**EXHIBIT 10.10**

**MAGMA DESIGN AUTOMATION, INC.**

**2001 EMPLOYEE STOCK PURCHASE PLAN**

(Originally Adopted by the Board on May 4, 2001.) 

(Composite Plan Document incorporating Amendments adopted by the Board on 

January 26, 2004, March 24,2006, September 20, 2006, and January 23, 2007.) 

**MAGMA DESIGN AUTOMATION, INC.**

**2001 EMPLOYEE STOCK PURCHASE PLAN**

SECTION 1**Purpose Of The Plan.**

The Plan was adopted by the Board on May 4, 2001, effective as of the date of the IPO. The purpose of the Plan is to provide EligibleEmployees with an opportunity to increase their proprietary interest in the success of the Company by purchasing Stock from the Company on favorable terms and to pay for such purchases through payroll deductions. The Plan is intended to qualifyunder section 423 of the Code, although the Company makes no undertaking nor representation to maintain such qualification. In addition, this Plan document authorizes the grant of rights to purchase Stock under a Non-423(b) Plan which do notqualify under Section 423(b) of the Code, pursuant to rules, procedures or sub-plans adopted by the Committee designed to achieve tax, securities law or other Company objectives in particular locations outside the United States. 

SECTION 2**Definitions.**

(a) “AccumulationPeriod” means a three-month period during which contributions may be made toward the purchase of Stock under the Plan, as determined pursuant to Section 4(b). 

(b) “Board” means the Board of Directors of the Company, as constituted from time to time. “Code” means the Internal Revenue Code of 1986, as amended. 

(c) “Affiliate” shall mean any Subsidiary or other entity in which the Company has an equity interest. 

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

(e) “Code Section 423(b) Plan” means an employee stock purchase plan which is designed to meet the requirements set forth in Section 423(b) of the Code, as amended. The provisions of the CodeSection 423(b) Plan shall be construed, administered and enforced in accordance with Section 423(b). 

(f) “Committee”means a committee of the Board, as described in Section 3. 

(g) “Company” means Magma Design Automation, Inc., a DelawareCorporation. 

(h) “Compensation” means (i) the compensation paid in cash to a Participant by a Participating Company,including salaries, wages, incentive compensation, bonuses, overtime pay and shift premiums, plus (ii) any pre-tax contributions made by the Participant under section 401(k) or 125 of the Code. “Compensation” shall exclude allnon-cash items, commissions, moving or relocation allowances, cost-of-living equalization payments, car allowances, tuition reimbursements, imputed income attributable to cars or life insurance, severance pay, fringe benefits, contributions orbenefits received under employee benefit plans, income attributable to the exercise of stock options, and similar items. The Committee shall determine whether a particular item is included in Compensation. 

(i) “Corporate Reorganization” means: 

(i) The consummation of a merger or consolidation of the Company with or into another entity, or any other corporate reorganization; 

(ii) or the sale, transfer or other disposition of all or substantially all of the Company’s assets or the complete liquidation or dissolution ofthe Company. 

(j) “Eligible Employee” means any employee of a Participating Company whose customary employment is for more thanfive months per calendar year and for more than 20 hours per week. 

The foregoing notwithstanding, an individual shall not beconsidered an Eligible Employee if his or her participation in the Plan is prohibited by the law of any country which has jurisdiction over him or her or if he or she is subject to a collective bargaining agreement that does not provide forparticipation in the Plan. 

(k) “Exchange Act” means the Securities Exchange Act of 1934, as amended. 

(l) “Fair Market Value” means the market price of Stock, determined by the Committee as follows: 

(i) If Stock was traded on The Nasdaq National Market on the date in question, then the Fair Market Value shall be equal to the last-transaction pricequoted for such date by The Nasdaq National Market; 

(ii) If Stock was traded on a stock exchange on the date in question, then the FairMarket Value shall be equal to the closing price reported by the applicable composite transactions report for such date; or (iii) If none of the foregoing provisions is applicable, then the Fair Market Value shall be determined by the Committeein good faith on such basis as it deems appropriate. 

Whenever possible, the determination of Fair Market Value by the Committee shall bebased on the prices reported in the Wall Street Journal or as reported directly to the Company by Nasdaq or a stock exchange. Such determination shall be conclusive and binding on all persons. 

(m) “IPO” means the initial offering of Stock to the public pursuant to a registration statement filed by the Company with the Securities andExchange Commission. 

(n) “Non-423(b) Plan” means an employee stock purchase plan which does not meet the requirements set forthin Section 423(b) of the Code, as amended. 

(o) “Offering Period” means a 24-month period with respect to which the right topurchase Stock may be granted under the Plan, as determined pursuant to Section 4(a). 

 

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(p) “Participant” means an Eligible Employee who elects to participate in the Plan, as providedin Section 4(c). 

(q) “Participating Company” means (i) the Company and (ii) each present or future Affiliate orSubsidiary designated by the Committee as a Participating Company. The Committee may determine that employees of any Affiliate or Subsidiary shall participate in the Non-423(b) Plan. 

(r) “Plan” means this Magma Design Automation, Inc. 2001 Employee Stock Purchase Plan, as it may be amended from time to time, which includes aCode Section 423(b) Plan and a Non-Code Section 423(b) Plan. 

(s) “Plan Account” means the account established for eachParticipant pursuant to Section 8(a). 

(t) “Purchase Price” means the price at which Participants may purchase Stock underthe Plan, as determined pursuant to Section 8(b). 

(u) “Stock” means the Common Stock of the Company. 

(v) “Subsidiary” means any corporation (other than the Company) in an unbroken chain of corporations beginning with the Company, if each of thecorporations other than the last corporation in the unbroken chain owns stock possessing 50% or more of the total combined voting power of all classes of stock in one of the other corporations in such chain. 

SECTION 3**Administration Of The Plan.**

(a)Committee Composition. The Plan shall be administered by the Committee. The Committee shall consist exclusively of one or more directors of the Company, who shall be appointed by the Board. 

(b) Committee Responsibilities. The Committee shall interpret the Plan and make all other policy decisions relating to the operation of the Plan. TheCommittee may adopt such rules, guidelines and forms, including sub-plans applicable to specific Affiliates or locations, as it deems appropriate to implement the Plan. The Committee’s determinations under the Plan shall be final and binding onall persons. 

SECTION 4**Enrollment And Participation.**

(a) Offering Periods. While the Plan is in effect, four Offering Periods shall commence in each calendar year. The Offering Periods shall consist of the 24-month periods commencing on eachFebruary 1, May 1, August 1 and November 1, except that the first Offering Period shall commence on the date of the IPO and end on October 31, 2003. 

(b) Accumulation Periods. While the Plan is in effect, four Accumulation Periods shall commence in each calendar year. The Accumulation Periods shallconsist of the three-month periods commencing on February 1, May 1, August 1 and November 1, except that the first Accumulation Period shall commence on the date of the IPO and end on January 31, 2002. 

 

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(c) Enrollment. Any individual who, on the day preceding the first day of an Offering Period (other thanthe initial Offering Period), qualifies as an Eligible Employee may elect to become a Participant in the Plan for such Offering Period by executing the enrollment form prescribed for this purpose by the Committee. The enrollment form shall be filedwith the Company at the prescribed location not later than 15 days prior to the commencement of such Offering Period. All Eligible Employees shall be automatically enrolled in the initial Offering Period under the Plan. 

(d) Duration of Participation. Once enrolled in the Plan, a Participant shall continue to participate in the Plan until he or she ceases to be anEligible Employee, withdraws from the Plan under Section 6(a) or reaches the end of the Offering Period in which his or her employee contributions were discontinued under Section 5(d) or 9(b). A Participant who discontinued employeecontributions under Section 5(d) or 9(b) or withdrew from the Plan under Section 6(a) may again become a Participant, if he or she then is an Eligible Employee, by following the procedure described in Subsection (c) above. AParticipant whose employee contributions were discontinued automatically under Section 9(b) shall automatically resume participation at the beginning of the earliest Offering Period ending in the next calendar year, if he or she then is anEligible Employee. 

(e) Applicable Offering Period. For purposes of calculating the purchase price under Section 8(b), the applicableOffering Period shall be determined as follows: 

(i) Once a Participant is enrolled in the Plan for an Offering Period, such Offering Periodshall continue to apply to him or her until the earliest of: (A) the end of such Offering Period; (B) the end of his or her participation under Subsection (d) above; or (C) re-enrollment in a subsequent Offering Period underParagraph (ii) below. 

(ii) In the event that the Fair Market Value of Stock on the last trading day before the commencement of theOffering Period in which the Participant is enrolled is higher than on the last trading day before the commencement of any subsequent Offering Period, the Participant shall automatically be re-enrolled for such subsequent Offering Period.

(iii) When a Participant reaches the end of an Offering Period but his or her participation is to continue, then such Participant shallautomatically be re-enrolled for the Offering Period that commences immediately after the end of the prior Offering Period. 

