PI insider buying and SEC filings, explained
Impinj Inc. · CIK 1114995
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$153.8M
Planned sales (10b5-1)
$2.3M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 29, 2026 | Planned (10b5-1) | Meera Rao (Director) sold 1,729 shares at $201.60 ($349K), marked as a 10b5-1 plan trade. Holdings down 15% to 9,593 shares. | SEC filing Filed Oct 30, 2026, 5:08 PM ET |
| Sep 21, 2026 | Planned (10b5-1) | Cary Baker (CFO) sold 8,892 shares at $185.00 ($1.6M), marked as a 10b5-1 plan trade. Holdings down 10% to 80,388 shares. | SEC filing Filed Sep 21, 2026 |
| Sep 15, 2026 | Sale | Miron Washington (Director) sold 800 shares at $173.26 ($139K). Holdings down 16% to 4,354 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 16, 2026 |
| Aug 10, 2026 | Planned (10b5-1) | Cary Baker (CFO) sold 1,429 shares at $185.00 ($264K), marked as a 10b5-1 plan trade. Holdings down 2% to 88,226 shares. | SEC filing Filed Aug 12, 2026 |
| Jun 8–9, 2026 | Sale Amended filing | SYLEBRA CAPITAL LLC (Director) sold 64,633 shares indirectly between Jun 8 and Jun 9 at about $128.47 ($8.3M). Indirect holdings down 8% to 775,943 shares. Not marked as a 10b5-1 plan trade. This amends a filing from Jun 10. | SEC filing Filed Jun 10, 2026 |
| Jun 5, 2026 | Sale | SYLEBRA CAPITAL LLC (Director) sold 47,479 shares indirectly at about $124.06 ($5.9M). Indirect holdings down 5% to 840,576 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 9, 2026 |
| Jun 4, 2026 | Sale | SYLEBRA CAPITAL LLC (Director) sold 33,412 shares indirectly at $136.84 ($4.6M). Indirect holdings down 4% to 888,055 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 8, 2026 |
| Jun 2–3, 2026 | Sale | SYLEBRA CAPITAL LLC (Director) sold 45,037 shares indirectly between Jun 2 and Jun 3 at about $141.87 ($6.4M). Indirect holdings down 5% to 921,467 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 4, 2026 |
| May 29–Jun 1, 2026 | Sale | SYLEBRA CAPITAL LLC (Director) sold 55,667 shares indirectly between May 29 and Jun 1 at about $149.94 ($8.3M). Indirect holdings down 5% to 966,504 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 2, 2026 |
| May 8–11, 2026 | Sale Amended filing | SYLEBRA CAPITAL LLC (Director) sold 73,810 shares indirectly between May 8 and May 11 at about $153.21 ($11.3M). Indirect holdings down 7% to 1,022,171 shares. Not marked as a 10b5-1 plan trade. This amends an earlier filing that is not in our records. | SEC filing Filed May 12, 2026 |
| May 8, 2026 | Sale | SYLEBRA CAPITAL LLC (Director) sold 25,896 shares indirectly at $152.73 ($4.0M). Indirect holdings down 2% to 1,070,085 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 12, 2026 |
| May 7, 2026 | Sale Amended filing | SYLEBRA CAPITAL LLC (Director) sold 36,171 shares indirectly at $152.73 ($5.5M). Indirect holdings down 3% to 1,095,981 shares. Not marked as a 10b5-1 plan trade. This amends a filing from May 11. | SEC filing Filed May 11, 2026 |
| Dec 11–15, 2025 | Sale | SYLEBRA CAPITAL LLC (Chief Investment Officer) sold 280,547 shares indirectly between Dec 11, 2025 and Dec 15, 2025 at about $150.54 ($42.2M). Indirect holdings down 20% to 1,132,152 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 1 other reporting owner. | SEC filing Filed Dec 15, 2025 |
