2005 Stock Incentive Plan, as amended



 EXHIBIT 4.4 
 DDI CORP. 
 2005 STOCK INCENTIVE PLAN, AS AMENDED 
 1. Establishment, Purpose, and Types of Awards 
 DDi Corp. (the “Company”) hereby establishes this equity-based incentive compensation plan to be known as the “DDi Corp. 2005 Stock Incentive Plan” (hereinafter referred to as the “Plan”), in order to provide
incentives and awards to select employees and directors of the Company and its Affiliates. 
 The Plan permits the granting of the following
types of awards (“Awards”), according to the Sections of the Plan listed here: 
  

			
	 Section 6
	  	Options
	 Section 7
	  	Share Appreciation Rights
	 Section 8
	  	Restricted Shares, Restricted Share Units, and Unrestricted Shares
	 Section 9
	  	Deferred Share Units
	 Section 10
	  	Performance Awards

 The Plan is not intended to affect and shall not affect any stock options, equity-based
compensation, or other benefits that the Company or its Affiliates may have provided, or may separately provide in the future pursuant to any agreement, plan, or program that is independent of this Plan. 







 2. Defined Terms 
 Terms in the Plan that begin with an initial capital letter have the defined meaning set forth in Appendix A, unless defined elsewhere in this Plan or the context of their use clearly indicates a
different meaning. 
 3. Shares Subject to the Plan 
 Subject to the provisions of Section 13 of the Plan, the maximum number of Shares that the Company may issue for all Awards is 3,142,857 Shares, provided that the Company shall not issue more than 1,071,429
Shares pursuant to Awards in a form other than Options and SARs, and shall not make additional awards under the DDi Corp. 2003 Management Equity Incentive Plan. For all Awards, the Shares issued pursuant to the Plan may be authorized but unissued
Shares, or Shares that the Company has reacquired or otherwise holds in treasury. 
 Shares that are subject to an Award that for any reason
expires, is forfeited, is cancelled, or becomes unexercisable, and Shares that are for any other reason not paid or delivered under the Plan shall again, except to the extent prohibited by Applicable Law, be available for subsequent Awards under the
Plan. Notwithstanding the foregoing, but subject to adjustments pursuant to Section 13 below, the number of Shares that are available for ISO Awards shall be determined, to the extent required under applicable tax laws, by reducing the number
of Shares designated in the preceding paragraph by the number of Shares issued pursuant to Awards, provided that any Shares that are issued under the Plan and forfeited back to the Plan shall be available for issuance pursuant to
future ISO Awards. 
 4. Administration 
 (a) General. The Committee shall administer the Plan in accordance with its terms, provided that the Board may act in lieu of the Committee on any matter. The Committee shall hold meetings at such times and places as it may determine
and shall make such rules and regulations for the conduct of its business as it deems advisable. In the absence of a duly appointed Committee or if the Board otherwise chooses to act in lieu of the Committee, the Board shall function as the
Committee for all purposes of the Plan. 
 (b) Committee Composition. The Board shall appoint the members of the Committee. If and to
the extent permitted by Applicable Law, the Committee may authorize one or more Reporting Persons (or other officers) to make Awards to Eligible Persons who are not Reporting Persons (or other officers whom the Committee has specifically authorized
to make Awards). The Board may at any time appoint additional members to the Committee, remove and replace members of the Committee with or without Cause, and fill vacancies on the Committee however caused. 
 (c) Powers of the Committee. Subject to the provisions of the Plan, the Committee shall have the authority, in its sole discretion: 
 (i) to determine Eligible Persons to whom Awards shall be granted from time to time and the number of Shares, units, or SARs to be covered
by each Award; 
 (ii) to determine, from time to time, the Fair Market Value of Shares; 
 (iii) to determine, and to set forth in Award Agreements, the terms and conditions of all Awards, including any applicable exercise or
purchase price, the installments and conditions under which an Award shall become vested (which may be based on performance), terminated, expired, cancelled, or replaced, and the circumstances for vesting acceleration or waiver of forfeiture
restrictions, and other restrictions and limitations; 
  

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 (iv) to approve the forms of Award Agreements and all other documents, notices and
certificates in connection therewith which need not be identical either as to type of Award or among Participants; 
 (v) to
construe and interpret the terms of the Plan and any Award Agreement, to determine the meaning of their terms, and to prescribe, amend, and rescind rules and procedures relating to the Plan and its administration; and 
 (vi) in order to fulfill the purposes of the Plan and without amending the Plan, modify, cancel, or waive the Company’s rights with
respect to any Awards, to adjust or to modify Award Agreements for changes in Applicable Law, and to recognize differences in foreign law, tax policies, or customs; and 
 (vii) to make all other interpretations and to take all other actions that the Committee may consider necessary or advisable to administer
the Plan or to effectuate its purposes. 
 Subject to Applicable Law and the restrictions set forth in the Plan, the Committee may delegate
administrative functions to individuals who are Reporting Persons, officers, or Employees of the Company or its Affiliates. 
 (d)
Deference to Committee Determinations. The Committee shall have the discretion to interpret or construe ambiguous, unclear, or implied (but omitted) terms in any fashion it deems to be appropriate in its sole discretion, and to make any
findings of fact needed in the administration of the Plan or Award Agreements. The Committee’s prior exercise of its discretionary authority shall not obligate it to exercise its authority in a like fashion thereafter. The Committee’s
interpretation and construction of any provision of the Plan, or of any Award or Award Agreement, shall be final, binding, and conclusive. The validity of any such interpretation, construction, decision or finding of fact shall not be given de novo
review if challenged in court, by arbitration, or in any other forum, and shall be upheld unless clearly arbitrary or capricious. 
 (e) No
Liability; Indemnification. Neither the Board nor any Committee member, nor any Person acting at the direction of the Board or the Committee, shall be liable for any act, omission, interpretation, construction or determination made in good faith
with respect to the Plan, any Award or any Award Agreement. The Company and its Affiliates shall pay or reimburse any member of the Committee, as well as any Director, Employee, or Consultant who takes action in connection with the Plan, for all
expenses incurred with respect to the Plan, and to the full extent allowable under Applicable Law shall indemnify each and every one of them for any claims, liabilities, and costs (including reasonable attorney’s fees) arising out of their good
faith performance of duties under the Plan. The Company and its Affiliates may obtain liability insurance for this purpose. 
 5. Eligibility

 (a) General Rule. The Committee may grant ISOs only to Employees (including officers who are Employees) of the Company or an
Affiliate that is a “parent corporation” or “subsidiary corporation” within the meaning of Section 424 of the Code, and may grant all other Awards to any Eligible Person. A Participant who has been granted an Award may be
granted an additional Award or Awards if the Committee shall so determine, if such person is otherwise an Eligible Person and if otherwise in accordance with the terms of the Plan. 
 (b) Grant of Awards. Subject to the express provisions of the Plan, the Committee shall determine from the class of Eligible Persons those
individuals to whom Awards under the Plan may be granted, the number of Shares subject to each Award, the price (if any) to be paid for the Shares or the Award and, in the case of Performance Awards, in addition to the matters addressed in
Section 10 below, the specific objectives, goals and performance criteria that further define the Performance Award. Each Award shall be evidenced by an Award Agreement signed by the Company and, if required by the Committee, by the
Participant. The Award Agreement shall set forth the material terms and conditions of the Award established by the Committee. 
  

