FIX
Comfort Systems USA, Inc. · Industrials · Engineering & Construction
Momentum inputs (comparable managers): holder breadth 0.0% · share flow +15.5% · 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 | 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 ✦ | 2.32M | +7.9% | $746.98M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 2 | State Street Global Advisors ✦ (passive) | 1.11M | +0.6% | $358.17M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 818.87K | +6.4% | $264.01M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 4 | Geode Capital Management ✦ (passive) | 818.87K | +6.4% | $264.01M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 5 | AQR Capital Management ✦ | 530.43K | +106.4% | $165.23M | 0.2% | ▲ Add | 4 | SEC ↗ |
| 6 | AQR Capital Management ✦ | 530.43K | +106.4% | $165.23M | 0.2% | ▲ Add | 4 | SEC ↗ |
| 7 | AQR Capital Management ✦ | 530.43K | +106.4% | $165.23M | 0.2% | ▲ Add | 4 | SEC ↗ |
| 8 | AQR Capital Management ✦ | 530.43K | +106.4% | $165.23M | 0.2% | ▲ Add | 4 | SEC ↗ |
| 9 | AQR Capital Management ✦ | 530.43K | +106.4% | $165.23M | 0.2% | ▲ Add | 4 | SEC ↗ |
| 10 | Norges Bank ✦ (passive) | 482.27K | +4.3% | $155.45M | 0.0% | ▲ Add | 4 | SEC ↗ |
| 11 | Baillie Gifford ✦ | 445.92K | -26.3% | $143.73M | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 12 | Baillie Gifford ✦ | 445.92K | -26.3% | $143.73M | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 13 | Baillie Gifford ✦ | 445.92K | -26.3% | $143.73M | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 14 | Baillie Gifford ✦ | 445.92K | -26.3% | $143.73M | 0.1% | ▼ Trim | 4 | SEC ↗ |
| 15 | Millennium Management ✦ | 317.85K | +90.0% | $102.45M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 16 | Citadel Advisors ✦ | 193.72K | +658.4% | $62.44M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 17 | Citadel Advisors ✦ | 193.72K | +658.4% | $62.44M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 18 | Two Sigma Investments ✦ | 183.05K | +347.9% | $59.00M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 19 | D. E. Shaw & Co. ✦ | 168.78K | +101.2% | $54.40M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 20 | D. E. Shaw & Co. ✦ | 168.78K | +101.2% | $54.40M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 21 | Arrowstreet Capital ✦ | 151.23K | -11.2% | $48.75M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 22 | T. Rowe Price ✦ | 145.13K | -1.8% | $46.78M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 23 | T. Rowe Price ✦ | 145.13K | -1.8% | $46.78M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 24 | Renaissance Technologies ✦ | 131.20K | +155.8% | $42.29M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 25 | Bridgewater Associates ✦ | 127.48K | +26.3% | $41.09M | 0.2% | ▲ Add | 4 | SEC ↗ |
| 26 | Wellington Management ✦ | 55.72K | -56.5% | $17.96M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 27 | Wellington Management ✦ | 55.72K | -56.5% | $17.96M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 28 | Wellington Management ✦ | 55.72K | -56.5% | $17.96M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 29 | Marshall Wace ✦ | 51.25K | +9588.9% | $16.52M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 30 | Marshall Wace ✦ | 51.25K | +9588.9% | $16.52M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 31 | Gotham Asset Management ✦ | 22.46K | +52.3% | $7.24M | 0.1% | ▲ Add | 4 | SEC ↗ |
| 32 | Markel Group ✦ | 13.00K | 0.0% | $4.19M | 0.0% | Held | 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): 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