Document:

EX-10.1

 Exhibit 10.1 

DIADEXUS, INC. 
 KEY
EMPLOYEE SEVERANCE BENEFIT PLAN 
 (as amended, December 15, 2014) 

1. Introduction. The Compensation Committee of the Board of Directors of diaDexus, Inc. (the “Company”) first approved this Key
Employee Severance Benefit Plan (the “Plan”) on October 30, 2013, and amended this Plan on December 15, 2014. The Plan provides for severance benefits to selected employees of the Company. This document constitutes
the Summary Plan Description for the Plan. 
 2. Definitions. For purposes of the Plan, the following terms are defined as follows: 

(a) “Base Salary” means the Participant’s base salary in effect immediately prior to date of the Qualifying
Termination, ignoring any reduction in base salary that forms the basis for Constructive Termination. 
 (b) “Board”
means the Board of Directors of the Company. 
 (c) “Cause” means (i) the Participant’s willful failure to
substantially perform the Participant’s duties for the Company (other than any such failure resulting from the Participant’s total and permanent disability); (ii) the Participant’s willful failure to carry out, or comply with, in
any material respect any lawful directive of the Board; (iii) the Participant’s commission at any time of any act or omission that results in, or may reasonably be expected to result in, a conviction, plea of no contest, plea of nolo
contendere or imposition of unadjudicated probation for any felony or crime involving moral turpitude; (iv) the Participant’s unlawful use (including being under the influence) or possession of illegal drugs on the Company’s premises
or while performing the Participant’s duties and responsibilities for the Company; (v) the Participant’s commission at any time of any act of fraud, embezzlement, misappropriation, misconduct, conversion of assets of the Company or
breach of fiduciary duty against the Company (or any predecessor thereto or successor thereof); or (vi) the Participant’s material breach of any agreement with the Company (including, without limitation, any breach of the restrictive
covenants of any such agreement); and which, in the case of clauses (i), (ii) and (vi), continues beyond thirty (30) days after the Company has provided the Participant written notice of such failure or breach (to the extent that, in the
reasonable judgment of the Board, such failure or breach can be cured by the Participant). Whether or not an event giving rise to “Cause” occurs will be determined by the Board in its sole discretion. 

(d) “Change in Control” means (i) the acquisition of the Company by another entity, or entities acting as a
group, by means of any transaction or series of related transactions (including, without limitation, any reorganization, merger or consolidation) that results in such entity or entities holding more than fifty percent (50%) of the outstanding
voting power of the Company (other than a bona fide equity financing transaction or transfers between affiliated funds) or (ii) a sale or other disposition by the Company of all or substantially all of the assets of the Company, in either case,
only if such transaction is also a change in the ownership or effective control of the Company, or a change in the ownership of a substantial portion of the Company’s assets, as described in Treasury Regulation Section 1.409A-3(i)(5). 

 (e) “Change in Control Termination” means (i) an Involuntary
Termination Without Cause, or (ii) a Constructive Termination, in either case that occurs immediately prior to, on or within twelve (12) months after a Change in Control. 

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

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

(h) “Constructive Termination” means the Participant’s resignation from all positions he or she then holds with
the Company, resulting in a Separation from Service, because one of the following events or actions is undertaken without the Participant’s written consent: (i) a material diminution in the Participant’s authority, duties or
responsibilities as in effect as of immediately prior to a Change in Control; (ii) a material reduction in the Participant’s annual base salary as in effect as of immediately prior to a Change in Control (other than a reduction that
affects all senior executives of the Company to a similar degree), which the parties agree is a reduction of ten percent (10%) or more; (iii) a material adverse change in the geographic location of the principal offices at which the
Participant must perform the Participant’s services as of immediately prior to a Change in Control (which shall in no event include a relocation of the Participant’s principal office of less than sixty (60) miles from South San
Francisco, CA); or (iv) the successor entity or surviving corporation in the Change of Control refuses to materially assume and comply with the terms of this Agreement. An event or action will not give the Participant grounds for Constructive
Termination unless (A) the Participant gives the Company written notice within sixty (60) days after the initial existence of the event or action that the Participant intends to resign in a Constructive Termination due to such event or
action; (B) the event or action is not reasonably cured by the Company within thirty (30) days after the Company receives written notice from the Participant; and (C) the Participant’s Separation from Service occurs within thirty
(30) days after the end of the cure period. 
 (i) “ERISA” means the Employee Retirement Income Security Act of
1974, as amended. 
 (j) “Involuntary Termination Without Cause” means a Participant’s involuntary termination
of employment by the Company, resulting in a Separation from Service, for a reason other than death, disability or Cause. 
 (k)
“Participant” means each individual who is employed by the Company, designated by the Plan Administrator as a potential participant, and has received and returned a signed Participation Notice. 

(l) “Participation Notice” means the latest notice delivered by the Company to a Participant informing such
Participant that he or she is eligible to participate in the Plan, in substantially the form attached hereto as Exhibit A. 
 (m)
“Plan Administrator” means the Board or any committee of the Board duly authorized to administer the Plan. The Plan Administrator may, but is not required to be, the Compensation Committee of the Board (the
“Compensation Committee”). The Board may at any time administer the Plan, in whole or in part, notwithstanding that the Board has previously appointed a committee to act as the Plan Administrator. 

  
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 (n) “Qualifying Termination” means (i) an Involuntary Termination
Without Cause that does not occur immediately prior to, on or within twelve (12) months after a Change in Control, or (ii) a Change in Control Termination. 

(o) “Section 409A” means Section 409A of the Code and the regulations and other guidance thereunder and any state
law of similar effect. 
 (p) “Separation from Service” means a “separation from service” within the
meaning of Treasury Regulations Section 1.409A-1(h), without regard to any alternative definition thereunder. 
 (q)
“Severance Period” means the number of months of severance that the Participant is eligible to receive under this Plan, as set forth on the Participant’s Participation Notice. The Severance Period commences on the date
of the Qualifying Termination. 
 3. Eligibility for Benefits. 

(a) Eligibility; Exceptions to Benefits. In general, only employees at or above the level of Senior Vice President will be eligible to
be Participants. However, the Plan Administrator may designate in writing other employees as Participants and determine the amount of benefits that may be received by such individuals under the Plan. Subject to the terms of the Plan, the Company
will provide the benefits described in Section 4 to the affected Participant. A Participant will not receive benefits under the Plan (or will receive reduced benefits under the Plan) in the following circumstances, as determined by the Plan
Administrator, in its sole discretion: 
 (i) The Participant’s employment is terminated by either the Company or the Participant for
any reason other than a Qualifying Termination. 
 (ii) The Participant has not entered into the Company’s standard form of Proprietary
Information and Inventions Assignment Agreement (the “Proprietary Information Agreement”). 
 (iii) The Participant
has failed to execute and allow to become effective the Release (as defined and described below) within sixty (60) days following the Participant’s Separation from Service. 

(iv) The Participant has failed to return all Company Property. For this purpose, “Company Property” means all paper
and electronic Company documents (and all copies thereof) created and/or received by the Participant during his or her period of employment with the Company and other Company materials and property that the Participant has in his or her possession
or control, including, without limitation, Company files, notes, drawings records, plans, forecasts, reports, studies, analyses, proposals, agreements, financial information, research and development information, sales and marketing information,
operational and personnel information, specifications, code, software, databases, computer-recorded information, tangible property and equipment (including, without limitation, leased vehicles, computers, computer equipment, software programs,
facsimile machines, mobile telephones, servers), credit and calling cards, entry cards, identification badges and keys, and any materials of any kind that 

  
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contain or embody any proprietary or confidential information of the Company (and all reproductions thereof, in whole or in part). As a condition to receiving benefits under the Plan, a
Participant must not make or retain copies, reproductions or summaries of any such Company documents, materials or property. However, a Participant is not required to return his or her personal copies of documents evidencing the Participant’s
hire, termination, compensation, benefits and stock options and any other documentation received as a stockholder of the Company. 
 (b)
Relation to Other Agreements and/or Plans. By accepting participation in this Plan, the Participant irrevocably waives his or her rights to any severance benefits (including vesting acceleration) to which the Participant may be entitled
pursuant to any offer letter, employment agreement, severance agreement, equity award agreement or any other similar agreement with the Company, or any other Company benefit plan, that is in effect on the date he or she signs the Participation
Notice, other than any acceleration of vesting benefits on a change in control transaction as provided under the Company’s equity incentive plans. 

(c) Termination of Benefits. A Participant’s right to receive benefits under the Plan will terminate immediately if, at any time
prior to or during the period for which the Participant is receiving benefits under the Plan, the Participant, without the prior written approval of the Plan Administrator: 

(i) willfully breaches a material provision of the Proprietary Information Agreement and/or any obligations of confidentiality,
non-solicitation, non-disparagement, no conflicts or non-competition set forth in the Participant’s employment agreement, offer letter or under applicable law; 

(ii) encourages or solicits any of the Company’s then current employees to leave the Company’s employ for any reason or interferes
in any other manner with employment relationships at the time existing between the Company and its then current employees; or 
 (iii)
induces any of the Company’s then current clients, customers, suppliers, vendors, distributors, licensors, licensees, or other third party to terminate their existing business relationship with the Company or interferes in any other adverse
manner with any existing business relationship between the Company and any then current client, customer, supplier, vendor, distributor, licensor, licensee, or other third party. 

4. Payments and Benefits. Except as may otherwise be provided in the Participant’s Participation Notice, in the event of a Qualifying Termination,
the Company will provide the payments and benefits described in this Section 4, subject to the terms of the Plan. 
 (a) Cash
Severance. The Company will pay “Cash Severance” to the Participant in an amount equal to his or her Base Salary for the Participant’s Severance Period, in accordance with the chart below. On an Involuntary
Termination Without Cause that is not a Change in Control Termination, the Company will pay the Cash Severance in equal installments on the Company’s regular payroll schedule over the Severance Period. However, no payments will be made prior to
the 60th day following the Participant’s Separation from Service. On the 60th day following the Participant’s Separation from Service, the Company will pay the Participant in a 

  
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lump sum the Cash Severance that such Participant would have received on or prior to such date under the original schedule but for the delay while waiting for the 60th day in compliance with Code
Section 409A and the effectiveness of the release, with the balance of the Cash Severance being paid as originally scheduled. On a Change in Control Termination, the Cash Severance will be paid in a lump sum on the sixtieth (60) day after
the date of the Participant’s Separation from Service. 
  

									
	 Tier
	  	 Position Level
	  	 Involuntary Termination

Without Cause at
 any
time before the
 1st anniversary of

Participant’s start date
	  	 Involuntary Termination

Without Cause on
 or after
the
 1st anniversary of

Participant’s start date
	  	 Change in

Control Termination

	1	  	Chief Executive Officer	  	3 months	  	6 months	  	12 months
	2	  	Senior Vice Presidents and above	  	3 months	  	6 months	  	6 months

 (b) Health Insurance Premiums. If the Participant timely elects continued coverage under the
Consolidated Omnibus Budget Reconciliation Act of 1985 (together with any state law of similar effect, “COBRA”), the Company will pay the full amount of the Participant’s COBRA premiums, or will provide coverage under
the Company’s self-funded broad based health insurance plans, on behalf of the Participant, including coverage for the Participant’s eligible dependents, until the earliest of (i) the end of the number of months in the
Participant’s Severance Period, (ii) the expiration of the Participant’s eligibility for the continuation coverage under COBRA, or (iii) the date when the Participant becomes eligible for substantially equivalent health insurance
coverage in connection with new employment or self-employment (such period from the date of the Qualifying Termination through the earliest of (i) through (iii), the “COBRA Payment Period”). However, if at any time the
Company determines, in its sole discretion, that the payment of the COBRA premiums would result in a violation of the nondiscrimination rules of Section 105(h)(2) of the Code or any statute or regulation of similar effect (including, without
limitation, the 2010 Patient Protection and Affordable Care Act, as amended by the 2010 Health Care and Education Reconciliation Act), then in lieu of providing the COBRA premiums or credit under the self-funded plan, the Company will instead pay
the Participant, on the first day of each month of the remainder of the COBRA Payment Period, a fully taxable cash payment equal to the COBRA premiums for that month (or, in the case of a self-funded plan, the monthly cost of such coverage), subject
to tax withholdings and deductions. On the sixtieth (60) day following the Participant’s Separation from Service, the Company will make the first payment under this paragraph equal to the aggregate amount of payments that the Company would
have paid through such date had such payments commenced on the Separation 

  
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from Service through such sixtieth (60) day, with the balance of the payments paid thereafter on the original schedule. In all cases, if the Participant becomes eligible for coverage under
another employer’s group health plan or otherwise ceases to be eligible for COBRA during the COBRA Payment Period, the Participant must immediately notify the Company of such event, and all payments and obligations under paragraph will cease.
For purposes of this paragraph, any applicable insurance premiums that are paid by the Company will not include any amounts payable by the Participant under a Section 125 of the Code health care reimbursement plan, which amounts, if any, are
the sole responsibility of the Participant. 
 (c) Double Trigger Vesting. In the event of a Qualifying Termination that is a Change
in Control Termination, each of the Participant’s then outstanding and unvested compensatory equity awards will fully vest, and, as applicable, become exercisable, effective as of immediately prior to the Qualifying Termination. 

5. Additional Requirements. 
 (a)
Release. To be eligible to receive any benefits under the Plan, a Participant must sign a general waiver and release, in substantially one of the forms attached hereto as Exhibit B, Exhibit C, or Exhibit D, as appropriate
(the “Release”), and such Release must become effective in accordance with its terms, in each case within sixty (60) days following the Qualifying Termination (the “Release Date”). The Plan
Administrator, in its sole discretion, may modify the form of the required Release to comply with applicable law, and any such Release may be incorporated into a termination agreement or other agreement with the Participant. 

(b) Certain Reductions. The Plan Administrator will reduce a Participant’s benefits under the Plan by any other statutory
severance obligations or severance obligations (including pay in lieu of notice) payable to the Participant by the Company (or any successor thereto) that are due in connection with the Participant’s Qualifying Termination and that are in the
same form as the benefits provided under the Plan (e.g., salary replacement, health insurance coverage, equity award vesting credit). Without limitation, this reduction includes a reduction for any benefits required pursuant to (i) any
applicable legal requirement, including, without limitation, the Worker Adjustment and Retraining Notification Act (the “WARN Act”), (ii) any Company policy or practice providing for the Participant to remain on the
payroll for a limited period of time after being given notice of the termination of the Participant’s employment, and (iii) any required salary continuation, notice pay, statutory severance payment or other payments required by local law,
as a result of the Qualifying Termination. The benefits provided under the Plan are intended to satisfy, to the greatest extent possible, and not to provide benefits duplicative of, any and all statutory and contractual obligations of the Company in
respect of the form of benefits provided under the Plan that may arise out of a Qualifying Termination, and the Plan Administrator will so construe and implement the terms of the Plan. Reductions will be applied on a retroactive basis, with benefits
previously provided being recharacterized as benefits pursuant to the Company’s statutory or other contractual obligations. The payments pursuant to the Plan are in addition to, and not in lieu of, any accrued but unpaid salary, bonuses or
employee welfare benefits to which a Participant is entitled for the period ending with the Participant’s Qualifying Termination. 

  
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 (c) Mitigation. Except as otherwise specifically provided in the Plan, a Participant will
not be required to mitigate damages or the amount of any payment provided under the Plan by seeking other employment or otherwise, nor will the amount of any payment provided for under the Plan be reduced by any compensation earned by a Participant
as a result of employment by another employer or any retirement benefits received by such Participant after the date of the Participant’s termination of employment with the Company. 

(d) Indebtedness of Participants. If a Participant is indebted to the Company on the effective date of his or her Qualifying
Termination, the Company reserves the right to offset the payment of any benefits under the Plan by the amount of such indebtedness. Such offset will be made in accordance with all applicable laws. The Participant’s execution of the
Participation Notice constitutes knowing written consent to the foregoing. 
 (e) Parachute Payments. Except as otherwise expressly
provided in an agreement between a Participant and the Company, if any payment or benefit the Participant would receive in connection with a Change in Control from the Company or otherwise (a “Payment”) would
(i) constitute a “parachute payment” within the meaning of Section 280G of the Code, and (ii) but for this sentence, be subject to the excise tax imposed by Section 4999 of the Code (the “Excise
Tax”), then such Payment will be equal to the Reduced Amount. The “Reduced Amount” will be either (A) the largest portion of the Payment that would result in no portion of the Payment being subject to the
Excise Tax, or (B) the largest portion, up to and including the total, of the Payment, whichever amount ((A) or (B)), after taking into account all applicable federal, state, provincial, foreign and local employment taxes, income taxes and the
Excise Tax (all computed at the highest applicable marginal rate), results in the Participant’s receipt, on an after-tax basis, of the greatest economic benefit notwithstanding that all or some portion of the Payment may be subject to the
Excise Tax. If a reduction in payments or benefits constituting “parachute payments” is necessary so that the Payment equals the Reduced Amount, reduction will occur in the following order: (1) reduction of cash payments;
(2) cancellation of accelerated vesting of stock awards other than stock options; (3) cancellation of accelerated vesting of stock options; and (4) reduction of other benefits paid to the Participant. Within any such category of
Payments (that is, (1), (2), (3) or (4)), a reduction will occur first with respect to amounts that are not “deferred compensation” within the meaning of Section 409A and then with respect to amounts that are. In the event that
acceleration of vesting of stock award compensation is to be reduced, such acceleration of vesting will be cancelled in the reverse order of the date of grant of the Participant’s applicable type of stock award (i.e., earliest granted
stock awards are cancelled last). 
 6. Tax Matters. 

(a) Application of Section 409A. It is intended that all of the benefits provided under the Plan satisfy, to the greatest extent
possible, the exemptions from the application of Section 409A provided under Treasury Regulations Sections 1.409A-1 (b)(4), 1.409A-1 (b)(5) and 1.409A-1 (b)(9), and the Plan will be construed to the greatest extent possible as consistent with
those provisions. To the extent not so exempt, the Plan (and any definitions in the Plan) will be construed in a manner that complies with Section 409A and incorporates by reference all required definitions and payment terms. For purposes of
Section 409A (including, without limitation, for purposes of Treasury Regulations Section 1.409A-2(b)(2)(iii)), a Participant’s 

  
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right to receive any installment payments under the Plan will be treated as a right to receive a series of separate payments and, accordingly, each installment payment under the Plan will at all
times be considered a separate and distinct payment. If the Plan Administrator determines that any of the payments upon a Separation from Service provided under the Plan (or under any other arrangement with the Participant) constitutes
“deferred compensation” under Section 409A and if the Participant is a “specified employee” of the Company, as such term is defined in Section 409A(a)(2)(B)(i), at the time of his or her Separation from Service, then,
solely to the extent necessary to avoid the incurrence of the adverse personal tax consequences under Section 409A, the timing of the payments upon a Separation from Service will be delayed as follows: on the earlier to occur of (i) the
date that is six (6) months and one (1) day after the effective date of the Participant’s Separation from Service, or (ii) the date of the Participant’s death (such earlier date, the “Delayed Initial Payment
Date”), the Company will (A) pay to the Participant a lump sum amount equal to the sum of the payments upon Separation from Service that the Participant would otherwise have received through the Delayed Initial Payment Date if the
commencement of the payments had not been delayed pursuant to this paragraph, and (B) commence paying the balance of the payments in accordance with the applicable payment schedules set forth above. No interest will be due on any amounts so
deferred. 
 (b) Withholding. All payments and benefits under the Plan will be subject to all applicable deductions and withholdings,
including, without limitation, obligations to withhold for federal, state, provincial, foreign and local income and employment taxes. 
 (c)
Tax Advice. By becoming a Participant in the Plan, the Participant agrees to review with the Participant’s own tax advisors the federal, state, provincial, local and foreign tax consequences of participation in the Plan. The Participant
will rely solely on such advisors and not on any statements or representations of the Company or any of its agents. The Participant understands that the Participant (and not the Company) will be responsible for his or her own tax liability that may
arise as a result of becoming a Participant in the Plan. 
 7. Reemployment. In the event of a Participant’s reemployment by the Company during
the period of time in respect of which severance benefits have been provided, the Company, in its sole and absolute discretion, may require such Participant to repay to the Company all or a portion of such severance benefits as a condition of
reemployment. 
 8. Clawback; Recovery. All payments and severance benefits provided under the Plan will be subject to recoupment in accordance with
any clawback policy that the Company is required to adopt pursuant to the listing standards of any national securities exchange or association on which the Company’s securities are listed or as is otherwise required by the Dodd-Frank Wall
Street Reform and Consumer Protection Act or other applicable law. No recovery of compensation under such a clawback policy will be an event giving rise to a right to resign for “good reason,” Constructive Termination or any similar term
under any plan of or agreement with the Company. 
 9. Right to Interpret Plan; Amendment or Termination. 

(a) Exclusive Discretion. The Plan Administrator will have the exclusive discretion and authority to establish rules, forms and
procedures for the administration of the Plan and to 

  
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construe and interpret the Plan and to decide any and all questions of fact, interpretation, definition, computation or administration arising in connection with the operation of the Plan,
including, without limitation, the eligibility to participate in the Plan, the amount of benefits paid under the Plan and any adjustments that need to be made in accordance with the laws applicable to a Participant. The rules, interpretations,
computations and other actions of the Plan Administrator will be binding and conclusive on all persons. 
 (b) Amendment or
Termination. The Company reserves the right to amend or terminate the Plan, any Participation Notice issued pursuant to the Plan or the benefits provided hereunder at any time; provided, however, that no such amendment or
termination will apply to any Participant who would be adversely affected by such amendment or termination unless such Participant consents in writing to such amendment or termination. Any action amending or terminating the Plan or any Participation
Notice will be in writing and executed by a duly authorized officer of the Company. 
 10. No Implied Employment Contract. The Plan will not be
deemed (a) to give any employee or other person any right to be retained in the employ of the Company, or (b) to interfere with the right of the Company to discharge any employee or other person at any time, with or without cause, which
right is hereby reserved. 
 11. Legal Construction. The Plan will be governed by and construed under the laws of the State of California (without
regard to principles of conflict of laws), except to the extent preempted by ERISA. 
 12. Claims, Inquiries and Appeals. 

(a) Applications For Benefits And Inquiries. Any application for benefits, inquiries about the Plan or inquiries about present or
future rights under the Plan must be submitted to the Plan Administrator in writing by an applicant (or his or her authorized representative). The Plan Administrator is set forth in Section 14(e). 

(b) Denial of Claims. In the event that any application for benefits is denied in whole or in part, the Plan Administrator must provide
the applicant with written or electronic notice of the denial of the application and of the applicant’s right to review the denial. Any electronic notice will comply with the regulations of the U.S. Department of Labor. The notice of denial
will be set forth in a manner designed to be understood by the applicant and will include the following: 
 (i) the specific reason or
reasons for the denial; 
 (ii) references to the specific Plan provisions upon which the denial is based; 

(iii) a description of any additional information or material that the Plan Administrator needs to complete the review and an explanation of
why such information or material is necessary; and 
 (iv) an explanation of the Plan’s review procedures and the time limits
applicable to such procedures, including a statement of the applicant’s right to bring a civil action under Section 502(a) of ERISA following a denial on review of the claim, as described in Section 12(d). 

  
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 The notice of denial will be given to the applicant within ninety (90) days after the Plan
Administrator receives the application, unless special circumstances require an extension of time, in which case, the Plan Administrator has up to an additional ninety (90) days for processing the application. If an extension of time for
processing is required, written notice of the extension will be furnished to the applicant before the end of the initial ninety (90) day period. 

The notice of extension will describe the special circumstances necessitating the additional time and the date by which the Plan Administrator
is to render its decision on the application. 
 (c) Request for a Review. Any person (or that person’s authorized
representative) for whom an application for benefits is denied, in whole or in part, may appeal the denial by submitting a request for a review to the Plan Administrator within sixty (60) days after the application is denied. A request for a
review will be in writing and will be addressed to: 
 diaDexus, Inc. 

