COMFORT SYSTEMS USA INC (FIX) Institutional Shareholders
COMFORT SYSTEMS USA INC (FIX) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $66.92B in FIX holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of FIX tracked by InsiderSet, reporting ownership valued at approximately $6.73B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $5.35B, representing an estimated loss of -20.59% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 49% of the total disclosed FIX value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Capital Management Llc, Banque Cantonale Vaudoise, and several other long-term asset managers with concentrated positions in COMFORT SYSTEMS USA INC (FIX).
This page ranks the largest institutional FIX shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
1,327
Total Reported Value
$66.92B
Largest Holder
Blackrock, Inc.
Largest Position
$6.73B
Insider Transactions (90d)
5
Latest Filing Quarter
Q2 2026
New Institutional Positions
101
Funds Exiting Positions
1
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.10% | 3,397,683 | $6,734,036,999 | $5,347,817,135 | -$1,386,219,864 | -20.59% | |
| Vanguard Capital Management Llc | 0.10% | 2,297,509 | $4,553,547,963 | $3,616,187,266 | -$937,360,697 | -20.59% | |
| Banque Cantonale Vaudoise | 0.55% | 1,993 | $3,950,000,000 | $3,136,902 | -$3,946,863,098 | -99.92% | |
| Vanguard Portfolio Management Llc | 0.17% | 1,866,170 | $3,698,655,631 | $2,937,276,933 | -$761,378,698 | -20.59% | |
| Fmr Llc | 0.14% | 1,659,799 | $3,289,636,511 | $2,612,457,234 | -$677,179,277 | -20.59% | |
| State Street Corp | 0.09% | 1,537,139 | $3,046,532,641 | $2,419,395,300 | -$627,137,341 | -20.59% | |
| Geode Capital Management, Llc | 0.12% | 1,151,350 | $2,285,380,443 | $1,812,178,846 | -$473,201,597 | -20.71% | |
| Aqr Capital Management Llc | 0.73% | 1,058,960 | $2,084,520,103 | $1,666,760,682 | -$417,759,421 | -20.04% | |
| Jpmorgan Chase & Co | 0.10% | 838,417 | $1,633,817,208 | $1,319,634,821 | -$314,182,387 | -19.23% | |
| Capital World Investors | 0.17% | 720,244 | $1,427,487,596 | $1,133,635,246 | -$293,852,350 | -20.59% | |
| Invesco Ltd. | 0.10% | 658,314 | $1,304,744,562 | $1,036,159,903 | -$268,584,659 | -20.59% | |
| Norges Bank | 0.09% | 471,564 | $934,616,270 | $742,222,873 | -$192,393,397 | -20.59% | |
| Morgan Stanley | 0.05% | 430,085 | $852,413,430 | $676,936,587 | -$175,476,843 | -20.59% | |
| First Trust Advisors Lp | 0.44% | 375,090 | $743,408,316 | $590,376,656 | -$153,031,660 | -20.59% | |
| Westfield Capital Management Co Lp | 2.30% | 355,433 | $704,451,409 | $559,437,325 | -$145,014,084 | -20.59% | |
| Federated Hermes, Inc. | 0.97% | 341,485 | $676,806,196 | $537,483,731 | -$139,322,465 | -20.59% | |
| Northern Trust Corp | 0.08% | 340,992 | $675,829,093 | $536,707,768 | -$139,121,325 | -20.59% | |
| Price T Rowe Associates Inc | 0.06% | 324,671 | $643,483,000 | $511,019,167 | -$132,463,833 | -20.59% | |
| Charles Schwab Investment Management Inc | 0.08% | 297,845 | $590,313,898 | $468,796,116 | -$121,517,782 | -20.59% | |
| Dimensional Fund Advisors Lp | 0.10% | 285,445 | $565,660,742 | $449,279,012 | -$116,381,730 | -20.57% | |
| Goldman Sachs Group Inc | 0.06% | 268,240 | $531,638,900 | $422,199,030 | -$109,439,870 | -20.59% | |
| Value Aligned Research Advisors, Llc | 2.89% | 243,607 | $482,816,894 | $383,427,674 | -$99,389,220 | -20.59% | |
