Document:

Form of Early Exercise Stock Option Agmt under the 2010 Equity Incentive Plan

 Exhibit 10.6 
 IMPINJ, INC. 
 2010 EQUITY INCENTIVE PLAN 

STOCK OPTION AGREEMENT — EARLY EXERCISE 
 Unless otherwise defined herein, the terms defined in the 2010 Equity Incentive Plan (the “Plan”) shall have the same defined meanings in this Stock Option Agreement – Early Exercise (the
“Option Agreement”). 
  

	I.	NOTICE OF STOCK OPTION GRANT 

 Name: 
 Address: 

The undersigned Participant has been granted an Option to purchase Common Stock of the Company, subject to the terms and conditions of
the Plan and this Option Agreement, as follows: 
 Date of
Grant:                                        
                                         
                          
 Vesting Commencement
Date:                                        
                                       

Exercise Price per
Share:                $                        
                                         
    
 Total Number of Shares
Granted:                                       
                                  

Total Exercise
Price:                        $                
                                         
            
 Type of
Option:                                —    Incentive Stock
Option 

                       
                                   —    
Nonstatutory Stock Option 
 Term/Expiration
Date:                                        
                                         
            
 Vesting Schedule: 

This Option shall be exercisable, in whole or in part, according to the following vesting schedule: 

[VESTING SCHEDULE] 

 Termination Period: 

This Option shall be exercisable for three (3) months after Participant ceases to be a Service Provider, unless such termination is
due to Participant’s death or Disability, in which case this Option shall be exercisable for twelve (12) months after Participant ceases to be a Service Provider. 
 Notwithstanding the foregoing, unless otherwise provided by the Administrator, in the event Participant’s status as a Service Provider is terminated for Cause, this Option shall terminate immediately
upon such termination for Cause. Unless otherwise provided by the Administrator, in the event Participant’s status as a Service Provider is suspended pending investigation of whether such relationship shall be terminated for Cause, all
Participant’s rights under the Option, including the right to exercise the Option, shall be suspended during the investigation period. 
 In no event may this Option be exercised after the Term/Expiration Date as provided above and this Option may be subject to earlier termination as provided in Section 13 of the Plan. 

II. AGREEMENT 

1. Grant of Option. The Administrator of the Company hereby grants to the Participant named in the Notice of Stock Option Grant in
Part I of this Agreement (“Participant”), an option (the “Option”) to purchase the number of Shares set forth in the Notice of Stock Option Grant, at the exercise price per Share set forth in the Notice of Stock Option Grant (the
“Exercise Price”), and subject to the terms and conditions of the Plan, which is incorporated herein by reference. Subject to Section 18 of the Plan, in the event of a conflict between the terms and conditions of the Plan and this Option
Agreement, the terms and conditions of the Plan shall prevail. 
 If designated in the Notice of Stock Option Grant as an
Incentive Stock Option (“ISO”), this Option is intended to qualify as an Incentive Stock Option as defined in Section 422 of the Code. Nevertheless, to the extent that it exceeds the $100,000 rule of Code Section 422(d), this Option shall
be treated as a Nonstatutory Stock Option (“NSO”). Further, if for any reason this Option (or portion thereof) shall not qualify as an ISO, then, to the extent of such nonqualification, such Option (or portion thereof) shall be regarded as
a NSO granted under the Plan. In no event shall the Administrator, the Company or any Parent or Subsidiary or any of their respective employees or directors have any liability to Participant (or any other person) due to the failure of the Option to
qualify for any reason as an ISO. 
 2. Exercise of Option. This Option shall be exercisable during its term in
accordance with the provisions of Section 6 of the Plan as follows: 
 (a) Right to Exercise. 

(i) Subject to subsections 2(a)(ii) and 2(a)(iii) below, this Option shall be exercisable cumulatively according to the vesting schedule
set forth in the Notice of 

  
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Stock Option Grant. Alternatively, at the election of Participant, this Option may be exercised in whole or in part at any time as to Shares that have not yet vested. Vested Shares shall not be
subject to the Company’s repurchase right (as set forth in the Restricted Stock Purchase Agreement, attached hereto as Exhibit C-1). 
 (ii) As a condition to exercising this Option for unvested Shares, Participant shall execute the Restricted Stock Purchase Agreement. 

(iii) This Option may not be exercised for a fraction of a Share. 

(b) Method of Exercise. This Option shall be exercisable by delivery of an exercise notice in the form attached as
Exhibit A (the “Exercise Notice”) or in a manner and pursuant to such procedures as the Administrator may determine, which shall state the election to exercise the Option, the number of Shares with respect to which the Option
is being exercised (the “Exercised Shares”), and such other representations and agreements as may be required by the Company. The Exercise Notice shall be accompanied by payment of the aggregate Exercise Price as to all Exercised Shares,
together with any applicable tax withholding. This Option shall be deemed to be exercised upon receipt by the Company of such fully executed Exercise Notice accompanied by the aggregate Exercise Price, together with any applicable tax withholding.

 No Shares shall be issued pursuant to the exercise of an Option unless such issuance and such exercise comply with Applicable
Laws. Assuming such compliance, for income tax purposes the Shares shall be considered transferred to Participant on the date on which the Option is exercised with respect to such Shares. 

3. Participant’s Representations. In the event the Shares have not been registered under the Securities Act of 1933, as
amended (the “Securities Act”), at the time this Option is exercised, Participant shall, if required by the Company, concurrently with the exercise of all or any portion of this Option, deliver to the Company his or her Investment
Representation Statement in the form attached hereto as Exhibit B. 
 4. Lock-Up Period. Participant hereby agrees
that Participant shall not offer, pledge, sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase, lend, or otherwise transfer or dispose of, directly
or indirectly, any Common Stock (or other securities) of the Company or enter into any swap, hedging or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of any Common Stock (or other
securities) of the Company held by Participant (other than those included in the registration) for a period specified by the representative of the underwriters of Common Stock (or other securities) of the Company not to exceed one hundred and eighty
(180) days following the effective date of any registration statement of the Company filed under the Securities Act (or such other period as may be requested by the Company or the underwriters to accommodate regulatory restrictions on
(i) the publication or other distribution of research reports and (ii) analyst recommendations and opinions, including, but not limited to, the restrictions contained in NASD Rule 2711(f)(4) or NYSE Rule 472(f)(4), or any successor
provisions or amendments thereto). 

  
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 Participant agrees to execute and deliver such other agreements as may be reasonably
requested by the Company or the underwriter which are consistent with the foregoing or which are necessary to give further effect thereto. In addition, if requested by the Company or the representative of the underwriters of Common Stock (or other
securities) of the Company, Participant shall provide, within ten (10) days of such request, such information as may be required by the Company or such representative in connection with the completion of any public offering of the
Company’s securities pursuant to a registration statement filed under the Securities Act. The obligations described in this Section 4 shall not apply to a registration relating solely to employee benefit plans on Form S-1 or Form S-8 or similar
forms that may be promulgated in the future, or a registration relating solely to a Commission Rule 145 transaction on Form S-4 or similar forms that may be promulgated in the future. The Company may impose stop-transfer instructions with respect to
the shares of Common Stock (or other securities) subject to the foregoing restriction until the end of said one hundred and eighty (180) day (or other) period. Participant agrees that any transferee of the Option or shares acquired pursuant to
the Option shall be bound by this Section 4. 
 5. Method of Payment. Payment of the aggregate Exercise Price shall be by
any of the following, or a combination thereof, at the election of the Participant: 
 (a) cash; 

(b) check; 

(c) consideration received by the Company under a formal cashless exercise program adopted by the Company in connection with the Plan; or

 (d) surrender of other Shares which (i) shall be valued at its Fair Market Value on the date of exercise, and
(ii) must be owned free and clear of any liens, claims, encumbrances or security interests, if accepting such Shares, in the sole discretion of the Administrator, shall not result in any adverse accounting consequences to the Company.

 6. Restrictions on Exercise. This Option may not be exercised until such time as the Plan has been approved by the
stockholders of the Company, or if the issuance of such Shares upon such exercise or the method of payment of consideration for such shares would constitute a violation of any Applicable Law. 

7. Non-Transferability of Option. 
 (a) This Option may not be transferred in any manner otherwise than by will or by the laws of descent or distribution and may be exercised during the lifetime of Participant only by Participant. The terms
of the Plan and this Option Agreement shall be binding upon the executors, administrators, heirs, successors and assigns of Participant. 
 (b) Further, until the Company becomes subject to the reporting requirements of Section 13 or 15(d) of the Exchange Act, or after the Administrator determines that it is, will, or may no longer be relying
upon the exemption from registration of Options under the Exchange Act as set forth in Rule 12h-1(f) promulgated under the 

  
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Exchange Act (the “Reliance End Date”), Participant shall not transfer this Option or, prior to exercise, the Shares subject to this Option, in any manner other than (i) to persons
who are “family members” (as defined in Rule 701(c)(3) of the Securities Act) through gifts or domestic relations orders, or (ii) to an executor or guardian of Participant upon the death or disability of Participant. Until the
Reliance End Date, the Options and, prior to exercise, the Shares subject to this Option, may not be pledged, hypothecated or otherwise transferred or disposed of, including by entering into any short position, any “put equivalent
position” or any “call equivalent position” (as defined in Rule 16a-1(h) and Rule 16a-1(b) of the Exchange Act, respectively), other than as permitted in clauses (i) and (ii) of this paragraph. 

