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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
Thames Capital Management LLC9,273$7.65M1.10%+9,273New
Ci Investments Inc.9,249$7.63M0.03%+1,177+14.6%Added
Teacher Retirement System of Texas9,227$7.61M0.03%−443−4.6%Reduced
CIBC Private Wealth Group, LLC9,131$7.53M0.01%−2,469−21.3%Reduced
Los Angeles Capital Management LLC9,077$7.49M0.03%+745+8.9%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys9,035$7.46M0.04%−8−0.1%Reduced
KLP Kapitalforvaltning AS8,900$7.34M0.03%+200+2.3%Added
Thrivent Financial for Lutherans8,880$7.33M0.01%+593+7.2%Added
California First Leasing Corp8,720$7.20M2.63%00.0%Unchanged
Pathstone Holdings, LLC8,588$7.09M0.03%+70+0.8%Added
State of Michigan Retirement System8,400$6.93M0.03%−100−1.2%Reduced
Cim, LLC8,370$6.91M0.90%+11+0.1%Added
HighTower Advisors, LLC8,175$6.78M0.01%−174−2.1%Reduced
Aubrey Capital Management Ltd8,200$6.77M2.13%−2,200−21.2%Reduced
Anderson Hoagland & Co8,199$6.77M0.61%−172−2.1%Reduced
Ensign Peak Advisors, Inc8,169$6.74M0.01%−3,185−28.1%Reduced
Amundi8,080$6.67M0.00%−20,207−71.4%Reduced
Silvercrest Asset Management Group LLC7,966$6.57M0.04%−12,752−61.6%Reduced
Dorsey Wright & Associates7,946$6.56M1.47%+7,946New
Northwestern Mutual Investment Management Company, LLC7,846$6.47M0.09%−12−0.2%Reduced
Virginia Retirement Systems Et Al7,823$6.46M0.04%−900−10.3%Reduced
Insight Wealth Strategies, LLC7,788$6.43M0.76%−130−1.6%Reduced
Private Advisor Group, LLC7,781$6.42M0.03%+2,598+50.1%Added
Walleye Trading LLC7,737$6.38M0.10%+4,359+129.0%Added
Freedom Day Solutions, LLC7,681$6.34M1.72%−307−3.8%Reduced
SummitTX Capital, L.P.7,577$6.25M0.26%+7,577New
Davidson Capital Management Inc.7,505$6.19M1.38%−429−5.4%Reduced
Hedeker Wealth, LLC7,481$6.17M1.28%+227+3.1%Added
Polymer Capital Management (HK) LTD7,472$6.17M0.86%+6,458+636.9%Added
New Mexico Educational Retirement Board7,400$6.11M0.19%00.0%Unchanged
Xponance, Inc.7,395$6.10M0.05%+114+1.6%Added
New Millennium Group LLC7,303$6.03M2.75%+7,303New
Two Sigma Advisers, LP7,300$6.02M0.01%−3,700−33.6%Reduced
RE Advisers Corp7,288$6.01M0.14%−500−6.4%Reduced
Mackenzie Financial Corp7,104$5.86M0.01%−1,409−16.6%Reduced
Oregon Public Employees Retirement Fund7,081$5.84M0.08%−113−1.6%Reduced
Concentric Capital Strategies, LP6,893$5.69M0.27%−2,827−29.1%Reduced
Prudential Financial Inc6,893$5.69M0.01%−2,707−28.2%Reduced
HSBC Holdings PLC6,942$5.68M0.00%−10,268−59.7%Reduced
Mercer Global Advisors Inc6,877$5.67M0.01%+3,698+116.3%Added
Banco Santander, S.A.6,853$5.65M0.05%+6,853New
Penobscot Investment Management Company, Inc.6,833$5.64M0.43%+225+3.4%Added
New Age Alpha Advisors, LLC6,761$5.58M0.23%−210−3.0%Reduced
Venture Visionary Partners LLC6,740$5.56M0.19%+995+17.3%Added
Jefferies Financial Group Inc.6,672$5.51M0.05%+6,210+1,344.2%Added
MML Investors Services, LLC6,642$5.48M0.01%−406−5.8%Reduced
Deroy & Devereaux Private Investment Counsel Inc6,615$5.46M0.27%−2,819−29.9%Reduced
Schwartz Investment Counsel Inc6,600$5.45M0.18%00.0%Unchanged
Ameritas Investment Partners, Inc.6,599$5.45M0.17%−235−3.4%Reduced
