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Comfort Systems USA Inc

FIX
Exchange
NYSE
Industry
Electrical Work
SEC CIK
0001035983

In the last 90 days, Comfort Systems USA Inc insiders filed 0 open-market purchases and 3 sales; 1,357 institutions reported holding it in 13F filings for Q2 2026, worth $64.6B in total; superinvestors Coatue Management and Markel Group hold it.

13F holders, Q3 2025

Institutional positions in Comfort Systems USA Inc as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
888
+139 vs. Q2 2025
Shares held
33.3M
−2.91K (0.0%) vs. Q2 2025
Total value
$27.5B
+$9.58B (+53.6%) vs. Q2 2025
New holders
211
281 more added
Sold out
72
310 more reduced

6 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting FIX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 888 institutions
Q1 2021: 252 institutionsQ2 2021: 282 institutionsQ3 2021: 269 institutionsQ4 2021: 291 institutionsQ1 2022: 280 institutionsQ2 2022: 277 institutionsQ3 2022: 299 institutionsQ4 2022: 337 institutionsQ1 2023: 348 institutionsQ2 2023: 378 institutionsQ3 2023: 400 institutionsQ4 2023: 447 institutionsQ1 2024: 505 institutionsQ2 2024: 555 institutionsQ3 2024: 591 institutionsQ4 2024: 665 institutionsQ1 2025: 632 institutionsQ2 2025: 755 institutionsQ3 2025: 888 institutionsQ4 2025: 1,043 institutionsQ1 2026: 1,206 institutionsQ2 2026: 1,357 institutions
Value heldQ3 2025: $27.5B
Q1 2021: $2.57BQ2 2021: $2.67BQ3 2021: $2.43BQ4 2021: $3.41BQ1 2022: $3.11BQ2 2022: $2.88BQ3 2022: $3.35BQ4 2022: $3.92BQ1 2023: $5.03BQ2 2023: $5.62BQ3 2023: $5.97BQ4 2023: $7.16BQ1 2024: $11.0BQ2 2024: $10.5BQ3 2024: $13.1BQ4 2024: $14.4BQ1 2025: $10.9BQ2 2025: $18.1BQ3 2025: $27.5BQ4 2025: $31.1BQ1 2026: $44.6BQ2 2026: $64.6B
Institutions holding FIX and their total value by quarter
QuarterHoldersValue
Q2 20261,357$64.6B
Q1 20261,206$44.6B
Q4 20251,043$31.1B
Q3 2025888$27.5B
Q2 2025755$18.1B
Q1 2025632$10.9B
Q4 2024665$14.4B
Q3 2024591$13.1B
Q2 2024555$10.5B
Q1 2024505$11.0B
Q4 2023447$7.16B
Q3 2023400$5.97B
Q2 2023378$5.62B
Q1 2023348$5.03B
Q4 2022337$3.92B
Q3 2022299$3.35B
Q2 2022277$2.88B
Q1 2022280$3.11B
Q4 2021291$3.41B
Q3 2021269$2.43B
Q2 2021282$2.67B
Q1 2021252$2.57B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Comfort Systems USA Inc; share changes are against Q2 2025.

