Impinj officer Cary Baker proposes $1.91M share sale

Charles Schwab & Co., Inc. is named as broker, and the notice gives December 10, 2025, as the plan adoption or instruction date if Rule 10b5-1 applies.

Accepted by SEC EDGAR 08/10/2026 - 05:34 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Impinj Inc. (PI) is identified as issuer in Officer Cary Baker’s notice of a proposed sale of 10,321 common shares, with an aggregate market value of $1,909,385 and an approximate sale date of August 10, 2026. The notice lists December 10, 2025, as the date of plan adoption or giving of instruction if relying on Rule 10b5-1; Charles Schwab & Co., Inc. is named as broker.

Key Figures

Common shares to be sold: 10,321 shares Aggregate market value: $1,909,385 Shares outstanding: 30,554,413 shares +2 more

5 metrics

Common shares to be sold 10,321 shares Proposed sale; approximate sale date August 10, 2026

Aggregate market value $1,909,385 Securities listed for sale

Shares outstanding 30,554,413 shares Issuer shares outstanding listed in the securities information

Shares acquired through PSU / RSU lapse 8,490 shares Acquired February 24, 2023

Shares acquired through restricted stock lapse 1,831 shares Acquired March 23, 2023

Key Terms

Rule 10b5-1, PSU / RSU Lapse, Restricted Stock Lapse

3 terms

Rule 10b5-1 regulatory

"If Relying on Rule 10b5-1"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

PSU / RSU Lapse technical

"Nature of Acquisition Transaction: PSU / RSU Lapse"

Restricted Stock Lapse technical

"Nature of Acquisition Transaction: Restricted Stock Lapse"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many PI shares is Cary Baker proposing to sell?

Officer Cary Baker’s notice lists a proposed sale of 10,321 Impinj common shares, with an aggregate market value of $1,909,385 and an approximate sale date of August 10, 2026. Charles Schwab & Co., Inc. is named as broker.

What Rule 10b5-1 date is listed for Cary Baker’s proposed PI sale?

The notice lists December 10, 2025, as the date of plan adoption or giving of instruction if relying on Rule 10b5-1.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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: Filer Information

Filer CIK	0001705407
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

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	Baker Cary
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 filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Charles Schwab & Co., Inc. 3000 Schwab Way Westlake TX 76262	10321	1909385.00	30554413	08/10/2026	NASDAQ

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:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	02/24/2023	PSU / RSU Lapse	IMPINJ, INC.			8490	02/24/2023	Equity Compensation
Common	03/23/2023	Restricted Stock Lapse	IMPINJ, INC.			1831	03/23/2023	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.

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.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	08/10/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	12/10/2025
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	CARY BAKER
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)