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 (c) Limits on Awards. During any calendar year, no Participant may receive Options and SARs that
relate to more than 357,143 Shares. The Committee will adjust this limitation pursuant to Section 13 below. 
 (d) Replacement
Awards. Subject to Applicable Laws (including any associated Shareholder approval requirements), the Committee may, in its sole discretion and upon such terms as it deems appropriate, require as a condition of the grant of an Award to a
Participant that the Participant surrender for cancellation some or all of the Awards that have previously been granted to the Participant under this Plan or otherwise. An Award that is conditioned upon such surrender may or may not be the same type
of Award, may cover the same (or a lesser or greater) number of Shares as such surrendered Award, may have other terms that are determined without regard to the terms or conditions of such surrendered Award, and may contain any other terms that the
Committee deems appropriate. In the case of Options, these other terms may not involve an Exercise Price that is lower than the Exercise Price of the surrendered Option unless the Company’s shareholders approve the grant itself or the program
under which the grant is made pursuant to the Plan. 
 6. Option Awards 
 (a) Types; Documentation. The Committee may in its discretion grant ISOs to any Employee and Non-ISOs to any Eligible Person, and shall evidence
any such grants in an Award Agreement that is delivered to the Participant. Each Option shall be designated in the Award Agreement as an ISO or a Non-ISO, and the same Award Agreement may grant both types of Options. At the sole discretion of the
Committee, any Option may be exercisable, in whole or in part, immediately upon the grant thereof, or only after the occurrence of a specified event, or only in installments, which installments may vary. Options granted under the Plan may contain
such terms and provisions not inconsistent with the Plan that the Committee shall deem advisable in its sole and absolute discretion. 
 (b)
ISO $100,000 Limitation. To the extent that the aggregate Fair Market Value of Shares with respect to which Options designated as ISOs first become exercisable by a Participant in any calendar year (under this Plan and any other plan of the
Company or any Affiliate) exceeds $100,000, such excess Options shall be treated as Non-ISOs. For purposes of determining whether the $100,000 limit is exceeded, the Fair Market Value of the Shares subject to an ISO shall be determined as of the
Grant Date. In reducing the number of Options treated as ISOs to meet the $100,000 limit, the most recently granted Options shall be reduced first. In the event that Section 422 of the Code is amended to alter the limitation set forth therein,
the limitation of this Section 6(b) shall be automatically adjusted accordingly. 
 (c) Term of Options. Each Award Agreement
shall specify a term at the end of which the Option automatically expires, subject to earlier termination provisions contained in Section 6(h) hereof; provided, that, the term of any Option may not exceed ten years from the Grant Date. In the
case of an ISO granted to an Employee who is a Ten Percent Holder on the Grant Date, the term of the ISO shall not exceed five years from the Grant Date. 
 (d) Exercise Price. The exercise price of an Option shall be determined by the Committee in its discretion and shall be set forth in the Award Agreement, provided that (i) if an ISO is granted to an
Employee who on the Grant Date is a Ten Percent Holder, the per Share exercise price shall not be less than 110% of the Fair Market Value per Share on the Grant Date, and (ii) for all other Options, such per Share exercise price shall not be
less than 100% of the Fair Market Value per Share on the Grant Date. 
 (e) Exercise of Option. The Committee shall in its sole
discretion determine the times, circumstances, and conditions under which an Option shall be exercisable, and shall set them forth in the Award Agreement. The Committee shall have the discretion to determine whether and to what extent the vesting of
Options shall be tolled during any unpaid leave of absence; provided, however, that in the absence of such determination, vesting of Options shall be tolled during any such leave approved by the Company. 
  

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 (f) Minimum Exercise Requirements. An Option may not be exercised for a fraction of a Share. The
Committee may require in an Award Agreement that an Option be exercised as to a minimum number of Shares, provided that such requirement shall not prevent a Participant from purchasing the full number of Shares as to which the Option is then
exercisable. 
 (g) Methods of Exercise. Prior to its expiration pursuant to the terms of the applicable Award Agreement, each
Option may be exercised, in whole or in part (provided that the Company shall not be required to issue fractional shares), by delivery of written notice of exercise to the secretary of the Company accompanied by the full exercise price of the Shares
being purchased. In the case of an ISO, the Committee shall determine the acceptable methods of payment on the Grant Date and it shall be included in the applicable Award Agreement. The methods of payment that the Committee may in its discretion
accept or commit to accept in an Award Agreement include: 
 (i) cash or check payable to the Company (in U.S. dollars);

 (ii) other Shares that (A) are owned by the Participant who is purchasing Shares pursuant to an Option, (B) have
a Fair Market Value on the date of surrender equal to the aggregate exercise price of the Shares as to which the Option is being exercised, (C) were not acquired by such Participant pursuant to the exercise of an Option, unless such Shares have
been owned by such Participant for at least six months or such other period as the Committee may determine, (D) are all, at the time of such surrender, free and clear of any and all claims, pledges, liens and encumbrances, or any restrictions
which would in any manner restrict the transfer of such shares to or by the Company (other than such restrictions as may have existed prior to an issuance of such Shares by the Company to such Participant), and (E) are duly endorsed for
transfer to the Company; 
 (iii) a cashless exercise program that the Committee may approve, from time to time in its
discretion, pursuant to which a Participant may concurrently provide irrevocable instructions (A) to such Participant’s broker or dealer to effect the immediate sale of the purchased Shares and remit to the Company, out of the sale
proceeds available on the settlement date, sufficient funds to cover the exercise price of the Option plus all applicable taxes required to be withheld by the Company by reason of such exercise, and (B) to the Company to deliver the
certificates for the purchased Shares directly to such broker or dealer in order to complete the sale; or 
 (iv) any
combination of the foregoing methods of payment. 
 The Company shall not be required to deliver Shares pursuant to the exercise of an Option
until payment of the full exercise price therefore is received by the Company. 
 (h) Termination of Continuous Service. The Committee
may establish and set forth in the applicable Award Agreement the terms and conditions on which an Option shall remain exercisable, if at all, following termination of a Participant’s Continuous Service. The Committee may waive or modify these
provisions at any time. To the extent that a Participant is not entitled to exercise an Option at the date of his or her termination of Continuous Service, or if the Participant (or other person entitled to exercise the Option) does not exercise the
Option to the extent so entitled within the time specified in the Award Agreement or below (as applicable), the Option shall terminate and the Shares underlying the unexercised portion of the Option shall revert to the Plan and become available for
future Awards. In no event may any Option be exercised after the expiration of the Option term as set forth in the Award Agreement. 
  

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 The following provisions shall apply to the extent an Award Agreement does not specify the terms and
conditions upon which an Option shall terminate when there is a termination of a Participant’s Continuous Service: 
 (i)
Termination other than Upon Disability or Death or for Cause. In the event of termination of a Participant’s Continuous Service (other than as a result of Participant’s death, disability, retirement or termination for Cause), the
Participant shall have the right to exercise an Option at any time within 90 days following such termination to the extent the Participant was entitled to exercise such Option at the date of such termination. 
 (ii) Disability. In the event of termination of a Participant’s Continuous Service as a result of his or her being Disabled,
the Participant shall have the right to exercise an Option at any time within one year following such termination to the extent the Participant was entitled to exercise such Option at the date of such termination. 
 (iii) Retirement. In the event of termination of a Participant’s Continuous Service as a result of Participant’s
retirement, the Participant shall have the right to exercise the Option at any time within six months following such termination to the extent the Participant was entitled to exercise such Option at the date of such termination. 
 (iv) Death. In the event of the death of a Participant during the period of Continuous Service since the Grant Date of an Option,
or within thirty days following termination of the Participant’s Continuous Service, the Option may be exercised, at any time within one year following the date of the Participant’s death, by the Participant’s estate or by a person
who acquired the right to exercise the Option by bequest or inheritance, but only to the extent the right to exercise the Option had vested at the date of death or, if earlier, the date the Participant’s Continuous Service terminated.

 (v) Cause. If the Committee determines that a Participant’s Continuous Service terminated due to Cause, the
Participant shall immediately forfeit the right to exercise any Option, and it shall be considered immediately null and void. 
 (i)
Reverse Vesting. The Committee in its sole and absolute discretion may allow a Participant to exercise unvested Options, in which case the Shares then issued shall be Restricted Shares having analogous vesting restrictions to the unvested
Options. 
 7. Share Appreciate Rights (SARs) 
 (a) Grants. The Committee may in its discretion grant Share Appreciation Rights to any Eligible Person, in any of the following forms: 
 (i) SARs related to Options. The Committee may grant SARs either concurrently with the grant of an Option or with respect to an
outstanding Option, in which case the SAR shall extend to all or a portion of the Shares covered by the related Option. An SAR shall entitle the Participant who holds the related Option, upon exercise of the SAR and surrender of the related Option,
or portion thereof, to the extent the SAR and related Option each were previously unexercised, to receive payment of an amount determined pursuant to Section 7(e) below. Any SAR granted in connection with an ISO will contain such terms as may
be required to comply with the provisions of Section 422 of the Code and the regulations promulgated thereunder. 
 (ii)
SARs Independent of Options. The Committee may grant SARs which are independent of any Option subject to such conditions as the Committee may in its discretion determine, which conditions will be set forth in the applicable Award Agreement.

 (iii) Limited SARs. The Committee may grant SARs exercisable only upon or in respect of a Change in Control or any
other specified event, and such limited SARs may relate to or operate in tandem or combination with or substitution for Options or other SARs, or on a stand-alone basis, and may be payable in cash or Shares based on the spread between the exercise
price of the SAR, and (A) a price based upon or equal to the Fair Market Value of the Shares during a specified period, at a specified time within a specified period before, after or including the date of such event, or (B) a price related
to consideration payable to Company’s shareholders generally in connection with the event. 
  

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 (b) Exercise Price. The per Share exercise price of an SAR shall be determined in the sole
discretion of the Committee, shall be set forth in the applicable Award Agreement, and shall be no less than 100% of the Fair Market Value of one Share. The exercise price of an SAR related to an Option shall be the same as the exercise price of the
related Option. The exercise price of an SAR shall be subject to the special rules on pricing contained in Sections 6(d) and 6(j) hereof. 
 (c) Exercise of SARs. Unless the Award Agreement otherwise provides, an SAR related to an Option will be exercisable at such time or times, and to the extent, that the related Option will be exercisable;
provided that the Award Agreement shall not, without the approval of the shareholders of the Company, provide for a vesting period for the exercise of the SAR that is more favorable to the Participant than the exercise period for the related Option.
An SAR may not have a term exceeding ten years from its Grant Date. An SAR granted independently of any other Award will be exercisable pursuant to the terms of the Award Agreement, but shall not, without the approval of the shareholders of the
Company, provide for a vesting period for the exercise of the SAR that is more favorable to the Participant than the exercise period for the related Option. Whether an SAR is related to an Option or is granted independently, the SAR may only be
exercised when the Fair Market Value of the Shares underlying the SAR exceeds the exercise price of the SAR. 
 (d) Effect on Available
Shares. To the extent that an SAR is exercised, only the actual number of delivered Shares (if any) will be charged against the maximum number of Shares that may be delivered pursuant to Awards under this Plan. The number of Shares subject to
the SAR and the related Option of the Participant will, however, be reduced by the number of underlying Shares as to which the exercise relates, unless the Award Agreement otherwise provides. All SARs are to be settled in shares of the
Company’s stock and shall be counted in full against the number of shares available for award under the Plan, regardless of the number of exercise gain shares issued upon settlement of the SARs. 
 (e) Payment. Upon exercise of an SAR related to an Option and the attendant surrender of an exercisable portion of any related Award, the
Participant will be entitled to receive payment of an amount determined by multiplying – 
 (i) the excess of the Fair
Market Value of a Share on the date of exercise of the SAR over the exercise price per Share of the SAR, by 
 (ii) the number
of Shares with respect to which the SAR has been exercised. 
 Notwithstanding the foregoing, an SAR granted independently of an Option
(i) may limit the amount payable to the Participant to a percentage, specified in the Award Agreement but not exceeding one-hundred percent (100%), of the amount determined pursuant to the preceding sentence, and (ii) shall be subject to
any payment or other restrictions that the Committee may at any time impose in its discretion, including restrictions intended to conform the SARs with Section 409A of the Code. 
 (f) Form and Terms of Payment. Subject to Applicable Law, the Committee may, in its sole discretion, settle the amount determined under
Section 7(e) above solely in cash, solely in Shares (valued at their Fair Market Value on the date of exercise of the SAR), or partly in cash and partly in Shares. In any event, cash shall be paid in lieu of fractional Shares. Absent a contrary
determination by the Committee, all SARs shall be settled in cash as soon as practicable after exercise. Notwithstanding the foregoing, the Committee may, in an Award Agreement, determine the maximum amount of cash or Shares or combination thereof
that may be delivered upon exercise of an SAR. 
  

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 (g) Termination of Employment or Consulting Relationship. The Committee shall establish and set
forth in the applicable Award Agreement the terms and conditions on which an SAR shall remain exercisable, if at all, following termination of a Participant’s Continuous Service. The provisions of Section 6(h) above shall apply to the
extent an Award Agreement does not specify the terms and conditions upon which an SAR shall terminate when there is a termination of a Participant’s Continuous Service. 
 8. Restricted Shares, Restricted Share Units, and Unrestricted Shares 
 (a) Grants. The
Committee may in its discretion grant restricted shares (“Restricted Shares”) to any Eligible Person and shall evidence such grant in an Award Agreement that is delivered to the Participant and that sets forth the number of Restricted
Shares, the purchase price for such Restricted Shares (if any), and the terms upon which the Restricted Shares may become vested. In addition, the Company may in its discretion grant the right to receive Shares after certain vesting requirements are
met (“Restricted Share Units”) to any Eligible Person and shall evidence such grant in an Award Agreement that is delivered to the Participant which sets forth the number of Shares (or formula, that may be based on future performance or
conditions, for determining the number of Shares) that the Participant shall be entitled to receive upon vesting and the terms upon which the Shares subject to a Restricted Share Unit may become vested. The Committee may condition any Award of
Restricted Shares or Restricted Share Units to a Participant on receiving from the Participant such further assurances and documents as the Committee may require to enforce the restrictions. In addition, the Committee may grant Awards hereunder in
the form of unrestricted shares (“Unrestricted Shares”), which shall vest in full upon the date of grant or such other date as the Committee may determine or which the Committee may issue pursuant to any program under which one or more
Eligible Persons (selected by the Committee in its discretion) elect to receive Unrestricted Shares in lieu of cash bonuses that would otherwise be paid. 
 (b) Vesting and Forfeiture. The Committee shall set forth in an Award Agreement granting Restricted Shares or Restricted Share Units, the terms and conditions under which the Participant’s interest in the
Restricted Shares or the Shares subject to Restricted Share Units will become vested and non-forfeitable. Except as set forth in the applicable Award Agreement or the Committee otherwise determines, upon termination of a Participant’s
Continuous Service for any other reason, the Participant shall forfeit his or her Restricted Shares and Restricted Share Units; provided that if a Participant purchases the Restricted Shares and forfeits them for any reason, the Company shall return
the purchase price to the Participant only if and to the extent set forth in an Award Agreement. 
 (c) Issuance of Restricted Shares
Prior to Vesting. The Company shall issue stock certificates that evidence Restricted Shares pending the lapse of applicable restrictions, and that bear a legend making appropriate reference to such restrictions. Except as set forth in the
applicable Award Agreement or the Committee otherwise determines, the Company or a third party that the Company designates shall hold such Restricted Shares and any dividends that accrue with respect to Restricted Shares pursuant to
Section 8(e) below. 
 (d) Issuance of Shares upon Vesting. As soon as practicable after vesting of a Participant’s
Restricted Shares (or Shares underlying Restricted Share Units) and the Participant’s satisfaction of applicable tax withholding requirements, the Company shall release to the Participant, free from the vesting restrictions, one Share for each
vested Restricted Share (or issue one Share free of the vesting restriction for each vested Restricted Share Unit), unless an Award Agreement provides otherwise. No fractional shares shall be distributed, and cash shall be paid in lieu thereof.