Attn: Compensation Committee 
 349
Oyster Point Blvd. 
 South San Francisco, CA 94080 

A request for review must set forth all of the grounds on which it is based, all facts in support of the request and any other matters that
the applicant feels are pertinent. The applicant (or his or her representative) will have the opportunity to submit (or the Plan Administrator may require the applicant to submit) written comments, documents, records, and other information relating
to his or her claim. The applicant (or his or her representative) will be provided, upon request and free of charge, reasonable access to, and copies of, all documents, records and other information relevant to his or her claim. The review will take
into account all comments, documents, records and other information submitted by the applicant (or his or her representative) relating to the claim, without regard to whether such information was submitted or considered in the initial benefit
determination. 
 (d) Decision on Review. The Plan Administrator will act on each request for review within sixty (60) days
after receipt of the request, unless special circumstances require an extension of time (not to exceed an additional sixty (60) days), for processing the request for a review. If an extension for review is required, written notice of the
extension will be furnished to the applicant within the initial sixty (60) day period. This notice of extension will describe the special circumstances necessitating the additional time and the date by which the Plan Administrator is to render
its decision on the review. The Plan Administrator will give prompt, written or electronic notice of its decision to the applicant. Any electronic notice will comply with the regulations of the U.S. Department of Labor. In the event that the Plan
Administrator confirms the denial of the application for benefits, in whole or in part, the notice will set forth, in a manner designed to be understood by the applicant, the following: 

(i) the specific reason or reasons for the denial; 

  
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 (ii) references to the specific Plan provisions upon which the denial is based; 

(iii) a statement that the applicant is entitled to receive, upon request and free of charge, reasonable access to, and copies of, all
documents, records and other information relevant to his or her claim; and 
 (iv) a statement of the applicant’s right to bring a
civil action under Section 502(a) of ERISA. 
 (e) Rules and Procedures. The Plan Administrator will establish rules and
procedures, consistent with the Plan and with ERISA, as necessary and appropriate in carrying out its responsibilities in reviewing benefit claims. The Plan Administrator may require an applicant who wishes to submit additional information in
connection with an appeal from the denial of benefits to do so at the applicant’s own expense. 
 (f) Exhaustion Of Remedies. No
legal action for benefits under the Plan may be brought until the applicant (i) has submitted a written application for benefits in accordance with the procedures described by Section 12(a), (ii) has been notified by the Plan
Administrator that the application is denied, (iii) has filed a written request for a review of the application in accordance with the appeal procedure described in Section 12(c), and (iv) has been notified that the Plan Administrator
has denied the appeal. Notwithstanding the foregoing, if the Plan Administrator does not respond to an applicant’s claim or appeal within the relevant time limits specified in this Section 12, the applicant may bring legal action for
benefits under the Plan pursuant to Section 502(a) of ERISA. 
 13. Basis of Payments to and from the Plan. All benefits under the Plan will be
paid by the Company. The Plan will be unfunded, and benefits hereunder will be paid only from the general assets of the Company. 
 14. Other Plan
Information. 
 (a) Plan Sponsor. The Company is the “Plan Sponsor,” as that term is used in ERISA. 

diaDexus, Inc. 
 349 Oyster Point
Blvd. 
 South San Francisco, CA 94080 

(b) Employer and Plan Identification Numbers. The Employer Identification Number assigned to the Plan Sponsor by the Internal Revenue
Service is 94-3236309. The Plan Number assigned to the Plan by the Plan Sponsor pursuant to the instructions of the Internal Revenue Service is 525. 

(c) Ending Date for Plan’s Fiscal Year. The date of the end of the fiscal year for the purpose of maintaining the Plan’s
records is December 31. 

  
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 (d) Agent for the Service of Legal Process. The agent for the service of legal process
with respect to the Plan is: 
 diaDexus, Inc. 

Attn: Chairman of the Compensation Committee 

349 Oyster Point Blvd. 
 South San
Francisco, CA 94080 
 Service of legal process may also be made upon the Plan Administrator. 

(e) Plan Administrator. The Plan Administrator of the Plan is: 

diaDexus, Inc. 
 Attn: Compensation
Committee 
 349 Oyster Point Blvd. 

South San Francisco, CA 94080 
 The Plan
Sponsor’s and Plan Administrator’s telephone number is 650-246-6400. The Plan Administrator is the named fiduciary charged with the responsibility for administering the Plan. 

15. Statement of ERISA Rights. 

Participants in the Plan (which is a welfare benefit plan sponsored by diaDexus, Inc.) are entitled to certain rights and protections under
ERISA. If you are a Participant, you are considered a participant in the Plan for the purposes of this Section 15 and, under ERISA, you are entitled to: 

Receive Information About Your Plan and Benefits 

(a) Examine, without charge, at the Plan Administrator’s office and at other specified locations, such as worksites, all documents
governing the Plan and a copy of the latest annual report (Form 5500 Series), if applicable, filed by the Plan with the U.S. Department of Labor and available at the Public Disclosure Room of the Employee Benefits Security Administration; 

(b) Obtain, upon written request to the Plan Administrator, copies of documents governing the operation of the Plan and copies of the latest
annual report (Form 5500 Series), if applicable, and an updated (as necessary) Summary Plan Description. The Plan Administrator may make a reasonable charge for the copies; and 

(c) Receive a summary of the Plan’s annual financial report, if applicable. The Plan Administrator is required by law to furnish each
participant with a copy of this summary annual report. 
 Prudent Actions by Plan Fiduciaries 

In addition to creating rights for Plan participants, ERISA imposes duties upon the people who are responsible for the operation of the
employee benefit plan. The people who operate the Plan, called “fiduciaries” of the Plan, have a duty to do so prudently and in the interest of you 

  
 - 12 - 

 
and other Plan participants and beneficiaries. No one, including your employer or any other person, may fire you or otherwise discriminate against you in any way to prevent you from obtaining a
Plan benefit or exercising your rights under ERISA. 
 Enforce Your Rights 

If your claim for a Plan benefit is denied or ignored, in whole or in part, you have a right to know why this was done, to obtain copies of
documents relating to the decision without charge and to appeal any denial, all within certain time schedules. 
 Under ERISA, there are
steps you can take to enforce the above rights. For instance, if you request a copy of Plan documents or the latest annual report from the Plan, if applicable, and do not receive them within thirty (30) days, you may file suit in a federal
court. In such a case, the court may require the Plan Administrator to provide the materials and pay you up to $110 a day until you receive the materials, unless the materials were not sent because of reasons beyond the control of the Plan
Administrator. 
 If you have a claim for benefits that is denied or ignored, in whole or in part, you may file suit in a state or federal
court. 
 If you are discriminated against for asserting your rights, you may seek assistance from the U.S. Department of Labor, or you may
file suit in a federal court. The court will decide who should pay court costs and legal fees. If you are successful, the court may order the person you have sued to pay these costs and fees. If you lose, the court may order you to pay these costs
and fees, for example, if it finds your claim is frivolous. 
 Assistance with Your Questions 

If you have any questions about the Plan, you should contact the Plan Administrator. If you have any questions about this statement or about
your rights under ERISA, or if you need assistance in obtaining documents from the Plan Administrator, you should contact the nearest office of the Employee Benefits Security Administration, U.S. Department of Labor, listed in your telephone
directory or the Division of Technical Assistance and Inquiries, Employee Benefits Security Administration, U.S. Department of Labor, 200 Constitution Avenue N.W., Washington, D.C. 20210. You may also obtain certain publications about your rights
and responsibilities under ERISA by calling the publications hotline of the Employee Benefits Security Administration. 
 16. General Provisions.

 (a) Plan Document Controls. In the event of any inconsistency between this Plan document and any other communication regarding
this Plan, this Plan document controls. 
 (b) Notices. Any notice, demand or request required or permitted to be given by either the
Company or a Participant pursuant to the terms of the Plan will be in writing and will be deemed given when delivered personally, when received electronically (including email addressed to the Participant’s Company email account and to the
Company email account of the Company’s Chairman of the Compensation Committee), or deposited in the U.S. Mail, First 

  
 - 13 - 

 
Class with postage prepaid, and addressed to the parties, in the case of the Company, at the address set forth in Section 14(a), in the case of a Participant, at the address as set forth in
the Company’s employment file maintained for the Participant as previously furnished by the Participant or such other address as a party may request by notifying the other in writing. 

(c) Transfer and Assignment. The rights and obligations of a Participant under the Plan may not be transferred or assigned without the
prior written consent of the Company. The Plan will be binding upon any surviving entity resulting from a Change in Control and upon any other person who is a successor by merger, acquisition, consolidation or otherwise to the business formerly
carried on by the Company without regard to whether or not such person or entity actively assumes the obligations hereunder. 
 (d)
Waiver. Any party’s failure to enforce any provision or provisions of the Plan will not in any way be construed as a waiver of any such provision or provisions, nor prevent any party from thereafter enforcing each and every other
provision of the Plan. The rights granted to the parties herein are cumulative and will not constitute a waiver of any party’s right to assert all other legal remedies available to it under the circumstances. 

(e) Severability. Should any provision of the Plan be declared or determined to be invalid, illegal or unenforceable, the validity,
legality and enforceability of the remaining provisions will not in any way be affected or impaired. 
 (f) Section Headings. Section
headings in the Plan are included only for convenience of reference and will not be considered part of the Plan for any other purpose. 

  
 -14- 

 Exhibit A 

DIADEXUS, INC. 
 Key
Employee Severance Benefit Plan 
 Participation Notice 
  

			
	To:	 	  

			
		
	Date:	 	  

 diaDexus, Inc. (the “Company”) has adopted the
diaDexus, Inc. Key Employee Severance Benefit Plan (the “Plan”). The Company is providing you this Participation Notice to inform you that you have been designated as a Participant in the Plan. A copy of the
Plan document is attached to this Participation Notice. The terms and conditions of your participation in the Plan are as set forth in the Plan and this Participation Notice, which together constitute the Summary Plan Description for the Plan.

 You are a Tier [1] [2] Participant. 

You understand that by accepting your status as a Participant in the Plan, any of your stock options that have been considered to be
“incentive stock options” prior to the date hereof, if applicable, may cease to qualify as “incentive stock options” as a result of the vesting acceleration benefit provided in the Plan. By accepting participation, you represent
that you have either consulted your personal tax or financial planning advisor about the tax consequences of your participation in the Plan, or you have knowingly declined to do so. 

Please return to the Company’s Chief Executive Officer a copy of this Participation Notice signed by you. Please retain a copy of this
Participation Notice, along with the Plan document, for your records. This Participation Notice supersedes any prior Participation Notices that have been provided to you. 

 

	
	  

	(Signature)
	
	  

	(Date)

 Exhibit B 

Release Agreement 

[Employees Age 40 or Over; Individual Termination] 

I understand and agree completely to the terms set forth in the diaDexus, Inc. Key Employee Severance Benefit Plan (the
“Plan”). 
 I understand that this Release, together with the Plan, constitutes the complete, final and
exclusive embodiment of the entire agreement between the Company, affiliates of the Company and me with regard to the subject matter hereof. I am not relying on any promise or representation by the Company or an affiliate of the Company that is not
expressly stated therein. Certain capitalized terms used in this Release are defined in the Plan. 
 I hereby confirm my obligations under
my Proprietary Information Agreement. 
 Except as otherwise set forth in this Release, I hereby generally and completely
release the Company and its affiliates, and their parents, subsidiaries, successors, predecessors and affiliates, and their partners, members, directors, officers, employees, stockholders, shareholders, agents, attorneys, predecessors, insurers,
affiliates and assigns, from any and all claims, liabilities and obligations, both known and unknown, that arise out of or are in any way related to events, acts, conduct or omissions occurring at any time prior to and including the date I sign this
Release. This general release includes, but is not limited to: (a) all claims arising out of or in any way related to my employment with the Company and its affiliates, or their affiliates, or the termination of that employment; (b) all
claims related to my compensation or benefits, including salary, bonuses, commissions, vacation pay, expense reimbursements, severance pay, fringe benefits, stock, stock options or any other ownership interests in the Company and its affiliates, or
their affiliates; (c) all claims for breach of contract, wrongful termination and breach of the implied covenant of good faith and fair dealing; (d) all tort claims, including claims for fraud, defamation, emotional distress and discharge
in violation of public policy; and (e) all federal, state, provincial and local statutory claims, including claims for discrimination, harassment, retaliation, attorneys’ fees or other claims arising under the federal Civil Rights Act of
1964 (as amended), the federal Americans with Disabilities Act of 1990 (as amended), the federal Age Discrimination in Employment Act (as amended) (“ADEA”) and the federal Employee Retirement Income Security Act of 1974 (as
amended). 
 Notwithstanding the foregoing, I understand that the following rights or claims are not included in my Release:
(a) any rights or claims for indemnification I may have pursuant to any written indemnification agreement with the Company or its affiliate to which I am a party; the charter, bylaws or operating agreements of the Company or its affiliate; or
under applicable law; or (b) any rights which cannot be waived as a matter of law. In addition, I understand that nothing in this Release prevents me from filing, cooperating with or participating in any proceeding before the Equal Employment
Opportunity Commission or the U.S. Department of Labor, except that I hereby waive my right to any monetary benefits in connection with any such claim, charge or proceeding. 

I hereby represent and warrant that, other than the claims identified in this paragraph, I am not aware of any claims I have or might have
that are not included in the Release. 

 I acknowledge that I am knowingly and voluntarily waiving and releasing any rights I may have
under the ADEA, and that the consideration given under the Plan for the waiver and release in the preceding paragraph hereof is in addition to anything of value to which I was already entitled. I further acknowledge that I have been advised by this
writing, as required by the ADEA, that: (a) my waiver and release do not apply to any rights or claims that may arise after the date I sign this Release; (b) I should consult with an attorney prior to signing this Release (although I may
choose voluntarily not do so); (c) I have twenty-one (21) days to consider this Release (although I may choose voluntarily to sign this Release earlier); (d) I have seven (7) days following the date I sign this Release to revoke
the Release by providing written notice to an officer of the Company; and (e) this Release will not be effective until the date upon which the revocation period has expired, which will be the eighth (8th) day after I sign this Release.

 I hereby represent that I have been paid all compensation owed and for all hours worked; I have received all the leave and leave benefits
and protections for which I am eligible pursuant to the Family and Medical Leave Act, or otherwise; and I have not suffered any on-the-job injury for which I have not already filed a workers’ compensation claim. 

I acknowledge that to become effective, I must sign and return this Release to the Company so that it is received not later than twenty-one
(21) days following the date it is provided to me. 
  

			
	 PARTICIPANT:

	
	  

	(Signature)
		
	By:	 	  

 
			
		
	Date:	 	  

 Exhibit C 

Release Agreement 

[Employees Age 40 or Over; Group Termination] 

I understand and agree completely to the terms set forth in the diaDexus, Inc. Key Employee Severance Benefit Plan (the
“Plan”). 
 I understand that this Release, together with the Plan, constitutes the complete, final and
exclusive embodiment of the entire agreement between the Company, affiliates of the Company and me with regard to the subject matter hereof. I am not relying on any promise or representation by the Company or an affiliate of the Company that is not
expressly stated therein. Certain capitalized terms used in this Release are defined in the Plan. 
 I hereby confirm my obligations under
my Proprietary Information Agreement. 
 Except as otherwise set forth in this Release, I hereby generally and completely
release the Company and its affiliates, and their parents, subsidiaries, successors, predecessors and affiliates, and its and their partners, members, directors, officers, employees, stockholders, shareholders, agents, attorneys, predecessors,
insurers, affiliates and assigns, from any and all claims, liabilities and obligations, both known and unknown, that arise out of or are in any way related to events, acts, conduct or omissions occurring at any time prior to and including the date I
sign this Release. This general release includes, but is not limited to: (a) all claims arising out of or in any way related to my employment with the Company and its affiliates, or their affiliates, or the termination of that employment;
(b) all claims related to my compensation or benefits, including salary, bonuses, commissions, vacation pay, expense reimbursements, severance pay, fringe benefits, stock, stock options or any other ownership interests in the Company and its
affiliates, or their affiliates; (c) all claims for breach of contract, wrongful termination and breach of the implied covenant of good faith and fair dealing; (d) all tort claims, including claims for fraud, defamation, emotional distress
and discharge in violation of public policy; and (e) all federal, state, provincial and local statutory claims, including claims for discrimination, harassment, retaliation, attorneys’ fees or other claims arising under the federal Civil
Rights Act of 1964 (as amended), the federal Americans with Disabilities Act of 1990 (as amended), the federal Age Discrimination in Employment Act (as amended) (“ADEA”) or the federal Employee Retirement Income Security Act
of 1974 (as amended). 
 Notwithstanding the foregoing, I understand that the following rights or claims are not included in
my Release: (a) any rights or claims for indemnification I may have pursuant to any written indemnification agreement with the Company or its affiliate to which I am a party; the charter, bylaws or operating agreements of the Company or its
affiliate; or under applicable law; or (b) any rights which cannot be waived as a matter of law. In addition, I understand that nothing in this Release prevents me from filing, cooperating with or participating in any proceeding before the
Equal Employment Opportunity Commission, or the U.S. Department of Labor, except that I hereby waive my right to any monetary benefits in connection with any such claim, charge or proceeding. I hereby represent and warrant that, other than the
claims identified in this paragraph, I am not aware of any claims I have or might have that are not included in the Release. 

 I acknowledge that I am knowingly and voluntarily waiving and releasing any rights I may have
under the ADEA, and that the consideration given under the Plan for the waiver and release in the preceding paragraph hereof is in addition to anything of value to which I was already entitled. I further acknowledge that I have been advised by this
writing, as required by the ADEA, that: (a) my waiver and release do not apply to any rights or claims that may arise after the date I sign this Release; (b) I should consult with an attorney prior to signing this Release (although I may
choose voluntarily not to do so); (c) I have forty-five (45) days to consider this Release (although I may choose voluntarily to sign this Release earlier); (d) I have seven (7) days following the date I sign this Release to
revoke the Release by providing written notice to an office of the Company; (e) this Release will not be effective until the date upon which the revocation period has expired, which will be the eighth (8th) day after I sign this Release;
and (f) I have received with this Release a detailed list of the job titles and ages of all employees who were terminated in this group termination and the ages of all employees of the Company in the same job classification or organizational
unit who were not terminated. 
 I hereby represent that I have been paid all compensation owed and for all hours worked; I have received
all the leave and leave benefits and protections for which I am eligible pursuant to the Family and Medical Leave Act, or otherwise; and I have not suffered any on-the-job injury for which I have not already filed a workers’ compensation claim.

 I acknowledge that to become effective, I must sign and return this Release to the Company so that it is received not later than
forty-five (45) days following the date it is provided to me. 
  

			
	PARTICIPANT:
	
	  

	(Signature)
		
	By:	 	  

 
			
		
	Date:	 	  

 Exhibit D 

Release Agreement 

[Employees Under Age 40] 

I understand and agree completely to the terms set forth in the diaDexus, Inc. Key Employee Severance Benefit Plan (the
“Plan”). 
 I understand that this Release, together with the Plan, constitutes the complete, final and
exclusive embodiment of the entire agreement between the Company, affiliates of the Company and me with regard to the subject matter hereof. I am not relying on any promise or representation by the Company or an affiliate of the Company that is not
expressly stated therein. Certain capitalized terms used in this Release are defined in the Plan. 
 I hereby confirm my obligations under
my Proprietary Information Agreement. 
 Except as otherwise set forth in this Release, I hereby generally and completely release the
Company and its affiliates, and their parents, subsidiaries, successors, predecessors and affiliates, and its and their partners, members, directors, officers, employees, stockholders, shareholders, agents, attorneys, predecessors, insurers,
affiliates and assigns, from any and all claims, liabilities and obligations, both known and unknown, that arise out of or are in any way related to events, acts, conduct or omissions occurring at any time prior to and including the date I sign this
Release. This general release includes, but is not limited to: (a) all claims arising out of or in any way related to my employment with the Company and its affiliates, or their affiliates, or the termination of that employment; (b) all
claims related to my compensation or benefits, including salary, bonuses, commissions, vacation pay, expense reimbursements, severance pay, fringe benefits, stock, stock options or any other ownership interests in the Company and its affiliates, or
their affiliates; (c) all claims for breach of contract, wrongful termination and breach of the implied covenant of good faith and fair dealing; (d) all tort claims, including claims for fraud, defamation, emotional distress and discharge
in violation of public policy; and (e) all federal, state, provincial and local statutory claims, including claims for discrimination, harassment, retaliation, attorneys’ fees or other claims arising under the federal Civil Rights Act of
1964 (as amended), the federal Americans with Disabilities Act of 1990 (as amended) or the federal Employee Retirement Income Security Act of 1974 (as amended). 

Notwithstanding the foregoing, I understand that the following rights or claims are not included in my Release: (a) any rights or claims
for indemnification I may have pursuant to any written indemnification agreement with the Company or its affiliate to which I am a party; the charter, bylaws or operating agreements of the Company or its affiliate; or under applicable law; or
(b) any rights which cannot be waived as a matter of law. In addition, I understand that nothing in this Release prevents me from filing, cooperating with or participating in any proceeding before the Equal Employment Opportunity Commission, or
the U.S. Department of Labor, except that I hereby waive my right to any monetary benefits in connection with any such claim, charge or proceeding. I hereby represent and warrant that, other than the claims identified in this paragraph, I am not
aware of any claims I have or might have that are not included in the Release. 

 I hereby represent that I have been paid all compensation owed and for all hours worked; I have
received all the leave and leave benefits and protections for which I am eligible pursuant to the Family and Medical Leave Act, or otherwise; and I have not suffered any on-the-job injury for which I have not already filed a workers’
compensation claim. 
 I acknowledge that to become effective, I must sign and return this Release to the Company so that it is received not
later than fourteen (14) days following the date it is provided to me. 
  

			
	PARTICIPANT:
	
	  

	(Signature)
		
	By:	 	  

 
			
		
	Date:EX-4.1

 Exhibit 4.1 

ISOCKET, INC. 
 2009
EQUITY INCENTIVE PLAN 
  

	 	1.	ESTABLISHMENT, PURPOSE AND TERM OF PLAN. 

1.1 Establishment. The isocket, inc. 2009 Equity Incentive Plan (the “Plan”) is hereby established
effective as of August 4, 2009. 
 1.2 Purpose. The purpose of the Plan is to advance the interests of the
Participating Company Group and its stockholders by providing an incentive to attract, retain and reward persons performing services for the Participating Company Group and by motivating such persons to contribute to the growth and profitability of
the Participating Company Group. The Company intends that Awards granted pursuant to the Plan be exempt from or comply with Section 409A of the Code (including any amendments or replacements of such section), and the Plan shall be so construed.

 1.3 Term of Plan. The Plan shall continue in effect until its termination by the Board; provided, however, that all Awards
shall be granted, if at all, within ten (10) years from the earlier of the date the Plan is adopted by the Board or the date the Plan is duly approved by the stockholders of the Company. 

 

	 	2.	DEFINITIONS AND CONSTRUCTION. 

2.1 Definitions. Whenever used herein, the following terms shall have their respective meanings set forth below: 

(a) “Award” means an Option, Restricted Stock Purchase Right or Restricted Stock Bonus granted under the Plan.

 (b) “Award Agreement” means a written or electronic agreement between the Company and a
Participant setting forth the terms, conditions and restrictions of the Award granted to the Participant. 
 (c)
“Board” means the Board of Directors of the Company. If one or more Committees have been appointed by the Board to administer the Plan, “Board” also means such Committee(s).

