Document:

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                                                                 EXHIBIT 10.14

                                PLC SYSTEMS INC.

            2000 NON-QUALIFIED PERFORMANCE AND RETENTION EQUITY PLAN

1.       PURPOSE

         The purpose of this 2000 Non-qualified Performance and Retention Equity
Plan (the "Plan") of PLC Systems Inc., a Yukon Territory corporation (the
"Company"), is to advance the interests of the Company's stockholders by
enhancing the Company's ability to retain and motivate persons who make (or are
expected to make) important contributions to the Company by providing such
persons with equity ownership opportunities and thereby better aligning the
interests of such persons with those of the Company's stockholders. Except where
the context otherwise requires, the term "Company" shall include any of the
Company's present or future parent or subsidiary corporations as defined in
Sections 424(e) and 424(f) of the Internal Revenue Code of 1986, as amended, and
any regulations promulgated thereunder (the "Code"), and any other business
venture (including, without limitation, joint venture or limited liability
company) in which the Company has a significant interest, as determined by the
Board of Directors of the Company (the "Board").

2.       ELIGIBILITY

         All of the Company's employees are eligible to be granted non-statutory
stock options (each, an "Option") under the Plan to purchase shares of common
stock, no par value per share, of the Company ("Common Stock"). Each person who
has been granted an Option under the Plan shall be deemed a "Participant."

3.       ADMINISTRATION, DELEGATION

         (a) ADMINISTRATION BY BOARD OF DIRECTORS. The Plan will be administered
by the Board. The Board shall have authority to grant Options and to adopt,
amend and repeal such administrative rules, guidelines and practices relating to
the Plan as it shall deem advisable. The Board may correct any defect, supply
any omission or reconcile any inconsistency in the Plan or any Option in the
manner and to the extent it shall deem expedient to carry the Plan into effect
and it shall be the sole and final judge of such expediency. All decisions by
the Board shall be made in the Board's sole discretion and shall be final and
binding on all persons having or claiming any interest in the Plan or in any
Option. No director or person acting pursuant to the authority delegated by the
Board shall be liable for any action or determination relating to or under the
Plan made in good faith.

         (b) DELEGATION TO EXECUTIVE OFFICERS. To the extent permitted by
applicable law, the Board may delegate to one or more executive officers of the
Company the power to grant Options and exercise such other powers under the Plan
as the Board may determine, provided

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that the Board shall fix the maximum number of shares subject to Options and the
maximum number of shares for any one Participant to be made by such executive
officers.

         (c) APPOINTMENT OF COMMITTEES. To the extent permitted by applicable
law, the Board may delegate any or all of its powers under the Plan to one or
more committees or subcommittees of the Board (a "Committee"). All references in
the Plan to the "Board" shall mean the Board or a Committee or the executive
officer referred to in Section 3(b) to the extent that the Board's powers or
authority under the Plan have been delegated to such Committee or executive
officer.

4.       STOCK AVAILABLE FOR OPTIONS

         (a) NUMBER OF SHARES. Subject to adjustment under Section 6, Options
may be made under the Plan for up to 400,000 shares of Common Stock. If any
Option expires or is terminated, surrendered or canceled without having been
fully exercised or is forfeited in whole or in part or results in any Common
Stock not being issued, the unused Common Stock covered by such Option shall
again be available for the grant of Options under the Plan. Shares issued under
the Plan may consist in whole or in part of authorized but unissued shares or
treasury shares.

         (b) PER-PARTICIPANT LIMIT. Subject to adjustment under Section 6, the
maximum number of shares of Common Stock with respect to which Options may be
granted to any Participant under the Plan shall be 100,000 per calendar year.

5.       STOCK OPTIONS

         (a) GENERAL. The Board may grant Options and determine the number of
shares of Common Stock to be covered by each Option, the exercise price of each
Option and the conditions and limitations applicable to the exercise of each
Option, including conditions relating to applicable federal or state securities
laws, as it considers necessary or advisable.

         (b) NON-STATUTORY STOCK OPTIONS. No Option granted under the Plan is
intended to be an "incentive stock option" as defined in Section 422 of the
Code.

         (c) EXERCISE PRICE. The Board shall establish the exercise price at the
time each Option is granted and specify it in the applicable option agreement.

         (d) DURATION OF OPTIONS. Each Option shall be exercisable at such times
and subject to such terms and conditions as the Board may specify in the
applicable option agreement, provided, however, that no Option will be granted
for a term in excess of 10 years.

