ATMU
Atmus Filtration Technologies Inc. · Consumer Cyclical · Auto - Parts
Momentum inputs (comparable managers): holder breadth 0.0% · share flow -6.1% · net new positions 0.0% — formula
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 104 | -4 | 63.87M | $3.26B | +7 | −10 |
| Q1 2026 | 110 | +5 | 59.84M | $3.40B | +8 | −4 |
| Q4 2025 | 105 | 0 | 60.18M | $3.12B | +1 | — |
| Q3 2025 | 19 | 0 | 38.08M | $1.72B | — | — |
| Q2 2025 | 16 | -1 | 31.86M | $1.16B | — | −1 |
| Q1 2025 | 14 | 0 | 13.32M | $489.30M | — | — |
| Q4 2024 | 14 | -1 | 14.18M | $555.78M | — | −1 |
| Q3 2024 | 14 | +1 | 11.88M | $445.74M | +1 | — |
| Q2 2024 | 13 | — | 10.01M | $288.06M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Wellington Management ✦ | 2.43M | +24.5% | $89.09M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 2 | Wellington Management ✦ | 2.43M | +24.5% | $89.09M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 3 | Wellington Management ✦ | 2.43M | +24.5% | $89.09M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | Wellington Management ✦ | 2.43M | +24.5% | $89.09M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | Wellington Management ✦ | 2.43M | +24.5% | $89.09M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 6 | T. Rowe Price ✦ | 2.12M | -50.2% | $77.99M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 7 | T. Rowe Price ✦ | 2.12M | -50.2% | $77.99M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 8 | D. E. Shaw & Co. ✦ | 2.08M | +8.7% | $76.31M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 9 | D. E. Shaw & Co. ✦ | 2.08M | +8.7% | $76.31M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 10 | Geode Capital Management ✦ (passive) | 1.96M | +3.4% | $71.93M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | Geode Capital Management ✦ (passive) | 1.96M | +3.4% | $71.93M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 12 | State Street Global Advisors ✦ (passive) | 1.94M | -3.0% | $71.23M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 13 | Citadel Advisors ✦ | 1.20M | +635.8% | $44.18M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 14 | Citadel Advisors ✦ | 1.20M | +635.8% | $44.18M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 15 | Renaissance Technologies ✦ | 415.10K | -24.3% | $15.25M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 16 | Marshall Wace ✦ | 308.75K | +255.2% | $11.34M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 17 | Millennium Management ✦ | 219.64K | +17.5% | $8.07M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 18 | Arrowstreet Capital ✦ | 177.17K | -47.4% | $6.51M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 19 | Two Sigma Investments ✦ | 164.31K | -40.0% | $6.03M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 20 | Norges Bank ✦ (passive) | 144.00K | -36.2% | $5.29M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 21 | Tweedy, Browne ✦ | 89.59K | -32.0% | $3.29M | 0.3% | ▼ Trim | 4 | SEC ↗ |
| 22 | AQR Capital Management ✦ | 75.83K | -65.0% | $2.79M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 23 | AQR Capital Management ✦ | 75.83K | -65.0% | $2.79M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 24 | AQR Capital Management ✦ | 75.83K | -65.0% | $2.79M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 25 | AQR Capital Management ✦ | 75.83K | -65.0% | $2.79M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 26 | AQR Capital Management ✦ | 75.83K | -65.0% | $2.79M | 0.0% | ▼ Trim | 4 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 349 holders, 83.15M shares, $4.30B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
Director · 2.00K sh @ 49.78 · $99,551
Open-market sales (S)
Officer · 3.87K sh · $196,956
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology