Document:

EX-10.13

Exhibit 10.13

AMENDED AND RESTATED EMPLOYMENT AGREEMENT

     This Amended Employment Agreement (the “Agreement”) is entered into effective as
of December 31, 2008 (the “Amended Effective Date”), by and between Eugene A. Hall, an
individual (“Executive”) and Gartner, Inc., a Delaware corporation (the
“Company”) and amends and restates the employment agreement entered into on February
15, 2007, effective as of January 1, 2007 (the “Original Effective Date”), by the Company and
Executive.

     1. Employment. Executive will serve as Chief Executive Officer of the Company
for the Employment Term specified in Section 3 below. Executive will report solely to
the Board of Directors (the “Board”) and will render such services consistent with
the foregoing role as the Board may from time to time direct. Executive’s office will be
located at the executive offices of the Company in Stamford, Connecticut. Executive may (i)
serve on corporate, civic or charitable boards or committees and (ii) deliver lectures,
fulfill speaking engagements or teach at educational institutions, to the extent that such
activities are (x) consistent with the Company’s policies (as applicable) or (y) disclosed to
the Board and the Board determines in good faith that such activities do not interfere with
the performance of Executive’s responsibilities hereunder.

     2. Board of Directors. The Executive is currently a member of the Board, and
during the Employment Term, the Company will, in good faith, include Executive on the
Company’s slate of nominees to be elected to the Board at appropriate meetings of
stockholders of the Company. Upon termination of the Employment Term for any reason,
Executive will promptly resign as a director of the Company if the Board so requests.

     3. Term. The employment of Executive pursuant to this Agreement will continue
through December 31, 2011 (the “Employment Term”), unless extended or earlier
terminated as provided in this Agreement. The Employment Term automatically will be extended
for additional one-year periods commencing on January 1, 2012 and continuing each year
thereafter, unless either Executive or the Company gives the other written notice, in
accordance with Section 14(a) and at least sixty (60) days prior to the then
scheduled expiration of the Employment Term, of such party’s intention not to extend the
Employment Term. Upon termination of the Employment Term for any reason, Executive will
promptly resign from all positions he holds with the Company if the Board so requests.

     4. Salary. As compensation for the services rendered by Executive under this
Agreement, the Company will pay to Executive an annual base salary (“Base Salary”)
equal to $724,065, payable to Executive on a semi-monthly basis in accordance with the
Company’s payroll practices as in effect from time to time during the Employment Term. The
Base Salary will be subject to adjustment by the Board or the Compensation Committee of the
Board (the “Committee”), in the sole discretion of the Board or such Committee, on an
annual basis; provided, however, that Executive’s Base Salary may not be decreased other than
pursuant to a reduction consistent with a general reduction of pay across the executive staff
as a group, as an economic or strategic measure due to poor financial performance by the
Company.

 

     5. Bonus. In addition to Base Salary, Executive will be entitled to participate in the
Company’s executive bonus program. Executive’s annual target bonus (the “Target Bonus”)
will be 100% of Base Salary, and will be payable based on achievement of specified Company and
individual objectives. The actual bonus paid may be higher or lower than the Target Bonus for
over-or under-achievement of Company and individual objectives, as determined by the Committee;
provided, however, that the maximum actual bonus will not exceed 200% of Base Salary. Bonus amounts
will be subject to annual adjustment by the Board or the Committee, in the sole discretion of the
Board or the Committee; provided, however, that Executive’s Target Bonus may not be decreased
without Executive’s consent other than pursuant to a reduction consistent with a general reduction
of pay across the executive staff as a group, as an economic or strategic measure due to poor
financial performance of the Company. To receive a bonus, Executive must be an employee at the time
bonuses are paid to executives.

     6. Executive Benefits.

          (a) Equity Grants. On February 15, 2007, and no later than ten (10) days following
the first market trading day of the first open trading window for Company executives under the
Company’s insider trading policy on or after January 1 each year thereafter during the Employment
Term, Executive will be granted equity-based incentive awards settled in Common Stock of the
Company (collectively, the “Incentive Awards”), provided that Executive must be an
employee at the time Incentive Awards are scheduled to be granted. The Incentive Awards granted in
2007 will have an aggregate value of $5,594,050 on the date of grant, as determined by (a) using
the Black-Scholes-Merton valuation method for stock appreciation rights and the fair market value
of the Company’s Common Stock for restricted stock units, or such other valuation method as the
Committee may use to value equity-based incentive awards, and (b) assuming that the number of the
restricted stock units initially granted in 2007 will not be adjusted during such year, as
discussed in clause (i) below. The Incentive Awards granted in 2008 and later years will have an
aggregate value on the date of grant (using the methods described in the preceding sentence) that
is no less than the result of $7,000,000 minus the sum of the Base Salary and Target Bonus for the
year of grant. Executive’s entitlement to be granted the Incentive Awards for any given year under
this Agreement shall accrue as of January 1 of such year. Except as otherwise provided herein, the
Incentive Awards will be granted on terms consistent with the Company’s 2003 Long Term Incentive
Plan (the “Plan”). Each year’s Incentive Awards will be divided among:

               (i) Restricted Stock Units. Each year during the Employment Term, all or a portion of
the aggregate value of the Incentive Awards may, as determined by the Committee, be in the form of
restricted stock units, with a par value purchase price. During each year of the Employment Term,
the number of restricted stock units initially granted to Executive will be based upon an
assumption that specified Company objectives will be achieved during such year. The restricted
stock units granted to Executive each year may be adjusted so as to be higher or lower than the
number of restricted stock units initially granted in such year by reason of over-or
under-achievement during such year of such specified Company objectives, as determined by the
Committee. Upon the vesting of a restricted stock unit, and in the sole discretion of the Company,
the Company may pay earned restricted stock units in cash, shares of Common Stock of the Company,
or in a combination thereof. Except as otherwise set forth in

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this Agreement, if Executive’s employment with the Company terminates for any reason, any portion
of the restricted stock units still subject to restrictions will be forfeited to the Company.

               (ii) Stock Appreciation Rights. Each year during the Employment Term, all or a portion
of the value of the Incentive Awards may, as determined by the Committee, be in the form of stock
appreciation rights, which upon exercise will be settled in shares of Common Stock of the Company.
Executive will have the right to exercise such stock appreciation right upon its vesting, and will
receive the excess, if any, of the value of a share of Common Stock of the Company on the date of
exercise over the value of such share on the date of grant.

     The 2007 Incentive Awards will be divided such that 70% of the aggregate fair value of the
Incentive Awards will be in the form of restricted stock units (the number of which will be subject
to increase or decrease based upon the over-or under-achievement of specified Company objectives,
as discussed in clause (i) above), and 30% of the Incentive Awards will be in the form of stock
appreciation rights. The 2007 Incentive Awards will be scheduled to vest in equal annual
installments on the first four (4) annual anniversaries of the date of grant, and all other
Incentive Awards granted pursuant to this Agreement will be scheduled to vest in four equal
installments on January 1 of each year following the date of grant, subject in each case to
Executive’s continued employment with the Company through the applicable date and subject to
achievement of any performance goals applicable to such Incentive Awards, except as provided in
Section 7. Notwithstanding the preceding sentence, if a Change in Control occurs prior to
the termination of Executive’s employment and prior to the expiration of the Incentive Awards, then
the Incentive Awards will vest in full, all performance goals or other vesting criteria will be
deemed achieved at target levels and, with respect to stock appreciation rights, be exercisable as
to all of the covered shares, including shares as to which the stock appreciation rights would not
otherwise be exercisable, and subsequently will expire in accordance with their terms.

          (b) Other Employee and Executive Benefits. Executive will be entitled to receive all
benefits provided to senior executives, executives and employees of the Company generally from
time to time, including medical, dental, life insurance and long-term disability, and the
executive split-dollar life insurance, executive disability plan, and all other benefits under the
Company’s Executive Benefits program, in each case so long as and to the extent the same exist;
provided, that with respect to each such plan Executive is otherwise eligible and insurable in
accordance with the terms of such plans. Notwithstanding the preceding sentence, Executive’s right
to receive severance payments and benefits will be only as provided in Section 7 hereof.
Furthermore, the Company will provide Executive with an automobile and driver for Executive’s
ground transportation needs during the Employment Term.

          (c) Vacation, Sick Leave, Holidays and Sabbatical. Executive will be entitled to paid
time off (“PTO”), sick leave, holidays and sabbatical in accordance with the policies of the
Company as they exist from time to time. Executive understands that under the current policy he is
entitled to thirty-five (35) PTO days per calendar year. PTO not used during any calendar year
will roll over to the following year only to the extent provided under the Company’s PTO policies
as they exist from time to time.

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     7. Severance Benefits.

          (a) At Will Employment. Executive’s employment will be “at will.” Either the Company
or Executive may terminate this agreement and Executive’s employment at any time, with or without
Business Reasons, in its or his sole discretion, upon sixty (60) days’ prior written notice of
termination.

          (b) Involuntary Termination. If at any time during the term of this Agreement (other
than following a Change in Control to which Section 7(c) applies) the Company terminates
the employment of Executive involuntarily and without Business Reasons or a Constructive
Termination occurs, or if the Company elects not to renew this Agreement upon the expiration of
the Employment Term and Executive within ninety (90) days following the expiration of the
Employment Term terminates his employment, then, subject to Executive signing and not revoking a
general release of claims against the Company and its successors substantially in the form
attached hereto as Exhibit A within the period required by the release and in no event
later than sixty (60) days following the Termination Date, inclusive of any revocation period set
forth in the release, Executive will be entitled to receive the following:

               (i) Base Salary and PTO accrued through the Termination Date plus continued Base Salary for a
period of thirty-six (36) months following the Termination Date. In accordance with Section
7(i) below, such payments will commence on the first regular Company pay day at least six (6)
months after the Termination Date or, if later, at least six (6) months after the date of
Executive’s Separation from Service. This first payment will be a lump sum representing the
continuation of Executive’s Base Salary for the period commencing on the Termination Date and
concluding on such payment date. Thereafter, the remaining payments of Base Salary will be payable
in accordance with the Company’s regular payroll schedule as in effect from time to time.

               (ii) A lump sum cash payment with respect to the accrued but un-granted Incentive Awards
pursuant to Section 6(a) above determined by multiplying the percentage of such un-granted
Incentive Awards that would have vested pursuant to Section 7(b)(iv) below by no less than
the result of $7,000,000 minus the sum of the Base Salary and Target Bonus for the year in which
the Termination Date occurs. For purposes of illustration, if the accrued but un-granted Incentive
Awards would have vested over a four (4) year vesting schedule, the percentage described in the
preceding sentence will be seventy-five percent (75%). In accordance with Section 7(i)
below, this payment will be made on the first regular Company pay day at least six (6) months
after the Termination Date or, if later, at least six (6) months after the date of Executive’s
Separation from Service.

               (iii) 300% of the average of Executive’s earned annual bonuses for the three (3) fiscal years
immediately preceding the year in which the Termination Date occurs, which, in accordance with
Section 7(i) below, will be payable in a lump sum as soon as practicable following but in
no event later than thirty (30) days later than the six (6) month period commencing on the
Termination Date, or, if later, following the six (6) month period commencing on the date of
Executive’s Separation from Service, plus any earned but unpaid bonus from the prior fiscal year,
which will be paid at the same time as bonuses for such fiscal year are paid to the other Company
executives.

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               (iv) Thirty-six (36) months’ continued vesting under all Incentive Awards and any other
outstanding stock options and other equity arrangements subject to vesting and held by Executive
other than the restricted stock award granted to Executive on August 16, 2004 pursuant to which
Executive received 500,000 shares of restricted stock subject to certain performance-based criteria
(the “Restricted Stock Award”) (and in this regard, all such stock appreciation rights and other
exercisable rights held by Executive will remain exercisable for thirty (30) days following the
last day of the thirty-six (36) month continued vesting period, subject to the maximum term of the
award). Notwithstanding the foregoing, with respect to each performance-based restricted stock unit
award or other equity compensation award subject to achievement of performance-based criteria (each
a “Performance-Based Equity Award”) other than the Restricted Stock Award, Executive will be
entitled to thirty-six (36) months’ continued vesting only if and to the extent that the
performance-based criteria applicable to the Performance-Based Equity Award is achieved during the
award’s performance period, as determined by the Compensation Committee in accordance with the
terms and conditions of the 2003 Long-Term Incentive Plan (or such other Company stock plan under
which the award was granted) and the award agreement entered into by and between the Company and
Executive. For purposes of clarity, the thirty-six (36) months’ continued vesting to which
Executive is entitled will be measured from the Termination Date and not from the date that
achievement of the applicable performance-based criteria is determined. Notwithstanding anything to
the contrary herein or in any award agreement evidencing the Incentive Awards and any other
outstanding stock options or other equity arrangements, to the extent such awards are considered
“deferred compensation” within the meaning of Section 409A of the Internal Revenue Code of 1986, as
amended (the “Code”), and the final regulations and any guidance promulgated thereunder (“Section
409A”) and in accordance with Section 7(i) below, the awards otherwise payable during the period
beginning on the Termination Date and ending on the date that is six (6) months following the
Termination Date or, if later, six (6) months following the date of Executive’s Separation from
Service, instead will be paid on the date six (6) months and one (1) day following the later of the
Termination Date or the date of Executive’s Separation from Service. Thereafter, each such award
shall be paid in accordance with the vesting schedule applicable to such award.

               (v) reimbursement for premiums incurred to continue group health benefits (or, at the
Company’s election, to obtain substantially similar health benefits through a third party carrier)
for thirty-six (36) months for Executive, his spouse and any children, provided the Executive
makes the appropriate health continuation election pursuant to the Consolidated Omnibus Budget
Reconciliation Act of 1985 (“COBRA”). The Company will make payments under this clause (v) on a
monthly basis.

               (vi) no other compensation, severance or other benefits, except only that this provision will
not limit any benefits otherwise available to Executive under Section 7(c)(ii) in the case
of a Change in Control. Notwithstanding the foregoing, if Executive violates in a material respect
the provisions set forth in Section 12, Executive no longer will be entitled to receive
any severance payments and benefits and Executive’s outstanding Incentive Awards and other stock
options and equity arrangements will expire immediately.

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          (c) Change in Control.

               (i) Benefits. If during the term of this Agreement a “Change in Control” occurs, then
Executive will be entitled to receive the following: (A) Base Salary and PTO accrued though the
date of the Change in Control plus an amount equal to three (3) years of Executive’s Base Salary as
then in effect, payable immediately upon the Change in Control, (B) an amount equal to three (3)
times Executive’s Target Bonus for the fiscal year in which the Change in Control occurs (as well
as any earned but unpaid bonus from the prior fiscal year, such bonus not to be multiplied by three
(3)), all payable immediately upon the Change in Control, and (C) (a) for at least three (3) years
following the date of the Change in Control (even if Executive ceases employment), continuation of
group health benefits at the Company’s cost pursuant to the Company’s standard programs as in
effect from time to time (or at the Company’s election substantially similar health benefits as in
effect at the Termination Date (if applicable), through a third party carrier) for Executive, his
spouse and any children, and (b) thereafter, to the extent COBRA will be applicable, continuation
of health benefits for such persons at Executive’s cost, for a period of eighteen (18) months or
such longer period as may be applicable under the Company’s policies then in effect, provided the
Executive makes the appropriate COBRA election and payments, and (D) no other compensation,
severance or other benefits. Anything to the contrary herein notwithstanding, in the event of a
Change in Control, the Executive’s Incentive Awards will automatically vest as provided in
Section 6(a). Additionally, any Incentive Awards accrued but un-granted pursuant to
Section 6(a) will be granted to Executive prior to the Change in Control. Further, payments
for continuing group health benefits made by the Company pursuant to Section 7(c)(i)(C)
above will be made directly by the Company to the applicable insurer and/or administrator when
premiums for such coverage are due in accordance with the terms and conditions of the applicable
insurance policy or administrative services agreement (subject to the grace period permitted under
Section 1.409 A-3(d) of the Treasury Regulations under Section 409A and provided that under no
circumstances will Executive be permitted, directly or indirectly, to designate the taxable year in
which payments for continuing coverage are made by the Company).

               (ii) Additional Payments by the Company.

               (A) If any payment or benefit Executive would receive pursuant to Section
7(c)(i) or otherwise (collectively, the “Payment”) would (x) constitute a
“parachute payment” within the meaning of Section 280G of the Code, and (y) be subject to
the excise tax imposed by Section 4999 of the Code or any interest or penalties payable
with respect to such excise tax (such excise tax, together with any such interest and
penalties, are hereinafter collectively referred to as the “Excise Tax”), then
Executive will be entitled to receive from the Company an additional payment (the
“Gross-Up Payment,” and any iterative payments pursuant to this paragraph also will
be “Gross-Up Payments”) in an amount that will fund the payment by Executive of any
Excise Tax on the Payment, as well as all income and employment taxes on the Gross-Up
Payment, any Excise Tax imposed on the Gross-Up Payment and any interest or penalties
imposed with respect to income and employment taxes imposed on the Gross-Up Payment.

               (B) Subject to the provisions of clause F below, all determinations required to be
made under this Section 7(c)(ii), including whether an

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Excise Tax is payable by Executive and the amount of such Excise Tax and whether a Gross-Up Payment
is required and the amount of such Gross-Up Payment, will be made by the Company’s independent
accountants prior to the Change in Control (the “Accounting Firm”). The Company will direct
the Accounting Firm to submit its determination and detailed supporting calculations to both the
Company and Executive within fifteen (15) calendar days after the date of the Change in Control or
the date of Executive’s termination of employment, if applicable, and any other such time or times
as may be requested by the Company or Executive. If the Accounting Firm determines that any Excise
Tax is payable by Executive, the Company will pay the required Gross-Up Payment to Executive within
five (5) business days after receipt of such determination and calculations. If the Accounting Firm
determines that no Excise Tax is payable by Executive, it will, at the same time as it makes such
determination, furnish Executive with an opinion that he has substantial authority not to report
any Excise Tax on his federal, state, local income or other tax return. Any determination by the
Accounting Firm as to the amount of the Gross-Up Payment will be binding upon the Company and
Executive. As a result of the uncertainty in the application of Section 4999 of the Code (or any
successor provision thereto) and the possibility of similar uncertainty regarding applicable state
or local tax law at the time of any 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 or fails to pursue its remedies pursuant to clause F below and
Executive thereafter is required to make a payment of any Excise Tax, the Company or Executive may
direct the Accounting Firm to determine the amount of the Underpayment that has occurred and to
submit its determination and detailed supporting calculations to both the Company and Executive as
promptly as possible. Any such Underpayment will be promptly paid by the Company to Executive
within twenty (20) days after receipt of such determination and calculations.

               (C) The Company and Executive will each provide the Accounting Firm access to and copies of
any books, records and documents in the possession of the Company or Executive, as the case may
be, reasonably requested by the Accounting Firm, and otherwise cooperate with the Accounting Firm
in connection with the preparation and issuance of the determination contemplated by clause B
above.

               (D) The federal, state and local income or other tax returns filed by Executive will be
prepared and filed on a consistent basis with the determination of the Accounting Firm with
respect to the Excise Tax payable by Executive. Executive will make proper payment of the amount
of any Excise Tax, and at the request of the Company, provide to the Company true and correct
copies (with any amendments) of his federal income tax return as filed with the Internal Revenue
Service and corresponding state and local tax returns, if relevant, as filed with the applicable
taxing authority, and such other documents reasonably requested by the Company, evidencing such
payment. If prior to the filing of Executive’s federal income tax return, or corresponding state
or local tax return, if relevant, the Accounting Firm determines that the amount of the Gross-Up
Payment should be reduced, Executive will within twenty (20) days thereafter pay to the Company
the amount of such reduction.

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               (E) The fees and expenses of the Accounting Firm for its
services in connection with the determinations and calculations contemplated by clauses
B and D above will be borne by the Company. If such fees and expenses are initially
advanced by Executive, the Company will reimburse Executive the full amount of such
fees and expenses within twenty (20) days after receipt from Executive of a statement
therefore and reasonable evidence of his payment thereof.

               (F) Executive will notify the Company in writing of any claim
by the Internal Revenue Service that, if successful, would require the payment by the
Company of a Gross-Up Payment. Such notification will be given as promptly as
practicable but no later than thirty calendar days after Executive actually receives notice
of such claim and Executive will further apprise the Company of the nature of such claim
and the date on which such claim is requested to be paid (in each case, to the extent
known by Executive). Executive will not pay such claim prior to the earlier of (i) the
expiration of the 30-calendar-day period following the date on which he gives such notice
to the Company and (ii) the date that any payment of amount 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 will:

               (1) provide the Company with any written records or documents in his possession
relating to such claim reasonably requested by the Company;

               (2) take such action in connection with contesting such claim as the Company will
reasonably request in writing from time to time, including without limitation accepting
legal representation with respect to such claim by an attorney competent in respect of the
subject matter and approved by the Company, which approval will not be unreasonably
withheld;

               (3) cooperate with the Company in good faith in order effectively to contest such
claim; and

               (4) permit the Company to participate in any proceedings relating to such claim;

provided, however, that the Company will bear and pay directly all costs and expenses (including
interest and penalties) incurred in connection with such contest and will indemnify and hold
harmless Executive, on an after-tax basis, for and against 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 limiting the foregoing provisions of this clause F, the
Company will control all proceedings taken in connection with the contest of any claim
contemplated by this clause F and, at its sole option, may pursue or forego any and all
administrative appeals, proceedings, hearings and conferences with the taxing authority in respect
of such claim (provided that Executive may participate therein at his own cost and expense) and
may, at its 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

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determination before any administrative tribunal, in a court of initial jurisdiction and in one or
more appellate courts, as the Company will determine; provided, however, that if the Company
directs Executive to pay the tax claimed and sue for a refund, the Company will advance the amount
of such payment to Executive on an interest-free basis and will 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; and provided further, however, that any
extension of the statute of limitations relating to payment of taxes for the taxable year of
Executive with respect to which the contested amount is claimed to be due is limited solely to such
contested amount. Furthermore, the Company’s control of any such contested claim will be limited to
issues with respect to which a Gross-Up Payment would be payable hereunder and Executive will 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.

               (G) If, after the receipt by Executive of an amount advanced by the Company pursuant to
clause F above, Executive receives any refund with respect to such claim, Executive will (subject
to the Company’s complying with the requirements of clause F above) within twenty (20) days
thereafter pay to the Company the amount of such refund (together with any interest paid or
credited thereon after any taxes applicable thereto). If, after the receipt by Executive of an
amount advanced by the Company pursuant to clause F above, a determination is made that Executive
will 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 or refund prior to the expiration of
thirty (30) days after such determination, then such advance will be forgiven and will not be
required to be repaid and the amount of such advance will offset, to the extent thereof, the
amount of Gross-Up Payment required to be paid pursuant to this Section 7(c)(ii).

               (H) If, for any reason, the Accounting Firm, as defined above, fails to act in the manner
contemplated by this Section 7(c) within a reasonable period of time, the Executive may
appoint another nationally recognized independent accounting firm with the consent of the Company
(unless such consent is unreasonably withheld or delayed), to perform all of such duties of the
Accounting Firm that are contemplated by this Section 7(c), in which event such
independent accountants will thereafter be deemed to be the “Accounting Firm” for purposes of this
Section 7(c).

               (I) Notwithstanding anything herein to the contrary, the payment of any Gross-Up Payment or
Underpayment will be made no later than the end of Executive’s taxable year following the year in
which Executive remits the taxes covered by the Gross-Up Payment or Underpayment. For the
avoidance of doubt, the foregoing provision is not intended to extend any time period set forth in
this Section 7(c) within which any Gross-Up Payment or Underpayment must be made, but
rather is intended to ensure that any such Gross-Up Payment or Underpayment will not be subject to
the additional tax provided under Section 409A. Notwithstanding the foregoing, if Executive is a
“specified employee” within the meaning of Section 409A on the date of Executive’s Separation from
Service, other than due to death, and a Gross-Up Payment or Underpayment would not have been
required in the absence of the benefits provided for in this Agreement in connection with
Executive’s Separation from Service, any Gross-Up

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Payment or Underpayment otherwise due to Executive following the Termination Date and on or
within the six (6) month period following Executive’s Separation from Service will accrue
during such period and will become payable in a lump sum payment (less any applicable
withholding taxes) on the date six (6) months and one (1) day following the date of
Executive’s Separation from Service.

          (d) Termination for Disability. If at any time during the Employment Term Executive
becomes unable to perform his duties as an employee as a result of incapacity, which gives rise to
termination of employment for Disability, then (i) Executive will be entitled to receive payments
and benefits in accordance with the Company’s then applicable plans, policies, and arrangements;
provided, however, that to the extent such payments or benefits are “separation pay” within the
meaning of Section 409A, such payments and benefits will be paid or provided at the same time and
in the same form as similar payments and benefits are provided under Section 7(b) in
connection with Executive’s Constructive Termination or involuntary termination without Business
Reasons; (ii) Executive’s outstanding Incentive Awards and other stock options and equity
arrangements will expire in accordance with the terms of the applicable award agreement(s) and the
Company stock plans under which they were granted; and (iii) with respect to any accrued but
un-granted Incentive Awards pursuant to Section 6(a), Executive will be entitled to receive
a lump sum cash payment equal to the value of the vesting acceleration that Executive would have
received, in accordance with the disability provisions set forth in the Company’s equity award
policy then in effect had Executive’s employment not been terminated for Disability prior to the
date those awards would have been granted. The amount payable pursuant to Section 7(d)(iii)
will be determined by multiplying the percentage of vesting acceleration to which Executive would
have been entitled in accordance with the disability provisions set forth in the Company’s equity
award policy then in effect by the result of $7,000,000 minus the sum of the Base Salary and Target
Bonus for the year in which the Termination Date occurs. This payment will be made on the first
regular Company pay day at least six (6) months after the Termination Date or, if later, at least
six (6) months after the date of Executive’s Separation from Service.

          (e) Voluntary Termination, Involuntary Termination for Business Reasons or Termination
following a Change in Control. If (i) Executive voluntarily terminates his employment (other
than in the case of a Constructive Termination), (ii) Executive is terminated involuntarily for
Business Reasons, or (iii) Executive’s employment is terminated within the twelve (12) month
period following a Change in Control to which Section 7(c) applies, then in any such event
(A) all further vesting of Executive’s Incentive Awards and other equity arrangements will cease
immediately (it being understood that the Executive’s Incentive Awards will fully vest upon such a
Change in Control as provided in Section 6(a)) and such awards will expire in accordance
with the terms of the applicable award agreement(s), (B) all payments of compensation by the
Company to Executive hereunder will terminate immediately (except as to amounts already earned),
and (C) Executive will not be entitled to any severance but Executive will be paid all accrued but
unpaid PTO, expense reimbursements and other benefits due to Executive through his termination
date under any Company-provided or paid plans, policies, and arrangements.

          (f) Termination Upon Death. If Executive’s employment is terminated because of death,
then (i) Executive’s representatives will be entitled to receive payments and

10

 

benefits in accordance with the Company’s then applicable plans, policies, and arrangements;
provided, however, that to the extent such payments or benefits are “separation pay” within the
meaning of Section 409A, such payments and benefits will be paid or provided at the same time and
in the same form as similar payments and benefits are provided under Section 7(b) in
connection with Executive’s Constructive Termination or involuntary termination without Business
Reasons; and (ii) Executive’s outstanding Incentive Awards and other equity arrangements will
expire in accordance with the terms of the applicable award agreement(s) and the Company stock
plans under which they were granted.

          (g) Exclusivity. The provisions of this Section 7 are intended to be and are
exclusive and in lieu of any other rights or remedies to which Executive or the Company may
otherwise be entitled, either at law, tort or contract, in equity, or under this Agreement, in the
event of any termination of Executive’s employment. Executive will be entitled to no benefits,
compensation or other payments or rights upon termination of employment other than those benefits
expressly set forth in paragraph (b), (c), (d), (e) or (f) of this Section 7, whichever
will be applicable and those benefits required to be provided by law.

          (h) Mitigation. Amounts provided under this Section 7 will not be reduced by
any future earnings Executive may receive following the termination of his employment with the
Company.

          (i) Code Section 409A.

               (i) Six-Month Delay. Notwithstanding anything to the contrary in this Agreement, no
Deferred Compensation Separation Benefits (as defined below) or other severance benefits that
otherwise are exempt from Section 409A (as defined below) pursuant to Treasury Regulation Section
1.409A-1(b)(9) will be considered due or payable until Executive has a Separation from Service. In
addition, as Executive currently is a “specified employee” within the meaning of Section 409A and
the Company anticipates that Executive will continue to be a specified employee until Executive’s
Separation from Service, the severance benefits payable to Executive under this Agreement that are
considered deferred compensation under Section 409A, if any, and any other severance payments or
separation benefits that are considered deferred compensation under Section 409A (together, the
“Deferred Compensation Separation Benefits”) will, except in the case of death, be delayed for the
period beginning on the Termination Date and ending on the date that is six (6) months following
the Termination Date or, if later, six (6) months following the date of Executive’s Separation
from Service. All subsequent payments, if any, will be payable in accordance with the payment
schedule applicable to each payment or benefit. Notwithstanding anything herein to the contrary,
if Executive dies following his Separation from Service but prior to the six (6) month anniversary
of his date of separation, then any payments delayed in accordance with this Section 7(i)
or otherwise will be payable in a lump sum (less applicable withholding taxes) to Executive’s
estate as soon as administratively practicable after the date of his death and all other Deferred
Compensation Separation Benefits will be payable in accordance with the payment schedule
applicable to each payment or benefit.

               (ii) Amendments to this Agreement to Comply with Section 409A. It is the intent of
this Agreement to comply with the requirements of Section 409A so that none of

11

 

the payments and benefits to be provided hereunder will be subject to the additional tax imposed
under Section 409A, and any ambiguities herein will be interpreted to so comply. Executive and the
Company agree to work together in good faith to consider amendments to this Agreement and to take
such reasonable actions which are necessary, appropriate or desirable to avoid imposition of any
additional tax or income recognition under Section 409A prior to actual payment to Executive.

     8. Definition of Terms. The following terms referred to in this Agreement will have
the following meanings:

          (a) Business Reasons. “Business Reasons” means (i) gross negligence, willful
misconduct or other willful malfeasance by Executive in the performance of his duties, (ii)
Executive’s conviction of a felony, or other criminal offense involving moral turpitude, or (iii)
Executive’s material breach of this Agreement, including without limitation any repeated breach of
Sections 9 through 12 hereof, provided that, in the case of clauses (i) or (iii) above, the
Board provides written notice of such “Business Reason” to the Executive, specifically identifying
the circumstance(s) which the Board believes constitute such “Business Reason”, and Executive will
have the opportunity to cure such circumstances to the reasonable satisfaction of the Board within
thirty (30) days following the delivery of such notice; provided, further, that at the conclusion
of such thirty (30) day cure period, the final determination of the occurrence of “Business
Reasons” and/or the effectiveness of any such cure, will be made at a meeting of the Board at which
Executive (and, at Executive’s option, his counsel) will have had a right to participate. For
purpose of this paragraph, no act or failure to act by Executive will be considered “willful”
unless done or omitted to be done by Executive in bad faith or without reasonable belief that
Executive’s action or omission was in the best interests of the Company or its affiliates. Any act,
or failure to act, based upon authority given pursuant to a resolution duly adopted by the Board or
based upon the advice of counsel for the Company will be conclusively presumed to be done, or
omitted to be done, by Executive in good faith and in the best interests of the Company. The Board
must notify Executive of any event constituting Business Reasons within ninety (90) days following
any Board member’s (excluding Executive) actual knowledge of its existence (which period will be
extended during the period of any reasonable investigation conducted in good faith by or on behalf
of the Board) or such event will not constitute Business Reasons under this Agreement.

          (b) Disability. “Disability” will mean that Executive has been unable to
perform his duties as an employee as the result of his incapacity due to physical or mental
illness, and such inability, at least twenty-six (26) weeks after its commencement, is determined
to be total and permanent by a physician selected by the Company with the consent of the Executive
or his representative (unless such consent is unreasonably withheld or delayed). Termination
resulting from Disability may only be effected after at least sixty (60) days written notice by
the Company of its intention to terminate Executive’s employment. In the event that Executive
resumes the performance of substantially all of his duties hereunder before the termination of his
employment becomes effective, the notice of intent to terminate automatically will be deemed to
have been revoked.

          (c) Termination Date. “Termination Date” will mean (i) if this Agreement is
terminated on account of death, the date of death; (ii) if this Agreement is terminated for

12

 

Disability, the date specified in Section 8(b); (iii) if this Agreement is terminated by
the Company, the date on which indicated in a notice of termination that is given to Executive by
the Company in accordance with Sections 7(a) and 14(a); (iv) if the Agreement is
terminated by Executive, the date indicated in a notice of termination given to the Company by
Executive in accordance with Sections 7(a) and 14(a); or (v) if this Agreement
expires by its terms, then the last day of the term of this Agreement.

          (d) Constructive Termination. A “Constructive Termination” will be deemed to
occur if Executive elects to voluntarily terminate employment within the ninety (90) day period
immediately following any of the following events: (i) Executive’s position changes as a result of
an action by the Company such that (A) Executive will no longer be Chief Executive Officer of the
Company, (B) Executive will have duties and responsibilities demonstrably less than those typically
associated with a Chief Executive Officer, or (C) Executive will no longer report directly to the
Board; provided that if the Board determines by unanimous vote of all directors (excluding
Executive) that it is required either by law or by rule of any exchange or listing entity whose
rules must be complied with in order for the Company to maintain such listing that Executive not be
Chief Executive Officer, then the involuntary removal of Executive from the position of Chief
Executive Officer will not, in and of itself, constitute a Constructive Termination, (ii) Executive
is required to relocate his place of employment, other than a relocation within fifty (50) miles of
the Company’s current Stamford headquarters, (iii) there is a reduction in Executive’s Base Salary
or Target Bonus other than any such reduction consistent with, a general reduction of pay across
the executive staff as a group, as an economic or strategic measure due to poor financial
performance by the Company, or (iv) there occurs any other material breach of this Agreement by the
Company (including, without limitation, any breach of Section 14(c), but excluding the
termination of Executive’s service as a director due to applicable legal or listing requirements or
stockholders failing to reelect Executive to the Board) after a written demand for substantial
performance is delivered to the Board by Executive which specifically identifies the manner in
which Executive believes that the Company has materially breached this Agreement, and the Company
has failed to cure such breach to the reasonable satisfaction of Executive within thirty (30) days
following the delivery of such notice, during which thirty (30) day notice period, the ninety (90)
day period described above will be tolled.

          (e) Change in Control. “Change in Control” will mean the happening of any of
the events described in Section 2(e)(ii) of the Plan (without regard to when Awards were granted
under the Plan, as such term is defined in the Plan).

          (f) Separation from Service. “Separation from Service” will mean Executive’s
“separation from service” within the meaning of Section 409A.

     9. Confidential Information.

          (a) Executive acknowledges that the Confidential Information relating to the business of the
Company and its subsidiaries which Executive has obtained or will obtain during the course of his
association with the Company and subsidiaries and his performance under this Agreement are the
property of the Company and its subsidiaries. Executive agrees that he will not disclose or use at
any time, either during or after the Employment Term, any Confidential Information without the
written consent of the Board, other than proper disclosure or use in the

13

 

performance of his duties hereunder. Executive agrees to deliver to the Company at the end of the
Employment Term, or at any other time that the Company may request, all memoranda, notes, plans,
records, documentation and other materials (and copies thereof) containing Confidential Information
relating to the business of the Company and its subsidiaries, no matter where such material is
located and no matter what form the material may be in, which Executive may then possess or have
under his control. If requested by the Company, Executive will provide to the Company written
confirmation that all such materials have been delivered to the Company or have been destroyed.
Executive will take all appropriate steps to safeguard Confidential Information and to protect it
against disclosure, misuse, espionage, loss and theft.

          (b) “Confidential Information” will mean information which is not generally known to
the public and which is used, developed, or obtained by the Company or its subsidiaries relating
to the businesses of any of the Company and its subsidiaries or the business of any customer
thereof including, but not limited to: products or services; fees, costs and pricing structure;
designs; analyses; formulae; drawings; photographs; reports; computer software, including
operating systems, applications, program listings, flow charts, manuals and documentation;
databases; accounting and business methods; inventions and new developments and methods, whether
patentable or unpatentable and whether or not reduced to practice; all copyrightable works; the
customers of any of the Company and its subsidiaries and the Confidential Information of any
customer thereof; and all similar and related information in whatever form. Confidential
Information will not include any information which (i) was rightfully known by Executive prior to
the Employment Term, (ii) is publicly disclosed by law or in response to an order of a court or
governmental agency, (iii) becomes publicly available though no fault of Executive or (iv) has
been published in a form generally available to the public prior to the date upon which Executive
proposes to disclose such information. Information will not be deemed to have been published
merely because individual portions of the information have been separately published, but only if
all the material features comprising such information have been published in combination.

     10. Inventions and Patents. In the event that Executive, as a part of Executive’s
activities on behalf of the Company, generates, authors or contributes to any invention, new
development or method, whether or not patentable and whether or not reduced to practice, any
copyrightable work, any trade secret, any other Confidential Information, or any information that
gives any of the Company and its subsidiaries an advantage over any competitor, or similar or
related developments or information related to the present or future business of any of the
Company and its subsidiaries (collectively “Developments and Information”), Executive
acknowledges that all Developments and Information are the exclusive property of the Company.
Executive hereby assigns to the Company, its nominees, successors or assigns, all rights, title
and interest to Developments and Information. Executive will cooperate with the Board to protect
the interests of the Company and its subsidiaries in Developments and Information. Executive will
execute and file any document related to any Developments and Information requested by the Board
including applications, powers of attorney, assignments or other instruments which the Board deems
necessary to apply for any patent, copyright or other proprietary right in any and all countries
or to convey any right, title or interest therein to any of the Company’s nominees, successors or
assigns.

     11. No Conflicts.

14

 

          (a) Executive agrees that during the Employment Term, in his individual capacity he will not
enter into any agreement, arrangement or understanding, whether written or oral, with any supplier,
contractor, distributor, wholesaler, sales representative, representative group or customer,
relating to the business of the Company or any of its subsidiaries, without the express written
consent of the Board.

          (b) As long as Executive is employed by the Company or any of its subsidiaries, Executive
agrees that he will not, except as set forth in Section 1, or with the express written
consent of the Board, become engaged in, render services for, or permit his name to be used in
connection with, any for-profit business other than the business of the Company, any of its
subsidiaries or any corporation or partnership in which the Company or any of its subsidiaries
have an equity interest.

     12. Non-Competition Agreement.

          (a) Executive acknowledges that his services are of a special, unique and extraordinary value
to the Company and that he has access to the Company’s trade secrets, Confidential Information and
strategic plans of the most valuable nature. Accordingly, Executive agrees that for the period of
thirty-six (36) months following the Termination Date, Executive will not directly or indirectly
own, manage, control, participate in, consult with, render services for, or in any manner engage
in any business competing with the businesses of the Company or any of its subsidiaries as such
businesses exist or are in process of development on the Termination Date (as evidenced by written
proposals, market research or similar materials), including without limitation the publication of
periodic research and analysis of the information technology industries. Nothing herein will
prohibit Executive from being a passive owner of not more than 1% of the outstanding stock of any
class of a corporation that is publicly traded, so long as Executive has no active participation
in the business of such corporation.

          (b) In addition, for a period of thirty-six (36) months commencing on the Termination Date,
Executive will not (i) directly or indirectly induce or attempt to induce any employee of the
Company or any subsidiary (other than his own assistant) to leave the employ of the Company or
such subsidiary, or in any way interfere with the relationship between the Company or any
subsidiary and any employee thereof, (ii) hire directly or though another entity any person who
was an employee of the Company or any subsidiary at any time during the then preceding twelve (12)
months, provided that Executive may hire any such person who responds to a general advertisement
offering employment so long as such person did not have regular contact with Executive in the
course of his or her employment with the Company, (iii) directly or indirectly induce or attempt
to induce any customer, supplier, licensee or other business relation of the Company or any
subsidiary to cease doing business with the Company or such subsidiary, or in any way interfere
with the relationship between any such customer, supplier, licensee or business relation and the
Company or any subsidiary, or (iv) disparage the Company, its executive officers, or its
directors.

          (c) Executive agrees that these restrictions on competition and solicitation will be deemed
to be a series of separate covenants not-to-compete and a series of
separate non-solicitation
covenants for each month within the specified periods, separate covenants not-to-compete and
non-solicitation covenants for each state within the United States and each country

15

 

in the world, and separate covenants not-to-compete for each area of competition. If any court of
competent jurisdiction will determine any of the foregoing covenants to be unenforceable with
respect to the term thereof or the scope of the subject matter or geography covered thereby, such
remaining covenants will nonetheless be enforceable by such court against such other party or
parties or upon such shorter term or within such lesser scope as may be determined by the court to
be enforceable.

          (d) Because Executive’s services are unique and because Executive has access to Confidential
Information and strategic plans of the Company of the most valuable nature, the parties agree that
the covenants contained in this Section 12 are necessary to protect the value of the
business of the Company and that a breach of any such covenant would result in irreparable and
continuing damage for which there would be no adequate remedy at law. The parties agree therefore
that in the event of a breach or threatened breach of this Agreement, the Company or its
successors or assigns may, in addition to other rights and remedies existing in their favor, apply
to any court of competent jurisdiction for specific performance and/or injunctive or other relief
in order to enforce, or prevent any violations of, the provisions hereof.

     13. SEC Compliance. The Company covenants that:

          (a) at all times during the Employment Term and the term of any Incentive Awards, if later,
the Company will use commercially reasonable efforts to maintain in effect a valid and effective
registration statement on Form S-8 filed with the Securities Exchange Commission pursuant to the
Securities Act of 1933, as amended (the “Securities Act”) covering any outstanding equity
awards made to Executive; provided, however, that nothing contained herein shall be deemed to
limit the right of the Company, in good faith, to suspend or withdraw such registration so long as
the Company thereafter uses commercially reasonable efforts to comply with this provision; and

          (b) for so long as Executive holds either Incentive Awards or shares of Common Stock of the
Company obtained through the vesting or exercise of an Incentive Award, and until Executive is
free to sell all of the shares underlying, relating to or obtained through the vesting or exercise
of, Incentive Awards pursuant to Rule 144 promulgated under the Securities Act, in a ninety (90)
day period, the Company will include in such Registration Statement on Form S-8 described in
clause (i) above a customary reoffer prospectus covering Executive’s offer and sale of stock
obtained through the vesting or exercise of Incentive Awards in any manner requested by the
Executive from time to time.

     14. Miscellaneous Provisions.

          (a) Notice. Notices and all other communications contemplated by this Agreement will
be in writing, will be effective when given, and in any event will be deemed to have been duly
given (i) when delivered, if personally delivered, (ii) three (3) business days after deposit in
the U.S. mail, if mailed by U.S. registered or certified mail, return receipt requested, or (iii)
one (1) business day after the business day of deposit with Federal Express or similar overnight
courier, if so delivered, freight prepaid. In the case of Executive, notices will be addressed to
him at the home address which he most recently communicated to the Company in writing, provided
that a copy of such notice is delivered to the Executive’s last known attorneys.

16

 

In the case of the Company, notices will be addressed to its corporate headquarters, and all
notices will be directed to the attention of its Corporate Secretary.

          (b) Notice of Termination. Any termination by the Company or Executive will be
communicated by a notice of termination to the other party hereto given in accordance with
paragraph (a) hereof. Such notice will indicate the specific termination provision in this
Agreement relied upon.

          (c) Successors.

               (i) Company’s Successors. Any successor to the Company (whether direct or indirect
and whether by purchase, lease, merger, consolidation, liquidation or otherwise) to all or
substantially all of the Company’s business and/or assets will be entitled to assume the rights
and will be obligated to assume the obligations of the Company under this Agreement and will agree
to perform, in good faith, the Company’s obligations under this Agreement in the same manner and
to the same extent as the Company would be required to perform such obligations in the absence of
a succession. For all purposes under this Agreement, the term “Company” will include any successor
to the Company’s business and/or assets which becomes bound by the terms of this Agreement by
operation of law or this Agreement.

               (ii) Executive’s Successors. The terms of this Agreement and all rights of Executive
hereunder will inure to the benefit of, and be enforceable by, Executive’s personal or legal
representatives, executors, administrators, successors, heirs, distributees, devisees and
legatees.

               (iii) No Other Assignment of Benefits. Except as provided in this Section
14(c), the rights of any person to payments or benefits under this Agreement will not be made
subject to option or assignment, either by voluntary or involuntary assignment or by operation of
law, including (without limitation) bankruptcy, garnishment, attachment or other creditor’s
process, and any action in violation of this subsection (iii) will be void.

          (d) Waiver; Amendment. No provision of this Agreement will be amended, modified,
waived or discharged unless the modification, waiver or discharge is agreed to in writing and
signed by Executive and by an authorized officer of the Company (other than Executive). No waiver
by either party of any breach of, or of compliance with, any condition or provision of this
Agreement by the other party will be considered a waiver of any other condition or provision or of
the same condition or provision at another time.

          (e) Entire Agreement. This Agreement will supersede any and all prior agreements,
representations or understandings (whether oral or written and whether express or implied) between
the parties with respect to the subject matter hereof.

          (f) Severability. The invalidity or unenforceability of any provision or provisions
of this Agreement will not affect the validity or enforceability of any other provision hereof,
which will remain in full force and effect.

          (g) Arbitration. Any dispute or controversy arising under or in connection with this
Agreement will be settled exclusively by arbitration in New York, New York, in

17

 

accordance with the Employment Arbitration Rules of the American Arbitration Association then in
effect. Judgment may be entered on the arbitrator’s award in any court having jurisdiction. No
party will be entitled to seek or be awarded punitive damages. All attorneys fees and costs will be
allocated or apportioned as agreed by the parties or, in the absence of an agreement, in such
manner as the arbitrator or court will determine to be appropriate to reflect the final decision of
the deciding body as compared to the initial positions in arbitration of each party. This Agreement
will be construed in accordance with and governed by the laws of the State of New York as they
apply to contracts entered into and wholly to be performed within such State by residents thereof.

          (h) Withholding of Taxes. All payments made pursuant to this Agreement will be
subject to withholding of applicable taxes.

          (i) Indemnification. Executive will be covered under the Company’s insurance policies
and, subject to applicable law, will be provided indemnification to the maximum extent permitted
by the Company’s bylaws and Certificate of Incorporation, with such insurance coverage and
indemnification to be in accordance with the Company’s standard practices for senior executive
officers but on terms no less favorable than provided to any other Company senior executive
officer or director.

          (J) Compliance with Company Policies. During the Employment Term, Executive will
comply with all Company policies generally applicable to the Company’s executive officers.

          (k) Legal Fees. The Company will pay directly the reasonable fees and expenses of
counsel retained by Executive in connection with the preparation, negotiation and execution of
this amended Agreement, up to a maximum of $10,000.

          (l) Counterparts. This Agreement may be executed in counterparts, each of which will
be deemed an original, but all of which together will constitute one and the same instrument.

18

 

     IN WITNESS WHEREOF, each of the parties has executed this Agreement, in the case of the
Company by its duly authorized officer, as of the day and year first above written.

	 	 	 	 	 
	 	GARTNER, INC.

 	 
	 	By:  	
 	 
	 	 	Anne Sutherland Fuchs, Chairman,  	 
	 	 	Compensation Committee of the Board of

Directors 	 
	 
	 	EUGENE A. HALL

 	 
	 	

 	 
	 	 	 
	 	 	 

 

 

	 	 	 	 	 

     IN WITNESS WHEREOF, each of the parties has executed this Agreement, in the case of the
Company by its duly authorized officer, as of the day and year first above written.

	 	 	 	 	 
	 	GARTNER, INC.

 	 
	 	By:  	 	 
	 	 	Anne Sutherland Fuchs, Chairman,  	 
	 	 	Compensation Committee of the Board of

Directors 	 
	 
	 	Eugene A. Hall

 	 
	 	
 	 
	 	 	 
	 	 	 

19

 

	 	 	 	 	 

Exhibit A

 

 

RELEASE AGREEMENT

     This Release Agreement (the “Agreement”) is made by and between Eugene A. Hall
(“Executive”) and Gartner, Inc. (“Company”) (jointly referred to as the “Parties”).

     NOW THEREFORE, in consideration of the promises made herein, the Parties hereby agree as
follows:

     1. Consideration. The Company agrees to provide Executive with the consideration set
forth in the Employment Agreement between Executive and the Company dated February 15, 2007, as
amended on December 31, 2008 (the “Employment Agreement”). No consideration shall be due or payable
to Executive by the Company until the Effective Date of this Agreement, as that term is defined
below.

     2. Payment of Salary. Executive acknowledges and represents that the Company has
paid all salary, wages, bonuses, accrued vacation, interest, severance, stock, stock options,
vesting, fees, business expenses, and any and all benefits and compensation due to Executive,
with the exception of the consideration provided for in this Agreement.

     3. Release of Claims. Executive agrees that the foregoing consideration represents
settlement in full of all outstanding obligations owed to Executive by the Company and its current
and former: officers, directors, employees, agents, investors, attorneys, shareholders,
administrators, affiliates, divisions, subsidiaries, predecessor and successor corporations and
assigns (the “Releasees”). Executive, on his own behalf, and on behalf of his respective heirs,
family members, executors, agents, and assigns, hereby fully and forever releases the Company and
the other Releasees from, and agrees not to sue concerning, any claim, duty, obligation or cause of
action relating to any matters of any kind, whether presently known or unknown, suspected or
unsuspected, that Executive may possess arising from any omissions, acts or facts that have
occurred up until and including the Effective Date of this Agreement including, without limitation:

          (a) any and all claims relating to or arising from Executive’s employment with the Company or
the termination of that employment;

          (b) any and all claims relating to, or arising from, Executive’s right to purchase, or actual
purchase of, shares of Company stock, including, but not limited to, any claims for fraud,
misrepresentation, breach of fiduciary duty, breach of duty under applicable state corporate law,
and securities fraud under any state or federal law;

          (c) any and all claims under the law of any jurisdiction, including, but not limited to,
wrongful discharge of employment; constructive discharge from employment; termination in violation
of public policy; discrimination; breach of contract, both express and implied; breach of a
covenant of good faith and fair dealing, both express and implied; promissory estoppel; negligent
or intentional infliction of emotional distress; negligent or intentional misrepresentation;
negligent or intentional interference with contract or prospective economic advantage; unfair
business practices; defamation; libel; slander; negligence; personal injury; assault; battery;
invasion of privacy; false imprisonment; and conversion;

 

 

          (d) any and all claims for violation of any federal, state or municipal statute, including,
but not limited to, Title VII of the Civil Rights Act of 1964; the Civil Rights Act of 1991; the
Americans with Disabilities Act of 1990; the Fair Labor Standards Act; the Employee Retirement
Income Security Act of 1974; the Worker Adjustment and Retraining Notification Act; the Family and
Medical Leave Act; the Fair Credit Reporting Act; the Sarbanes Oxley Act; the Connecticut Fair
Employment Practices Act; the Connecticut Human Rights and Opportunities Law; and the Connecticut
General Statute Title 31;

          (e) any and all claims for violation of the federal, or any state, constitution;

          (f) any and all claims arising out of any other laws and regulations relating to employment or
employment discrimination;

          (g) any claim for any loss, cost, damage, or expense arising out of any dispute over the
non-withholding or other tax treatment of any of the proceeds received by Executive as a result of
this Agreement; and

          (h) any and all claims for attorney fees and costs.

     The Company and Executive agree that the release set forth in this section shall be and remain
in effect in all respects as a complete general release as to the matters released. This release
does not extend to (a) any obligations incurred under this Agreement, including, without
limitation, the obligation to provide the consideration referenced in Section 1, (b) payment of
accrued benefits under an employee benefit plan, to the extent and in the manner prescribed by the
plan documents; (c) the election of continued healthcare coverage under an employee health plan
pursuant to COBRA; (d) the application for and/or receipt of unemployment benefits to the extent
eligible; (e) the receipt of indemnification under the Company’s charter, bylaws or other
organizational documents of the Company, or (f) any claims for benefits under the Director &
Officer insurance of the Company.

     4. Acknowledgement of Waiver of Claims Under ADEA. Executive acknowledges that he is
waiving and releasing any rights he may have under the Age Discrimination in Employment Act of 1967
(“ADEA”) and that this waiver and release is knowing and voluntary. Executive and the Company agree
that this waiver and release does not apply to any rights or claims that may arise under the ADEA
after the Effective Date of this Agreement. Executive acknowledges that the consideration given for
this waiver and release Agreement is in addition to anything of value to which Executive was
already entitled. Executive further acknowledges that he has been advised by this writing that:

	 	a.	 	he should consult with an attorney prior to executing this Agreement;
	 
	 	b.	 	he has twenty-one (21) calendar days within which to consider this Agreement;
	 
	 	c.	 	he has seven (7) calendar days following his execution of this Agreement
to revoke this Agreement;
	 
	 	d.	 	this ADEA waiver shall not be effective until the revocation period has expired; and,

-2-

 

	 	e.	 	nothing in this Agreement prevents or precludes Executive from challenging or seeking
a determination in good faith of the validity of this waiver under the ADEA, nor does it impose
any condition precedent, penalties or costs for doing so, unless specifically authorized by
federal law.

ANY REVOCATION SHOULD BE IN WRITING AND DELIVERED TO LEWIS G. SCHWARTZ, AT 56 TOP GALLANT ROAD,
STAMFORD, CT 06904 ON OR BEFORE 11:59 P.M. ON THE SEVENTH DAY AFTER EXECUTIVE’S EXECUTION OF THIS
AGREEMENT.

     5. No Pending or Future Lawsuits. Executive represents that he has no lawsuits,
claims, or actions pending in his name, or on behalf of any other person or entity, against the
Company or any of the other Releasees. Executive also represents that he does not intend to bring
any claims on his own behalf or on behalf of any other person or entity against any of the
Releasees.

     6. No Assistance. Executive agrees that he will not knowingly counsel or assist any
attorneys or their clients in the presentation or prosecution of any disputes, differences,
grievances, claims, charges, or complaints by any third party against
any of the Releasees, unless
under a subpoena or other court order to do so. Executive agrees both to immediately notify the
Company upon receipt of any such subpoena or court order, and to furnish, within three (3) business
days of its receipt, a copy of such subpoena or court order to the Company. If approached by anyone
for counsel or assistance in the presentation or prosecution of any disputes, differences,
grievances, claims, charges, or complaints against any of the Releasees, Executive shall state no
more than that he cannot provide counsel or assistance.

     7. Breach. Executive acknowledges and agrees that any breach of any provision of this
Agreement by Executive shall constitute a material breach of this Agreement and shall entitle the
Company immediately to recover the consideration provided to Executive under this Agreement.

     8. Non-Disparagement. The Parties agree to refrain from (i) any defamation, libel or
slander, or (ii) tortious interference with the contracts and relationships, in either case, of the
other Party (and, in the case of Executive, the Releasees as well).

     9. No Admission of Liability. The Parties understand and acknowledge that this
Agreement constitutes a compromise and settlement of potential claims. No action taken by the
Parties, previously or in connection with this Agreement, shall be construed to be: (a) an
admission of the truth or falsity of any claims made, or (b) an admission by either party of any
fault or liability whatsoever to the other party or to any third party.

     10. No Representations. Each party represents that it has had the opportunity to
consult with an attorney, and has carefully read and understands the scope and effect of the
provisions of this Agreement. Neither party has relied upon any representations or statements made
by the other party hereto which are not specifically set forth in this Agreement.

     11. Severability. In the event that any provision in this Agreement becomes or is
declared by a court of competent jurisdiction to be illegal, unenforceable, or void, this
Agreement shall continue

-3-

 

in full force and effect without said provision so long as the remaining provisions remain
intelligible and continue to reflect the original intent of the Parties.

     12. Entire Agreement. This Agreement represents the entire agreement and understanding
between the Company and Executive concerning the subject matter of this Agreement, and supersedes
and replaces any and all prior agreements and understandings between the Parties concerning the
subject matter of this Agreement.

     13. No Oral Modification. Any modification or amendment of this Agreement, or
additional obligation assumed by either party in connection with this Agreement, shall be effective
only if placed in writing and signed by both Parties or their authorized representatives.

     14. Attorneys’ Fees. In the event that either Party brings an action to enforce or
effect its rights under this Agreement, the prevailing party shall be entitled to recover its costs
and expenses, including the costs of mediation, arbitration, litigation, court fees, plus
reasonable attorneys’ fees incurred in connection with such an action.

     15. Governing Law. This Agreement shall be governed by the laws of the State of
New York, without regard for choice of law provisions.

     16. Effective Date. This Agreement will become effective on the eighth day after it
has been signed by both Parties (the “Effective Date”), provided that Employee has not revoked the
Agreement before that date. This Agreement shall become effective or enforceable, and the
consideration provided herein shall not be payable, until the Effective Date.

     17. Counterparts. This Agreement may be executed in counterparts, and each counterpart
shall have the same force and effect as an original and shall constitute an effective, binding
agreement on the part of each of the undersigned.

     18. Voluntary Execution of Agreement. This Agreement is executed voluntarily and with
the full intent of releasing all claims, and without any duress or undue influence by any of the
Parties. The Parties acknowledge that:

          (a) They have read this Agreement;

          (b) They have been represented in the preparation, negotiation, and execution of this
Agreement by legal counsel of their own choice or that they have voluntarily declined to seek such
counsel;

          (c) They understand the terms and consequences of this Agreement and of the releases it
contains; and

          (d) They are fully aware of the legal and binding effect of this Agreement.

-4-

 

     IN WITNESS WHEREOF, the Parties have executed this Agreement on the dates set forth below.

	 	 	 	 	 	 	 	 	 
	Dated:

	 	 	 	 
	 	By:	 	 
	 

	 	 

	 	 	 	 	 	 

For Gartner, Inc.
	 
	 	 	 	 	 	 	 	 
	Dated:

	 	 	 	 
	 	By:	 	 
	 

	 	 

	 	 	 	 	 	 

Eugene A. Hall

-5-EX-10.15

Exhibit 10.15

GARTNER, INC.

DEFERRED COMPENSATION PLAN

Effective January 1, 2009

(approved by the Board of Directors on October 28, 2008

with further revisions approved by Lewis G. Schwartz on behalf of the Retirement Benefit

Committee of Gartner, Inc. on December 19, 2008

pursuant to a delegation of authority by the Board of Directors)

 

 

TABLE OF CONTENTS

	 	 	 	 	 	 	 
	 	 	 	 	Page
	ARTICLE I

	 	DEFINITIONS
	 	 	2	 
	ARTICLE II

	 	PARTICIPATION
	 	 	5	 
	ARTICLE III

	 	DEFERRAL ELECTIONS
	 	 	6	 
	ARTICLE IV

	 	ACCOUNTS
	 	 	9	 
	ARTICLE V

	 	VESTING
	 	 	11	 
	ARTICLE VI

	 	RABBI TRUST
	 	 	12	 
	ARTICLE VII

	 	DISTRIBUTIONS
	 	 	13	 
	ARTICLE VIII

	 	ADMINISTRATION
	 	 	18	 
	ARTICLE IX

	 	MISCELLANEOUS
	 	 	20	 

-i-

 

GARTNER, INC.

DEFERRED COMPENSATION PLAN

PREAMBLE

     This Garner, Inc. Deferred Compensation Plan (the “Plan”) was adopted, effective January 1,
2005, by Gartner, Inc. and is hereby amended and restated effective January 1, 2009.

     The Plan is an unfunded plan maintained for the purpose of providing deferred compensation for
a select group of management or highly compensated employees of the Company. This Plan is intended,
and shall be construed, to comply with Section 409A of the Internal Revenue Code and applicable
guidance issued thereunder (“Section 409A”) and shall be amended by the Company, retroactive to its
effective date if appropriate, in the event that the Company determines such amendment is necessary
to comply with Section 409A.

     The Company has entered into an agreement (the “Trust Agreement”) with an institutional
trustee (the “Trustee”) under an irrevocable trust to be used in connection with the Plan and the
Grandfathered Plan described below (the “Rabbi Trust”). The Company intends the Trust to be a
“grantor trust” with the principal and income of the Trust treated as assets and income of the
Company for federal and state income tax purposes. The Company intends the assets of the Trust at
all times to be subject to the claims of general creditors of the Company as provided in the Trust
Agreement. The Company intends the existence of the Trust not to alter the characterization of the
Plan as “unfunded” for purposes of the Employee Retirement Income Security Act of 1974, as amended
(“ERISA”), and not to be construed to provide income to Plan participants under the Plan prior to
actual payment of vested accrued benefits hereunder.

     The Gartner, Inc. Management Deferred Compensation Plan (the “Grandfathered Plan”), originally
established effective June 1, 1998, was frozen as to new contributions effective December 31, 2004
and continues to exist as a grandfathered plan under Section 409A, such that the vested account
balances of participants in such grandfathered plan as of December 31, 2004, plus any earnings
thereon, are not subject to Section 409A.

1

 

ARTICLE I

DEFINITIONS

     Whenever the following words and phrases are used in this Plan, with the first letter
capitalized, they shall have the meanings specified below:

     “Account” means, for each Participant, the bookkeeping account maintained by the Company that
is credited with amounts equal to (a) the portion of the Participant’s Salary that he or she elects
to defer, (b) the portion of the Participant’s Bonus that he or she elects to defer, (c) the
portion of the Participant’s Commissions that he or she elected to defer prior to January 1, 2009,
(d) Company contributions, if any, made to the Plan for the Participant’s benefit, and (e)
adjustments to reflect deemed earnings and losses pursuant to Section 4.2(c).

     “Administrator” means the Company or such other person or persons acting on behalf of the
Company or to whom the Company has delegated the authority to administer the Plan pursuant to
Article VIII hereof.

     “Beneficiary” or “Beneficiaries” means the beneficiary last designated in writing by a
Participant in accordance with procedures established by the Company from time to time to receive
the benefits specified hereunder in the event of the Participant’s death. No Beneficiary
designation shall become effective unless and until it is filed with the Company during the
Participant’s lifetime.

     “Board of Directors” or “Board” means the Board of Directors of the Company.

     “Bonus” means the amount of cash-based incentive compensation payable to a Participant as
part of the Company’s or a Participating Employer’s annual bonus program.

     “Code” means the Internal Revenue Code of 1986, as amended.

     “Commission” means the amount of compensation (other than Salary and Bonus) payable to a
Participant as a result of sales transactions generated by such Participant. Commissions are not
eligible for deferral.

     “Company” means Gartner, Inc.

     “Compensation” means the Bonus and Salary that a Participant earns for services rendered
to the Company or a Participating Employer.

     “Distributable Amount” means the amount a Participant’s Account, at the time of distribution
under Section 7.1, that is subject to a particular distribution election (or to the default
distribution provision).

2

 

     “Distribution Event” means, with respect to each Participant, the Participant’s separation
from service (as defined in Section 409A) for any reason (including retirement, voluntary or
involuntary termination, or disability) or the participant’s death.

     “Election Period” means a reasonable period, established by the Administrator, prior to
each January 1. An Eligible Employee’s first Election Period is referred to herein as the
Initial Election Period.

     “Eligible Employee” means an Employee who has been designated by the Company as eligible to
participate in the Plan; provided, however, that “Eligible Employee” shall also include any
Employee who has an account balance under the Grandfathered Plan as of December 31, 2O04. The
Company may designate Eligible Employees only as of January 1 and June 1 of each Plan Year.

     “Employee” means a common law employee of the Company or a Participating Employer, who is
on the United States payroll of the Company or a Participating Employer.

     “Fund” or “Funds” means one or more of the deemed investment funds selected by the Company
pursuant to Section 3.3.

     “Grandfathered Plan” means the Gartner, Inc. Management Deferred Compensation Plan, originally
effective June 1, 1998, which has been frozen, effective December 31, 2004, with respect to new
contributions and which constitutes a grandfathered plan under Section 409A.

     “Initial Election Period” means (1) for Employees who first become Eligible Employees on
January 1 of a Plan Year, a reasonable period ending prior to such January 1, and (2) for Employees
who first become Eligible Employees on June 1 of a Plan Year, the thirty-day period that begins on
June 1 and ends on June 30 of such Plan Year.

     “Investment Return” means, for each Fund, an amount equal to the pre-tax rate of gain or loss
with respect to such Fund (net of applicable fund and investment charges) as of the close of each
business day.

     “Participant” means an Eligible Employee who has elected to defer Compensation in
accordance with Section 3.1.

     “Participating Employer” means an entity that is directly or indirectly controlled by the
Company or any entity in which the Company has a significant equity or investment interest, in each
case, as determined by the Administrator.

     “Payment Commencement Date” means (1) in the case of a Participant’s separation from service
for any reason other than death, the earlier of the January 1 or July 1 that is at least six months
following such separation from service; and (2) in the case of a Participant’s termination of
employment on account of death, the first of the month following the calendar quarter in which
death occurs.

3

 

     “Plan” means the Gartner, Inc. Deferred Compensation Plan set forth herein, now in
effect, or as amended from time to time.

     “Plan Year” means the calendar year.

     “Salary” means the Employee’s base salary for the Plan Year. Salary excludes any other form of
compensation such as restricted stock, proceeds from stock options or stock appreciation rights,
severance payments, moving expenses, car or other special allowance, or any other amounts included
in an Eligible Employee’s taxable income that is not compensation for services.

     “Section 409A” means Section 409A of the Code and applicable guidance issued thereunder.

4

 

ARTICLE II

PARTICIPATION

2.1 Participation.

     An Eligible Employee shall become a Participant in the Plan by: (a) electing to defer a
portion of his or her Compensation in accordance with Section 3.1, and (b) completing a life
insurance application on such form and in such manner as prescribed by the Administrator. A
Participant may be required to complete additional life insurance applications from time to time,
and a Participant’s failure to complete a life insurance application at the Administrator’s request
may result in the cessation of the Participant’s eligibility to participate in the Plan with
respect to the next following Plan Year.

5

 

ARTICLE III

DEFERRAL ELECTIONS

3.1 Elections to Defer Compensation.

     (a) Election Period. Each Eligible Employee may elect to defer Compensation by filing
an election that conforms to the requirements of this Section, on a written or electronic form
approved by the Administrator, no later than the last day of the applicable Election Period (or
Initial Election Period, in the case of a newly Eligible Employee).

     (b) General Rule. The amount of Compensation that an Eligible Employee may elect to
defer is as follows:

	 	(1)	 	Any whole percentage of Salary up to fifty percent (50%); and/or
	 
	 	(2)	 	Any whole percentage of Bonus up to one hundred percent (100%);
provided, however, that no election shall be effective to reduce the
Compensation paid to an Eligible Employee for a calendar year to an amount that
is less than the amount necessary to pay (i) applicable employment taxes (e.g.,
FICA, hospital insurance) payable with respect to amounts deferred hereunder,
(ii) amounts necessary to satisfy any other benefit plan withholding
obligations, (iii) any resulting income taxes payable with respect to
Compensation that cannot be so deferred, and (iv) any amounts necessary to
satisfy any wage garnishment or similar obligations.

     (c) [reserved]

     (d) Effect of Election.

	 	(1)	 	Initial Election Period. An election to defer
Compensation made during an Initial Election Period shall be effective as to
Compensation for services to be performed thereafter, as follows: (1) An
election to defer Salary made during an Initial Election Period shall be
effective beginning with Salary earned during the first pay period that begins
after the end of the Initial Election Period; and (2) An election to defer
Bonus made during an Initial Election Period shall be effective as to any Bonus
earned after the end of the Initial Election Period, provided that if a
Participant’s Initial Election Period occurs in June, the Participant may defer
a maximum of 50% of the Participant’s Bonus for such year.

6

 

	 	(2)	 	In General. An election to defer Compensation made or
changed during an Election Period other than the Initial Election Period
shall be effective: (i) beginning with Salary earned during the first pay
period that begins on or after the first day of the next succeeding Plan
Year; and (ii) as to any Bonus earned beginning in the next succeeding Plan
Year.

     (e) Duration of Salary Deferral Election. A Salary deferral election made under
Subsection (a) of this Section shall remain in effect, notwithstanding any change in the
Participant’s Salary, until changed or terminated in accordance with the terms of this Article, and
such election shall become irrevocable as of each December 31 with respect to Salary to be earned
in the next succeeding Plan Year. A Participant’s Salary deferral election shall terminate with
respect to future Salary upon the Participant ceasing to be an Employee. If a Participant remains
an Employee but ceases to be an Eligible Employee, the Participant’s Salary deferral election shall
terminate at the end of the calendar year in which the Participant ceased to be an Eligible
Employee.