SECTION 5**EmployeeContributions.**

(a) Frequency of Payroll Deductions. A Participant may purchase shares of Stock under the Plan solely by means ofpayroll deductions; provided, however, that in the initial Accumulation Period, Participants may also purchase shares of Stock by making a lump sum cash payment at the end of the Accumulation Period. Payroll deductions, as designated by theParticipant pursuant to Subsection (b) below, shall occur on each payday during participation in the Plan. 

 

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(b) Amount of Payroll Deductions. An Eligible Employee shall designate on the enrollment form the portionof his or her Compensation that he or she elects to have withheld for the purchase of Stock. Such portion shall be a whole percentage of the Eligible Employee’s Compensation, but not less than 1% nor more than 15%. During the initialAccumulation Period, no payroll deduction will be made unless a Participant timely files the proper form with the Company after a registration statement covering the Stock is filed and effective under the Securities Act of 1933, as amended.

(c) Changing Withholding Rate. If a Participant wishes to change the rate of payroll withholding, he or she may do so by filing a newenrollment form with the Company at the prescribed location at any time. If filed on or after April 3, 2006, the new withholding rate shall be effective as soon as reasonably practicable after such form has been received by the Company, but inno event earlier than the start of the next Accumulation Period thereafter. If filed prior to April 3, 2006, the new withholding rate shall be effective as soon as reasonably practicable after such form has been received by the Company. The newwithholding rate shall be a whole percentage of the Eligible Employee’s Compensation, but not less than 1% nor more than 15%. 

(d)Discontinuing Payroll Deductions. If a Participant wishes to discontinue employee contributions entirely, he or she may do so by filing a new enrollment form with the Company at the prescribed location at any time. Payroll withholding shall cease assoon as reasonably practicable after such form has been received by the Company. Discontinuation of employee contributions will be treated as a withdrawal from the Plan pursuant to Section 6(a) effective immediately after the next purchaseof shares of Stock. In addition, employee contributions may be discontinued automatically pursuant to Section 9(b). A Participant who has discontinued employee contributions, and thereby withdrawn from the Plan, may re-enroll in the Planunder Section 4(c). Payroll withholding shall resume as soon as reasonably practicable after such form has been received by the Company. 

(e) Limit on Number of Elections. No Participant shall make more than 1 election under Subsection (c) or (d) above during any Accumulation Period. 

SECTION 6**Withdrawal From The Plan.**

(a) Withdrawal. A Participant may elect to withdraw fromthe Plan by filing the prescribed form with the Company at the prescribed location at any time before the last day of an Accumulation Period; provided, however, that in the initial Accumulation Period, Participants may be deemed to withdraw from thePlan by declining or failing to remit timely payment to the Company for the shares of Stock. As soon as reasonably practicable thereafter, payroll deductions shall cease and the entire amount credited to the Participant’s Plan Account shall berefunded to him or her in cash, without interest. No partial withdrawals shall be permitted. 

(b) Re-enrollment After Withdrawal. A formerParticipant who has withdrawn from the Plan shall not be a Participant until he or she re-enrolls in the Plan under Section 4(c). Re-enrollment may be effective only at the commencement of an Offering Period. 

 

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SECTION 7**Change In Employment Status.**

(a) Termination of Employment. Termination of employment as an Eligible Employee for any reason, including death, shall be treated as an automaticwithdrawal from the Plan under Section 6(a). A transfer from one Participating Company to another shall not be treated as a termination of employment. 

(b) Leave of Absence. For purposes of the Plan, employment shall not be deemed to terminate when the Participant goes on a military leave, a sick leave or another bona fide leave of absence, if the leave was approvedby the Company in writing. Employment, however, shall be deemed to terminate 90 days after the Participant goes on a leave, unless a contract or statute guarantees his or her right to return to work. Employment shall be deemed to terminate in anyevent when the approved leave ends, unless the Participant immediately returns to work. 

(c) Death. In the event of the Participant’sdeath, the amount credited to his or her Plan Account shall be paid to a beneficiary designated by him or her for this purpose on the prescribed form or, if none, to the Participant’s estate. Such form shall be valid only if it was filed withthe Company at the prescribed location before the Participant’s death. 

SECTION 8**Plan Accounts And Purchase Of Shares.**

(a) Plan Accounts. The Company shall maintain a Plan Account on its books in the name of each Participant. Whenever an amount is deducted from theParticipant’s Compensation under the Plan, such amount shall be credited to the Participant’s Plan Account. Amounts credited to Plan Accounts shall not be trust funds and may be commingled with the Company’s general assets and appliedto general corporate purposes. No interest shall be credited to Plan Accounts. 

