Form 144 Filer Information UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Form 144

NOTICE OF PROPOSED SALE OF SECURITIES
PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933

Form 144

144: Issuer Information

Name of Issuer
IMPINJ INC
SEC File Number
001-37824
Address of Issuer
400 FAIRVIEW AVENUE NORTH
SUITE 1200
SEATTLE
WASHINGTON
98109
Phone
206-517-5300
Name of Person for Whose Account the Securities are To Be Sold
DOSSETT JEFFREY
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person fling this notice.
Relationship to Issuer
  1. Officer

144: Securities Information

Securities Information Record: 1
Title of the Class of Securities To Be Sold
Common
Name and Address of the Broker
Charles Schwab & Co., Inc.
3000 Schwab Way
Westlake
TEXAS
76262
Number of Shares or Other Units To Be Sold
629
Aggregate Market Value
70480.00
Number of Shares or Other Units Outstanding
25914998
Approximate Date of Sale
11/01/2022
Name the Securities Exchange
NASDAQ

144: Securities To Be Sold

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:
Securities To Be Sold Record: 1
Title of the Class
Common
Date you Acquired
10/31/2022
Nature of Acquisition Transaction
Restricted Stock Lapse - See Remarks
Name of Person from Whom Acquired
Relationship to Issuer IMPINJ, INC.
Is this a Gift?
Amount of Securities Acquired
629
Date of Payment
10/31/2022
Nature of Payment
Equity Compensation

If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

144: Securities Sold During The Past 3 Months

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.
Securities Sold During The Past 3 Months Record: 1
Name and Address of Seller
JEFF DOSSETT
400 Fairview Avenue North, Suite 1200
Seattle
WASHINGTON
98109
Title of Securities Sold
IMPINJ, INC.
Date of Sale
08/01/2022
Amount of Securities Sold
6612
Gross Proceeds
546275.00
Securities Sold During The Past 3 Months Record: 2
Name and Address of Seller
JEFF DOSSETT
400 Fairview Avenue North, Suite 1200
Seattle
WASHINGTON
98109
Title of Securities Sold
IMPINJ, INC.
Date of Sale
09/01/2022
Amount of Securities Sold
2000
Gross Proceeds
176100.00
Securities Sold During The Past 3 Months Record: 3
Name and Address of Seller
JEFF DOSSETT
400 Fairview Avenue North, Suite 1200
Seattle
WASHINGTON
98109
Title of Securities Sold
IMPINJ, INC.
Date of Sale
09/16/2022
Amount of Securities Sold
777
Gross Proceeds
68318.00
Securities Sold During The Past 3 Months Record: 4
Name and Address of Seller
JEFF DOSSETT
400 Fairview Avenue North, Suite 1200
Seattle
WASHINGTON
98109
Title of Securities Sold
IMPINJ, INC.
Date of Sale
10/03/2022
Amount of Securities Sold
2000
Gross Proceeds
160380.00
Securities Sold During The Past 3 Months Record: 5
Name and Address of Seller
JEFF DOSSETT
400 Fairview Avenue North, Suite 1200
Seattle
WASHINGTON
98109
Title of Securities Sold
IMPINJ, INC.
Date of Sale
10/13/2022
Amount of Securities Sold
488
Gross Proceeds
38657.00

144: Remarks and Signature

Remarks
Shares sold to cover tax obligation from settlement of vested Restricted Stock Units.
Date of Notice
11/01/2022
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

    ATTENTION:

    The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
    Signature
    JEFF DOSSETT

    ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

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