Company profile
Impinj Inc Insider Trading
PIEvery SEC Form 4 insider trading filing for Impinj Inc (PI) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Electronic Components, NEC
- CIK
- 0001114995
- Filings
- 264
- Insiders
- 14
- Last filing
- 2026-09-21
Activity summary
Recent insider activity is bearish. Over the last 30 days, insiders net sold $139K across 1 transaction.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Impinj Inc insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $237.3M.
90 day insight
Over the last 90 days, Impinj Inc insiders bought $0 (4 transactions) and sold $484K (3 transactions).
- Most active insider: Chris Ph.d. Diorio with 6 transactions totaling $236K.
- Largest single sale: $1.6M by Cary Baker on Sep 21, 2026.
- 40% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.
Activity is mixed — buys and sales are roughly balanced.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 21, 2026 | Cary Baker | PI | Sale10b5 | 8,892 | $185.00 | $1.65M |
| Sep 15, 2026 | Miron Washington | PI | Sale | 800 | $173.26 | $139K |
| Sep 14, 2026 | Chris Ph.d. Diorio | PI | Gift10b5 | 10,000 | — | — |
| Aug 20, 2026 | Chris Ph.d. Diorio | PI | Option Exercise | 3,753 | — | — |
| Aug 20, 2026 | Chris Ph.d. Diorio | PI | Tax Withholding | 1,477 | $159.73 | $236K |
45 more transactions hidden
Free account · No credit card required
Building something? Get API access →
Query this yourself
The same rows, over the API.
curl "https://api.form4api.com/v1/transactions?ticker=PI" \
-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Impinj Inc as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →