PI insider trading — Impinj Inc
Over the last 90 days, insiders at Impinj Inc (PI) made 0 open-market purchases worth $0 and 1 open-market sale worth $139K, making them net sellers by $139K. The largest sale was by Washington Miron (Director), who sold 800 shares for $139K on Sep 15, 2026.
Updated Oct 16, 2026.
Recent PI insider transactions
Every Form 4 filed by Impinj Inc officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Oct 12, 2026 | Diorio Chris Ph.D. | CHIEF EXECUTIVE OFFICER | G · Gift · 10b5-1 | Direct | 10,000 | — | — | Form 4 |
| Sep 23, 2026 | Diorio Chris Ph.D. | CHIEF EXECUTIVE OFFICER | M · Option exercise | Direct | 3,041 | — | — | Form 4 |
| Sep 23, 2026 | Diorio Chris Ph.D. | CHIEF EXECUTIVE OFFICER | F · Tax withholding | Direct | 1,197 | $177.20 | $212K | Form 4 |
| Sep 23, 2026 | Baker Cary | CHIEF FINANCIAL OFFICER | M · Option exercise | Direct | 1,075 | — | — | Form 4 |
| Sep 23, 2026 | Baker Cary | CHIEF FINANCIAL OFFICER | F · Tax withholding | Direct | 424 | $177.20 | $75K | Form 4 |
| Sep 21, 2026 | Baker Cary | CHIEF FINANCIAL OFFICER | S · Sale · 10b5-1 | Direct | 8,892 | $185.00 | $1.65M | Form 4 |
| Sep 15, 2026 | Washington Miron | Director | S · Sale | Direct | 800 | $173.26 | $139K | Form 4 |
| Sep 14, 2026 | Diorio Chris Ph.D. | CHIEF EXECUTIVE OFFICER | G · Gift · 10b5-1 | Direct | 10,000 | — | — | Form 4 |
| Aug 20, 2026 | Baker Cary | CHIEF FINANCIAL OFFICER | M · Option exercise | Direct | 1,739 | — | — | Form 4 |
| Aug 20, 2026 | Baker Cary | CHIEF FINANCIAL OFFICER | F · Tax withholding | Direct | 685 | $159.73 | $109K | Form 4 |
| Aug 20, 2026 | Diorio Chris Ph.D. | CHIEF EXECUTIVE OFFICER | M · Option exercise | Direct | 3,753 | — | — | Form 4 |
| Aug 20, 2026 | Diorio Chris Ph.D. | CHIEF EXECUTIVE OFFICER | F · Tax withholding | Direct | 1,477 | $159.73 | $236K | Form 4 |
| Aug 17, 2026 | Diorio Chris Ph.D. | CHIEF EXECUTIVE OFFICER | G · Gift · 10b5-1 | Direct | 10,000 | — | — | Form 4 |
| Aug 10, 2026 | Baker Cary | CHIEF FINANCIAL OFFICER | S · Sale · 10b5-1 | Direct | 1,429 | $185.00 | $264K | Form 4 |
PI insider trading FAQ
Are insiders buying PI stock?
Not on the open market. In the last 90 days, Impinj Inc insiders made no open-market purchases, and 1 open-market sale totaling $139K. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading PI?
Recent sellers: Washington Miron.
Where does PI insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
More stocks with insider activity
Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.