Atmus Filtration Technologies Inc.: which funds bought and sold
Institutions that bought and sold Atmus Filtration Technologies 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, 169 institutions that filed 13F reports for both quarters added to or opened positions in Atmus Filtration Technologies, and 174 cut or closed them. Together they added a net 4.0M shares, +4.8% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 2.7M shares (−9.2%); index fund managers were net buyers of 8.4M shares (+40.0%). 52 opened a new position and 69 sold out entirely.
Bought, Q2 2026 169 institutions, 52 of them new holders Sold, Q2 2026 174 institutions, 69 of them sold out
Net change, all compared +4.0M shares (+4.8%)
Net change, active managers −2.7M shares (−9.2%), 20 bought, 44 sold
Buyers versus sellers
169 bought 49 174 sold
Active managers and hedge funds 20 bought · 44 sold · −2.7M
Index fund managers 10 bought · 1 sold · +8.4M
Other institutions 139 bought · 129 sold · −1.7M
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Blackrock, Inc. Index funds | +5.6M +81.9% | 12.4M | $632M |
| State Street Corp Index funds | +1.4M +71.8% | 3.3M | $166M |
| Neuberger Berman Group LLC Active manager | +1.2M +106.2% | 2.4M | $123M |
| Invesco Ltd. | +1.1M +33.3% | 4.5M | $227M |
| Vanguard Portfolio Management LLC Index funds | +915K +24.8% | 4.6M | $235M |
| Boston Partners Active manager | +495K New position | 495K | $25.3M |
| Marshall Wace, LLP Hedge fund | +484K +149.9% | 806K | $41.1M |
| Frontier Capital Management Co LLC Active manager | +416K +56.0% | 1.2M | $59M |
| Principal Financial Group Inc | +400K +486.3% | 482K | $24.6M |
| FMR LLC Active manager | +379K +7.7% | 5.3M | $271M |
| Channing Capital Management, LLC | +340K +24.5% | 1.7M | $88M |
| Public Sector Pension Investment Board | +327K New position | 327K | $16.7M |
| Woodline Partners LP Hedge fund | +252K +70.7% | 607K | $31M |
| Geode Capital Management, LLC Index funds | +223K +8.4% | 2.9M | $146M |
| Bank Of New York Mellon Corp | +219K +60.9% | 579K | $29.5M |
| Royce & Associates LP Active manager | +218K +28.0% | 995K | $50.7M |
| T. Rowe Price Investment Management, Inc. Active manager | +204K +12.9% | 1.8M | $91M |
| Westwood Holdings Group Inc Active manager | +158K +12.7% | 1.4M | $71.2M |
| Dimensional Fund Advisors LP | +158K +12.1% | 1.5M | $74.5M |
| Aberdeen Group PLC | +149K +39.9% | 522K | $26.6M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Neuberger Berman Group LLC Active manager | +1.2M +106.2% | 2.4M | $123M |
| Boston Partners Active manager | +495K New position | 495K | $25.3M |
| Marshall Wace, LLP Hedge fund | +484K +149.9% | 806K | $41.1M |
| Frontier Capital Management Co LLC Active manager | +416K +56.0% | 1.2M | $59M |
| FMR LLC Active manager | +379K +7.7% | 5.3M | $271M |
| Woodline Partners LP Hedge fund | +252K +70.7% | 607K | $31M |
| Royce & Associates LP Active manager | +218K +28.0% | 995K | $50.7M |
| T. Rowe Price Investment Management, Inc. Active manager | +204K +12.9% | 1.8M | $91M |
| Westwood Holdings Group Inc Active manager | +158K +12.7% | 1.4M | $71.2M |
| Victory Capital Management Inc Active manager | +96K +34.0% | 378K | $19.3M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Eminence Capital, LP Hedge fund | −1.3M Sold out | 0 | — |
| D. E. Shaw & Co., Inc. Hedge fund | −1.1M −70.3% | 482K | $24.6M |
| Parsifal Capital Management, LP | −789K Sold out | 0 | — |
| Qube Research & Technologies Ltd Hedge fund | −741K Sold out | 0 | — |
