PI (Impinj, Inc. Common Stock)
Insider Trading Activity
Every open-market purchase and sale reported by PI officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-21 | CHRIS PH.D. DIORIO | CHIEF EXECUTIVE OFFICER | MIXED | — | — |
| 2026-08-21 | Cary Baker | CHIEF FINANCIAL OFFICER | MIXED | — | — |
| 2026-08-18 | CHRIS PH.D. DIORIO | CHIEF EXECUTIVE OFFICER | G | — | — |
| 2026-08-12 | Cary Baker | CHIEF FINANCIAL OFFICER | Sell | — | — |
| 2026-07-14 | CHRIS PH.D. DIORIO | CHIEF EXECUTIVE OFFICER | G | — | — |
| 2026-06-24 | CHRIS PH.D. DIORIO | CHIEF EXECUTIVE OFFICER | MIXED | — | — |
| 2026-06-24 | Cary Baker | CHIEF FINANCIAL OFFICER | MIXED | — | — |
| 2026-06-16 | CHRIS PH.D. DIORIO | CHIEF EXECUTIVE OFFICER | G | — | — |
| 2026-06-10 | SYLEBRA CAPITAL LLC | Director | Sell | — | — |
| 2026-06-10 | SYLEBRA CAPITAL LLC | Director | Sell | — | — |
| 2026-06-09 | CHRIS PH.D. DIORIO | CHIEF EXECUTIVE OFFICER | J | — | — |
| 2026-06-09 | SYLEBRA CAPITAL LLC | Director | Sell | — | — |
| 2026-06-08 | SYLEBRA CAPITAL LLC | Director | Sell | — | — |
| 2026-06-04 | SYLEBRA CAPITAL LLC | Director | Sell | — | — |
| 2026-06-02 | SYLEBRA CAPITAL LLC | Director | Sell | — | — |
| 2026-05-29 | Daniel Patrick Gibson | Director | M | — | — |
| 2026-05-29 | UMESH PADVAL | Director | M | — | — |
| 2026-05-29 | Arthur L Valdez Jr | Director | A | — | — |
| 2026-05-29 | Meera Rao | Director | M | — | — |
| 2026-05-29 | MIRON WASHINGTON | Director | M | — | — |
| 2026-05-29 | Steve Sanghi | Director | M | — | — |
| 2026-05-12 | SYLEBRA CAPITAL LLC | Director | Sell | — | — |
| 2026-05-12 | SYLEBRA CAPITAL LLC | Director | Sell | — | — |
| 2026-05-11 | SYLEBRA CAPITAL LLC | Director | Sell | — | — |
| 2026-05-11 | SYLEBRA CAPITAL LLC | Director | Sell | — | — |
| 2026-03-24 | Cary Baker | CHIEF FINANCIAL OFFICER | MIXED | — | — |
| 2026-03-24 | CHRIS PH.D. DIORIO | CHIEF EXECUTIVE OFFICER | MIXED | — | — |
| 2026-02-23 | Cary Baker | CHIEF FINANCIAL OFFICER | MIXED | — | — |
| 2026-02-23 | CHRIS PH.D. DIORIO | CHIEF EXECUTIVE OFFICER | MIXED | — | — |
| 2026-02-19 | CHRIS PH.D. DIORIO | CHIEF EXECUTIVE OFFICER | G | — | — |
| 2025-12-23 | CHRIS PH.D. DIORIO | CHIEF EXECUTIVE OFFICER | MIXED | — | — |
| 2025-12-23 | Cary Baker | CHIEF FINANCIAL OFFICER | MIXED | — | — |
| 2025-12-15 | SYLEBRA CAPITAL LLC | — | Sell | — | — |
| 2025-12-10 | SYLEBRA CAPITAL LLC | — | Sell | — | — |
| 2025-12-05 | Daniel Patrick Gibson | Director | Sell | — | — |
| 2025-12-03 | Daniel Patrick Gibson | Director | Sell | — | — |
| 2025-12-01 | Daniel Patrick Gibson | Director | Sell | — | — |
| 2025-11-26 | Cary Baker | CHIEF FINANCIAL OFFICER | G | — | — |
| 2025-11-26 | Daniel Patrick Gibson | Director | Sell | — | — |
| 2025-11-24 | SYLEBRA CAPITAL LLC | — | Sell | — | — |
| 2025-11-20 | CHRIS PH.D. DIORIO | CHIEF EXECUTIVE OFFICER | G | — | — |
| 2025-11-14 | Daniel Patrick Gibson | Director | Sell | — | — |
| 2025-11-13 | Daniel Patrick Gibson | Director | Sell | — | — |
| 2025-11-12 | SYLEBRA CAPITAL LLC | — | Sell | — | — |
| 2025-11-10 | SYLEBRA CAPITAL LLC | — | Sell | — | — |
| 2025-11-07 | MIRON WASHINGTON | Director | Sell | — | — |
| 2025-11-05 | Daniel Patrick Gibson | Director | Sell | — | — |
| 2025-10-30 | CHRIS PH.D. DIORIO | CHIEF EXECUTIVE OFFICER | M | — | — |
| 2025-10-22 | Arthur L Valdez Jr | Director | A | — | — |
| 2025-09-24 | Cary Baker | CHIEF FINANCIAL OFFICER | MIXED | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | 10%+ Owner | 4,402,076 | — |
| — | 10%+ Owner | 1,388,049 | — |
| — | 10%+ Owner | 1,348,023 | — |
| — | Director | 1,045,181 | — |
| — | Director | 795,048 | — |
| — | CHIEF EXECUTIVE OFFICER | 565,260 | — |
| — | Director | 99,737 | — |
| — | President and COO | 95,211 | — |
| — | CHIEF FINANCIAL OFFICER | 89,965 | — |
| — | CHIEF OPERATING OFFICER | 76,313 | — |
| — | CHIEF REVENUE OFFICER | 73,674 | — |
| — | Director | 53,474 | — |
| — | Chief Financial Officer | 28,463 | — |
| — | Director | 28,257 | — |
| — | Director | 24,266 | — |
| — | Director | 17,125 | — |
| — | Director | 14,850 | — |
| — | Director | 11,322 | — |
| — | CHIEF INNOVATION OFFICER | 10,923 | — |
| — | VP Accounting | 8,135 | — |
| — | Director | 6,654 | — |
| — | Director | 5,154 | — |
| — | Director | 4,754 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the PI quote page; the site-wide leaderboard is on the insider transactions hub.