PI
IMPINJ INC
Latest Form 4:Sale$264KbyBaker Cary (CHIEF FINANCIAL OFFICER) · filed Aug 12, 2026
IMPINJ INC (PI) has 55 SEC Form 4 filings (133 transaction rows) in the rolling window, disclosed by 4 distinct insiders. Most recent filing: Aug 21, 2026.
The most active filer is Director SYLEBRA CAPITAL LLC with 34 filings. Insiders have net sold $52.1M over the trailing 6 months.
- Industry:Semiconductors
- CEO:Chris Diorio
- Employees:451
- HQ:Seattle, WA, US
- IPO:2016-07-21
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$227.1M
reported sales (SEC code S)
Unique Insiders
4
in the rolling window
Market Cap
$5.2B
latest known value
| Source | ||||||
|---|---|---|---|---|---|---|
Baker CaryFirst filing | CHIEF FINANCIAL OFFICER | Sale | 1,429 | $264K | Aug 12 | SEC ↗ |
| Director | Sale | 45,528 | $5.9M | Jun 10 | SEC ↗ | |
| Director | Sale | 31,210 | $4.0M | Jun 10 | SEC ↗ | |
| Director | Sale | 47,479 | $5.9M | Jun 9 | SEC ↗ | |
| Director | Sale | 33,412 | $4.6M | Jun 8 | SEC ↗ | |
| Director | Sale | 38,724 | $5.5M | Jun 4 | SEC ↗ | |
| Director | Sale | 6,313 | $879K | Jun 4 | SEC ↗ | |
| Director | Sale | 48,504 | $7.3M | Jun 2 | SEC ↗ | |
| Director | Sale | 7,163 | $1.0M | Jun 2 | SEC ↗ | |
| Director | Sale | 36,978 | $5.6M | May 12 | SEC ↗ | |
| Director | Sale | 36,832 | $5.7M | May 12 | SEC ↗ | |
| Director | Sale | 36,171 | $5.5M | May 11 | SEC ↗ | |
| See Footnote | Sale | 95,345 | $14.6M | Dec 15 | SEC ↗ | |
| See Footnote | Sale | 50,573 | $7.4M | Dec 15 | SEC ↗ | |
| See Footnote | Sale | 134,629 | $20.2M | Dec 15 | SEC ↗ | |
| See Footnote | Sale | 2,494 | $401K | Dec 10 | SEC ↗ | |
| See Footnote | Sale | 40 | $6K | Dec 10 | SEC ↗ | |
| See Footnote | Sale | 84,604 | $13.2M | Dec 10 | SEC ↗ | |
| See Footnote | Sale | 41,221 | $6.9M | Dec 5 | SEC ↗ | |
| See Footnote | Sale | 3,167 | $509K | Dec 5 | SEC ↗ | |
| See Footnote | Sale | 1,373 | $221K | Dec 5 | SEC ↗ | |
| See Footnote | Sale | 31,058 | $5.2M | Dec 3 | SEC ↗ | |
| See Footnote | Sale | 41,874 | $7.0M | Dec 3 | SEC ↗ | |
| See Footnote | Sale | 34,556 | $5.9M | Dec 1 | SEC ↗ | |
| See Footnote | Sale | 22,297 | $3.8M | Dec 1 | SEC ↗ | |
| See Footnote | Sale | 31,952 | $5.1M | Nov 26 | SEC ↗ | |
| See Footnote | Sale | 46,110 | $7.7M | Nov 26 | SEC ↗ | |
| See Footnotes | Sale | 8,081 | $1.3M | Nov 24 | SEC ↗ | |
| See Footnotes | Sale | 3,046 | $472K | Nov 24 | SEC ↗ | |
| See Footnotes | Sale | 3,772 | $590K | Nov 14 | SEC ↗ | |
| See Footnotes | Sale | 30,000 | $4.7M | Nov 13 | SEC ↗ | |
| See Footnotes | Sale | 6,246 | $1.0M | Nov 12 | SEC ↗ | |
| See Footnotes | Sale | 23,157 | $4.0M | Nov 10 | SEC ↗ | |
WASHINGTON MIRONFirst filing | Director | Sale | 342 | $54K | Nov 7 | SEC ↗ |
| See Footnotes | Sale | 1,513 | $306K | Nov 5 | SEC ↗ | |
| CHIEF EXECUTIVE OFFICER | Sale | 5,000 | $910K | Sep 16 | SEC ↗ | |
| CHIEF EXECUTIVE OFFICER | Sale | 4,096 | $769K | Sep 16 | SEC ↗ | |
SYLEBRA CAPITAL LLCFirst filing | See Remarks | Sale | 300,000 | $58.9M | Sep 12 | SEC ↗ |
| CHIEF EXECUTIVE OFFICER | Sale | 5,000 | $962K | Sep 9 | SEC ↗ | |
| CHIEF EXECUTIVE OFFICER | Sale | 5,000 | $974K | Sep 9 | SEC ↗ | |
DIORIO CHRIS PH.D.First filing | CHIEF EXECUTIVE OFFICER | Sale | 5,000 | $903K | Sep 3 | SEC ↗ |
DIORIO CHRIS PH.D.First filing | CHIEF EXECUTIVE OFFICER | Sale | 5,000 | $947K | Sep 3 | SEC ↗ |
Related companies
IMPINJ INC is in the Technology sector.