Document:

EX-10.2

 EXHIBIT 10.2 

ProteinSimple 
 2003
Stock Option/Stock Issuance Plan 
 Notice of Grant of Stock Option 

Notice is hereby given of the following option grant (the “Option”) to purchase shares of the Common Stock of the Corporation: 

 

			
	Optionee:	  	
		
	Grant Date:	  	
		
	Vesting Commencement Date:	  	
		
	Exercise Price: $.        	  	
		
	Number of Option Shares:	  	
		
	Expiration Date:	  	

			
		
	Type of Option:	  	            Incentive Option
		
		  	            Non-Statutory Option

 Date Exercisable: Immediately Exercisable 

Vesting Schedule: Option Shares shall initially be Unvested Shares (i.e., subject to repurchase by the Corporation at the
lower of (a) the Exercise Price paid per share or (b) the Fair Market Value per share on the date the Optionee’s Service ceases). Twenty-five percent of the Option Shares shall become Vested Shares upon Optionee’s
completion of one year of Service measured from the Vesting Commencement Date. The balance of the Option Shares shall become Vested Shares in a series of thirty-six successive equal monthly installments upon Optionee’s completion of each
additional month of Service over the thirty-six month period measured from the first anniversary of the Vesting Commencement Date. 

Optionee understands and agrees that the Option is granted subject to and in accordance with the terms of the ProteinSimple 2003 Stock
Option/Stock Issuance Plan (the “Plan”). Optionee further agrees to be bound by the terms of the Plan and the terms of the Option as set forth in the Stock Option Agreement attached hereto as Exhibit A. 

 Optionee understands that any Option Shares purchased under the Option will be subject to the
terms set forth in the Stock Purchase Agreement attached hereto as Exhibit B. Optionee hereby acknowledges receipt of a copy of the Plan in the form attached hereto as Exhibit C and the Question and Answer Summary in the form attached
hereto as Exhibit D. 
 Repurchase Rights. Optionee hereby agrees that the Option Shares acquired upon the exercise of
the Option may be subject to certain repurchase rights and rights of first refusal exercisable by the Corporation and its assigns. The terms of such rights are specified in the attached Stock Purchase Agreement. 

Prior Agreements. This Notice and the Stock Option Agreement, and the Stock Purchase Agreement when executed will, constitute the
entire agreement and understanding of the Corporation and Optionee with respect to the terms of the Option and supersede all prior and contemporaneous written or verbal agreements and understandings between Optionee and the Corporation relating to
such subject matter. Any and all prior agreements, understandings or representations relating to the Option are terminated and cancelled in their entirety and are of no further force or effect. 

No Right to Continue Service. Nothing in this Notice or in the attached Stock Option Agreement, Stock Purchase Agreement or Plan shall
confer upon Optionee any right to continue in Service for any period of specific duration or interfere with or otherwise restrict in any way the rights of the Corporation (or any Parent or Subsidiary employing or retaining Optionee) or of Optionee,
which rights are hereby expressly reserved by each, to terminate Optionee’s Service at any time for any reason, with or without cause. 

Definitions. All capitalized terms in this Notice shall have the meaning assigned to them in this Notice or in the attached Stock
Option Agreement. 
 Dated: 
  

			
	ProteinSimple
		
	By:	 	  

		
	Name:	 	  

		
	Title:	 	  

	
	Optionee
		
	Signature:	 	  

		
	Printed Name:	 	  

		
		 	  

		
	Address:	 	  

		
		 	  

 ProteinSimple 

2003 Stock Option/Stock Issuance Plan 

Stock Option Agreement 
 A.
The Board has adopted the Plan for the purpose of retaining the services of selected Employees, members of the Board or the board of directors of any Parent or Subsidiary and independent contractors who provide Services to the Corporation (or any
Parent or Subsidiary). 
 B. Optionee is to render valuable services to the Corporation (or a Parent or Subsidiary), and this Agreement is
executed pursuant to, and is intended to carry out the purposes of, the Plan in connection with the Corporation’s grant of an option to Optionee. 

C. All capitalized terms in this Agreement shall have the meaning assigned to them in the attached Appendix. 

Now, Therefore, it is hereby agreed as follows: 

1. Grant of Option. The Corporation hereby grants to Optionee, as of the Grant Date, an option to purchase no more than the
number of Option Shares specified in the Grant Notice. The Option Shares shall be purchasable from time to time during the option term specified in Paragraph 2 at the Exercise Price. 

2. Option Term. This option shall expire on the Expiration Date, unless sooner terminated in accordance with this
Agreement. 
 3. Limited Transferability. 

(a) Except as otherwise provided in this Paragraph 3, this option shall be neither transferable nor assignable by Optionee other than by will
or the laws of inheritance following Optionee’s death and may be exercised, during Optionee’s lifetime, only by Optionee. 
 (b)
If this option is designated a Non-Statutory Option in the Grant Notice, then this option may be assigned in whole or in part during Optionee’s lifetime to one or more of Optionee’s family members (as defined in Rule 701 promulgated by the
Securities and Exchange Commission) or to Optionee’s former spouse through a gift or a domestic relations order. The terms applicable to the assigned portion shall be the same as those in effect for this option immediately prior to such
assignment. 
 4. Dates of Exercise. This option shall become exercisable for the Option Shares as specified in the
Grant Notice. If the option is exercisable in installments, then as the option becomes exercisable for such installments, those installments shall accumulate, and the option shall remain exercisable for the accumulated installments until the
Expiration Date or sooner termination of the option pursuant to this Agreement. 

 5. Cessation of Service. Subject to the special rules of Section 6 below, the
following provisions shall govern the exercise of this option at the time Optionee’s Service ceases: 
 (a) Should Optionee’s
Service cease for any reason other than death, Disability or Misconduct, then this option shall remain exercisable until the earlier of (a) the Close of Business on the three month anniversary of the date Optionee’s Service ceased,
or (b) the Expiration Date. 
 (b) Should Optionee’s Service cease due to death or Disability, then this option shall remain
exercisable until the earlier of (a) the Close of Business on the twelve month anniversary of the date Optionee’s Service ceased, or (b) the Expiration Date. 

(c) During the limited period of post-Service exercisability, this option may only be exercised for Vested Shares. Following Optionee’s
cessation of Service, no additional Option Shares shall vest, except as otherwise specifically provided by the Plan Administrator in its sole discretion pursuant to an written agreement with Optionee. Upon the expiration of such limited exercise
period or (if earlier) upon the Expiration Date, this option shall terminate and cease to be outstanding for any Option Shares for which the option has not been exercised. 

(d) Should Optionee’s Service be terminated for Misconduct or should Optionee otherwise engage in Misconduct, then this option shall
terminate immediately with respect to all Option Shares. 
 6. Change in Control. 

(a) Immediately following the consummation of the Change in Control, this option shall terminate, except to the extent it is assumed by the
successor corporation (or parent thereof) or otherwise continued in effect pursuant to the terms of the Change in Control transaction. 

(b) If this option is assumed in connection with a Change in Control or otherwise continued in effect, then this option shall be
appropriately adjusted, upon such Change in Control, to apply to the number and class of securities which would have been issuable to Optionee in consummation of such Change in Control had the option been exercised immediately prior to such Change
in Control, and appropriate adjustments shall also be made to the Exercise Price, provided the aggregate Exercise Price shall remain the same. To the extent that the holders of Common Stock receive cash consideration for their Common Stock in
consummation of the Change in Control, the successor corporation (or its parent) may, in connection with the assumption of this option, substitute one or more shares of its own common stock with a fair market value equivalent to the cash
consideration paid per share of Common Stock in such Change in Control. 
 (c) This Agreement shall not in any way affect the right of the
Corporation to adjust, reclassify, reorganize or otherwise change its capital or business structure or to merge, consolidate, dissolve, liquidate or sell or transfer all or any part of its business or assets. 

  
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 7. Other Transactions. Should any change be made to the Common Stock by
reason of any stock split, reverse stock split, stock dividend, recapitalization, combination of shares, exchange of shares or other change affecting the outstanding Common Stock as a class without the Corporation’s receipt of consideration,
appropriate adjustments shall be made to (a) the number and/or class of securities subject to this option and (b) the Exercise Price in order to reflect such change and thereby preclude a dilution or enlargement of benefits hereunder. 

8. Stockholder Rights. The holder of this option shall not have any stockholder rights with respect to the Option Shares
until such person shall have exercised the option, paid the Exercise Price and become the holder of record of the purchased Option Shares. 

9. Manner of Exercising Option. 

(a) In order to exercise this option with respect to all or any part of the Option Shares for which this option is at the time exercisable,
Optionee (or any other person or persons permitted to exercise the option) must take the following actions: 
 (i) Execute
and deliver to the Corporation a Purchase Agreement for the Option Shares for which the option is exercised; 
 (ii) Pay the
aggregate Exercise Price for the purchased shares in one or more of the following forms: 
 (A) cash or check made payable
to the Corporation; or 
 (B) a promissory note payable to the Corporation, but only to the extent authorized by the Plan
Administrator in accordance with Paragraph 14. 
 Should the Common Stock be registered under Section 12 of the Exchange
Act at the time the option is exercised, then the Exercise Price may also be paid as follows: 
 (C) in shares of Common
Stock (1) held by Optionee (or any other person or persons permitted to exercise the option) for the requisite period necessary to avoid a charge to the Corporation’s earnings for financial reporting purposes and (2) valued at Fair
Market Value on the Exercise Date; or 
 (D) to the extent the option is exercised for Vested Shares, through a special sale
and remittance procedure pursuant to which Optionee (or any other person or persons permitted to exercise the 

  
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option) shall concurrently provide irrevocable instructions (1) to a Corporation-designated brokerage firm to effect the immediate sale of the purchased shares and remit to the Corporation,
out of the sale proceeds available on the settlement date, sufficient funds to cover the aggregate Exercise Price payable for the purchased shares plus all applicable income and employment taxes required to be withheld by the Corporation by reason
of such exercise and (2) to the Corporation to deliver the certificates for the purchased shares directly to such brokerage firm in order to complete the sale; 

Except to the extent the sale and remittance procedure is utilized in connection with the option exercise, payment of the
Exercise Price must accompany the Purchase Agreement delivered to the Corporation in connection with the option exercise. 

(iii) Furnish to the Corporation appropriate documentation that the person or persons exercising the option (if other than
Optionee) have the right to exercise this option; 
 (iv) Execute and deliver to the Corporation such written
representations as may be requested by the Corporation in order for it to comply with the requirements of applicable securities laws; and 

(v) Make appropriate arrangements with the Corporation (or Parent or Subsidiary employing or retaining Optionee) for the
satisfaction of all income and employment tax withholding requirements applicable to the option exercise. 
 (b) As soon as practical after
the Exercise Date, the Corporation shall issue to or on behalf of Optionee (or any other person or persons permitted to exercise this option) a certificate for the purchased Option Shares, with the appropriate legends affixed thereto. 

(c) In no event may this option be exercised for any fractional shares. 

10. Repurchase Rights. All Option Shares acquired upon the exercise of this option shall be subject
to certain rights of the Corporation and its assigns to repurchase those shares in accordance with the terms specified in the Stock Purchase Agreement. 

11. Compliance with Laws and Regulations. 

(a) The exercise of this option and the issuance of the Option Shares upon such exercise shall be subject to compliance by the Corporation
and Optionee with all applicable requirements of law relating thereto and with all applicable regulations of any applicable stock exchange or quotation system on which the Common Stock may be traded at the time of such exercise and issuance. 

  
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 (b) The inability of the Corporation to obtain approval from any regulatory body having
authority deemed by the Corporation to be necessary to the lawful issuance and sale of any Common Stock pursuant to this option shall relieve the Corporation of any liability with respect to the non-issuance or sale of the Common Stock as to which
such approval shall not have been obtained. 
 12. Successors and Assigns. Except to the extent otherwise provided in
this Agreement, the provisions of this Agreement shall inure to the benefit of, and be binding upon, the Corporation and its successors and assigns and Optionee, Optionee’s permitted assigns, the legal representatives, heirs and legatees of
Optionee’s estate, whether or not any such person shall have become a party to this Agreement or has agreed in writing to join herein and be bound by the terms hereof. 

13. Notices. Any notice required to be given or delivered to the Corporation under the terms of this Agreement shall be
addressed to the Corporation at its principal corporate offices. Any notice required to be given or delivered to Optionee shall be addressed to Optionee at the address indicated below Optionee’s signature line on the Grant Notice or at such
other address as Optionee may designate by ten days advance written notice to the Corporation. Any notice required to be given under this Agreement shall be in writing and shall be deemed effective upon personal delivery or upon the third day
following deposit in the U.S. mail, registered or certified, postage prepaid and properly addressed to the party entitled to such notice. 

14. Financing. The Plan Administrator may, in its absolute discretion and without any obligation to do so, permit
Optionee to pay the Exercise Price for the purchased Option Shares (to the extent such Exercise Price is in excess of the par value of those shares) by delivering a full-recourse, interest bearing promissory note secured by those Option Shares. The
terms of any such promissory note (including the interest rate, the requirements for collateral and the terms of repayment) shall be established by the Plan Administrator in its sole discretion. 

15. Entire Agreement. The Plan is hereby incorporated by reference. This Agreement (and any addendum hereto) and the Plan
constitute the entire agreement between the parties hereto with regard to the subject matter hereof. To the extent there is a conflict between the terms of this Agreement and the terms of the Plan, the terms of this Agreement shall prevail. All
decisions of the Plan Administrator with respect to any question or issue arising under the Plan or this Agreement shall be binding on all persons having an interest in this option. 

16. Amendments. This Agreement may only be amended in an instrument executed by both parties. Approval of the Plan
Administrator is required for all material amendments to this Agreement. 
 17. Governing Law. The interpretation,
performance and enforcement of this Agreement shall be governed by the laws of the State of California without giving effect to that State’s choice-of-law or conflict-of-law rules. 

  
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 18. No Right to Continued Service. Nothing in the Grant Notice, this
Agreement or the Plan shall confer upon Optionee any right to continue in Service for any period of specific duration or interfere with or otherwise restrict in any way the rights of the Corporation (or any Parent or Subsidiary employing or
retaining Optionee) or of Optionee, which rights are hereby expressly reserved by each, to terminate Optionee’s Service at any time for any reason, with or without cause. 

19. Additional Terms Applicable to an Incentive Option. In the event this option is designated an Incentive Option in the
Grant Notice, the following terms and conditions shall also apply to the grant: 
 (a) This option shall cease to qualify for favorable tax
treatment as an Incentive Option if (and to the extent) this option is exercised for one or more Option Shares: (i) more than three months after the date Optionee ceases to be an Employee for any reason other than death or Disability or
(ii) more than twelve months after the date Optionee ceases to be an Employee by reason of Disability. 
 (b) This option shall not
become exercisable in the calendar year in which granted if (and to the extent) the aggregate Fair Market Value (determined at the Grant Date) of the Common Stock for which this option would otherwise first become exercisable in such calendar year
would, when added to the aggregate value (determined as of the respective date or dates of grant) of the Common Stock and any other securities for which one or more other Incentive Options granted to Optionee prior to the Grant Date (whether under
the Plan or any other option plan of the Corporation or any Parent or Subsidiary) first become exercisable during the same calendar year, exceed $100,000 in the aggregate. To the extent the exercisability of this option is deferred by reason of the
foregoing limitation, the deferred portion shall become exercisable in the first calendar year or years thereafter in which the $100,000 limitation of this Section would not be contravened. 