         (e) EXERCISE OF OPTION. Options may be exercised by delivery to the
Company of a written notice of exercise signed by the proper person or by any
other form of notice (including electronic notice) approved by the Board
together with payment in full as specified in Section 5(f) for the number of
shares for which the Option is exercised.

                                      -2-

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         (f) PAYMENT UPON EXERCISE. Common Stock purchased upon the exercise of
an Option granted under the Plan shall be paid for as follows:

              (1) in cash or by check, payable to the order of the Company;

              (2) except as the Board may, in its sole discretion, otherwise
provide in an option agreement, by (i) delivery of an irrevocable and
unconditional undertaking by a creditworthy broker to deliver promptly to the
Company sufficient funds to pay the exercise price and any required tax
withholding or (ii) delivery by the Participant to the Company of a copy of
irrevocable and unconditional instructions to a creditworthy broker to deliver
promptly to the Company cash or a check sufficient to pay the exercise price and
any required tax withholding;

              (3) by delivery of shares of Common Stock owned by the Participant
valued at their fair market value as determined by (or in a manner approved by)
the Board in good faith ("Fair Market Value"), provided (i) such method of
payment is then permitted under applicable law and (ii) such Common Stock was
owned by the Participant at least six months prior to such delivery;

              (4) to the extent permitted by the Board, in its sole discretion,
by (i) delivery of a promissory note of the Participant to the Company on terms
determined by the Board, or (ii) payment of such other lawful consideration as
the Board may determine; or

              (5) by any combination of the above permitted forms of payment.

6.       ADJUSTMENTS FOR CHANGES IN COMMON STOCK AND CERTAIN OTHER EVENTS

         (a) CHANGES IN CAPITALIZATION. In the event of any stock split, reverse
stock split, stock dividend, recapitalization, combination of shares,
reclassification of shares, spin-off or other similar change in capitalization
or event, or any distribution to holders of Common Stock other than a normal
cash dividend, (i) the number and class of securities available under this Plan,
(ii) the per-Participant limit set forth in Section 4(b), and (iii) the number
and class of securities and exercise price per share subject to each outstanding
Option shall be appropriately adjusted by the Company (or substituted Options
may be granted, if applicable) to the extent the Board shall determine, in good
faith, that such an adjustment (or substitution) is necessary and appropriate.
If this Section 6(a) applies and Section 6(c) also applies to any event, Section
6(c) shall be applicable to such event, and this Section 6(a) shall not be
applicable.

         (b) LIQUIDATION OR DISSOLUTION. In the event of a proposed liquidation
or dissolution of the Company, the Board shall upon written notice to the
Participants provide that all then unexercised Options will (i) become
exercisable in full as of a specified time at least 10 business days prior to
the effective date of such liquidation or dissolution and (ii) terminate
effective upon such liquidation or dissolution, except to the extent exercised
before such effective date.

                                      -3-

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         (c) REORGANIZATION AND ACQUISITION EVENTS.

              (1) DEFINITIONS.

                   (a)  A "Reorganization Event" shall mean: (i) any merger or
                        consolidation of the Company with or into another entity
                        as a result of which all of the Common Stock of the
                        Company is converted into or exchanged for the right to
                        receive cash, securities or other property; or (ii) any
                        exchange of all of the Common Stock of the Company for
                        cash, securities or other property pursuant to a share
                        exchange transaction.

                   (b)  An "Acquisition Event" shall mean the consummation of a
                        merger, consolidation, reorganization, recapitalization
                        or share exchange involving the Company or a sale or
                        other disposition of all or substantially all of the
                        assets of the Company (a "Business Combination"),
                        unless, immediately following such Business Combination,
                        all or substantially all of the individuals and entities
                        who were the beneficial owners of the then-outstanding
                        shares of common stock of the Company (the "Outstanding
                        Company Common Stock") and the then-outstanding
                        securities of the Company entitled to vote generally in
                        the election of directors (the "Outstanding Company
                        Voting Securities") immediately prior to such Business
                        Combination beneficially own, directly or indirectly,
                        more than 50% of the then-outstanding shares of common
                        stock and the combined voting power of the
                        then-outstanding securities entitled to vote generally
                        in the election of directors, respectively, of the
                        resulting or acquiring corporation in such Business
                        Combination (which shall include, without limitation, a
                        corporation which as a result of such transaction owns
                        the Company or substantially all of the Company's assets
                        either directly or through one or more subsidiaries)
                        (such resulting or acquiring corporation is referred to
                        herein as the "Acquiring Corporation") in substantially
                        the same proportions as their ownership of the
                        Outstanding Company Common Stock and Outstanding Company
                        Voting Securities, respectively, immediately prior to
                        such Business Combination.

