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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, Q4 2025

Institutional positions in Comfort Systems USA Inc as of Dec 31, 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
1,043
+178 vs. Q3 2025
Shares held
33.3M
+67.2K (+0.2%) vs. Q3 2025
Total value
$31.1B
+$3.72B (+13.6%) vs. Q3 2025
New holders
260
353 more added
Sold out
82
338 more reduced

23 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 1,043 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 heldQ4 2025: $31.1B
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, Q4 2025

Shares, value and share of portfolio for each institution holding Comfort Systems USA Inc; share changes are against Q3 2025.

Institutions holding FIX in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Waddell & Associates, LLC1,144$1.07M0.07%+355+45.0%Added
Perigon Wealth Management, LLC1,178$1.10M0.02%+557+89.7%Added
Soltis Investment Advisors LLC1,180$1.10M0.07%+259+28.1%Added
WBI Investments1,182$1.10M0.29%+1,182New
Aristotle Atlantic Partners, LLC1,210$1.13M0.05%+1,210New
Exchange Traded Concepts, LLC1,213$1.13M0.01%+934+334.8%Added
North Dakota State Investment Board1,224$1.14M0.04%+1,224New
FirstWave Capital Management LLC1,225$1.14M0.68%+1,225New
Benjamin Edwards Inc1,235$1.15M0.01%−351−22.1%Reduced
Kestra Private Wealth Services, LLC1,243$1.16M0.01%−86−6.5%Reduced
denkapparat Operations GmbH1,246$1.16M0.63%00.0%Unchanged
Belpointe Asset Management LLC1,251$1.17M0.04%−5−0.4%Reduced
Aster Capital Management (DIFC) Ltd1,260$1.18M0.52%+1,260New
Ifrah Financial Services, Inc.1,265$1.18M0.30%−57−4.3%Reduced
GAMMA Investing LLC1,270$1.19M0.06%+154+13.8%Added
EP Wealth Advisors, LLC1,273$1.19M0.01%+1,273New
Fortress Financial Solutions, LLC1,283$1.20M1.22%−30−2.3%Reduced
HMS Capital Management, LLC1,293$1.21M0.50%−11−0.8%Reduced
Private Advisory Group LLC1,294$1.21M0.10%−409−24.0%Reduced
Verus Capital Partners, LLC1,297$1.21M0.08%−100−7.2%Reduced
Change Path, LLC1,305$1.22M0.03%−503−27.8%Reduced
Financiere des Professionnels - Fonds d,investissement inc.1,306$1.22M0.07%00.0%Unchanged
North Star Investment Management Corp.1,307$1.22M0.08%−893−40.6%Reduced
Ariadne Wealth Management, LP946$1.23M0.51%+114+13.7%Added
Hantz Financial Services, Inc.1,322$1.23M0.02%+690+109.2%Added
Cambria Investment Management, L.P.1,329$1.24M0.07%+323+32.1%Added
Clearstead Advisors, LLC1,346$1.26M0.02%+128+10.5%Added
Sowell Financial Services LLC1,352$1.26M0.05%−110−7.5%Reduced
Bannerstone Capital Management, LLC1,385$1.29M1.24%+1,385New
Norinchukin Bank, The1,391$1.30M0.02%+1,391New
Healthcare of Ontario Pension Plan Trust Fund1,391$1.30M0.00%+1,391New
X-Square Capital, LLC1,411$1.32M0.43%−189−11.8%Reduced
Numerai GP LLC1,412$1.32M0.16%+1,412New
Lisanti Capital Growth, LLC1,415$1.32M0.31%00.0%Unchanged
Argos Wealth Advisors, LLC1,415$1.32M0.39%+1,415New
Keystone Investors Pte Ltd1,416$1.32M0.12%+1,416New
Precision Wealth Strategies, LLC1,436$1.34M0.43%+119+9.0%Added
Regions Financial Corp1,441$1.34M0.01%−7−0.5%Reduced
MUFG Securities EMEA plc1,443$1.35M0.02%+1,443New
Kestra Investment Management, LLC1,464$1.37M0.03%−571−28.1%Reduced
AIA Group Ltd1,472$1.37M0.02%−929−38.7%Reduced
Alliance Wealth Advisors, LLC1,479$1.38M0.30%−1,382−48.3%Reduced
Westco Advisory Services Inc1,480$1.38M0.85%+1,480New
Steward Partners Investment Advisory, LLC1,504$1.40M0.01%−402−21.1%Reduced
