SEATTLE GENETICS, INC. AMENDED AND RESTATED 2007 EQUITY INCENTIVE PLAN

Exhibit 10.2

SEATTLE GENETICS, INC.

AMENDED AND RESTATED

2007 EQUITY INCENTIVE PLAN

(amended and restated effective August 5, 2009)

1. Purposes of the Plan.

The purpose of this Plan is to encourage ownership in Seattle Genetics, Inc., a Delaware corporation (the “ Company ”), by key personnel whose long-term employment or other service relationship with the Company is considered essential to the Company’s continued progress and, thereby, encourage recipients to act in the stockholders’ interest and share in the Company’s success.

2. Definitions.

As used herein, the following definitions shall apply:

(a)   “ Administrator ” means the Board, any Committees or such delegates as shall be administering the Plan in accordance with Section 4 of the Plan.

(b)   “ Affiliate ” means any entity that is directly or indirectly controlled by the Company or any entity in which the Company has a significant ownership interest as determined by the Administrator.

(c)   “ Applicable Laws ” means the requirements relating to the administration of stock option and stock award plans under U.S. federal and state laws, the Code, any stock exchange or quotation system on which the Company has listed or submitted for quotation the Common Stock to the extent provided under the terms of the Company’s agreement with such exchange or quotation system and, with respect to Awards subject to the laws of any foreign jurisdiction where Awards are, or will be, granted under the Plan, the laws of such jurisdiction.

(d)   “ Award ” means a Stock Award or Option granted in accordance with the terms of the Plan.

(e)   “ Awardee ” means an Employee, Consultant or Director of the Company or any Affiliate who has been granted an Award under the Plan.

(f)   “ Award Agreement ” means a Stock Award Agreement and/or Option Agreement, which may be in written or electronic format, in such form and with such terms and conditions as may be specified by the Administrator, evidencing the terms and conditions of an individual Award. Each Award Agreement is subject to the terms and conditions of the Plan.

(g)   “ Board ” means the Board of Directors of the Company.

(h) “ Cause ” means (i) an action or omission of Awardee which constitutes a willful and intentional material breach of any written agreement or covenant with the Company, including without limitation, Awardee’s theft or other misappropriation of the Company’s proprietary information; (ii) Awardee’s commitment of fraud, embezzlement, misappropriation of funds or breach of trust in connection with Awardee’s employment; or (iii) Awardee’s conviction of any crime which involves dishonesty or a breach of trust, or gross negligence in connection with the performance of the Awardee’s duties. The determination as to whether an Awardee is being terminated for Cause shall be made in good faith by the Company and shall be final and binding on the Awardee. The foregoing definition does not in any way limit the Company’s ability to terminate an Awardee’s employment or consulting relationship at any time as provided in Section 16 below, and the term “Company” will be interpreted to include any Affiliate or successor thereto, if appropriate.

(i) “ Change in Control ” means any of the following, unless the Administrator provides otherwise:

i. an acquisition of the Company by another entity by means of any transaction or series of related transactions (including, without limitation, any reorganization, merger or consolidation but excluding any merger effected exclusively for the purpose of changing the domicile of the Company);

ii. a sale of all or substantially all of the assets of the Company, so long as in either i. or ii. above, the Company’s stockholders of record immediately prior to such transaction will, immediately after such transaction, hold less than fifty percent (50%) of the voting power of the surviving or acquiring entity; or

iii. any other event specified by the Board or a Committee, regardless of whether at the time an Award is granted or thereafter.

(j)   “ Code ” means the United States Internal Revenue Code of 1986, as amended.

(k)   “ Committee ” means the compensation committee of the Board or a committee of Directors appointed by the Board in accordance with Section 4 of the Plan.

(l)   “ Common Stock ” means the common stock of the Company.

(m)   “ Company ” means Seattle Genetics, Inc., a Delaware corporation, or its successor.

(n)   “ Constructive Termination ” means (A) there is a material reduction or change in job duties, responsibilities and requirements inconsistent with Awardee’s position with the Company and prior duties, responsibilities and requirements, provided that neither a mere change in title alone nor reassignment to a position that is substantially similar to the position held prior to the change in terms of job duties, responsibilities or requirements shall constitute a material reduction in job responsibilities; or (B) there is a

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reduction in Awardee’s then-current base salary by at least twenty percent (20%), provided that an across-the-board reduction in the salary level of all other employees by the same percentage amount as part of a general salary level reduction shall not constitute such a salary reduction; or (C) Awardee refuses to relocate to a facility or location more than fifty (50) miles from the Company’s current location.

(o) “ Consultant ” means any person engaged by the Company or any Affiliate to render services to such entity as an advisor or consultant.

(p) “ Conversion Award ” has the meaning set forth in Section 4(b)(xi) of the Plan.

(q)   “ Director ” means a member of the Board.

(r)   “ Employee ” means a regular, active employee of the Company or any Affiliate, including an Officer and/or Inside Director. Within the limitations of Applicable Law, the Administrator shall have the discretion to determine the effect upon an Award and upon an individual’s status as an Employee in the case of (i) any individual who is classified by the Company or its Affiliate as leased from or otherwise employed by a third party or as intermittent or temporary, even if any such classification is changed retroactively as a result of an audit, litigation or otherwise, (ii) any leave of absence approved by the Company or an Affiliate, (iii) any transfer between locations of employment with the Company or an Affiliate or between the Company and any Affiliate or between any Affiliates, (iv) any change in the Awardee’s status from an Employee to a Consultant or Director, and (v) at the request of the Company or an Affiliate an Employee becomes employed by any partnership, joint venture or corporation not meeting the requirements of an Affiliate in which the Company or an Affiliate is a party.

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

(t)   “ Fair Market Value ” of a Share on any given date means, unless otherwise required by Applicable Law, the fair market value of such Share as determined in good faith by the Administrator either through application of any reasonable valuation method or, in the absence of any method established under law, in practice or otherwise to be reasonable, then pursuant to the Administrator’s good faith conclusion that its valuation determination is reasonable; provided that, to the extent possible, such value shall be determined with reference to the closing price of the Company’s Common Stock as quoted on the applicable date on Nasdaq or the exchange or market with the greatest volume of trading in the Common Stock as of the applicable date, or if the Shares were not trading on such date, then the closing bid on the applicable date. The Administrator may make a good faith determination that it is reasonable to use one valuation method with respect one type of transaction arising under the Plan and a different valuation method with respect to another type of Plan transaction, provided that in each case the Administrator concludes that application of the particular method results in the most accurate measure of fair market value with respect thereto.

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(u)   “ Grant Date ” means, for all purposes, the date on which the Administrator makes the determination granting an Award, or such other date as is determined by the Administrator, provided that in the case of any Incentive Stock Option, the grant date shall be the later of the date on which the Administrator makes the determination granting such Incentive Stock Option or the date of commencement of the Awardee’s employment relationship with the Company.

(v)   “ Incentive Stock Option ” means an Option intended to qualify as an incentive stock option within the meaning of Section 422 of the Code and the regulations promulgated thereunder.

(w)   “ Inside Director ” means a Director who is an Employee.

(x) “ Nasdaq ” means the Nasdaq Global Market or its successor.

(y) “ Nonstatutory Stock Option ” means an Option not intended to qualify as an Incentive Stock Option.

(z)   “ Officer ” means a person who is an officer of the Company within the meaning of Section 16 of the Exchange Act and the rules and regulations promulgated thereunder.

(aa)   “ Option ” means a right granted under Section 8 to purchase a number of Shares at such exercise price, at such times, and on such other terms and conditions as are specified in the agreement or other documents evidencing the Option (the “ Option Agreement ”). Both Options intended to qualify as Incentive Stock Options and Nonstatutory Stock Options may be granted under the Plan.

(bb)   “ Outside Director ” means a Director who is not an Employee.

(cc) “ Participant ” means the Awardee or any person (including any estate) to whom an Award has been assigned or transferred as permitted hereunder.

(dd)   “ Plan ” means this Seattle Genetics, Inc. Amended and Restated 2007 Equity Incentive Plan.

(ee)   “ Qualifying Performance Criteria ” shall have the meaning set forth in Section 12(b) of the Plan.

(ff)   “ Share ” means a share of the Common Stock, as adjusted in accordance with Section 13 of the Plan.

(gg) “ Stock Appreciation Right ” means a right to receive cash and/or shares of Common Stock based on a change in the Fair Market Value of a specific number of shares of Common Stock between the Grant Date and the exercise date granted under Section 11.

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(hh) “ Stock Award ” means an award or issuance of Shares, Stock Units, Stock Appreciation Rights or other similar awards made under Section 11 of the Plan, the grant, issuance, retention, vesting, settlement and/or transferability of which is subject during specified periods of time to such conditions (including continued employment or performance conditions) and terms as are expressed in the agreement or other documents evidencing the Award (the “ Stock Award Agreement ”).

(ii)   “ Stock Unit ” means a bookkeeping entry representing an amount equivalent to the Fair Market Value of one Share (or a fraction or multiple of such value), payable in cash, property or Shares. Stock Units represent an unfunded and unsecured obligation of the Company, except as otherwise provided for by the Administrator.

(jj)   “ Subsidiary ” means any company (other than the Company) in an unbroken chain of companies beginning with the Company, provided each company in the unbroken chain (other than the Company) owns, at the time of determination, stock possessing 50% or more of the total combined voting power of all classes of stock in one of the other companies in such chain.

(kk)   “ Termination of Employment ” shall mean ceasing to be an Employee, Consultant or Director, as determined in the sole discretion of the Administrator. However, for Incentive Stock Option purposes, Termination of Employment will occur when the Awardee ceases to be an employee (as determined in accordance with Section 3401(c) of the Code and the regulations promulgated thereunder) of the Company or one of its Subsidiaries. The Administrator shall determine whether any corporate transaction, such as a sale or spin-off of a division or business unit, or a joint venture, shall be deemed to result in a Termination of Employment.

(ll)   “ Total and Permanent Disability ” shall have the meaning set forth in Section 22(e)(3) of the Code.

3. Stock Subject to the Plan.

(a)  Aggregate Limits. Subject to the provisions of Section 13 of the Plan, the maximum aggregate number of Shares that may be sold or issued pursuant to Awards granted under the Plan is 5,000,000 Shares.

Shares subject to Awards granted under the Plan that are cancelled, expire or are forfeited (including without limitation, any such Shares having been issued under the Award to the Participant) shall be available for re-grant under the Plan. If an Awardee pays the exercise or purchase price of an Award granted under the Plan through the tender of Shares, or if Shares are tendered or withheld to satisfy any Company withholding obligations, the number of Shares so tendered or withheld shall become available for re-issuance thereafter under the Plan. The Shares subject to the Plan may be either Shares reacquired by the Company, including Shares purchased in the open market, or authorized but unissued Shares.

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(b)  Code Section 162(m) Share Limits.  Subject to the provisions of Section 13 of the Plan, the aggregate number of Shares subject to Awards granted under this Plan during any calendar year to any one Awardee shall not exceed 1,000,000. Notwithstanding anything to the contrary in the Plan, the limitation set forth in this Section 3(b) shall be subject to adjustment under Section 13(a) of the Plan only to the extent that such adjustment will not affect the status of any Award intended to qualify as “performance based compensation” under Code Section 162(m).

4. Administration of the Plan.

(a)  Procedure.

i.  Multiple Administrative Bodies.  The Plan shall be administered by the Board, a Committee and/or their delegates.

ii.  Section 162.  To the extent that the Administrator determines it to be desirable to qualify Awards granted hereunder as “performance-based compensation” within the meaning of Section 162(m) of the Code, Awards to “covered employees” within the meaning of Section 162(m) of the Code or Employees that the Committee determines may be “covered employees” in the future shall be made by a Committee of two or more “outside directors” within the meaning of Section 162(m) of the Code.

iii.  Rule 16b-3.  To the extent desirable to qualify transactions hereunder as exempt under Rule 16b-3 promulgated under the Exchange Act (“Rule 16b-3”), Awards to Officers and Directors shall be made by the entire Board or a Committee of two or more “non-employee directors” within the meaning of Rule 16b-3.

iv.  Other Administration.  The Board or a Committee may delegate to an authorized officer or officers of the Company the power to approve Awards to persons eligible to receive Awards under the Plan who are not (A) subject to Section 16 of the Exchange Act or (B) at the time of such approval, “covered employees” under Section 162(m) of the Code or (C) any other executive officer.

v.  Delegation of Authority for the Day-to-Day Administration of the Plan.  Except to the extent prohibited by Applicable Law, the Administrator may delegate to one or more individuals the day-to-day administration of the Plan and any of the functions assigned to it in this Plan. Such delegation may be revoked at any time.

vi. Nasdaq . The Plan will be administered in a manner that complies with any applicable Nasdaq or stock exchange listing requirements.