8. Term of Option. This Option may be exercised only within the term set out in the Notice of Stock Option Grant, and may be
exercised during such term only in accordance with the Plan and the terms of this Option Agreement. 
 9. Tax
Obligations. 
 (a) Tax Withholding. Participant agrees to make appropriate arrangements with the Company (or the
Parent or Subsidiary employing or retaining Participant) for the satisfaction of all Federal, state, local and foreign income and employment tax withholding requirements applicable to the Option exercise. Participant acknowledges and agrees that the
Company may refuse to honor the exercise and refuse to deliver the Shares if such withholding amounts are not delivered at the time of exercise. 
 (b) Notice of Disqualifying Disposition of ISO Shares. If the Option granted to Participant herein is an ISO, and if Participant sells or otherwise disposes of any of the Shares acquired pursuant
to the ISO on or before the later of (i) the date two (2) years after the Date of Grant, or (ii) the date one (1) year after the date of exercise, Participant shall immediately notify the Company in writing of such disposition.
Participant agrees that Participant may be subject to income tax withholding by the Company on the compensation income recognized by Participant. 
 (c) Code Section 409A. Under Code Section 409A, an Option that vests after December 31, 2004 (or that vested on or prior to such date but which was materially modified after October 3, 2004) that
was granted with a per Share exercise price that is determined by the Internal Revenue Service (the “IRS”) to be less than the Fair Market Value of a Share on the date of grant (a “discount option”) may be considered
“deferred compensation.” An Option that is a “discount option” may result in (i) income recognition by Participant prior to the exercise of the Option, (ii) an additional twenty percent (20%) federal income tax,
and (iii) potential penalty and interest charges. The “discount option” may also result in additional state income, penalty and interest tax to the Participant. Participant acknowledges that the Company cannot and has not guaranteed
that the IRS will agree that the per Share exercise price of this Option equals or exceeds the Fair Market Value of a Share on the date of grant in a later examination. Participant agrees that if the IRS determines that the Option was granted with a
per Share exercise price that was less than the Fair Market Value of a Share on the date of grant, Participant shall be solely responsible for Participant’s costs related to such a determination. 

  
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 10. Entire Agreement; Governing Law. The Plan is incorporated herein by reference.
The Plan and this Option Agreement constitute the entire agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior undertakings and agreements of the Company and Participant with respect to the
subject matter hereof, and may not be modified adversely to the Participant’s interest except by means of a writing signed by the Company and Participant. This Option Agreement is governed by the internal substantive laws but not the choice of
law rules of Delaware. 
 11. No Guarantee of Continued Service. PARTICIPANT ACKNOWLEDGES AND AGREES THAT THE VESTING OF
SHARES PURSUANT TO THE VESTING SCHEDULE HEREOF IS EARNED ONLY BY CONTINUING AS A SERVICE PROVIDER AT THE WILL OF THE COMPANY (OR THE PARENT OR SUBSIDIARY EMPLOYING OR RETAINING PARTICIPANT) AND NOT THROUGH THE ACT OF BEING HIRED, BEING GRANTED THIS
OPTION OR ACQUIRING SHARES HEREUNDER. PARTICIPANT FURTHER ACKNOWLEDGES AND AGREES THAT THIS AGREEMENT, THE TRANSACTIONS CONTEMPLATED HEREUNDER AND THE VESTING SCHEDULE SET FORTH HEREIN DO NOT CONSTITUTE AN EXPRESS OR IMPLIED PROMISE OF CONTINUED
ENGAGEMENT AS A SERVICE PROVIDER FOR THE VESTING PERIOD, FOR ANY PERIOD, OR AT ALL, AND SHALL NOT INTERFERE IN ANY WAY WITH PARTICIPANT’S RIGHT OR THE RIGHT OF THE COMPANY (OR THE PARENT OR SUBSIDIARY EMPLOYING OR RETAINING PARTICIPANT) TO
TERMINATE PARTICIPANT’S RELATIONSHIP AS A SERVICE PROVIDER AT ANY TIME, WITH OR WITHOUT CAUSE. 

  
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 Participant acknowledges receipt of a copy of the Plan and represents that he or she is
familiar with the terms and provisions thereof, and hereby accepts this Option subject to all of the terms and provisions thereof. Participant has reviewed the Plan and this Option in their entirety, has had an opportunity to obtain the advice of
counsel prior to executing this Option and fully understands all provisions of the Option. Participant hereby agrees to accept as binding, conclusive and final all decisions or interpretations of the Administrator upon any questions arising under
the Plan or this Option. Participant further agrees to notify the Company upon any change in the residence address indicated below. 
  

									
	PARTICIPANT	 		 	IMPINJ, INC.
			
	  
	 		 	  

	Signature	 		 	By
			
	  
	 		 	  

	Print Name	 		 	Print Name
			
	  
	 		 	  

		 		 	Title
			
	  
	 		 	
	Residence Address	 		 	

  
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 EXHIBIT A 

2010 EQUITY INCENTIVE PLAN 
 EXERCISE NOTICE 
 Impinj, Inc. 
 701 N. 34th Street, Suite 300 
 Seattle, WA 98103-3414 

Attention:                      

1. Exercise of Option. Effective as of today,
                    ,         , the undersigned (“Participant”) hereby elects to
exercise Participant’s option (the “Option”) to purchase                      shares of the Common Stock (the
“Shares”) of Impinj, Inc. (the “Company”) under and pursuant to the 2010 Equity Incentive Plan (the “Plan”) and the Stock Option Agreement – Early Exercise dated
                    ,          (the “Option Agreement”). 

2. Delivery of Payment. Participant herewith delivers to the Company the full purchase price of the Shares, as set forth in the
Option Agreement, and any and all withholding taxes due in connection with the exercise of the Option. 
 3. Representations
of Participant. Participant acknowledges that Participant has received, read and understood the Plan and the Option Agreement and agrees to abide by and be bound by their terms and conditions. 

4. Rights as Stockholder. Until the issuance of the Shares (as evidenced by the appropriate entry on the books of the Company or
of a duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a stockholder shall exist with respect to the Common Stock subject to an Award, notwithstanding the exercise of the Option. The Shares
shall be issued to Participant as soon as practicable after the Option is exercised in accordance with the Option Agreement. No adjustment shall be made for a dividend or other right for which the record date is prior to the date of issuance except
as provided in Section 13 of the Plan. 
 5. Company’s Right of First Refusal. Before any Shares held by Participant
or any transferee (either being sometimes referred to herein as the “Holder”) may be sold or otherwise transferred (including transfer by gift or operation of law), the Company or its assignee(s) shall have a right of first refusal to
purchase the Shares on the terms and conditions set forth in this Section 5 (the “Right of First Refusal”). 
 (a)
Notice of Proposed Transfer. The Holder of the Shares shall deliver to the Company a written notice (the “Notice”) stating: (i) the Holder’s bona fide intention to sell or otherwise transfer such Shares; (ii) the name
of each proposed purchaser or other transferee (“Proposed Transferee”); (iii) the number of Shares to be transferred to each Proposed Transferee; and (iv) the bona fide cash price or other consideration for which the Holder
proposes to transfer the Shares (the “Offered Price”), and the Holder shall offer the Shares at the Offered Price to the Company or its assignee(s). 

 (b) Exercise of Right of First Refusal. At any time within thirty (30) days
after receipt of the Notice, the Company and/or its assignee(s) may, by giving written notice to the Holder, elect to purchase all, but not less than all, of the Shares proposed to be transferred to any one or more of the Proposed Transferees, at
the purchase price determined in accordance with subsection (c) below. 
 (c) Purchase Price. The purchase price
(“Purchase Price”) for the Shares purchased by the Company or its assignee(s) under this Section 5 shall be the Offered Price. If the Offered Price includes consideration other than cash, the cash equivalent value of the non-cash
consideration shall be determined by the Board of Directors of the Company in good faith. 
 (d) Payment. Payment of the
Purchase Price shall be made, at the option of the Company or its assignee(s), in cash (by check), by cancellation of all or a portion of any outstanding indebtedness of the Holder to the Company (or, in the case of repurchase by an assignee, to the
assignee), or by any combination thereof within thirty (30) days after receipt of the Notice or in the manner and at the times set forth in the Notice. 
 (e) Holder’s Right to Transfer. If all of the Shares proposed in the Notice to be transferred to a given Proposed Transferee are not purchased by the Company and/or its assignee(s) as provided
in this Section 5, then the Holder may sell or otherwise transfer such Shares to that Proposed Transferee at the Offered Price or at a higher price, provided that such sale or other transfer is consummated within one hundred and twenty
(120) days after the date of the Notice, that any such sale or other transfer is effected in accordance with any applicable securities laws and that the Proposed Transferee agrees in writing that the provisions of this Section 5 shall continue
to apply to the Shares in the hands of such Proposed Transferee. If the Shares described in the Notice are not transferred to the Proposed Transferee within such period, a new Notice shall be given to the Company, and the Company and/or its
assignees shall again be offered the Right of First Refusal before any Shares held by the Holder may be sold or otherwise transferred. 
 (f) Exception for Certain Family Transfers. Anything to the contrary contained in this Section 5 notwithstanding, the transfer of any or all of the Shares during the Participant’s lifetime or
on the Participant’s death by will or intestacy to the Participant’s immediate family or a trust for the benefit of the Participant’s immediate family shall be exempt from the provisions of this Section 5. “Immediate Family”
as used herein shall mean spouse, lineal descendant or antecedent, father, mother, brother or sister. In such case, the transferee or other recipient shall receive and hold the Shares so transferred subject to the provisions of this Section 5, and
there shall be no further transfer of such Shares except in accordance with the terms of this Section 5. 
 (g) Termination
of Right of First Refusal. The Right of First Refusal shall terminate as to any Shares upon the earlier of (i) the first sale of Common Stock of the Company to the general public, or (ii) a Change in Control in which the successor
corporation has equity securities that are publicly traded. 

  
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 6. Tax Consultation. Participant understands that Participant may suffer adverse tax
consequences as a result of Participant’s purchase or disposition of the Shares. Participant represents that Participant has consulted with any tax consultants Participant deems advisable in connection with the purchase or disposition of the
Shares and that Participant is not relying on the Company for any tax advice. 
 7. Restrictive Legends and Stop-Transfer
Orders. 
 (a) Legends. Participant understands and agrees that the Company shall cause the legends set forth below
or legends substantially equivalent thereto, to be placed upon any certificate(s) evidencing ownership of the Shares together with any other legends that may be required by the Company or by state or federal securities laws: 

THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 (THE “ACT”) AND MAY NOT BE OFFERED,
SOLD OR OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED UNLESS AND UNTIL REGISTERED UNDER THE ACT OR, IN THE OPINION OF COUNSEL SATISFACTORY TO THE ISSUER OF THESE SECURITIES, SUCH OFFER, SALE OR TRANSFER, PLEDGE OR HYPOTHECATION IS IN COMPLIANCE
THEREWITH. 
 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN RESTRICTIONS ON TRANSFER AND A RIGHT OF FIRST
REFUSAL HELD BY THE ISSUER OR ITS ASSIGNEE(S) AS SET FORTH IN THE EXERCISE NOTICE BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES, A COPY OF WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE ISSUER. SUCH TRANSFER RESTRICTIONS AND RIGHT
OF FIRST REFUSAL ARE BINDING ON TRANSFEREES OF THESE SHARES. 
 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO
RESTRICTIONS ON TRANSFER FOR A PERIOD OF TIME FOLLOWING THE EFFECTIVE DATE OF THE UNDERWRITTEN PUBLIC OFFERING OF THE COMPANY’S SECURITIES SET FORTH IN AN AGREEMENT BETWEEN THE ISSUER AND THE ORIGINAL HOLDER OF THESE SHARES AND MAY NOT BE SOLD
OR OTHERWISE DISPOSED OF BY THE HOLDER PRIOR TO THE EXPIRATION OF SUCH PERIOD WITHOUT THE CONSENT OF THE COMPANY OR THE MANAGING UNDERWRITER. 
 (b) Stop-Transfer Notices. Participant agrees that, in order to ensure compliance with the restrictions referred to herein, the Company may issue appropriate “stop transfer” instructions
to its transfer agent, if any, and that, if the Company transfers its own securities, it may make appropriate notations to the same effect in its own records. 

  
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 (c) Refusal to Transfer. The Company shall not be required (i) to transfer on
its books any Shares that have been sold or otherwise transferred in violation of any of the provisions of this Exercise Notice or (ii) to treat as owner of such Shares or to accord the right to vote or pay dividends to any purchaser or other
transferee to whom such Shares shall have been so transferred. 
 8. Successors and Assigns. The Company may assign any
of its rights under this Exercise Notice to single or multiple assignees, and this Exercise Notice shall inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer herein set forth, this Exercise
Notice shall be binding upon Participant and his or her heirs, executors, administrators, successors and assigns. 
 9.
Interpretation. Any dispute regarding the interpretation of this Exercise Notice shall be submitted by Participant or by the Company forthwith to the Administrator, which shall review such dispute at its next regular meeting. The resolution
of such a dispute by the Administrator shall be final and binding on all parties. 
 10. Governing Law; Severability.
This Exercise Notice is governed by the internal substantive laws, but not the choice of law rules, of Delaware. In the event that any provision hereof becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable or void,
this Exercise Notice shall continue in full force and effect. 
 11. Entire Agreement. The Plan and Option Agreement are
incorporated herein by reference. This Exercise Notice, the Plan, the Restricted Stock Purchase Agreement, the Option Agreement and the Investment Representation Statement constitute the entire agreement of the parties with respect to the subject
matter hereof and supersede in their entirety all prior undertakings and agreements of the Company and Participant with respect to the subject matter hereof, and may not be modified adversely to the Participant’s interest except by means of a
writing signed by the Company and Participant. 
  

									
	 Submitted by:

PARTICIPANT
	 		 	 Accepted by:

IMPINJ, INC.

			
	  
	 		 	  

	Signature	 		 	By
			
	  
	 		 	  

	Print Name	 		 	Print Name
			
		 		 	  

		 		 	Title
			
	Address:	 		 	Address:
			
	  
	 		 	  

	  
	 		 	  

			
		 		 	  

		 		 	Date Received

  
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 EXHIBIT B 

INVESTMENT REPRESENTATION STATEMENT 
  

					
	PARTICIPANT	 	:	    	
			
	COMPANY	 	:	    	IMPINJ, INC.
			
	SECURITY	 	:	    	COMMON STOCK
			
	AMOUNT	 	:	    	
			
	DATE	 	:	    	

 In connection with the purchase of the above-listed Securities, the undersigned Participant represents to the
Company the following: 
 (a) Participant is aware of the Company’s business affairs and financial condition and has
acquired sufficient information about the Company to reach an informed and knowledgeable decision to acquire the Securities. Participant is acquiring these Securities for investment for Participant’s own account only and not with a view to, or
for resale in connection with, any “distribution” thereof within the meaning of the Securities Act of 1933, as amended (the “Securities Act”). 
 (b) Participant acknowledges and understands that the Securities constitute “restricted securities” under the Securities Act and have not been registered under the Securities Act in reliance
upon a specific exemption therefrom, which exemption depends upon, among other things, the bona fide nature of Participant’s investment intent as expressed herein. In this connection, Participant understands that, in the view of the Securities
and Exchange Commission, the statutory basis for such exemption may be unavailable if Participant’s representation was predicated solely upon a present intention to hold these Securities for the minimum capital gains period specified under tax
statutes, for a deferred sale, for or until an increase or decrease in the market price of the Securities, or for a period of one (1) year or any other fixed period in the future. Participant further understands that the Securities must be held
indefinitely unless they are subsequently registered under the Securities Act or an exemption from such registration is available. Participant further acknowledges and understands that the Company is under no obligation to register the Securities.
Participant understands that the certificate evidencing the Securities shall be imprinted with any legend required under applicable state securities laws. 
 (c) Participant is familiar with the provisions of Rule 701 and Rule 144, each promulgated under the Securities Act, which, in substance, permit limited public resale of “restricted securities”
acquired, directly or indirectly from the issuer thereof, in a non-public offering subject to the satisfaction of certain conditions. Rule 701 provides that if the issuer qualifies under Rule 701 at the time of the grant of the Option to
Participant, the exercise shall be exempt from registration under the Securities Act. In the event the Company becomes subject to the reporting requirements of Section 13 or 15(d) of the 

 
Securities Exchange Act of 1934, ninety (90) days thereafter (or such longer period as any market stand-off agreement may require) the Securities exempt under Rule 701 may be resold, subject
to the satisfaction of the applicable conditions specified by Rule 144, including in the case of affiliates (1) the availability of certain public information about the Company, (2) the amount of Securities being sold during any three
(3) month period not exceeding specified limitations, (3) the resale being made in an unsolicited “broker’s transaction”, transactions directly with a “market maker” or “riskless principal transactions”
(as those terms are defined under the Securities Exchange Act of 1934) and (4) the timely filing of a Form 144, if applicable. 
 In the event that the Company does not qualify under Rule 701 at the time of grant of the Option, then the Securities may be resold in certain limited circumstances subject to the provisions of Rule 144,
which may require (i) the availability of current public information about the Company; (ii) the resale to occur more than a specified period after the purchase and full payment (within the meaning of Rule 144) for the Securities; and
(iii) in the case of the sale of Securities by an affiliate, the satisfaction of the conditions set forth in sections (2), (3) and (4) of the paragraph immediately above. 

(d) Participant further understands that in the event all of the applicable requirements of Rule 701 or 144 are not satisfied,
registration under the Securities Act, compliance with Regulation A, or some other registration exemption shall be required; and that, notwithstanding the fact that Rules 144 and 701 are not exclusive, the Staff of the Securities and Exchange
Commission has expressed its opinion that persons proposing to sell private placement securities other than in a registered offering and otherwise than pursuant to Rules 144 or 701 shall have a substantial burden of proof in establishing that an
exemption from registration is available for such offers or sales, and that such persons and their respective brokers who participate in such transactions do so at their own risk. Participant understands that no assurances can be given that any such
other registration exemption shall be available in such event. 
  

			
	PARTICIPANT
	
	  

	Signature
	
	  

	Print Name
	
	  

	Date

  
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 EXHIBIT C-1 

IMPINJ, INC. 
 2010 EQUITY INCENTIVE PLAN 
 RESTRICTED STOCK PURCHASE AGREEMENT

 THIS RESTRICTED STOCK PURCHASE AGREEMENT (the “Agreement”) is made between
                     (the “Purchaser”) and Impinj, Inc. (the “Company”) or its assignees of rights hereunder as of
                    ,         . 

Unless otherwise defined herein, the terms defined in the 2010 Equity Incentive Plan shall have the same defined meanings in this
Agreement. 
 RECITALS 
 A. Pursuant to the exercise of the option (grant number                     ) granted to
Purchaser under the Plan and pursuant to the Stock Option Agreement – Early Exercise (the “Option Agreement”) dated
                    ,          by and between the Company and Purchaser with respect to such
grant (the “Option”), which Plan and Option Agreement are hereby incorporated by reference, Purchaser has elected to purchase
                     of those shares of Common Stock which have not become vested under the vesting schedule set forth in the Option Agreement
(“Unvested Shares”). The Unvested Shares and the shares subject to the Option Agreement, which have become vested are sometimes collectively referred to herein as the “Shares.” 