             (2) EFFECT ON OPTIONS.

                   (a)  REORGANIZATION EVENT. Upon the occurrence of a
                        Reorganization Event that is not also an Acquisition
                        Event, or the execution by the Company of any agreement
                        with respect to a Reorganization Event that will not
                        also result in an Acquisition Event, the Board shall
                        provide that all outstanding Options shall be assumed,
                        or equivalent options shall be substituted, by the
                        acquiring or

                                      -4-

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                        succeeding corporation (or an affiliate thereof). For
                        purposes hereof, an Option shall be considered to be
                        assumed if, following consummation of the Reorganization
                        Event, the Option confers the right to purchase, for
                        each share of Common Stock subject to the Option
                        immediately prior to the consummation of the
                        Reorganization Event, the consideration (whether cash,
                        securities or other property) received as a result of
                        the Reorganization Event by holders of Common Stock for
                        each share of Common Stock held immediately prior to the
                        consummation of the Reorganization Event (and if holders
                        were offered a choice of consideration, the type of
                        consideration chosen by the holders of a majority of the
                        outstanding shares of Common Stock); provided, however,
                        that if the consideration received as a result of the
                        Reorganization Event is not solely common stock of the
                        acquiring or succeeding corporation (or an affiliate
                        thereof), the Company may, with the consent of the
                        acquiring or succeeding corporation, provide for the
                        consideration to be received upon the exercise of
                        Options to consist solely of common stock of the
                        acquiring or succeeding corporation (or an affiliate
                        thereof) equivalent in fair market value to the per
                        share consideration received by holders of outstanding
                        shares of Common Stock as a result of the Reorganization
                        Event.

                             Notwithstanding the foregoing, if the acquiring or
                        succeeding corporation (or an affiliate thereof) does
                        not agree to assume, or substitute for, such Options,
                        then the Board shall, upon written notice to the
                        Participants, provide that all then unexercised Options
                        will become exercisable in full as of a specified time
                        prior to the Reorganization Event and will terminate
                        immediately prior to the consummation of such
                        Reorganization Event, except to the extent exercised by
                        the Participants before the consummation of such
                        Reorganization Event; provided, however, in the event of
                        a Reorganization Event under the terms of which holders
                        of Common Stock will receive upon consummation thereof a
                        cash payment for each share of Common Stock surrendered
                        pursuant to such Reorganization Event (the "Acquisition
                        Price"), then the Board may instead provide that all
                        outstanding Options shall terminate upon consummation of
                        such Reorganization Event and that each Participant
                        shall receive, in exchange therefor, a cash payment
                        equal to the amount (if any) by which (A) the
                        Acquisition Price multiplied by the number of shares of
                        Common Stock subject to such outstanding Options
                        (whether or not then exercisable), exceeds (B) the
                        aggregate exercise price of such Options.

                   (b)  ACQUISITION EVENT. In the event of the consummation of
                        an Acquisition Event (regardless of whether such
                        Acquisition Event also constitutes a Reorganization
                        Event), all then-unexercised

                                       -5-

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                        Options will become exercisable in full as of time
                        specified by the Board prior to the consummation of the
                        Acquisition Event and will terminate immediately prior
                        to the consummation of such Acquisition Event, except to
                        the extent exercised by the Participants before the
                        consummation of such Acquisition Event; provided,
                        however, in the event of an Acquisition Event under the
                        terms of which holders of Common Stock will receive upon
                        consummation thereof a cash payment for each share of
                        Common Stock surrendered pursuant to such Acquisition
                        Event (the "Acquisition Price"), then the Board may
                        instead provide that all outstanding Options shall
                        terminate upon consummation of such Acquisition Event
                        and that each Participant shall receive, in exchange
                        therefor, a cash payment equal to the amount (if any) by
                        which (A) the Acquisition Price multiplied by the number
                        of shares of Common Stock subject to such outstanding
                        Options (whether or not then exercisable), exceeds (B)
                        the aggregate exercise price of such Options.

7.       GENERAL PROVISIONS APPLICABLE TO OPTIONS

         (a) TRANSFERABILITY OF OPTIONS. Except as the Board may otherwise
determine or provide in an Option, Options shall not be sold, assigned,
transferred, pledged or otherwise encumbered by the person to whom they are
granted, either voluntarily or by operation of law, except by will or the laws
of descent and distribution, and, during the life of the Participant, shall be
exercisable only by the Participant. References to a Participant, to the extent
relevant in the context, shall include references to authorized transferees.

