the
Participant's participation in the Plan shall be January 25, 2002 (the
"Participation Date").

         5. NORMAL RETIREMENT AGE. The Participant's Normal Retirement Age for
purposes of the Plan and this Participation Agreement is age sixty-five (65).

         6. PROHIBITION AGAINST FUNDING. Should any investment be acquired in
connection with the liabilities assumed under this Plan and Participation
Agreement, it is expressly understood and agreed that the Participants and
Beneficiaries shall not have any right with respect to, or claim against, such
assets nor shall any such purchase be construed to create a trust of any kind or
a fiduciary relationship between the Employer and the Participants, their
Beneficiaries, or any other person. Any such assets shall be and remain a part
of the general, unpledged, unrestricted assets of the Employer, subject to the
claims of its general creditors. It is
<PAGE>

the express intention of the parties hereto that this arrangement shall be
unfunded for tax purposes and for purposes of Title I of ERISA. The Participant
shall be required to look to the provisions of the Plan and to the Employer
itself for enforcement of any and all benefits due

under this Participation Agreement, and, to the extent the Participant acquires
a right to receive payment under the Plan and this Participation Agreement, such
right shall be no greater than the right of any unsecured general creditor of
the Employer. The Employer shall be designated the owner and beneficiary of any
investment acquired in connection with its obligation under the Plan and this
Participation Agreement.

         7. PROVISIONS RELATED TO SERP BENEFIT.

                  a.       BENEFIT. The SERP Benefit for the Participant shall
                           be an annual payment of ONE HUNDRED AND FIFTY
                           THOUSAND DOLLARS ($150,000), for a period of fifteen
                           (15) years beginning in the year of the last to occur
                           of Participant's termination of employment or
                           attaining Normal Retirement Age; provided, however,
                           that the amount of such annual payment shall be
                           subject to the vesting provisions set forth in
                           subparagraph b. below.

                  b.       VESTING. Participant's right to payment of the SERP
                           Benefit shall begin to vest after completion of ten
                           (10) continuous Years of Service from the date
                           hereof. For each Year of Service thereafter
                           completed, Participant shall vest in and be entitled
                           to a percentage of the SERP Benefit described in
                           subparagraph a. above along the following schedule:

                           YEARS OF SERVICE          PERCENTAGE VESTED
                           ----------------          -----------------

                                  1                  Ten Percent (10%)

                                  2                  Fifteen Percent (15%) plus
                                                     amounts previously vested
                                                     for a total of Twenty-Five
                                                     Percent (25%)

                                  3                  Fifteen Percent (15%) plus
                                                     amounts previously vested
                                                     for a total of Forty
                                                     Percent (40%)

                                  4                  Fifteen Percent (15%) plus
                                                     amounts previously vested
                                                     for a total of Fifty-Five
                                                     Percent (55%)

                                  5                  Fifteen Percent (15%) plus
                                                     amounts previously vested
                                                     for a total of Seventy
                                                     Percent (70%)

                                  6                  Fifteen Percent (15%) plus
                                                     amounts previously vested
                                                     for a total of Eighty-Five
                                                     Percent (85%)

                                  7                  Fifteen Percent (15%) plus
                                                     amounts previously vested
                                                     for a total of One Hundred
                                                     Percent (100%)

                                       2
<PAGE>

                  c.       If Participant shall terminate employment before
                           becoming fully vested in accordance with the
                           foregoing schedule, then the Employer shall begin
                           paying Participant the percentage of the SERP Benefit
                           in which the Participant was vested at the time of
                           termination of employment when the Participant
                           attains or would have attained Normal Retirement Age.
                           In the alternative, the Employer may, at its sole
                           option, pay to the Participant the present commuted
                           value of such SERP Benefit payment, calculated as of
                           the date of termination of employment in accordance
                           with generally accepted actuarial principles. In the
                           event Participant terminates employment prior to
                           becoming vested in at least some percentage of the
                           SERP Benefit in accordance with the foregoing
                           schedule, the Participant shall forfeit any and all
                           rights to payment of the SERP Benefit.

                  d.       CHANGE OF CONTROL. Notwithstanding the forgoing
                           provisions, upon the occurrence of a Change of
                           Control, as defined in the Plan, Participant shall
                           immediately become One Hundred Persons (100%) vested
                           in the SERP Benefit as described in subparagraph a.
                           above.

                  e.       PARTICIPANT DISABILITY. Notwithstanding the foregoing
                           provisions, if Participant terminates employment due
                           to Disability, Participant shall immediately become
                           On Hundred Percent (100%) vested in the SERP Benefit
                           as described in paragraph a above.