 (d) “Cause” means, unless such term or an equivalent term is otherwise defined with respect to an
Award by the Participant’s Award Agreement or written contract of employment or service, any of the following: (i) the Participant’s theft, dishonesty, willful misconduct, breach of fiduciary duty for personal profit, or falsification
of any Participating Company documents or records; (ii) the Participant’s material failure to abide by a Participating Company’s code of conduct or other policies (including, without limitation, policies relating to confidentiality
and reasonable workplace conduct); (iii) the Participant’s unauthorized use, misappropriation, destruction or diversion of any tangible or intangible asset or corporate opportunity of a Participating Company (including, without limitation,
the 

 
Participant’s improper use or disclosure of a Participating Company’s confidential or proprietary information); (iv) any intentional act by the Participant which has a material
detrimental effect on a Participating Company’s reputation or business; (v) the Participant’s repeated failure or inability to perform any reasonable assigned duties after written notice from a Participating Company of, and a
reasonable opportunity to cure, such failure or inability; (vi) any material breach by the Participant of any employment or service agreement between the Participant and a Participating Company, which breach is not cured pursuant to the terms
of such agreement; or (vii) the Participant’s conviction (including any plea of guilty or nolo contendere) of any criminal act involving fraud, dishonesty, misappropriation or moral turpitude, or which impairs the Participant’s
ability to perform his or her duties with a Participating Company. 
 (e) “Change in Control” means,
unless such term or an equivalent term is otherwise defined with respect to an Award by the Participant’s Award Agreement or written contract of employment or service, the occurrence of any of the following: 

(i) an Ownership Change Event or a series of related Ownership Change Events (collectively, a
“Transaction”) in which the stockholders of the Company immediately before the Transaction do not retain immediately after the Transaction direct or indirect beneficial ownership of more than fifty percent
(50%) of the total combined voting power of the outstanding securities entitled to vote generally in the election of Directors or, in the case of an Ownership Change Event described in Section 2.1(v)(iii), the entity to which the assets of
the Company were transferred (the “Transferee”), as the case may be; or 
 (ii) the liquidation or
dissolution of the Company. 
 For purposes of the preceding sentence, indirect beneficial ownership shall include, without limitation, an interest
resulting from ownership of the voting securities of one or more corporations or other business entities which own the Company or the Transferee, as the case may be, either directly or through one or more subsidiary corporations or other business
entities. The Board shall have the right to determine whether multiple sales or exchanges of the voting securities of the Company or multiple Ownership Change Events are related, and its determination shall be final, binding and conclusive. 

(f) “Code” means the Internal Revenue Code of 1986, as amended, and any applicable regulations and
administrative guidelines promulgated thereunder. 
 (g) “Committee” means the compensation committee
or other committee or subcommittee of the Board duly appointed to administer the Plan and having such powers as shall be specified by the Board. Unless the powers of the Committee have been specifically limited, the Committee shall have all of the
powers of the Board granted herein, including, without limitation, the power to amend or terminate the Plan at any time, subject to the terms of the Plan and any applicable limitations imposed by law. 

(h) “Company” means isocket, inc., a Delaware corporation, or any successor corporation thereto. 

(i) “Consultant” means a person engaged to provide consulting or advisory services (other than as an
Employee or a Director) to a Participating Company, 

  
 2 

 
provided that the identity of such person, the nature of such services or the entity to which such services are provided would not preclude the Company from offering or selling securities to such
person pursuant to the Plan in reliance on either the exemption from registration provided by Rule 701 under the Securities Act or, if the Company is required to file reports pursuant to Section 13 or 15(d) of the Exchange Act, registration on
a Form S-8 Registration Statement under the Securities Act. 
 (j) “Director” means a member of the
Board. 
 (k) “Disability” means the inability of the Participant, in the opinion of a qualified
physician acceptable to the Company, to perform the major duties of the Participant’s position with the Participating Company Group because of the sickness or injury of the Participant. 

(l) “Employee” means any person treated as an employee (including an Officer or a Director who is also
treated as an employee) in the records of a Participating Company and, with respect to any Incentive Stock Option granted to such person, who is an employee for purposes of Section 422 of the Code; provided, however, that neither service as a
Director nor payment of a director’s fee shall be sufficient to constitute employment for purposes of the Plan. The Company shall determine in good faith and in the exercise of its discretion whether an individual has become or has ceased to be
an Employee and the effective date of such individual’s employment or termination of employment, as the case may be. For purposes of an individual’s rights, if any, under the terms of the Plan as of the time of the Company’s
determination of whether or not the individual is an Employee, all such determinations by the Company shall be final, binding and conclusive as to such rights, if any, notwithstanding that the Company or any court of law or governmental agency
subsequently makes a contrary determination as to such individual’s status as an Employee. 
 (m) “Exchange
Act” means the Securities Exchange Act of 1934, as amended. 
 (n) “Fair Market
Value” means, as of any date, the value of a share of Stock or other property as determined by the Board, in its discretion, or by the Company, in its discretion, if such determination is expressly allocated to the Company
herein, subject to the following: 
 (i) If, on such date, the Stock is listed on a national or regional securities exchange or market
system, the Fair Market Value of a share of Stock shall be the closing price of a share of Stock as quoted on the national or regional securities exchange or market system constituting the primary market for the Stock, as reported in The Wall
Street Journal or such other source as the Company deems reliable. If the relevant date does not fall on a day on which the Stock has traded on such securities exchange or market system, the date on which the Fair Market Value shall be
established shall be the last day on which the Stock was so traded prior to the relevant date, or such other appropriate day as shall be determined by the Board, in its discretion. 

  
 3 

 (ii) If, on such date, the Stock is not listed on a national or regional securities exchange or
market system, the Fair Market Value of a share of Stock shall be as determined by the Board in good faith without regard to any restriction other than a restriction which, by its terms, will never lapse, and in a manner consistent with the
requirements of Section 409A of the Code. 
 (o) “Incentive Stock Option” means an Option
intended to be (as set forth in the Award Agreement) and which qualifies as an incentive stock option within the meaning of Section 422(b) of the Code. 

(p) “Insider” means an Officer, a Director or other person whose transactions in Stock are subject to
Section 16 of the Exchange Act. 
 (q) “Insider Trading Policy” means the written policy of the
Company pertaining to the purchase, sale, transfer or other disposition of the Company’s equity securities by Directors, Officers, Employees or other service providers who may possess material, nonpublic information regarding the Company or its
securities. 
 (r) “Net-Exercise” means a procedure by which (i) the Company will deduct from
the total number of shares of Stock for which a Participant elects to exercise an Option the largest number of whole shares of Stock that does not exceed the aggregate exercise price therefor, (ii) the Participant will pay to the Company in
cash the remaining balance of such aggregate exercise price, and (iii) the Participant will be issued a whole number of shares of Stock upon such exercise determined in accordance with the following formula: 

N = X*((A-B)/A), where 
  

			
		  	 “N” = the number of shares of Stock (rounded down to the nearest whole number) to be issued to the Participant upon exercise of the
Option;
  
 “X” = the total number of shares with respect to which the
Participant has elected to exercise the Option;
  
 “A” = the Fair Market Value
of one (1) share of Stock determined on the exercise date; and
  
 “B” =
the exercise price per share (as defined in the Participant’s Award Agreement)

 (s) “Nonstatutory Stock Option” means an Option not intended to be (as
set forth in the Award Agreement) or which does not qualify as an Incentive Stock Option. 
 (t)
“Officer” means any person designated by the Board as an officer of the Company. 

  
 4 

 (u) “Option” means an Incentive Stock Option or a
Nonstatutory Stock Option granted pursuant to the Plan. 
 (v) “Ownership Change Event” means the
occurrence of any of the following with respect to the Company: (i) the direct or indirect sale or exchange in a single or series of related transactions by the stockholders of the Company of more than fifty percent (50%) of the voting
stock of the Company; (ii) a merger or consolidation in which the Company is a party; or (iii) the sale, exchange, or transfer of all or substantially all of the assets of the Company (other than a sale, exchange or transfer to one or more
subsidiaries of the Company). 
 (w) “Parent Corporation” means any present or future “parent
corporation” of the Company, as defined in Section 424(e) of the Code. 
 (x) “Participant” means any
eligible person who has been granted one or more Awards. 
 (y) “Participating Company” means the
Company or any Parent Corporation or Subsidiary Corporation. 
 (z) “Participating Company Group”
means, at any point in time, all entities collectively which are then Participating Companies. 
 (aa) “Restricted Stock
Award” means an Award of a Restricted Stock Bonus or a Restricted Stock Purchase Right. 
 (bb)
“Restricted Stock Bonus” means Stock granted to a Participant pursuant to Section 7. 
 (cc)
“Restricted Stock Purchase Right” means a right to purchase Stock granted to a Participant pursuant to Section 7. 

(dd) “Rule 16b-3” means Rule 16b-3 under the Exchange Act,
as amended from time to time, or any successor rule or regulation. 
 (ee) “Securities Act” means the
Securities Act of 1933, as amended. 
 (ff) “Service” means a Participant’s employment or
service with the Participating Company Group, whether in the capacity of an Employee, a Director or a Consultant. Unless otherwise provided by the Board, a Participant’s Service shall not be deemed to have terminated merely because of a change
in the capacity in which the Participant renders such Service or a change in the Participating Company for which the Participant renders such Service, provided that there is no interruption or termination of the Participant’s Service.
Furthermore, a Participant’s Service shall not be deemed to have terminated if the Participant takes any military leave, sick leave, or other bona fide leave of absence approved by the Company. However, unless otherwise provided by the Board,
if any such leave taken by a Participant exceeds ninety (90) days, then on the ninety-first (91st) day following the commencement of such leave the Participant’s Service shall be deemed to have terminated, unless the
Participant’s right to return to Service is guaranteed by statute or contract. 

  
 5 

 
Notwithstanding the foregoing, unless otherwise designated by the Company or required by law, an unpaid leave of absence shall not be treated as Service for purposes of determining vesting under
the Participant’s Award Agreement. Except as otherwise provided by the Board, in its discretion, the Participant’s Service shall be deemed to have terminated either upon an actual termination of Service or upon the business entity for
which the Participant performs Service ceasing to be a Participating Company. Subject to the foregoing, the Company, in its discretion, shall determine whether the Participant’s Service has terminated and the effective date of and reason for
such termination. 
 (gg) “Stock” means the common stock of the Company, as adjusted from time to
time in accordance with Section 4.2. 
 (hh) “Subsidiary Corporation” means any present or
future “subsidiary corporation” of the Company, as defined in Section 424(f) of the Code. 
 (ii) “Ten
Percent Stockholder” means a person who, at the time an Award is granted to such person, owns stock possessing more than ten percent (10%) of the total combined voting power of all classes of stock of a Participating Company
within the meaning of Section 422(b)(6) of the Code. 
 (jj) “Vesting Conditions” mean those
conditions established in accordance with the Plan prior to the satisfaction of which shares subject to an Award remain subject to forfeiture or a repurchase option in favor of the Company exercisable for the Participant’s monetary purchase
price, if any, for such shares upon the Participant’s termination of Service. 
 2.2 Construction. Captions and titles contained
herein are for convenience only and shall not affect the meaning or interpretation of any provision of the Plan. Except when otherwise indicated by the context, the singular shall include the plural and the plural shall include the singular. Use of
the term “or” is not intended to be exclusive, unless the context clearly requires otherwise. 
  

	 	3.	ADMINISTRATION. 

3.1 Administration by the Board. The Plan shall be administered by the Board. All questions of interpretation of the Plan, of any
Award Agreement or of any other form of agreement or other document employed by the Company in the administration of the Plan or of any Award shall be determined by the Board, and such determinations shall be final, binding and conclusive upon all
persons having an interest in the Plan or such Award, unless fraudulent or made in bad faith. Any and all actions, decisions and determinations taken or made by the Board in the exercise of its discretion pursuant to the Plan or Award Agreement or
other agreement thereunder (other than determining questions of interpretation pursuant to the preceding sentence) shall be final, binding and conclusive upon all persons having an interest therein. 

3.2 Authority of Officers. Any Officer shall have the authority to act on behalf of the Company with respect to any matter,
right, obligation, determination or election 

  
 6 

 
which is the responsibility of or which is allocated to the Company herein, provided the Officer has apparent authority with respect to such matter, right, obligation, determination or election.