     (f) Duration of Bonus Deferral Election. A Bonus deferral election made under
Subsection (a) of this Section shall remain in effect until changed or terminated in accordance
with this Article, and such election shall become irrevocable as of each December 31 with respect
to Bonus to be earned in the next succeeding Plan Year. A Participant’s Bonus deferral election
shall terminate with respect to future Bonuses upon the Participant ceasing to be an Employee. If a
Participant remains an Employee but ceases to be an Eligible Employee, the Participant’s Bonus
deferral election shall terminate at the end of the calendar year in which the Participant ceased
to be an Eligible Employee.

3.2 Company Contributions.

     Effective for Plan Years beginning on or after January 1, 2006, the Company may, in its sole
and absolute discretion, make discretionary matching contributions to the Accounts of certain
Participants designated by the Company, in an amount determined pursuant to a formula set by the
Company prior to the beginning of each Plan Year. If such a discretionary matching contribution is
to be made for a Plan Year, the applicable formula shall generally provide for a matching
contribution equal to a specified percentage of the deferrals made under the Plan by each
designated Participant during the Plan Year; provided that the formula may limit the amount of
matching contributions to a specified percentage of compensation, a specified dollar amount, or
some other limit determined by the Company. The formula for determining a discretionary matching
contribution, if any, shall be set by the Company prior to the beginning of each Plan Year, and the
Administrator shall notify the designated Participants of such formula prior to the beginning of
each Plan Year. An eligible Participant must be actively employed on the last day of the Plan Year
in order to receive a matching contribution for such Plan Year.

7

 

ARTICLE IV

ACCOUNTS

4.1 Participant Accounts.

     The Administrator shall establish and maintain an Account for each Participant under the
Plan. A Participant’s Account shall be credited as follows:

     (a) As soon as administratively practicable following the end of each applicable pay period,
the Administrator shall credit the Participant’s Account with an amount equal to the Salary the
Participant elected to defer;

     (b) As soon as administratively practicable after each Bonus or partial Bonus would have been
paid, the Administrator shall credit the Participant’s Account with an amount equal to the Bonus
the Participant elected to defer;

     (c) As soon as administratively practicable after the last day of the Plan Year or such other
time or times as the Administrator may determine, the Administrator shall credit the Participant’s
Account with an amount equal to the Company contribution, if any, applicable in accordance with
Section 3.2;

4.2 Investment Elections.

     (a) The Administrator, in its sole and absolute discretion, may provide each Participant with
a list of investment Funds and the Participant may designate, in a manner specified by the
Administrator, one or more Funds in which his or her Account will be deemed to be invested for
purposes of determining the amount of Investment Returns to be credited to the Account. The
Administrator, from time to time, in its sole and absolute discretion, may select a
commercially-available fund to constitute the Fund actually selected, which shall be used to
determine the Investment Return to be credited to Participants’ Accounts under Subsection (c)
below.

     (b) A Participant may specify that all or any one percent (1%) multiple of his or her Account
be deemed to be invested in one or more of the Funds, subject to such limitations and conditions as
the Administrator may specify. A Participant may change the designation made under this Section
4.2(b) in such manner and at such time or times as the Administrator shall permit. If a Participant
fails to elect a Fund under this Section, or if the Administrator does not provide Participants
with a list of Funds pursuant to this Section, then the Participant’s Account shall be deemed to be
invested in a Fund chosen by the Administrator and communicated to Participants from time to time.

     (c) Each Participant’s Account may be divided into separate subaccounts (“investment fund
subaccounts”) corresponding to the deemed investment Funds elected by the Participant pursuant to
Subsection (b) above. As of each business day, a Participant’s Account shall be adjusted for deemed
earnings (and losses) in an amount equal to that determined by

8

 

multiplying the balance credited to each applicable investment fund subaccount as of the close of
the prior business day by the Investment Return for the corresponding Fund.

9

 

ARTICLE V

VESTING

5.1 Account.

     (a) Compensation Deferrals. A Participant’s Account attributable to Compensation
deferred by a Participant pursuant to the terms of this Plan, as adjusted for any deemed earnings
and losses credited to the Participant’s Account under Section 4.2(c) with respect to such
deferrals, shall be one hundred percent (100%) vested at all times.

     (b) Company Contributions. The value of a Participant’s Account attributable to any
Company contributions pursuant to Section 3.2 shall vest at such time or times as the Board shall
specify in connection with any such contributions. Unless otherwise specified by the Board, a
Participant shall be one hundred percent (100%) vested in such Company contributions, as adjusted
for any deemed earnings and losses credited to the Participant’s Account under Section 4.2(c) with
respect to such Company contributions.

10

 

ARTICLE VI

RABBI TRUST

6.1 Establishment of Rabbi Trust.

     As described in the Preamble to the Plan, the Company has established the Rabbi Trust, which
will be used in connection with the Plan.

6.2 Duties of Trustee of Rabbi Trust.

     The Trustee shall manage, invest and reinvest the Rabbi Trust as provided in the Trust
Agreement. The Trustee shall collect the income on the Rabbi Trust, and make distributions
therefrom, all as provided in this Plan and in the Trust Agreement.

6.3 Contributions to Rabbi Trust.

     While the Plan remains in effect, the Company shall make contributions to the Rabbi Trust at
least once each quarter. As soon as administratively practicable after the close of each Plan
quarter, the Company shall make an additional contribution to the Rabbi Trust to the extent that
previous contributions to the Rabbi Trust for the current Plan quarter are less than the total of
the Compensation deferrals made by each Participant plus Company contributions, if any, accrued as
of the close of the current Plan quarter.

11

 

ARTICLE VII

DISTRIBUTIONS

7.1 Distribution of Deferred Compensation .

     (a) Separation from Service.

          (1) Default Form of Distribution. In the event a Participant incurs a separation from
service (as defined in Section 409A) for any reason, including (without limitation) death,
retirement or disability, the Participant’s Distributable Amount shall be paid to the Participant
(or to his or her Beneficiary, as applicable) in a single lump-sum cash payment on the
Participant’s Payment Commencement Date.

          (2) Optional Forms of Distribution. Notwithstanding the forgoing, a Participant may
elect, in the time and manner described below, one of the following optional forms of distribution
commencing as of the Participant’s Payment Commencement Date:

          (i) twenty (20) quarterly installments,

          (ii) forty (40) quarterly installments, or

          (iii) sixty (60) quarterly installments.

          (3) Initial Distribution Election. An Eligible Employee may make an initial election
regarding his or her form of distribution by completing a written or electronic form approved by
and filed with the Administrator within the Initial Election Period. For Employees who were
Eligible Employees prior to January 1, 2005, a distribution election made prior to January 1, 2005
shall be treated as made during the Initial Election Period. Such election shall remain in effect
with respect to future Plan Years unless and until changed in accordance with this Section and
shall become irrevocable as of each December 31 with respect to any Compensation deferred and
Company contributions credited to the Participant’s Account for the next succeeding Plan Year
(subject to adjustment for deemed earnings and losses pursuant to Section 4.2(c)).

          (4) Distribution Election by Plan Year. A Participant may, when making his or her
Compensation deferral election for a particular Plan Year, make an election regarding the form of
distribution with respect to Compensation deferred and any Company contributions to be credited to
the Participant’s Account for such Plan Year (subject to adjustment for deemed earnings and losses
pursuant to Section 4.2(c)), by completing a written or electronic form approved by and filed with
the Administrator. Such an election shall remain in effect with respect to future Plan Years unless
and until changed in accordance with this Section and shall become irrevocable as of each December
31 with respect to any Compensation deferred and Company contributions credited to the
Participant’s Account for the next succeeding Plan Year (subject to adjustment for deemed earnings
and losses pursuant to Section 4.2(c)).

12

 

          (5) Change in Distribution Election. A Participant may, at any time, make a
subsequent election to change the form of distribution with respect to his or her entire
Account
or the entire portion of his or her Account attributable to Compensation deferred and Company
contributions credited to the Participant’s Account for a particular Plan Year (subject to
adjustment for deemed earnings and losses pursuant to Section 4.2(c)), by completing a
written
or electronic form approved by and filed with the Administrator; provided, however, that:

          (i) such election shall not take effect until twelve (12) months after the date
on which the election is made, such that, if the Participant experiences a Distribution
Event within twelve months of the date the election is made, the election shall not be
effective and the Participant’s Distributable Amount with respect to such Plan Year(s)
shall be paid in accordance with the Participant’s prior election(s) if the Participant has
a valid election in effect with respect to such Plan Year(s) or, in the absence thereof, in
accordance with the Plan’s default provision under Section 7.1(a)(1);

          (ii) the first payment under such election must be at least paid five (5) years
after the date it otherwise would have been paid (provided that installment payments shall
be treated as a single payment, such that payment under the new election must be made or
begin at least five (5) years after the date the first installment otherwise would have
been paid); and

          (iii) no more than one such change in distribution election may be made by a
Participant with respect to each Plan Year’s deferrals and contributions.

          (6) Notwithstanding anything to contrary herein, if the Participant’s Account Balance is
Twenty-Five Thousand Dollars ($25,000) or less on the Participant’s Payment Commencement Date, the
Account Balance shall automatically be distributed in the form of a cash lump sum on the
Participant’s Payment Commencement Date.

          (7) If the Participant’s Distributable Amount is paid in installments, the Participant’s
Account shall continue to be adjusted monthly for deemed earnings and losses pursuant to Section
4.2(c), and the installment amount shall be adjusted annually to reflect gains and losses, until
all amounts credited to his or her Account under the Plan have been distributed.

          (6) Amounts payable pursuant to this Section shall be subject to the limitation on
payout under Section 7.4.

     (b) Death While Receiving Benefits. If the Participant is in pay status at the
time of death, his or her Beneficiary shall be paid the remaining quarterly installments as they
come due.

7.2 Scheduled In-Service Withdrawals.

     (a) Scheduled In-Service Withdrawals. When making his or her Compensation
deferral election for a particular Plan Year, a Participant may elect a “Scheduled In-Service
Withdrawal,” which means the distribution, as of a specified date prior to separation from

13

 

service, of the entire portion of his or her Account attributable to Compensation deferred and
Company contributions credited to his or her Account for such Plan Year, (subject to adjustment for
deemed earnings and losses pursuant to Section 4.2(c)), subject to the following restrictions:

          (1) A Participant’s Scheduled In-Service Withdrawal election must specify a payment date at
least three (3) years after the first day of the Plan Year to which the election applies.

          (2) A Participant’s Scheduled In-Service Withdrawal election shall be made by completing a
written or electronic form approved by and filed with the Administrator.

          (3) The amount payable to a Participant in connection with a Scheduled In-Service Withdrawal
shall be determined as of the last business day of the calendar month coincident with or
immediately preceding the month of the Scheduled In-Service Withdrawal date.

          (4) A Participant may, at least one (1) year prior to a Scheduled In-Service Withdrawal date,
elect to change his or her Scheduled In-Service Withdrawal date to a date that is at least five (5)
years later; provided, however, that such change shall not become effective until twelve (12)
months after the date the election is made. Only one such change may be made with respect to each
Plan Year’s deferrals and contributions.

          (5) Subject to Section 7.4, payment of a Scheduled In-Service Withdrawal shall be made in a
single lump sum on the first business day coincident with or immediately following the Scheduled
In-Service Withdrawal date.

          (6) A Participant’s Scheduled In-Service Withdrawal election shall become void and of no
effect upon the Participant’s separation from service with the Company for any reason before such
Scheduled In-Service Withdrawal date. In such event, the distribution provisions of Section 7.1
shall apply.