B. As required by the Option Agreement, as a condition to Purchaser’s election to exercise the option, Purchaser must execute this
Agreement, which sets forth the rights and obligations of the parties with respect to Shares acquired upon exercise of the Option. 
 1. Repurchase Option. 
 (a) If Purchaser’s status as a Service
Provider is terminated for any reason, including for death and Disability, the Company shall have the right and option for ninety (90) days from such date to purchase from Purchaser, or Purchaser’s personal representative, as the case may
be, all of the Purchaser’s Unvested Shares as of the date of such termination at the price paid by the Purchaser for such Shares (the “Repurchase Option”). 
 (b) If Purchaser’s status as a Service Provider is terminated for any reason, including for death and Disability, the Company shall have the right and option for ninety (90) days from such date
to purchase from Purchaser, or Purchaser’s personal representative, as the case may be, all of the Purchaser’s Unvested Shares as of the date of such termination at the price paid by the Purchaser for such Shares (the “Repurchase
Option”). 
 (c) Upon the occurrence of such termination, the Company may exercise its Repurchase Option by delivering
personally or by registered mail, to Purchaser (or his or 

 
her transferee or legal representative, as the case may be) with a copy to the escrow agent described in Section 2 below, a notice in writing indicating the Company’s intention to exercise
the Repurchase Option AND, at the Company’s option, (i) by delivering to the Purchaser (or the Purchaser’s transferee or legal representative) a check in the amount of the aggregate repurchase price, or (ii) by the Company
canceling an amount of the Purchaser’s indebtedness to the Company equal to the aggregate repurchase price, or (iii) by a combination of (i) and (ii) so that the combined payment and cancellation of indebtedness equals such
aggregate repurchase price. Upon delivery of such notice and payment of the aggregate repurchase price in any of the ways described above, the Company shall become the legal and beneficial owner of the Unvested Shares being repurchased and the
rights and interests therein or relating thereto, and the Company shall have the right to retain and transfer to its own name the number of Unvested Shares being repurchased by the Company. 

(d) Whenever the Company shall have the right to repurchase Unvested Shares hereunder, the Company may designate and assign one or more
employees, officers, directors or stockholders of the Company or other persons or organizations to exercise all or a part of the Company’s Repurchase Option under this Agreement and purchase all or a part of such Unvested Shares. 

(e) If the Company does not elect to exercise the Repurchase Option conferred above by giving the requisite notice within ninety
(90) days following the termination, the Repurchase Option shall terminate. 
 (f) The Repurchase Option shall terminate in
accordance with the vesting schedule contained in Purchaser’s Option Agreement. 
 2. Transferability of the Shares;
Escrow. 
 (a) Purchaser hereby authorizes and directs the Secretary of the Company, or such other person designated by the
Company, to transfer the Unvested Shares as to which the Repurchase Option has been exercised from Purchaser to the Company. 

(b) To insure the availability for delivery of Purchaser’s Unvested Shares upon repurchase by the Company pursuant to the Repurchase
Option under Section 1, Purchaser hereby appoints the Secretary, or any other person designated by the Company as escrow agent (the “Escrow Agent”), as its attorney-in-fact to sell, assign and transfer unto the Company, such Unvested
Shares, if any, repurchased by the Company pursuant to the Repurchase Option and shall, upon execution of this Agreement, deliver and deposit with the Escrow Agent, the share certificates representing the Unvested Shares, together with the stock
assignment duly endorsed in blank, attached hereto as Exhibit C-2. The Unvested Shares and stock assignment shall be held by the Escrow Agent in escrow, pursuant to the Joint Escrow Instructions of the Company and Purchaser attached as
Exhibit C-3 hereto, until the Company exercises its Repurchase Option, until such Unvested Shares are vested, or until such time as this Agreement no longer is in effect. Upon vesting of the Unvested Shares, the Escrow Agent shall promptly
deliver to the Purchaser the certificate or certificates representing such Shares in the Escrow Agent’s possession belonging to the 

  
 -2-

 
Purchaser, and the Escrow Agent shall be discharged of all further obligations hereunder; provided, however, that the Escrow Agent shall nevertheless retain such certificate or certificates as
Escrow Agent if so required pursuant to other restrictions imposed pursuant to this Agreement. 
 (c) Neither the Company nor
the Escrow Agent shall be liable for any act it may do or omit to do with respect to holding the Shares in escrow and while acting in good faith and in the exercise of its judgment. 

(d) Transfer or sale of the Shares is subject to restrictions on transfer imposed by any applicable state and federal securities laws.
Any transferee shall hold such Shares subject to all the provisions hereof and the Exercise Notice executed by the Purchaser with respect to any Unvested Shares purchased by Purchaser and shall acknowledge the same by signing a copy of this
Agreement. 
 3. Ownership, Voting Rights, Duties. This Agreement shall not affect in any way the ownership, voting
rights or other rights or duties of Purchaser, except as specifically provided herein. 
 4. Legends. The share
certificate evidencing the Shares issued hereunder shall be endorsed with the following legend (in addition to any legend required under applicable federal and state securities laws): 

THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN RESTRICTIONS UPON TRANSFER AND RIGHTS OF REPURCHASE AS SET FORTH IN AN
AGREEMENT BETWEEN THE COMPANY AND THE STOCKHOLDER, A COPY OF WHICH IS ON FILE WITH THE SECRETARY OF THE COMPANY. 
 5.
Adjustment for Stock Split. All references to the number of Shares and the purchase price of the Shares in this Agreement shall be appropriately adjusted to reflect any stock split, stock dividend or other change in the Shares, which may be
made by the Company pursuant to Section 13 of the Plan after the date of this Agreement. 
 6. Notices. Notices required
hereunder shall be given in person or by registered mail to the address of Purchaser shown on the records of the Company, and to the Company at their respective principal executive offices. 

7. Survival of Terms. This Agreement shall apply to and bind Purchaser and the Company and their respective permitted assignees
and transferees, heirs, legatees, executors, administrators and legal successors. 
 8. Section 83(b) Election. Purchaser
hereby acknowledges that he or she has been informed that, with respect to the exercise of an Option for Unvested Shares, an election (the “Election”) may be filed by the Purchaser with the Internal Revenue Service, within thirty
(30) days of the purchase of the exercised Shares, electing pursuant to Section 83(b) of the Code to be taxed currently on any difference between the purchase price of the exercised Shares and their Fair Market Value on the date of purchase. In
the case of a 

  
 -3-

 
Nonstatutory Stock Option, this will result in the recognition of taxable income to the Purchaser on the date of exercise, measured by the excess, if any, of the Fair Market Value of the
exercised Shares, at the time the Option is exercised over the purchase price for the exercised Shares. Absent such an Election, taxable income will be measured and recognized by Purchaser at the time or times on which the Company’s Repurchase
Option lapses. In the case of an Incentive Stock Option, such an Election will result in a recognition of income to the Purchaser for alternative minimum tax purposes on the date of exercise, measured by the excess, if any, of the Fair Market Value
of the exercised Shares, at the time the option is exercised, over the purchase price for the exercised Shares. Absent such an Election, alternative minimum taxable income will be measured and recognized by Purchaser at the time or times on which
the Company’s Repurchase Option lapses. 
 This discussion is intended only as a summary of the general United States
income tax laws that apply to exercising Options as to Shares that have not yet vested and is accurate only as of the date this form Agreement was approved by the Board. The federal, state and local tax consequences to any particular taxpayer will
depend upon his or her individual circumstances. Purchaser is strongly encouraged to seek the advice of his or her own tax consultants in connection with the purchase of the Shares and the advisability of filing of the Election under Section 83(b)
of the Code. A form of Election under Section 83(b) is attached hereto as Exhibit C-4 for reference. 
 PURCHASER
ACKNOWLEDGES THAT IT IS PURCHASER’S SOLE RESPONSIBILITY AND NOT THE COMPANY’S TO FILE TIMELY THE ELECTION UNDER SECTION 83(b) OF THE CODE, EVEN IF PURCHASER REQUESTS THE COMPANY OR ITS REPRESENTATIVE TO MAKE THIS FILING ON PURCHASER’S
BEHALF. 
 9. Representations. Purchaser has reviewed with his or her own tax advisors the federal, state, local and
foreign tax consequences of this investment and the transactions contemplated by this Agreement. Purchaser is relying solely on such advisors and not on any statements or representations of the Company or any of its agents. Purchaser understands
that he or she (and not the Company) shall be responsible for his or her own tax liability that may arise as a result of this investment or the transactions contemplated by this Agreement. 

10. Entire Agreement; Governing Law. The Plan and Option Agreement are incorporated herein by reference. The Plan, the Option
Agreement, the Exercise Notice, this Agreement, and the Investment Representation Statement constitute the entire agreement of the parties with respect to the subject matter hereof and supersede in their entirety all prior undertakings and
agreements of the Company and Purchaser with respect to the subject matter hereof, and may not be modified adversely to the Purchaser’s interest except by means of a writing signed by the Company and Purchaser. This Agreement is governed by the
internal substantive laws but not the choice of law rules of Delaware. 
 Purchaser represents that he or she has read this
Agreement and is familiar with its terms and provisions. Purchaser hereby agrees to accept as binding, conclusive and final all decisions or interpretations of the Board upon any questions arising under this Agreement. 

  
 -4-

 IN WITNESS WHEREOF, this Agreement is deemed made as of the date first set forth above.

  

					
	PARTICIPANT	 		 	IMPINJ, INC.
			
	  
	 		 	  

	Signature	 		 	By
			
	  
	 		 	  

	Print Name	 		 	Print Name
			
	  
	 		 	  

		 		 	Title
			
	  
	 		 	
	Residence Address	 		 	
			
	Dated:                     ,
        	 		 	

  
 -5-

 EXHIBIT C-2 

ASSIGNMENT SEPARATE FROM CERTIFICATE 
 FOR VALUE RECEIVED I,                     , hereby sell, assign and transfer unto Impinj, Inc.
                     shares of the Common Stock of Impinj, Inc. standing in my name of the books of said corporation represented by
Certificate No.                      herewith and do hereby irrevocably constitute and appoint
                     to transfer the said stock on the books of the within named corporation with full power of substitution in the premises.

 This Stock Assignment may be used only in accordance with the Restricted Stock Purchase Agreement between Impinj, Inc. and
the undersigned dated                     ,         (the “Agreement”). 

 

							
	Dated:                     ,
        	  		  	Signature:	 	  

 INSTRUCTIONS: Please do not fill in any blanks other than the signature line. The purpose of this assignment is to enable the Company to exercise its “repurchase option,” as set forth in the
Agreement, without requiring additional signatures on the part of the Purchaser. 

 EXHIBIT C-3 

JOINT ESCROW INSTRUCTIONS 
                     ,          

Corporate Secretary 
 Impinj, Inc. 

701 N. 34th Street, Suite 300 
 Seattle, WA
98103-3414 
 Dear
                    : 
 As Escrow Agent for both Impinj, Inc. (the “Company”), and the undersigned purchaser of stock of the Company (the “Purchaser”), you are hereby authorized and directed to hold the
documents delivered to you pursuant to the terms of that certain Restricted Stock Purchase Agreement (the “Agreement”) between the Company and the undersigned, in accordance with the following instructions: 

1. In the event the Company and/or any assignee of the Company (referred to collectively for convenience herein as the
“Company”) exercises the Company’s repurchase option set forth in the Agreement, the Company shall give to Purchaser and you a written notice specifying the number of shares of stock to be purchased, the purchase price, and the time
for a closing hereunder at the principal office of the Company. Purchaser and the Company hereby irrevocably authorize and direct you to close the transaction contemplated by such notice in accordance with the terms of said notice. 

2. At the closing, you are directed (a) to date the stock assignments necessary for the transfer in question, (b) to fill in
the number of shares being transferred, and (c) to deliver the stock assignments, together with the certificate evidencing the shares of stock to be transferred, to the Company or its assignee, against the simultaneous delivery to you of the
purchase price (by cash, a check, or some combination thereof) for the number of shares of stock being purchased pursuant to the exercise of the Company’s repurchase option. 

3. Purchaser irrevocably authorizes the Company to deposit with you any certificates evidencing shares of stock to be held by you
hereunder and any additions and substitutions to said shares as defined in the Agreement. Purchaser does hereby irrevocably constitute and appoint you as Purchaser’s attorney-in-fact and agent for the term of this escrow to execute with respect
to such securities all documents necessary or appropriate to make such securities negotiable and to complete any transaction herein contemplated, including but not limited to the filing with any applicable state blue sky authority of any required
applications for consent to, or notice of transfer of, the securities. Subject to the provisions of this paragraph 3, Purchaser shall exercise all rights and privileges of a stockholder of the Company while the stock is held by you. 

4. Upon written request of the Purchaser, but no more than once per calendar year, unless the Company’s repurchase option has been
exercised, you shall deliver to 

 
Purchaser a certificate or certificates representing so many shares of stock as are not then subject to the Company’s repurchase option. Within one hundred and twenty (120) days after
cessation of Purchaser’s continuous employment by or services to the Company, or any parent or subsidiary of the Company, you shall deliver to Purchaser a certificate or certificates representing the aggregate number of shares held or issued
pursuant to the Agreement and not purchased by the Company or its assignees pursuant to exercise of the Company’s repurchase option. 
 5. If at the time of termination of this escrow you should have in your possession any documents, securities, or other property belonging to Purchaser, you shall deliver all of the same to Purchaser and
shall be discharged of all further obligations hereunder. 
 6. Your duties hereunder may be altered, amended, modified or
revoked only by a writing signed by all of the parties hereto. 
 7. You shall be obligated only for the performance of such
duties as are specifically set forth herein and may rely and shall be protected in relying or refraining from acting on any instrument reasonably believed by you to be genuine and to have been signed or presented by the proper party or parties. You
shall not be personally liable for any act you may do or omit to do hereunder as Escrow Agent or as attorney-in-fact for Purchaser while acting in good faith, and any act done or omitted by you pursuant to the advice of your own attorneys shall be
conclusive evidence of such good faith. 
 8. You are hereby expressly authorized to disregard any and all warnings given by any
of the parties hereto or by any other person or corporation, excepting only orders or process of courts of law and are hereby expressly authorized to comply with and obey orders, judgments or decrees of any court. In case you obey or comply with any
such order, judgment or decree, you shall not be liable to any of the parties hereto or to any other person, firm or corporation by reason of such compliance, notwithstanding any such order, judgment or decree being subsequently reversed, modified,
annulled, set aside, vacated or found to have been entered without jurisdiction. 
 9. You shall not be liable in any respect on
account of the identity, authorities or rights of the parties executing or delivering or purporting to execute or deliver the Agreement or any documents or papers deposited or called for hereunder. 

10. You shall not be liable for the outlawing of any rights under the Statute of Limitations with respect to these Joint Escrow
Instructions or any documents deposited with you. 
 11. You shall be entitled to employ such legal counsel and other experts as
you may deem necessary properly to advise you in connection with your obligations hereunder, may rely upon the advice of such counsel, and may pay such counsel reasonable compensation therefor. 

12. Your responsibilities as Escrow Agent hereunder shall terminate if you shall cease to be an officer or agent of the Company or if you
shall resign by written notice to each party. In the event of any such termination, the Company shall appoint a successor Escrow Agent. 

  
 -2-

 13. If you reasonably require other or further instruments in connection with these Joint
Escrow Instructions or obligations in respect hereto, the necessary parties hereto shall join in furnishing such instruments. 

14. It is understood and agreed that should any dispute arise with respect to the delivery and/or ownership or right of possession of the
securities held by you hereunder, you are authorized and directed to retain in your possession without liability to anyone all or any part of said securities until such disputes shall have been settled either by mutual written agreement of the
parties concerned or by a final order, decree or judgment of a court of competent jurisdiction after the time for appeal has expired and no appeal has been perfected, but you shall be under no duty whatsoever to institute or defend any such
proceedings. 
 15. Any notice required or permitted hereunder shall be given in writing and shall be deemed effectively given
upon personal delivery or upon deposit in the United States Post Office, by registered or certified mail with postage and fees prepaid, addressed to each of the other parties thereunto entitled at the following addresses or at such other addresses
as a party may designate by ten (10) days’ advance written notice to each of the other parties hereto. 
 16. By
signing these Joint Escrow Instructions, you become a party hereto only for the purpose of said Joint Escrow Instructions; you do not become a party to the Agreement. 
 17. This instrument shall be binding upon and inure to the benefit of the parties hereto, and their respective successors and permitted assigns. 

18. These Joint Escrow Instructions shall be governed by the internal substantive laws, but not the choice of law rules, of Delaware.

  

					
	PURCHASER	 		 	IMPINJ, INC.
			
	  
	 		 	  

	Signature	 		 	By
			
	  
	 		 	  

	Print Name	 		 	Print Name
			
	  
	 		 	  

		 		 	Title
			
	  
	 		 	
	Residence Address	 		 	

  
 -3-

					
	ESCROW AGENT	 	
		
	  
	 	
	Corporate Secretary	 	
			
	Dated:	 	  
	 	

  
 -4-

 EXHIBIT C-4 

ELECTION UNDER SECTION 83(b) 
 OF THE INTERNAL REVENUE CODE OF 1986 
 The undersigned taxpayer hereby elects, pursuant to
Sections 55 and 83(b) of the Internal Revenue Code of 1986, as amended, to include in taxpayer’s gross income or alternative minimum taxable income, as the case may be, for the current taxable year the amount of any compensation taxable to
taxpayer in connection with taxpayer’s receipt of the property described below. 
  

	1.	The name, address, taxpayer identification number and taxable year of the undersigned are as follows: 

 

							
		 	TAXPAYER	  		  	SPOUSE
				
	NAME:	 	  
	  		  	  

				
	ADDRESS:	 	  
	  		  	  

				
		 	  
	  		  	  

				
	TAX ID NO.:	 	  
	  		  	  

				
	TAXABLE YEAR:	 		  		  	

  

	2.	The property with respect to which the election is made is described as follows:
                     shares (the “Shares”) of the Common Stock of Impinj, Inc. (the “Company”). 

 

	3.	The date on which the property was transferred is:
                    ,         . 

 

	4.	The property is subject to the following restrictions: 

 The Shares may not be transferred and are subject to forfeiture under the terms of an agreement between the taxpayer and the Company. These restrictions lapse upon the satisfaction of certain conditions
contained in such agreement. 
  

	5.	The Fair Market Value at the time of transfer, determined without regard to any restriction other than a restriction which by its terms shall never lapse, of such
property is: $                    . 

  

	6.	The amount (if any) paid for such property is:
$                    . 

The undersigned has submitted a copy of this statement to the person for whom the services were performed in connection with the undersigned’s
receipt of the above-described property. The transferee of such property is the person performing the services in connection with the transfer of said property. 
 The undersigned understands that the foregoing election may not be revoked except with the consent of the Commissioner. 

 

					
	Dated:                     ,
        	 		 	  

		 		 	Taxpayer

 The undersigned spouse of taxpayer joins in this election. 

 

					
	Dated:                     ,
        	 		 	  

		 		 	Spouse of Taxpayer

  
 -2-Amended and Restated Colleran Employment Agreement, dated Dec. 19, 2008

 Exhibit 10.10 
 IMPINJ, INC. 
 AMENDED & RESTATED COLLERAN EMPLOYMENT AGREEMENT

 This Amended & Restated Agreement (the “Agreement”) is entered into as of December 19,
2008 (the “Effective Date”) by and between Impinj, Inc. (the “Company”) and William T. Colleran, Ph.D. (“Executive”) and sets forth the terms and conditions with respect to Executive’s
employment with the Company during the Employment Term. 
 RECITALS 

WHEREAS, the Company and Executive entered into an employment agreement dated July 19, 2007 (the “Prior Employment
Agreement”); and 
 WHEREAS, the Company and Executive wish to restate the terms of Executive’s employment and
replace in its entirety the Prior Employment Agreement, in order to come into compliance with Section 409A of the Internal Revenue Code of 1986, as amended (the “Code”), and any final regulations and official guidance
promulgated thereunder (“Section 409A”), as set forth below. 
 AGREEMENT 

NOW THEREFORE, in consideration of the mutual covenants contained herein, the Company and Executive agree that the Prior Employment
Agreement is restated and replaced in its entirety as follows: 
 1. Duties and Scope of Employment. 

(a) Positions and Duties. Executive will continue to serve as Chief Executive Officer of the Company. Executive will continue to
render such business and professional services in the performance of his duties, consistent with Executive’s position within the Company, as will reasonably be assigned to him by the Company’s Board of Directors (the
“Board”). The period of Executive’s employment is referred to herein as the “Employment Term.” 
 (b) Board Membership. During the Employment Term, Executive will continue to serve as a member of the Board, subject to any required Board and/or stockholder approval. 

(c) Obligations. During the Employment Term, Executive will continue to perform his duties faithfully and to the best of his
ability and will devote his full business efforts and time to the Company. For the duration of the Employment Term, Executive agrees not to actively engage in any other employment, occupation or consulting activity for any direct or indirect
remuneration without the prior approval of the Board. The Company will continue to be entitled to all of the benefits and profits arising from or incident to all such work services and advice. Executive will not render commercial or professional
services of any nature to any person or organization, whether or not for compensation, without the prior written consent of the Board. Notwithstanding the foregoing, nothing in this Agreement will prevent Executive from accepting speaking or
presentation engagements in exchange for honoraria or from serving on boards of charitable organizations, provided that such activities do not materially interfere with Executive’s obligations to the Company as described above. 

 2. At-Will Employment. Executive’s employment with the Company will continue to
be “at-will” employment and may be terminated at any time with or without Cause or notice. Executive understands and agrees that neither his job performance nor promotions, commendations, bonuses or the like from the Company give
rise to or in any way serve as the basis for modification, amendment, or extension, by implication or otherwise, of his employment with the Company. However, as described in this Agreement, Executive may be entitled to severance benefits depending
on the circumstances of Executive’s termination of employment with the Company. 
 3. Compensation. 

(a) Base Salary. The Company will continue to pay Executive a monthly salary of $22,916.67, which is equivalent to an annual
salary of $275,000, as compensation for his services (the “Base Salary”). The Base Salary will continue to be paid periodically in accordance with the Company’s normal payroll practices, and will be subject to the usual,
required withholdings. Executive’s salary will continue to be subject to review, and upward adjustments may be made based upon the Company’s normal performance review practices. 

(b) Performance Bonus. Executive will continue to be eligible to receive a performance bonus during each year of employment with
the Company upon achievement of performance objectives to be determined by the Board or the Compensation Committee of the Board in its sole discretion, which such objectives will be established after consultation with Executive within sixty
(60) days of the anniversary of February 5 (the “Performance Bonus”). The Company shall pay any performance bonus payable hereunder within sixty (60) days of the end of each bonus period. 

(c) Equity. Executive will continue to be eligible to receive awards of stock options, restricted stock or other equity awards
pursuant to any plans or arrangements the Company may have in effect from time to time (“Awards”). The Board or the Compensation Committee of the Board will determine in its discretion whether Executive will be granted any such
Awards and the terms of any such Award in accordance with the terms of any applicable plan or arrangement that may be in effect from time to time. 
 4. Employee Benefits. Executive will continue to be entitled to participate in the employee benefit plans currently and hereafter maintained by the Company of general applicability to other senior
executives of the Company, including, without limitation, the Company’s group medical, dental, vision, disability, and flexible-spending account plans. The Company reserves the right to cancel or change the benefit plans and programs it offers
to its employees at any time. 
 5. Vacation. Executive will continue to be entitled to paid vacation of five weeks per
year in accordance with the Company’s vacation policy, with the timing and duration of specific vacations mutually and reasonably agreed to by the parties hereto. Vacation accrues as follows: 7.69 hours per pay period, subject to the
Company’s policies with respect to maximum accrual of vacation. 

  
 -2-

 6. Expenses. The Company will continue to reimburse Executive for reasonable travel,
entertainment or other expenses incurred by Executive in the furtherance of or in connection with the performance of Executive’s duties hereunder, in accordance with the Company’s expense reimbursement policy as in effect from time to
time. 
 7. Severance. 
 (a) Termination for other than Cause, Death or Disability or Resignation for Good Reason Apart from a Change of Control. If prior to a Change of Control or after twelve (12) months following a
Change of Control (i) the Company terminates Executive’s employment with the Company other than for Cause, death or Disability, or (ii) Executive resigns from his employment with the Company for Good Reason, then, subject to
Section 8, Executive will be entitled to (A) receive continuing payments of severance pay at a rate equal to his Base Salary rate, as then in effect, for six (6) months from the date of such termination in accordance with the
Company’s normal payroll policies and subject to the usual, required withholdings, (B) accelerated vesting of all outstanding Awards as to 25% of the then unvested portion of any such Award, (C) reimbursement of Executive’s
expenses in continuing group health insurance coverage for himself and his eligible covered dependents under the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended (“COBRA”), for up to six (6) months, provided
Executive makes a timely election for and continues to be eligible for such continued coverage, (D) such portion of that year’s Performance Bonus as Executive shall have earned (if any) as of the date of such termination, as determined in
good faith by the Board or the Compensation Committee of the Board, and (E) an extension of the period during which any vested stock options granted to Executive may be exercised by Executive or by any transferee to whom such stock options may
have been transferred by the shorter of one (1) year or such extended period as may be allowed without triggering the imposition of additional tax under Section 409A. 

(b) Termination for other than Cause, Death or Disability or Resignation for Good Reason within Twelve Months Following a Change of
Control. If within twelve (12) months following a Change of Control (i) the Company terminates Executive’s employment with the Company other than for Cause, death or Disability, or (ii) Executive resigns from his employment
with the Company for Good Reason, then, subject to Section 8 and in lieu of any benefits set forth in subsection (a) of this Section 7, Executive will be entitled to (A) receive continuing payments of severance pay at a rate
equal to his Base Salary rate, as then in effect, for twelve (12) months from the date of such termination in accordance with the Company’s normal payroll policies and subject to the usual, required withholdings and payment equal to 50% of
Executive’s annual Base Salary in accordance with the Company’s normal payroll policies and Section 8(d) below and subject to the usual, required withholdings, (B) accelerated vesting of all outstanding Awards as to 100% of the
then unvested portion of any such Award, (C) reimbursement of Executive’s expenses in continuing group health insurance coverage for himself and his eligible covered dependents under COBRA, for up to six (6) months, provided Executive
makes a timely election for and continues to be eligible for such continued coverage, (D) such portion of that year’s Performance Bonus as Executive shall have earned (if any) as of the date of such termination, as determined in good faith
by the Board or the Compensation Committee of the Board, and (E) an extension of the period during which any vested stock options granted to Executive may be exercised by Executive or by any transferee to whom such stock options may have been
transferred by the shorter of one (1) year or such extended period as may be allowed without triggering the imposition of additional tax under Section 409A. 

  
 -3-

 (c) Termination for Cause, Death or Disability; Resignation without Good Reason. If
Executive’s employment with the Company terminates voluntarily by Executive (except upon resignation for Good Reason as provided above), for Cause by the Company or due to Executive’s death or Disability, then (i) all vesting will
terminate immediately with respect to Executive’s outstanding Awards, (ii) all payments of compensation by the Company to Executive hereunder will terminate immediately (except as to amounts already earned, including such portion of that
year’s Performance Bonus as Executive shall have earned (if any) as of the date of such termination, as determined in good faith by the Board or the Compensation Committee of the Board), and (iii) Executive will only be eligible for
severance benefits in accordance with the Company’s established policies, if any, as then in effect. 
 8. Conditions to
Receipt of Severance; No Duty to Mitigate. 
 (a) Separation Agreement and Release of Claims. The continued payment
of salary set forth in subsections (a) and (b) of Section 7 shall be contingent upon Executive signing and not revoking the Company’s standard release upon termination and provided that such release becomes effective no later
than sixty (60) days following the termination date or such reasonable earlier date required by the release agreement (such deadline, the “Release Deadline”). If the release does not become effective by the Release Deadline,
Executive will forfeit any rights to severance or benefits under this Agreement. In no event will severance payments or benefits be paid or provided until the release actually becomes effective. In the event the termination occurs at a time during
the calendar year where the release could become effective in the calendar year following the calendar year in which Executive’s termination occurs, then any severance payments or benefits under this Agreement that would be considered Payments
(as defined in Section 8(d)) will be paid on the first payroll date to occur during the calendar year following the calendar year in which such termination occurs, or, if later, (i) the Release Deadline, (ii) such time as required by
the payment schedule applicable to each payment or benefit as set forth in Section 7, or (iii) such time as required by this Section 8(d). 
 (b) Noncompete. Executive acknowledges that the nature of the Company’s business is such that if Executive were to become employed by, or substantially involved in, the business of a
competitor of the Company following the termination of Executive’s employment with the Company, it would be very difficult for Executive not to rely on or use the Company’s trade secrets and confidential information. Thus, to avoid the
inevitable disclosure of the Company’s trade secrets and confidential information, Executive agrees and acknowledges that Executive’s right to receive the severance payments set forth in Section 7(a) or (b) (to the extent
Executive is otherwise entitled to such payments) will be conditioned upon Executive not directly or indirectly engaging in (whether as an employee, consultant, agent, proprietor, principal, partner, stockholder, corporate officer, director or
otherwise), nor having any ownership interest in or participating in the financing, operation, management or control of, any person, firm, corporation or business that competes with Company (or any parent or subsidiary of the Company) or is a
customer of the Company (or any parent or subsidiary of the Company); provided, however, that that nothing in this Section 8(b) will prevent Executive from owning as a passive investment less than 1% of the outstanding shares of the capital
stock of a publicly-held corporation if such shares are actively traded on a national stock exchange or similar market or medium. Upon any breach of this section, all severance payments pursuant to Section 7(a) or (b) will immediately
cease and Executive will have the longer of (i) thirty (30) days following the commencement of such competition, and (ii) such period of time as 