(c) Should Optionee hold, in addition to this option, one or more other options to purchase Common Stock which become exercisable for the
first time in the same calendar year as this option, then the foregoing limitations on the exercisability of such options as Incentive Options shall be applied to the option granted second. 

(d) Optionee shall promptly notify the Corporation if Optionee sells or transfers the Option Shares prior to the second anniversary of the
Grant Date and the first anniversary of the Exercise Date. 
 20. Excess Shares. If the Option Shares covered by this
Agreement exceed, as of the Grant Date, the number of shares of Common Stock which may be issued under the Plan as last approved by the Corporation’s stockholders, then this option shall be void with respect to such excess, unless stockholder
approval of an amendment sufficiently increasing the number of shares of Common Stock issuable under the Plan is obtained in accordance with the provisions of the Plan. The inability of the Corporation to obtain stockholder approval shall not create
any liability for the Corporation. 

  
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 Appendix 

The following definitions shall be in effect under the Agreement: 

A. Agreement shall mean this Stock Option Agreement. 

B. Board shall mean the Corporation’s Board of Directors. 

C. Change in Control shall mean a change in ownership or control of the Corporation effected through any of the following
transactions: 
 (i) a merger, consolidation or other reorganization unless securities representing more than 50% of
the total combined voting power of the voting securities of the successor corporation are immediately thereafter beneficially owned, directly or indirectly and in substantially the same proportion, by the persons who beneficially owned the
Corporation’s outstanding voting securities immediately prior to such transaction; 
 (ii) a sale, transfer or other
disposition of all or substantially all of the Corporation’s assets; or 
 (iii) the acquisition, directly or
indirectly, by any person or related group of persons (other than the Corporation or a person that directly or indirectly controls, is controlled by, or is under common control with, the Corporation), of beneficial ownership (within the meaning of
Rule 13d-3 of the Exchange Act) of securities possessing more than 50% of the total combined voting power of the Corporation’s outstanding securities from a person or persons other than the Corporation. 

In no event shall any public offering of the Corporation’s securities or the sale of newly issued capital stock or debt (including
convertible debt) of the Corporation in a financing transaction be deemed to constitute a Change in Control. 
 D. Close of
Business shall mean the time considered to be the close of business at the Corporation’s headquarters. 
 E.
Code shall mean the Internal Revenue Code of 1986, as amended. 
 F. Common Stock shall mean the
Corporation’s common stock. 
 F. Corporation shall mean ProteinSimple, a Delaware corporation, or any successor to all
or substantially all of the assets or voting stock of ProteinSimple that assumes this option. 
 G. Disability shall mean the
inability of Optionee to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment that is expected to result in death or has lasted or can be expected to last for a continuous period of twelve
months or more. 

  
 A-1 

 H. Employee shall mean an individual who is in the employ of the Corporation (or
any Parent or Subsidiary), subject to the control and direction of the employer entity as to both the work to be performed and the manner and method of performance. 

I. Exchange Act shall mean the Securities Exchange Act of 1934, as amended. 

J. Exercise Date shall mean the date on which the option shall have been exercised in accordance with this Agreement. 

K. Exercise Price shall mean the exercise price payable per Option Share as specified in the Grant Notice. 

L. Expiration Date shall mean the Close of Business on the date on which the option expires as specified in the Grant Notice.

 M. Grant Date shall mean the date of grant of the option as specified in the Grant Notice. 

N. Grant Notice shall mean the Notice of Grant of Stock Option accompanying this Agreement. 

O. Incentive Option shall mean an option that satisfies the requirements of Code Section 422. 

P. Misconduct shall mean (i) the commission of any act of fraud, embezzlement or dishonesty by Optionee, (ii) any
unauthorized use or disclosure by Optionee of confidential information or trade secrets of the Corporation (or any Parent or Subsidiary), or (iii) any other intentional misconduct by Optionee adversely affecting the business or affairs of the
Corporation (or any Parent or Subsidiary) in a material manner; provided, however, that if the term or concept has been defined in an employment agreement between the Corporation and Optionee, then Misconduct shall have the definition
set forth in such employment agreement. The foregoing definition shall not in any way preclude or restrict the right of the Corporation (or any Parent or Subsidiary) to discharge or dismiss Optionee or other person in the Service of the Corporation
(or any Parent or Subsidiary) for any other acts or omissions, but such other acts or omissions shall not be deemed, for purposes of the Plan or this Agreement, to constitute grounds for termination for Misconduct. 

Q. Non-Statutory Option shall mean an option that does not qualify as an Incentive Option. 

R. Option Shares shall mean the shares of Common Stock subject to the option. 

  
 A-2 

 S. Optionee shall mean the person to whom the option is granted as specified in the
Grant Notice. 
 T. Parent shall mean any corporation (other than the Corporation) in an unbroken chain of corporations ending
with the Corporation, provided each corporation in the unbroken chain (other than the Corporation) owns, at the time of the determination, stock possessing 50% or more of the total combined voting power of all classes of stock in one of the other
corporations in such chain. 
 U. Plan shall mean the ProteinSimple 2003 Stock Option/Stock Issuance Plan. 

V. Plan Administrator shall mean either the Board or a committee of the Board acting in its capacity as administrator of the
Plan. 
 W. Purchase Agreement shall mean the stock purchase agreement in substantially the form of Exhibit B to the Grant
Notice. 
 X. Service shall mean Optionee’s performance of services for the Corporation (or any Parent or Subsidiary) in
the capacity of an Employee, a member of the board of directors or an independent contractor. 
 Y. Subsidiary shall mean any
corporation (other than the Corporation) in an unbroken chain of corporations beginning with the Corporation, provided each corporation (other than the last corporation) in the unbroken chain owns, at the time of the determination, stock possessing
50% or more of the total combined voting power of all classes of stock in one of the other corporations in such chain. 
 Z.
Unvested Shares shall mean the Option Shares which have not vested in accordance with the Vesting Schedule applicable to those shares or any special vesting acceleration provisions and which are subject to the Corporation’s
right to repurchase those shares upon termination of Service. 
 AA. Vested Shares shall mean the Option Shares which have
vested in accordance with the Vesting Schedule applicable to those shares or any special vesting acceleration provisions and which are no longer subject to the Corporation’s right to repurchase those shares upon termination of Service. 

BB. Vesting Schedule shall mean the vesting schedule specified in the Grant Notice. 

  
 A-3 

 ProteinSimple 

2003 Stock Option/Stock Issuance Plan 

Stock Purchase Agreement 

Agreement made as of this     day of             ,
        by and between the Corporation and                     (“Optionee”). 

All capitalized terms in this Agreement shall have the meaning assigned to them in this Agreement or in the attached Appendix. 

 

	 	1.	Exercise of Option. 

 (a) Exercise. Optionee hereby
purchases             shares of Common Stock (the “Purchased Shares”) at the exercise price of $            per
share (the “Exercise Price”) pursuant to the exercise of that certain option (the “Option”) granted to Optionee pursuant to the Plan. 

(b) Payment. Concurrently with the delivery of this Agreement to the Corporation, Optionee shall pay the aggregate Exercise Price for
all of the Purchased Shares in accordance with the provisions of the Option Agreement and shall deliver whatever additional documents may be required by the Option Agreement as a condition for exercise, together with a duly-executed blank Assignment
Separate from Certificate (in the form attached hereto as Exhibit I) with respect to the Purchased Shares. 
 (c) Stockholder
Rights. Until such time as the Corporation exercises the Repurchase Right or the First Refusal Right, Optionee (or any successor in interest) shall have all stockholder rights (including voting, dividend and liquidation rights) with respect to
the Purchased Shares, subject, however, to the transfer restrictions imposed by this Agreement. 
  

	 	2.	Securities Law Compliance. 

 (a) Restricted Securities. The Purchased
Shares have not been registered under the 1933 Act and are being issued to Optionee in reliance upon the exemption from such registration provided by Section 4(2) of the 1933 Act or SEC Rule 504, 505, 506 or 701. Optionee hereby confirms that
Optionee has been informed that the Purchased Shares are restricted securities under the 1933 Act and may not be resold or transferred unless the Purchased Shares are first registered under the Federal securities laws or unless an exemption from
such registration is available. Accordingly, Optionee hereby acknowledges that Optionee is acquiring the Purchased Shares for Optionee’s own account and not with a view to or for sale in connection with any distribution of the Purchased Shares.
Optionee is prepared to hold the Purchased Shares for an indefinite period and is aware that SEC Rule 144 issued under the 1933 Act which exempts certain resales of unrestricted securities is not presently available to exempt the resale of the
Purchased Shares from the registration requirements of the 1933 Act. 

 (b) Restrictions on Disposition of Purchased Shares. 

(i) Optionee shall make no disposition of the Purchased Shares (other than a Permitted Transfer) unless and until there is
compliance with all of the following requirements: 
 (A) Optionee shall have provided the Corporation with a written
summary of the terms and conditions of the proposed disposition. 
 (B) Optionee shall have complied with all requirements
of this Agreement applicable to the disposition of the Purchased Shares. 
 (C) Optionee shall have provided the Corporation
with written assurances, in form and substance satisfactory to the Corporation, that (1) the proposed disposition does not require registration of the Purchased Shares under the 1933 Act or (2) all appropriate action necessary for
compliance with the registration requirements of the 1933 Act or any exemption from registration available under the 1933 Act (including Rule 144) has been taken. 

(ii) The Corporation shall not be required (A) to transfer on its books any Purchased Shares which have been sold or
transferred in violation of the provisions of this Agreement or (B) to treat as the owner of the Purchased Shares, or otherwise to accord voting, dividend or liquidation rights to, any transferee to whom the Purchased Shares have been
transferred in contravention of this Agreement. 
 (c) Restrictive Legends. 

(i) The stock certificates representing the Purchased Shares shall be endorsed with one or more restrictive legends
substantially in the following form: 
 “The shares represented by this certificate have not been registered under the Securities Act of
1933. The shares may not be sold or offered for sale in the absence of (A) an effective registration statement for the shares under such Act or (B) satisfactory assurances to the Corporation that registration under such Act is not required
with respect to such sale or offer.” 
 “The shares represented by this certificate are subject to certain repurchase rights and
rights of first refusal granted to the Corporation and accordingly may not be sold, assigned, transferred, encumbered, or in any manner disposed of except in conformity with the terms of a written agreement, dated
            ,         , between the Corporation and the registered holder of the shares (or the predecessor in interest to the shares). A copy of
such agreement is maintained at the Corporation’s principal corporate offices.” 
 (ii) The Corporation shall also
have the right to legend the certificates as required by applicable state laws. 

  
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	 	3.	Transfer Restrictions. 

 (a) Restriction on Transfer. Except for any
Permitted Transfer, (i) Optionee shall not transfer, assign, encumber or otherwise dispose of any of the Unvested Shares and (ii) Optionee shall not transfer, assign, encumber or otherwise dispose of any of the Vested Shares in
contravention of the First Refusal Right, the Market Stand-Off or the transfer restrictions set forth in Section 2. If the Purchased Shares were purchased upon the exercise of an Incentive Option, Optionee shall promptly inform the Corporation
if he or she disposes of any of the shares prior to the second anniversary of the date the option was granted or the first anniversary of the date the option was exercised. 

(b) Transferee Obligations. Each person (other than the Corporation) to whom the Purchased Shares are transferred must, as a condition
precedent to the validity of such transfer, acknowledge in writing to the Corporation that such person is bound by the provisions of this Agreement and that the transferred shares are subject to (i) the Repurchase Right, (ii) the First
Refusal Right, (iii) the Market Stand-Off and (iv) the transfer restrictions set forth in Section 2, to the same extent such shares would be so subject if retained by Optionee. 

(c) Market Stand-Off. 

(i) In connection with the Corporation’s initial public offering and any underwritten public offering by the Corporation
of its equity securities pursuant to an effective registration statement filed under the 1933 Act within two years after the effective date of the Corporation’s initial public offering, Owner shall not sell, make any short sale of, hedge with,
loan, hypothecate, pledge, grant any option for the purchase of, or otherwise dispose or transfer for value or otherwise agree to engage in any of the foregoing transactions with respect to, any Purchased Shares without the prior written consent of
the Corporation or its underwriters (the “Market Stand-Off”). The Market Stand-Off shall be in effect for such period of time from and after the effective date of the final prospectus for the offering as may be requested by the Corporation
or such underwriters; provided, however, that such period shall not exceed one hundred eighty days. 
 (ii) Owner
shall be subject to the Market Stand-Off provided and only if the officers and directors of the Corporation are also subject to similar restrictions. 

(iii) Any new, substituted or additional securities that are by reason of any Recapitalization or Reorganization distributed
with respect to Purchased Shares shall be immediately subject to the Market Stand-Off. 
 (iv) In order to enforce the Market
Stand-Off, the Corporation may impose stop-transfer instructions with respect to Purchased Shares until the end of the applicable stand-off period. 

  
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	 	4.	Repurchase Right. 

 (a) Grant. The Corporation shall have the right (the
“Repurchase Right”) to repurchase, at the Repurchase Price, any or all of the Purchased Shares which are Unvested Shares at the time Optionee’s Service ceases. 

(b) Exercise of the Repurchase Right. The Repurchase Right shall be exercisable by written notice delivered to each Owner of the
Unvested Shares at any time during the sixty day period following the date Optionee ceases for any reason to remain in Service or (if later) during the sixty day period following the execution date of this Agreement. The notice shall indicate the
number of Unvested Shares to be repurchased, the Repurchase Price to be paid per share, and the date on which the repurchase is to be effected, such date to be not more than thirty days after the date of such notice. The certificates representing
the Unvested Shares to be repurchased shall be delivered to the Corporation on the closing date specified for the repurchase. Concurrently with the receipt of such stock certificates, the Corporation shall pay to Owner, in cash or cash equivalents
(including the cancellation of any purchase-money indebtedness), an amount equal to the aggregate Repurchase Price for the Unvested Shares which are to be repurchased from Owner. 

(c) Termination of the Repurchase Right. The Repurchase Right shall terminate with respect to any Unvested Shares for which it is not
timely exercised under Section 4(b). In addition, the Repurchase Right shall terminate and cease to be exercisable as and when the Purchased Shares become Vested Shares. However, all Vested Shares shall be subject to (i) the First Refusal
Right, (ii) the Market Stand Off and (iii) the transfer restrictions set forth in Section 2. 
 (d) Aggregate Vesting
Limitation. If the Option is exercised in more than one increment so that Optionee is a party to other Stock Purchase Agreements (the “Prior Purchase Agreements”) which are executed prior to the date of this Agreement, then the total
number of Purchased Shares as to which Optionee shall be deemed to have a fully-vested interest under this Agreement and all Prior Purchase Agreements shall not exceed in the aggregate the number of Purchased Shares in which Optionee would otherwise
at the time be vested, in accordance with the Vesting Schedule, had all the Purchased Shares (including those acquired under the Prior Purchase Agreements) been acquired exclusively under this Agreement. 

(e) Recapitalization. Any new, substituted or additional securities or other property (including cash paid other than as a regular cash
dividend) which is by reason of any Recapitalization distributed with respect to the Unvested Shares shall be immediately subject to the Repurchase Right and any escrow requirements hereunder. Appropriate adjustments to reflect such distribution
shall be made to the number and/or class of securities subject to this Agreement. In addition, for purposes of determining the Repurchase Price, appropriate adjustments shall be made to the Exercise Price in order to reflect the effect of any such
Recapitalization upon the Corporation’s capital structure; provided, however, that the aggregate Exercise Price shall remain the same. 

  
 4 

 (f) Change in Control. 

(i) In the event of a Change in Control 

(A) the Repurchase Right shall automatically be assigned to the successor entity (or its parent); or 

(B) the Repurchase Right may be otherwise continued in full force and effect pursuant to the terms of the Change in Control
transaction; or 
 (C) any property (including cash payments) issued with respect to Unvested Shares may be held in escrow
and released no later than in accordance with the Vesting Schedule in effect for the Unvested Shares pursuant to the terms of the Change in Control transaction. 

Notwithstanding the foregoing, in the event of a Change in Control the successor corporation (or parent thereof) may elect to
not accept assignment of the Repurchase Right, in which case the Repurchase Right shall terminate automatically and the Unvested Shares shall immediately become Vested Shares upon the Change in Control. 

(ii) To the extent the Repurchase Right remains in effect following a Change in Control, such right shall apply to any new
securities or other property (including any cash payments), if any, received in exchange for the Unvested Shares in consummation of the Change in Control. For purposes of determining the Repurchase Price, appropriate adjustments shall be made to the
Exercise Price to reflect the effect (if any) of the Change in Control upon the Corporation’s capital structure; provided, however, that the aggregate Exercise Price shall remain the same. The new securities or other property (including
any cash payments) issued or distributed with respect to the Unvested Shares in consummation of the Change in Control shall be immediately deposited in escrow with the Corporation (or the successor entity) and shall be released from escrow no later
than as Optionee vests in such securities or other property in accordance with the Vesting Schedule. 
  

	 	5.	Right of First Refusal. 

 (a) Grant. The Corporation shall have the right
of first refusal (the “First Refusal Right”) exercisable in connection with any proposed transfer of Vested Shares. For purposes of this Section 5, the term “transfer” shall include any sale, assignment, pledge, encumbrance
or other disposition of Vested Shares intended to be made by Owner, but shall not include any Permitted Transfer. 
 (b) Notice of
Intended Disposition. In the event any Owner of Vested Shares desires to accept a bona fide third-party offer for the transfer of any or all of such shares (Vested Shares subject to such offer to be hereinafter referred to as the “Target
Shares”), Owner shall promptly (i) deliver to the Corporation written notice (the “Disposition Notice”) of the terms of 

  
 5 

 
the offer, including the purchase price and the identity of the third-party offeror, and (ii) provide satisfactory proof that the disposition of the Target Shares to such third-party offeror
would not be in contravention of the provisions set forth in Sections 2 and 3. 
 (c) Exercise of the First Refusal Right. 

(i) The Corporation shall have the right to repurchase any or all of the Target Shares subject to the Disposition Notice upon
the same terms as those specified therein or upon such other terms (not materially different from those specified in the Disposition Notice) to which Owner consents. Such right shall be exercisable by delivery of written notice (the “Exercise
Notice”) to Owner prior to the twenty-fifth day following the Corporation’s receipt of the Disposition Notice. 

(ii) Should the purchase price specified in the Disposition Notice be payable in property other than cash or evidences of
indebtedness, the Corporation shall have the right to pay the purchase price in the form of cash equal in amount to the value of such property. If Owner and the Corporation cannot agree on such cash value within ten days after the Corporation’s
receipt of the Disposition Notice, the valuation shall be made by an appraiser of recognized standing selected by Owner and the Corporation or, if they cannot agree on an appraiser within twenty days after the Corporation’s receipt of the
Disposition Notice, each shall select an appraiser of recognized standing and the two appraisers shall designate a third appraiser of recognized standing, whose appraisal shall be determinative of such value. Owner and the Corporation shall share
the cost of such appraisal equally. 
 (iii) The closing shall then be held on the later of (A) the fifth
business day following delivery of the Exercise Notice or (B) the fifth business day after such valuation shall have been made. At the closing, the Corporation shall effect the repurchase of such shares, including payment of the aggregate
purchase price, and at such time the certificates representing the Target Shares shall be delivered to the Corporation. 
 (d)
Non-Exercise of the First Refusal Right. In the event the Exercise Notice is not given to Owner prior to the expiration of the twenty-five day exercise period, Owner shall have a period of thirty days thereafter in which to sell or otherwise
dispose of the Target Shares to the third-party offeror identified in the Disposition Notice upon terms (including the purchase price) no more favorable to such third-party offeror than those specified in the Disposition Notice; provided,
however, that any such sale or disposition must not be effected in contravention of the provisions of Sections 2 and 3. The third-party offeror shall acquire the Target Shares subject to the First Refusal Right and the provisions and
restrictions of Section 2 and Section 3(c), and any subsequent disposition of the acquired shares must be effected in compliance with the terms and conditions of such First Refusal Right and the provisions and restrictions of
Section 2 and Section 3(c). In the event Owner does not effect such sale or disposition of the Target Shares within the specified thirty day period, the First Refusal Right shall continue to be applicable to any subsequent disposition of
the Target Shares by Owner until such right lapses. 

  
 6 

 (e) Partial Exercise of the First Refusal Right. In the event the Corporation makes a
timely exercise of the First Refusal Right with respect to a portion, but not all, of the Target Shares specified in the Disposition Notice, Owner shall have the option, exercisable by written notice to the Corporation delivered within five business
days after Owner’s receipt of the Exercise Notice, to effect the sale of the Target Shares pursuant to either of the following alternatives: 

(i) sale or other disposition of some or all the Target Shares to the third-party offeror identified in the Disposition Notice,
but in full compliance with the requirements of Section 5(d), as if the Corporation did not exercise the First Refusal Right; or 

(ii) sale to the Corporation of the portion of the Target Shares which the Corporation has elected to purchase, such sale to be
effected in substantial conformity with the provisions of Section 5(c). The First Refusal Right shall continue to be applicable to any subsequent disposition of the remaining Target Shares until such right lapses. 

Owner’s failure to deliver timely notification to the Corporation shall be deemed to be an election by Owner to sell the Target Shares
pursuant to alternative (i) above. 
 (f) Recapitalization/Reorganization. 

(i) Any new, substituted or additional securities or other property that is by reason of any Recapitalization distributed with
respect to Vested Shares shall be immediately subject to the First Refusal Right. 
 (ii) In the event of a Reorganization,
the First Refusal Right shall remain in full force and effect and shall apply to the new capital stock or other property received in exchange for Vested Shares in consummation of the Reorganization and shall apply to the remaining Unvested Shares as
and when they become Vested Shares. 
 (g) Lapse. The First Refusal Right shall lapse upon the earlier to occur of (i) a
firm commitment underwritten public offering, pursuant to an effective registration statement under the 1933 Act, covering the offer and sale of the Common Stock in the aggregate amount of at least $20,000,000 or (ii) the acquisition of the
Corporation by an entity that is traded on a stock exchange or the Nasdaq Stock Market. However, the Market Stand-Off shall continue to remain in full force and effect following the lapse of the First Refusal Right, in the case of a transaction
described in (i) above. 
  

	 	6.	Special Tax Election. 

 The acquisition of the Purchased Shares may result in
adverse tax consequences that may be avoided or mitigated by filing an election under Code Section 83(b). Such election must be filed with the Internal Revenue Service within thirty days after the date of this Agreement. A description of the
tax consequences applicable to the acquisition of the Purchased 

  
 7 

 
Shares and the form for making the Code Section 83(b) election are set forth in Exhibit II. Optionee should consult with his or her tax advisor to determine the tax consequences of
acquiring the Purchased Shares and the advantages and disadvantages of filing the Code Section 83(b) election. Optionee acknowledges that it is Optionee’s sole responsibility, and not the Corporation’s responsibility, to file a timely
election under Code Section 83(b), even if Optionee requests the Corporation or its representatives to make this filing on his or her behalf. 
  

	 	7.	General Provisions. 

 (a) Assignment. The Corporation may assign the
Repurchase Right and/or the First Refusal Right to any person or entity selected by the Plan Administrator, including (without limitation) one or more stockholders of the Corporation. 

(b) At Will Employment. Nothing in this Agreement or in the Plan shall confer upon Optionee any right to continue in Service for any
period of specific duration or interfere with or otherwise restrict in any way the rights of the Corporation (or any Parent or Subsidiary employing or retaining Optionee) or of Optionee, which rights are hereby expressly reserved by each, to
terminate Optionee’s Service at any time for any reason, with or without cause. 
 (c) Notices. Any notice required to be given
under this Agreement shall be in writing and shall be deemed effective upon personal delivery or on the third day following deposit in the U.S. mail, registered or certified, postage prepaid and properly addressed to the party entitled to such
notice at the address indicated below such party’s signature line on this Agreement or at such other address as such party may designate by ten days advance written notice under this paragraph to all other parties to this Agreement. 

(d) No Waiver. The failure of the Corporation in any instance to exercise the Repurchase Right or the First Refusal Right shall not
constitute a waiver of any other repurchase rights and/or rights of first refusal that may subsequently arise under the provisions of this Agreement or any other agreement between the Corporation and Optionee. No waiver of any breach or condition of
this Agreement shall be deemed to be a waiver of any other or subsequent breach or condition, whether of like or different nature. 
 (e)
Cancellation of Shares. If the Corporation shall make available, at the time and place and in the amount and form provided in this Agreement, the consideration for the Purchased Shares to be repurchased in accordance with the provisions of
this Agreement, then from and after such time, the person from whom such shares are to be repurchased shall no longer have any rights as a holder of such shares (other than the right to receive payment of such consideration in accordance with this
Agreement). Such shares shall be deemed purchased in accordance with the applicable provisions hereof, and the Corporation shall be deemed the owner and holder of such shares, whether or not the certificates therefor have been delivered as required
by this Agreement. 

  
 8 

 (f) Optionee Undertaking. Optionee hereby agrees to take whatever additional action and
execute whatever additional documents the Corporation may deem necessary or advisable in order to carry out or effect one or more of the obligations or restrictions imposed on either Optionee or the Purchased Shares pursuant to the provisions of
this Agreement. 
 (g) Agreement is Entire Contract. The Plan is hereby incorporated by reference. This Agreement (and any addendum
hereto) and the Plan constitute the entire contract between the parties hereto with regard to the subject matter hereof. To the extent there is a conflict between the terms of this Agreement and the terms of the Plan, the terms of this Agreement
shall prevail. All decisions of the Plan Administrator with respect to any question or issue arising under the Plan or this Agreement shall be binding on all persons having an interest in the Purchased Shares. 

(h) Governing Law. The interpretation, performance and enforcement of this Agreement shall be governed by the laws of the State of
California without giving effect to that State’s choice of law or conflict-of-laws rules. 
 (i) Counterparts. This Agreement
may be executed in counterparts, each of which shall be deemed to be an original, but all of which together shall constitute one and the same instrument. 

(j) Successors and Assigns. The provisions of this Agreement shall inure to the benefit of, and be binding upon, the Corporation and
its successors and assigns and upon Optionee, Optionee’s permitted assigns and the legal representatives, heirs and legatees of Optionee’s estate, whether or not any such person shall have become a party to this Agreement and have agreed
in writing to join herein and be bound by the terms hereof. 
 (k) Amendments. This Agreement may only be amended in an instrument
executed by both parties. Approval of the Plan Administrator is required for all material amendments to this Agreement. 

  
 9 

 In Witness Whereof, the parties have executed this Agreement on the day and year first indicated
above. 
  

			
	ProteinSimple
		
	By:	 	  

		
	Name:	 	  

		
	Title:	 	  

		
	Address:	 	  

		
		 	  

	
	Optionee
		
	Signature:	 	  

		
	Printed Name:	 	  

		
	Address:	 	  

		
		 	  

 Spousal Acknowledgment 

The undersigned spouse of Optionee has read and hereby approves the foregoing Stock Purchase Agreement. In consideration of the
Corporation’s granting Optionee the right to acquire the Purchased Shares in accordance with the terms of such Agreement, the undersigned hereby agrees to be irrevocably bound by all the terms of such Agreement, including (without limitation)
the right of the Corporation (or its assigns) to purchase any Purchased Shares in which Optionee is not vested at the time his or her Service ceases. 
  

			
		
	Signature:	 	  

		
	Name:	 	  

		
	Address:	 	  

	
	  

 Exhibit I 

Assignment Separate from Certificate 

For Value Received                     hereby
sell(s), assign(s) and transfer(s) unto ProteinSimple or its successors or assigns (the “Corporation”),
                    (        ) shares of the Common Stock of the Corporation standing in his or her name on
the books of the Corporation represented by Certificate No.             herewith and do(es) hereby irrevocably constitute and appoint
                    as attorney to transfer the said stock on the books of the Corporation with full power of substitution in the premises. 

 

			
	Dated:
		
	Signature:	 	  

		
	Name:	 	  

 Instruction: Please do not fill in any blanks other than the signature line. Please sign exactly as you would
like your name to appear on the issued stock certificate. The purpose of this assignment is to enable the Corporation to exercise the Repurchase Right without requiring additional signatures on the part of Optionee. 

  
 I-1 

 Exhibit II 

FEDERAL INCOME TAX CONSEQUENCES AND SECTION 83(b) TAX ELECTION 

CIRCULAR 230 DISCLAIMER. THE FOLLOWING DISCLAIMER IS PROVIDED IN ACCORDANCE WITH THE INTERNAL REVENUE SERVICE’S CIRCULAR 230 (21 C.F.R.
PART 10). THIS ADVICE IS NOT INTENDED OR WRITTEN TO BE USED, AND IT CANNOT BE USED BY YOU FOR THE PURPOSE OF AVOIDING ANY PENALTIES THAT MAY BE IMPOSED ON YOU. THIS ADVICE WAS WRITTEN TO SUPPORT THE PROMOTION OR MARKETING OF PARTICIPATION IN THE
COMPANY’S EQUITY INCENTIVE PLANS. YOU SHOULD SEEK ADVICE BASED ON YOUR PARTICULAR CIRCUMSTANCES FROM AN INDEPENDENT TAX ADVISOR. 

A. Federal Income Tax Consequences and Section 83(b) Election For Exercise of Non-Statutory Option. If the Purchased
Shares are acquired pursuant to the exercise of a Non-Statutory Option, as specified in the Grant Notice, then under Code Section 83, the excess of the Fair Market Value of the Purchased Shares on the date any forfeiture restrictions applicable
to such shares lapse over the Exercise Price paid for those shares will be reportable as ordinary income on the lapse date. For this purpose, the term “forfeiture restrictions” includes the right of the Corporation to repurchase the
Purchased Shares pursuant to the Repurchase Right. However, Optionee may elect under Code Section 83(b) to be taxed at the time the Purchased Shares are acquired, rather than when and as such Purchased Shares cease to be subject to such
forfeiture restrictions. Such election must be filed with the Internal Revenue Service within thirty days after the date of the Agreement. Even if the Fair Market Value of the Purchased Shares on the date of the Agreement equals the Exercise Price
paid (and thus no tax is payable), the election must be made to avoid potentially adverse tax consequences in the future. The form for making this election is attached as part of this exhibit. Failure to make this filing within the applicable
thirty day period may result in the recognition of ordinary income by Optionee as the forfeiture restrictions lapse. 
 B.
Federal Income Tax Consequences and Conditional Section 83(b) Election For Exercise of Incentive Option. If the Purchased Shares are acquired pursuant to the exercise of an Incentive Option, as specified in the Grant
Notice, then the following tax principles shall be applicable to the Purchased Shares: 
 (i) For regular tax
purposes, no taxable income will be recognized at the time the Option is exercised. 
 (ii) The excess of (a) the Fair
Market Value of the Purchased Shares on the date the Option is exercised or (if later) on the date any forfeiture restrictions applicable to the Purchased Shares lapse over (b) the Exercise Price paid for the Purchased Shares will be includible
in Optionee’s taxable income for alternative minimum tax purposes. 