 (e) Dividends Payable on Vesting. Whenever Shares are released to a Participant under Section 8(d) above pursuant to
the vesting of Restricted Shares or the Shares underlying Restricted Share Units are issued to a Participant pursuant to Section 8(d) above, such Participant shall receive (unless otherwise provided in the Award Agreement), with respect to each
Share released or issued, an amount equal to any cash dividends (plus, in the discretion of the Committee, simple interest at a rate as the Committee may determine) and a number of Shares equal to any stock dividends, which were declared and paid to
the holders of Shares between the Grant Date and the date such Share is released or issued. 
  

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 (f) Section 83(b) Elections. A Participant may make an election under Section 83(b) of
the Code (the “Section 83(b) Election”) with respect to Restricted Shares. If a Participant who has received Restricted Share Units provides the Committee with written notice of his or her intention to make Section 83(b) Election with
respect to the Shares subject to such Restricted Share Units, the Committee may in its discretion convert the Participant’s Restricted Share Units into Restricted Shares, on a one-for-one basis, in full satisfaction of the Participant’s
Restricted Share Unit Award. The Participant may then make a Section 83(b) Election with respect to those Restricted Shares. Shares with respect to which a Participant makes a Section 83(b) Election shall not be eligible for deferral
pursuant to Section 9 below. 
 (g) Deferral Elections. At any time within the thirty-day period (or other shorter or longer
period that the Committee selects) in which a Participant who is a member of a select group of management or highly compensated employees (within the meaning of the Code) receives an Award of either Restricted Shares or Restricted Share Units, the
Committee may permit the Participant to irrevocably elect, on a form provided by and acceptable to the Committee, to defer the receipt of all or a percentage of the Shares that would otherwise be transferred to the Participant upon the vesting of
such Award. If the Participant makes this election, the Shares subject to the election, and any associated dividends and interest, shall be credited to an account established pursuant to Section 9 hereof on the date such Shares would otherwise
have been released or issued to the Participant pursuant to Section 8(d) above. 
 9. Deferred Share Units 
 (a) Elections to Defer. The Committee may permit any Eligible Person who is a Director, Consultant or member of a select group of management or
highly compensated employees (within the meaning of the Code) to irrevocably elect, on a form provided by and acceptable to the Committee (the “Election Form”), to forego the receipt of cash or other compensation (including the Shares
deliverable pursuant to any Award other than Restricted Shares for which a Section 83(b) Election has been made), and in lieu thereof to have the Company credit to an internal Plan account (the “Account”) a number of deferred share
units (“Deferred Share Units”) having a Fair Market Value equal to the Shares and other compensation deferred. These credits will be made at the end of each calendar month during which compensation is deferred. Each Election Form shall
take effect on the first day of the next calendar year (or on the first day of the next calendar month in the case of an initial election by a Participant who is first eligible to defer hereunder) after its delivery to the Company, subject to
Section 8(g) regarding deferral of Restricted Shares and Restricted Share Units and to Section 10(e) regarding deferral of Performance Awards, unless the Company sends the Participant a written notice explaining why the Election Form is
invalid within five business days after the Company receives it. Notwithstanding the foregoing sentence: (i) Election Forms shall be ineffective with respect to any compensation that a Participant earns before the date on which the Company
receives the Election Form, and (ii) the Committee may unilaterally make awards in the form of Deferred Share Units, regardless of whether or not the Participant foregoes other compensation. 
 (b) Vesting. Unless an Award Agreement expressly provides otherwise, each Participant shall be 100% vested at all times in any Shares subject to
Deferred Share Units. 
 (c) Issuances of Shares. The Company shall provide a Participant with one Share for each Deferred Share Unit
in five substantially equal annual installments that are issued before the last day of each of the five calendar years that end after the date on which the Participant’s Continuous Service terminates, unless – 
 (i) the Participant has properly elected a different form of distribution, on a form approved by the Committee, that permits the
Participant to select any combination of a lump sum and annual installments that are completed within ten years following termination of the Participant’s Continuous Service, and 
 (ii) the Company received the Participant’s distribution election form at the time the Participant elects to defer the receipt of
cash or other compensation pursuant to Section 9(a), provided that such election may be changed through any subsequent election that (i) is delivered to the Administrator at least one 

  

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year before the date on which distributions are otherwise scheduled to commence pursuant to the Participant’s election, and (ii) defers the
commencement of distributions by at least five years from the originally scheduled commencement date. 
 Fractional shares shall not be
issued, and instead shall be paid out in cash. 
 (d) Crediting of Dividends. Whenever Shares are issued to a Participant pursuant to
Section 9(c) above, such Participant shall also be entitled to receive, with respect to each Share issued, a cash amount equal to any cash dividends (plus simple interest at a rate of five percent per annum, or such other reasonable rate as the
Committee may determine), and a number of Shares equal to any stock dividends which were declared and paid to the holders of Shares between the Grant Date and the date such Share is issued. 
 (e) Emergency Withdrawals. In the event a Participant suffers an unforeseeable emergency within the contemplation of this Section and
Section 409A of the Code, the Participant may apply to the Company for an immediate distribution of all or a portion of the Participant’s Deferred Share Units. The unforeseeable emergency must result from a sudden and unexpected illness or
accident of the Participant, the Participant’s spouse, or a dependent (within the meaning of Section 152(a) of the Code) of the Participant, casualty loss of the Participant’s property, or other similar extraordinary and unforeseeable
conditions beyond the control of the Participant. Examples of purposes which are not considered unforeseeable emergencies include post-secondary school expenses or the desire to purchase a residence. In no event will a distribution be made to the
extent the unforeseeable emergency could be relieved through reimbursement or compensation by insurance or otherwise, or by liquidation of the Participant’s nonessential assets to the extent such liquidation would not itself cause a severe
financial hardship. The amount of any distribution hereunder shall be limited to the amount necessary to relieve the Participant’s unforeseeable emergency plus amounts necessary to pay taxes reasonably anticipated as a result of the
distribution. The Committee shall determine whether a Participant has a qualifying unforeseeable emergency and the amount which qualifies for distribution, if any. The Committee may require evidence of the purpose and amount of the need, and may
establish such application or other procedures as it deems appropriate. 
 (f) Unsecured Rights to Deferred Compensation.
A Participant’s right to Deferred Share Units shall at all times constitute an unsecured promise of the Company to pay benefits as they come due. The right of the Participant or the Participant’s duly-authorized transferee to
receive benefits hereunder shall be solely an unsecured claim against the general assets of the Company. Neither the Participant nor the Participant’s duly-authorized transferee shall have any claim against or rights in any specific assets,
shares, or other funds of the Company. 
 10. Performance Awards 
 (a) Performance Units. Subject to the limitations set forth in paragraph (c) hereof, the Committee may in its discretion grant Performance Units to any Eligible Person and shall evidence such grant in an
Award Agreement that is delivered to the Participant which sets forth the terms and conditions of the Award. 
 (b) Performance
Compensation Awards. Subject to the limitations set forth in paragraph (c) hereof, the Committee may, at the time of grant of a Performance Unit, designate such Award as a “Performance Compensation Award” in order that such Award
constitutes “qualified performance-based compensation” under Code Section 162(m), in which event the Committee shall have the power to grant such Performance Compensation Award upon terms and conditions that qualify it as
“qualified performance-based compensation” within the meaning of Code Section 162(m). With respect to each such Performance Compensation Award, the Committee shall establish, in writing within the time required under Code
Section 162(m), a “Performance Period,” “Performance Measure(s)”, and “Performance Formula(e)” (each such term being hereinafter defined). 
 A Participant shall be eligible to receive payment in respect of a Performance Compensation Award only to the extent that the Performance Measure(s) for
such Award is achieved and the Performance Formula(e) as applied against such Performance Measure(s) determines that all or some portion of such Participant’s Award 