  
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originally set forth in his Award agreement (without taking into effect the one-year extended post-termination exercise period set forth in Section 7(a) or (b)) to exercise any stock options
or other similar rights to acquire Company common stock. 
 (c) Non-Solicitation. The receipt of any severance benefits
pursuant to Section 7(a) or (b) will be subject to Executive not violating the provisions of Section 11. In the event Executive breaches the provisions of Section 11, all continuing payments and benefits to which Executive may
otherwise be entitled pursuant to Section 7(a) or (b) will immediately cease and Executive will have the longer of (i) thirty (30) days following the commencement of such competition, and (ii) such period of time as
originally set forth in his Award agreement to exercise any stock options or other similar rights to acquire Company common stock. 
 (d) Section 409A. 
 (i) Notwithstanding anything to the contrary in
this Agreement, no severance pay or benefits payable upon separation that is payable to Executive, if any, pursuant to this Agreement, when considered together with any other severance payments or separation benefits that are considered deferred
compensation (together, the “Payments”) under Section 409A will be payable until Executive has a “separation from service” within the meaning of Section 409A 

(ii) Notwithstanding anything to the contrary in this Agreement, if Executive is a “specified employee” within the
meaning of Section 409A at the time of Executive’s termination of employment, then, if required, the Payments, which are otherwise due to Executive on or within the 6 month period following Executive’s termination will accrue, to the
extent required, during such 6 month period and will become payable in a lump sum payment on the date 6 months and 1 day following the date of Executive’s termination of employment or the date of Executive’s death, if earlier. All
subsequent Payments, if any, will be payable in accordance with the payment schedule applicable to each payment or benefit. 

(iii) Any amounts paid under this Agreement that satisfy the requirements of the “short-term deferral” rule set forth in
Section 1.409A-1(b)(4) of the Treasury Regulations will not constitute Payments for purposes of clause (i) above. 

(iv) Each payment and benefit payable under the Agreement is intended to constitute a separate payment for purposes of
Section 1.409A-2(b)(2) of the Treasury Regulations. 
 (v) Any amount paid under this Agreement that qualifies as a
payment made as a result of an involuntary separation from service pursuant to Section 1.409A-1(b)(9)(iii) of the Treasury Regulations that does not exceed the Section 409A Limit (as defined below) will not constitute a Payment for
purposes of clause (i) above. 
 (vi) The foregoing provisions are intended to comply with the requirements of
Section 409A so that none of the severance payments and benefits to be provided hereunder will be subject to the additional tax imposed under Section 409A, and any ambiguities herein will be interpreted to so comply. The Company and
Executive agree to work together in good faith to consider amendments to this Agreement and to take such reasonable actions which are necessary, appropriate or desirable to avoid imposition of any additional tax or income recognition prior to actual
payment to Executive under Section 409A. 

  
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 (e) No Duty to Mitigate. Executive will not be required to mitigate the amount of any
payment contemplated by this Agreement, nor will any earnings that Executive may receive from any other source reduce any such payment. 
 (f) Section 280G. In the event that the severance or benefits provided in this Agreement constitute “parachute payments” within the meaning of Section 280G of the Code
and (ii) but for this Section 8(f), would be subject to the excise tax imposed by Section 4999 of the Code, then Executive’s benefits hereunder shall be payable either: (i) in full, or (ii) as to such lesser amount
which would result in no portion of such severance benefits being subject to excise tax under Section 4999 of the Code, whichever of the foregoing amounts, taking into account the applicable federal, state and local income taxes and the excise
tax imposed by Section 4999, results in the receipt by Executive on an after-tax basis, of the greatest amount of benefits hereunder, notwithstanding that all or some portion of such benefits may be taxable under Section 4999 of the Code.
Unless the Company and Executive agree in writing, any determination required under this Section 8(f) shall be made in writing by the public accountants designated by the Company. If the amount of the aggregate payments or property transferred
to Executive must be reduced under this Section 8(f), then the reduction in payments and/or benefits shall occur in the following order: (1) reduction of cash payments, if any; (2) cancellation of accelerated vesting of Awards other
than stock options, if any; (3) cancellation of accelerated vesting of stock options; and (4) reduction of other benefits, if any, paid to Executive. 
 9. Definitions. 
 (a) Cause. For purposes of this Agreement,
“Cause” is limited to (i) Executive’s conviction of a felony, (ii) Executive’s commission of any act of fraud with respect to the Company, (iii) Executive’s intentional misconduct that has a materially
adverse effect upon the Company’s business, (iv) Executive’s breach of any of Executive’s fiduciary obligations as an officer of the Company or of any contractual obligation that Executive has to the Company, in either case where
the breach has a materially adverse effect on the Company’s business, (v) Executive’s willful misconduct or gross negligence in performance of Executive’s duties hereunder, including Executive’s refusal to comply in any
material respect with the legal directives of the Company’s Board of Directors so long as such directives are not inconsistent with Executive’s position and duties, or (vi) Executive’s death or Disability. However, prior to any
termination of Executive’s employment for Cause defined in clauses (iii), (iv) or (v) above, the Company shall give written notice to Executive of the actions or omissions deemed to constitute the Cause event, and if it is possible to
cure the specified default, Executive shall have a period of not less than thirty (30) days in which to cure the specified default in Executive’s performance. 
 (b) Change of Control. For purposes of this Agreement, “Change of Control” of the Company is defined as: 
 (i) A change in the ownership of the Company which occurs on the date that any one person, or more than one person acting as a group, (“Person”) acquires ownership of the common stock of
the Company that, together with the common stock held by such Person, constitutes more than fifty percent (50%) of the total fair market value or total voting power of the common stock of the Company; provided, however, that for purposes of
this subsection (i), the acquisition of additional stock by any one Person, who is considered to own more than fifty percent (50%) of the total fair market value or total voting power of the common stock of the Company shall not be considered a
Change of Control; or 

  
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 (ii) A change in the effective control of the Company which occurs on the date that:
(1) any Person acquires (or has acquired during the 12-month period ending on the date of the most recent acquisition by such Person) ownership of the common stock of the Company possessing thirty percent (30%) or more of the total voting
power of the stock of the Company; or (2) a majority of members of the Board is replaced during any 12-month period by directors whose appointment or election is not endorsed by a majority of the members of the Board prior to the date of the
appointment or election. For purposes of this subsection (ii), if any Person is considered to effectively control the Company, the acquisition of additional control of the Company by the same Person shall not be considered a Change of Control; or

 (iii) A change in the ownership of a substantial portion of the Company’s assets which occurs on the date that any
Person acquires (or has acquired during the 12-month period ending on the date of the most recent acquisition by such person or persons) assets from the Company that have a total gross fair market value equal to or more than forty percent
(40%) of the total fair market value of all of the assets of the Company immediately prior to such acquisition or acquisitions; provided, however, that for purposes of this subsection (iii), the following shall not constitute a change in the
ownership of a substantial portion of the Company’s assets: (1) a transfer to an entity that is controlled by the Company’s shareholders immediately after the transfer; or (2) a transfer of assets by the Company to: (A) a
shareholder of the Company (immediately before the asset transfer) in exchange for or with respect to the Company’s stock; (B) an entity, fifty percent (50%) or more of the total value or voting power of which is owned, directly or
indirectly, by the Company; (C) a Person, that owns, directly or indirectly, fifty percent (50%) or more of the total value or voting power of all the outstanding stock of the Company; or (D) an entity, at least fifty percent
(50%) of the total value or voting power of which is owned, directly or indirectly, by a Person. For purposes of this subsection (iii), gross fair market value means the value of the assets of the Company, or the value of the assets being
disposed of, determined without regard to any liabilities associated with such assets. 
 For purposes of this
Section 9(b), persons will be considered to be acting as a group if they are owners of a corporation that enters into a merger, consolidation, purchase or acquisition of stock, or similar business transaction with the Company. 

