PI · Insider Trading
Impinj, Inc. Common Stock
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.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-21 | Arthur L Valdez Jr | Director | M | +1,220 | — |
| 2026-10-13 | Chris Ph.d. Diorio | CHIEF EXECUTIVE OFFICER | G | −10,000 | — |
| 2026-09-24 | Cary Baker | CHIEF FINANCIAL OFFICER | MIXED | +651 | −$75.13K |
| 2026-09-24 | Chris Ph.d. Diorio | CHIEF EXECUTIVE OFFICER | MIXED | +1,844 | −$212.11K |
| 2026-09-21 | Cary Baker | CHIEF FINANCIAL OFFICER | Sell | −8,892 | −$1.65M |
| 2026-09-16 | Miron Washington | Director | Sell | −800 | −$138.61K |
| 2026-09-15 | Chris Ph.d. Diorio | CHIEF EXECUTIVE OFFICER | G | −10,000 | — |
| 2026-08-21 | Chris Ph.d. Diorio | CHIEF EXECUTIVE OFFICER | MIXED | +2,276 | −$235.92K |
| 2026-08-21 | Cary Baker | CHIEF FINANCIAL OFFICER | MIXED | +1,054 | −$109.42K |
| 2026-08-18 | Chris Ph.d. Diorio | CHIEF EXECUTIVE OFFICER | G | −10,000 | — |
| 2026-08-12 | Cary Baker | CHIEF FINANCIAL OFFICER | Sell | −1,429 | −$264.37K |
| 2026-07-14 | Chris Ph.d. Diorio | CHIEF EXECUTIVE OFFICER | G | −10,000 | — |
| 2026-06-24 | Chris Ph.d. Diorio | CHIEF EXECUTIVE OFFICER | MIXED | +1,843 | −$149.89K |
| 2026-06-24 | Cary Baker | CHIEF FINANCIAL OFFICER | MIXED | +652 | −$53.09K |
| 2026-06-16 | Chris Ph.d. Diorio | CHIEF EXECUTIVE OFFICER | G | −10,000 | — |
| 2026-06-10 | SYLEBRA CAPITAL LLC | Director | Sell | −57,633 | −$7.41M |
| 2026-06-10 | SYLEBRA CAPITAL LLC | Director | Sell | −64,633 | −$8.30M |
| 2026-06-09 | Chris Ph.d. Diorio | CHIEF EXECUTIVE OFFICER | J | — | — |
| 2026-06-09 | SYLEBRA CAPITAL LLC | Director | Sell | −47,479 | −$5.89M |
| 2026-06-08 | SYLEBRA CAPITAL LLC | Director | Sell | −33,412 | −$4.57M |
| 2026-06-04 | SYLEBRA CAPITAL LLC | Director | Sell | −45,037 | −$6.39M |
| 2026-06-02 | SYLEBRA CAPITAL LLC | Director | Sell | −55,667 | −$8.35M |
| 2026-05-29 | Daniel Patrick Gibson | Director | M | +3,114 | — |
| 2026-05-29 | Umesh Padval | Director | M | +3,114 | — |
| 2026-05-29 | Arthur L Valdez Jr | Director | A | +1,896 deriv. | — |
| 2026-05-29 | Meera Rao | Director | M | +3,114 | — |
| 2026-05-29 | Miron Washington | Director | M | +3,114 | — |
| 2026-05-29 | Steve Sanghi | Director | M | +3,425 | — |
| 2026-05-12 | SYLEBRA CAPITAL LLC | Director | Sell | +22,018 | +$3.40M |
| 2026-05-12 | SYLEBRA CAPITAL LLC | Director | Sell | −73,810 | −$11.31M |
| 2026-05-11 | SYLEBRA CAPITAL LLC | Director | Sell | −36,171 | −$5.52M |
| 2026-05-11 | SYLEBRA CAPITAL LLC | Director | Sell | −36,171 | −$5.52M |
| 2026-03-24 | Cary Baker | CHIEF FINANCIAL OFFICER | MIXED | +1,126 | −$74.06K |
| 2026-03-24 | Chris Ph.d. Diorio | CHIEF EXECUTIVE OFFICER | MIXED | +3,417 | −$224.40K |
| 2026-02-23 | Cary Baker | CHIEF FINANCIAL OFFICER | MIXED | +6,274 | −$285.77K |
| 2026-02-23 | Chris Ph.d. Diorio | CHIEF EXECUTIVE OFFICER | MIXED | +14,299 | −$951.09K |
| 2026-02-19 | Chris Ph.d. Diorio | CHIEF EXECUTIVE OFFICER | G | −1,836 | — |
| 2025-12-23 | Chris Ph.d. Diorio | CHIEF EXECUTIVE OFFICER | MIXED | +3,417 | −$381.47K |
| 2025-12-23 | Cary Baker | CHIEF FINANCIAL OFFICER | MIXED | +1,124 | −$125.90K |
| 2025-12-15 | SYLEBRA CAPITAL LLC | — | Sell | −561,094 | −$84.47M |
| 2025-12-10 | SYLEBRA CAPITAL LLC | — | Sell | −174,276 | −$27.13M |
| 2025-12-05 | Daniel Patrick Gibson | Director | Sell | −91,522 | −$15.31M |
| 2025-12-03 | Daniel Patrick Gibson | Director | Sell | −145,864 | −$24.46M |
| 2025-12-01 | Daniel Patrick Gibson | Director | Sell | −113,706 | −$19.57M |
| 2025-11-26 | Cary Baker | CHIEF FINANCIAL OFFICER | G | −1,000 | — |
| 2025-11-26 | Daniel Patrick Gibson | Director | Sell | −156,124 | −$25.66M |
| 2025-11-24 | SYLEBRA CAPITAL LLC | — | Sell | −22,254 | −$3.47M |
| 2025-11-20 | Chris Ph.d. Diorio | CHIEF EXECUTIVE OFFICER | G | −7,000 | — |
| 2025-11-14 | Daniel Patrick Gibson | Director | Sell | −7,544 | −$1.18M |
| 2025-11-13 | Daniel Patrick Gibson | Director | Sell | −60,000 | −$9.34M |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Daniel Patrick Gibson | Director | 1,045,181 | $168.92M |
| SYLEBRA CAPITAL LLC | Director | 795,048 | $128.49M |
| Chris Ph.d. Diorio | CHIEF EXECUTIVE OFFICER | 545,627 | $88.18M |
| Cary Baker | CHIEF FINANCIAL OFFICER | 81,039 | $13.10M |
| Hussein Mecklai | CHIEF OPERATING OFFICER | 76,313 | $12.33M |
| Jeffrey Dossett | CHIEF REVENUE OFFICER | 73,674 | $11.91M |
| Steve Sanghi | Director | 53,474 | $8.64M |
| Meera Rao | Director | 11,322 | $1.83M |
| Cathal G Phelan | CHIEF INNOVATION OFFICER | 10,923 | $1.77M |
| Umesh Padval | Director | 6,654 | $1.08M |
| Miron Washington | Director | 4,354 | $703.67K |
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.
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.