Security record · archived quarter
ATMU
Atmus Filtration Technologies Inc. · Consumer Cyclical · Auto - Parts
16Tracked holders
-1Δ holders
31.86MShares held
$1.16BReported value
+0New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth -5.9% ·
share flow -1.0% ·
net new positions -6.2%
— formula
Broad distribution — falling shares and fewer holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
Ownership over time
| 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 | — | — |
Who holds it · Q2 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 8.15M | — | $296.65M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | The Vanguard Group ✦ (passive) | 8.15M | — | $296.65M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | The Vanguard Group ✦ (passive) | 8.15M | — | $296.65M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | The Vanguard Group ✦ (passive) | 8.15M | — | $296.65M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | The Vanguard Group ✦ (passive) | 8.15M | — | $296.65M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 6.74M | — | $245.43M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 6.74M | — | $245.43M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 6.74M | — | $245.43M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 6.74M | — | $245.43M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 6.74M | — | $245.43M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 6.74M | — | $245.43M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 6.74M | — | $245.43M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 6.74M | — | $245.43M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 6.74M | — | $245.43M | 0.0% | n/c | 1 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 6.74M | — | $245.43M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 6.74M | — | $245.43M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 6.74M | — | $245.43M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 6.74M | — | $245.43M | 0.0% | n/c | 1 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 6.74M | — | $245.43M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 6.74M | — | $245.43M | 0.0% | n/c | 1 | SEC ↗ |
| 21 | Fidelity (FMR) ✦ | 3.98M | — | $145.04M | 0.0% | n/c | 1 | SEC ↗ |
| 22 | Fidelity (FMR) ✦ | 3.98M | — | $145.04M | 0.0% | n/c | 1 | SEC ↗ |
| 23 | Fidelity (FMR) ✦ | 3.98M | — | $145.04M | 0.0% | n/c | 1 | SEC ↗ |
| 24 | Fidelity (FMR) ✦ | 3.98M | — | $145.04M | 0.0% | n/c | 1 | SEC ↗ |
| 25 | Fidelity (FMR) ✦ | 3.98M | — | $145.04M | 0.0% | n/c | 1 | SEC ↗ |
| 26 | Wellington Management ✦ | 2.63M | +8.6% | $95.90M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 27 | Wellington Management ✦ | 2.63M | +8.6% | $95.90M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 28 | Wellington Management ✦ | 2.63M | +8.6% | $95.90M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 29 | Wellington Management ✦ | 2.63M | +8.6% | $95.90M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 30 | Wellington Management ✦ | 2.63M | +8.6% | $95.90M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 31 | Geode Capital Management ✦ (passive) | 2.37M | +20.8% | $86.15M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 32 | Geode Capital Management ✦ (passive) | 2.37M | +20.8% | $86.15M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 33 | D. E. Shaw & Co. ✦ | 2.20M | +5.7% | $79.97M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 34 | D. E. Shaw & Co. ✦ | 2.20M | +5.7% | $79.97M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 35 | T. Rowe Price ✦ | 2.11M | -0.7% | $76.78M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 36 | T. Rowe Price ✦ | 2.11M | -0.7% | $76.78M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 37 | State Street Global Advisors ✦ (passive) | 1.95M | +0.7% | $71.15M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 38 | Marshall Wace ✦ | 676.88K | +119.2% | $24.65M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 39 | Marshall Wace ✦ | 676.88K | +119.2% | $24.65M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 40 | Renaissance Technologies ✦ | 438.90K | +5.7% | $15.98M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 41 | Citadel Advisors ✦ | 148.88K | -87.6% | $5.42M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 42 | Citadel Advisors ✦ | 148.88K | -87.6% | $5.42M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 43 | Two Sigma Investments ✦ | 121.31K | -26.2% | $4.42M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 44 | Arrowstreet Capital ✦ | 109.61K | -38.1% | $3.99M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 45 | Millennium Management ✦ | 91.56K | -58.3% | $3.33M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 46 | Tweedy, Browne ✦ | 89.59K | 0.0% | $3.26M | 0.3% | Held | 5 | SEC ↗ |
| 47 | AQR Capital Management ✦ | 62.24K | -17.9% | $2.27M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 48 | AQR Capital Management ✦ | 62.24K | -17.9% | $2.27M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 49 | AQR Capital Management ✦ | 62.24K | -17.9% | $2.27M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 50 | AQR Capital Management ✦ | 62.24K | -17.9% | $2.27M | 0.0% | ▼ Trim | 5 | 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
| Norges Bank | $5.29M | was 0.0% |
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.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
Aug 12
Macadam Stephen E.
Director · 2.00K sh @ 49.78 · $99,551
Open-market sales (S)
Aug 17
Swan Renee
Officer · 3.87K sh · $196,956
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Aug 13
SC 13G — Invesco Ltd.
Aug 06
SC 13G/A — FMR LLC
Jul 31
SC 13G — VANGUARD PORTFOLIO MANAGEMENT LLC
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2025 ·
Methodology ·
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