SEC Form 4 · accession 0001705407-26-000012
IMPINJ INC · PI
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Cary Baker
Officer — CHIEF FINANCIAL OFFICER
Period of report
Sep 23, 2026
Accepted (ET)
Sep 24, 2026 · 6:06 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001114995
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Sep 23, 2026 | M | 479 | $0.00 | A | 80,867 | D | |
| Common Stock | Sep 23, 2026 | M | 596 | $0.00 | A | 81,463 | D | |
| Common Stock | Sep 23, 2026 | F | 424 | $177.20 | D | 81,039 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Stock UnitsF2,F3 | $0.00 | Sep 23, 2026 | M | 479 | D | — | — | Common Stock | 479 | 959 | D |
| Restricted Stock UnitsF2,F4 | $0.00 | Sep 23, 2026 | M | 596 | D | — | — | Common Stock | 596 | 3,580 | D |
Explanation of responses
- F1In 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.
- F2Each RSU represents a contingent right to receive one share of Impinj common stock.
- F3On March 23, 2023, the reporting person was granted 7,665 RSUs. One-sixteenth of these vested on September 23, 2026.
- F4On March 23, 2024, the reporting person was granted 9,545 RSUs. One-sixteenth of these vested on September 23, 2026.