PI · Insider trading · 13F holders · Congress trades
Impinj Inc (PI)
Who is buying and selling PI: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 12
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $2.0M
- Congress trades, 12 months
- 4
PI at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 2 PI insiders filed 3 sales worth $2.0M on SEC Form 4, and no open-market purchases; 2 of the sales were pre-planned under Rule 10b5-1.
- 12 13F filers hold PI among their 50 largest positions, worth $278.5M combined, including Alex Sacerdote. The biggest bets by portfolio weight are Toronado Partners, LLC (15.1%), Broad Bay Capital Management, LP (4.5%) and Peregrine Investment Management Inc (4.3%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
- Members of Congress have disclosed 9 PI trades since 2019, 4 purchases and 0 sales in the past year; the latest was Marjorie Taylor Greene (R-GA), buying $1K–15K on May 14, 2025.
- PI last closed at $182.55 on Oct 29, 2026.
PI insider trading
Between Aug 1, 2026 and Oct 29, 2026, 2 PI insiders filed 3 sales worth $2.0M on SEC Form 4, and no open-market purchases; 2 of the sales were pre-planned under Rule 10b5-1.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Sep 21, 2026 | Baker Cary | CHIEF FINANCIAL OFFICER | Sale10b5-1 | 8,892 | $185.00 | $1.6M | SEC |
| Sep 16, 2026 | Washington Miron | Director | Sale | 800 | $173.26 | $139K | SEC |
| Aug 12, 2026 | Baker Cary | CHIEF FINANCIAL OFFICER | Sale10b5-1 | 1,429 | $185.00 | $264K | SEC |
Who owns PI? Hedge funds and superinvestors
12 13F filers hold PI among their 50 largest positions, worth $278.5M combined, including Alex Sacerdote. The biggest bets by portfolio weight are Toronado Partners, LLC (15.1%), Broad Bay Capital Management, LP (4.5%) and Peregrine Investment Management Inc (4.3%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
Superinvestors holding PI: Alex Sacerdote 0.5%
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Sylebra Capital LLCHedge fund | 11.8% | $111.1M | 775,943 | -31.5% shares | Q2 2026 |
| Alex SacerdoteHedge fund | 0.5% | $58.0M | 405,244 | +0.0% shares | Q2 2026 |
| Broad Bay Capital Management, LPInstitutional asset manager | 4.5% | $47.1M | 328,700 | New | Q2 2026 |
| AWM Investment Company, Inc.Hedge fund | 2.6% | $29.7M | 207,018 | +0.0% shares | Q2 2026 |
| Peregrine Investment Management IncAsset manager | 4.3% | $10.2M | 71,010 | +0.7% shares | Q2 2026 |
| Z3 Capital Partners, LLCWealth manager | 1.1% | $5.4M | 37,678 | +3.7% shares | Q2 2026 |
| Toronado Partners, LLCHedge fund | 15.1% | $5.4M | 37,455 | -46.7% shares | Q2 2026 |
| Ironwood Investment Management LLCWealth manager | 1.2% | $3.3M | 23,262 | +2.4% shares | Q2 2026 |
| Taylor Frigon Capital Management LLCHedge fund | 1.6% | $3.2M | 17,811 | -9.7% shares | Q3 2026 |
| Pachira Investments Inc.Wealth manager | 1.0% | $3.0M | 16,639 | -8.1% shares | Q3 2026 |
| Generali Investments Towarzystwo Funduszy InwestycyjnychAsset manager | 0.8% | $2.1M | 14,500 | +7.4% shares | Q2 2026 |
| Zeit Capital LLCWealth manager | 0.0% | $36K | 200 | +0.0% shares | Q3 2026 |
Each manager counts with its latest 13F (Q3 2026: 3, Q2 2026: 9). Screen PI in the grand portfolio →
PI stock trades by members of Congress
Members of Congress have disclosed 9 PI trades since 2019, 4 purchases and 0 sales in the past year; the latest was Marjorie Taylor Greene (R-GA), buying $1K–15K on May 14, 2025.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| May 19, 2025 | Marjorie Taylor GreeneR-GA · House | Buy | $1K–15K | May 14, 2025 | +43.5% |
| May 6, 2025 | Marjorie Taylor GreeneR-GA · House | Buy | $1K–15K | May 5, 2025 | +77.1% |
| Apr 7, 2025 | Marjorie Taylor GreeneR-GA · House | Buy | $1K–15K | Apr 4, 2025 | +138.8% |
| Mar 9, 2025 | Marjorie Taylor GreeneR-GA · House | Buy | $1K–15K | Mar 3, 2025 | +98.7% |
| Mar 3, 2022 | Donald S. Beyer, Jr.D-VA · House | Sale | $15K–50K | Feb 28, 2022 | +153.6% |
| Oct 30, 2021 | Donald S. Beyer, Jr.D-VA · House | Buy | $1K–15K | Oct 4, 2021 | +223.2% |
| Aug 9, 2020 | Donald S. Beyer, Jr.D-VA · House | Sale | $1K–15K | Jul 27, 2020 | +476.4% |
| Feb 22, 2020 | Donald S. Beyer, Jr.D-VA · House | Buy | $1K–15K | Jan 28, 2020 | +407.4% |
| Dec 14, 2019 | Donald S. Beyer, Jr.D-VA · House | Buy | $1K–15K | Nov 19, 2019 | +419.4% |
2 members have traded PI: Marjorie Taylor Greene, Donald S. Beyer, Jr..
PI questions and answers
Are insiders buying PI stock?
Between Aug 1, 2026 and Oct 29, 2026, 2 PI insiders filed 3 sales worth $2.0M on SEC Form 4, and no open-market purchases; 2 of the sales were pre-planned under Rule 10b5-1.
Which hedge funds own PI?
12 13F filers hold PI among their 50 largest positions, worth $278.5M combined, including Alex Sacerdote. The biggest bets by portfolio weight are Toronado Partners, LLC (15.1%), Broad Bay Capital Management, LP (4.5%) and Peregrine Investment Management Inc (4.3%). In their latest 13Fs, 1 manager opened a new position and 1 added to one.
Has Congress traded PI?
Members of Congress have disclosed 9 PI trades since 2019, 4 purchases and 0 sales in the past year; the latest was Marjorie Taylor Greene (R-GA), buying $1K–15K on May 14, 2025.
Who is the largest holder of PI?
Among 13F filers, Sylebra Capital LLC reports the largest PI position, $111.1M (775,943 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Toronado Partners, LLC's: 15.1% of its portfolio.
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