          (7) A Participant’s Scheduled In-Service Withdrawal election shall remain in effect until
changed or terminated in accordance with this Section. With respect to each succeeding Plan Year,
the effect of such continuing election is that the Participant will be deemed to have elected a
Scheduled In-Service Withdrawal date with respect to Compensation deferred and any Company
contributions credited to the Participant’s Account for such Plan Year (subject to adjustment for
deemed earnings and losses pursuant to Section 4.2(c)) that is exactly one year later than the
Participant’s Scheduled In-Service Withdrawal date with respect to the prior Plan Year, which
deemed election shall become irrevocable as of each December 31 with respect to the succeeding Plan
Year.

7.3 Unforeseeable Emergency.

     (a) Determination of Unforeseeable Emergency. The Administrator, in its sole and
absolute discretion, may accelerate the date of distribution of a Participant’s Account upon the
request of a Participant who has experienced an Unforeseeable Emergency, in accordance with
applicable law. “Unforeseeable Emergency” shall mean a severe financial hardship resulting

14

 

from (1) an illness or accident of the Participant or his or her spouse or dependent (as defined in
Section 152(a) of the Code); (2) loss of the Participant’s property due to casualty; or (3) other
similar extraordinary and unforeseeable circumstances arising as a result of events beyond the
control of the Participant. The Administrator shall determine whether an accelerated distribution
on account of an Unforeseeable Emergency is permitted based on the relevant facts and circumstances
of each case and in accordance with applicable law.

     (b) Amount of Distribution Permitted. Any distribution on account of an Unforeseeable
Emergency shall be limited to the amount reasonably necessary to satisfy the Participant’s
emergency need (which may include amounts necessary to pay any Federal, state or local income taxes
or penalties reasonably anticipated to result from the distribution).

     (c) Source and Form of Distribution. Unless the Administrator, in its sole and
absolute discretion, determines otherwise, a distribution pursuant to this Section of less than the
Participant’s entire interest in the Plan shall be made pro rata from all of his or her deemed
investment Funds. Distributions shall be made in a single cash lump sum as soon as administratively
practicable after the Administrator approves the Participant’s request.

7.4 Section 162(m) Limitation.

     If the Administrator reasonably anticipates that all or any portion of any payment of benefits
under this Article VII to a Participant would not be deductible for federal income tax purposes by
the Company (or the applicable Participating Employer) because of a limitation under Code Section
162(m) on the total amount of the Participant’s deductible compensation, the following shall apply:

     (a) Payment of the non-deductible amount shall be deferred until the earliest date at which
the Company reasonably anticipates that the deduction of the payment will not be limited or
eliminated by application of Section 162(m); and

     (b) Adjustment for deemed earnings and losses shall continue to be applied under Section
4.2(c) during the period of deferral under this Section 7.4.

15

 

ARTICLE VIII

ADMINISTRATION

8.1 Administrator.

     The Company shall be the Administrator with the sole responsibility for the administration of
the Plan. The Administrator may delegate to any person or entity any powers or duties of the
Administrator under the Plan. To the extent of any such delegation, the delegatee shall become
responsible for administration of the Plan, and references to the Administrator shall apply instead
to the delegatee.

8.2 Powers and Duties of the Administrator.

     (a) The Administrator, on behalf of the Participants and their Beneficiaries, shall
enforce the Plan in accordance with its terms and shall have all powers as may be necessary to
discharge its duties hereunder, including, but not by way of limitation, the following:

          (1) To select the funds to be the Funds in accordance with Section 3.3 hereof;

          (2) To construe and interpret the Plan, decide all questions of eligibility, determine the
status and rights of Eligible Employees, and determine the amount, manner and time of payment of
any benefits hereunder;

          (3) To amend, modify, suspend or terminate the Plan in accordance with Section 9.4;

          (4) To receive from Eligible Employees such information as shall be necessary for
the proper administration of the Plan;

          (5) To compute and certify the amount and kind of benefits payable to Participants and their
Beneficiaries and to direct the Trustee as to the distribution of Plan assets;

          (6) To maintain all records that may be necessary for the administration of the
Plan;

          (7) To provide for the disclosure of all information and the filing or provision of all
reports and statements to Participants, Beneficiaries or governmental agencies as shall be required
by law;

          (8) To make and publish such rules for the regulation of the Plan and procedures for the
administration of the Plan as are not inconsistent with the terms hereof;

          (9) To appoint or employ individuals or agents to assist in the administration of the Plan;
and

16

 

          (10) To defend and initiate any lawsuit on behalf of the Plan or the Participants if the
Administrator deems it reasonably necessary to protect the Plan or the Participants.

     (b) The Administrator shall have full discretion to construe and interpret the terms and
provisions of this Plan, which interpretation or construction shall be final and binding on all
parties, including but not limited to the Company and any Participant or Beneficiary.

8.3 Expenses and Indemnity.

     (a) The Administrator is authorized at the expense of the Company to employ such legal counsel
as it may deem advisable to assist in the performance of its duties hereunder. Expenses and fees in
connection with the administration of the Plan shall be paid by the Company.

     (b) To the extent permitted by applicable law, the Company shall indemnify and save harmless
the Board and any delegate of the Company who is an employee of the Company against any and all
expenses, liabilities and claims, including legal fees to defend against such liabilities and
claims arising out of their discharge in good faith of responsibilities under or incident to the
Plan, other than expenses and liabilities arising out of willful misconduct or gross negligence.
This indemnity shall not preclude such further indemnities as may be available under insurance
purchased by the Company or provided by the Company under any bylaw, agreement or otherwise, as
such indemnities are permitted under state law.

8.4 Account Statements.

     Under procedures established by the Administrator, a Participant shall receive a statement
(which may be in electronic form) with respect to such Participant’s Account on a quarterly or
other periodic basis, no less frequently than annually.

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ARTICLE IX

MISCELLANEOUS

9.1 Unsecured General Creditor.

     Participants and their Beneficiaries, heirs, successors, and assigns shall have no legal or
equitable rights, claims, or interests in any specific property or assets of the Company. No assets
of the Company shall be held in any way as collateral security for the fulfilling of the
obligations of the Company under this Plan. Any and all of the Company’s assets shall be, and
remain, the general unpledged, unrestricted assets of the Company. The Company’s obligation under
the Plan shall be merely that of an unfunded and unsecured promise of the Company to pay money in
the future, and the rights of the Participants and Beneficiaries shall be no greater than those of
unsecured general creditors.

9.2 Restriction Against Assignment.

     All amounts payable hereunder shall be paid only to the person or persons designated by the
Plan and not to any other person or corporation. No part of a Participant’s Account shall be liable
for the debts, contracts, or engagements of any Participant, his or her Beneficiary, or successors
in interest, nor shall a Participant’s Account be subject to execution by levy, attachment, or
garnishment or by any other legal or equitable proceeding, nor shall any such person have any right
to alienate, anticipate, commute, pledge, encumber, or assign any benefits or payments hereunder in
any manner whatsoever. If any Participant, Beneficiary or successor in interest is adjudicated
bankrupt or purports to anticipate, alienate, sell, transfer, assign, pledge, encumber or charge
any distribution or payment from the Plan, voluntarily or involuntarily, the Company, in its sole
and absolute discretion, may cancel such distribution or payment (or any part thereof) to or for
the benefit of such Participant, Beneficiary or successor in interest in such manner as the Company
shall direct.

9.3 Withholding.

     There shall be deducted from each payment made under the Plan, all taxes which, in the
determination of the Administrator, are required to be withheld in respect to such payment. The
Administrator shall have the right to reduce any payment by the amount of cash sufficient to
provide the amount of said taxes.

9.4 Amendment, Modification, Suspension or Termination.

     This Plan may be amended, modified, suspended or terminated in whole or in part, by No
amendment, modification, suspension or termination shall have any retroactive effect to reduce any
amounts allocated to a Participant’s Account, provided that a termination or suspension of the Plan
or any Plan amendment or modification that will significantly increase costs to the Company shall
be approved by the Board. In the event that this Plan is terminated, the timing of the disposition
of the amounts credited to a Participant’s Account shall occur in accordance with Section 7.1,
subject to earlier distribution in accordance with applicable law.

18

 

9.5 Governing Law.

     To the extent not preempted by federal law, this Plan shall be construed, governed and
administered in accordance with the laws of the State of Connecticut.

9.6 Receipt or Release.

     Any payment to a Participant or the Participant’s Beneficiary in accordance with the
provisions of the Plan shall, to the extent thereof, be in full satisfaction of all claims against
the Plan, the Administrator and the Company. The Administrator may require such Participant or
Beneficiary, as a condition precedent to such payment, to execute a receipt and release to such
effect, to be submitted prior to or within 60 days after the Participant’s Payment Commencement
Date.

9.7 Payments on Behalf of Persons Under Incapacity.

     (a) In the event the Administrator determines that any Participant or Beneficiary receiving or
entitled to receive benefits under the Plan is incompetent or unable to care for his affairs, and
in the absence of the appointment of a legal guardian of the property of the incompetent, payments
due under the Plan, unless prior claim thereto has been made by a duly qualified guardian,
committee, or other legal representative, may be made to the spouse, parent, sibling, adult child,
or other person, including a hospital or other institution, deemed by the Administrator to have
incurred or to be liable for expenses on behalf of such incompetent.

     (b) In the absence of the appointment of a legal guardian of the property of a minor, any
payment due under the Plan may be paid to such adult or adults as in the opinion of the
Administrator have assumed the custody and principal support of such minor.

     (c) Notwithstanding the provisions of subsection (a) or (b), the Administrator, in its sole
discretion, may require that a legal guardian for the property of an incompetent or a minor be
appointed, before authorizing any payment hereunder to or for the benefit of such minor or
incompetent.

     (d) Payments made pursuant to this Section shall be a complete discharge of any
obligation arising under the Plan with respect to such payments.

19

 

9.8 No Employment Rights.

     Participation in this Plan shall not confer upon any person any right to be employed by the
Company or any Participating Employer or any other right not expressly provided hereunder.

9.9 Headings, etc. Not Part of Agreement.

     Headings and subheadings in this Plan are inserted for convenience of reference only and are
not to be considered in the construction of the provisions hereof.

9.10 Compliance with Section 409A.

     This Plan is intended and shall be construed to comply with Section 409A and shall be
amended by the Company, retroactive to the effective date if appropriate, in the event that the
Company determines such amendment is necessary to comply with Section 409A.

9.11 Claim and Appeal Procedure.

     (a) In the event that a Participant or Beneficiary wishes to dispute the benefits payable
under this Plan, a written claim must be made to the Administrator. The Administrator shall review
the written claim and provide a written decision within thirty (30) days of receipt of the claim.
If the claim is denied, in whole or in part, the decision shall include the specific reasons for
such denial, reference to the provisions of the Plan upon which the denial is based, any additional
material or information necessary to perfect the claim and any additional steps that must be taken
to request a review of the denied claim.

     (b) If the claimant desires a review of a denied claim, the claimant must submit a written
request to the Administrator within thirty (30) days of receipt of the denial. The request may
include any additional materials the claimant wishes the Administrator to consider. The
Administrator, in its sole discretion, shall review the request and provide a written decision
within thirty (30) days of receipt of such request. If the decision is a denial, it shall state the
specific reasons for the denial and reference to specific provisions of the Plan upon which the
decision is based.

[signature page follows]

20

 

     IN WITNESS WHEREOF, the Company has caused this document to be executed by
its duly authorized officer on this               day of December, 2008.

	 	 	 	 	 
	 	GARTNER, INC.

 	 
	 	By:  	 	 
	 	 	Title:  	SVP and General Counsel 	 

21

 

	 	 	 	 	 

     IN WITNESS WHEREOF, the Company has caused this document to be executed by its duly authorized
officer on this 19th day of December, 2008.

	 	 	 	 	 
	 	GARTNER, INC.

 	 
	 	By:	
 	 
	 	 	Lewis G. Schwartz 	 
	 	 	Title:  	SVP and General Counsel 	 
	 

22

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