11 insiders reported 202 Form 4 transactions for IMPINJ INC (PI) over the past 18 months (most recent 2026-08-21). Recent activity: DIORIO CHRIS PH.D. (CHIEF EXECUTIVE OFFICER) Buy 3,753 shares, Baker Cary (CHIEF FINANCIAL OFFICER) Buy 1,739 shares, DIORIO CHRIS PH.D. (CHIEF EXECUTIVE OFFICER) Sell 1,477 shares, Baker Cary (CHIEF FINANCIAL OFFICER) Sell 685 shares, DIORIO CHRIS PH.D. (CHIEF EXECUTIVE OFFICER) Sell 10,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-21 | DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OFFICER | Buy | 3,753 | $0 |
| 2026-08-21 | Baker Cary | CHIEF FINANCIAL OFFICER | Buy | 1,739 | $0 |
| 2026-08-21 | DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OFFICER | Sell | 1,477 | $235,921 |
| 2026-08-21 | Baker Cary | CHIEF FINANCIAL OFFICER | Sell | 685 | $109,415 |
| 2026-08-18 | DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OFFICER | Sell | 10,000 | $0 |
| 2026-08-12 | Baker Cary | CHIEF FINANCIAL OFFICER | Sell | 1,429 | $264,365 |
| 2026-07-14 | DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OFFICER | Sell | 10,000 | $0 |
| 2026-06-24 | DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OFFICER | Sell | 1,197 | $149,888 |
| 2026-06-24 | Baker Cary | CHIEF FINANCIAL OFFICER | Buy | 479 | $0 |
| 2026-06-24 | DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OFFICER | Buy | 1,817 | $0 |
| 2026-06-24 | Baker Cary | CHIEF FINANCIAL OFFICER | Buy | 597 | $0 |
| 2026-06-24 | Baker Cary | CHIEF FINANCIAL OFFICER | Sell | 424 | $53,093 |
| 2026-06-24 | DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OFFICER | Buy | 1,223 | $0 |
| 2026-06-16 | DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OFFICER | Sell | 10,000 | $0 |
| 2026-06-10 | SYLEBRA CAPITAL LLC | Director | Sell | 12,528 | $1.6M |
| 2026-06-10 | SYLEBRA CAPITAL LLC | Director | Sell | 12,528 | $1.6M |
| 2026-06-10 | SYLEBRA CAPITAL LLC | Director | Sell | 33,000 | $4.3M |
| 2026-06-10 | SYLEBRA CAPITAL LLC | Director | Sell | 33,000 | $4.3M |
| 2026-06-10 | SYLEBRA CAPITAL LLC | Director | Sell | 12,105 | $1.5M |
| 2026-06-10 | SYLEBRA CAPITAL LLC | Director | Sell | 19,105 | $2.4M |
| 2026-06-09 | DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OFFICER | Buy | 180,000 | $28.2M |
| 2026-06-09 | SYLEBRA CAPITAL LLC | Director | Sell | 11,602 | $1.5M |
| 2026-06-09 | DIORIO CHRIS PH.D. | CHIEF EXECUTIVE OFFICER | Sell | 180,000 | $28.2M |
| 2026-06-09 | SYLEBRA CAPITAL LLC | Director | Sell | 35,877 | $4.4M |
| 2026-06-08 | SYLEBRA CAPITAL LLC | Director | Sell | 33,412 | $4.6M |
Source: SEC Form 4 filings · as of 2026-08-21