IMPINJ INC (PI)
Data as of , from SEC Form 4 filings.
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Cary Baker - OfficerOpen-market sale$1.65M- Miron Washington - DirectorOpen-market sale$139K
About IMPINJ INC (PI)
Impinj Inc operates a platform that enables wireless connectivity to everyday items by delivering each item's identity, location, and authenticity to business and consumer applications. Its platform includes endpoint integrated circuits (ICs) product, a miniature radios-on-a-chip, which attach to and identify their host items; and connectivity layer that comprises readers, gateways, and reader ICs to wirelessly identify, locate, authenticate, and engage endpoints via RAIN, as well as provide power to and communicate bidirectionally with endpoint ICs. Geographically, the company has a business presence in the Americas, Asia Pacific, Europe, Middle East and Africa, of which key revenue is derived from the operations in the Asia Pacific region.
- SEATTLE, WA
- 457
- 2016
- XNAS
PI Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 3 | 11,121 | $2.05M |
| Option exercise | 12 | 19,216 | |
| Tax withholding / forfeiture | 4 | 3,783 | |
PI insider transactions (Form 4)
8493 Form 4 filings on record, the earliest from Oct 15, 2024, newest first. Filing history page 1 of 3.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
 Chris Ph.D. Diorio - Officer | Gift | Common Stock | 10,000 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Option exercise | Common Stock | 1,224 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Option exercise | Common Stock | 1,817 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Tax withholding / forfeiture | Common Stock | 1,197 | $177.20 | $212K | |
| Chris Ph.D. Diorio - Officer | Option exercise | Restricted Stock Units | 1,224 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Option exercise | Restricted Stock Units | 1,817 | $0.00 | - | |
| Cary Baker - Officer | Option exercise | Common Stock | 479 | $0.00 | - | |
| Cary Baker - Officer | Option exercise | Common Stock | 596 | $0.00 | - | |
| Cary Baker - Officer | Tax withholding / forfeiture | Common Stock | 424 | $177.20 | $75K | |
| Cary Baker - Officer | Option exercise | Restricted Stock Units | 479 | $0.00 | - | |
| Cary Baker - Officer | Option exercise | Restricted Stock Units | 596 | $0.00 | - | |
| Cary Baker - Officer | Open-market sale | Common Stock | 8,892 | $185.00 | $1.65M | |
| Miron Washington - Director | Open-market sale | Common Stock | 800 | $173.26 | $139K | |
| Chris Ph.D. Diorio - Officer | Gift | Common Stock | 10,000 | $0.00 | - | |
| Cary Baker - Officer | Option exercise | Common Stock | 1,739 | $0.00 | - | |
| Cary Baker - Officer | Tax withholding / forfeiture | Common Stock | 685 | $159.73 | $109K | |
| Cary Baker - Officer | Option exercise | Restricted Stock Units | 1,739 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Option exercise | Common Stock | 3,753 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Tax withholding / forfeiture | Common Stock | 1,477 | $159.73 | $236K | |
| Chris Ph.D. Diorio - Officer | Option exercise | Restricted Stock Units | 3,753 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Gift | Common Stock | 10,000 | $0.00 | - | |
| Cary Baker - Officer | Open-market sale | Common Stock | 1,429 | $185.00 | $264K | |
| Chris Ph.D. Diorio - Officer | Gift | Common Stock | 10,000 | $0.00 | - | |
| Cary Baker - Officer | Option exercise | Restricted Stock Units | 479 | $0.00 | - | |
| Cary Baker - Officer | Option exercise | Restricted Stock Units | 597 | $0.00 | - | |
| Cary Baker - Officer | Option exercise | Common Stock | 479 | $0.00 | - | |
| Cary Baker - Officer | Option exercise | Common Stock | 597 | $0.00 | - | |
| Cary Baker - Officer | Tax withholding / forfeiture | Common Stock | 424 | $125.22 | $53K | |
| Chris Ph.D. Diorio - Officer | Option exercise | Restricted Stock Units | 1,817 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Option exercise | Common Stock | 1,223 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Option exercise | Common Stock | 1,817 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Tax withholding / forfeiture | Common Stock | 1,197 | $125.22 | $150K | |
| Chris Ph.D. Diorio - Officer | Option exercise | Restricted Stock Units | 1,223 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Gift | Common Stock | 10,000 | $0.00 | - | |
| SYLEBRA CAPITAL LLC - Director | Open-market sale | Common Stock | 12,528 | $125.97 | $1.58M | |
| SYLEBRA CAPITAL LLC - Director | Open-market sale | Common Stock | 12,105 | $127.36 | $1.54M | |
| SYLEBRA CAPITAL LLC - Director | Open-market sale | Common Stock | 33,000 | $130.07 | $4.29M | |
| SYLEBRA CAPITAL LLC - Director | Open-market sale | Common Stock | 11,602 | $128.87 | $1.50M | |
| SYLEBRA CAPITAL LLC - Director | Open-market sale | Common Stock | 35,877 | $122.50 | $4.39M | |
| Chris Ph.D. Diorio - Officer | Other | Common Stock | 180,000 | $156.68 footnote F1 | $28.20M | |
| Chris Ph.D. Diorio - Officer | Other | Common Stock | 180,000 | $156.68 footnote F1 | $28.20M | |
| ||||||
| SYLEBRA CAPITAL LLC - Director | Open-market sale | Common Stock | 33,412 | $136.84 | $4.57M | |
| SYLEBRA CAPITAL LLC - Director | Open-market sale | Common Stock | 38,724 | $142.31 | $5.51M | |
| SYLEBRA CAPITAL LLC - Director | Open-market sale | Common Stock | 6,313 | $139.17 | $879K | |
| SYLEBRA CAPITAL LLC - Director | Open-market sale | Common Stock | 48,504 | $150.78 | $7.31M | |
| SYLEBRA CAPITAL LLC - Director | Open-market sale | Common Stock | 7,163 | $144.29 | $1.03M | |
| Daniel Patrick Gibson | Option exercise | Common Stock | 3,114 | $0.00 | - | |
| Daniel Patrick Gibson | Option exercise | Restricted Stock Units | 3,114 | $0.00 | - | |
| Daniel Patrick Gibson | Grant or award | Restricted Stock Units | 1,896 | $0.00 | - | |
| Arthur L. Valdez Jr. | Grant or award | Restricted Stock Units | 1,896 | $0.00 | - | |
| Miron Washington | Option exercise | Common Stock | 3,114 | $0.00 | - | |
| Miron Washington | Option exercise | Restricted Stock Units | 3,114 | $0.00 | - | |
| Miron Washington | Grant or award | Restricted Stock Units | 1,896 | $0.00 | - | |
| Umesh Padval | Option exercise | Common Stock | 3,114 | $0.00 | - | |
| Umesh Padval | Option exercise | Restricted Stock Units | 3,114 | $0.00 | - | |
| Umesh Padval | Grant or award | Restricted Stock Units | 1,896 | $0.00 | - | |
 Steve Sanghi | Option exercise | Common Stock | 3,425 | $0.00 | - | |
| Steve Sanghi | Option exercise | Restricted Stock Units | 3,425 | $0.00 | - | |
| Steve Sanghi | Grant or award | Restricted Stock Units | 2,085 | $0.00 | - | |
| Meera Rao | Option exercise | Common Stock | 3,114 | $0.00 | - | |
| Meera Rao | Option exercise | Restricted Stock Units | 3,114 | $0.00 | - | |
| Meera Rao | Grant or award | Restricted Stock Units | 1,896 | $0.00 | - | |
| SYLEBRA CAPITAL LLC - Director | Open-market sale | Common Stock | 25,896 | $152.73 | $3.96M | |
| SYLEBRA CAPITAL LLC - Director | Open-market sale | Common Stock | 1,560 | $151.32 | $236K | |
| SYLEBRA CAPITAL LLC - Director | Open-market sale | Common Stock | 9,522 | $149.97 | $1.43M | |
| SYLEBRA CAPITAL LLC - Director | Open-market sale | Common Stock | 24,126 | $154.46 | $3.73M | |
| SYLEBRA CAPITAL LLC - Director | Open-market sale | Common Stock | 12,706 | $154.46 | $1.96M | |
| SYLEBRA CAPITAL LLC - Director | Open-market sale | Common Stock | 36,171 | $152.73 | $5.52M | |
| Cary Baker - Officer | Option exercise | Common Stock | 782 | $0.00 | - | |
| Cary Baker - Officer | Option exercise | Common Stock | 479 | $0.00 | - | |
| Cary Baker - Officer | Option exercise | Common Stock | 597 | $0.00 | - | |
| Cary Baker - Officer | Tax withholding / forfeiture | Common Stock | 732 | $101.17 | $74K | |
| Cary Baker - Officer | Option exercise | Restricted Stock Units | 782 | $0.00 | - | |
| Cary Baker - Officer | Option exercise | Restricted Stock Units | 479 | $0.00 | - | |
| Cary Baker - Officer | Option exercise | Restricted Stock Units | 597 | $0.00 | - | |
| Cary Baker - Officer | Grant or award | Restricted Stock Units | 7,627 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Option exercise | Common Stock | 2,594 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Option exercise | Common Stock | 1,224 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Option exercise | Common Stock | 1,817 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Tax withholding / forfeiture | Common Stock | 2,218 | $101.17 | $224K | |
| Chris Ph.D. Diorio - Officer | Option exercise | Restricted Stock Units | 2,594 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Option exercise | Restricted Stock Units | 1,224 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Option exercise | Restricted Stock Units | 1,817 | $0.00 | - | |
| Chris Ph.D. Diorio - Officer | Grant or award | Restricted Stock Units | 24,806 | $0.00 | - | |
Item 8.01, 9.01
Item 2.02, 9.01
Item 5.07
Item 2.02, 9.01
Recent PI Form 144 notices of proposed sale
2An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| WASHINGTON MIRON | Director | 800 | $139K | View on EDGAR | |
| Baker Cary | Officer | 10,321 | $1.91M |
PI insider trading FAQ
What is the latest insider trade for PI?
IMPINJ INC (PI) had 10 insider filings in the last 90 days, with the most recent on 2026-10-13. The full record for PI runs to 93 Form 4 filings, the earliest from 2024-10-15. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying PI stock?
No insider purchases of PI were filed in the last 90 days.
How many insiders are selling PI stock?
3 insider sales of PI were filed in the last 90 days, totaling $2.05M.
Where can I see PI SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects PI Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Information Technology companies with insider activity
Recent insider filings
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Chris Ph.D. Diorio view on EDGAR
- - Chris Ph.D. Diorio view on EDGAR
- - Cary Baker view on EDGAR
- - Cary Baker view on EDGAR
- - Miron Washington view on EDGAR
- - Chris Ph.D. Diorio view on EDGAR
- - Cary Baker view on EDGAR
- - Chris Ph.D. Diorio view on EDGAR
- - Chris Ph.D. Diorio view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Information Technology
- Where PI's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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