         (b) DOCUMENTATION. Each Option shall be evidenced by a written
instrument in such form as the Board shall determine. Each Option may contain
terms and conditions in addition to those set forth in the Plan.

         (c) BOARD DISCRETION. Except as otherwise provided by the Plan, each
Option may be made alone or in addition or in relation to any other Option. The
terms of each Option grant need not be identical, and the Board need not treat
Participants uniformly.

         (d) TERMINATION OF STATUS. The Board shall determine the effect on an
Option of the disability, death, retirement, authorized leave of absence or
other change in the employment or other status of a Participant and the extent
to which, and the period during which, the Participant, the Participant's legal
representative, conservator, guardian or Designated Beneficiary (as defined
below) may exercise rights under the Option. If the Participant has died, the
beneficiary designated, in a manner determined by the Board, by a Participant to
receive amounts due or exercise rights of the Participant in the event of the
Participant's death is referred to as the "Designated Beneficiary."

         (e) WITHHOLDING. Each Participant shall pay to the Company, or make
provision satisfactory to the Board for payment of, any taxes required by law to
be withheld in connection

                                       -6-

<PAGE>

with Options to such Participant no later than the date of the event creating
the tax liability. Except as the Board may otherwise provide in an Option,
Participants may, to the extent then permitted under applicable law, satisfy
such tax obligations in whole or in part by delivery of shares of Common Stock,
including shares retained from the Option creating the tax obligation, valued at
their Fair Market Value; provided, however, that the total tax withholding where
stock is being used to satisfy such tax obligations cannot exceed the Company's
minimum statutory withholding obligations (based on minimum statutory
withholding rates for federal and state tax purposes, including payroll taxes,
that are applicable to such supplemental taxable income). The Company may, to
the extent permitted by law, deduct any such tax obligations from any payment of
any kind otherwise due to a Participant.

         (f) AMENDMENT OF OPTION. The Board may amend, modify or terminate any
outstanding Option, including but not limited to, substituting therefor another
Option of the same or a different type, and changing the date of exercise or
realization provided that the Participant's consent to such action shall be
required unless the Board determines that the action, taking into account any
related action, would not materially and adversely affect the Participant.

         (g) CONDITIONS ON DELIVERY OF STOCK. The Company will not be obligated
to deliver any shares of Common Stock pursuant to the Plan or to remove
restrictions from shares previously delivered under the Plan until (i) all
conditions of the Option have been met or removed to the satisfaction of the
Company, (ii) in the opinion of the Company's counsel, all other legal matters
in connection with the issuance and delivery of such shares have been satisfied,
including any applicable securities laws and any applicable stock exchange or
stock market rules and regulations, and (iii) the Participant has executed and
delivered to the Company such representations or agreements as the Company may
consider appropriate to satisfy the requirements of any applicable laws, rules
or regulations.

         (h) ACCELERATION. The Board may at any time provide that any Options
shall become immediately exercisable in full or in part.

8.       MISCELLANEOUS

         (a) NO RIGHT TO EMPLOYMENT OR OTHER STATUS. No person shall have any
claim or right to be granted an Option, and the grant of an Option shall not be
construed as giving a Participant the right to continued employment or any other
relationship with the Company. The Company expressly reserves the right at any
time to dismiss or otherwise terminate its relationship with a Participant free
from any liability or claim under the Plan, except as expressly provided in the
applicable Option.

         (b) NO RIGHTS AS STOCKHOLDER. Subject to the provisions of the
applicable Option, no Participant or Designated Beneficiary shall have any
rights as a stockholder with respect to any shares of Common Stock to be
distributed with respect to an Option until becoming the record holder of such
shares. Notwithstanding the foregoing, in the event the Company effects a split
of the Common Stock by means of a stock dividend and the exercise price of and
the number of shares subject to such Option are adjusted as of the date of the
distribution of the dividend (rather than as of the record date for such
dividend), then an optionee who exercises an Option between

                                      -7-

<PAGE>

the record date and the distribution date for such stock dividend shall be
entitled to receive, on the distribution date, the stock dividend with respect
to the shares of Common Stock acquired upon such Option exercise,
notwithstanding the fact that such shares were not outstanding as of the close
of business on the record date for such stock dividend.

