97/100BWho owns Comfort Systems USA?What is institutional ownership? Institutional ownership is the share of a company's stock held by funds, banks and other investment managers, as they report it each quarter on Form 13F.
Institutions own 93.6% of Comfort Systems USA's shares, through 1,397 funds, banks and other managers that report their holdings to the SEC; individual investors and others hold the rest. The largest on 30 June 2026 were BlackRock, Inc. (9.6%), Vanguard Capital Management LLC (6.5%), Vanguard Portfolio Management LLC (5.3%).
- Institutions ownWhat is institutional ownership? Institutional ownership is the share of a company's stock held by funds, banks and other investment managers, as they report it each quarter on Form 13F.
- 93.6%
- Institutional holders
- 1,397
- The 10 largest hold
- 43.1%
- Free floatWhat is free float? Free float is the part of a company's shares that anyone can buy and sell: all its shares minus those held by insiders, founders and owners of over 5%.
- 98.9%
- Holdings as of
- 30 Jun 2026
Who owns the shares
Shares free to trade
Closely held shares belong to insiders, founders and owners of more than 5%, and seldom change hands. The free float is the rest: the shares anyone can buy and sell.
The largest shareholders
| # | Holder | Shares | Of the company | Value | Change last quarter (shares) |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 3,397,683 | 9.65% | 6.73B USD | -115,244 |
| 2 | Vanguard Capital Management LLC | 2,297,509 | 6.52% | 4.55B USD | +11,560 |
| 3 | Vanguard Portfolio Management LLC | 1,866,170 | 5.30% | 3.70B USD | -15,014 |
| 4 | FMR LLC | 1,659,799 | 4.71% | 3.29B USD | +210,282 |
| 5 | State Street Corp | 1,537,139 | 4.37% | 3.05B USD | +65,260 |
| 6 | Geode Capital Management, LLC | 1,151,350 | 3.27% | 2.29B USD | -87,269 |
| 7 | Aqr Capital Management LLC | 1,059,017 | 3.01% | 2.08B USD | -57,213 |
| 8 | JPMorgan Chase & Co | 838,417 | 2.38% | 1.63B USD | -51,474 |
| 9 | Capital World Investors | 720,244 | 2.04% | 1.43B USD | -145,536 |
| 10 | Invesco Ltd. | 658,314 | 1.87% | 1.30B USD | +51,734 |
| 11 | Norges Bank | 471,564 | 1.34% | 934.62M USD | New position |
| 12 | Morgan Stanley | 430,085 | 1.22% | 852.41M USD | -30,050 |
| 13 | First Trust Advisors LP | 375,090 | 1.07% | 743.41M USD | -40,796 |
| 14 | Westfield Capital Management Co LP | 355,433 | 1.01% | 704.45M USD | -265,482 |
| 15 | Federated Hermes, Inc. | 341,485 | 0.97% | 676.81M USD | +74,455 |
| 16 | Northern Trust Corp | 340,992 | 0.97% | 675.83M USD | +11,894 |
| 17 | Price T Rowe Associates Inc | 324,671 | 0.92% | 643.48M USD | +163,502 |
| 18 | Charles Schwab Investment Management Inc | 297,845 | 0.85% | 590.31M USD | +10,110 |
| 19 | Sixth Street Partners Management Company, L.P. | 297,845 | 0.85% | 590.31M USD | New position |
| 20 | Amundi | 292,904 | 0.83% | 580.52M USD | +156,069 |
| 21 | Dimensional Fund Advisors LP | 285,445 | 0.81% | 565.66M USD | +5,498 |
| 22 | Goldman Sachs Group Inc | 268,240 | 0.76% | 531.64M USD | +24,193 |
| 23 | Value Aligned Research Advisors, LLC | 243,607 | 0.69% | 482.82M USD | +29,970 |
| 24 | Deutsche Bank Ag\ | 223,896 | 0.64% | 443.75M USD | -16,895 |
| 25 | Franklin Templeton Inc | 222,969 | 0.63% | 441.91M USD | +19,581 |
Famous investors who own Comfort Systems USA
| Investor | Of their portfolio | Shares | Value | Last quarter |
|---|---|---|---|---|
| TemasekQ3 2026 | 0.60% | 132,304 | 218.84M USD | +6.3%Added |
| Ray DalioBridgewater Associates · Q2 2026 | 0.39% | 48,506 | 96.14M USD | -43.9%Reduced |
| Renaissance TechnologiesQ3 2026 | 0.38% | 168,030 | 277.94M USD | +120.6%Added |
| Norway's Sovereign Wealth FundQ2 2026 | 0.09% | 471,564 | 934.62M USD | -6.3%Reduced |
| Saudi Central BankQ3 2026 | 0.06% | 3,605 | 5.96M USD | +46.4%Added |
| Ken GriffinCitadel · Q2 2026 | 0.01% | 46,859 | 92.87M USD | +412.7%Added |
From each fund's newest 13F filing with the SEC; a fund's quarter can be newer or older than another's.All famous investors' portfolios
Congress trades in Comfort Systems USA
Over the last 12 months, 2 members bought it (3 trades) and 0 sold it (0 trades).
| Member | Trade | Owner | Amount | Traded | Disclosed | Since the trade | Report |
|---|---|---|---|---|---|---|---|
| RAlan ArmstrongSenator for Oklahoma | Bought | Self | $1,001 - $15,000 | 27 Mar 2026 | 21 Jul 2026116 days later | -18.6% | |
| RByron DonaldsRepresentative for Florida's 19th district | Bought | Spouse | $1,001 - $15,000 | 4 Dec 2025 | 8 Jan 202635 days later | +10.6% | |
| RByron DonaldsRepresentative for Florida's 19th district | Bought | — | $1,001 - $15,000 | 4 Dec 2025 | 8 Jan 202635 days later | +10.6% | |
| RRobert P. Bresnahan, Jr.Representative for Pennsylvania's 8th district | Sold all | Joint | $1,001 - $15,000 | 13 Jan 2025 | 14 Feb 202532 days later | +153.2% |
Members of Congress must report a trade over $1,000 within 45 days, its amount as a range. A trade by a spouse or child is theirs to report too. The move since the trade is from the close on the day traded to the price now.All Congress stock trades
All institutions last quarter
- Bought or added
- 991 · 246 new
- Sold or cut
- 584 · 95 sold out
- Net shares bought
- +443.03K · 878.05M USD
- Institutional ownership
- 92.2% → 93.6%
Biggest buyers last quarter
- Norges BankNew position
- Sixth Street Partners Management Company, L.P.New position
- Massachusetts Financial Services Co+220,548
- FMR LLC+210,282
- Price T Rowe Associates Inc+163,502
Biggest sellers last quarter
- Westfield Capital Management Co LP-265,482
- Capital International Investors-250,439
- Capital World Investors-145,536
- BlackRock, Inc.-115,244
- Fuller & Thaler Asset Management, Inc.-111,363
From the holders' 13F filings with the SEC for the quarter to 30 Jun 2026, filed up to 45 days after it; the buyers and sellers are among the 100 largest holders.
Common questions about Comfort Systems USA's shareholders
Source: Financial Modeling Prep