Gulf International Bank (UK) Ltd1,506$1.41M0.05%+1,506New
L2 Asset Management, LLC1,520$1.42M0.19%−202−11.7%Reduced
Harvest Fund Management Co., Ltd1,526$1.42M0.05%+594+63.7%Added
Cypress Advisory Group LLC1,535$1.43M1.05%00.0%Unchanged
Caerus Investment Advisors, LLC1,539$1.44M0.48%+610+65.7%Added
Metis Global Partners, LLC1,541$1.44M0.03%+1,541New
LRT Capital Management, LLC1,544$1.44M1.23%−245−13.7%Reduced
EverSource Wealth Advisors, LLC1,544$1.44M0.05%+404+35.4%Added
Segment Wealth Management, LLC1,546$1.44M0.08%00.0%Unchanged
QRG Capital Management, Inc.1,553$1.45M0.02%+528+51.5%Added
RE Advisers Corp1,588$1.48M0.04%−5,700−78.2%Reduced
Illumine Investment Management, LLC1,596$1.49M1.09%−69−4.1%Reduced
New Mexico Educational Retirement Board1,600$1.49M0.04%−5,800−78.4%Reduced
Point Nemo Capital, LLC1,604$1.50M1.48%+1,604New
Strategic Blueprint, LLC1,637$1.53M0.09%+318+24.1%Added
Creek Drive Management Group LLC1,650$1.54M1.13%+1,650New
Fifth Third Bancorp1,669$1.56M0.00%−73−4.2%Reduced
Mezzasalma Advisors, LLC1,557$1.56M0.38%+558+55.9%Added
Ethic Inc.1,677$1.57M0.02%+748+80.5%Added
TFR Capital, LLC.1,681$1.57M0.52%+164+10.8%Added
RMB Capital Management, LLC1,687$1.57M0.03%+1,687New
Pensionmark Financial Group, LLC1,689$1.58M0.03%+404+31.4%Added
Apollon Wealth Management, LLC1,689$1.58M0.03%+252+17.5%Added
Brevan Howard Capital Management LP1,709$1.59M0.03%−46,353−96.4%Reduced
Dymon Asia Capital (Singapore) Pte. Ltd.1,717$1.60M0.36%+1,717New
Alps Advisors Inc1,721$1.61M0.01%−27−1.5%Reduced
Maryland State Retirement & Pension System1,722$1.61M0.03%00.0%Unchanged
Pier Capital, LLC1,730$1.61M0.26%−251−12.7%Reduced
Nations Financial Group Inc,1,751$1.63M0.09%−236−11.9%Reduced
Fedenia Advisers LLC1,759$1.64M0.63%+1,759New
NWK Group, Inc.1,762$1.64M0.57%−17−1.0%Reduced
Raiffeisen Bank International AG1,759$1.67M0.02%+1,759New
Sunbelt Securities, Inc.1,798$1.68M0.11%+227+14.4%Added
Louisiana State Employees Retirement System1,800$1.68M0.03%−8,000−81.6%Reduced
Fideuram Asset Management (Ireland) dac1,779$1.68M0.13%+1,779New
Chicago Partners Investment Group LLC1,504$1.69M0.04%+567+60.5%Added
Pinnbrook Capital Management LP1,823$1.70M0.44%−4,236−69.9%Reduced
Guggenheim Capital LLC1,841$1.72M0.01%+118+6.8%Added
Calamos Advisors LLC1,851$1.73M0.01%00.0%Unchanged
AG2R la Mondiale Gestion D'Actifs1,853$1.73M0.08%+1,853New
Tower Research Capital LLC (TRC)1,856$1.73M0.04%−914−33.0%Reduced
Diametric Capital, LP1,874$1.75M0.47%+312+20.0%Added
Nomura Holdings Inc1,880$1.75M0.01%−3,095−62.2%Reduced
Dark Forest Capital Management LP1,896$1.77M0.08%−29−1.5%Reduced
Prakash Investment Advisors LLC1,900$1.77M1.35%+100+5.6%Added
Nelson, Van Denburg & Campbell Wealth Management Group, LLC1,901$1.77M0.06%−714−27.3%Reduced
Cornerstone Investment Partners, LLC1,903$1.78M0.07%−11−0.6%Reduced
Jackson Creek Investment Advisors LLC1,908$1.78M0.53%−605−24.1%Reduced
Wiley Bros.-Aintree Capital, LLC1,921$1.79M0.01%−44−2.2%Reduced
Coldstream Capital Management Inc1,964$1.83M0.02%−17−0.9%Reduced
Vestmark Advisory Solutions, Inc.1,979$1.85M0.02%+1,263+176.4%Added
Skopos Labs, Inc.1,945$1.85M0.09%+1,255+181.9%Added
Kane Investment Management, Inc.1,983$1.85M0.90%+73+3.8%Added
Sumitomo Life Insurance Co1,989$1.86M0.05%+1,989New
Moody National Bank Trust Division1,996$1.86M0.18%−3,750−65.3%Reduced
Mariner Investment Group LLC2,000$1.87M0.11%+2,000New