IMPINJ INC (PI) Institutional Ownership Changes & 13F Activity
IMPINJ INC (PI). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Millennium Management Llc, Ameriprise Financial Inc, Sylebra Capital Llc, Broad Bay Capital Management, Lp, and Manufacturers Life Insurance Company, The.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Envestnet Asset Management Inc | Buy | +420 | +1.0% | 42,303 | $6.06M | Q2 2026 | Sep 23, 2026 |
| State Street Corp | Buy | +215,717 | +14.5% | 1,700,585 | $243.57M | Q2 2026 | Sep 22, 2026 |
| Manufacturers Life Insurance Company, The | Buy | +243,379 | +57.1% | 669,324 | $95.87M | Q2 2026 | Sep 09, 2026 |
| Citadel Advisors Llc | Buy | +56,257 | +964.8% | 62,088 | $8.89M | Q2 2026 | Sep 02, 2026 |
| Corient Private Wealth Llc | Buy | +276 | +7.7% | 3,868 | $554.00K | Q2 2026 | Aug 27, 2026 |
| California State Teachers Retirement System | Buy | +436 | +1.3% | 34,338 | $4.92M | Q2 2026 | Aug 24, 2026 |
| Assenagon Asset Management S.A. | Buy | +6,138 | — | 6,138 | $879.15K | Q2 2026 | Aug 21, 2026 |
| Mercer Global Advisors Inc | Buy | +104 | +3.3% | 3,226 | $462.06K | Q2 2026 | Aug 19, 2026 |
| Formula Growth Ltd | Buy | +9,500 | — | 9,500 | $1.36M | Q2 2026 | Aug 17, 2026 |
| Millennium Management Llc | Buy | +732,108 | +715.9% | 834,376 | $119.51M | Q2 2026 | Aug 14, 2026 |
| Ameriprise Financial Inc | Buy | +530,926 | — | 530,926 | $76.04M | Q2 2026 | Aug 14, 2026 |
| Sylebra Capital Llc | Sell | -356,209 | -31.5% | 775,943 | $111.14M | Q2 2026 | Aug 14, 2026 |
| Broad Bay Capital Management, Lp | Buy | +328,700 | — | 328,700 | $47.08M | Q2 2026 | Aug 14, 2026 |
| Point72 Asset Management, L.P. | Buy | +119,202 | +41.2% | 408,333 | $58.49M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Buy | +114,063 | +41.5% | 388,783 | $55.69M | Q2 2026 | Aug 14, 2026 |
| T. Rowe Price Investment Management, Inc. | Sell | -107,132 | -35.7% | 192,948 | $27.64M | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | Buy | +92,996 | — | 92,996 | $13.32M | Q2 2026 | Aug 14, 2026 |
| Susquehanna International Group, Llp | Sell | -85,849 | -89.9% | 9,694 | $1.39M | Q2 2026 | Aug 14, 2026 |
| Squarepoint Ops Llc | Buy | +65,698 | +128.4% | 116,850 | $16.74M | Q2 2026 | Aug 14, 2026 |
| Summit Partners Public Asset Management, Llc | Buy | +61,500 | — | 61,500 | $8.81M | Q2 2026 | Aug 14, 2026 |
| Alliancebernstein L.P. | Sell | -60,930 | -62.9% | 35,954 | $3.69M | Q2 2026 | Aug 14, 2026 |
| Weiss Asset Management Lp | Buy | +57,722 | — | 57,722 | $8.27M | Q2 2026 | Aug 14, 2026 |
| Exoduspoint Capital Management, Lp | Buy | +57,452 | +182.3% | 88,962 | $12.74M | Q2 2026 | Aug 14, 2026 |
| Fred Alger Management, Llc | Sell | -55,050 | -25.6% | 159,966 | $22.91M | Q2 2026 | Aug 14, 2026 |
| Price T Rowe Associates Inc | Buy | +51,330 | +16.8% | 357,059 | $51.14M | Q2 2026 | Aug 14, 2026 |
| Wells Fargo & Company/Mn | Buy | +38,295 | +129.5% | 67,876 | $9.72M | Q2 2026 | Aug 14, 2026 |
| Cinctive Capital Management Lp | Sell | -34,745 | -80.4% | 8,491 | $1.22M | Q2 2026 | Aug 14, 2026 |
| Susquehanna Fundamental Investments, Llc | Buy | +30,270 | +252.6% | 42,253 | $6.05M | Q2 2026 | Aug 14, 2026 |
| Polar Capital Holdings Plc | Buy | +27,907 | +286.5% | 37,648 | $5.39M | Q2 2026 | Aug 14, 2026 |
| Man Group Plc | Sell | -17,695 | -26.6% | 48,836 | $6.99M | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about PI activity
Which institutional owners are buying PI?
Institutional owners buying PI include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in PI activity?
"Buy" means an investor increased their reported position in PI compared to the prior reporting period. This reflects growing exposure to IMPINJ INC (PI) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in PI increasing?
Institutional interest in PI can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
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