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(b)  Powers of the Administrator.  Subject to the provisions of the Plan and, in the case of a Committee or delegates acting as the Administrator, subject to the specific duties delegated to such Committee or delegates, the Administrator shall have the authority, in its discretion:

i. to select the Employees, Consultants and Directors of the Company or its Affiliates to whom Awards are to be granted hereunder;

ii. to determine the number of shares of Common Stock or amount of cash to be covered by each Award granted hereunder;

iii. to determine the type of Award to be granted to the selected Employees, Consultants and Directors;

iii. to approve forms of Award Agreements for use under the Plan;

iv. to determine the terms and conditions, not inconsistent with the terms of the Plan, of any Award granted hereunder. Such terms and conditions include, but are not limited to, the exercise and/or purchase price (if applicable), the time or times when an Award may be exercised (which may or may not be based on performance criteria), the vesting schedule, any vesting and/or exercisability acceleration or waiver of forfeiture restrictions, the acceptable forms of consideration, the term, and any restriction or limitation regarding any Award or the Shares relating thereto, based in each case on such factors as the Administrator, in its sole discretion, shall determine and may be established at the time an Award is granted or thereafter;

v. to determine whether and under what circumstances an Option may be settled in cash under Section 8(h) instead of Common Stock;

vi. to correct administrative errors;

vii. to construe and interpret the terms of the Plan (including sub-plans and Plan addenda) and Awards granted pursuant to the Plan;

viii. to adopt rules and procedures relating to the operation and administration of the Plan to accommodate the specific requirements of local laws and procedures. Without limiting the generality of the foregoing, the Administrator is specifically authorized (A) to adopt the rules and procedures regarding the conversion of local currency, withholding procedures and handling of stock certificates which vary with local requirements and (B) to adopt sub-plans and Plan addenda as the Administrator deems desirable, to accommodate foreign laws, regulations and practice;

ix. to prescribe, amend and rescind rules and regulations relating to the Plan, including rules and regulations relating to sub-plans and Plan addenda;

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x. to modify or amend each Award, including, but not limited to, the acceleration of vesting and/or exercisability, provided, however, that any such amendment is subject to Section 14 of the Plan and except as set forth in that Section, may not impair any outstanding Award unless agreed to in writing by the Participant;

xi. to allow Participants to satisfy withholding tax amounts by electing to have the Company withhold from the Shares to be issued upon exercise of an Option or vesting of a Stock Award that number of Shares having a Fair Market Value equal to the amount required to be withheld. The Fair Market Value of the Shares to be withheld shall be determined in such manner and on such date that the Administrator shall determine or, in the absence of provision otherwise, on the date that the amount of tax to be withheld is to be determined. All elections by a Participant to have Shares withheld for this purpose shall be made in such form and under such conditions as the Administrator may provide;

xii. to authorize conversion or substitution under the Plan of any or all stock options, stock appreciation rights or other stock awards held by service providers of an entity acquired by the Company (the “ Conversion Awards ”). Any conversion or substitution shall be effective as of the close of the merger, acquisition or other transaction. The Conversion Awards may be Nonstatutory Stock Options or Incentive Stock Options, as determined by the Administrator, with respect to options granted by the acquired entity; provided, however, that with respect to the conversion of stock appreciation rights in the acquired entity, the Conversion Awards shall be Nonstatutory Stock Options. Unless otherwise determined by the Administrator at the time of conversion or substitution, all Conversion Awards shall have the same terms and conditions as Awards generally granted by the Company under the Plan;

xiii. to authorize any person to execute on behalf of the Company any instrument required to effect the grant of an Award previously granted by the Administrator;

xiv. to impose such restrictions, conditions or limitations as it determines appropriate as to the timing and manner of any resales by a Participant or other subsequent transfers by the Participant of any Shares issued as a result of or under an Award, including without limitation, (A) restrictions under an insider trading policy or under any other Company policy relating to Company stock and stock ownership and (B) restrictions as to the use of a specified brokerage firm for such resales or other transfers;

xv. to provide, either at the time an Award is granted or by subsequent action, that an Award shall contain as a term thereof, a right, either in tandem with the other rights under the Award or as an alternative thereto, of the Participant to receive, without payment to the Company, a number of Shares, cash or a combination thereof, the amount of which is determined by reference to the value of the Award; and

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xvi. to make all other determinations deemed necessary or advisable for administering the Plan and any Award granted hereunder.