  

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has been earned for the Performance Period. As soon as practicable after the close of each Performance Period, the Committee shall review and certify in
writing whether, and to what extent, the Performance Measure(s) for the Performance Period have been achieved and, if so, determine and certify in writing the amount of the Performance Compensation Award to be paid to the Participant and, in so
doing, may use negative discretion to decrease, but not increase, the amount of the Award otherwise payable to the Participant based upon such performance. 
 (c) Limitations on Awards. The maximum Performance Unit Award and the maximum Performance Compensation Award that any one Participant may receive for any one Performance Period shall not together exceed 357,143
Shares and $1,000,000 in cash. The Committee shall have the discretion to provide in any Award Agreement that any amounts earned in excess of these limitations will either be credited as Deferred Share Units, or as deferred cash compensation under a
separate plan of the Company (provided in the latter case that such deferred compensation either bears a reasonable rate of interest or has a value based on one or more predetermined actual investments). Any amounts for which payment to the
Participant is deferred pursuant to the preceding sentence shall be paid to the Participant in a future year or years not earlier than, and only to the extent that, the Participant is either not receiving compensation in excess of these limits for a
Performance Period, or is not subject to the restrictions set forth under Section 162(b) of the Code. 
 (d) Definitions.

 (i) “Performance Formula” means, for a Performance Period, one or more objective formulas or standards
established by the Committee for purposes of determining whether or the extent to which an Award has been earned based on the level of performance attained or to be attained with respect to one or more Performance Measure(s). Performance Formulae
may vary from Performance Period to Performance Period and from Participant to Participant and may be established on a stand-alone basis, in tandem or in the alternative. 
 (ii) “Performance Measure” means one or more of the following selected by the Committee to measure Company, Affiliate, and/or
business unit performance for a Performance Period, whether in absolute or relative terms (including, without limitation, terms relative to a peer group or index): basic, diluted, or adjusted earnings per share; sales or revenue; earnings before
interest, taxes, and other adjustments (in total or on a per share basis); basic or adjusted net income; returns on equity, assets, capital, revenue or similar measure; economic value added; working capital; total shareholder return; and product
development, product market share, research, licensing, litigation, human resources, information services, mergers, acquisitions, sales of assets of Affiliates or business units. Each such measure shall be, to the extent applicable, determined in
accordance with generally accepted accounting principles as consistently applied by the Company (or such other standard applied by the Committee) and, if so determined by the Committee, and in the case of a Performance Compensation Award, to the
extent permitted under Code Section 162(m), adjusted to omit the effects of extraordinary items, gain or loss on the disposal of a business segment, unusual or infrequently occurring events and transactions and cumulative effects of changes in
accounting principles. Performance Measures may vary from Performance Period to Performance Period and from Participant to Participant, and may be established on a stand-alone basis, in tandem or in the alternative. 
 (iii) “Performance Period” means one or more periods of time (of not less than one fiscal year of the Company), as the Committee
may designate, over which the attainment of one or more Performance Measure(s) will be measured for the purpose of determining a Participant’s rights in respect of an Award. 
 (e) Deferral Elections. At any time prior to the date that is at least six months before the close of a Performance Period (or shorter or longer
period that the Committee selects) with respect to an Award of either Performance Units or Performance Compensation, the Committee may permit a Participant who is a member of a select group of management or highly compensated employees (within the
meaning of the Code) to irrevocably elect, on a form provided by and acceptable to the Committee, to defer the receipt of all or a percentage of the cash or Shares that would otherwise be transferred to the Participant upon the vesting of such


  

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Award. If the Participant makes this election, the cash or Shares subject to the election, and any associated interest and dividends, shall be credited to an
account established pursuant to Section 9 hereof on the date such cash or Shares would otherwise have been released or issued to the Participant pursuant to Section 10(a) or Section 10(b) above. 
 11. Taxes 
 (a) General. As a condition
to the issuance or distribution of Shares pursuant to the Plan, the Participant (or in the case of the Participant’s death, the person who succeeds to the Participant’s rights) shall make such arrangements as the Company may require for
the satisfaction of any applicable federal, state, local or foreign withholding tax obligations that may arise in connection with the Award and the issuance of Shares. The Company shall not be required to issue any Shares until such obligations are
satisfied. If the Committee allows the withholding or surrender of Shares to satisfy a Participant’s tax withholding obligations, the Committee shall not allow Shares to be withheld in an amount that exceeds the minimum statutory withholding
rates for federal and state tax purposes, including payroll taxes. 
 (b) Default Rule for Employees. In the absence of any other
arrangement, an Employee shall be deemed to have directed the Company to withhold or collect from his or her cash compensation an amount sufficient to satisfy such tax obligations from the next payroll payment otherwise payable after the date of the
exercise of an Award. 
 (c) Special Rules. In the case of a Participant other than an Employee (or in the case of an Employee where
the next payroll payment is not sufficient to satisfy such tax obligations, with respect to any remaining tax obligations), in the absence of any other arrangement and to the extent permitted under Applicable Law, the Participant shall be deemed to
have elected to have the Company withhold from the Shares or cash to be issued pursuant to an Award that number of Shares having a Fair Market Value determined as of the applicable Tax Date (as defined below) or cash equal to the amount required to
be withheld. For purposes of this Section 11, the Fair Market Value of the Shares to be withheld shall be determined on the date that the amount of tax to be withheld is to be determined under the Applicable Law (the “Tax Date”).

 (d) Surrender of Shares. If permitted by the Committee, in its discretion, a Participant may satisfy the minimum applicable tax
withholding and employment tax obligations associated with an Award by surrendering Shares to the Company (including Shares that would otherwise be issued pursuant to the Award) that have a Fair Market Value determined as of the applicable Tax Date
equal to the amount required to be withheld. In the case of Shares previously acquired from the Company that are surrendered under this Section 11, such Shares must have been owned by the Participant for more than six months on the date of
surrender (or such longer period of time the Company may in its discretion require). 
 (e) Income Taxes and Deferred Compensation.
Participants are solely responsible and liable for the satisfaction of all taxes and penalties that may arise in connection with Awards (including any taxes arising under Section 409A of the Code), and the Company shall not have any obligation
to indemnify or otherwise hold any Participant harmless from any or all of such taxes. The Administrator shall have the discretion to organize any deferral program, to require deferral election forms, and to grant or to unilaterally modify any Award
in a manner that (i) conforms with the requirements of Section 409A of the Code with respect to compensation that is deferred and that vests after December 31, 2004, (ii) that voids any Participant election to the extent it would
violate Section 409A of the Code, and (iii) for any distribution election that would violate Section 409A of the Code, to make distributions pursuant to the Award at the earliest to occur of a distribution event that is allowable
under Section 409A of the Code or any distribution event that is both allowable under Section 409A of the Code and is elected by the Participant, subject to any valid second election to defer, provided that the Administrator permits second
elections to defer in accordance with Section 409A(a)(4)(C). The Administrator shall have the sole discretion to interpret the requirements of the Code, including Section 409A, for purposes of the Plan and all Awards. 
  

