ATMU
Atmus Filtration Technologies Inc. · Consumer Cyclical · Auto - Parts
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 103 | -4 | 63.86M | $3.26B | +7 | −11 |
| Q1 2026 | 110 | +5 | 59.84M | $3.40B | +8 | −4 |
| Q4 2025 | 105 | 0 | 60.18M | $3.12B | +1 | n/a |
| Q3 2025 | 19 | 0 | 38.08M | $1.72B | n/a | n/a |
| Q2 2025 | 16 | -1 | 31.86M | $1.16B | n/a | −1 |
| Q1 2025 | 14 | 0 | 13.32M | $489.30M | n/a | n/a |
| Q4 2024 | 14 | -1 | 14.18M | $555.78M | n/a | −1 |
| Q3 2024 | 14 | +1 | 11.88M | $445.74M | +1 | n/a |
| Q2 2024 | 13 | n/a | 10.01M | $288.06M | n/a | n/a |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Wellington Management ✦ | 2.47M | n/a | $71.21M | 0.0% | n/c | 1 | SEC ↗ ×6 |
| 2 | T. Rowe Price ✦ | 2.15M | n/a | $61.90M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 3 | Geode Capital Management ✦ (passive) | 1.86M | n/a | $53.40M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 4 | Two Sigma Investments ✦ | 891.84K | n/a | $25.67M | 0.1% | n/c | 1 | SEC ↗ |
| 5 | D. E. Shaw & Co. ✦ | 884.46K | n/a | $25.45M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 6 | Renaissance Technologies ✦ | 616.50K | n/a | $17.74M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | Millennium Management ✦ | 278.00K | n/a | $8.00M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | Point72 Asset Management ✦ | 218.71K | n/a | $6.29M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | Citadel Advisors ✦ | 177.09K | n/a | $5.10M | 0.0% | n/c | 1 | SEC ↗ ×2 |
| 10 | Norges Bank ✦ (passive) | 165.10K | n/a | $4.75M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | Marshall Wace ✦ | 155.47K | n/a | $4.47M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | Tweedy, Browne ✦ | 132.19K | n/a | $3.80M | 0.2% | n/c | 1 | SEC ↗ |
| 13 | AQR Capital Management ✦ | 9.25K | n/a | $266,244 | 0.0% | n/c | 1 | SEC ↗ ×3 |
“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