Comfort Systems USA Inc
Institutional managers reporting a position on Form 13F-HR, as of Mar 31, 2026
1Largest holdersA manager's positions among the 500 largest, summed
- 1BlackRock, Inc.$4.84B10.9%
- 2VANGUARD CAPITAL MANAGEMENT LLC$3.15B7.1%
- 3VANGUARD PORTFOLIO MANAGEMENT LLC$2.59B5.8%
- 4STATE STREET CORP$2.03B4.6%
- 5FMR LLC$2B4.5%
- 6GEODE CAPITAL MANAGEMENT, LLC$1.71B3.8%
- 7AQR CAPITAL MANAGEMENT LLC$1.49B3.3%
- 8Capital World Investors$1.19B2.7%
- $1.13B2.5%
- 10WESTFIELD CAPITAL MANAGEMENT CO LP$856.24M1.9%
2HoldersChange from Dec 31, 2025
| Holder | Quantity | Change | Value | Share | Filed |
|---|---|---|---|---|---|
| BlackRock, Inc.Common shares | 3.5M | +64,292+1.9% | $4.84B | 10.88% | May 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLCCommon shares · Amendment 1 (restatement) | 2.3M | — | $3.15B | 7.08% | May 15, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLCCommon shares | 1.9M | — | $2.59B | 5.83% | May 8, 2026 |
| STATE STREET CORPCommon shares | 1.5M | +43,205+3.0% | $2.03B | 4.56% | May 15, 2026 |
| FMR LLCCommon shares | 1.4M | −221.2K−13.2% | $2B | 4.49% | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLCCommon shares | 1.2M | +52,710+4.4% | $1.71B | 3.84% | May 15, 2026 |
| AQR CAPITAL MANAGEMENT LLCCommon shares | 1.1M | +96,308+9.4% | $1.49B | 3.35% | May 15, 2026 |
| Capital World InvestorsCommon shares | 865.8K | −774.8K−47.2% | $1.19B | 2.68% | May 13, 2026 |
| JPMORGAN CHASE & COCommon shares · Amendment 1 (restatement) | 889.9K | +182.9K+25.9% | $1.13B | 2.54% | May 13, 2026 |
| WESTFIELD CAPITAL MANAGEMENT CO LPCommon shares | 620.9K | −47,920−7.2% | $856.24M | 1.92% | May 11, 2026 |
| Invesco Ltd.Common shares | 606.6K | −46,399−7.1% | $836.47M | 1.88% | May 12, 2026 |
| MORGAN STANLEYCommon shares | 460.1K | +28,462+6.6% | $634.52M | 1.43% | May 15, 2026 |
| FIRST TRUST ADVISORS LPCommon shares | 415.9K | −66,213−13.7% | $573.5M | 1.29% | May 13, 2026 |
| Capital International InvestorsCommon shares | 391.8K | +278.2K+244.8% | $540.33M | 1.21% | May 13, 2026 |
| NORTHERN TRUST CORPCommon shares | 329.1K | +10,316+3.2% | $453.82M | 1.02% | May 14, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INCCommon shares | 287.7K | +1,253+0.4% | $396.78M | 0.89% | May 15, 2026 |
| DIMENSIONAL FUND ADVISORS LPCommon shares | 279.9K | +14,423+5.4% | $385.8M | 0.87% | May 7, 2026 |
| FEDERATED HERMES, INC.Common shares | 267K | −50,436−15.9% | $368.23M | 0.83% | May 11, 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIPCommon shares | 253K | +28,712+12.8% | $348.86M | 0.78% | May 14, 2026 |
| Hood River Capital Management LLCCommon shares | 249.4K | +3,528+1.4% | $343.9M | 0.77% | May 15, 2026 |
| GOLDMAN SACHS GROUP INCCommon shares | 244K | +46,057+23.3% | $336.54M | 0.76% | May 15, 2026 |
| FULLER & THALER ASSET MANAGEMENT, INC.Common shares | 242.2K | −335.9K−58.1% | $333.99M | 0.75% | May 14, 2026 |
| DEUTSCHE BANK AG\Common shares | 240.8K | −72,033−23.0% | $332.05M | 0.75% | May 6, 2026 |
| BAILLIE GIFFORD & COCommon shares | 225.1K | −49,624−18.1% | $310.44M | 0.70% | May 8, 2026 |
| Point72 Asset Management, L.P.Common shares | 219.2K | +72,378+49.3% | $302.32M | 0.68% | May 15, 2026 |
3Report periods
| Report date | Filings | Holdings | Combined value | Latest filed | |
|---|---|---|---|---|---|
| Mar 31, 2026 | 1,192 | 1,226 | $44.52B | May 26, 2026 | |
| Dec 31, 2025 | 1,046 | 1,072 | $30.84B | May 28, 2026 | |
| Sep 30, 2025 | 893 | 918 | — | May 27, 2026 | |
| Jun 30, 2025 | 761 | 781 | — | May 21, 2026 | |
| Mar 31, 2025 | 24 | 25 | $408.74M | May 11, 2026 |
Filings for a quarter keep arriving for months after it ends, so the most recent and the earliest periods can be incomplete.
4About this data
Each row is one manager's position as disclosed in one Form 13F-HR filing; managers below the Form 13F reporting threshold do not appear. Values, quantities and manager names are as reported in each filing. A row totals the entries of one filing that share a security class and option type; a value or quantity is shown as not comparable when those entries differ in currency or unit. A restatement replaces the original filing and every earlier amendment for the same period; an amendment adding new holdings is listed alongside the filing it supplements and labelled as such. Positions are matched to this listing through the security identifiers reported in the filing.