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 12. Non-Transferability of Awards 
 (a) General. Except as set forth in this Section 12, or as otherwise approved by the Committee, Awards may not be sold, pledged, assigned,
hypothecated, transferred or disposed of in any manner other than by will or by the laws of descent or distribution. The designation of a beneficiary by a Participant will not constitute a transfer. An Award may be exercised, during the lifetime of
the holder of an Award, only by such holder, the duly-authorized legal representative of a Participant who is Disabled, or a transferee permitted by this Section 12. 
 (b) Limited Transferability Rights. Notwithstanding anything else in this Section 12, the Committee may in its discretion provide in an Award Agreement that an Award other than an ISO may be
transferred, on such terms and conditions as the Committee deems appropriate, either (i) by instrument to the Participant’s “Immediate Family” (as defined below), (ii) by instrument to an inter vivos or testamentary trust
(or other entity) in which the Award is to be passed to the Participant’s designated beneficiaries, or (iii) by gift to charitable institutions. Any transferee of the Participant’s rights shall succeed and be subject to all of the
terms of this Award Agreement and the Plan. “Immediate Family” means any child, stepchild, grandchild, parent, stepparent, grandparent, spouse, former spouse, sibling, niece, nephew, mother-in-law, father-in-law, son-in-law,
daughter-in-law, brother-in-law, or sister-in-law, and shall include adoptive relationships. 
 13. Adjustments Upon Changes in Capitalization, Merger
or Certain Other Transactions 
 (a) Changes in Capitalization. The Committee shall equitably adjust the number of Shares
covered by each outstanding Award, and the number of Shares that have been authorized for issuance under the Plan but as to which no Awards have yet been granted or that have been returned to the Plan upon cancellation, forfeiture, or expiration of
an Award, as well as the price per Share covered by each such outstanding Award, to reflect any increase or decrease in the number of issued Shares resulting from a stock-split, reverse stock-split, stock dividend, combination, recapitalization or
reclassification of the Shares, or any other increase or decrease in the number of issued Shares effected without receipt of consideration by the Company. In the event of any such transaction or event, the Committee may provide in substitution for
any or all outstanding Options under the Plan such alternative consideration (including securities of any surviving entity) as it may in good faith determine to be equitable under the circumstances and may require in connection therewith the
surrender of all Options so replaced. In any case, such substitution of securities shall not require the consent of any person who is granted Options pursuant to the Plan. 
 Except as expressly provided herein or in an Award Agreement, if the Company issues for consideration shares of stock of any class, or securities
convertible into shares of stock of any class, the issuance shall not affect, and no adjustment by reason thereof shall be required to be made with respect to, the number or price of Shares subject to any Award. 
 (b) Dissolution or Liquidation. In the event of the dissolution or liquidation of the Company other than as part of a Change of Control, each
Award will terminate immediately prior to the consummation of such action, subject to the ability of the Committee to exercise any discretion authorized in the case of a Change in Control. 
 (c) Change in Control. In the event of a Change in Control, the Committee may in its sole and absolute discretion and authority, without obtaining
the approval or consent of the Company’s shareholders or any Participant with respect to his or her outstanding Awards, take one or more of the following actions: 
 (i) arrange for or otherwise provide that each outstanding Award shall be assumed or a substantially similar award shall be substituted by
a successor corporation or a parent or subsidiary of such successor corporation (the “Successor Corporation”); 
  

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 (ii) accelerate the vesting of Awards so that Awards shall vest (and, to the extent
applicable, become exercisable) as to the Shares that otherwise would have been unvested and provide that repurchase rights of the Company with respect to Shares issued upon exercise of an Award shall lapse as to the Shares subject to such
repurchase right; 
 (iii) arrange or otherwise provide for the payment of cash or other consideration to Participants in
exchange for the satisfaction and cancellation of outstanding Awards; or 
 (iv) make such other modifications, adjustments or
amendments to outstanding Awards or this Plan as the Committee deems necessary or appropriate, subject however to the terms of Section 15(a) below. 
 Notwithstanding the above, in the event a Participant holding an Award assumed or substituted by the Successor Corporation in a Change in Control is Involuntarily Terminated by the Successor Corporation in connection
with, or within 12 months following consummation of, the Change in Control, then any assumed or substituted Award held by the terminated Participant at the time of termination shall accelerate and become fully vested (and exercisable in full in the
case of Options and SARs), and any repurchase right applicable to any Shares shall lapse in full, unless an Award Agreement provides for a more restrictive acceleration or vesting schedule or more restrictive limitations on the lapse of repurchase
rights or otherwise places additional restrictions, limitations and conditions on an Award. The acceleration of vesting and lapse of repurchase rights provided for in the previous sentence shall occur immediately prior to the effective date of the
Participant’s termination, unless an Award Agreement provides otherwise. 
 (d) Certain Distributions. In the event of any
distribution to the Company’s shareholders of securities of any other entity or other assets (other than dividends payable in cash or stock of the Company) without receipt of consideration by the Company, the Committee may, in its discretion,
appropriately adjust the price per Share covered by each outstanding Award to reflect the effect of such distribution. 
 14. Time of Granting
Awards. 
 The date of grant (“Grant Date”) of an Award shall be the date on which the Committee makes the determination
granting such Award or such other date as is determined by the Committee, provided that in the case of an ISO, the Grant Date shall be the later of the date on which the Committee makes the determination granting such ISO or the date of commencement
of the Participant’s employment relationship with the Company. 
 15. Modification of Awards and Substitution of Options. 
 (a) Modification, Extension, and Renewal of Awards. Within the limitations of the Plan, the Committee may modify an Award to accelerate the rate at
which an Option or SAR may be exercised (including without limitation permitting an Option or SAR to be exercised in full without regard to the installment or vesting provisions of the applicable Award Agreement or whether the Option or SAR is at
the time exercisable, to the extent it has not previously been exercised), to accelerate the vesting of any Award, to extend or renew outstanding Awards, or to accept the cancellation of outstanding Awards to the extent not previously exercised.
However, the Committee may not (without shareholder approval) cancel an outstanding option that is underwater for the purpose of reissuing the option to the Participant at a lower exercise price or granting a replacement award of a different type.
Notwithstanding the foregoing provision, no modification of an outstanding Award shall materially and adversely affect such Participant’s rights thereunder, unless either the Participant provides written consent or there is an express Plan
provision permitting the Committee to act unilaterally to make the modification. 
  

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 (b) Substitution of Options. Notwithstanding any inconsistent provisions or limits under the Plan,
in the event the Company or an Affiliate acquires (whether by purchase, merger or otherwise) all or substantially all of outstanding capital stock or assets of another corporation or in the event of any reorganization or other transaction qualifying
under Section 424 of the Code, the Committee may, in accordance with the provisions of that Section, substitute Options for options under the plan of the acquired company provided (i) the excess of the aggregate fair market value of the
shares subject to an option immediately after the substitution over the aggregate option price of such shares is not more than the similar excess immediately before such substitution and (ii) the new option does not give persons additional
benefits, including any extension of the exercise period. 
 16. Term of Plan. 
 The Plan shall continue in effect for a term of ten (10) years from its effective date as determined under Section 20 below, unless the Plan is
sooner terminated under Section 17 below. 
 17. Amendment and Termination of the Plan. 
 (a) Authority to Amend or Terminate. Subject to Applicable Laws, the Board may from time to time amend, alter, suspend, discontinue, or terminate
the Plan. 
 (b) Effect of Amendment or Termination. No amendment, suspension, or termination of the Plan shall materially and
adversely affect Awards already granted unless either it relates to an adjustment pursuant to Section 13 above, or it is otherwise mutually agreed between the Participant and the Committee, which agreement must be in writing and signed by the
Participant and the Company. Notwithstanding the foregoing, the Committee may amend the Plan to eliminate provisions which are no longer necessary as a result of changes in tax or securities laws or regulations, or in the interpretation thereof.

