Document:

Exhibit 10.36

                         AMENDMENT TO EMPLOYEE AGREEMENT

     In consideration of the continued employment of Trevor Price ("Employee")
by OptiMark, Inc. and the purchase of preferred stock pursuant to the Series E
Preferred Stock Purchase Agreement dated as of June 29 2001, by and between
OptiMark Holdings, Inc., the parent of OptiMark, Inc., and the entities listed
on the Schedule of Purchasers thereto, it is hereby agreed that the terms and
conditions of the Employee Agreement executed by Employee on May 16, 2001 shall
be amended to include the terms and conditions set forth on the attached
"Non-Compete Covenant." In no event shall the Employee be entitled to severance
under both the Employee's offer letter and the attached Non-Compete Covenant.
Other than as expressly set forth herein, no term or condition set forth in the
Employee Agreement is amended, modified or affected by this amendment.

     This amendment shall be effective as of July 19, 2001.

OPTIMARK, INC.                                EMPLOYEE

/s/ Neil G. Cothen
------------------
By:                                           /s/ Trevor Price
                                              ----------------
Name:  Neil G. Cohen                           Trevor Price
Title: Executive Vice President

<PAGE>

                              NON-COMPETE COVENANT

          1.   NONCOMPETITION, ETC.
               --------------------

               (a) PRIOR TO EMPLOYEE TERMINATION DATE. Employee agrees that
until the date that Employee ceases to be an employee of OptiMark, Inc. (in any
capacity whatsoever (such date, the "Employee Termination Date"), Employee shall
devote substantially all of his working time to the business and affairs of the
Company, its subsidiaries and its parent (together, "OptiMark"). In addition,
prior to the Employment Termination Date, neither Employee nor any entity
controlled, directly or indirectly, by Employee (each, an "Employee Controlled
Entity"), shall engage in any Competitive Activity (as hereinafter defined).

               (b)  POST-EMPLOYEE TERMINATION DATE. Employee agrees that, for a
period of 12 months after the Employee Termination Date, neither Employee nor
any Employee Controlled Entity, shall engage in any Competitive Activity.

               (c)  COMPETITIVE ACTIVITy. For purposes of this Section 1,
"Competitive Activity" shall mean employment by, consulting or contracting for,
or soliciting business for, any of the following:

                    (i) any Person who, as of the Employee Termination Date, (a)
has executed either a binding agreement or a non-binding term sheet or letter of
intent with OPTIMARK, or (b) is engaged in negotiations with OPTIMARK, for
OPTIMARK to (x) license its software to such Person, or (y) design, develop, or
maintain software for the building and operating of electronic markets or
exchanges (a "Client");

                    (ii) any Person who (1) is not a Client as of the Employee
Termination date but (2) has been a Client within six (6) months of the Employee
Termination Date (a "Former Client");

                    (iii) the financial services software applications areas,
divisions or groups of OM Technology Inc., ISM Information Systems Management
Corporation, eSpeed, Inc., Perfect Commerce, Inc., Commerce One, Inc., Ariba,
Inc., VerticalNet, Inc. or i2 Technologies, Inc. (a "Direct Competitor") or the
financial services software applications areas, divisions or groups of any
Person controlled by, or under common control with, a Direct Competitor, or any
successor to or acquirer of all or substantially all of the assets of a Direct
Competitor; provided, however, that "Direct Competitor" shall also include any
area, division or group of any of the foregoing companies which is responsible
for, or performs or provides, any product or service that is substantially
similar to any product or service provided by OptiMark from which OptiMark has
generated 20% or more of OptiMark's consolidated revenue in any quarter within
the twelve months prior to the Employee Termination Date; and

<PAGE>

                    (iv) any "Competitive Exchange", defined as any third-Person
operating an electronic market or exchange where buyers and sellers may submit
orders for substantially the same products or services as an electronic market
or exchange (x) developed, designed, created or operated by OPTIMARK, or a
Person that is controlled by, or under common control with, OPTIMARK or (y) from
which OPTIMARK generates revenue based on transactions consummated in, or
subscriptions to, the electronic market or exchange..

                    A "Person" means any natural person, sole proprietorship,
partnership, limited liability company, joint venture, trust, unincorporated
organization, association, corporation, governmental authority, or any other
entity.