  
 II-1 

 (iii) If Optionee makes a disqualifying disposition of the Purchased Shares,
then, in most cases, Optionee will recognize ordinary income in the year of such disposition equal in amount to the excess of (a) the Fair Market Value of the Purchased Shares on the date the Option is exercised or (if later) on the date any
forfeiture restrictions applicable to the Purchased Shares lapse over (b) the Exercise Price paid for the Purchased Shares. Any additional gain recognized upon the disqualifying disposition will be either short-term or long-term capital gain
depending upon the period for which the Purchased Shares are held prior to the disposition. 
 (iv) For purposes of the
foregoing, the term “forfeiture restrictions” will include the right of the Corporation to repurchase the Purchased Shares pursuant to the Repurchase Right. The term “disqualifying disposition” means any sale or other disposition1 of the Purchased Shares within either two years after the date the option was granted to Optionee or within one year after the exercise date of the Option. 

(v) In the absence of final Treasury Regulations relating to Incentive Options, it is not certain whether Optionee may, in
connection with the exercise of the Option for any Purchased Shares at the time subject to forfeiture restrictions, file a protective election under Code Section 83(b) which would limit Optionee’s ordinary income upon a disqualifying
disposition to the excess of the Fair Market Value of the Purchased Shares on the date the Option is exercised over the Exercise Price paid for the Purchased Shares. Accordingly, such election if properly filed will only be allowed to the extent the
final Treasury Regulations permit such a protective election. 
 (vi) The Code Section 83(b) election will be effective
in limiting Optionee’s alternative minimum taxable income to the excess of the Fair Market Value of the Purchased Shares at the time the Option is exercised over the Exercise Price paid for those shares. 

Page 2 of the attached form for making the election should be filed with any election made in connection with the exercise of an Incentive
Option. 
  

	1 	Generally, a disposition of shares purchased under an Incentive Option includes any transfer of legal title, including a transfer by sale, exchange or gift, but does not include a transfer to Optionee’s spouse, a
transfer into joint ownership with right of survivorship if Optionee remains one of the joint owners, a pledge, a transfer by bequest or inheritance or certain tax-free exchanges permitted under the Code. 

  
 II-2 

 Section 83(b) Election 

This statement is being made under Section 83(b) of the Internal Revenue Code, pursuant to Treasury Regulation Section 1.83-2. 

 

	(1)	The taxpayer who performed the services is: 

 Name: 

Address: 
 Taxpayer Ident. No.:

  

	(2)	The property with respect to which the election is being made is             shares of the common stock of ProteinSimple 

 

	(3)	The property was issued on             ,         . 

 

	(4)	The taxable year in which the election is being made is the calendar year         . 

  

	(5)	The property is subject to a repurchase right pursuant to which the issuer has the right to acquire the property, at the lower of the original purchase price per share or the fair market value per share, if for any
reason taxpayer’s service with the issuer terminates. The issuer’s repurchase right will lapse in a series of annual and monthly installments over a [five] year period ending on
            ,         . 

  

	(6)	The fair market value at the time of transfer (determined without regard to any restriction other than a restriction which by its terms will never lapse) is $        per share.

  

	(7)	The amount paid for such property is $        per share. 

  

	(8)	A copy of this statement was furnished to ProteinSimple for whom taxpayer rendered the services underlying the transfer of property. 

 

	(9)	This statement is executed on             ,         . 

 

					
	  
	 		 	  

	Spouse (if any)	 		 	Taxpayer

 This election must be filed with the Internal Revenue Service Center with which taxpayer files his or her federal income
tax returns and must be made within thirty days after the execution date of the Stock Purchase Agreement. This filing should be made by registered or certified mail, return receipt requested. Optionee must retain two copies of the completed form for
filing with his or her federal and state tax returns for the current tax year and an additional copy for his or her records. 

 The property described in the above Section 83(b) election is comprised of shares of common
stock acquired pursuant to the exercise of an incentive stock option under Section 422 of the Internal Revenue Code (the “Code”). Accordingly, it is the intent of the Taxpayer to utilize this election to achieve the following tax
results: 
 1. One purpose of this election is to have the alternative minimum taxable income attributable to the purchased shares measured
by the amount by which the fair market value of such shares at the time of their transfer to the Taxpayer exceeds the purchase price paid for the shares. In the absence of this election, such alternative minimum taxable income would be measured by
the spread between the fair market value of the purchased shares and the purchase price which exists on the various lapse dates in effect for the forfeiture restrictions applicable to such shares. 

2. Section 421(a)(1) of the Code expressly excludes from income any excess of the fair market value of the purchased shares over the
amount paid for such shares. Accordingly, this election is also intended to be effective in the event there is a “disqualifying disposition” of the shares, within the meaning of Section 421(b) of the Code, which would otherwise render
the provisions of Section 83(a) of the Code applicable at that time. Consequently, the Taxpayer hereby elects to have the amount of disqualifying disposition income measured by the excess of the fair market value of the purchased shares on the
date of transfer to the Taxpayer over the amount paid for such shares. Since Section 421(a) presently applies to the shares which are the subject of this Section 83(b) election, no taxable income is actually recognized for regular tax
purposes at this time, and no income taxes are payable, by the Taxpayer as a result of this election. The foregoing election is to be effective to the full extent permitted under the Code. 

This page 2 is to be attached to any Section 83(b) election filed in connection with the exercise of an INCENTIVE OPTION under the federal tax laws.

  
 2 

 Appendix 

The following definitions shall be in effect under the Agreement: 

A. Agreement shall mean this Stock Purchase Agreement. 

B. Board shall mean the Corporation’s Board of Directors. 

C. Change in Control shall mean a change in ownership or control of the Corporation effected through any of the following
transactions: 
 (i) a merger, consolidation or other reorganization unless securities representing more than 50% of the
total combined voting power of the voting securities of the successor corporation are immediately thereafter beneficially owned, directly or indirectly and in substantially the same proportion, by the persons who beneficially owned the
Corporation’s outstanding voting securities immediately prior to such transaction; 
 (ii) a sale, transfer or other
disposition of all or substantially all of the Corporation’s assets; or 
 (iii) the acquisition, directly or
indirectly, by any person or related group of persons (other than the Corporation or a person that directly or indirectly controls, is controlled by, or is under common control with, the Corporation), of beneficial ownership (within the meaning of
Rule 13-d3 of the Securities Exchange Act of 1934, as amended) of securities possessing more than 50% of the total combined voting power of the Corporation’s outstanding securities from a person or persons other than the Corporation. 

In no event shall any public offering of the Corporation’s securities or the sale of newly issued capital stock or debt (including
convertible debt) of the Corporation be deemed to constitute a Change in Control. 
 D. Code shall mean the Internal Revenue
Code of 1986, as amended. 
 E. Common Stock shall mean the Corporation’s common stock. 

F. Corporation shall mean ProteinSimple, a Delaware corporation, or the successor to all or substantially all of the assets or
voting stock of ProteinSimple which has assumed some or all of the rights of ProteinSimple under this Agreement. 
 G. Disposition
Notice shall have the meaning assigned to such term in Section 5(b). 
 H. Exercise Notice shall have the meaning
assigned to such term in Section 5(c). 
 I. Exercise Price shall have the meaning assigned to such term in Section 1(a). 

  
 A-1 

 J. First Refusal Right shall mean the right granted to the Corporation in
accordance with Section 5. 
 K. Grant Notice shall mean the Notice of Grant of Stock Option pursuant to which Optionee has
been informed of the basic terms of the Option. 
 L. Incentive Option shall mean an option that satisfies the requirements of
Code Section 422. 
 M. Market Stand-Off shall mean the market stand-off restriction specified in Section 3(c). 

N. 1933 Act shall mean the Securities Act of 1933, as amended. 

O. Non-Statutory Option shall mean an option that does not qualify as an Incentive Option. 

P. Option shall have the meaning assigned to such term in Section 1(a). 

Q. Option Agreement shall mean all agreements and other documents evidencing the Option. 

R. Option Shares shall mean the shares of Common Stock subject to the option. 

S. Optionee shall mean the person to whom the Option is granted under the Plan as identified in the introductory paragraph of
this Agreement. 
 T. Owner shall mean Optionee and all subsequent holders of the Purchased Shares who derive their chain of
ownership through a Permitted Transfer from Optionee. 
 U. Parent shall mean any corporation (other than the Corporation) in
an unbroken chain of corporations ending with the Corporation, provided each corporation in the unbroken chain (other than the Corporation) owns, at the time of the determination, stock possessing 50% or more of the total combined voting power of
all classes of stock in one of the other corporations in such chain. 
 V. Permitted Transfer shall mean (i) a transfer
of the Purchased Shares to one or more of Optionee’s family members (as defined in Rule 701 promulgated by the SEC) or to Optionee’s former spouse through a gift or a domestic relations order, (ii) a transfer of title to the Purchased
Shares effected pursuant to Optionee’s will or the laws of inheritance following Optionee’s death or (iii) a transfer to the Corporation in pledge as security for any purchase-money indebtedness incurred by Optionee in connection with
the acquisition of the Purchased Shares. 
 W. Plan shall mean the ProteinSimple 2003 Stock Option/Stock Issuance Plan. 

  
 A-2 

 X. Plan Administrator shall mean either the Board or a committee of the Board
acting in its capacity as administrator of the Plan. 
 Y. Prior Purchase Agreement shall have the meaning assigned to such
term in Section 4(d). 
 Z. Purchased Shares shall have the meaning assigned to such term in Section 1(a). 

AA. Recapitalization shall mean any stock split, reverse stock split, stock dividend, recapitalization, combination of shares,
exchange of shares or other change affecting the Corporation’s outstanding Common Stock as a class without the Corporation’s receipt of consideration. 

BB. Reorganization shall mean any of the following transactions: 

(i) a merger or consolidation or similar transaction in which the Corporation is not the surviving entity; 

(ii) a sale, transfer or other disposition of all or substantially all of the Corporation’s assets; 

(iii) a reverse merger in which the Corporation is the surviving entity but in which the Corporation’s outstanding voting
securities are transferred in whole or in part to a person or persons different from the persons holding those securities immediately prior to the merger; or 

(iv) any transaction effected primarily to change the state in which the Corporation is incorporated or to create a holding
company structure. 
 CC. Repurchase Price shall mean the lower of (i) the Exercise Price per share or
(ii) the Fair Market Value per share on the date Optionee’s Service ceases. 
 DD. Repurchase Right shall mean the
right granted to the Corporation in accordance with Section 4. 
 EE. SEC shall mean the Securities and Exchange Commission.

 FF. Service shall mean Optionee’s performance of services for the Corporation (or any Parent or Subsidiary) in the
capacity of an employee, subject to the control and direction of the employer entity as to both the work to be performed and the manner and method of performance, a member of the board of directors or an independent contractor. 

GG. Subsidiary shall mean any corporation (other than the Corporation) in an unbroken chain of corporations beginning with the
Corporation, provided each corporation (other than the last corporation) in the unbroken chain owns, at the time of the determination, stock possessing 50% or more of the total combined voting power of all classes of stock in one of the other
corporations in such chain. 

  
 A-3 

 HH. Target Shares shall have the meaning assigned to such term in Section 5(b).

 II. Unvested Shares shall mean the Option Shares which have not vested in accordance with the Vesting Schedule applicable
to those shares or any special vesting acceleration provisions and which are subject to the Repurchase Right. 
 JJ. Vested
Shares shall mean the Option Shares which have vested in accordance with the Vesting Schedule applicable to those shares or any special vesting acceleration provisions and which are no longer subject to the Repurchase Right. 

KK. Vesting Schedule shall mean the vesting schedule specified in the Grant Notice. 

  
 A-4EX-10.3

 EXHIBIT 10.3 

PROTEINSIMPLE 

2013 EQUITY INCENTIVE PLAN 

ADOPTED BY THE BOARD OF DIRECTORS:
APRIL 23, 2013 
 APPROVED BY THE STOCKHOLDERS:
MAY 28, 2013 
 AMENEDED BY THE BOARD OF
DIRECTORS: JANUARY 28, 2014 
 APPROVED BY THE
STOCKHOLDERS:              
 TERMINATION
DATE: APRIL 22, 2023 
 1. GENERAL. 

(a) Successor to and Continuation of Prior Plan. The Plan is intended as the successor to and continuation of the ProteinSimple 2003
Stock Option/Issuance Plan (the “Prior Plan”). Following the Effective Date, no additional stock awards may be granted under the Prior Plan. Any unallocated shares remaining available for issuance pursuant to the exercise of
options or issuance or settlement of stock awards not previously granted under the Prior Plan as of 12:01 a.m. Pacific time on the Effective Date (the “Prior Plan’s Available Reserve”) will cease to be available under
the Prior Plan at such time and will be added to the Share Reserve (as further described in Section 3(a) below) and be then immediately available for issuance pursuant to Stock Awards granted hereunder. In addition, from and after 12:01 a.m.
Pacific time on the Effective Date, all outstanding stock awards granted under the Prior Plan will remain subject to the terms of the Prior Plan; provided, however, that any shares subject to outstanding stock awards granted under the Prior
Plan that (i) expire or terminate for any reason prior to exercise or settlement; (ii) are forfeited, cancelled or otherwise returned because of the failure to meet a contingency or condition required to vest such shares; or (iii) are
reacquired, withheld (or not issued) to satisfy a tax withholding obligation in connection with an award or to satisfy the purchase price or exercise price of a stock award (the “Returning Shares”) will immediately be added
to the Share Reserve (as further described in Section 3(a) below) as and when such shares become Returning Shares, and become available for issuance pursuant to Awards granted hereunder. All Stock Awards granted on or after 12:01 a.m. Pacific
time on the Effective Date of this Plan will be subject to the terms of this Plan. 
 (b) Eligible Stock Award Recipients. Employees,
Directors and Consultants are eligible to receive Stock Awards. 
 (c) Available Stock Awards. The Plan provides for the grant of the
following types of Stock Awards: (i) Incentive Stock Options, (ii) Nonstatutory Stock Options, (iii) Stock Appreciation Rights, (iv) Restricted Stock Awards, (v) Restricted Stock Unit Awards and (vi) Other Stock Awards.

 (d) Purpose. The Plan, through the granting of Stock Awards, is intended to help the Company secure and retain the services of
eligible award recipients, provide incentives for such 

  
 1. 

 
persons to exert maximum efforts for the success of the Company and any Affiliate and provide a means by which the eligible recipients may benefit from increases in value of the Common Stock.