 3.3 Powers of the Board. In addition to any other powers set forth in the Plan and subject to the
provisions of the Plan, the Board shall have the full and final power and authority, in its discretion: 
 (a) to determine the
persons to whom, and the time or times at which, Awards shall be granted and the number of shares of Stock to be subject to each Award; 

(b) to determine the type of Award granted; 

(c) to determine the Fair Market Value of shares of Stock or other property; 

(d) to determine the terms, conditions and restrictions applicable to each Award (which need not be identical) and any shares acquired
pursuant thereto, including, without limitation, (i) the exercise or purchase price of shares pursuant to any Award, (ii) the method of payment for shares purchased pursuant to any Award, (iii) the method for satisfaction of any tax
withholding obligation arising in connection with any Award, including by the withholding or delivery of shares of Stock, (iv) the timing, terms and conditions of the exercisability or vesting of any Award or shares acquired pursuant thereto,
(v) the time of expiration of any Award, (vi) the effect of any Participant’s termination of Service on any of the foregoing, and (vii) all other terms, conditions and restrictions applicable to any Award or shares acquired
pursuant thereto not inconsistent with the terms of the Plan; 
 (e) to approve one or more forms of Award Agreement; 

(f) to amend, modify, extend, cancel or renew any Award or to waive any restrictions or conditions applicable to any Award or any shares
acquired pursuant thereto; 
 (g) to accelerate, continue, extend or defer the exercisability or vesting of any Award or any shares
acquired pursuant thereto, including with respect to the period following a Participant’s termination of Service; 
 (h) to prescribe,
amend or rescind rules, guidelines and policies relating to the Plan, or to adopt sub-plans or supplements to, or alternative versions of, the Plan, including, without limitation, as the Board deems necessary or desirable to comply with the laws of,
or to accommodate the tax policy, accounting principles or custom of, foreign jurisdictions whose citizens may be granted Awards; and 

(i) to correct any defect, supply any omission or reconcile any inconsistency in the Plan or any Award Agreement and to make all other
determinations and take such other actions with respect to the Plan or any Award as the Board may deem advisable to the extent not inconsistent with the provisions of the Plan or applicable law. 

3.4 Administration with Respect to Insiders. With respect to participation by Insiders in the Plan, at any time that any class
of equity security of the Company is registered 

  
 7 

 
pursuant to Section 12 of the Exchange Act, the Plan shall be administered in compliance with the requirements, if any, of Rule 16b-3. 

3.5 Indemnification. In addition to such other rights of indemnification as they may have as members of the Board or as officers
or employees of the Participating Company Group, members of the Board and any officers or employees of the Participating Company Group to whom authority to act for the Board or the Company is delegated shall be indemnified by the Company against all
reasonable expenses, including attorneys’ fees, actually and necessarily incurred in connection with the defense of any action, suit or proceeding, or in connection with any appeal therein, to which they or any of them may be a party by reason
of any action taken or failure to act under or in connection with the Plan, or any right granted hereunder, and against all amounts paid by them in settlement thereof (provided such settlement is approved by independent legal counsel selected by the
Company) or paid by them in satisfaction of a judgment in any such action, suit or proceeding, except in relation to matters as to which it shall be adjudged in such action, suit or proceeding that such person is liable for gross negligence, bad
faith or intentional misconduct in duties; provided, however, that within sixty (60) days after the institution of such action, suit or proceeding, such person shall offer to the Company, in writing, the opportunity at its own expense to handle
and defend the same. 
  

	 	4.	SHARES SUBJECT TO PLAN. 

4.1 Maximum Number of Shares Issuable. Subject to adjustment as provided in Section 4.2, the maximum aggregate number of
shares of Stock that may be issued under the Plan shall be 6,488,939 and shall consist of authorized but unissued or reacquired shares of Stock or any combination thereof. If an outstanding Award for any reason expires or is terminated or canceled
or if shares of Stock are acquired pursuant to an Award subject to forfeiture or repurchase and are forfeited or repurchased by the Company for an amount not greater than the Participant’s exercise or purchase price, the shares of Stock
allocable to the terminated portion of such Award or such forfeited or repurchased shares of Stock shall again be available for issuance under the Plan. Notwithstanding the foregoing, at any such time as the offer and sale of securities pursuant to
the Plan is subject to compliance with Section 260.140.45 of Title 10 of the California Code of Regulations (“Section 260.140.45”), the total number of shares of Stock issuable
upon the exercise of all outstanding Awards (together with options outstanding under any other stock plan of the Company) and the total number of shares provided for under any stock bonus or similar plan of the Company shall not exceed thirty
percent (30%) (or such other higher percentage limitation as may be approved by the stockholders of the Company pursuant to Section 260.140.45) of the then outstanding shares of the Company as calculated in accordance with the conditions
and exclusions of Section 260.140.45. 
 4.2 Adjustments for Changes in Capital Structure.
Subject to any required action by the stockholders of the Company and the requirements of Sections 409A and 424 of the Code to the extent applicable, in the event of any change in the Stock effected without receipt of consideration by the Company,
whether through merger, consolidation, reorganization, reincorporation, recapitalization, reclassification, stock dividend, stock split, reverse stock split, split-up, split-off, spin-off, combination of shares, exchange of shares, or similar change
in the capital structure of the Company, or in the event of payment of a dividend or distribution to the stockholders of the Company in a form other than Stock (excepting normal cash dividends) that

  
 8 

 
has a material effect on the Fair Market Value of shares of Stock, appropriate and proportionate adjustments shall be made in the number and kind of shares subject to the Plan and to any
outstanding Awards, in the ISO Share Limit set forth in Section 5.3(a), and in the exercise or purchase price per share of any outstanding Awards in order to prevent dilution or enlargement of Participants’ rights under the Plan. For
purposes of the foregoing, conversion of any convertible securities of the Company shall not be treated as “effected without receipt of consideration by the Company.” If a majority of the shares which are of the same class as the shares
that are subject to outstanding Awards are exchanged for, converted into, or otherwise become (whether or not pursuant to an Ownership Change Event) shares of another corporation (the “New
Shares”), the Board may unilaterally amend the outstanding Awards to provide that such Awards are for New Shares. In the event of any such amendment, the number of shares subject to, and the exercise or purchase
price per share of, the outstanding Awards shall be adjusted in a fair and equitable manner as determined by the Board, in its discretion. Any fractional share resulting from an adjustment pursuant to this Section shall be rounded down to the
nearest whole number, and the exercise price per share shall be rounded up to the nearest whole cent. In no event may the exercise or purchase price, if any, under any Award be decreased to an amount less than the par value, if any, of the stock
subject to the Award. Such adjustments shall be determined by the Board, and its determination shall be final, binding and conclusive. 
  

	 	5.	ELIGIBILITY AND OPTION LIMITATIONS. 

5.1 Persons Eligible for Awards. Awards may be granted only to Employees, Consultants and Directors. 

5.2 Participation in the Plan. Awards are granted solely at the discretion of the Board. Eligible persons may be granted more
than one Award. However, eligibility in accordance with this Section shall not entitle any person to be granted an Award, or, having been granted an Award, to be granted an additional Award. 

5.3 Incentive Stock Option Limitations. 

(a) Maximum Number of Shares Issuable Pursuant to Incentive Stock Options. Subject to Section 4.1 and adjustment as
provided in Section 4.2, the maximum aggregate number of shares of Stock that may be issued under the Plan pursuant to the exercise of Incentive Stock Options shall not exceed 6,488,939 shares (the “ISO Share
Limit”). The maximum aggregate number of shares of Stock that may be issued under the Plan pursuant to all Awards other than Incentive Stock Options shall be the number of shares determined in accordance with
Section 4.1, subject to adjustment as provided in Section 4.2. 
 (b) Persons Eligible. An Incentive Stock
Option may be granted only to a person who, on the effective date of grant, is an Employee. Any person who is not an Employee on the effective date of the grant of an Option to such person may be granted only a Nonstatutory Stock Option. 

(c) Fair Market Value Limitation. To the extent that options designated as Incentive Stock Options
(granted under all stock plans of the Participating  

  
 9 

 
Company Group, including the Plan) become exercisable by a Participant for the first time during any calendar year for stock having a Fair Market Value greater than One Hundred Thousand Dollars
($100,000), the portions of such options which exceed such amount shall be treated as Nonstatutory Stock Options. For purposes of this Section 5.3, options designated as Incentive Stock Options shall be taken into account in the order in which
they were granted, and the Fair Market Value of stock shall be determined as of the time the option with respect to such stock is granted. If the Code is amended to provide for a limitation different from that set forth in this Section, such
different limitation shall be deemed incorporated herein effective as of the date and with respect to such Options as required or permitted by such amendment to the Code. If an Option is treated as an Incentive Stock Option in part and as a
Nonstatutory Stock Option in part by reason of the limitation set forth in this Section, the Participant may designate which portion of such Option the Participant is exercising. In the absence of such designation, the Participant shall be deemed to
have exercised the Incentive Stock Option portion of the Option first. Upon exercise of the Option, Shares issued pursuant to each such portion shall be separately identified. 

 

	 	6.	STOCK OPTIONS. 

 Options shall be
evidenced by Award Agreements specifying the number of shares of Stock covered thereby, in such form as the Board shall from time to time establish. Such Award Agreements may incorporate all or any of the terms of the Plan by reference and shall
comply with and be subject to the following terms and conditions: 
 6.1 Exercise Price. The exercise price for each
Option shall be established in the discretion of the Board; provided, however, that (a) the exercise price per share for an Option shall be not less than the Fair Market Value of a share of Stock on the effective date of grant of the Option and
(b) no Incentive Stock Option granted to a Ten Percent Stockholder shall have an exercise price per share less than one hundred ten percent (110%) of the Fair Market Value of a share of Stock on the effective date of grant of the Option.
Notwithstanding the foregoing, an Option (whether an Incentive Stock Option or a Nonstatutory Stock Option) may be granted with an exercise price lower than the minimum exercise price set forth above if such Option is granted pursuant to an
assumption or substitution for another option in a manner qualifying under the provisions of Section 424(a) of the Code. 
 6.2
Exercisability and Term of Options. Options shall be exercisable at such time or times, or upon such event or events, and subject to such terms, conditions, performance criteria and restrictions as shall be determined by
the Board and set forth in the Award Agreement evidencing such Option; provided, however, that (a) no Option shall be exercisable after the expiration of ten (10) years after the effective date of grant of such Option and (b) no
Incentive Stock Option granted to a Ten Percent Stockholder shall be exercisable after the expiration of five (5) years after the effective date of grant of such Option. Subject to the foregoing, unless otherwise specified by the Board in the
grant of an Option, any Option granted hereunder shall terminate ten (10) years after the effective date of grant of the Option, unless earlier terminated in accordance with its provisions. 

  
 10 

 6.3 Payment of Exercise Price. 

(a) Forms of Consideration Authorized. Except as otherwise provided below, payment of the exercise price for the
number of shares of Stock being purchased pursuant to any Option shall be made (i) in cash, by check or in cash equivalent, (ii) by tender to the Company, or attestation to the ownership, of shares of Stock owned by the Participant having
a Fair Market Value not less than the exercise price, (iii) by delivery of a properly executed notice of exercise together with irrevocable instructions to a broker providing for the assignment to the Company of the proceeds of a sale or loan
with respect to some or all of the shares being acquired upon the exercise of the Option (including, without limitation, through an exercise complying with the provisions of Regulation T as promulgated from time to time by the Board of
Governors of the Federal Reserve System) (a “Cashless Exercise”), (iv) by delivery of a properly executed notice electing a Net-Exercise, (v) by such other consideration as
may be approved by the Board from time to time to the extent permitted by applicable law, or (vi) by any combination thereof. The Board may at any time or from time to time grant Options which do not permit all of the foregoing forms of
consideration to be used in payment of the exercise price or which otherwise restrict one or more forms of consideration. 

(b) Limitations on Forms of Consideration. 