| First Trust Advisors LP | −616K −28.0% | 1.6M | $80.9M |
| Arrowstreet Capital, Limited Partnership Hedge fund | −616K −61.6% | 384K | $19.6M |
| Algert Global LLC Hedge fund | −515K Sold out | 0 | — |
| Nuveen, LLC | −514K −35.6% | 931K | $47.4M |
| Jane Street Group, LLC | −416K −97.6% | 10K | $527,543 |
| Massachusetts Financial Services Co Active manager | −415K −50.7% | 403K | $20.6M |
| Bank Of America Corp | −409K −45.8% | 485K | $24.7M |
| Goldman Sachs Group Inc | −387K −11.8% | 2.9M | $148M |
| Susquehanna International Group, LLP | −306K −90.1% | 34K | $1.7M |
| Barclays PLC | −295K −95.5% | 14K | $708,965 |
| Schonfeld Strategic Advisors LLC Hedge fund | −287K Sold out | 0 | — |
| Kennedy Capital Management LLC Active manager | −238K −86.4% | 38K | $1.9M |
| Deutsche Bank Ag\ | −193K −68.1% | 91K | $4.6M |
| Healthcare Of Ontario Pension Plan Trust Fund | −192K −42.2% | 263K | $13.4M |
| Assenagon Asset Management S.A. | −182K Sold out | 0 | — |
| Voloridge Investment Management, LLC Hedge fund | −168K Sold out | 0 | — |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Eminence Capital, LP Hedge fund | −1.3M Sold out | 0 | — |
| D. E. Shaw & Co., Inc. Hedge fund | −1.1M −70.3% | 482K | $24.6M |
| Qube Research & Technologies Ltd Hedge fund | −741K Sold out | 0 | — |
| Arrowstreet Capital, Limited Partnership Hedge fund | −616K −61.6% | 384K | $19.6M |
| Algert Global LLC Hedge fund | −515K Sold out | 0 | — |
| Massachusetts Financial Services Co Active manager | −415K −50.7% | 403K | $20.6M |
| Schonfeld Strategic Advisors LLC Hedge fund | −287K Sold out | 0 | — |
| Kennedy Capital Management LLC Active manager | −238K −86.4% | 38K | $1.9M |
| Voloridge Investment Management, LLC Hedge fund | −168K Sold out | 0 | — |
| Citadel Advisors LLC Hedge fund | −143K −62.1% | 87K | $4.5M |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Boston PartnersActive manager | 495K | $25.3M |
| Public Sector Pension Investment Board | 327K | $16.7M |
| Verition Fund Management LLCHedge fund | 75K | $3.8M |
| Illinois Municipal Retirement Fund | 42K | $2.2M |
| Louisiana State Employees Retirement System | 36K | $1.8M |
| Twinbeech Capital LP | 33K | $1.7M |
| Freestone Grove Partners LPHedge fund | 32K | $1.7M |
| State Of Tennessee, Department Of Treasury | 27K | $1.4M |
| Yousif Capital Management, LLC | 22K | $1.1M |
| Amalgamated Bank | 22K | $1.1M |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Eminence Capital, LPHedge fund | 1.3M | $72.8M |
| Parsifal Capital Management, LP | 789K | $44.8M |
| Qube Research & Technologies LtdHedge fund | 741K | $42.1M |
| Algert Global LLCHedge fund | 515K | $29.2M |
| Schonfeld Strategic Advisors LLCHedge fund | 287K | $16.3M |
| Assenagon Asset Management S.A. | 182K | $10.3M |
| Voloridge Investment Management, LLCHedge fund | 168K | $9.5M |
| Castleark Management LLC | 119K | $6.8M |
| Millennium Management LLCHedge fund | 119K | $6.7M |
| Dark Forest Capital Management LP | 116K | $6.6M |
Who holds the shares
- Institutions reporting
- 331
- Ten largest holders
- 52.8% of 13F-reported shares
- Index fund managers
- 33.5% of 13F-reported shares
- Active managers and hedge funds
- 30.1% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 20 | 44 | 4 | 16 | −2.7M | −9.2% |
| Index fund managers | 10 | 1 | 0 | 0 | +8.4M | +40.0% |
| Other institutions | 139 | 129 | 48 | 53 | −1.7M | −5.5% |
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