         (c) EFFECTIVE DATE AND TERM OF PLAN. The Plan shall become effective on
the date on which it is adopted by the Board. No Options shall be granted under
the Plan after the completion of ten years from the date on which the Plan was
adopted by the Board but Options previously granted may extend beyond that date.

         (d) AMENDMENT OF PLAN. The Board may amend, suspend or terminate the
Plan or any portion thereof at any time.

         (e) GOVERNING LAW. The provisions of the Plan and all Options granted
hereunder shall be governed by and interpreted in accordance with the laws of
the Commonwealth of Massachusetts, without regard to any applicable conflicts of
law.

         (f) FOREIGN NATIONALS. Options may be granted to participants who are
foreign nationals or employed outside the United States on such terms and
conditions different from those specified in the Plan as the Board considers
necessary or advisable to achieve the purposes of the Plan.

                                          Approved by the Board of Directors
                                          on November 30, 2000

                                       -8-<PAGE>

                                                                  EXHIBIT 10.5.6

                    FIRST AMENDMENT TO STANDARD OFFICE LEASE
                       (600 CORPORATE POINTE, SUITE 1200)

      THIS FIRST AMENDMENT TO STANDARD OFFICE LEASE ("FIRST AMENDMENT") is made
and entered into as of the 1st day of April, 2000, by and between ARDEN REALTY
FINANCE IV, L.L.C., a Delaware limited liability company ("LANDLORD") and
INVESTMENT TECHNOLOGY GROUP, INC., a Delaware corporation ("TENANT").

                                R E C I T A L S :
                                - - - - - - - -

      A.    Landlord and Tenant entered into that certain Standard Office Lease,
dated as of February 29, 2000 (the "LEASE"), whereby Landlord leased to Tenant
and Tenant leased from Landlord certain office space consisting of 23,520
rentable square feet and commonly known as Suite 1200, located in that certain
building at 600 Corporate Pointe, Culver City, California (the "BUILDING").

      B.    By this First Amendment, Landlord and Tenant desire to modify the
Lease as provided herein.

      C.    Unless otherwise defined herein, capitalized terms as used herein
shall have the same meanings as given thereto in the Lease.

      NOW, THEREFORE, in consideration of the foregoing recitals and the mutual
covenants contained herein, and for other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto
hereby agree as follows:

                               A G R E E M E N T :
                               - - - - - - - - -

      1.    COMMENCEMENT DATE. Notwithstanding anything to the contrary in the
Lease, Landlord and Tenant hereby agree that the Commencement Date shall be
March 23, 2000 (not March 15, 2000, as set forth in Article 1.A of the Lease).
Landlord and Tenant agree that Tenant has already paid Basic Rental for the
period from March 15, 2000 until March 23, 2000 in the amount of Thirteen
Thousand Six Hundred Fifty-Six and No/100 Dollars ($13,656.00). Accordingly,
Tenant shall be entitled to an increase in the Improvement Allowance in the
amount of Thirteen Thousand Six Hundred Fifty-Six and No/100 Dollars
($13,656.00), as set forth in Section 3, below.

      2.    BASIC RENTAL. Article 1.C of the Lease is hereby deleted and the
following shall be inserted in its place:

      "C.  Basic Rental:

<TABLE>
<CAPTION>

                                                           MONTHLY BASIC
                         ANNUAL BASIC    MONTHLY BASIC   RENTAL PER RENTABLE
           LEASE MONTH      RENTAL           RENTAL          SQUARE FOOT
           -----------   ------------    -------------   -------------------
<S>                       <C>              <C>                 <C>
              1-3*        $635,040.00      $52,920.00          $2.25

              4-30        $578,592.00      $48,216.00          $2.05

              31-69       $606,816.00      $50,568.00          $2.15
</TABLE>

            *Including the partial month at the beginning of the Term"

      3.    IMPROVEMENT ALLOWANCE. Notwithstanding anything to the contrary in
the Lease, the Improvement Allowance shall be Four Hundred Seventy-Nine Thousand
Nine Hundred Eighty-Two and No/100 Dollars ($479,982.00) (I.E., $21.00 for each
of the 22,206 usable square