| Deutsche Bank Ag\ | 0.13% | 223,896 | $443,750,678 | $352,403,348 | -$91,347,330 | -20.59% | |
| Massachusetts Financial Services Co | 0.14% | 220,776 | $440,012,033 | $347,492,593 | -$92,519,440 | -21.03% | |
| Arrowstreet Capital, Limited Partnership | 0.19% | 221,703 | $439,404,261 | $348,951,654 | -$90,452,607 | -20.59% | |
| Baillie Gifford & Co | 0.38% | 212,655 | $421,471,578 | $334,710,464 | -$86,761,114 | -20.59% | |
| Lord, Abbett & Co. Llc | 1.19% | 209,302 | $414,826,000 | $329,432,976 | -$85,393,024 | -20.59% | |
| Dz Bank Ag Deutsche Zentral Genossenschafts Bank, Frankfurt Am Main | 0.32% | 207,953 | $412,150,102 | $327,309,704 | -$84,840,398 | -20.58% | |
| Artisan Partners Limited Partnership | 0.65% | 202,113 | $400,578,231 | $318,117,777 | -$82,460,454 | -20.59% | |
| Vanguard Fiduciary Trust Co | 0.09% | 201,937 | $400,229,037 | $317,840,761 | -$82,388,276 | -20.59% | |
| Legal & General Group Plc | 0.08% | 201,870 | $400,096,243 | $317,735,305 | -$82,360,938 | -20.59% | |
| Ubs Group Ag | 0.06% | 192,295 | $381,119,075 | $302,664,638 | -$78,454,437 | -20.59% | |
| Allianz Asset Management Gmbh | 0.34% | 187,971 | $372,549,123 | $295,858,835 | -$76,690,288 | -20.59% | |
| Bank Of New York Mellon Corp | 0.06% | 186,926 | $370,479,151 | $294,214,047 | -$76,265,104 | -20.59% | |
| Point72 Asset Management, L.P. | 0.54% | 179,727 | $356,209,928 | $282,883,109 | -$73,326,819 | -20.59% | |
| Royal Bank Of Canada | 0.06% | 171,195 | $339,299,000 | $269,454,082 | -$69,844,918 | -20.59% | |
| American Century Companies Inc | 0.14% | 162,875 | $322,810,106 | $256,358,735 | -$66,451,371 | -20.59% | |
| Nuveen, Llc | 0.08% | 158,900 | $314,931,247 | $250,102,244 | -$64,829,003 | -20.59% | |
| Jacobs Levy Equity Management, Inc | 1.03% | 144,823 | $287,031,945 | $227,945,609 | -$59,086,336 | -20.59% | |
| Wcm Investment Management, Llc | 0.51% | 144,923 | $282,410,001 | $228,103,005 | -$54,306,996 | -19.23% | |
| Capital International Investors | 0.06% | 141,392 | $280,231,874 | $222,545,352 | -$57,686,522 | -20.59% | |
| Royal London Asset Management Ltd | 0.52% | 141,047 | $279,548,104 | $222,002,336 | -$57,545,768 | -20.59% | |
| Voya Investment Management Llc | 0.24% | 138,257 | $273,413,436 | $217,610,988 | -$55,802,448 | -20.41% | |
| Fuller & Thaler Asset Management, Inc. | 0.71% | 130,833 | $259,304,020 | $205,925,909 | -$53,378,111 | -20.59% | |
| Raymond James Financial Inc | 0.07% | 125,815 | $249,359,538 | $198,027,777 | -$51,331,761 | -20.59% | |
| Temasek Holdings (Private) Ltd | 0.68% | 124,436 | $246,625,930 | $195,857,287 | -$50,768,643 | -20.59% | |
| Caisse De Depot Et Placement Du Quebec | 0.35% | 123,032 | $243,843,272 | $193,647,447 | -$50,195,825 | -20.59% | |
| Evercore Wealth Management, Llc | 3.15% | 112,392 | $222,755,323 | $176,900,512 | -$45,854,811 | -20.59% | |
| Ameriprise Financial Inc | 0.04% | 111,534 | $221,049,712 | $175,550,055 | -$45,499,657 | -20.58% | |
| Amf Tjanstepension Ab | 1.29% | 109,590 | $217,201,901 | $172,490,276 | -$44,711,625 | -20.59% |
Frequently asked questions about FIX
Who owns the most FIX stock?
The largest holders of FIX are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for COMFORT SYSTEMS USA INC (FIX).
Is FIX widely held by superinvestors?
Many widely followed stocks like FIX appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly FIX is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.