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Impinj Inc (NASDAQ:PI)
US · Delayed Price · Currency is USD
Technology · Semiconductors
173.91+6.84 (+4.10%)
Insider Score
––Not scored
PI Insider Score
Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.
PI Stock Insider Trading Activity
PI stock’s insider trading shows 7 sales on the open market for an estimated $13.86M by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days0 qualifying buys0 insiders$0 bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| DIORIO CHRIS PH.D. CEO | Gift | 10,000 | — | — | 2.8% | 346,265 | Oct 12, 2026 | — | Form 4 |
| DIORIO CHRIS PH.D. CEO | Tax withheld | 1,197 | $177.20 | $212.11K | 0.3% | 356,265 | Sep 23, 2026 | — | Form 4 |
| DIORIO CHRIS PH.D. CEO | Option exercise | 1,224 | — | — | 0.3% | 355,645 | Sep 23, 2026 | — | Form 4 |
| DIORIO CHRIS PH.D. CEO | Option exercise | 1,817 | — | — | 0.5% | 357,462 | Sep 23, 2026 | — | Form 4 |
| Baker Cary CFO | Option exercise | 479 | — | — | 0.6% | 80,867 | Sep 23, 2026 | — | Form 4 |
| Baker Cary CFO | Option exercise | 596 | — | — | 0.7% | 81,463 | Sep 23, 2026 | — | Form 4 |
| Baker Cary CFO | Tax withheld | 424 | $177.20 | $75.13K | 0.5% | 81,039 | Sep 23, 2026 | — | Form 4 |
| Baker Cary CFO | Sell | 8,892 | $185.00 | $1.65M | 10.0% | 80,388 | Sep 21, 2026 | — | Form 4 |
| WASHINGTON MIRON Director | Sell | 800 | $173.26 | $138.61K | 15.5% | 4,354 | Sep 15, 2026 | — | Form 4 |
| DIORIO CHRIS PH.D. CEO | Gift | 10,000 | — | — | 2.7% | 354,421 | Sep 14, 2026 | — | Form 4 |
| Baker Cary CFO | Option exercise | 1,739 | — | — | 2.0% | 89,965 | Aug 20, 2026 | — | Form 4 |
| DIORIO CHRIS PH.D. CEO | Option exercise | 3,753 | — | — | 1.0% | 365,898 | Aug 20, 2026 | — | Form 4 |
| DIORIO CHRIS PH.D. CEO | Tax withheld | 1,477 | $159.73 | $235.92K | 0.4% | 364,421 | Aug 20, 2026 | — | Form 4 |
| Baker Cary CFO | Tax withheld | 685 | $159.73 | $109.42K | 0.8% | 89,280 | Aug 20, 2026 | — | Form 4 |
| DIORIO CHRIS PH.D. CEO | Gift | 10,000 | — | — | 2.7% | 362,145 | Aug 17, 2026 | — | Form 4 |
| Baker Cary CFO | Sell | 1,429 | $185.00 | $264.37K | 1.6% | 88,226 | Aug 10, 2026 | — | Form 4 |
| DIORIO CHRIS PH.D. CEO | Gift | 10,000 | — | — | 2.6% | 372,145 | Jul 13, 2026 | — | Form 4 |
| Baker Cary CFO | Option exercise | 479 | — | — | 0.5% | 89,482 | Jun 23, 2026 | — | Form 4 |
| Baker Cary CFO | Tax withheld | 424 | $125.22 | $53.09K | 0.5% | 89,655 | Jun 23, 2026 | — | Form 4 |
| DIORIO CHRIS PH.D. CEO | Tax withheld | 1,197 | $125.22 | $149.89K | 0.3% | 382,145 | Jun 23, 2026 | — | Form 4 |
| DIORIO CHRIS PH.D. CEO | Option exercise | 1,817 | — | — | 0.5% | 383,342 | Jun 23, 2026 | — | Form 4 |
| DIORIO CHRIS PH.D. CEO | Option exercise | 1,223 | — | — | 0.3% | 381,525 | Jun 23, 2026 | — | Form 4 |
| Baker Cary CFO | Option exercise | 597 | — | — | 0.7% | 90,079 | Jun 23, 2026 | — | Form 4 |
| DIORIO CHRIS PH.D. CEO | Gift | 10,000 | — | — | 2.6% | 380,302 | Jun 15, 2026 | — | Form 4 |
| SYLEBRA CAPITAL LLC Director | Sell | 12,105 | $127.36 | $1.54M | 1.5% | 782,943 | Jun 9, 2026 | — | Form 4 |
| SYLEBRA CAPITAL LLC Director | Sell | 33,000 | $130.07 | $4.29M | 4.0% | 795,048 | Jun 8, 2026 | — | Form 4 |
| SYLEBRA CAPITAL LLC Director | Sell | 12,528 | $125.97 | $1.58M | 1.5% | 828,048 | Jun 8, 2026 | — | Form 4 |
| SYLEBRA CAPITAL LLC Director | Sell | 35,877 | $122.50 | $4.39M | 4.1% | 840,576 | Jun 5, 2026 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Sell (S) — Open-market or private sale
- Tax withheld (F) — Shares withheld to pay tax or an exercise price
- Option exercise (M) — Exercise or conversion of an exempt derivative
- Gift (G) — Bona fide gift
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.