Institutions holding FIX in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
AXA Investment Managers S.A.52,718$43.5M0.12%+52,718New
LPL Financial LLC54,666$45.1M0.01%+28,603+109.7%Added
Value Aligned Research Advisors, LLC54,715$45.1M1.04%+54,715New
Fiera Capital Corp58,132$48.0M0.16%+52,463+925.4%Added
Legal & General Group Plc61,545$50.8M0.01%−2,733−4.3%Reduced
Smith Group Asset Management, LLC62,660$51.7M2.97%+2,792+4.7%Added
Ieq Capital, LLC63,036$52.0M0.16%+9,267+17.2%Added
Public Employees Retirement Association of Colorado63,050$52.0M0.19%−2,677−4.1%Reduced
Jennison Associates LLC63,561$52.4M0.03%+61,026+2,407.3%Added
Systematic Financial Management LP64,484$53.2M1.29%−27,406−29.8%Reduced
Barclays PLC64,704$53.4M0.02%+31,775+96.5%Added
Neuberger Berman Group LLC64,796$53.5M0.04%−561−0.9%Reduced
California Public Employees Retirement System67,733$55.9M0.03%+4,837+7.7%Added
Swiss National Bank68,900$56.9M0.03%+1,400+2.1%Added
Robeco Schweiz AG69,200$57.1M1.28%−19,078−21.6%Reduced
Citadel Advisors LLC69,204$57.1M0.05%+4,881+7.6%Added
Retirement Systems of Alabama77,369$63.8M0.21%−456−0.6%Reduced
Allianz Asset Management GmbH77,673$64.1M0.08%−16,222−17.3%Reduced
WCM Investment Management, LLC80,823$64.8M0.13%+31,231+63.0%Added
Envestnet Asset Management Inc85,830$70.8M0.02%+4,765+5.9%Added
Victory Capital Management Inc85,870$70.9M0.04%−12,260−12.5%Reduced
Janus Henderson Group PLC86,181$71.2M0.03%−17,306−16.7%Reduced
Jane Street Group, LLC86,501$71.4M0.08%+54,322+168.8%Added
Granahan Investment Management Inc92,772$76.6M3.13%+24,160+35.2%Added
Artemis Investment Management LLP93,331$77.0M0.96%−131,999−58.6%Reduced
Royal Bank of Canada95,425$78.7M0.01%+21,452+29.0%Added
Blue Grotto Capital, LLC95,607$78.9M9.15%−38,210−28.6%Reduced
Congress Asset Management Co95,877$79.1M0.53%−15,568−14.0%Reduced
Rhumbline Advisers96,663$79.8M0.06%−1,732−1.8%Reduced
Raymond James Financial Inc101,343$83.6M0.03%−7,960−7.3%Reduced
Russell Investments Group, Ltd.105,999$87.4M0.10%−19,730−15.7%Reduced
American Century Companies Inc106,328$87.7M0.04%+7,293+7.4%Added
UBS Asset Management Americas Inc113,657$93.8M0.02%−63,571−35.9%Reduced
Handelsbanken Fonder AB114,458$94.4M0.30%−20,679−15.3%Reduced
EULAV Asset Management120,608$99.5M2.31%−12,002−9.1%Reduced
Caisse de Depot Et Placement du Quebec120,933$99.8M0.18%−58,091−32.4%Reduced
Bain Capital Public Equity Management II, LLC121,581$100.3M4.69%+121,581New
UBS Group AG127,129$104.9M0.02%+26,268+26.0%Added
Bank of America Corp133,121$109.8M0.01%−47,993−26.5%Reduced
Capital International Investors140,428$115.9M0.02%−66,514−32.1%Reduced
Ameriprise Financial Inc144,262$119.0M0.03%−35,159−19.6%Reduced
Lazard Asset Management LLC145,471$120.0M0.16%+14,142+10.8%Added
Franklin Resources Inc150,130$123.9M0.03%−40,607−21.3%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)152,141$125.5M0.29%+27,752+22.3%Added
Capital Research Global Investors152,607$125.9M0.02%−23,053−13.1%Reduced
Nuveen, LLC154,840$127.8M0.03%−58,951−27.6%Reduced
Comerica Bank158,406$130.7M0.49%+7,127+4.7%Added
Evercore Wealth Management, LLC159,280$131.4M1.93%+610+0.4%Added
Principal Financial Group Inc160,698$132.6M0.07%−12,686−7.3%Reduced
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main166,522$137.4M0.12%+18,210+12.3%Added
GW&K Investment Management, LLC174,817$144.3M1.28%−28,248−13.9%Reduced
D. E. Shaw & Co., Inc.187,594$154.8M0.12%−7,408−3.8%Reduced
Arrowstreet Capital, Limited Partnership190,203$157.0M0.10%+40,596+27.1%Added
Third Point LLCSuperinvestorThird Point200,000$165.0M1.97%+15,000+8.1%Added
Price T Rowe Associates Inc200,832$165.7M0.02%+10,839+5.7%Added
Charles Schwab Investment Management Inc207,729$171.4M0.03%−94,461−31.3%Reduced
Clearbridge Investments, LLC208,191$171.8M0.13%−1,715−0.8%Reduced
Alliancebernstein L.P.211,153$174.2M0.05%−60,230−22.2%Reduced
Voya Investment Management LLC217,122$178.5M0.18%−79,671−26.8%Reduced
Qube Research & Technologies Ltd216,715$178.8M0.25%+116,578+116.4%Added
Artisan Partners Limited Partnership234,223$193.3M0.28%+20,592+9.6%Added
Deutsche Bank AG238,412$196.7M0.07%+24,659+11.5%Added
Royal London Asset Management Ltd240,548$198.5M0.43%−101,497−29.7%Reduced
Hood River Capital Management LLC241,191$199.0M2.35%−2,194−0.9%Reduced
Bank of New York Mellon Corp271,377$223.9M0.04%−4,747−1.7%Reduced
Jacobs Levy Equity Management, Inc272,441$224.8M0.89%−28,113−9.4%Reduced
Lord, Abbett & Co. LLC273,747$225.9M0.67%+141,407+106.9%Added
Goldman Sachs Group Inc275,470$227.3M0.03%+23,356+9.3%Added
Castle Hook Partners LP278,932$230.2M3.48%+278,932New
Dimensional Fund Advisors LP304,671$251.3M0.05%−20,912−6.4%Reduced
Northern Trust Corp309,323$255.2M0.03%−26,537−7.9%Reduced
Federated Hermes, Inc.324,279$267.6M0.47%+26,335+8.8%Added
AMF Pensionsforsakring AB324,974$268.2M1.70%+324,974New
Morgan Stanley345,660$285.2M0.02%+13,590+4.1%Added
Millennium Management LLC358,685$296.0M0.23%+203,136+130.6%Added
Fuller & Thaler Asset Management, Inc.370,623$305.8M1.04%−162,508−30.5%Reduced
Baillie Gifford & Co412,784$340.6M0.25%−19,758−4.6%Reduced
First Trust Advisors LP513,257$423.5M0.32%+117,892+29.8%Added
JPMorgan Chase & Co734,519$606.1M0.04%+197,613+36.8%Added
AQR Capital Management LLC835,560$678.5M0.43%+53,125+6.8%Added
Westfield Capital Management Co LP833,195$687.5M2.88%−103,217−11.0%Reduced
Geode Capital Management, LLC853,468$704.4M0.04%+31,571+3.8%Added
State Street Corp1,053,556$869.4M0.03%−20,221−1.9%Reduced
Invesco Ltd.1,064,560$878.5M0.14%+73,727+7.4%Added
Capital World Investors1,799,310$1.48B0.20%−427,843−19.2%Reduced
FMR LLC1,892,021$1.56B0.08%+321,531+20.5%Added
Vanguard Group Inc3,684,559$3.04B0.05%−87,859−2.3%Reduced
BlackRock, Inc.3,977,588$3.28B0.06%+96,388+2.5%Added
AXA S.A.0$00.00%−56,700−100.0%Sold out
Balyasny Asset Management LLC0$00.00%−34,682−100.0%Sold out
Jain Global LLC0$00.00%−34,276−100.0%Sold out
Distillate Capital Partners LLC0$00.00%−29,974−100.0%Sold out
Twinbeech Capital LP0$00.00%−14,535−100.0%Sold out
Moore Capital Management, LP0$00.00%−12,372−100.0%Sold out
Worldquant Millennium Advisors LLC0$00.00%−10,509−100.0%Sold out
EAM Global Investors LLC0$00.00%−9,227−100.0%Sold out
CWA Asset Management Group, LLC0$00.00%−6,212−100.0%Sold out
Night Squared LP0$00.00%−5,598−100.0%Sold out
WBI Investments0$00.00%−4,702−100.0%Sold out
XTX Topco Ltd0$00.00%−3,048−100.0%Sold out