 2. ADMINISTRATION. 

(a) Administration by Board. The Board will administer the Plan. The Board may delegate administration of the Plan to a Committee or
Committees, as provided in Section 2(c). 
 (b) Powers of Board. The Board will have the power, subject to, and within the
limitations of, the express provisions of the Plan: 
 (i) To determine (A) who will be granted Stock Awards; (B) when and
how each Stock Award will be granted; (C) what type of Stock Award will be granted; (D) the provisions of each Stock Award (which need not be identical), including when a person will be permitted to exercise or otherwise receive cash or
Common Stock under the Stock Award; (E) the number of shares of Common Stock subject to a Stock Award; and (F) the Fair Market Value applicable to a Stock Award. 

(ii) To construe and interpret the Plan and Stock Awards granted under it, and to establish, amend and revoke rules and regulations for
administration of the Plan and Stock Awards. The Board, in the exercise of these powers, may correct any defect, omission or inconsistency in the Plan or in any Stock Award Agreement, in a manner and to the extent it will deem necessary or expedient
to make the Plan or Stock Award fully effective. 
 (iii) To settle all controversies regarding the Plan and Stock Awards granted
under it. 
 (iv) To accelerate, in whole or in part, the time at which a Stock Award may be exercised or vest (or at which cash or
shares of Common Stock may be issued), including, but not limited to, the discretionary authority, exercisable either at the time shares are issued pursuant to Section 5(m) below or any time while the Company’s repurchase rights with
respect to those shares remain outstanding, to provide that those rights shall automatically terminate in whole or in part on an accelerated basis, and some or all of the shares subject to those terminated rights shall immediately become vested,
upon the occurrence of a Change in Control or another specified event or in the event that Participant’s Continuous Service terminates other than for Misconduct within a designated period of time following a specified event. 

(v) To suspend or terminate the Plan at any time. Except as otherwise provided in the Plan or a Stock Award Agreement, suspension or
termination of the Plan will not impair a Participant’s rights under his or her then-outstanding Stock Award without his or her written consent except as provided in subsection (viii) below. 

(vi) To amend the Plan in any respect the Board deems necessary or advisable, including, without limitation, by adopting amendments
relating to Incentive Stock Options and certain nonqualified deferred compensation under Section 409A of the Code and/or to make the 

  
 2. 

 
Plan or Stock Awards granted under the Plan compliant with the requirements for Incentive Stock Options or exempt from or compliant with the requirements for nonqualified deferred compensation
under Section 409A of the Code, subject to the limitations, if any, of applicable law. However, if required by applicable law, and except as provided in Section 9(a) relating to Capitalization Adjustments, the Company will seek stockholder
approval of any amendment of the Plan that (A) materially increases the number of shares of Common Stock available for issuance under the Plan, (B) materially expands the class of individuals eligible to receive Stock Awards under the
Plan, (C) materially increases the benefits accruing to Participants under the Plan, (D) materially reduces the price at which shares of Common Stock may be issued or purchased under the Plan, (E) materially extends the term of the
Plan, or (F) materially expands the types of Stock Awards available for issuance under the Plan. Except as provided in the Plan (including subsection (viii) below) or a Stock Award Agreement, no amendment of the Plan will impair a
Participant’s rights under an outstanding Stock Award unless (1) the Company requests the consent of the affected Participant, and (2) such Participant consents in writing. 

(vii) To submit any amendment to the Plan for stockholder approval, including, but not limited to, amendments to the Plan intended to
satisfy the requirements of Section 422 of the Code regarding Incentive Stock Options. 
 (viii) To approve forms of Stock Award
Agreements for use under the Plan and to amend the terms of any one or more Stock Awards, including, but not limited to, amendments to provide terms more favorable to the Participant than previously provided in the Stock Award Agreement, subject to
any specified limits in the Plan that are not subject to Board discretion; provided however, that a Participant’s rights under any Stock Award will not be impaired by any such amendment unless (A) the Company requests the consent of
the affected Participant, and (B) such Participant consents in writing. Notwithstanding the foregoing, subject to the limitations of applicable law, if any, the Board may amend the terms of any one or more Stock Awards without the affected
Participant’s consent (A) to maintain the qualified status of the Stock Award as an Incentive Stock Option under Section 422 of the Code; (B) to clarify the manner of exemption from, or to bring the Stock Award into compliance
with, Section 409A of the Code; or (C) to comply with other applicable laws. 
 (ix) Generally, to exercise such powers and
to perform such acts as the Board deems necessary or expedient to promote the best interests of the Company and that are not in conflict with the provisions of the Plan or Stock Awards. 

(x) To adopt such procedures and sub-plans as are necessary or appropriate to permit participation in the Plan by Employees, Directors
or Consultants who are foreign nationals or employed outside the United States (provided that Board approval will not be necessary for immaterial modifications to the Plan or any Stock Award Agreement that are required for compliance with the laws
of the relevant foreign jurisdiction). 
 (xi) To effect, with the consent of any adversely affected Participant, (A) the
reduction of the exercise, purchase or strike price of any outstanding Stock Award; (B) the cancellation of any outstanding Stock Award and the grant in substitution therefor of a new (1) Option or SAR, (2) Restricted Stock Award,
(3) Restricted Stock Unit Award, (4) Other Stock 

  
 3. 

 
Award, (5) cash and/or (6) other valuable consideration determined by the Board, in its sole discretion, with any such substituted award (x) covering the same or a different number
of shares of Common Stock as the cancelled Stock Award and (y) granted under the Plan or another equity or compensatory plan of the Company; or (C) any other action that is treated as a repricing under generally accepted accounting
principles. 
 (c) Delegation to Committee. The Board may delegate some or all of the administration of the Plan to a Committee or
Committees. If administration of the Plan is delegated to a Committee, the Committee will have, in connection with the administration of the Plan, the powers theretofore possessed by the Board that have been delegated to the Committee, including the
power to delegate to a subcommittee of the Committee any of the administrative powers the Committee is authorized to exercise (and references in this Plan to the Board will thereafter be to the Committee or subcommittee). Any delegation of
administrative powers will be reflected in resolutions, not inconsistent with the provisions of the Plan, adopted from time to time by the Board or Committee (as applicable). The Committee may, at any time, abolish the subcommittee and/or revest in
the Committee any powers delegated to the subcommittee. The Board may retain the authority to concurrently administer the Plan with the Committee and may, at any time, revest in the Board some or all of the powers previously delegated. 

(d) Delegation to an Officer. The Board may delegate to one (1) or more Officers the authority to do one or both of the following:
(i) designate Employees who are not Officers to be recipients of Options and SARs (and, to the extent permitted by applicable law, other Stock Awards) and, to the extent permitted by applicable law, the terms of such Stock Awards, and
(ii) determine the number of shares of Common Stock to be subject to such Stock Awards granted to such Employees; provided, however, that the Board resolutions regarding such delegation will specify the total number of shares of Common Stock
that may be subject to the Stock Awards granted by such Officer and that such Officer may not grant a Stock Award to himself or herself. Any such Stock Awards will be granted on the form of Stock Award Agreement most recently approved for use by the
Committee or the Board, unless otherwise provided in the resolutions approving the delegation authority. The Board may not delegate authority to an Officer who is acting solely in the capacity of an Officer (and not also as a Director) to determine
the Fair Market Value pursuant to Section 13(r) below. 
 (e) Effect of Board’s Decision. All determinations,
interpretations and constructions made by the Board in good faith will not be subject to review by any person and will be final, binding and conclusive on all persons. 

3. SHARES SUBJECT TO THE PLAN. 

(a) Share Reserve.  

(i) Subject to Section 9(a) relating to Capitalization Adjustments, the aggregate number of shares of Common Stock that may be
issued pursuant to Stock Awards from and after the Effective Date will not exceed 7,779,453 shares (the “Share Reserve”). The Share Reserve includes (A) the 584,566 shares that were subject to the Prior
Plan’s Available Reserve on the Effective Date, (B) the Returning Shares, if any, in an amount not to exceed 4,828,887 shares (if and when the Returning Shares ever become available for grant under this Plan) and (C) 2,366,000 shares
approved by the Board of Directors on January 28, 2014. 
 (ii) For clarity, the Share Reserve in this Section 3(a) is a
limitation on the number of shares of Common Stock that may be issued pursuant to the Plan. Accordingly, this Section 3(a) does not limit the granting of Stock Awards except as provided in Section 7(a). 

  
 4. 

 (b) Reversion of Shares to the Share Reserve. If a Stock Award or any portion thereof
(i) expires or otherwise terminates without all of the shares covered by such Stock Award having been issued or (ii) is settled in cash (i.e., the Participant receives cash rather than stock), such expiration, termination or
settlement will not reduce (or otherwise offset) the number of shares of Common Stock that may be available for issuance under the Plan. If any shares of Common Stock issued pursuant to a Stock Award are forfeited back to or repurchased by the
Company because of the failure to meet a contingency or condition required to vest such shares in the Participant, then the shares that are forfeited or repurchased will revert to and again become available for issuance under the Plan. Any shares
reacquired by the Company in satisfaction of tax withholding obligations on a Stock Award or as consideration for the exercise or purchase price of a Stock Award will again become available for issuance under the Plan. 

(c) Incentive Stock Option Limit. Subject to the Share Reserve and Section 9(a) relating to Capitalization Adjustments, the
aggregate maximum number of shares of Common Stock that may be issued pursuant to the exercise of Incentive Stock Options will be 27,193,820 shares of Common Stock. 

(d) Source of Shares. The stock issuable under the Plan will be shares of authorized but unissued or reacquired Common Stock, including
shares repurchased by the Company on the open market or otherwise. 
 4. ELIGIBILITY. 

(a) Eligibility for Specific Stock Awards. Incentive Stock Options may be granted only to employees of the Company or a “parent
corporation” or “subsidiary corporation” thereof (as such terms are defined in Sections 424(e) and 424(f) of the Code). Stock Awards other than Incentive Stock Options may be granted to Employees, Directors and Consultants;
provided, however, that Stock Awards may not be granted to Employees, Directors and Consultants who are providing Continuous Service only to any “parent” of the Company, as such term is defined in Rule 405, unless (i) the
stock underlying such Stock Awards is treated as “service recipient stock” under Section 409A of the Code (for example, because the Stock Awards are granted pursuant to a corporate transaction such as a spin off transaction), or
(ii) the Company, in consultation with its legal counsel, has determined that such Stock Awards are otherwise exempt from or alternatively comply with the distribution requirements of Section 409A of the Code. 

(b) Ten Percent Stockholders. A Ten Percent Stockholder will not be granted an Incentive Stock Option unless the exercise price of such
Option is at least one hundred ten percent (110%) of the Fair Market Value on the date of grant and the Option is not exercisable after the expiration of five (5) years from the date of grant. 

  
 5. 

 (c) Consultants. A Consultant will not be eligible for the grant of a Stock Award if, at
the time of grant, either the offer or sale of the Company’s securities to such Consultant is not exempt under Rule 701 because of the nature of the services that the Consultant is providing to the Company, because the Consultant is not a
natural person, or because of any other provision of Rule 701, unless the Company determines that such grant need not comply with the requirements of Rule 701 and will satisfy another exemption under the Securities Act as well as comply
with the securities laws of all other relevant jurisdictions. 
 5. PROVISIONS RELATING TO
OPTIONS AND STOCK APPRECIATION RIGHTS. 
 Each Option or SAR
will be in such form and will contain such terms and conditions as the Board deems appropriate. All Options will be separately designated Incentive Stock Options or Nonstatutory Stock Options at the time of grant, and, if certificates are issued, a
separate certificate or certificates will be issued for shares of Common Stock purchased on exercise of each type of Option. If an Option is not specifically designated as an Incentive Stock Option, or if an Option is designated as an Incentive
Stock Option but some portion or all of the Option fails to qualify as an Incentive Stock Option under the applicable rules, then the Option (or portion thereof) will be a Nonstatutory Stock Option. The provisions of separate Options or SARs need
not be identical; provided, however, that each Stock Award Agreement will conform to (through incorporation of provisions hereof by reference in the applicable Stock Award Agreement or otherwise) the substance of each of the following
provisions: 
 (a) Term. Subject to the provisions of Section 4(b) regarding Ten Percent Stockholders, no Option or SAR will be
exercisable after the expiration of ten (10) years from the date of its grant or such shorter period specified in the Stock Award Agreement. 

(b) Exercise Price. Subject to the provisions of Section 4(b) regarding Ten Percent Stockholders, the exercise or strike price of
each Option or SAR will be not less than one hundred percent (100%) of the Fair Market Value of the Common Stock subject to the Option or SAR on the date the Stock Award is granted. Notwithstanding the foregoing, an Option or SAR may be granted
with an exercise or strike price lower than one hundred percent (100%) of the Fair Market Value of the Common Stock subject to the Stock Award if such Stock Award is granted pursuant to an assumption of or substitution for another option or
stock appreciation right pursuant to a Change in Control and in a manner consistent with the provisions of Section 409A of the Code and, if applicable, Section 424(a) of the Code. Each SAR will be denominated in shares of Common Stock
equivalents. 
 (c) Purchase Price for Options. The purchase price of Common Stock acquired pursuant to the exercise of an Option may
be paid, to the extent permitted by applicable law and as determined by the Board in its sole discretion, by any combination of the methods of payment set forth below. The Board will have the authority to grant Options that do not permit all of the
following methods of payment (or otherwise restrict the ability to use certain methods) and to grant Options that require the consent of the Company to use a particular method of payment. The permitted methods of payment are as follows: 

(i) by cash, check, bank draft or money order payable to the Company; 

  
 6. 

 (ii) pursuant to a program developed under Regulation T as promulgated by the Federal
Reserve Board that, prior to the issuance of the stock subject to the Option, results in either the receipt of cash (or check) by the Company or the receipt of irrevocable instructions to pay the aggregate exercise price to the Company from the
sales proceeds; 
 (iii) by delivery to the Company (either by actual delivery or attestation) of shares of Common Stock; 

(iv) if an Option is a Nonstatutory Stock Option, by a “net exercise” arrangement pursuant to which the Company will reduce
the number of shares of Common Stock issuable upon exercise by the largest whole number of shares with a Fair Market Value that does not exceed the aggregate exercise price; provided, however, that the Company will accept a cash or other payment
from the Participant to the extent of any remaining balance of the aggregate exercise price not satisfied by such reduction in the number of whole shares to be issued. Shares of Common Stock will no longer be subject to an Option and will not be
exercisable thereafter to the extent that (A) shares issuable upon exercise are used to pay the exercise price pursuant to the “net exercise,” (B) shares are delivered to the Participant as a result of such exercise, and
(C) shares are withheld to satisfy tax withholding obligations; 
 (v) subject to the consent of the Company at the time of
exercise, by delivering an interest bearing promissory note with such terms (including the interest rate, the requirements for collateral and the terms of repayment) as established by the Company in its sole discretion; provided, however, in
no event may the principal amount of the promissory note exceed the sum of (A) the aggregate exercise price for the shares (less the par value of the shares) plus (B) the Participant’s tax withholding obligations, if any; or 

(vi) in any other form of legal consideration that may be acceptable to the Board and specified in the applicable Stock Award
Agreement. 
 (d) Exercise and Payment of a SAR. To exercise any outstanding SAR, the Participant must provide written notice of
exercise to the Company in compliance with the provisions of the Stock Award Agreement evidencing such SAR. The appreciation distribution payable on the exercise of a SAR will be not greater than an amount equal to the excess of (A) the
aggregate Fair Market Value (on the date of the exercise of the SAR) of a number of shares of Common Stock equal to the number of Common Stock equivalents in which the Participant is vested under such SAR, and with respect to which the Participant
is exercising the SAR on such date, over (B) the aggregate strike price of the number of Common Stock equivalents with respect to which the Participant is exercising the SAR on such date. The appreciation distribution may be paid in Common
Stock, in cash, in any combination of the two or in any other form of consideration, as determined by the Board and contained in the Stock Award Agreement evidencing such SAR. 

(e) Transferability of Options and SARs. The Board may, in its sole discretion, impose such limitations on the transferability of
Options and SARs as the Board will determine. In the absence of such a determination by the Board to the contrary, the following restrictions on the transferability of Options and SARs will apply: 

(i) Restrictions on Transfer. An Option or SAR will not be transferable except by will or by the laws of descent and distribution (and
pursuant to subsections (ii) and (iii) below), and will be exercisable during the lifetime of the Participant only by the Participant. The Board may permit transfer of the Option or SAR in a manner that is not prohibited by applicable tax
and securities laws. Except as explicitly provided herein, neither an Option nor a SAR may be transferred for consideration. 

  
 7. 

 (ii) Domestic Relations Orders. Subject to the approval of the Board or a duly authorized
Officer, an Option or SAR may be transferred pursuant to the terms of a domestic relations order, official marital settlement agreement or other divorce or separation instrument as permitted by Treasury Regulation 1.421-1(b)(2). If an Option is an
Incentive Stock Option, such Option may be deemed to be a Nonstatutory Stock Option as a result of such transfer. 
 (iii) Beneficiary
Designation. Subject to the approval of the Board or a duly authorized Officer, a Participant may, by delivering written notice to the Company, in a form approved by the Company (or the designated broker), designate a third party who, upon the
death of the Participant, will thereafter be entitled to exercise the Option or SAR and receive the Common Stock or other consideration resulting from such exercise. In the absence of such a designation, upon the death of the Participant, the
executor or administrator of the Participant’s estate will be entitled to exercise the Option or SAR and receive the Common Stock or other consideration resulting from such exercise. However, the Company may prohibit designation of a
beneficiary at any time, including due to any conclusion by the Company that such designation would be inconsistent with the provisions of applicable laws. 

(f) Vesting Generally. The total number of shares of Common Stock subject to an Option or SAR may vest and become exercisable in
periodic installments that may or may not be equal. The Option or SAR may be subject to such other terms and conditions on the time or times when it may or may not be exercised (which may be based on the satisfaction of performance goals or other
criteria) as the Board may deem appropriate. The vesting provisions of individual Options or SARs may vary. The provisions of this Section 5(f) are subject to any Option or SAR provisions governing the minimum number of shares of Common Stock
as to which an Option or SAR may be exercised. 
 (g) Termination of Continuous Service. Except as otherwise provided in the
applicable Stock Award Agreement or other agreement between the Participant and the Company, if a Participant’s Continuous Service terminates (other than for Misconduct and other than upon the Participant’s death or Disability), the
Participant may exercise his or her Option or SAR (to the extent that the Participant was entitled to exercise such Stock Award as of the date of termination of Continuous Service) within the period of time ending on the earlier of (i) the date
three (3) months following the termination of the Participant’s Continuous Service (or such longer or shorter period specified in the applicable Stock Award Agreement, which period will not be less than thirty (30) days if
necessary to comply with applicable laws unless such termination is for Misconduct and (ii) the expiration of the term of the Option or SAR as set forth in the Stock Award Agreement. If, after termination of Continuous Service, the Participant
does not exercise his or her Option or SAR within the applicable time frame, the Option or SAR (as applicable) will terminate. 

  
 8. 

 (h) Extension of Termination Date. Except as otherwise provided in the applicable Stock
Award Agreement or other agreement between the Participant and the Company, if the exercise of an Option or SAR following the termination of the Participant’s Continuous Service (other than for Misconduct and other than upon the
Participant’s death or Disability) would be prohibited at any time solely because the issuance of shares of Common Stock would violate the registration requirements under the Securities Act, then the Option or SAR will terminate on the earlier
of (i) the expiration of a total period of time (that need not be consecutive) equal to the applicable post termination exercise period after the termination of the Participant’s Continuous Service during which the exercise of the Option
or SAR would not be in violation of such registration requirements, or (ii) the expiration of the term of the Option or SAR as set forth in the applicable Stock Award Agreement. In addition, unless otherwise provided in a Participant’s
Stock Award Agreement, if the sale of any Common Stock received upon exercise of an Option or SAR following the termination of the Participant’s Continuous Service (other than for Misconduct) would violate the Company’s insider trading
policy, then the Option or SAR will terminate on the earlier of (i) the expiration of a period of time (that need not be consecutive) equal to the applicable post-termination exercise period after the termination of the Participant’s
Continuous Service during which the sale of the Common Stock received upon exercise of the Option or SAR would not be in violation of the Company’s insider trading policy, or (ii) the expiration of the term of the Option or SAR as set
forth in the applicable Stock Award Agreement. 
 (i) Disability of Participant. Except as otherwise provided in the applicable Stock
Award Agreement or other agreement between the Participant and the Company, if a Participant’s Continuous Service terminates as a result of the Participant’s Disability, the Participant may exercise his or her Option or SAR (to the extent
that the Participant was entitled to exercise such Option or SAR as of the date of termination of Continuous Service), but only within such period of time ending on the earlier of (i) the date twelve (12) months following such
termination of Continuous Service (or such longer or shorter period specified in the Stock Award Agreement, which period will not be less than six (6) months if necessary to comply with applicable laws), and (ii) the expiration of the
term of the Option or SAR as set forth in the Stock Award Agreement. If, after termination of Continuous Service, the Participant does not exercise his or her Option or SAR within the applicable time frame, the Option or SAR (as applicable) will
terminate. 
 (j) Death of Participant. Except as otherwise provided in the applicable Stock Award Agreement or other agreement
between the Participant and the Company, if (i) a Participant’s Continuous Service terminates as a result of the Participant’s death, or (ii) the Participant dies within the period (if any) specified in the Stock Award Agreement
for exercisability after the termination of the Participant’s Continuous Service (for a reason other than death), then the Option or SAR may be exercised (to the extent the Participant was entitled to exercise such Option or SAR as of the date
of death) by the Participant’s estate, by a person who acquired the right to exercise the Option or SAR by bequest or inheritance or by a person 

  
 9. 

 
designated to exercise the Option or SAR upon the Participant’s death, but only within the period ending on the earlier of (i) the date twelve (12) months following the date of
death (or such longer or shorter period specified in the Stock Award Agreement, which period will not be less than six (6) months if necessary to comply with applicable laws), and (ii) the expiration of the term of such Option or SAR
as set forth in the Stock Award Agreement. If, after the Participant’s death, the Option or SAR is not exercised within the applicable time frame, the Option or SAR (as applicable) will terminate. 

(k) Termination for Misconduct. Except as explicitly provided otherwise in the Participant’s Stock Award Agreement or other
individual written agreement between the Company or any Affiliate and the Participant, if the Participant’s Continuous Service is terminated for Misconduct, the Option or SAR will terminate immediately upon such Participant’s termination
of Continuous Service, and the Participant will be prohibited from exercising his or her Option or SAR from and after the time of such termination of Continuous Service. 

(l) Non-Exempt Employees. If an Option or SAR is granted to an Employee who is a non-exempt employee for purposes of the Fair Labor
Standards Act of 1938, as amended, the Option or SAR will not be first exercisable for any shares of Common Stock until at least six (6) months following the date of grant of the Option or SAR (although the Stock Award may vest prior to such
date). Consistent with the provisions of the Worker Economic Opportunity Act, (i) if such non-exempt Employee dies or suffers a Disability, (ii) upon a Change in Control, or (iii) upon the Participant’s retirement (as such term
may be defined in the Participant’s Stock Award Agreement, in another agreement between the Participant and the Company, or, if no such definition, in accordance with the Company’s then current employment policies and guidelines), the
vested portion of any Options and SARs may be exercised earlier than six (6) months following the date of grant. The foregoing provision is intended to operate so that any income derived by a non-exempt employee in connection with the exercise
or vesting of an Option or SAR will be exempt from his or her regular rate of pay. To the extent permitted and/or required for compliance with the Worker Economic Opportunity Act to ensure that any income derived by a non-exempt employee in
connection with the exercise, vesting or issuance of any shares under any other Stock Award will be exempt from the employee’s regular rate of pay, the provisions of this Section 5(l) will apply to all Stock Awards and are hereby
incorporated by reference into such Stock Award Agreements. 
 (m) Early Exercise of Options. An Option may, but need not, include a
provision whereby the Optionholder may elect at any time before the Optionholder’s Continuous Service terminates to exercise the Option as to any part or all of the shares of Common Stock subject to the Option prior to the full vesting of the
Option. Subject to the “Repurchase Limitation” in Section 8(m), any unvested shares of Common Stock so purchased may be subject to a repurchase right in favor of the Company or to any other restriction the Board determines to be
appropriate. Provided that the “Repurchase Limitation” in Section 8(m) is not violated, the Company will not be required to exercise its repurchase right until at least sixty (60) days (or such longer or shorter period of
time required to avoid classification of the Option as a liability for financial accounting purposes) have elapsed following exercise of the Option unless the Board otherwise specifically provides in the Option Agreement. 

  
 10. 

 (n) Right of Repurchase. Subject to the “Repurchase Limitation” in
Section 8(m), the Option or SAR may include a provision whereby the Company may elect to repurchase all or any part of the vested shares of Common Stock acquired by the Participant pursuant to the exercise of the Option or SAR. 

(o) Right of First Refusal. The Option or SAR may include a provision whereby the Company may elect to exercise a right of first
refusal following receipt of notice from the Participant of the intent to transfer all or any part of the shares of Common Stock received upon the exercise of the Option or SAR. Such right of first refusal will be subject to the
“Repurchase Limitation” in Section 8(m). Except as expressly provided in this Section 5(o) or in the Stock Award Agreement, such right of first refusal will otherwise comply with any applicable provisions of the bylaws of
the Company. 
 6. PROVISIONS OF STOCK AWARDS OTHER THAN
OPTIONS AND SARS. 
 (a) Restricted Stock Awards. Each Restricted Stock Award
Agreement will be in such form and will contain such terms and conditions as the Board deems appropriate. To the extent consistent with the Company’s bylaws, at the Board’s election, shares of Common Stock underlying a Restricted Stock
Award may be (i) held in book entry form subject to the Company’s instructions until any restrictions relating to the Restricted Stock Award lapse; or (ii) evidenced by a certificate, which certificate will be held in such form and
manner as determined by the Board. The terms and conditions of Restricted Stock Award Agreements may change from time to time, and the terms and conditions of separate Restricted Stock Award Agreements need not be identical. Each Restricted Stock
Award Agreement will conform to (through incorporation of the provisions hereof by reference in the agreement or otherwise) the substance of each of the following provisions: 

(i) Consideration. A Restricted Stock Award may be awarded in consideration for (A) cash, check, bank draft or money order payable
to the Company, (B) past services to the Company or an Affiliate, or (C) any other form of legal consideration (including future services) that may be acceptable to the Board, in its sole discretion, and permissible under applicable law.

 (ii) Vesting. Subject to the “Repurchase Limitation” in Section 8(m), shares of Common Stock awarded under the
Restricted Stock Award Agreement may be subject to forfeiture to the Company in accordance with a vesting schedule to be determined by the Board. 

(iii) Termination of Participant’s Continuous Service. If a Participant’s Continuous Service terminates, the Company may
receive through a forfeiture condition or a repurchase right, any or all of the shares of Common Stock held by the Participant that have not vested as of the date of termination of Continuous Service under the terms of the Restricted Stock Award
Agreement. 

  
 11. 

 (iv) Transferability. Rights to acquire shares of Common Stock under the Restricted Stock
Award Agreement will be transferable by the Participant only upon such terms and conditions as are set forth in the Restricted Stock Award Agreement, as the Board will determine in its sole discretion, so long as Common Stock awarded under the
Restricted Stock Award Agreement remains subject to the terms of the Restricted Stock Award Agreement. 
 (v) Dividends. A Restricted
Stock Award Agreement may provide that any dividends paid on Restricted Stock will be subject to the same vesting and forfeiture restrictions as apply to the shares subject to the Restricted Stock Award to which they relate. 

(b) Restricted Stock Unit Awards. Each Restricted Stock Unit Award Agreement will be in such form and will contain such terms and
conditions as the Board deems appropriate. The terms and conditions of Restricted Stock Unit Award Agreements may change from time to time, and the terms and conditions of separate Restricted Stock Unit Award Agreements need not be identical. Each
Restricted Stock Unit Award Agreement will conform to (through incorporation of the provisions hereof by reference in the Agreement or otherwise) the substance of each of the following provisions: 

(i) Consideration. At the time of grant of a Restricted Stock Unit Award, the Board will determine the consideration, if any, to be
paid by the Participant upon delivery of each share of Common Stock subject to the Restricted Stock Unit Award. The consideration to be paid (if any) by the Participant for each share of Common Stock subject to a Restricted Stock Unit Award may be
paid in any form of legal consideration that may be acceptable to the Board, in its sole discretion, and permissible under applicable law. 

(ii) Vesting. At the time of the grant of a Restricted Stock Unit Award, the Board may impose such restrictions on or conditions to the
vesting of the Restricted Stock Unit Award as it, in its sole discretion, deems appropriate. 
 (iii) Payment. A Restricted Stock
Unit Award may be settled by the delivery of shares of Common Stock, their cash equivalent, any combination thereof or in any other form of consideration, as determined by the Board and contained in the Restricted Stock Unit Award Agreement. 

(iv) Additional Restrictions. At the time of the grant of a Restricted Stock Unit Award, the Board, as it deems appropriate, may impose
such restrictions or conditions that delay the delivery of the shares of Common Stock (or their cash equivalent) subject to a Restricted Stock Unit Award to a time after the vesting of such Restricted Stock Unit Award. 

(v) Dividend Equivalents. Dividend equivalents may be credited in respect of shares of Common Stock covered by a Restricted Stock Unit
Award, as determined by the Board and contained in the Restricted Stock Unit Award Agreement. At the sole discretion of the Board, such dividend equivalents may be converted into additional shares of Common Stock covered by the Restricted Stock Unit
Award in such manner as determined by the Board. Any additional shares covered by the Restricted Stock Unit Award credited by reason of such dividend equivalents will be subject to all of the same terms and conditions of the underlying Restricted
Stock Unit Award Agreement to which they relate. 

  
 12. 

 (vi) Termination of Participant’s Continuous Service. Except as otherwise provided in
the applicable Restricted Stock Unit Award Agreement, such portion of the Restricted Stock Unit Award that has not vested will be forfeited upon the Participant’s termination of Continuous Service. 

(vii) Compliance with Section 409A of the Code. Notwithstanding anything to the contrary set forth herein, any Restricted
Stock Unit Award granted under the Plan that is not exempt from the requirements of Section 409A of the Code will contain such provisions so that such Restricted Stock Unit Award will comply with the requirements of Section 409A of the
Code. Such restrictions, if any, will be determined by the Board and contained in the Restricted Stock Unit Award Agreement evidencing such Restricted Stock Unit Award. For example, such restrictions may include, without limitation, a requirement
that any Common Stock that is to be issued in a year following the year in which the Restricted Stock Unit Award vests must be issued in accordance with a fixed pre-determined schedule. 

(c) Other Stock Awards. Other forms of Stock Awards valued in whole or in part by reference to, or otherwise based on, Common Stock,
including the appreciation in value thereof (e.g., options or stock rights with an exercise price or strike price less than one hundred percent (100%) of the Fair Market Value of the Common Stock at the time of grant) may be granted either
alone or in addition to Stock Awards provided for under Section 5 and the preceding provisions of this Section 6. Subject to the provisions of the Plan, the Board will have sole and complete authority to determine the persons to whom and
the time or times at which such Other Stock Awards will be granted, the number of shares of Common Stock (or the cash equivalent thereof) to be granted pursuant to such Other Stock Awards and all other terms and conditions of such Other Stock
Awards. 
 7. COVENANTS OF THE COMPANY. 

(a) Availability of Shares. The Company will keep available at all times the number of shares of Common Stock reasonably required to
satisfy then-outstanding Stock Awards. 
 (b) Securities Law Compliance. The Company will seek to obtain from each regulatory
commission or agency having jurisdiction over the Plan such authority as may be required to grant Stock Awards and to issue and sell shares of Common Stock upon exercise of the Stock Awards; provided, however, that this undertaking will not
require the Company to register under the Securities Act the Plan, any Stock Award or any Common Stock issued or issuable pursuant to any such Stock Award. If, after reasonable efforts and at a reasonable cost, the Company is unable to obtain from
any such regulatory commission or agency the authority that counsel for the Company deems necessary for the lawful issuance and sale of Common Stock under the Plan, the Company will be relieved from any liability for failure to issue and sell Common
Stock upon exercise of such Stock Awards unless and until such authority is obtained. A Participant will not be eligible for the grant of a Stock Award or the subsequent issuance of cash or Common Stock pursuant to the Stock Award if such grant or
issuance would be in violation of any applicable securities law. 

  
 13. 

 (c) No Obligation to Notify or Minimize Taxes. The Company will have no duty or obligation
to any Participant to advise such holder as to the time or manner of exercising such Stock Award. Furthermore, the Company will have no duty or obligation to warn or otherwise advise such holder of a pending termination or expiration of a Stock
Award or a possible period in which the Stock Award may not be exercised. The Company has no duty or obligation to minimize the tax consequences of a Stock Award to the holder of such Stock Award. 

8. MISCELLANEOUS. 
 (a)
Use of Proceeds from Sales of Common Stock. Proceeds from the sale of shares of Common Stock pursuant to Stock Awards will constitute general funds of the Company. 

(b) Corporate Action Constituting Grant of Stock Awards. Corporate action constituting a grant by the Company of a Stock Award to any
Participant will be deemed completed as of the date of such corporate action, unless otherwise determined by the Board, regardless of when the instrument, certificate, or letter evidencing the Stock Award is communicated to, or actually received or
accepted by, the Participant. In the event that the corporate records (e.g., Board consents, resolutions or minutes) documenting the corporate action constituting the grant contain terms (e.g., exercise price, vesting schedule or number of shares)
that are inconsistent with those in the Stock Award Agreement as a result of a clerical error in the papering of the Stock Award Agreement, the corporate records will control and the Participant will have no legally binding right to the incorrect
term in the Stock Award Agreement. 
 (c) Stockholder Rights. No Participant will be deemed to be the holder of, or to have any of
the rights of a holder with respect to, any shares of Common Stock subject to a Stock Award unless and until (i) such Participant has satisfied all requirements for exercise of, or the issuance of shares of Common Stock under, the Stock Award
pursuant to its terms, and (ii) the issuance of the Common Stock subject to the Stock Award has been entered into the books and records of the Company. 

(d) No Employment or Other Service Rights. Nothing in the Plan, any Stock Award Agreement or any other instrument executed thereunder
or in connection with any Stock Award granted pursuant thereto will confer upon any Participant any right to continue to serve the Company or an Affiliate in the capacity in effect at the time the Stock Award was granted or will affect the right of
the Company or an Affiliate to terminate (i) the employment of an Employee with or without notice and with or without Misconduct, (ii) the service of a Consultant pursuant to the terms of such Consultant’s agreement with the Company
or an Affiliate, or (iii) the service of a Director pursuant to the bylaws of the Company or an Affiliate, and any applicable provisions of the corporate law of the state in which the Company or the Affiliate is incorporated, as the case may
be. 

  
 14. 

 (e) Change in Time Commitment. In the event a Participant’s regular level of time
commitment in the performance of his or her services for the Company and any Affiliates is reduced (for example, and without limitation, if the Participant is an Employee of the Company and the Employee has a change in status from a full-time
Employee to a part-time Employee) after the date of grant of any Stock Award to the Participant, the Board has the right in its sole discretion to (x) make a corresponding reduction in the number of shares subject to any portion of such Stock
Award that is scheduled to vest or become payable after the date of such change in time commitment, and (y) in lieu of or in combination with such a reduction, extend the vesting or payment schedule applicable to such Stock Award. In the event
of any such reduction, the Participant will have no right with respect to any portion of the Stock Award that is so reduced or extended. 

(f) Incentive Stock Option Limitations. To the extent that the aggregate Fair Market Value (determined at the time of grant) of Common
Stock with respect to which Incentive Stock Options are exercisable for the first time by any Optionholder during any calendar year (under all plans of the Company and any Affiliates) exceeds one hundred thousand dollars ($100,000) (or such
other limit established in the Code) or otherwise does not comply with the rules governing Incentive Stock Options, the Options or portions thereof that exceed such limit (according to the order in which they were granted) or otherwise do not comply
with such rules will be treated as Nonstatutory Stock Options, notwithstanding any contrary provision of the applicable Option Agreement(s). 

(g) Investment Assurances. The Company may require a Participant, as a condition of exercising or acquiring Common Stock under any
Stock Award, (i) to give written assurances satisfactory to the Company as to the Participant’s knowledge and experience in financial and business matters and/or to employ a purchaser representative reasonably satisfactory to the Company
who is knowledgeable and experienced in financial and business matters and that he or she is capable of evaluating, alone or together with the purchaser representative, the merits and risks of exercising the Stock Award; and (ii) to give
written assurances satisfactory to the Company stating that the Participant is acquiring Common Stock subject to the Stock Award for the Participant’s own account and not with any present intention of selling or otherwise distributing the
Common Stock. The foregoing requirements, and any assurances given pursuant to such requirements, will be inoperative if (A) the issuance of the shares upon the exercise or acquisition of Common Stock under the Stock Award has been registered
under a then currently effective registration statement under the Securities Act, or (B) as to any particular requirement, a determination is made by counsel for the Company that such requirement need not be met in the circumstances under the
then applicable securities laws. The Company may, upon advice of counsel to the Company, place legends on stock certificates issued under the Plan as such counsel deems necessary or appropriate in order to comply with applicable securities laws,
including, but not limited to, legends restricting the transfer of the Common Stock. 
 (h) Withholding Obligations. Unless
prohibited by the terms of a Stock Award Agreement, the Company may, in its sole discretion, satisfy any federal, state or local tax withholding obligation relating to a Stock Award by any of the following means or by a combination of such means:
(i) causing the Participant to tender a cash payment; (ii) withholding 

  
 15. 

 
shares of Common Stock from the shares of Common Stock issued or otherwise issuable to the Participant in connection with the Stock Award; provided, however, that no shares of Common Stock
are withheld with a value exceeding the minimum amount of tax required to be withheld by law (or such lesser amount as may be necessary to avoid classification of the Stock Award as a liability for financial accounting purposes);
(iii) withholding cash from a Stock Award settled in cash; (iv) withholding payment from any amounts otherwise payable to the Participant; or (v) by such other method as may be set forth in the Stock Award Agreement. 

(i) Electronic Delivery. Any reference herein to a “written” agreement or document will include any agreement or document
delivered electronically or posted on the Company’s intranet (or other shared electronic medium controlled by the Company to which the Participant has access). 

(j) Deferrals. To the extent permitted by applicable law, the Board, in its sole discretion, may determine that the delivery of Common
Stock or the payment of cash, upon the exercise, vesting or settlement of all or a portion of any Stock Award may be deferred and may establish programs and procedures for deferral elections to be made by Participants. Deferrals by Participants will
be made in accordance with Section 409A of the Code. Consistent with Section 409A of the Code, the Board may provide for distributions while a Participant is still an employee or otherwise providing services to the Company. The Board is
authorized to make deferrals of Stock Awards and determine when, and in what annual percentages, Participants may receive payments, including lump sum payments, following the Participant’s termination of Continuous Service, and implement such
other terms and conditions consistent with the provisions of the Plan and in accordance with applicable law. 
 (k) Compliance with
Section 409A of the Code. To the extent that the Board determines that any Stock Award granted hereunder is subject to Section 409A of the Code, the Stock Award Agreement evidencing such Stock Award will incorporate the terms and
conditions necessary to avoid the consequences specified in Section 409A(a)(1) of the Code. To the extent applicable, the Plan and Stock Award Agreements will be interpreted in accordance with Section 409A of the Code. 

(l) Repurchase Limitation. The terms of any repurchase right will be specified in the Stock Award Agreement. The repurchase price for
vested shares of Common Stock will be the Fair Market Value of the shares of Common Stock on the date of repurchase. The repurchase price for unvested shares of Common Stock will be the lower of (i) the Fair Market Value of the shares of Common
Stock on the date of repurchase or (ii) their original purchase price. However, the Company will not exercise its repurchase right until at least sixty (60) days (or such longer or shorter period of time necessary to avoid classification
of the Stock Award as a liability for financial accounting purposes) have elapsed following delivery of shares of Common Stock subject to the Stock Award, unless otherwise specifically provided by the Board. 

  
 16. 

 9. ADJUSTMENTS UPON CHANGES IN
COMMON STOCK; OTHER CORPORATE EVENTS. 
 (a)
Capitalization Adjustments. In the event of a Capitalization Adjustment, the Board will appropriately and proportionately adjust: (i) the class(es) and maximum number of securities subject to the Plan pursuant to Section 3(a),
(ii) the class(es) and maximum number of securities that may be issued pursuant to the exercise of Incentive Stock Options pursuant to Section 3(c), and (iii) the class(es) and number of securities and price per share of stock subject
to outstanding Stock Awards. The Board will make such adjustments, and its determination will be final, binding and conclusive. 
 (b)
Dissolution or Liquidation. Except as otherwise provided in the Stock Award Agreement, in the event of a dissolution or liquidation of the Company, all outstanding Stock Awards (other than Stock Awards consisting of vested and outstanding shares
of Common Stock not subject to a forfeiture condition or the Company’s right of repurchase) will terminate immediately prior to the completion of such dissolution or liquidation, and the shares of Common Stock subject to the Company’s
repurchase rights or subject to a forfeiture condition may be repurchased or reacquired by the Company notwithstanding the fact that the holder of such Stock Award is providing Continuous Service, provided, however, that the Board may, in its
sole discretion, cause some or all Stock Awards to become fully vested, exercisable and/or no longer subject to repurchase or forfeiture (to the extent such Stock Awards have not previously expired or terminated) before the dissolution or
liquidation is completed but contingent on its completion. 
 (c) Change in Control. The following provisions will apply to Stock
Awards in the event of a Change in Control unless otherwise provided in the Stock Award Agreement or any other written agreement between the Company or any Affiliate and the Participant or unless otherwise expressly provided by the Board at the time
of grant of a Stock Award. 
 (i) Options and SARs. 

(1) Immediately following the consummation of any Change in Control, all outstanding Options and SARs will terminate, except to the
extent they are assumed by the successor corporation (or parent thereof) or otherwise continued in full force and effect pursuant to the terms of the Change in Control transaction. 

(2) In the event of a Change in Control: (A) all outstanding repurchase rights will be automatically assigned to the successor
corporation (or parent thereof); (B) such outstanding repurchase rights may be otherwise continued in full force and effect pursuant to the terms of the Change in Control transaction; or (C) any property (including cash payments) issued
with respect to unvested shares may be held in escrow and released no later than as provided by the vesting schedule in effect for the unvested shares pursuant to the Change in Control transaction. Notwithstanding the foregoing, in the event of a
Change in Control the successor corporation (or parent thereof) may elect to not accept assignment of the outstanding repurchase rights, in which case the repurchase rights will terminate automatically and the shares of Common Stock
subject to those terminated rights will immediately become vested shares upon the Change in Control. 

  
 17. 

 (3) Each Option and SAR that is assumed or otherwise continued in effect in connection
with a Change in Control will be appropriately adjusted, immediately after such Change in Control, to apply to the number and class of securities which would have been issuable to the Participant in consummation of such Change in Control, had the
Option or SAR been exercised immediately prior to such Change in Control. Appropriate adjustments will also be made to (A) the number and class of securities available for issuance under the Plan following the consummation of such Change in
Control and (B) the exercise price payable per share under each outstanding Option and SAR, provided the aggregate exercise price payable for such securities will remain the same. To the extent the holders of Common Stock receive cash
consideration in whole or part for their Common Stock in consummation of the Change in Control, the successor corporation may, in connection with the assumption of the outstanding Options and SARs under this Plan, substitute one or more shares of
its own common stock with a fair market value equivalent to the cash consideration paid per share of Common Stock in such Change in Control transaction. 

(4) Among its discretionary powers, the Board will have the ability to structure an Option and SAR (either at the time the Option or
SAR is granted or at any time while the Option or SAR remains outstanding) so that some or all of the shares subject to that Option or SAR will automatically become vested shares upon the occurrence of: (A) a Change in Control; (B) another
specified event; and/or (C) the Involuntary Termination of the Participant’s Continuous Service within a designated period of time following a specified event. In addition, the Board may provide that one or more of the Company’s
outstanding repurchase rights with respect to some or all of the shares held by the Participant will terminate on an accelerated basis either upon: (A) a Change in Control; (B) another specified event; and/or (C) the Involuntary
Termination of the Participant’s Continuous Service within a designated period of time following a specified event, and the shares subject to those terminated rights will become vested shares at that time. 

(5) The portion of any Incentive Stock Option accelerated in connection with a Change in Control will remain exercisable as an
Incentive Stock Option only to the extent the $100,000 limitation set forth in Section 8(f) is not exceeded. To the extent such dollar limitation is exceeded, the accelerated portion of such option will be exercisable as a Nonstatutory Stock
Option under the federal tax laws. 
 (ii) Restricted Stock Awards. 

(1) Upon the occurrence of a Change in Control: (A) all outstanding repurchase rights will be automatically assigned to the
successor corporation (or parent thereof); (B) the repurchase rights may be otherwise continued in full force and effect pursuant to the terms of the Change in Control transaction; or (C) any property (including cash payments) issued with
respect to the unvested shares may be held in escrow and released no later than as provided by the vesting schedule in effect for the unvested shares pursuant to the terms of the Change in Control transaction. Notwithstanding the foregoing, in the
event of a Change in Control the successor corporation (or parent thereof) may elect to not accept assignment of the outstanding repurchase rights, in which case the repurchase rights will terminate automatically and the shares of
Common Stock subject to those terminated rights will immediately become vested shares upon the Change in Control. 