               (d)  TERMINATION OTHER THAN FOR CAUSE.  The noncompetition
covenant set forth in Section 1(b) above shall not apply where Employee's
employment is terminated by the Company without Cause (as hereinafter defined)
or where the Employee has been Constructively Terminated (as hereinafter
defined), unless, (i) on or before 10 Business Days following the Employee
Termination Date, the board of directors of the Company or OptiMark Holdings,
Inc. directs OPTIMARK to pay by wire transfer of immediately available funds to
an account specified by Employee an amount equal to (A) twelve times (12x)
Employee's gross monthly salary for the last complete calendar month immediately
preceding the Employee Termination Date, plus (B) any cash bonus received by
Employee during such period, and (ii) the Company agrees in writing to maintain,
at the Company's expense for the twelve (12) months following the Employee
Termination Date, health and medical insurance coverage to which Employee was
entitled as of the Employee Termination Date. A "Business Day" means any day
other than (i) a Saturday, Sunday or legal holiday, or (ii) a day on which
commercial banks in New York City are authorized or required by law or executive
order to close. "Cause" means (i) gross negligence (but not ordinary
negligence), intentional misconduct, uncured breach of any written employment
agreement with the Company, or failure to comply with any policy, guide or
standard of OPTIMARK applicable to Employee or any legally permitted directives
of the Company's Chief Executive Officer or Board of Directors of the Company;
provided, however, that such policy, guide, or standard of OPTIMARK, or any
legally permitted directives are applied consistently to all employees of the
Company who are of the substantially similar rank or level of responsibility as
Employee, or (ii) a plea of guilty or nolo contendere to, or conviction of, a
felony or crime involving moral turpitude. "Constructively Terminated" means:
(i) the continued material reduction by OptiMark of the scope of Employee's
duties, or (ii) the continued assignment to Employee of any duties materially
inconsistent with the level of Employee's position with OptiMark; provided that
neither of the foregoing events shall be deemed to result in Employee being
Constructively Terminated if Employee consents to such events or if such events
are the result of actions of OptiMark or its board of directors that are
applicable to all officers of OptiMark.

               (e)  TERRITORY. Unless otherwise specified in this Section 1,
Employee acknowledges that the business conducted by the Company is national in
nature and, accordingly, agrees that the Competition Restriction shall apply to
Employee in the United States for the applicable periods set forth in Sections
1(a) and 1(b).

<PAGE>

               (f)  REASONABLE AND NECESSARY RESTRICTIONS. Employee acknowledges
that the restrictions, prohibitions and other provisions of this Section 1 are
reasonable, fair and equitable in scope, terms and duration, are necessary to
protect the legitimate business interests of the Company and are a material
inducement to the SOFTBANK Investment. The "SOFTBANK Investment" means the
purchase of preferred stock pursuant to the Series E Preferred Stock Purchase
Agreement dated as of June 29, 2001, by and between the Company and the entities
listed on the Schedule of Purchasers thereto.Exhibit 10.37

OPTIMARK

                                    OptiMark, Inc.          201.536.7000 phone
                                    24th Floor              201.536.7070 fax
                                    10 Exchange Place
                                    Jersey City NJ 07302

                                    www.optimark.com

April 17, 2001                      PERSONAL AND CONFIDENTIAL

VIA FEDERAL EXPRESS
-------------------
Mr. Gary Meshell
1 Lakeview Court
North Brunswick, NJ 08902

Dear Mr. Meshell:

Optimark, Inc. (the "Company") is pleased to offer you the position of Executive
Vice President Sales, Marketing and Business Development. We are very
enthusiastic about your joining the team, as we continue to build Optimark, Inc.
In your role you will have a major impact on the success of this venture and the
future of the corporation. Here are the terms of the offer:

POSITION      You will serve as Executive Vice President Sales, Marketing and
Business Development and will work at the Company's New Jersey facility. You
will be responsible for such duties as are normally associated with such
position or as otherwise determined by the Board of Directors, except that the
Company agrees that you will not at any time be given a lesser title than the
one stated above.

SALARY AND BENEFITS    As compensation for the services you provide the Company,
you will be paid a base salary of two hundred and twenty five thousand dollars
($225,000.00) per annum, which will be payable in accordance with the Company's
regular payroll practices. Also, you will (i) be eligible to participate in all
employee benefits provided by the Company to its employees, including the
Company's bonus program; (ii) receive three weeks vacation per year, which is
earned pro-rata over the year; and (iii) receive 5 paid-time-off days
(personal/sick) per year. You will also receive the same paid holidays as are
observed by all of the Company's employees.

GUARANTEED BONUS      You will be paid a guaranteed bonus of fifty thousand
dollars ($50,000.00), which will be paid out to you in twelve (12) equal monthly
payments over the first year of your employment. The bonus payments will be made
on the last pay day in a given month, with the first such bonus payment made on
May 31, 2001. The Company will discontinue making bonus payments to you
effective as of the date you leave the employ of the Company.

PROPOSED COMMISSION STRUCTURE      A commission structure will be put into place
no later than your sixtieth (60th) day of employment. It is to be put together
by you and Robert Warshaw and subject to the Board of Directors' approval.

<PAGE>
Mr. Gary Meshell
April 17, 2001
Page 2

CONSIDERATION FOR EQUITY BONUS      At each annual review, the Company shall
consider granting Employee a reasonable and competitive number of options to
purchase common stock of the Company's parent, OptiMark Holdings, Inc., and/or
other equity-based compensation awards, which options and/or awards shall be
reasonably calculated to incentivize Employee to help the Company achieve its
financial goals; provided, however, that the Company does the same for its other
employees.

INCENTIVE STOCK OPTION      You will be eligible to participate in the "OptiMark
Holdings, Inc. 1999 Stock Plan" (the "Stock Plan"), as amended. A copy of the
Stock Plan is attached for your reference. Subject to the appropriate approvals,
including approval of the Board of Directors, and amendment of the Stock Plan,
if necessary, to increase the number of shares allocated to the Stock Plan, you
will be granted an Incentive Stock Option to purchase an aggregate number of
shares equal to one and a half percent (1.5%) of the outstanding shares of par
value $0.01 common stock of the Company's parent, OptiMark Holdings, Inc., (the
"Stock"), calculated on a fully diluted basis as of the date you commence
employment with the Company. The exercise price to purchase the Stock will be
the fair market value of the Stock as of the date upon which you commence
employment with the Company.

The specific terms and conditions of your Incentive Stock Option to purchase
shares of the Stock of the Company's parent, OptiMark Holdings, Inc., will be
set forth in the "Stock Option Agreement" issued pursuant to the Stock Plan. A
copy of the Stock Option Agreement is attached for your reference. The Stock
Option Agreement will be executed after you commence your employment with the
Company.

CHANGE IN CAPITALIZATION      In the event that the Company undergoes a change
in capitalization and creates a new stock plan for a new class of stock, the
Employee will participate in the same manner as other employees of the Company
who have an Incentive Stock Option on the common stock of the Company's parent,
OptiMark Holdings, Inc. Currently, we anticipate that the employees will be
granted non-incentive stock options under a new stock plan such that ratio of
(A) the number of options granted to an employee to (B) the total number of
options available to all employees will remain constant between the Stock Plan
and the new stock plan. We also anticipate that employees' option grants under
the existing Stock Plan will remain in tact. Further, the Company foresees that
the vesting schedule under the new stock plan will be four (4) years, with
one-quarter (1/4) of the new options vesting after the first year and the
remaining options vesting quarterly over the remaining thee (3) years. Of
course, the foregoing are subject to change at the discretion of the Company
and/or its investors.

SEPARATION FROM EMPLOYMENT AND SEVERANCE PACKAGE       In the event that the
Company terminates your employment for a reason other than for "cause", as

<PAGE>
Mr. Gary Meshell
April 17, 2001
Page 3

defined in the Company's Employee Agreement (a copy of which is attached to this
letter), you will receive severance pay in the amount of four (4) months base
salary. In addition, the Company agrees that it will continue making employment
level contributions for all employee benefit plans provided to you by the
Company during your employment, for a period of four (4) months following the
termination of your employment.

AT-WILL EMPLOYMENT      The relationship between you and the Company will be for
an unspecified term and will be considered at will. No employment contract is
created by the existence of any policy, rule or procedure in the Company's
handbook, any document of the Company, or any verbal statements made to you by
representatives of the Company. Consequently, the employment relationship
between you and the Company can be terminated at will, either by you or the
Company, with or without cause or advance notice.

EXCLUSIVITY      Your employment with the Company is considered exclusive to the
Company and, as a condition of your employment, we do not expect, nor will we
allow, you to perform services for compensation for any third party. Your
employment with the Company is also subject to and conditioned upon your
execution of the Company's Employee Agreement.

The employment terms in this letter and the Employee Agreement supersede any
other agreements or promises made to you by anyone, whether oral or written, and
comprise the final, complete and exclusive agreement between you and the
Company.

Please sign and date this letter and the Employee Agreement to indicate your
acceptance of employment at the Company under the terms described above and
return them to me in the enclosed Federal Express package. If you accept our
offer, we would like you to commence your employment with us on April 23, 2001.

We are very pleased to make you this offer and look forward to future success
for you and for Optimark, Inc. If you have any questions regarding the offer set
forth in this letter please contact me.

I look forward to hearing from you soon.

                                         Very truly yours,

<PAGE>
Mr. Gary Meshell
April 17, 2001
Page 4

                                         Optimark, Inc.

                                         By:  /s/ Robert Warshaw
                                         Robert Warshaw
                                         Chief Executive Officer

ACCEPTED BY:

/s/ Gary Meshell
----------------
Gary Meshell

Date:  4-25-01                     START DATE: May 7, 2001
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