 18. Conditions Upon Issuance of Shares. 
 Notwithstanding any other provision of the Plan or any agreement entered into by the Company pursuant to the Plan, the Company shall not be obligated, and shall have no liability for failure, to issue or deliver any Shares under the Plan
unless such issuance or delivery would comply with Applicable Law, with such compliance determined by the Company in consultation with its legal counsel. 
 19. Reservation of Shares. 
 The Company, during the term of this Plan, will at all times reserve and keep available
such number of Shares as shall be sufficient to satisfy the requirements of the Plan. Neither the Company nor the Committee shall, without shareholder approval, allow for a repricing within the meaning of the federal securities laws applicable to
proxy statement disclosures. 
 20. Effective Date. 
 This Plan shall become effective on the date of its approval by the Board; provided that this Plan shall be submitted to the Company’s shareholders for approval, and if not approved by the shareholders in
accordance with Applicable Laws (as determined by the Committee in its discretion) within one year from the date of approval by the Board, this Plan and any Awards shall be null, void, and of no force and effect. Awards granted under this Plan
before approval of this Plan by the shareholders shall be granted subject to such approval, and no Shares shall be distributed before such approval. 
 21.
Controlling Law. 
 All disputes relating to or arising from the Plan shall be governed by the internal substantive laws (and
not the laws of conflicts of laws) of the State of Delaware, to the extent not preempted by United States federal law. If any provision of this Plan is held by a court of competent jurisdiction to be invalid and unenforceable, the remaining
provisions shall continue to be fully effective. 
  

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 22. Laws And Regulations. 
 (a) U.S. Securities Laws. This Plan, the grant of Awards, and the exercise of Options and SARs under this Plan, and the obligation of the Company to sell or deliver any of its securities (including, without
limitation, Options, Restricted Shares, Restricted Share Units, Deferred Share Units, and Shares) under this Plan shall be subject to all Applicable Law. In the event that the Shares are not registered under the Securities Act of 1933, as amended
(the “Act”), or any applicable state securities laws prior to the delivery of such Shares, the Company may require, as a condition to the issuance thereof, that the persons to whom Shares are to be issued represent and warrant in writing
to the Company that such Shares are being acquired by him or her for investment for his or her own account and not with a view to, for resale in connection with, or with an intent of participating directly or indirectly in, any distribution of such
Shares within the meaning of the Act, and a legend to that effect may be placed on the certificates representing the Shares. 
 (b) Other
Jurisdictions. To facilitate the making of any grant of an Award under this Plan, the Committee may provide for such special terms for Awards to Participants who are foreign nationals or who are employed by the Company or any Affiliate outside
of the United States of America as the Committee may consider necessary or appropriate to accommodate differences in local law, tax policy or custom. The Company may adopt rules and procedures relating to the operation and administration of this
Plan to accommodate the specific requirements of local laws and procedures of particular countries. Without limiting the foregoing, the Company is specifically authorized to adopt rules and procedures regarding the conversion of local currency,
taxes, withholding procedures and handling of stock certificates which vary with the customs and requirements of particular countries. The Company may adopt sub-plans and establish escrow accounts and trusts as may be appropriate or applicable to
particular locations and countries. 
 23. No Shareholder Rights. Neither a Participant nor any transferee of a Participant shall have any
rights as a shareholder of the Company with respect to any Shares underlying any Award until the date of issuance of a share certificate to a Participant or a transferee of a Participant for such Shares in accordance with the Company’s
governing instruments and Applicable Law. Prior to the issuance of Shares pursuant to an Award, a Participant shall not have the right to vote or to receive dividends or any other rights as a shareholder with respect to the Shares underlying the
Award, notwithstanding its exercise in the case of Options and SARs. No adjustment will be made for a dividend or other right that is determined based on a record date prior to the date the stock certificate is issued, except as otherwise
specifically provided for in this Plan. 
 24. No Employment Rights. The Plan shall not confer upon any Participant any right to continue an
employment, service or consulting relationship with the Company, nor shall it affect in any way a Participant’s right or the Company’s right to terminate the Participant’s employment, service, or consulting relationship at any time,
with or without Cause. 
  

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 DDi Corp. 
 2005 Stock Incentive Plan 
  

 Appendix A: Definitions 
  

 As used in the Plan, the following definitions shall apply: 
 “Affiliate” means, with respect to any Person (as defined below), any other Person that directly or indirectly controls or is controlled by or under common control with such Person. For the
purposes of this definition, “control,” when used with respect to any Person, means the possession, direct or indirect, of the power to direct or cause the direction of the management and policies of such Person or the power to elect
directors, whether through the ownership of voting securities, by contract or otherwise; and the terms “affiliated,” “controlling” and “controlled” have meanings correlative to the foregoing. 
 “Applicable Law” means the legal requirements relating to the administration of options and share-based plans under applicable
U.S. federal and state laws, the Code, any applicable stock exchange or automated quotation system rules or regulations, and the applicable laws of any other country or jurisdiction where Awards are granted, as such laws, rules, regulations and
requirements shall be in place from time to time. 
 “Award” means any award made pursuant to the Plan, including
awards made in the form of an Option, an SAR, a Restricted Share, a Restricted Share Unit, an Unrestricted Share, a Deferred Share Unit and a Performance Award, or any combination thereof, whether alternative or cumulative, authorized by and granted
under this Plan. 
 “Award Agreement” means any written document setting forth the terms of an Award that has been
authorized by the Committee. The Committee shall determine the form or forms of documents to be used, and may change them from time to time for any reason. 
 “Board” means the Board of Directors of the Company. 
 “Cause”
for termination of a Participant’s Continuous Service will exist if the Participant is terminated from employment or other service with the Company or an Affiliate for any of the following reasons: (i) the Participant’s willful
failure to substantially perform his or her duties and responsibilities to the Company or deliberate violation of a material Company policy; (ii) the Participant’s commission of any material act or acts of fraud, embezzlement, dishonesty,
or other willful misconduct; (iii) the Participant’s material unauthorized use or disclosure of any proprietary information or trade secrets of the Company or any other party to whom the Participant owes an obligation of nondisclosure as a
result of his or her relationship with the Company; or (iv) Participant’s willful and material breach of any of his or her obligations under any written agreement or covenant with the Company. 
 The Committee shall in its discretion determine whether or not a Participant is being terminated for Cause. The Committee’s determination shall,
unless arbitrary and capricious, be final and binding on the Participant, the Company, and all other affected persons. The foregoing definition does not in any way limit the Company’s ability to terminate a Participant’s employment or
consulting relationship at any time, and the term “Company” will be interpreted herein to include any Affiliate or successor thereto, if appropriate. 
  

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 “Change in Control” means any of the following: 
 (I) any Person is or becomes the Beneficial Owner, directly or indirectly, of securities of the Company representing 50% or more of the combined voting
power of the Company’s then outstanding securities, excluding any Person who becomes such a Beneficial Owner in connection with a transaction described in paragraph (III)(B) below; 
 (II) the following individuals cease for any reason to constitute a majority of the number of directors then serving: individuals who, on the date
hereof, constitute the Board and any new director (other than a director whose initial assumption of office is in connection with an actual or threatened election contest, including but not limited to a consent solicitation, relating to the election
of directors of the Company) whose appointment or election by the Board or nomination for election by the Company’s shareholders was approved or recommended by the affirmative vote of a majority of the directors then still in office who either
were directors on the date hereof or whose appointment, election or nomination for election was previously so approved or recommended (“Continuing Directors”); 
 (III) there is consummated a merger or consolidation of the Company or any direct or indirect subsidiary of the Company with any other corporation, other than a merger or consolidation in which (A) the
Company’s shareholders receive or retain voting common stock in the Company or the surviving or resulting corporation in such transaction on the same pro rata basis as their relative percentage ownership of Company common stock immediately
preceding such transaction and a majority of the entire Board of the Company are or continue to be Continuing Directors following such transaction, or (B) the Company’s shareholders receive voting common stock in the corporation which
becomes the public parent of the Company or its successor in such transaction on the same pro rata basis as their relative percentage ownership of Company common stock immediately preceding such transaction and a majority of the entire Board of such
parent corporation are Continuing Directors immediately following such transaction; 
 (IV) the sale of any one or more Company subsidiaries,
businesses or assets not in the ordinary course of business and pursuant to a shareholder approved plan for the complete liquidation or dissolution of the Company; or 
 (V) there is consummated any sale of assets, businesses or subsidiaries of the Company which, at the time of the consummation of the sale, (x) together represent 50% or more of the total book value of the
Company’s assets on a consolidated basis or (y) generated 50% or more of the Company’s pre-tax income on a consolidated basis in either of the two fully completed fiscal years of the Company immediately preceding the year in which the
Change in Control occurs; provided, however, that, in either case, any such sale shall not constitute a Change in Control if such sale constitutes a Rule 13e-3 transaction and at least 60% of the combined voting power of the voting securities of the
purchasing entity are owned by shareholders of the Company in substantially the same proportions as their ownership of the Company immediately prior to such sale. 
 Notwithstanding the foregoing, a “Change in Control” shall not be deemed to have occurred by virtue of the consummation of any transaction or series of integrated transactions immediately following which the
record holders of the common stock of the Company immediately prior to such transaction or series of transactions continue to have substantially the same proportionate ownership in an entity which owns all or substantially all of the assets of the
Company immediately following such transaction or series of transactions. 
 “Code” means the U.S. Internal Revenue
Code of 1986, as amended. 
  

