FIX
Comfort Systems USA, Inc. · Industrials · Engineering & Construction
Momentum inputs (comparable managers):
holder breadth -5.9% ·
share flow -5.6% ·
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 Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 179 | +6 | 25.14M | $49.66B | +9 | −2 |
| Q1 2026 | 175 | +5 | 24.43M | $33.47B | +7 | −3 |
| Q4 2025 | 169 | +1 | 27.03M | $25.24B | +2 | — |
| Q3 2025 | 25 | +2 | 18.02M | $14.86B | +2 | −1 |
| Q2 2025 | 21 | 0 | 16.24M | $8.71B | +1 | −1 |
| Q1 2025 | 18 | 0 | 7.27M | $2.34B | — | — |
| Q4 2024 | 18 | +1 | 6.29M | $2.67B | +1 | — |
| Q3 2024 | 16 | -1 | 5.63M | $2.20B | — | −1 |
| Q2 2024 | 17 | — | 5.97M | $1.82B | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Capital World Investors ✦ | 2.28M | -6.2% | $889.14M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 2 | Baillie Gifford ✦ | 1.01M | -3.1% | $393.13M | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 3 | Baillie Gifford ✦ | 1.01M | -3.1% | $393.13M | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 4 | Baillie Gifford ✦ | 1.01M | -3.1% | $393.13M | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 5 | Baillie Gifford ✦ | 1.01M | -3.1% | $393.13M | 0.3% | ▼ Trim | 2 | SEC ↗ |
| 6 | Geode Capital Management ✦ (passive) | 748.13K | +6.8% | $292.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | Geode Capital Management ✦ (passive) | 748.13K | +6.8% | $292.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 8 | Norges Bank ✦ (passive) | 438.60K | +0.7% | $171.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 9 | AQR Capital Management ✦ | 205.27K | +44.0% | $79.71M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 10 | AQR Capital Management ✦ | 205.27K | +44.0% | $79.71M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 11 | AQR Capital Management ✦ | 205.27K | +44.0% | $79.71M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 12 | Millennium Management ✦ | 174.50K | -49.1% | $68.12M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 13 | T. Rowe Price ✦ | 161.93K | -16.3% | $63.21M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 14 | T. Rowe Price ✦ | 161.93K | -16.3% | $63.21M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 15 | Wellington Management ✦ | 141.84K | -50.3% | $55.37M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 16 | Wellington Management ✦ | 141.84K | -50.3% | $55.37M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | Wellington Management ✦ | 141.84K | -50.3% | $55.37M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 18 | Wellington Management ✦ | 141.84K | -50.3% | $55.37M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 19 | Wellington Management ✦ | 141.84K | -50.3% | $55.37M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 20 | Arrowstreet Capital ✦ | 133.75K | +39.4% | $52.21M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 21 | D. E. Shaw & Co. ✦ | 129.49K | -8.1% | $50.55M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 22 | D. E. Shaw & Co. ✦ | 129.49K | -8.1% | $50.55M | 0.1% | ▼ Trim | 2 | SEC ↗ |
| 23 | Renaissance Technologies ✦ | 94.00K | +178.1% | $36.69M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 24 | Citadel Advisors ✦ | 41.42K | +7.8% | $16.17M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 25 | Citadel Advisors ✦ | 41.42K | +7.8% | $16.17M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 26 | Two Sigma Investments ✦ | 37.67K | -28.8% | $14.71M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 27 | Bridgewater Associates ✦ | 15.72K | +53.0% | $6.14M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 28 | Gotham Asset Management ✦ | 13.36K | +1283.4% | $5.22M | 0.1% | ▲ Add | 2 | SEC ↗ |
| 29 | Markel Group ✦ | 13.00K | 0.0% | $5.07M | 0.0% | Held | 2 | 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
| Point72 Asset Management | $4.84M | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1,187 holders, 31.59M shares, $41.94B 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)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer · 2.55K sh · $4.75M
Director · 4.00K sh · $6.78M
Director · 3.50K sh · $5.92M
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology