Impinj Inc: which funds bought and sold
Institutions that bought and sold Impinj shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 178 institutions that filed 13F reports for both quarters added to or opened positions in Impinj, and 121 cut or closed them. Together they added a net 701K shares, +2.2% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 598K shares (+5.2%); index fund managers were net buyers of 514K shares (+4.8%). 58 opened a new position and 36 sold out entirely.
Bought, Q2 2026 178 institutions, 58 of them new holders Sold, Q2 2026 121 institutions, 36 of them sold out
Net change, all compared +701K shares (+2.2%)
Net change, active managers +598K shares (+5.2%), 26 bought, 22 sold
Buyers versus sellers
178 bought 45 121 sold
Active managers and hedge funds 26 bought · 22 sold · +598K
Index fund managers 9 bought · 2 sold · +514K
Other institutions 143 bought · 97 sold · −411K
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Millennium Management LLC Hedge fund | +732K +715.9% | 834K | $120M |
| Broad Bay Capital Management, LP | +329K New position | 329K | $47.1M |
| FMR LLC Active manager | +282K +6.6% | 4.6M | $654M |
| Westfield Capital Management Co LP Active manager | +271K New position | 271K | $38.8M |
| Manufacturers Life Insurance Company, The | +243K +57.1% | 669K | $95.9M |
| State Street Corp Index funds | +216K +14.5% | 1.7M | $244M |
| Blackrock, Inc. Index funds | +136K +3.2% | 4.4M | $637M |
| Point72 Asset Management, L.P. Hedge fund | +119K +41.2% | 408K | $58.5M |
| Goldman Sachs Group Inc | +114K +41.5% | 389K | $55.7M |
| Capital World Investors Active manager | +108K +10.6% | 1.1M | $161M |
| Capital International Investors Active manager | +91K +6.7% | 1.4M | $207M |
| Morgan Stanley | +89K +32.8% | 361K | $51.6M |
| Captrust Financial Advisors | +73K +502.4% | 87K | $12.5M |
| Squarepoint Ops LLC Hedge fund | +66K +128.4% | 117K | $16.7M |
| Summit Partners Public Asset Management, LLC | +62K New position | 62K | $8.8M |
| Exoduspoint Capital Management, LP Hedge fund | +57K +182.3% | 89K | $12.7M |
| Citadel Advisors LLC Hedge fund | +56K +964.8% | 62K | $8.9M |
| Riverbridge Partners LLC Active manager | +56K New position | 56K | $8M |
| Vanguard Portfolio Management LLC Index funds | +54K +2.5% | 2.2M | $314M |
| Geode Capital Management, LLC Index funds | +52K +7.6% | 734K | $105M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Millennium Management LLC Hedge fund | +732K +715.9% | 834K | $120M |
| FMR LLC Active manager | +282K +6.6% | 4.6M | $654M |
| Westfield Capital Management Co LP Active manager | +271K New position | 271K | $38.8M |
| Point72 Asset Management, L.P. Hedge fund | +119K +41.2% | 408K | $58.5M |
| Capital World Investors Active manager | +108K +10.6% | 1.1M | $161M |
| Capital International Investors Active manager | +91K +6.7% | 1.4M | $207M |
| Squarepoint Ops LLC Hedge fund | +66K +128.4% | 117K | $16.7M |
| Exoduspoint Capital Management, LP Hedge fund | +57K +182.3% | 89K | $12.7M |
| Citadel Advisors LLC Hedge fund | +56K +964.8% | 62K | $8.9M |
| Riverbridge Partners LLC Active manager | +56K New position | 56K | $8M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Alyeska Investment Group, L.P. Hedge fund | −735K Sold out | 0 | — |
| UBS Am, A Distinct Business Unit Of UBS Asset Management Americas LLC | −413K −79.8% | 105K | $15M |
| Sylebra Capital LLC | −356K −31.5% | 776K | $111M |
| Ameriprise Financial Inc | −327K −38.1% | 531K | $76M |
| Polar Asset Management Partners Inc. | −137K Sold out | 0 | — |
| Oberweis Asset Management Inc/ Active manager | −118K Sold out | 0 | — |
| T. Rowe Price Investment Management, Inc. Active manager | −107K −35.7% | 193K | $27.6M |
| Wellington Management Group LLP Active manager | −105K Sold out | 0 | — |
| UBS Group AG | −104K −20.0% | 414K | $59.4M |
| Fiera Capital Corp | −87K −42.9% | 116K | $16.6M |
| Susquehanna International Group, LLP | −86K −89.9% | 9,694 | $1.4M |
| Neuberger Berman Group LLC Active manager | −67K −96.0% | 2,819 | $403,765 |
| Marshall Wace, LLP Hedge fund | −61K Sold out | 0 | — |
| Alliancebernstein L.P. Active manager | −61K −62.9% | 36K | $3.7M |
| Fred Alger Management, LLC Active manager | −55K −25.6% | 160K | $22.9M |
| Nordea Investment Management AB | −38K Sold out | 0 | — |
| Cinctive Capital Management LP Hedge fund | −35K −80.4% | 8,491 | $1.2M |
| Toronado Partners, LLC | −33K −46.7% | 37K | $5.4M |
| Allspring Global Investments Holdings, LLC | −25K −13.5% | 157K | $22.6M |
| SG Americas Securities, LLC | −20K −77.2% | 5,862 | $840,000 |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Alyeska Investment Group, L.P. Hedge fund | −735K Sold out | 0 | — |
| Oberweis Asset Management Inc/ Active manager | −118K Sold out | 0 | — |
| T. Rowe Price Investment Management, Inc. Active manager | −107K −35.7% | 193K | $27.6M |
| Wellington Management Group LLP Active manager | −105K Sold out | 0 | — |
| Neuberger Berman Group LLC Active manager | −67K −96.0% | 2,819 | $403,765 |
| Marshall Wace, LLP Hedge fund | −61K Sold out | 0 | — |
| Alliancebernstein L.P. Active manager | −61K −62.9% | 36K | $3.7M |
| Fred Alger Management, LLC Active manager | −55K −25.6% | 160K | $22.9M |
| Cinctive Capital Management LP Hedge fund | −35K −80.4% | 8,491 | $1.2M |
| Baillie Gifford & Co Active manager | −18K −10.4% | 156K | $22.3M |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Broad Bay Capital Management, LP | 329K | $47.1M |
| Westfield Capital Management Co LPActive manager | 271K | $38.8M |
| Summit Partners Public Asset Management, LLC | 62K | $8.8M |
| Riverbridge Partners LLCActive manager | 56K | $8M |
| Polymer Capital Management (HK) Ltd | 19K | $2.7M |
| Algert Global LLCHedge fund | 13K | $1.8M |
| Assenagon Asset Management S.A. | 12K | $1.8M |
| Boothbay Fund Management, LLCHedge fund | 11K | $1.6M |
| Formula Growth Ltd | 9,500 | $1.4M |
| LMR Partners LLPHedge fund | 6,728 | $963,651 |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Alyeska Investment Group, L.P.Hedge fund | 735K | $75.5M |
| Polar Asset Management Partners Inc. | 137K | $14M |
| Oberweis Asset Management Inc/Active manager | 118K | $12.1M |
| Wellington Management Group LLPActive manager | 105K | $10.8M |
| Marshall Wace, LLPHedge fund | 61K | $6.3M |
| Nordea Investment Management AB | 38K | $3.6M |
| Congress Asset Management CoActive manager | 18K | $1.8M |
| Inspire Advisors, LLC | 16K | $1.6M |
| Natixis | 6,800 | $698,360 |
| Niles Investment Management, LLC | 6,788 | $697,128 |
Who holds the shares
- Institutions reporting
- 314
- Ten largest holders
- 58.4% of 13F-reported shares
- Index fund managers
- 34.2% of 13F-reported shares
- Active managers and hedge funds
- 36.7% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 26 | 22 | 7 | 5 | +598K | +5.2% |
| Index fund managers | 9 | 2 | 0 | 0 | +514K | +4.8% |
| Other institutions | 143 | 97 | 51 | 31 | −411K | −4.3% |