Bain Capital Public Equity, LP6,536$5.39M3.42%+6,536New
Monument Capital Management6,518$5.38M1.34%−249−3.7%Reduced
Captrust Financial Advisors6,401$5.28M0.01%+965+17.8%Added
Illinois Municipal Retirement Fund6,400$5.28M0.07%+835+15.0%Added
Diversify Wealth Management, LLC5,387$5.27M0.30%−1,201−18.2%Reduced
Strategic Global Advisors, LLC6,377$5.26M0.80%−110−1.7%Reduced
Prosperitas Financial LLC6,370$5.26M2.18%+153+2.5%Added
Point72 (DIFC) Ltd6,320$5.22M0.36%+6,320New
Consolidated Planning Corp6,309$5.21M0.55%−910−12.6%Reduced
Quantinno Capital Management LP6,174$5.10M0.01%+1,934+45.6%Added
Cambridge Investment Research Advisors, Inc.6,127$5.06M0.01%−3,517−36.5%Reduced
Huntleigh Advisors, Inc.6,086$5.02M0.86%+655+12.1%Added
Pinnbrook Capital Management LP6,059$5.00M0.93%−12,764−67.8%Reduced
Horizon Investment Services, LLC6,002$4.95M1.87%−364−5.7%Reduced
Independent Advisor Alliance5,973$4.93M0.13%+110+1.9%Added
Janney Montgomery Scott LLC5,960$4.92M0.01%−472−7.3%Reduced
Bridges Investment Management Inc5,863$4.84M0.06%−2,364−28.7%Reduced
Oak Harvest Investment Services5,756$4.75M0.55%−357−5.8%Reduced
Moody National Bank Trust Division5,746$4.74M0.40%+2,750+91.8%Added
Utah Retirement Systems5,741$4.74M0.05%+3,902+212.2%Added
Point72 Asia (Singapore) Pte. Ltd.5,726$4.72M0.73%+5,726New
Rockefeller Capital Management L.P.5,691$4.70M0.01%+5,691New
Advisors Asset Management, Inc.5,675$4.68M0.08%+520+10.1%Added
PDT Partners, LLC5,518$4.55M0.29%−4,607−45.5%Reduced
Twin Tree Management, LP5,472$4.52M0.21%+5,472New
Baird Financial Group, Inc.5,463$4.51M0.01%−5,563−50.5%Reduced
Buckingham Strategic Partners4,907$4.51M0.05%+1,350+38.0%Added
Capital Insight Partners, LLC5,426$4.48M0.74%+1,414+35.2%Added
Kestra Advisory Services, LLC5,329$4.40M0.02%+850+19.0%Added
Colony Group, LLC5,331$4.38M0.01%+1,742+48.5%Added
Diversified Trust Co5,277$4.35M0.09%−208−3.8%Reduced
Vident Advisory, LLC5,120$4.22M0.04%+4,595+875.2%Added
The PNC Financial Services Group, Inc.5,084$4.20M0.00%−560−9.9%Reduced
4D Advisors, LLC5,000$4.13M2.20%−2,500−33.3%Reduced
Nomura Holdings Inc4,975$4.11M0.02%+3,922+372.5%Added
Zurich Insurance Group Ltd4,934$4.07M0.03%−3,927−44.3%Reduced
U.S. Capital Wealth Advisors, LLC4,925$4.06M0.11%+4,925New
Pictet Asset Management Holding SA4,923$4.06M0.00%−318−6.1%Reduced
Estate Counselors, LLC4,918$4.06M0.35%+4,918New
Quantessence Capital LLC4,863$4.01M1.27%+4,863New
Gallo Partners, LP4,860$4.01M3.01%−9,983−67.3%Reduced
Federation des caisses Desjardins du Quebec4,798$3.96M0.02%+2,330+94.4%Added
Merit Financial Group, LLC4,774$3.94M0.04%+431+9.9%Added
Redhawk Wealth Advisors, Inc.4,767$3.93M0.46%−250−5.0%Reduced
Pacer Advisors, Inc.4,732$3.90M0.01%+1,619+52.0%Added
VestGen Advisors, LLC4,522$3.73M0.12%+4,522New
Cardinal Point Capital Management, ULC4,472$3.69M0.26%−3,978−47.1%Reduced
Ritholtz Wealth Management4,456$3.68M0.07%−14−0.3%Reduced
Integrated Wealth Concepts LLC4,445$3.67M0.03%+811+22.3%Added
Mirae Asset Global Investments Co., Ltd.4,429$3.65M0.01%+4,256+2,460.1%Added
Secure Asset Management, LLC4,380$3.65M0.60%−1,422−24.5%Reduced