Form 4 for PI IMPINJ INC
Accepted 2026-09-24 18:07:28 ET · period of report 2026-09-23 · accession 0001677721-26-000018 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-09-24 18:07 | 2026-09-23 | PI | DIORIO CHRIS PH.D. | CEO, Dir | M - OptEx | $0.00 | +3,041 | 357.5K | +0.9% | $0 |
| D | 2026-09-24 18:07 | 2026-09-23 | PI | DIORIO CHRIS PH.D. | CEO, Dir | F - Tax | $177.20 | -1,197 | 356.3K | -0.3% | -$212.1K |
| DM | 2026-09-24 18:07 | 2026-09-23 | PI | DIORIO CHRIS PH.D. | CEO, Dir | M - OptEx | $0.00 | -3,041 | 10.9K | -22% | $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 | 2026-09-23 | M | A | 1,224 | $0.00 | 355,645 | D | — | — | |
| 2 | Common | Common Stock | 2026-09-23 | M | A | 1,817 | $0.00 | 357,462 | D | — | — | |
| 3 | Common | Common Stock | 2026-09-23 | F | D | 1,197 | $177.20 | 356,265 | 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. |
| 4 | Derivative | Restricted Stock Units | 2026-09-23 | M | D | 1,224 | $0.00 | 2,448 | D | $0.00 · — to — | 1,224 Common Stock | (F2) Each RSU represents a contingent right to receive one share of Impinj common stock. (F3) On March 23, 2023, the reporting person was granted 19,580 RSUs. One-sixteenth of these vested on September 23, 2026. (F3) On March 23, 2023, the reporting person was granted 19,580 RSUs. One-sixteenth of these vested on September 23, 2026. |
| 5 | Derivative | Restricted Stock Units | 2026-09-23 | M | D | 1,817 | $0.00 | 10,904 | D | $0.00 · — to — | 1,817 Common Stock | (F2) Each RSU represents a contingent right to receive one share of Impinj common stock. (F4) On March 23, 2024, the reporting person was granted 29,075 RSUs. One-sixteenth of these vested on September 23, 2026. (F4) On March 23, 2024, the reporting person was granted 29,075 RSUs. One-sixteenth of these vested on September 23, 2026. |