Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in PI held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 4.3M | $443.0M | +1.1% | 14.162% | 0.01% |
| 2 | FMR LLC | 4.3M | $439.6M | -4.9% | 14.053% | 0.02% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2.1M | $219.8M | — | 7.026% | 0.01% |
| 4 | STATE STREET CORP | 1.5M | $152.5M | +16.3% | 4.875% | 0.01% |
| 5 | Capital International Investors | 1.4M | $138.9M | -13.5% | 4.440% | 0.03% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 1.3M | $130.0M | — | 4.155% | 0.00% |
| 7 | SYLEBRA CAPITAL LLC | 1.1M | $116.3M | 0.0% | 3.717% | 15.03% |
| 8 | Capital World Investors | 1.0M | $104.3M | +34.7% | 3.336% | 0.01% |
| 9 | AMERIPRISE FINANCIAL INC | 858K | $88.1M | +2.1% | 2.818% | 0.02% |
| 10 | AMERICAN CENTURY COMPANIES INC | 818K | $84.0M | +20.4% | 2.686% | 0.04% |
| 11 | Alyeska Investment Group, L.P. | 735K | $75.5M | — | 2.412% | 0.21% |
| 12 | Chevy Chase Trust Holdings, Inc. | 728K | $74.8M | +6.8% | 2.391% | 0.22% |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 682K | $70.1M | +2.1% | 2.239% | 0.00% |
| 14 | UBS Group AG | 660K | $67.8M | +40.1% | 2.167% | 0.01% |
| 15 | UBS ASSET MANAGEMENT AMERICAS INC | 518K | $53.2M | +48.0% | 1.700% | 0.01% |
| 16 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | 426K | $43.7M | +2441.0% | 1.398% | 0.04% |
| 17 | Whale Rock Capital Management LLC | 405K | $41.6M | -54.3% | 1.331% | 0.54% |
| 18 | Point72 Asset Management, L.P. | 302K | $31.1M | — | 0.993% | 0.04% |
| 19 | Nuveen, LLC | 298K | $30.6M | +38.5% | 0.977% | 0.01% |
| 20 | NORTHERN TRUST CORP | 295K | $30.3M | +2.2% | 0.970% | 0.00% |
| 21 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 285K | $29.3M | +32.7% | 0.936% | 0.00% |
| 22 | GOLDMAN SACHS GROUP INC | 275K | $28.2M | -4.1% | 0.902% | 0.00% |
| 23 | MORGAN STANLEY | 271K | $27.9M | -0.1% | 0.891% | 0.00% |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 263K | $27.0M | -1.2% | 0.863% | 0.00% |
| 25 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 256K | $26.3M | +20.8% | 0.841% | 0.09% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in PI — a direct measure of their conviction.
Filings activity in PI during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 284 | 12% | 79.70% | 54.49 pp | $3.22B | 41% |
| Q4 2025 | 323 | +2.9% | 134.19% | 3.12 pp | $5.43B | 2.3% |
| Q3 2025 | 314 | +7.9% | 137.31% | +52.39 pp | $5.55B | +62% |
| Q2 2025 | 291 | +6.6% | 84.92% | +17.36 pp | $3.43B | +26% |
| Q1 2025 | 273 | 12% | 67.56% | 44.08 pp | $2.73B | 39% |
| Q4 2024 | 310 | 2.2% | 111.64% | 44.08 pp | $4.51B | 28% |
| Q3 2024 | 317 | +17% | 155.72% | +50.04 pp | $6.30B | +47% |
| Q2 2024 | 270 | — | 105.68% | — | $4.27B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying PI stock.
Based on Q1 2026 13F filings, institutional ownership of Impinj, Inc. stands at 79.7%, held across 284 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of PI, with approximately 4,313,504 shares worth $0.44B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of PI, including Point72 Asset Management, L.P., SUSQUEHANNA INTERNATIONAL GROUP, LLP.
Our composite Smart Money Score for PI is 33 out of 100 (Bearish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
50 institutions opened new positions in PI during Q1 2026, while 89 fully exited. 42 added to existing positions and 192 trimmed.
PI institutional ownership fell by 54.49 percentage points quarter-over-quarter, with a net change of -39 holders.
The top 10 institutions account for 59.5% of all reported 13F value in PI, and the top 25 account for 79.9%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Impinj, Inc. (PI) Institutional Ownership