| Dec 8–10, 2025 | Sale | SYLEBRA CAPITAL LLC (Chief Investment Officer) sold 87,138 shares indirectly between Dec 8, 2025 and Dec 10, 2025 at about $155.64 ($13.6M). Indirect holdings down 6% to 1,412,699 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 1 other reporting owner. | SEC filing Filed Dec 10, 2025 |
| Dec 3–5, 2025 | Sale | SYLEBRA CAPITAL LLC (Chief Investment Officer) sold 45,761 shares indirectly between Dec 3, 2025 and Dec 5, 2025 at about $167.25 ($7.7M). Indirect holdings down 3% to 1,499,837 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 1 other reporting owner. | SEC filing Filed Dec 5, 2025 |
| Dec 1–2, 2025 | Sale | SYLEBRA CAPITAL LLC (Chief Investment Officer) sold 72,932 shares indirectly between Dec 1, 2025 and Dec 2, 2025 at about $167.71 ($12.2M). Indirect holdings down 5% to 1,545,598 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 1 other reporting owner. | SEC filing Filed Dec 3, 2025 |
| Nov 26–28, 2025 | Sale | SYLEBRA CAPITAL LLC (Chief Investment Officer) sold 56,853 shares indirectly between Nov 26, 2025 and Nov 28, 2025 at about $172.12 ($9.8M). Indirect holdings down 3% to 1,618,530 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 1 other reporting owner. | SEC filing Filed Dec 1, 2025 |
| Nov 24–25, 2025 | Sale | SYLEBRA CAPITAL LLC (Chief Investment Officer) sold 78,062 shares indirectly between Nov 24, 2025 and Nov 25, 2025 at about $164.33 ($12.8M). Indirect holdings down 4% to 1,675,383 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 1 other reporting owner. | SEC filing Filed Nov 26, 2025 |
| Nov 20–21, 2025 | Sale | SYLEBRA CAPITAL LLC (Chief Investment Officer) sold 11,127 shares indirectly between Nov 20, 2025 and Nov 21, 2025 at about $155.99 ($1.7M). Indirect holdings down 1% to 1,753,445 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 1 other reporting owner. | SEC filing Filed Nov 24, 2025 |
| Nov 12, 2025 | Sale | SYLEBRA CAPITAL LLC (Chief Investment Officer) sold 3,772 shares indirectly at $156.30 ($590K). Indirect holdings down <1% to 1,764,572 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 1 other reporting owner. | SEC filing Filed Nov 14, 2025 |
| Nov 11, 2025 | Sale | SYLEBRA CAPITAL LLC (Chief Investment Officer) sold 30,000 shares indirectly at $155.63 ($4.7M). Indirect holdings down 2% to 1,768,344 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 1 other reporting owner. | SEC filing Filed Nov 13, 2025 |
| Nov 7, 2025 | Sale | SYLEBRA CAPITAL LLC (Chief Investment Officer) sold 6,246 shares indirectly at $162.16 ($1.0M). Indirect holdings down <1% to 1,798,344 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 1 other reporting owner. | SEC filing Filed Nov 12, 2025 |
| Nov 6, 2025 | Sale | SYLEBRA CAPITAL LLC (Chief Investment Officer) sold 23,157 shares indirectly at $171.95 ($4.0M). Indirect holdings down 1% to 1,804,590 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 1 other reporting owner. | SEC filing Filed Nov 10, 2025 |
| Nov 7, 2025 | Sale | Miron Washington (Director) sold 342 shares at $158.94 ($54K). Holdings down 14% to 2,040 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 7, 2025 |
| Nov 3, 2025 | Sale | SYLEBRA CAPITAL LLC (Chief Investment Officer) sold 1,513 shares indirectly at $202.01 ($306K). Indirect holdings down <1% to 1,827,747 shares. Not marked as a 10b5-1 plan trade. Filed jointly with 1 other reporting owner. | SEC filing Filed Nov 5, 2025 |
29 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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