(i) Tender of Stock. Notwithstanding the foregoing, an Option may not be exercised by tender to the Company, or attestation to
the ownership, of shares of Stock to the extent such tender or attestation would constitute a violation of the provisions of any law, regulation or agreement restricting the redemption of the Company’s stock. 

(ii) Cashless Exercise. The Company reserves, at any and all times, the right, in the Company’s sole and absolute discretion, to
establish, decline to approve or terminate any program or procedures for the exercise of Options by means of a Cashless Exercise, including with respect to one or more Participants specified by the Company notwithstanding that such program or
procedures may be available to other Participants. 
 6.4 Effect of Termination of Service. 

(a) Option Exercisability. Subject to earlier termination of the Option as otherwise
provided by this Plan and unless a longer exercise period is provided by the Board, an Option shall terminate immediately upon the Participant’s termination of Service to the extent that it is then unvested and shall be exercisable after the
Participant’s termination of Service to the extent it is then vested only during the applicable time period determined in accordance with this Section and thereafter shall terminate: 

(i) Disability. If the Participant’s Service terminates because of the Disability of
the Participant, the Option, to the extent unexercised and exercisable for vested shares on the date on which the Participant’s Service terminated, may be exercised by the Participant (or the Participant’s guardian or legal representative)
at any time prior to the expiration of twelve (12) months after the date on which the Participant’s Service terminated, but in any event no later than the date of expiration of the Option’s term as set forth in the Award Agreement
evidencing such Option (the “Option Expiration Date”). 

  
 11 

 (ii) Death. If the Participant’s Service terminates because of the death of
the Participant, the Option, to the extent unexercised and exercisable for vested shares on the date on which the Participant’s Service terminated, may be exercised by the Participant’s legal representative or other person who acquired the
right to exercise the Option by reason of the Participant’s death at any time prior to the expiration of twelve (12) months after the date on which the Participant’s Service terminated, but in any event no later than the Option
Expiration Date. The Participant’s Service shall be deemed to have terminated on account of death if the Participant dies within three (3) months after the Participant’s termination of Service. 

(iii) Termination for Cause. Notwithstanding any other provision of the Plan to the contrary, if the Participant’s Service
is terminated for Cause, the Option shall terminate in its entirety and cease to be exercisable immediately upon such termination of Service. 

(iv) Other Termination of Service. If the Participant’s Service terminates for any reason, except Disability, death or
Cause, the Option, to the extent unexercised and exercisable for vested shares on the date on which the Participant’s Service terminated, may be exercised by the Participant at any time prior to the expiration of three (3) months after the
date on which the Participant’s Service terminated, but in any event no later than the Option Expiration Date. 

(b) Extension if Exercise Prevented by Law. Notwithstanding the foregoing other than
termination of Service for Cause, if the exercise of an Option within the applicable time periods set forth in Section 6.4(a) is prevented by the provisions of Section 11 below, the Option shall remain exercisable until the later of
(i) thirty (30) days after the date such exercise first would no longer be prevented by such provisions or (ii) the end of the applicable time period under Section 6.4(a), but in any event no later than the Option Expiration
Date. 
 6.5 Transferability of Options. During the lifetime of the Participant, an Option shall be exercisable
only by the Participant or the Participant’s guardian or legal representative. An Option shall not be subject in any manner to anticipation, alienation, sale, exchange, transfer, assignment, pledge, encumbrance, or garnishment by creditors of
the Participant or the Participant’s beneficiary, except transfer by will or by the laws of descent and distribution. Notwithstanding the foregoing, to the extent permitted by the Board, in its discretion, and set forth in the Award Agreement
evidencing such Option, an Option shall be assignable or transferable subject to the applicable limitations, if any, described in Rule 701 under the Securities Act and the General Instructions to Form S-8 Registration Statement under the Securities
Act or, in the case of an Incentive Stock Option, only as permitted by applicable regulations under Section 421 of the Code in a manner that does not disqualify such Option as an Incentive Stock Option. 

 

	 	7.	RESTRICTED STOCK AWARDS. 

Restricted Stock Awards shall be evidenced by Award Agreements specifying whether the Award is a Restricted Stock Bonus or a Restricted Stock
Purchase Right and the number of shares of Stock subject to the Award, in such form as the Board shall from time to 

  
 12 

 
time establish. Such Award Agreements may incorporate all or any of the terms of the Plan by reference and shall comply with and be subject to the following terms and conditions: 

7.1 Types of Restricted Stock Awards Authorized. Restricted Stock Awards may be granted in the form of either a Restricted Stock Bonus
or a Restricted Stock Purchase Right. Restricted Stock Awards may be granted upon such conditions as the Board shall determine, including, without limitation, upon the attainment of one or more performance goals. 

7.2 Purchase Price. The purchase price for shares of Stock issuable under each Restricted Stock Purchase Right shall be established by
the Board in its discretion. No monetary payment (other than applicable tax withholding) shall be required as a condition of receiving shares of Stock pursuant to a Restricted Stock Bonus, the consideration for which shall be services actually
rendered to a Participating Company or for its benefit. Notwithstanding the foregoing, if required by applicable state corporate law, the Participant shall furnish consideration in the form of cash or past services rendered to a Participating
Company or for its benefit having a value not less than the par value of the shares of Stock subject to a Restricted Stock Award. 
 7.3
Purchase Period. A Restricted Stock Purchase Right shall be exercisable within a period established by the Board, which shall in no event exceed thirty (30) days from the effective date of the grant of the Restricted Stock Purchase
Right. 
 7.4 Payment of Purchase Price. Except as otherwise provided below, payment of the purchase price for the number of shares
of Stock being purchased pursuant to any Restricted Stock Purchase Right shall be made (a) in cash, by check or in cash equivalent, (b) by such other consideration as may be approved by the Board from time to time to the extent permitted
by applicable law, or (c) by any combination thereof. 
 7.5 Vesting and Restrictions on Transfer. Shares issued pursuant to any
Restricted Stock Award may (but need not) be made subject to Vesting Conditions based upon the satisfaction of such Service requirements, conditions, restrictions or performance criteria, as shall be established by the Board and set forth in the
Award Agreement evidencing such Award. During any period in which shares acquired pursuant to a Restricted Stock Award remain subject to Vesting Conditions, such shares may not be sold, exchanged, transferred, pledged, assigned or otherwise disposed
of other than pursuant to an Ownership Change Event or as provided in Section 7.8. The Board, in its discretion, may provide in any Award Agreement evidencing a Restricted Stock Award that, if the satisfaction of Vesting Conditions with respect
to any shares subject to such Restricted Stock Award would otherwise occur on a day on which the sale of such shares would violate the provisions of the Insider Trading Policy, then satisfaction of the Vesting Conditions automatically shall be
determined on the next trading day on which the sale of such shares would not violate the Insider Trading Policy. Upon request by the Company, each Participant shall execute any agreement evidencing such transfer restrictions prior to the receipt of
shares of Stock hereunder and shall promptly present to the Company any and all certificates representing shares of Stock acquired hereunder for the placement on such certificates of appropriate legends evidencing any such transfer restrictions.

  
 13 

 7.6 Voting Rights; Dividends and Distributions. Except as provided in this Section,
Section 7.5 and any Award Agreement, during any period in which shares acquired pursuant to a Restricted Stock Award remain subject to Vesting Conditions, the Participant shall have all of the rights of a stockholder of the Company holding
shares of Stock, including the right to vote such shares and to receive all dividends and other distributions paid with respect to such shares; provided, however, that if so determined by the Board and provided by the Award Agreement, such dividends
and distributions shall be subject to the same Vesting Conditions as the shares subject to the Restricted Stock Award with respect to which such dividends or distributions were paid. In the event of a dividend or distribution paid in shares of Stock
or other property or any other adjustment made upon a change in the capital structure of the Company as described in Section 4.2, any and all new, substituted or additional securities or other property (other than normal cash dividends) to
which the Participant is entitled by reason of the Participant’s Restricted Stock Award shall be immediately subject to the same Vesting Conditions as the shares subject to the Restricted Stock Award with respect to which such dividends or
distributions were paid or adjustments were made. 
 7.7 Effect of Termination of Service. Unless otherwise provided by the Board in
the Award Agreement evidencing a Restricted Stock Award, if a Participant’s Service terminates for any reason, whether voluntary or involuntary (including the Participant’s death or disability), then (a) the Company shall have the
option to repurchase for the purchase price paid by the Participant any shares acquired by the Participant pursuant to a Restricted Stock Purchase Right which remain subject to Vesting Conditions as of the date of the Participant’s termination
of Service and (b) the Participant shall forfeit to the Company any shares acquired by the Participant pursuant to a Restricted Stock Bonus which remain subject to Vesting Conditions as of the date of the Participant’s termination of
Service. The Company shall have the right to assign at any time any repurchase right it may have, whether or not such right is then exercisable, to one or more persons as may be selected by the Company. 

7.8 Nontransferability of Restricted Stock Award Rights. Rights to acquire shares of Stock pursuant to a Restricted Stock Award shall
not be subject in any manner to anticipation, alienation, sale, exchange, transfer, assignment, pledge, encumbrance or garnishment by creditors of the Participant or the Participant’s beneficiary, except transfer by will or the laws of descent
and distribution. All rights with respect to a Restricted Stock Award granted to a Participant hereunder shall be exercisable during his or her lifetime only by such Participant or the Participant’s guardian or legal representative. 

 

	 	8.	STANDARD FORMS OF AWARD AGREEMENTS. 

8.1 Award Agreements. Each Award shall comply with and be subject to the terms and conditions set forth in
the appropriate form of Award Agreement approved by the Board and as amended from time to time. No Award or purported Award shall be a valid and binding obligation of the Company unless evidenced by a fully executed Award Agreement. Any Award
Agreement may consist of an appropriate form of Notice of Grant and a form of Agreement incorporated therein by reference, or such other form or forms, including electronic media, as the Board may approve from time to time. 

  
 14 

 8.2 Authority to Vary Terms. The Board shall have the
authority from time to time to vary the terms of any standard form of Award Agreement either in connection with the grant or amendment of an individual Award or in connection with the authorization of a new standard form or forms; provided, however,
that the terms and conditions of any such new, revised or amended standard form or forms of Award Agreement are not inconsistent with the terms of the Plan. 
  

	 	9.	CHANGE IN CONTROL. 

9.1 Effect of Change in Control on Awards. Subject to the requirements and limitations of Section 409A
of the Code, if applicable, the Board may provide for any one or more of the following: 
 (a) Accelerated
Vesting. The Board may, in its discretion, provide in any Award Agreement or, in the event of a Change in Control, may take such actions as it deems appropriate to provide for the acceleration of the exercisability and/or vesting in
connection with such Change in Control of each or any outstanding Award or portion thereof and shares acquired pursuant thereto upon such conditions, including termination of the Participant’s Service prior to, upon, or following such Change in
Control, to such extent as the Board shall determine. 
 (b) Assumption, Continuation or Substitution of
Awards. In the event of a Change in Control, the surviving, continuing, successor, or purchasing corporation or other business entity or parent thereof, as the case may be (the “Acquiror”), may, without
the consent of any Participant, assume or continue the Company’s rights and obligations under each or any Award or portion thereof outstanding immediately prior to the Change in Control or substitute for each or any such outstanding Award or
portion thereof a substantially equivalent award with respect to the Acquiror’s stock. For purposes of this Section, if so determined by the Board, in its discretion, an Award or any portion thereof shall be deemed assumed if, following the
Change in Control, the Award confers the right to receive, subject to the terms and conditions of the Plan and the applicable Award Agreement, for each share of Stock subject to such portion of the Award immediately prior to the Change in Control,
the consideration (whether stock, cash, other securities or property or a combination thereof) to which a holder of a share of Stock on the effective date of the Change in Control was entitled; provided, however, that if such consideration is not
solely common stock of the Acquiror, the Board may, with the consent of the Acquiror, provide for the consideration to be received upon the exercise of the Award for each share of Stock to consist solely of common stock of the Acquiror equal in Fair
Market Value to the per share consideration received by holders of Stock pursuant to the Change in Control. If any portion of such consideration may be received by holders of Stock pursuant to the Change in Control on a contingent or delayed basis,
the Board may, in its discretion, determine such Fair Market Value per share as of the time of the Change in Control on the basis of the Board’s good faith estimate of the present value of the probable future payment of such consideration. Any
Award or portion thereof which is neither assumed or continued by the Acquiror in connection with the Change in Control nor exercised as of the time of consummation of the Change in Control shall terminate and cease to be outstanding effective as of
the time of consummation of the Change in Control. Notwithstanding the foregoing, shares acquired upon exercise of an Award prior to the Change in Control and any consideration received pursuant to the Change in Control with respect to such shares
shall continue to be subject to all applicable provisions of the 

  
 15 

 
Award Agreement evidencing such Award except as otherwise provided in such Award Agreement. 

(c) Cash-Out of Outstanding Awards. The Board may, in its discretion and without the consent of any Participant, determine
that, upon the occurrence of a Change in Control, each or any Award or portion thereof outstanding immediately prior to the Change in Control shall be canceled in exchange for a payment with respect to each vested share (and each unvested share, if
so determined by the Board) of Stock subject to such canceled Award in (i) cash, (ii) stock of the Company or of a corporation or other business entity a party to the Change in Control, or (iii) other property which, in any such case,
shall be in an amount having a Fair Market Value equal to the Fair Market Value of the consideration to be paid per share of Stock in the Change in Control, reduced by the exercise or purchase price per share, if any, under such Award. If any
portion of such consideration may be received by holders of Stock pursuant to the Change in Control on a contingent or delayed basis, the Board may, in its sole discretion, determine such Fair Market Value per share as of the time of the Change in
Control on the basis of the Board’s good faith estimate of the present value of the probable amount of future payment of such consideration. In the event such determination is made by the Board, the amount of such payment (reduced by applicable
withholding taxes, if any) shall be paid to Participants in respect of the vested portions of their canceled Awards as soon as practicable following the date of the Change in Control and in respect of the unvested portions of their canceled Awards
in accordance with the vesting schedules applicable to such Awards. 
 9.2 Federal Excise Tax Under Section 4999 of the Code.

 (a) Excess Parachute Payment. If any acceleration of vesting pursuant to an Award and any other payment
or benefit received or to be received by a Participant would subject the Participant to any excise tax pursuant to Section 4999 of the Code due to the characterization of such acceleration of vesting, payment or benefit as an “excess
parachute payment” under Section 280G of the Code, then, provided such election would not subject the Participant to taxation under Section 409A of the Code, the Participant may elect, in his or her sole discretion, to reduce the
amount of any acceleration of vesting called for under the Award in order to avoid such characterization. 

(b) Determination by Independent Accountants. To aid the Participant in making any election called for under
Section 9.2(a), no later than the date of the occurrence of any event that might reasonably be anticipated to result in an “excess parachute payment” to the Participant as described in Section 9.2(a), the Company shall request a
determination in writing by independent public accountants selected by the Company (the “Accountants”). As soon as practicable thereafter, the Accountants shall determine and report
to the Company and the Participant the amount of such acceleration of vesting, payments and benefits which would produce the greatest after-tax benefit to the Participant. For the purposes of such determination, the Accountants may rely on
reasonable, good faith interpretations concerning the application of Sections 280G and 4999 of the Code. The Company and the Participant shall furnish to the Accountants such information and documents as the Accountants may reasonably request in
order to make their required determination. The Company shall bear all fees and expenses the Accountants may reasonably charge in connection with their services contemplated by this Section 9.2(b). 

  
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	 	10.	TAX WITHHOLDING. 

10.1 Tax Withholding in General. The Company shall have the right to deduct from any and all payments made under the Plan, or to
require the Participant, through payroll withholding, cash payment or otherwise, including by means of a Cashless Exercise of an Option, to make adequate provision for, the federal, state, local and foreign taxes (including any social insurance
tax), if any, required by law to be withheld by the Participating Company Group with respect to an Award or the shares acquired pursuant thereto. The Company shall have no obligation to deliver shares of Stock or to release shares of Stock from an
escrow established pursuant to an Award Agreement until the Participating Company Group’s tax withholding obligations have been satisfied by the Participant. 

10.2 Withholding in Shares. The Company shall have the right, but not the obligation, to deduct from the shares of Stock
issuable to a Participant upon the exercise or vesting of an Award, or to accept from the Participant the tender of, a number of whole shares of Stock having a Fair Market Value, as determined by the Company, equal to all or any part of the tax
withholding obligations of the Participating Company Group. The Fair Market Value of any shares of Stock withheld or tendered to satisfy any such tax withholding obligations shall not exceed the amount determined by the applicable minimum statutory
withholding rates. 
  

	 	11.	COMPLIANCE WITH SECURITIES LAW. 

The grant of Awards and the issuance of shares of Stock pursuant to any Award shall be subject to compliance with all applicable requirements
of federal, state and foreign law with respect to such securities and the requirements of any stock exchange or market system upon which the Stock may then be listed. In addition, no Award may be exercised or shares issued pursuant to an Award
unless (a) a registration statement under the Securities Act shall at the time of such exercise or issuance be in effect with respect to the shares issuable pursuant to the Award or (b) in the opinion of legal counsel to the Company, the
shares issuable pursuant to the Award may be issued in accordance with the terms of an applicable exemption from the registration requirements of the Securities Act. The inability of the Company to obtain from any regulatory body having jurisdiction
the authority, if any, deemed by the Company’s legal counsel to be necessary to the lawful issuance and sale of any shares hereunder shall relieve the Company of any liability in respect of the failure to issue or sell such shares as to which
such requisite authority shall not have been obtained. As a condition to issuance of any Stock, the Company may require the Participant to satisfy any qualifications that may be necessary or appropriate, to evidence compliance with any applicable
law or regulation and to make any representation or warranty with respect thereto as may be requested by the Company. 
  

	 	12.	AMENDMENT OR TERMINATION OF PLAN. 

The Board may amend, suspend or terminate the Plan at any time. However, without the approval of the Company’s stockholders, there shall
be (a) no increase in the maximum aggregate number of shares of Stock that may be issued under the Plan (except by operation of the provisions of Section 4.2), (b) no change in the class of persons eligible to receive Incentive Stock
Options, and (c) no other amendment of the Plan that would require approval of the Company’s stockholders under any applicable law, regulation or rule, including 

  
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the rules of any stock exchange or market system upon which the Stock may then be listed. No amendment, suspension or termination of the Plan shall affect any then outstanding Award unless
expressly provided by the Board. Except as provided by the next sentence, no amendment, suspension or termination of the Plan may adversely affect any then outstanding Award without the consent of the Participant. Notwithstanding any other provision
of the Plan or any Award Agreement to the contrary, the Board may, in its sole and absolute discretion and without the consent of any Participant, amend the Plan or any Award Agreement, to take effect retroactively or otherwise, as it deems
necessary or advisable for the purpose of conforming the Plan or such Award Agreement to any present or future law, regulation or rule applicable to the Plan, including, but not limited to, Section 409A of the Code. 

 

	 	13.	MISCELLANEOUS PROVISIONS. 

13.1 Repurchase Rights. Shares issued under the Plan may be subject to a right of first refusal, one or more
repurchase options, or other conditions and restrictions as determined by the Board in its discretion at the time the Award is granted. The Company shall have the right to assign at any time any repurchase right it may have, whether or not such
right is then exercisable, to one or more persons as may be selected by the Company. Upon request by the Company, each Participant shall execute any agreement evidencing such transfer restrictions prior to the receipt of shares of Stock hereunder
and shall promptly present to the Company any and all certificates representing shares of Stock acquired hereunder for the placement on such certificates of appropriate legends evidencing any such transfer restrictions. 

13.2 Provision of Information. At least annually, copies of the Company’s balance sheet and income statement for the just
completed fiscal year shall be made available to each Participant and purchaser of shares of Stock upon the exercise of an Award; provided, however, that this requirement shall not apply if all offers and sales of securities pursuant to the Plan
comply with all applicable conditions of Rule 701 under the Securities Act. The Company shall not be required to provide such information to key persons whose duties in connection with the Company assure them access to equivalent information. The
Company shall deliver to each Participant such disclosures as are required in accordance with Rule 701 under the Securities Act. 

13.3 Rights as Employee, Consultant or Director. No person, even though eligible pursuant to Section 5, shall have a right
to be selected as a Participant, or, having been so selected, to be selected again as a Participant. Nothing in the Plan or any Award granted under the Plan shall confer on any Participant a right to remain an Employee, Consultant or Director or
interfere with or limit in any way any right of a Participating Company to terminate the Participant’s Service at any time. To the extent that an Employee of a Participating Company other than the Company receives an Award under the Plan, that
Award shall in no event be understood or interpreted to mean that the Company is the Employee’s employer or that the Employee has an employment relationship with the Company. 

13.4 Rights as a Stockholder. A Participant shall have no rights as a stockholder with respect to any shares covered by an Award
until the date of the issuance of such shares (as evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company). No adjustment shall be made for dividends,

  
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distributions or other rights for which the record date is prior to the date such shares are issued, except as provided in Section 4.2 or another provision of the Plan. 

13.5 Delivery of Title to Shares. Subject to any governing rules or regulations, the Company shall issue or cause to be issued
the shares of Stock acquired pursuant to an Award and shall deliver such shares to or for the benefit of the Participant by means of one or more of the following: (a) by delivering to the Participant evidence of book entry shares of Stock
credited to the account of the Participant, (b) by depositing such shares of Stock for the benefit of the Participant with any broker with which the Participant has an account relationship, or (c) by delivering such shares of Stock to the
Participant in certificate form. 
 13.6 Fractional Shares. The Company shall not be required to issue fractional
shares upon the exercise or settlement of any Award. 
 13.7 Retirement and Welfare Plans. Neither Awards made under
this Plan nor shares of Stock or cash paid pursuant to such Awards shall be included as “compensation” for purposes of computing the benefits payable to any Participant under any Participating Company’s retirement plans (both
qualified and non-qualified) or welfare benefit plans unless such other plan expressly provides that such compensation shall be taken into account in computing such benefits. 

13.8 Severability. If any one or more of the provisions (or any part thereof) of this Plan shall be held invalid, illegal or
unenforceable in any respect, such provision shall be modified so as to make it valid, legal and enforceable, and the validity, legality and enforceability of the remaining provisions (or any part thereof) of the Plan shall not in any way be
affected or impaired thereby. 
 13.9 No Constraint on Corporate Action. Nothing in this Plan shall be construed to:
(a) limit, impair, or otherwise affect the Company’s or another Participating Company’s right or power to make adjustments, reclassifications, reorganizations, or changes of its capital or business structure, or to merge or
consolidate, or dissolve, liquidate, sell, or transfer all or any part of its business or assets; or (b) limit the right or power of the Company or another Participating Company to take any action which such entity deems to be necessary or
appropriate. 
 13.10 Choice of Law. Except to the extent governed by applicable federal law, the validity,
interpretation, construction and performance of the Plan and each Award Agreement shall be governed by the laws of the State of California, without regard to its conflict of law rules. 

13.11 Stockholder Approval. The Plan or any increase in the maximum aggregate number of
shares of Stock issuable thereunder as provided in Section 4.1 (the “Authorized Shares”) shall be approved by a majority of the outstanding securities of the Company entitled to vote by the later of (a) a period
beginning twelve (12) months before and ending twelve (12) months after the date of adoption thereof by the Board or (b) the first issuance of any security pursuant to the Plan in the State of California (within the meaning of
Section 25008 of the California Corporations Code). Awards granted prior to security holder 

  
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approval of the Plan or in excess of the Authorized Shares previously approved by the security holders shall become exercisable no earlier than the date of security holder
approval of the Plan or such increase in the Authorized Shares, as the case may be, and such Awards shall be rescinded if such security holder approval is not received in the manner described in the preceding sentence. 

  
 20 

 PLAN HISTORY 
  

			
	August 4, 2009	 	Board adopts Plan, with an initial reserve of 6,488,939 shares.
		
	August 4, 2009	 	Stockholders of the Company approve Plan.

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