Form 4 for PI IMPINJ INC
Accepted 2026-08-21 19:08:50 ET · period of report 2026-08-20 · accession 0001677721-26-000014 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-08-21 19:08 | 2026-08-20 | PI | DIORIO CHRIS PH.D. | CEO, Dir | M - OptEx | $0.00 | +3,753 | 365.9K | +1% | $0 |
| D | 2026-08-21 19:08 | 2026-08-20 | PI | DIORIO CHRIS PH.D. | CEO, Dir | F - Tax | $159.73 | -1,477 | 364.4K | -0.4% | -$235.9K |
| D | 2026-08-21 19:08 | 2026-08-20 | PI | DIORIO CHRIS PH.D. | CEO, Dir | M - OptEx | $0.00 | -3,753 | 11.3K | -25% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-08-20 | M | A | 3,753 | $0.00 | 365,898 | D | — | — | |
| 2 | Common | Common Stock | 2026-08-20 | F | D | 1,477 | $159.73 | 364,421 | D | — | — | (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. |
| 3 | Derivative | Restricted Stock Units | 2026-08-20 | M | D | 3,753 | $0.00 | 11,262 | D | $0.00 · — to — | 3,753 Common Stock | (F2) Each RSU represents a contingent right to receive one share of Impinj common stock. (F3) On August 20, 2025, the reporting person was granted 15,015 RSUs. One-fourth of these vested on August 20, 2026. (F3) On August 20, 2025, the reporting person was granted 15,015 RSUs. One-fourth of these vested on August 20, 2026. |