Cary Baker - 23 Sep 2025 Form 4 Insider Report for IMPINJ INC (PI)

Role
CHIEF FINANCIAL OFFICER
Signature
/s/ Yukio Morikubo, Attorney in fact for Cary Baker
Issuer symbol
PI
Transactions as of
23 Sep 2025
Net transactions value
-$135,398
Form type
4
Filing time
24 Sep 2025, 16:30:10 UTC
Previous filing
21 Aug 2025
Next filing
26 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Baker Cary CHIEF FINANCIAL OFFICER 400 FAIRVIEW AVE N. SUITE 1200, SEATTLE /s/ Yukio Morikubo, Attorney in fact for Cary Baker 24 Sep 2025 0001705407

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction PI Common Stock Options Exercise $0 +781 +0.97% $0.000000 81,135 23 Sep 2025 Direct
transaction PI Common Stock Options Exercise $0 +479 +0.59% $0.000000 81,614 23 Sep 2025 Direct
transaction PI Common Stock Options Exercise $0 +597 +0.73% $0.000000 82,211 23 Sep 2025 Direct
transaction PI Common Stock Tax liability $135,398 -732 -0.89% $184.97 81,479 23 Sep 2025 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction PI Restricted Stock Units Options Exercise $0 -781 -33% $0.000000 1,563 23 Sep 2025 Common Stock 781 $0.000000 Direct F2, F3
transaction PI Restricted Stock Units Options Exercise $0 -479 -14% $0.000000 2,875 23 Sep 2025 Common Stock 479 $0.000000 Direct F2, F4
transaction PI Restricted Stock Units Options Exercise $0 -597 -9.1% $0.000000 5,966 23 Sep 2025 Common Stock 597 $0.000000 Direct F2, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 In an exempt disposition to the Issuer under Rule 16b-3(e), the Reporting Person remitted shares to the Issuer in connection with the satisfaction of tax withholding obligations arising out of the vesting of restricted stock units, or RSUs.
F2 Each RSU represents a contingent right to receive one share of Impinj common stock.
F3 On March 23, 2022, the reporting person was granted 12,500 RSUs. One-sixteenth of these vested on September 23, 2025.
F4 On March 23, 2023, the reporting person was granted 7,665 RSUs. One-sixteenth of these vested on September 23, 2025.
F5 On March 23, 2024, the reporting person was granted 9,545 RSUs. One-sixteenth of these vested on September 23, 2025.