(c) Disability. For purposes of this Agreement, “Disability” means Executive’s inability to engage in any
substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than twelve months.
Executive shall not be considered disabled unless Executive furnishes proof in such form or manner, and at such times, as the Company may require. 
 (d) Good Reason. For the purposes of this Agreement, “Good Reason” means Executive’s resignation within thirty (30) days following the expiration of any Company cure
period (discussed below) following the occurrence of one or more of the following events without Executive’s consent: (i) a material reduction of Executive’s Base Salary; (ii) the assignment to Executive of any duties, or the
reduction of Executive’s duties, either of which results in a material 

  
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diminution in Executive’s authority, duties or responsibilities with the Company in effect immediately prior to such assignment or reduction, or the removal of Executive from such position
and responsibilities, unless Executive is provided with comparable authority, duties or responsibilities; provided that, neither a mere change in title alone nor reassignment following a Change in Control to a position that is
substantially similar to the position held prior to the Change in Control in terms of job duties, responsibilities and requirements shall constitute a material reduction in job responsibilities; or (iii) a material change in the geographic
location at which Executive must perform services (for purposes of this Agreement, the relocation of Executive to a facility or a location less than fifty (50) miles from Executive’s then-present location shall not be considered a material
change in geographic location). Executive will not resign for “Good Reason” without first providing the Company with written notice of the acts or omissions constituting the grounds for “Good Reason” within ninety (90) days
of the initial existence of the grounds for “Good Reason” and a reasonable cure period of not less than thirty (30) days following the date of such notice. 
 (e) Section 409A Limit. For purposes of this Agreement, “Section 409A Limit” means the lesser of two (2) times: (i) Executive’s annualized compensation based
upon the annual rate of pay paid to Executive during the Company’s taxable year preceding the Company’s taxable year of Executive’s termination of employment as determined under Treasury Regulation 1.409A-1(b)(9)(iii)(A)(1) and any
Internal Revenue Service guidance issued with respect thereto; or (ii) the maximum amount that may be taken into account under a qualified plan pursuant to Section 401(a)(17) of the Code for the year in which Executive’s employment is
terminated. 
 10. Confidential Information. Executive agrees to maintain his obligations under the Company’s
standard Proprietary Information and Inventions Agreement dated February 6, 2001 (the “Proprietary Information Agreement”). 
 11. Non-Solicitation. Until the date one (1) year after the termination of Executive’s employment with the Company for any reason, Executive agrees not, either directly or indirectly, to
solicit, induce, attempt to hire, recruit, encourage, take away, hire any employee of the Company (or any parent or subsidiary of the Company) or cause an employee to leave his employment either for Executive or for any other entity or person.
Executive represents that he (i) is familiar with the foregoing covenant not to solicit, and (ii) is fully aware of his obligations hereunder, including, without limitation, the reasonableness of the length of time, scope and geographic
coverage of these covenants. 
 12. Assignment. This Agreement will be binding upon and inure to the benefit of
(a) the heirs, executors and legal representatives of Executive upon Executive’s death and (b) any successor of the Company. Any such successor of the Company will be deemed substituted for the Company under the terms of this
Agreement for all purposes. For this purpose, “successor” means any person, firm, corporation or other business entity which at any time, whether by purchase, merger or otherwise, directly or indirectly acquires all or substantially
all of the assets or business of the Company. None of the rights of Executive to receive any form of compensation payable pursuant to this Agreement may be assigned or transferred except by will or the laws of descent and distribution. Any other
attempted assignment, transfer, conveyance or other disposition of Executive’s right to compensation or other benefits will be null and void. 

  
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 13. Notices. All notices, requests, demands and other communications called for
hereunder will be in writing and will be deemed given (i) on the date of delivery if delivered personally, (ii) one (1) day after being sent by a well established commercial overnight service, or (iii) four (4) days after
being mailed by registered or certified mail, return receipt requested, prepaid and addressed to the parties or their successors at the following addresses, or at such other addresses as the parties may later designate in writing: 

If to the Company: 
 Impinj, Inc. 
 701 N. 34th Street, Suite 300 

Seattle, Washington 98103 
 Attn: Secretary 
 If to Executive: 

at the last residential address known by the Company. 
 14. Severability. In the event that any provision hereof becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable or void, this Agreement will continue in full force
and effect without said provision. 
 15. Arbitration. 

16. Arbitration. In consideration of Executive’s employment with the Company, its promise to arbitrate all employment-related
disputes and his receipt of the compensation, pay raises and other benefits paid to him by the Company, at present and in the future, Executive agrees that any and all controversies, claims, or disputes with anyone (including the Company and any
employee, officer, director, shareholder or benefit plan of the Company in their capacity as such or otherwise) arising out of, relating to, or resulting from Executive’s employment with the Company or the termination of Executive’s
employment with the Company, including any breach of this Agreement, will be subject to binding arbitration under the National Rules for the Resolution of Employment Disputes, supplemented by the Washington Code of Civil Procedure (the
“Rules”) and pursuant to Washington law. Disputes which Executive agrees to arbitrate, and thereby agrees to waive any right to a trial by jury, include any statutory claims under state or federal law, including, but not limited to,
claims under Title VII of the Civil Rights Act of 1964, the Americans with Disabilities Act of 1990, the Age Discrimination in Employment Act of 1967, the Older Workers Benefit Protection Act, the Worker Adjustment and Retraining Notification Act,
the Family and Medical Leave Act, the Washington Law Against Discrimination, claims of harassment, discrimination or wrongful termination and any statutory claims. Executive further understands that this Agreement to arbitrate also applies to any
disputes that the Company may have with him. 
 (a) Procedure. Executive agrees that any arbitration will be administered
by the American Arbitration Association (“AAA”) and that the neutral arbitrator will be selected in a manner consistent with its National Rules for the Resolution of Employment Disputes. Executive agrees that the arbitrator will
have the power to decide any motions brought by any party to the arbitration, including motions for summary judgment and/or adjudication and motions to dismiss and demurrers, prior to any arbitration hearing. Executive also agrees that the
arbitrator will have the 

  
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power to award any remedies, including attorneys’ fees and costs, available under applicable law. Executive understands that the Company will pay for any administrative or hearing fees
charged by the arbitrator or AAA except that Executive will pay the first $125.00 of any filing fees associated with any arbitration Executive initiates. Executive agrees that the arbitrator will administer and conduct any arbitration in a manner
consistent with the Rules and that to the extent that the AAA’s National Rules for the Resolution of Employment Disputes conflict with the Rules, the Rules will take precedence. Executive agrees that the decision of the arbitrator will be in
writing. 
 (b) Remedy. Except as provided by this Agreement and by the Rules, including any provisional relief offered
therein, arbitration will be the sole, exclusive and final remedy for any dispute between Executive and the Company. Accordingly, except as provided for by the Rules and this Agreement, neither Executive nor the Company will be permitted to pursue
court action regarding claims that are subject to arbitration. Notwithstanding, the arbitrator will not have the authority to disregard or refuse to enforce any lawful Company policy, and the arbitrator will not order or require the Company to adopt
a policy not otherwise required by law which the Company has not adopted. 
 (c) Administrative Relief. Executive
understands that this Agreement does not prohibit him from pursuing an administrative claim with a local, state or federal administrative body such as the Department of Fair Employment and Housing, the Equal Employment Opportunity Commission or the
workers’ compensation board. This Agreement does, however, preclude Executive from pursuing court action regarding any such claim. 
 (d) Voluntary Nature of Agreement. Executive acknowledges and agrees that Executive is executing this Agreement voluntarily and without any duress or undue influence by the Company or anyone else.
Executive further acknowledges and agrees that Executive has carefully read this Agreement and that Executive has asked any questions needed for Executive to understand the terms, consequences and binding effect of this Agreement and fully
understands it, including that Executive is waiving Executive’s right to a jury trial. Finally, Executive agrees that Executive has been provided an opportunity to seek the advice of an attorney of Executive’s choice before
signing this Agreement. 
 17. Integration. This Agreement, together with any Company equity plans and equity agreements
and the Proprietary Information Agreement represents the entire agreement and understanding between the parties as to the subject matter herein and supersedes all prior or contemporaneous agreements whether written or oral, including the Prior
Employment Agreement and the offer letter between the Company and Executive dated January 19, 2001. This Agreement may be modified only by agreement of the parties by a written instrument executed by the parties that is designated as an
amendment to this Agreement. 
 18. Waiver of Breach. The waiver of a breach of any term or provision of this Agreement,
which must be in writing, will not operate as or be construed to be a waiver of any other previous or subsequent breach of this Agreement. 
 19. Headings. All captions and section headings used in this Agreement are for convenient reference only and do not form a part of this Agreement. 

  
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 20. Tax Withholding. All payments made pursuant to this Agreement will be subject to
withholding of applicable taxes. 
 21. Governing Law. This Agreement will be governed by the laws of the State of
Washington (with the exception of its conflict of laws provisions). 
 22. Acknowledgment. Executive acknowledges that he
has had the opportunity to discuss this matter with and obtain advice from his private attorney, has had sufficient time to, and has carefully read and fully understands all the provisions of this Agreement, and is knowingly and voluntarily entering
into this Agreement. 
 23. Counterparts. This Agreement may be executed in counterparts, and each counterpart will have
the same force and effect as an original and will constitute an effective, binding agreement on the part of each of the undersigned. 
 [Remainder of Page Intentionally Left Blank] 
 [Signature Page
Follows] 

  
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 IN WITNESS WHEREOF, each of the parties has executed this Agreement, in the case of the
Company by their duly authorized officers, as of the day and year first above written. 
 Company: 

 

									
	Impinj, Inc.	 		 	William T. Colleran, Ph.D.
					
	By:	 	/s/ Evan Fein	 		 	By:	 	/s/ William T. Colleran
			
	Evan Fein	 		 	
	Vice President, Finance and Administration	 		 	
			
	Dated: 12/23, 2008	 		 	Dated: 12/31, 2008

[SIGNATURE PAGE TO COLLERAN’S EMPLOYMENT AGREEMENT]

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