(b) Purchase Price. The Purchase Price for each share ofStock purchased at the close of an Accumulation Period shall be the lower of: 

(i) 85% of the Fair Market Value of such share on the lasttrading day in such Accumulation Period; or 

(ii) 85% of the Fair Market Value of such share on the last trading day before thecommencement of the applicable Offering Period (as determined under Section 4(e)) or, in the case of the first Offering Period under the Plan, 85% of the price at which one share of Stock is offered to the public in the IPO. 

(c) Number of Shares Purchased. As of the last day of each Accumulation Period, each Participant shall be deemed to have elected to purchase the numberof shares of Stock calculated in accordance with this Subsection (c), unless the Participant has previously elected to withdraw from the Plan in accordance with Section 6(a). The amount then in the Participant’s Plan Account shall bedivided by the Purchase Price, and the number of shares that results shall be purchased from the Company with the funds in the Participant’s Plan Account. The foregoing notwithstanding, no Participant shall purchase more than 4,000 shares ofStock with respect to any Accumulation Period nor more than the amounts of Stock set forth in Sections 9(b) and 14(a). Any fractional share, as calculated under this Subsection (c), shall be rounded down to the next lower whole share. 

 

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(d) Available Shares Insufficient. In the event that the aggregate number of shares that all Participantselect to purchase during an Accumulation Period exceeds the maximum number of shares remaining available for issuance under Section 14(a), then the number of shares to which each Participant is entitled shall be determined by multiplying thenumber of shares available for issuance by a fraction, the numerator of which is the number of shares that such Participant has elected to purchase and the denominator of which is the number of shares that all Participants have elected to purchase.

(e) Issuance of Stock. Certificates representing the shares of Stock purchased by a Participant under the Plan shall be issued to him orher as soon as reasonably practicable after the close of the applicable Accumulation Period, except that the Committee may determine that such shares shall be held for each Participant’s benefit by a broker designated by the Committee (unlessthe Participant has elected that certificates be issued to him or her). Shares may be registered in the name of the Participant or jointly in the name of the Participant and his or her spouse as joint tenants with right of survivorship or ascommunity property. 

(f) Unused Cash Balances. An amount remaining in the Participant’s Plan Account that represents the PurchasePrice for any fractional share shall be carried over in the Participant’s Plan Account to the next Accumulation Period. Any amount remaining in the Participant’s Plan Account that represents the Purchase Price for whole shares that couldnot be purchased by reason of Subsection (c) above, Section 9(b) or Section 14(a) shall be refunded to the Participant in cash, without interest. 

(g) Stockholder Approval. Any other provision of the Plan notwithstanding, no shares of Stock shall be purchased under the Plan unless and until the Company’s stockholders have approved the adoption of the Plan.

SECTION 9**Limitations On Stock Ownership.**

(a) Five Percent Limit. Any other provision of the Plan notwithstanding, no Participant shall be granted a right to purchase Stock under the Plan if such Participant, immediately after his or her election to purchasesuch Stock, would own stock possessing more than 5% of the total combined voting power or value of all classes of stock of the Company or any parent or Subsidiary of the Company. For purposes of this Subsection (a), the following rules shall apply:

(i) Ownership of stock shall be determined after applying the attribution rules of section 424(d) of the Code; 

(ii) Each Participant shall be deemed to own any stock that he or she has a right or option to purchase under this or any other plan; and 

(iii) Each Participant shall be deemed to have the right to purchase up to 4,000 shares of Stock under this Plan with respect to each AccumulationPeriod. 

 

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(b) Dollar Limit. Any other provision of the Plan notwithstanding: 

(i) For any Offering Period commencing after December 31, 2003, no Participant shall accrue the right to purchase Stock in an Offering Period at arate greater than is then permitted under section 423(b)(8) of the Code (or any successor provision thereto); and 

(ii) For any OfferingPeriod commencing prior to January 1, 2004, no Participant shall purchase Stock with a Fair Market Value in excess of $25,000 per calendar year (under this Plan and all other employee stock purchase plans of the Company or any parent orSubsidiary of the Company). 

For purposes of this Subsection (b), the Fair Market Value of Stock shall be determined in each case asof the beginning of the Offering Period in which such Stock is purchased. Employee stock purchase plans not intended to come within the scope of section 423 of the Code shall be disregarded for purposes of this calculation. If a Participant isprecluded by this Subsection (b) from purchasing additional Stock under the Plan, then his or her employee contributions shall automatically be discontinued and shall resume at the beginning of the earliest Accumulation Period ending in thenext calendar year (if he or she then is an Eligible Employee). 