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 “Committee” means one or more committees or subcommittees of the Board appointed
by the Board to administer the Plan in accordance with Section 4 above. With respect to any decision involving an Award intended to satisfy the requirements of Section 162(m) of the Code, the Committee shall consist of two or more
Directors of the Company who are “outside directors” within the meaning of Section 162(m) of the Code. With respect to any decision relating to a Reporting Person, the Committee shall consist of two or more Directors who are
“non-employee directors” within the meaning of Rule 16b-3. 
 “Company” means DDi Corp., a Delaware
corporation; provided, however, that in the event the Company reincorporates to another jurisdiction, all references to the term “Company” shall refer to the Company in such new jurisdiction. 
 “Consultant” means any person, including an advisor, who is engaged by the Company or any Affiliate to render services and is
compensated for such services. 
 “Continuous Service” means the absence of any interruption or termination of
service as an Employee, Director, or Consultant. Continuous Service shall not be considered interrupted in the case of: (i) sick leave; (ii) military leave; (iii) any other leave of absence approved by the Committee, provided that
such leave is for a period of not more than 90 days, unless reemployment upon the expiration of such leave is guaranteed by contract or statute, or unless provided otherwise pursuant to Company policy adopted from time to time; (iv) changes in
status from Director to advisory director or emeritus status; or (iv) in the case of transfers between locations of the Company or between the Company, its Affiliates or their respective successors. Changes in status between service as an
Employee, Director, and a Consultant will not constitute an interruption of Continuous Service. 
 “Deferred Share
Units” mean Awards pursuant to Section 9 of the Plan. 
 “Director” means a member of the Board, or
a member of the board of directors of an Affiliate. 
 “Disabled” means a condition under which a Participant —

 (a) is unable to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which
can be expected to result in death or can be expected to last for a continuous period of not less than 12 months, or 
 (b) is, by reason of
any medically determinable physical or mental impairment which can be expected to result in death or can be expected to last for a continuous period of not less than 12 months, received income replacement benefits for a period of not less than 3
months under an accident or health plan covering employees of the Company. 
 “Eligible Person” means any Consultant,
Director or Employee and includes non-Employees to whom an offer of employment has been extended. 
 “Employee” means
any person whom the Company or any Affiliate classifies as an employee (including an officer) for employment tax purposes. The payment by the Company of a director’s fee to a Director shall not be sufficient to constitute “employment”
of such Director by the Company. 
 “Exchange Act” means the Securities Exchange Act of 1934, as amended. 

“Fair Market Value” means, as of any date (the “Determination Date”) means: (i) the closing price of a Share on
the New York Stock Exchange or the American Stock Exchange (collectively, the “Exchange”), on the Determination Date, or, if shares were not traded on the Determination Date, then on 

  

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the nearest preceding trading day during which a sale occurred; or (ii) if such stock is not traded on the Exchange but is quoted on NASDAQ or a
successor quotation system, (A) the last sales price (if the stock is then listed as a National Market Issue under The Nasdaq National Market System) or (B) the mean between the closing representative bid and asked prices (in all other
cases) for the stock on the Determination Date as reported by NASDAQ or such successor quotation system; or (iii) if such stock is not traded on the Exchange or quoted on NASDAQ but is otherwise traded in the over-the-counter, the mean between
the representative bid and asked prices on the Determination Date; or (iv) if subsections (i)-(iii) do not apply, the fair market value established in good faith by the Board. 
 “Grant Date” has the meaning set forth in Section 14 of the Plan. 
 “Incentive Share Option or ISO” hereinafter means an Option intended to qualify as an incentive stock option within the meaning
of Section 422 of the Code, as designated in the applicable Award Agreement. 
 “Involuntary Termination” means
termination of a Participant’s Continuous Service under the following circumstances occurring on or after a Change in Control: (i) termination without Cause by the Company or an Affiliate or successor thereto, as appropriate; or
(ii) voluntary termination by the Participant within 60 days following (A) a material reduction in the Participant’s job responsibilities, provided that neither a mere change in title alone nor reassignment to a substantially similar
position shall constitute a material reduction in job responsibilities; (B) an involuntary relocation of the Participant’s work site to a facility or location more than 50 miles from the Participant’s principal work site at the time
of the Change in Control; or (C) a material reduction in Participant’s total compensation other than as part of an reduction by the same percentage amount in the compensation of all other similarly-situated Employees, Directors or
Consultants. 
 “Non-ISO” means an Option not intended to qualify as an ISO, as designated in the applicable Award
Agreement. 
 “Option” means any stock option granted pursuant to Section 6 of the Plan. 
 “Participant” means any holder of one or more Awards, or the Shares issuable or issued upon exercise of such Awards, under the
Plan. 
 “Performance Awards” mean Performance Units and Performance Compensation Awards granted pursuant to
Section 10. 
 “Performance Compensation Awards” mean Awards granted pursuant to Section 10(b) of the Plan.

 “Performance Unit” means Awards granted pursuant to Section 10(a) of the Plan which may be paid in cash, in
Shares, or such combination of cash and Shares as the Committee in its sole discretion shall determine.  
 “Person” means any natural person, association, trust, business trust, cooperative, corporation, general partnership, joint venture, joint-stock company, limited partnership, limited liability company, real estate
investment trust, regulatory body, governmental agency or instrumentality, unincorporated organization or organizational entity. 
 “Plan” means this DDi Corp. 2005 Stock Incentive Plan. 
  

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 “Reporting Person” means an officer, Director, or greater than ten percent
shareholder of the Company within the meaning of Rule 16a-2 under the Exchange Act, who is required to file reports pursuant to Rule 16a-3 under the Exchange Act. 
 “Restricted Shares” mean Shares subject to restrictions imposed pursuant to Section 8 of the Plan. 
 “Restricted Share Units” mean Awards pursuant to Section 8 of the Plan. 
 “Rule 16b-3” means Rule 16b-3 promulgated under the Exchange Act, as amended from time to time, or any successor provision. 
 “SAR” or “Share Appreciation Right” means Awards granted pursuant to Section 7 of the Plan. 
 “Share” means a share of common stock of the Company, as adjusted in accordance with Section 13 of the Plan. 
 “Ten Percent Holder” means a person who owns stock representing more than ten percent (10%) of the combined voting power of all classes of stock of the Company or any Affiliate.

 “Unrestricted Shares” mean Shares awarded pursuant to Section 8 of the Plan. 
  

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