Impinj, Inc.
A maker of tiny silicon chips and readers that give everyday objects—clothing, luggage, medical supplies—a digital identity, so businesses can track them wirelessly without line-of-sight scanning. Founded in 2000 by University of Washington professor Chris Diorio and his Caltech advisor Carver Mead, the company grew out of their research into self-adaptive silicon chips. Its name is a nod to that science: "Impinj" is an acronym for the process "impact-ionized hot-electron injection" behind their early chip research.
Bought 483.2K
Granted 1.7K · Sold 3.07M
Sold 430.0K
Granted 4.9K
Granted 455.6K · Sold 248.9K
Granted 111.3K · Sold 60.7K
Granted 108.5K · Sold 65.5K
Granted 116.0K · Sold 85.9K
Granted 7.4K
Granted 6.7K
Granted 29.8K · Sold 39.3K
Granted 6.7K · Sold 7.0K
Granted 7.0K · Sold 1.8K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Gibson Daniel Patrick +1 co-filerDirector, 10% owner · 9 transactions | — | 30.70Mas of Nov 2023 | — | 483.2K | — |
| Gibson Daniel Patrick +1 co-filerDirector, See Footnote · 38 transactions | — | 4.37M | 1.7K | — | 3.07M |
| Sylebra Capital LLCDirector · 21 transactions | — | 1.62M | — | — | 430.0K |
| Gibson Daniel PatrickDirector · 2 transactions | — | 1.05M | 4.9K | — | — |
| Diorio Chris PH.D.CHIEF EXECUTIVE OFFICER, Director · 232 transactions | -35.3% | 563.8K | 455.6K | — | 248.9K |
| Baker CaryCHIEF FINANCIAL OFFICER · 112 transactions | +78.5% | 89.3K | 111.3K | — | 60.7K |
| Mecklai HusseinCHIEF OPERATING OFFICER · 84 transactions | +112.9% | 75.9Kas of Apr 2025 | 108.5K | — | 65.5K |
| Dossett JeffreyCHIEF REVENUE OFFICER · 119 transactions | +72.4% | 73.7Kas of Feb 2025 | 116.0K | — | 85.9K |
| Sanghi SteveDirector · 3 transactions | +16% | 53.5K | 7.4K | — | — |
| Rao MeeraDirector · 3 transactions | +142.5% | 11.3K | 6.7K | — | — |
| Phelan Cathal GCHIEF INNOVATION OFFICER, Director · 42 transactions | -47.5% | 10.9Kas of May 2025 | 29.8K | — | 39.3K |
| Padval UmeshDirector · 8 transactions | -5% | 6.7K | 6.7K | — | 7.0K |
| Washington MironDirector · 6 transactions | — | 5.2K | 7.0K | — | 1.8K |
| Gibson Daniel Patrick +2 co-filersDirector, 10% owner · 1 transaction | — | 0as of Sep 2024 | — | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 3 years: -3.52M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.