                                      -1-
<PAGE>

feet of the Premises plus $13,656.00 as set forth in Section 1, above). To
reimburse Tenant for initial planning costs, Landlord shall pay Tenant a portion
of the Improvement Allowance in the amount of Three Hundred Thirty-Three
Thousand Ninety and No/100 Dollars ($333,090.00) (I.E., $15.00 per usable square
foot of the Premises) (the "INITIAL ALLOWANCE AMOUNT") within ten (10) business
days following the mutual execution and delivery of this First Amendment. The
balance of the Improvement Allowance in the amount of One Hundred Forty-Six
Thousand Eight Hundred Ninety-Two and No/100 Dollars ($146,892.00) shall be
disbursed by Landlord in accordance with the terms of Section 2.2 of the Tenant
Work Letter attached to the Lease as Exhibit "D" (the "TENANT WORK LETTER"),
provided that Landlord shall have no obligation to make any disbursements of the
Improvement Allowance until Tenant's requests for payment exceed in the
aggregate Three Hundred Thirty-Three Thousand Ninety and No/100 Dollars
($333,090.00) (I.E., the Initial Allowance Amount). Tenant agrees that the
Initial Allowance Amount shall be spent by Tenant only for Improvement Allowance
Items (as set forth in Section 2.2 of the Tenant Work Letter). In no event shall
Landlord be obligated to make disbursements in a total amount which exceeds the
amount of the Improvement Allowance, as set forth above, and in no event shall
Tenant be entitled to any credit for any unused portion of the Improvement
Allowance (including the Initial Allowance Amount plus the remainder) not spent
by Tenant for Improvement Allowance Items by the date which is the last day of
the calendar month which is thirty-six (36) full calendar months after the
Commencement Date. Tenant acknowledges that the Initial Allowance Amount is
being disbursed by Landlord prior to the disbursement of the remainder of the
Improvement Allowance and in the event the Lease is terminated for any reason
(whether because of a Tenant default or otherwise) prior to the disbursement of
the remainder of the Improvement Allowance, Tenant shall be required to repay in
full to Landlord upon demand by Landlord any portion of the Initial Allowance
Amount which has not yet been spent on Improvement Allowance Items.

      4.    TEMPORARY SIGNAGE. Tenant shall pay Arden Two Hundred Fifty Thousand
and No/100 Dollars ($250,000.00) no later than June 30, 2000 for the right to
have the "Temporary Sign," as that term is defined below, from April 1, 2000
until June 30, 2000, which payment shall be non-refundable and not credited
against any rent due under the Lease. Tenant, at Tenant's sole cost, shall have
the right to one sign displaying Tenant's name (the "TEMPORARY SIGN") to be
placed on the Building in an area to be mutually agreed upon by Landlord and
Tenant. Tenant's Temporary Sign shall be subject to Landlord's approval as to
size, design, location, graphics, materials, colors and similar specifications
and shall be consistent with the exterior design, materials and appearance of
the Building and the Building's signage program and shall be further subject to
all applicable local government laws, rules, regulations, codes and other
approvals. Tenant's Temporary Sign shall be personal to the Tenant originally
named in this First Amendment and may not be assigned to any assignee or
sublessee, or to any other person or entity. The cost incurred in connection
with the initial purchase and installation of the Temporary Sign and the cost to
maintain the Temporary Sign shall be paid by Tenant. Upon the expiration of the
term of Tenant's lease of the Temporary Sign, or earlier termination of the
Lease, or in the event the conditions precedent to the grant of Tenant's
Temporary Sign are no longer satisfied, Landlord shall have the right to remove
the Temporary Sign and Tenant shall be responsible for any and all costs
associated with the removal of the Temporary Sign, including, but not limited
to, the cost to repair and restore the Building to its original condition.

      5.    NO FURTHER MODIFICATION. Except as set forth in this First
Amendment, all of the terms and provisions of the Lease shall remain unmodified
and in full force and effect. Effective as of the date hereof, all references to
the "Lease" shall refer to the Lease as amended by this First Amendment.

      [SIGNATURES ON FOLLOWING PAGE]

                                      -2-
<PAGE>

      IN WITNESS WHEREOF, this First Amendment has been executed as of the day
and year first above written.

                                    "Landlord":

                                    ARDEN REALTY FINANCE IV, L.L.C.,
                                    a Delaware limited liability company

                                    By:
                                         -------------------------------------
                                         Victor J. Coleman
                                         Its:  President and COO

                                    By:
                                         -------------------------------------
                                         Its:
                                             ---------------------------------

                                    "Tenant":

                                    INVESTMENT TECHNOLOGY GROUP, INC.,
                                    a Delaware corporation

                                    By:
                                          ------------------------------------
                                    Print Name:
                                               -------------------------------
                                          Its:
                                              --------------------------------

                                    By:
                                          ------------------------------------
                                    Print Name:
                                               -------------------------------
                                          Its:
                                              --------------------------------

                                      -3-

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