SECTION 10**Rights Not Transferable.**

The rights of any Participant under the Plan, or any Participant’s interest in any Stock or moneys to which he or she may be entitled under the Plan,shall not be transferable by voluntary or involuntary assignment or by operation of law, or in any other manner other than by beneficiary designation or the laws of descent and distribution. If a Participant in any manner attempts to transfer,assign or otherwise encumber his or her rights or interest under the Plan, other than by beneficiary designation or the laws of descent and distribution, then such act shall be treated as an election by the Participant to withdraw from the Planunder Section 6(a). 

SECTION 11**No Rights As An Employee.**

Nothing in the Plan or in any right granted under the Plan shall confer upon the Participant any right to continue in the employ of a Participating Company for any period of specific duration or interfere with orotherwise restrict in any way the rights of the Participating Companies or of the Participant, which rights are hereby expressly reserved by each, to terminate his or her employment at any time and for any reason, with or without cause. 

SECTION 12**No Rights As A Stockholder.**

AParticipant shall have no rights as a stockholder with respect to any shares of Stock that he or she may have a right to purchase under the Plan until such shares have been purchased on the last day of the applicable Offering Period. 

 

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SECTION 13**Securities Law Requirements.**

Shares of Stock shall not be issued under the Plan unless the issuance and delivery of such shares comply with (or are exempt from) all applicablerequirements of law, including (without limitation) the Securities Act of 1933, as amended, the rules and regulations promulgated thereunder, state securities laws and regulations, and the regulations of any stock exchange or other securities marketon which the Company’s securities may then be traded. 

SECTION 14**Stock Offered Under The Plan.**

(a) Authorized Shares. A total of One Million (1,000,000) shares of Stock have been reserved for issuance under the Plan. The number of shares ofStock reserved for issuance under the Plan will be increased on the first day of each of the Company’s fiscal years 2003 and 2004, and thereafter on the first day of each calendar year commencing with calendar year 2004 and continuing throughcalendar year 2011, by the lesser of: (i) Three Million (3,000,000) shares of Stock, (ii) three percent (3%) of the number of shares of Stock issued and outstanding on the last day prior to the date of increase, and (iii) alesser number of shares of Stock determined by the Board or the Compensation Committee of the Board. The aggregate number of shares available for purchase under the Plan shall at all times be subject to adjustment pursuant to this Section 14.

(b) Antidilution Adjustments. The aggregate number of shares of Stock offered under the Plan, the 4,000 share limitation described inSection 8(c) and the price of shares that any Participant has elected to purchase shall be adjusted proportionately by the Committee for any increase or decrease in the number of outstanding shares of Stock resulting from a subdivision orconsolidation of shares or the payment of a stock dividend, any other increase or decrease in such shares effected without receipt or payment of consideration by the Company, the distribution of the shares of a Subsidiary to the Company’sstockholders or a similar event. 

(c) Reorganizations. Any other provision of the Plan notwithstanding, immediately prior to the effectivetime of a Corporate Reorganization, the Offering Period then in progress shall terminate and shares shall be purchased pursuant to Section 8, unless the Plan is assumed by the surviving corporation or its parent corporation pursuant to the planof merger or consolidation. The Plan shall in no event be construed to restrict in any way the Company’s right to undertake a dissolution, liquidation, merger, consolidation or other reorganization. 

SECTION 15**Rules for Foreign Jurisdictions.**

(a) Compliance with Foreign Law. The Committee may adopt rules or procedures relating to the operation and administration of the Plan to accommodate the specific requirements of local laws and procedures. Without limiting thegenerality of the foregoing, the Committee is specifically authorized to adopt rules and procedures regarding handling of payroll deductions, payment of interest, conversion of local currency, payroll tax, withholding procedures and handling ofstock certificates which vary with local requirements. 

 

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(b) Non-423(b) Plan Component. The Committee may also adopt rules, procedures or sub-plansapplicable to particular Affiliates or locations, which sub-plans may be designed to be outside the scope of Code Section 423. The rules of such sub-plans may take precedence over other provisions of this Plan, with the exception ofSection 14(a), but unless otherwise superseded by the terms of such sub-plan, the provisions of this Plan shall govern the operation of such sub-plan. To the extent inconsistent with the requirements of Section 423, such sub-plan shall beconsidered part of the Non-423(b) Plan, and rights granted thereunder shall not be considered to comply with Code Section 423. 

SECTION 16**Amendment Or Discontinuance.**

The Board shall have the right to amend, suspend or terminate the Plan at any time and without notice.Except as provided in Section 14, any increase in the aggregate number of shares of Stock to be issued under the Plan shall be subject to approval by a vote of the stockholders of the Company. In addition, any other amendment of the Plan shallbe subject to approval by a vote of the stockholders of the Company to the extent required by an applicable law or regulation. 

 

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