ATMU
Atmus Filtration Technologies Inc. · Consumer Cyclical · Auto - Parts
Momentum inputs (comparable managers):
holder breadth +7.7% ·
share flow +18.7% ·
net new positions +7.1%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| 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 | T. Rowe Price ✦ | 4.04M | +87.8% | $151.57M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 2 | T. Rowe Price ✦ | 4.04M | +87.8% | $151.57M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | Wellington Management ✦ | 2.52M | +1.7% | $94.48M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | Wellington Management ✦ | 2.52M | +1.7% | $94.48M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | Wellington Management ✦ | 2.52M | +1.7% | $94.48M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 6 | Wellington Management ✦ | 2.52M | +1.7% | $94.48M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | Geode Capital Management ✦ (passive) | 1.89M | +2.1% | $71.12M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | Geode Capital Management ✦ (passive) | 1.89M | +2.1% | $71.12M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 9 | D. E. Shaw & Co. ✦ | 1.33M | +50.0% | $49.80M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 10 | D. E. Shaw & Co. ✦ | 1.33M | +50.0% | $49.80M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 11 | Renaissance Technologies ✦ | 542.90K | -11.9% | $20.38M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 12 | Two Sigma Investments ✦ | 451.60K | -49.4% | $16.95M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 13 | Citadel Advisors ✦ | 262.09K | +48.0% | $9.84M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 14 | Citadel Advisors ✦ | 262.09K | +48.0% | $9.84M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 15 | AQR Capital Management ✦ | 256.62K | +2674.0% | $9.63M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 16 | AQR Capital Management ✦ | 256.62K | +2674.0% | $9.63M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 17 | AQR Capital Management ✦ | 256.62K | +2674.0% | $9.63M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 18 | Point72 Asset Management ✦ | 177.29K | -18.9% | $6.65M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 19 | Norges Bank ✦ (passive) | 144.00K | -12.8% | $5.40M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 20 | Tweedy, Browne ✦ | 131.73K | -0.3% | $4.94M | 0.2% | ▼ Trim | 2 | SEC ↗ |
| 21 | Millennium Management ✦ | 97.81K | -64.8% | $3.67M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 22 | Marshall Wace ✦ | 18.82K | -87.9% | $706,427 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 23 | Arrowstreet Capital ✦ | 15.87K | New | $595,451 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Arrowstreet Capital | $595,451 | 0.0% |
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