                  f.       FORM OF SERP BENEFIT PAYMENT. The annual SERP Benefit
                           will be paid equally in monthly installments during
                           the payment period. Each monthly installment shall
                           equal one-twelfth of the total annual SERP Benefit.
                           Upon the Participant's death all remaining payments
                           shall be paid to the Participant's Beneficiary(ies).
                           Such distribution of the aforementioned SERP Benefit
                           shall commence on the first day of the calendar month
                           next following the Participant's Normal Retirement or
                           death.

                  g.       BENEFICIARY. Each Participant may, from time to time,
                           designate one or more persons (who may be any one or
                           more members of such person's family or other
                           persons, administrators, trusts, foundations or other
                           entities) as his Beneficiary under the Participation
                           Agreement. Such designation shall be made on a form
                           prescribed by the Administrator (example of such form
                           is attached hereto as Exhibit B). Each Participant
                           may at any time, and from time to time, change any
                           previous Beneficiary designation, without notice to
                           or consent of any previously designated Beneficiary,
                           by amending his previous designation on a form
                           prescribed by the Administrator. If no person shall
                           be designated by the Participant as a Beneficiary, or
                           if the designated Beneficiary shall not survive the
                           Participant, payment of his interest shall be made to
                           the Participant's estate. If more than one person is
                           the beneficiary of a deceased Participant, each such
                           person shall receive a pro rata share of any death
                           benefit payable unless otherwise designated on the
                           applicable form.

                                       3
<PAGE>

         8. GENERAL PROVISIONS

                  a.       NO ASSIGNMENT.

                           No benefit under the Participation Agreement shall be
                           subject in any manner to anticipation, alienation,
                           sale, transfer, assignment, pledge, encumbrance, or
                           charge, and any such action shall be void for all
                           purposes of the Participation Agreement. No benefit
                           shall in any manner be subject to the debts,
                           contracts, liabilities, engagements, or torts of any
                           person, nor shall it be subject to attachments or
                           other legal process for or against any person, except
                           to such extent as may be required by law.

                  b.       HEADINGS.

                           The headings contained in the Participation Agreement
                           are inserted only as a matter of convenience and for
                           reference and in no way define, limit, enlarge, or
                           describe the scope or intent of this Plan nor in any
                           way shall they affect this Participation Agreement or
                           the construction of any provision thereof.

                  c.       TERMS.

                           Capitalized terms shall have meanings as defined
                           herein. Singular nouns shall be read as plural,
                           masculine pronouns shall be read as feminine, and
                           vice versa, as appropriate.

                  d.       SUCCESSORS.

                           This Participation Agreement shall be binding upon
                           each of the parties and shall also be binding upon
                           their respective successors the Employer's assigns.

                  e.       AMENDMENTS.

                           This Participant Agreement may not be modified or
                           amended except by a duly executed instrument in
                           writing signed by the Employer and the Participant.

                                       4
<PAGE>

         IN WITNESS WHEREOF, each of the parties has caused this Participation
Agreement to be executed as of the day first above written.

PARTICIPANT:                               BAY CITIES BANK:

                                           By:
------------------------------                 ---------------------------------
GREG BRYANT

                                           Title:
                                                  ------------------------------

ATTESTED:                                  ATTESTED:

By: __________________________             By: _________________________________

Title: _______________________             Title: ______________________________

                                       5
<PAGE>

                                    EXHIBIT A

                                 BAY CITIES BANK
                     SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN

                                       6
<PAGE>

                                    EXHIBIT B

                             BENEFICIARY DESIGNATION

         In the event of the Participant's death, any benefits to which the
Participant may be entitled shall be paid to the Beneficiary designated below.
This Beneficiary Designation shall be subject to the terms and conditions set
forth in the Plan and shall supersede all prior Beneficiary Designations made by
the Participant. This Beneficiary Designation shall be attached to and become
part of that certain Participation Agreement, dated as of _________________,
2002, between the Employer and the Participant.

                  Primary Beneficiary:

                  Secondary Beneficiary:

         IN WITNESS WHEREOF, the Participant has executed this Beneficiary
Designation as of the date indicated.

                                         ---------------------------------------
                                         Signature

                                         ---------------------------------------
                                         Printed Name of Participant

                                         Dated:
                                               ---------------------------------

                                       7<PAGE>
                                                                    EXHIBIT 10.9

                                 BAY CITIES BANK
                     SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN

                             PARTICIPATION AGREEMENT

         THIS PARTICIPATION AGREEMENT (the "Participation Agreement") is entered
into as of this 25th day of January, 2002 by and between Bay Cities Bank (the
"Employer"), and MARTI J. WARREN, an executive of the Employer (the
"Participant").

                                    RECITALS:

         WHEREAS, the Employer has adopted the Bay Cities Bank Supplemental
Executive Retirement Plan ("Plan") effective as of January 25, 2002, and the
Administrator has determined that the Participant shall be eligible to
participate in the Plan on the terms and conditions set forth in this
Participation Agreement and the Plan;

         NOW, THEREFORE, in consideration of the foregoing and the agreements
and covenants set forth herein, the parties agree as follows:

         1. DEFINITIONS. Except as otherwise provided, or unless the context
otherwise requires, the terms used in this Participation Agreement shall have
the same meanings as set forth in the Plan.

         2. PLAN. Plan means the Bay Cities Bank Supplemental Executive
Retirement Plan, as the same may be altered or supplemented in any validly
executed Participation Agreement.

         3. INCORPORATION OF PLAN. The Plan, a copy of which is attached hereto
as Exhibit A, is hereby incorporated into this Participation Agreement as if
fully set forth herein, and the parties hereby agree to be bound by all of the
terms and provisions contained in the Plan. The Participant hereby acknowledges
receipt of a copy of the Plan and, subject to the foregoing, confirms his
understanding and acceptance of all of the terms and conditions contained
therein.

         4. EFFECTIVE DATE OF PARTICIPATION. The effective date of the
Participant's participation in the Plan shall be January 25, 2002 (the
"Participation Date").

         5. NORMAL RETIREMENT AGE. The Participant's Normal Retirement Age for
purposes of the Plan and this Participation Agreement is age sixty-five (65).

         6. PROHIBITION AGAINST FUNDING. Should any investment be acquired in
connection with the liabilities assumed under the Plan and Participation
Agreement, it is expressly understood and agreed that the Participants and
Beneficiaries shall not have any right with respect to, or claim against, such
assets nor shall any such purchase be construed to create a trust of any kind or
a fiduciary relationship between the Employer and the Participants, their
Beneficiaries, or any other person. Any such assets shall be and remain a part
of the general, unpledged, unrestricted assets of the Employer, subject to the
claims of its general creditors. It is the express intention of the parties
hereto that this arrangement shall be unfunded for tax purposes and for purposes
of Title I of ERISA. The Participant shall be required to look to the provisions
<PAGE>

of the Plan and to the Employer itself for enforcement of any and all benefits
due under this Participation Agreement, and, to the extent the Participant
acquires a right to receive payment under the Plan and this Participation
Agreement, such right shall be no greater than the right of any unsecured
general creditor of the Employer. The Employer shall be designated the owner and
beneficiary of any investment acquired in connection with its obligation under
the Plan and this Participation Agreement.

         7. PROVISIONS RELATED TO SERP BENEFIT.

                  a.       BENEFIT. The SERP Benefit for the Participant shall
                           be an annual payment of SIXTY THOUSAND DOLLARS
                           ($60,000), for a period of fifteen (15) years
                           beginning in the year of the last to occur of
                           Participant's termination of employment or attaining
                           Normal Retirement Age; provided, however, that the
                           amount of such annual payment shall be subject to the
                           vesting provisions set forth in subparagraph b.
                           below.

                  b.       VESTING. Participant's right to payment of the SERP
                           Benefit shall begin to vest after completion of ten
                           (10) continuous Years of Service from the date
                           hereof. For each Year of Service thereafter
                           completed, Participant shall vest in and be entitled
                           to a percentage of the SERP Benefit described in
                           subparagraph a. above along the following schedule:

                           YEARS OF SERVICE          PERCENTAGE VESTED
                           ----------------          -----------------

                                  1                  Twenty Percent (20%)

                                  2                  Twenty Percent (20%) plus
                                                     amounts previously vested
                                                     for a total of Forty
                                                     Percent (40%)

                                  3                  Twenty Percent (20%) plus
                                                     amounts previously vested
                                                     for a total of Sixty
                                                     Percent (60%)

                                  4                  Twenty Percent (20%) plus
                                                     amounts previously vested
                                                     for a total of Eighty
                                                     Percent (80%)

                                  5                  Twenty Percent (20%) plus
                                                     amounts previously vested
                                                     for a total of One Hundred
                                                     Percent (100%)

                  c.       If Participant shall terminate employment before
                           becoming fully vested in accordance with the
                           foregoing schedule, then the Employer shall begin
                           paying Participant the percentage of the SERP Benefit
                           in which the Participant was vested at the time of
                           termination of employment when the Participant
                           attains or would have attained Normal Retirement Age.
                           In the alternative, the Employer may, at its sole
                           option, pay to the Participant the present commuted
                           value of such SERP Benefit payment, calculated as of
                           the date of termination of employment in accordance
                           with generally accepted actuarial principles. In the

                                       2
<PAGE>

                           event Participant terminates employment prior to
                           becoming vested in at least some percentage of the
                           SERP Benefit in accordance with the foregoing
                           schedule, the Participant shall forfeit any and all
                           rights to payment of the SERP Benefit.

                  d.       CHANGE OF CONTROL. Notwithstanding the forgoing
                           provisions, upon the occurrence of a Change of
                           Control, as defined in the Plan, Participant shall
                           immediately become One Hundred Percent (100%) vested
                           in the SERP Benefit as described in subparagraph a.
                           above.

                  e.       PARTICIPANT DISABILITY. Notwithstanding the foregoing
                           provisions, if Participant terminates employment due
                           to Disability, Participant shall immediately become
                           One Hundred Percent (100%) vested in the SERP Benefit
                           as described in paragraph a. above.

                  f.       FORM OF SERP BENEFIT PAYMENT. The annual SERP Benefit
                           will be paid equally in monthly installments during
                           the payment period. Each monthly installment shall
                           equal one-twelfth of the total annual SERP Benefit.
                           Upon the Participant's death all remaining payments
                           shall be paid to the Participant's Beneficiary(ies).
                           Such distribution of the aforementioned SERP Benefit
                           shall commence on the first day of the calendar month
                           next following the Participant's Normal Retirement or
                           death.

                  g.       BENEFICIARY. Each Participant may, from time to time,
                           designate one or more persons (who may be any one or
                           more members of such person's family or other
                           persons, administrators, trusts, foundations or other
                           entities) as his Beneficiary under the Participation
                           Agreement. Such designation shall be made on a form
                           prescribed by the Administrator (an example of such
                           form is attached hereto as Exhibit B). Each
                           Participant may at any time, and from time to time,
                           change any previous Beneficiary designation, without
                           notice to or consent of any previously designated
                           Beneficiary, by amending his or her previous
                           designation on a form prescribed by the
                           Administrator. If no person shall be designated by
                           the Participant as a Beneficiary, or if the
                           designated Beneficiary shall not survive the
                           Participant, payment of his interest shall be made to
                           the Participant's estate. If more than one person is
                           the beneficiary of a deceased Participant, each such
                           person shall receive a pro rata share of any death
                           benefit payable unless otherwise designated on the
                           applicable form.

         8. GENERAL PROVISIONS

                  a.       NO ASSIGNMENT.

                           No benefit under the Participation Agreement shall be
                           subject in any manner to anticipation, alienation,
                           sale, transfer, assignment, pledge, encumbrance, or
                           charge, and any such action shall be void for all
                           purposes of the Participation Agreement. No benefit
                           shall in any manner be subject to the debts,
                           contracts, liabilities, engagements, or torts of any

                                       3
<PAGE>

                           person, nor shall it be subject to attachments or
                           other legal process for or against any person, except
                           to such extent as may be required by law.

                  b.       HEADINGS.

                           The headings contained in the Participation Agreement
                           are inserted only as a matter of convenience and for
                           reference and in no way define, limit, enlarge, or
                           describe the scope or intent of, or in any way affect
                           this Participation Agreement or the construction of
                           any provision thereof.

                  c.       TERMS.

                           Capitalized terms shall have meanings as defined
                           herein. Singular nouns shall be read as plural,
                           masculine pronouns shall be read as feminine, and
                           vice versa, as appropriate.

                  d.       SUCCESSORS.

                           This Participation Agreement shall be binding upon
                           each of the parties and shall also be binding upon
                           their respective successors and the Employer's
                           assigns.

                  e.       AMENDMENTS.

                           This Participant Agreement may not be modified or
                           amended except by a duly executed instrument in
                           writing signed by the Employer and the Participant.

         IN WITNESS WHEREOF, each of the parties has caused this Participation
Agreement to be executed as of the day first above written.

PARTICIPANT:                                BAY CITIES BANK:

                                            By:
--------------------------------                --------------------------------
MARTI J. WARREN
                                            Title:
                                                   -----------------------------

ATTESTED:                                   ATTESTED:

By:                                         By:
    ----------------------------                --------------------------------

Title:                                      Title:
       -------------------------                   -----------------------------

                                       4
<PAGE>

                                    EXHIBIT A

                                 BAY CITIES BANK
                     SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN

                                       5
<PAGE>

                                    EXHIBIT B

                             BENEFICIARY DESIGNATION

         In the event of the Participant's death, any benefits to which the
Participant may be entitled shall be paid to the Beneficiary designated below.
This Beneficiary Designation shall be subject to the terms and conditions set
forth in the Plan and shall supersede all prior Beneficiary Designations made by
the Participant. This Beneficiary Designation shall be attached to and become
part of that certain Participation Agreement, dated as of January 25, 2002,
between the Employer and the Participant.

                  Primary Beneficiary:

                  Secondary Beneficiary:

         IN WITNESS WHEREOF, the Participant has executed this Beneficiary
Designation as of the date indicated.

                                      ------------------------------------------
                                      Signature

                                      ------------------------------------------
                                      Printed Name of Participant

                                      Dated:
                                            ------------------------------------

                                       6

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