  
 18. 

 (2) The Board will have the discretionary authority, exercisable either at the time the
unvested shares are issued or any time while the Company’s repurchase rights with respect to those shares remain outstanding, to provide that those rights will automatically terminate in whole or in part on an accelerated basis, and some or all
of the shares of Common Stock subject to those terminated rights will immediately become vested shares, upon the occurrence of a Change in Control or another specified event or in the event that the Involuntary Termination of the Participant’s
Continuous Service occurs within a designated period of time following a specified event. 
 (iii) Restricted Stock Unit
Awards. 
 (1) Immediately following the consummation of any Change in Control, all outstanding Restricted Stock Unit Awards
will terminate, except to the extent they are assumed by the successor corporation (or parent thereof) or otherwise continued in full force and effect pursuant to the terms of the Change in Control transaction. 

(2) Each Restricted Stock Unit Award that is assumed or otherwise continued in effect in connection with a Change in Control will be
appropriately adjusted, immediately after such Change in Control, to apply to the number and class of securities which would have been issuable to the Participant in consummation of such Change in Control, had the Restricted Stock Unit Award been
settled immediately prior to such Change in Control. Appropriate adjustments will also be made to the number and class of securities available for issuance under the Plan following the consummation of such Change in Control. To the extent the
holders of Common Stock receive cash consideration in whole or part for their Common Stock in consummation of the Change in Control, the successor corporation may, in connection with the assumption of the outstanding Restricted Stock Unit Awards
under this Plan, substitute one or more shares of its own common stock with a fair market value equivalent to the cash consideration paid per share of Common Stock in such Change in Control transaction. 

(3) Among its discretionary powers, the Board will have the ability to structure a Restricted Stock Unit Award (either at the time the
Restricted Stock Unit Award is granted or at any time while the Restricted Stock Unit Award remains outstanding) so that some or all of the shares subject to that Restricted Stock Unit Award will automatically become vested shares upon the
occurrence of: (A) a Change in Control; (B) another specified event; and/or (C) the Involuntary Termination of the Participant’s Continuous Service within a designated period of time following a specified event. 

  
 19. 

 10. PLAN TERM; EARLIER TERMINATION
OR SUSPENSION OF THE PLAN. 
 (a) Plan Term. The Board
may suspend or terminate the Plan at any time. Unless terminated sooner by the Board, the Plan will automatically terminate on the day before the tenth (10th) anniversary of the earlier of (i) the date the Plan is adopted by the Board, or
(ii) the date the Plan is approved by the stockholders of the Company. No Stock Awards may be granted under the Plan while the Plan is suspended or after it is terminated. 

(b) No Impairment of Rights. Suspension or termination of the Plan will not impair rights and obligations under any Stock Award granted
while the Plan is in effect except with the written consent of the affected Participant or as otherwise permitted in the Plan. 
 11.
EFFECTIVE DATE OF PLAN. 
 This Plan will become effective on the Effective
Date. 
 12. CHOICE OF LAW. 

The laws of the State of Delaware will govern all questions concerning the construction, validity and interpretation of this Plan, without
regard to that state’s conflict of laws rules. 
 13. DEFINITIONS. As used in the Plan, the following definitions will apply to
the capitalized terms indicated below: 
 (a) “Affiliate” means, at the time of determination, any
“parent” or “majority-owned subsidiary” of the Company, as such terms are defined in Rule 405. The Board will have the authority to determine the time or times at which “parent” or “majority-owned
subsidiary” status is determined within the foregoing definition. 
 (b) “Board” means the Board of
Directors of the Company. 
 (c) “Capitalization Adjustment” means any change that is made in, or other
events that occur with respect to, the Common Stock subject to the Plan or subject to any Stock Award after the Effective Date without the receipt of consideration by the Company through merger, consolidation, reorganization, recapitalization,
reincorporation, stock dividend, dividend in property other than cash, large nonrecurring cash dividend, stock split, reverse stock split, liquidating dividend, combination of shares, exchange of shares, change in corporate structure, or any similar
equity restructuring transaction, as that term is used in Statement of Financial Accounting Standards Board Accounting Standards Codification Topic 718 (or any successor thereto). Notwithstanding the foregoing, the conversion of any convertible
securities of the Company will not be treated as a Capitalization Adjustment. 
 (d) “Change in
Control” means a change in ownership or control of the Company effected through any of the following transactions: 

(i) a merger, consolidation or other reorganization unless securities representing more than 50% of the total combined voting power of
the voting securities of the successor corporation are immediately thereafter beneficially owned, directly or indirectly and in substantially the same proportion, by the persons who beneficially owned the Company’s outstanding voting securities
immediately prior to such transaction; 

  
 20. 

 (ii) a sale, transfer or other disposition of all or substantially all of the Company’s
assets; or 
 (iii) the acquisition, directly or indirectly, by any person or related group of persons (other than the Company or a person
that directly or indirectly controls, is controlled by, or is under common control with, the Company), of beneficial ownership (within the meaning of Rule 13-d3 of the Exchange Act) of securities possessing more than 50% of the total combined voting
power of the Company’s outstanding securities from a person or persons other than the Company. 
 In no event will any public offering
of the Company’s securities or the sale of newly issued capital stock or debt (including convertible debt) of the Company be deemed to constitute a Change in Control. 

(e) “Code” means the Internal Revenue Code of 1986, as amended, including any applicable regulations and
guidance thereunder. 
 (f) “Committee” means a committee of one or more Directors to whom authority has been
delegated by the Board in accordance with Section 2(c). 
 (g) “Common Stock” means the common stock of
the Company. 
 (h) “Company” means ProteinSimple, a Delaware corporation. 

(i) “Consultant” means any person, including an advisor, who is (i) engaged by the Company or an Affiliate
to render consulting or advisory services and is compensated for such services, or (ii) serving as a member of the board of directors of an Affiliate and is compensated for such services. However, service solely as a Director, or payment of a
fee for such service, will not cause a Director to be considered a “Consultant” for purposes of the Plan.  
 (j)
“Continuous Service” means that the Participant’s service with the Company or an Affiliate, whether as an Employee, Director or Consultant, is not interrupted or terminated. A change in the capacity in which the
Participant renders service to the Company or an Affiliate as an Employee, Director or Consultant or a change in the Entity for which the Participant renders such service, provided that there is no interruption or termination of the
Participant’s service with the Company or an Affiliate, will not terminate a Participant’s Continuous Service; provided, however, that if the Entity for which a Participant is rendering services ceases to qualify as an Affiliate, as
determined by the Board in its sole discretion, such Participant’s Continuous Service will be considered to have terminated on the date such Entity ceases to qualify as an Affiliate. For example, a change in status from an Employee of the
Company to a 

  
 21. 

 
Consultant of an Affiliate or to a Director will not constitute an interruption of Continuous Service. To the extent permitted by law, the Board or the chief executive officer of the Company, in
that party’s sole discretion, may determine whether Continuous Service will be considered interrupted in the case of (i) any leave of absence approved by the Board or chief executive officer, including sick leave, military leave or any
other personal leave, or (ii) transfers between the Company, an Affiliate, or their successors. Notwithstanding the foregoing, a leave of absence will be treated as Continuous Service for purposes of vesting in a Stock Award only to such extent
as may be provided in the Company’s leave of absence policy, in the written terms of any leave of absence agreement or policy applicable to the Participant, or as otherwise required by law. 

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

(l) “Disability” means, with respect to a Participant, the inability of such Participant to engage in any
substantial gainful activity by reason of any medically determinable physical or mental impairment that can be expected to result in death or that has lasted or can be expected to last for a continuous period of not less than
twelve (12) months as provided in Sections 22(e)(3) and 409A(a)(2)(c)(i) of the Code, and will be determined by the Board on the basis of such medical evidence as the Board deems warranted under the circumstances. 

(m) “Effective Date” means the effective date of this Plan, which is the earlier of (i) the date that this
Plan is first approved by the Company’s stockholders, and (ii) the date this Plan is adopted by the Board. 
 (n)
“Employee” means any person employed by the Company or an Affiliate. However, service solely as a Director, or payment of a fee for such services, will not cause a Director to be considered an “Employee” for
purposes of the Plan. 
 (o) “Entity” means a corporation, partnership, limited liability company or other
entity. 
 (p) “Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and
regulations promulgated thereunder. 
 (q) “Exchange Act Person” means any natural person, Entity or
“group” (within the meaning of Section 13(d) or 14(d) of the Exchange Act), except that “Exchange Act Person” will not include (i) the Company or any Subsidiary of the Company, (ii) any employee benefit
plan of the Company or any Subsidiary of the Company or any trustee or other fiduciary holding securities under an employee benefit plan of the Company or any Subsidiary of the Company, (iii) an underwriter temporarily holding securities
pursuant to an offering of such securities, (iv) an Entity Owned, directly or indirectly, by the stockholders of the Company in substantially the same proportions as their Ownership of stock of the Company; or (v) any natural person,
Entity or “group” (within the meaning of Section 13(d) or 14(d) of the Exchange Act) that, as of the Effective Date, is the Owner, directly or indirectly, of securities of the Company representing more than
fifty percent (50%) of the combined voting power of the Company’s then outstanding securities. 

  
 22. 

 (r) “Fair Market Value” means, as of any date, the value of the
Common Stock determined by the Board in compliance with Section 409A of the Code or, in the case of an Incentive Stock Option, in compliance with Section 422 of the Code. 

(s) “Incentive Stock Option” means an option granted pursuant to Section 5 of the Plan that is intended to
be, and that qualifies as, an “incentive stock option” within the meaning of Section 422 of the Code. 
 (t)
“Involuntary Termination” means (i) a Participant’s involuntary dismissal or discharge by the Company (or any Parent or Subsidiary) for reasons other than Misconduct, or (ii) a Participant’s
voluntary resignation within 60 days following: (A) a change in his or her position with the Company (or any Parent or Subsidiary) which materially reduces his or her duties and responsibilities; (B) a reduction in his or her base salary
by more than 15%, unless the base salaries of all similarly situated individuals are reduced by the Company or any Parent or Subsidiary employing the individual; or (c) a relocation of the Participant’s place of employment by more than
fifty miles, provided and only if such change, reduction or relocation is effected without the Participant’s written consent. 

(u) “Misconduct” will have the meaning ascribed to such term in any written agreement between the Participant
and the Company defining such term and, in the absence of such agreement, such term means, with respect to a Participant: (i) the commission of any act of fraud, embezzlement or dishonesty by the Participant, (ii) any unauthorized use or
disclosure by such person of confidential information or trade secrets of the Company or any Affiliate, or (iii) any other intentional misconduct by such person adversely affecting the business or affairs of the Company or any Affiliate in a
material manner. The foregoing definition will not in any way preclude or restrict the right of the Company or any Affiliate to discharge or dismiss the Participant for any other acts or omissions, but such other acts or omissions will not be
deemed, for the purposes of the Plan, to constitute grounds for termination for Misconduct. 
 (v) “Nonstatutory Stock
Option” means any option granted pursuant to Section 5 of the Plan that does not qualify as an Incentive Stock Option. 

(w) “Officer” means any person designated by the Company as an officer. 

(x) “Option” means an Incentive Stock Option or a Nonstatutory Stock Option to purchase shares of Common Stock
granted pursuant to the Plan. 
 (y) “Option Agreement” means a written agreement between the Company and an
Optionholder evidencing the terms and conditions of an Option grant. Each Option Agreement will be subject to the terms and conditions of the Plan. 

(z) “Optionholder” means a person to whom an Option is granted pursuant to the Plan or, if applicable, such
other person who holds an outstanding Option. 
 (aa) “Other Stock Award” means an award based in whole or in
part by reference to the Common Stock which is granted pursuant to the terms and conditions of Section 6(c). 

  
 23. 

 (bb) “Other Stock Award Agreement” means a written agreement
between the Company and a holder of an Other Stock Award evidencing the terms and conditions of an Other Stock Award grant. Each Other Stock Award Agreement will be subject to the terms and conditions of the Plan. 

(cc) “Own,” “Owned,” “Owner,”
“Ownership” A person or Entity will be deemed to “Own,” to have “Owned,” to be the “Owner” of, or to have acquired “Ownership” of securities if such person or Entity, directly or
indirectly, through any contract, arrangement, understanding, relationship or otherwise, has or shares voting power, which includes the power to vote or to direct the voting, with respect to such securities. 

(dd) “Participant” means a person to whom a Stock Award is granted pursuant to the Plan or, if applicable, such
other person who holds an outstanding Stock Award. 
 (ee) “Plan” means this Protein Simple 2013 Equity
Incentive Plan. 
 (ff) “Restricted Stock Award” means an award of shares of Common Stock which is granted
pursuant to the terms and conditions of Section 6(a). 
 (gg) “Restricted Stock Award Agreement” means a
written agreement between the Company and a holder of a Restricted Stock Award evidencing the terms and conditions of a Restricted Stock Award grant. Each Restricted Stock Award Agreement will be subject to the terms and conditions of the Plan. 

(hh) “Restricted Stock Unit Award” means a right to receive shares of Common Stock which is granted pursuant to
the terms and conditions of Section 6(b). 
 (ii) “Restricted Stock Unit Award Agreement” means a
written agreement between the Company and a holder of a Restricted Stock Unit Award evidencing the terms and conditions of a Restricted Stock Unit Award grant. Each Restricted Stock Unit Award Agreement will be subject to the terms and conditions of
the Plan. 
 (jj) “Rule 405” means Rule 405 promulgated under the Securities Act. 

(kk) “Rule 701” means Rule 701 promulgated under the Securities Act. 

(ll) “Securities Act” means the Securities Act of 1933, as amended. 

(mm) “Stock Appreciation Right” or “SAR” means a right to receive the appreciation on
Common Stock that is granted pursuant to the terms and conditions of Section 5. 
 (nn) “Stock Appreciation Right
Agreement” means a written agreement between the Company and a holder of a Stock Appreciation Right evidencing the terms and conditions of a Stock Appreciation Right grant. Each Stock Appreciation Right Agreement will be subject to the
terms and conditions of the Plan. 

  
 24. 

 (oo) “Stock Award” means any right to receive Common Stock granted
under the Plan, including an Incentive Stock Option, a Nonstatutory Stock Option, a Restricted Stock Award, a Restricted Stock Unit Award, a Stock Appreciation Right or any Other Stock Award. 

(pp) “Stock Award Agreement” means a written agreement between the Company and a Participant evidencing the
terms and conditions of a Stock Award grant. Each Stock Award Agreement will be subject to the terms and conditions of the Plan. 
 (qq)
“Subsidiary” means, with respect to the Company, (i) any corporation of which more than fifty percent (50%) of the outstanding capital stock having ordinary voting power to elect a majority of the board of
directors of such corporation (irrespective of whether, at the time, stock of any other class or classes of such corporation will have or might have voting power by reason of the happening of any contingency) is at the time, directly or indirectly,
Owned by the Company, and (ii) any partnership, limited liability company or other entity in which the Company has a direct or indirect interest (whether in the form of voting or participation in profits or capital contribution) of more than
fifty percent (50%) . 
 (rr) “Ten Percent Stockholder” means a person who Owns (or is deemed to
Own pursuant to Section 424(d) of the Code) stock possessing more than ten percent (10%) of the total combined voting power of all classes of stock of the Company or any Affiliate. 

  
 25.

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