(c)  Effect of Administrator’s Decision.  All decisions, determinations and interpretations by the Administrator regarding the Plan, any rules and regulations under the Plan and the terms and conditions of any Award granted hereunder, shall be final and binding on all Participants and on all other persons. The Administrator shall consider such factors as it deems relevant, in its sole and absolute discretion, to making such decisions, determinations and interpretations including, without limitation, the recommendations or advice of any officer or other employee of the Company and such attorneys, consultants and accountants as it may select.

5. Eligibility.

Awards may be granted to Employees, Consultants and Directors of the Company or any of its Affiliates; provided that Incentive Stock Options may be granted only to Employees of the Company or of a Subsidiary of the Company.

6. Term of Plan.

The Plan shall become effective on December 23, 2007 contingent upon approval of the stockholders of the Company. It shall continue in effect for a term of ten (10) years from the later of the date the stockholders of the Company approve the Plan or the date any amendment to add shares to the Plan is approved by stockholders of the Company, unless terminated earlier under Section 14 of the Plan.

7. Term of Award.

The term of each Award shall be determined by the Administrator and stated in the Award Agreement. In the case of an Option, the term shall be ten (10) years from the Grant Date or such shorter term as may be provided in the Award Agreement; provided that an Incentive Stock Option granted to an Employee who on the Grant Date owns stock representing more than ten percent (10%) of the voting power of all classes of stock of the Company or any Subsidiary shall have a term of no more than five (5) years from the Grant Date.

8. Options.

The Administrator may grant an Option or provide for the grant of an Option, either from time to time in the discretion of the Administrator or automatically upon the occurrence of specified events, including, without limitation, the achievement of performance goals, the satisfaction of an event or condition within the control of the Awardee or within the control of others.

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(a)  Option Agreement.  Each Option Agreement shall contain provisions regarding (i) the number of Shares that may be issued upon exercise of the Option, (ii) the type of Option, (iii) the exercise price of the Shares and the means of payment for the Shares, (iv) the term of the Option, (v) such terms and conditions on the vesting and/or exercisability of an Option as may be determined from time to time by the Administrator, (vi) restrictions on the transfer of the Option or the Shares issued upon exercise of the Option and forfeiture provisions on either and (vii) such further terms and conditions, in each case not inconsistent with this Plan as may be determined from time to time by the Administrator.

(b)  Exercise Price.  The per share exercise price for the Shares to be issued pursuant to exercise of an Option shall be determined by the Administrator, subject to the following:

i. In the case of an Incentive Stock Option, the per Share exercise price shall be no less than one hundred percent (100%) of the Fair Market Value per Share on the Grant Date; provided however, that in the case of an Incentive Stock Option granted to an Employee who on the Grant Date owns stock representing more than ten percent (10%) of the voting power of all classes of stock of the Company or any Subsidiary, the per Share exercise price shall be no less than one hundred ten percent (110%) of the Fair Market Value per Share on the Grant Date.

ii. In the case of a Nonstatutory Stock Option, the per Share exercise price shall be no less than one hundred percent (100%) of the Fair Market Value per Share on the Grant Date.

iii. Notwithstanding the foregoing, at the Administrator’s discretion, Conversion Awards may be granted in substitution and/or conversion of options of an acquired entity, with a per Share exercise price of less than 100% of the Fair Market Value per Share on the date of such substitution and/or conversion.

(c) No Option Repricings . Other than in connection with a change in the Company’s capitalization (as described in Section 14(a) of the Plan), the exercise price of an Option may not be reduced without stockholder approval.

(d)  Vesting Period and Exercise Dates.  Options granted under this Plan shall vest and/or be exercisable at such time and in such installments during the period prior to the expiration of the Option’s term as determined by the Administrator. The Administrator shall have the right to make the timing of the ability to exercise any Option granted under this Plan subject to continued employment, the passage of time and/or such performance requirements as deemed appropriate by the Administrator. At any time after the grant of an Option, the Administrator may reduce or eliminate any restrictions surrounding any Participant’s right to exercise all or part of the Option.

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(e)  Form of Consideration.  The Participant may pay the exercise price of an Option using any of the following forms of consideration, unless the Administrator determines not to permit such form of consideration at any time including at the time of exercise:

i. cash;

ii. check or w