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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, Q1 2026

Institutional positions in Comfort Systems USA Inc as of Mar 31, 2026. 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
1,206
+178 vs. Q4 2025
Shares held
32.5M
+4.08M (+14.3%) vs. Q4 2025
Total value
$44.6B
+$18.1B (+68.0%) vs. Q4 2025
New holders
247
449 more added
Sold out
69
402 more reduced

15 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2026: 1,206 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 heldQ1 2026: $44.6B
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, Q1 2026

Shares, value and share of portfolio for each institution holding Comfort Systems USA Inc; share changes are against Q4 2025.

Institutions holding FIX in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Daiwa Securities Group Inc.13,924$19.2M0.06%+1,567+12.7%Added
Swiss Life Asset Management Ltd13,793$19.0M0.09%+515+3.9%Added
Kovitz Investment Group Partners, LLC13,778$19.0M0.44%+13,357+3,172.7%Added
Mirae Asset Global Investments Co., Ltd.13,646$18.8M0.05%+2,610+23.6%Added
Public Employees Retirement System of Ohio13,505$18.6M0.06%−852−5.9%Reduced
Markel Group Inc.SuperinvestorMarkel Group13,000$17.9M0.15%00.0%Unchanged
Crown Advisors Management, Inc.13,000$17.9M11.90%−3,000−18.8%Reduced
State of Tennessee, Treasury Department12,995$17.9M0.06%+551+4.4%Added
Tredje AP-fonden12,917$17.8M0.10%+12,917New
Quantinno Capital Management LP12,879$17.8M0.03%+2,106+19.5%Added
DekaBank Deutsche Girozentrale12,523$17.6M0.03%00.0%Unchanged
Trexquant Investment LP12,682$17.5M0.13%−7,097−35.9%Reduced
Nisa Investment Advisors, LLC12,298$17.0M0.06%+64+0.5%Added
Nordea Investment Management AB12,685$16.8M0.02%+9,074+251.3%Added
Nomura Asset Management Co Ltd12,132$16.7M0.04%+334+2.8%Added
State of New Jersey Common Pension Fund D12,100$16.7M0.06%+107+0.9%Added
Natixis Advisors, L.P.12,093$16.7M0.02%+1,345+12.5%Added
Cowa, LLC12,014$16.6M4.47%−1,695−12.4%Reduced
Goodlander Investment Management, LLC12,000$16.5M5.72%+12,000New
Soros Capital Management LLC11,823$16.3M7.09%+5,563+88.9%Added
Alyeska Investment Group, L.P.11,819$16.3M0.05%+11,819New
VestGen Advisors, LLC8,010$16.2M0.45%+559+7.5%Added
O'Shaughnessy Asset Management, LLC11,530$15.9M0.08%−71−0.6%Reduced
Moran Wealth Management, LLC11,354$15.7M0.48%−17,003−60.0%Reduced
DnB Asset Management AS11,325$15.6M0.06%+1,229+12.2%Added
La Banque Postale Asset Management SA10,855$15.0M0.20%+10,855New
Resona Asset Management Co.,Ltd.10,937$14.9M0.07%+199+1.9%Added
Waratah Capital Advisors Ltd.10,729$14.8M1.33%−19,432−64.4%Reduced
Investment Management Corp of Ontario10,478$14.4M0.19%+8,064+334.1%Added
CIBC Bancorp USA Inc.10,296$14.2M0.02%+10,296New
PensionDanmark Pensionsforsikringsaktieselskab10,286$14.2M0.14%+170+1.7%Added
Thames Capital Management LLC10,109$13.9M2.50%+836+9.0%Added
Baird Financial Group, Inc.10,101$13.9M0.02%+4,612+84.0%Added
Summit Partners Public Asset Management, LLC10,000$13.8M0.64%−10,000−50.0%Reduced
State of Michigan Retirement System10,000$13.8M0.07%00.0%Unchanged
Retirement Systems of Alabama9,899$13.7M0.05%−13−0.1%Reduced
MetLife Investment Management9,790$13.5M0.07%−320−3.2%Reduced
Natixis9,754$13.5M0.05%+1,648+20.3%Added
Verition Fund Management LLC9,589$13.2M0.13%−10,955−53.3%Reduced
Arizona State Retirement System9,585$13.2M0.08%−82−0.8%Reduced
Czech National Bank9,585$13.2M0.09%+327+3.5%Added
JGP Wealth Management, LLC9,504$13.1M1.36%+134+1.4%Added
Xponance, Inc.9,416$13.0M0.09%+818+9.5%Added
Jones Financial Companies LLLP9,165$12.5M0.01%+6,393+230.6%Added
Dai-Ichi Life Insurance Company, Ltd9,011$12.4M0.36%−513−5.4%Reduced
Susquehanna International Group, LLP8,972$12.4M0.02%−10,497−53.9%Reduced
CBOE Vest Financial, LLC8,840$12.2M0.15%−1,725−16.3%Reduced
Whittier Trust Co8,458$12.1M0.14%+8,458New
Transamerica Financial Advisors, Inc.8,788$12.1M1.03%−498−5.4%Reduced
Van Eck Associates Corp8,755$12.1M0.01%+206+2.4%Added
California First Leasing Corp8,720$12.0M3.85%00.0%Unchanged
Eventide Asset Management, LLC8,807$12.0M0.20%+464+5.6%Added
Vinva Investment Management Ltd9,357$11.9M0.15%+4,010+75.0%Added
CIBC Asset Management Inc8,538$11.8M0.03%+224+2.7%Added
Walleye Capital LLC8,479$11.7M0.07%+8,121+2,268.4%Added
Engle Capital Management, L.P.8,400$11.6M3.95%+900+12.0%Added
Two Sigma Investments, LP8,394$11.6M0.01%+4,815+134.5%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys8,198$11.3M0.06%+12+0.1%Added
Advisors Asset Management, Inc.8,196$11.3M0.19%+393+5.0%Added
Pathstone Holdings, LLC8,101$11.2M0.04%+20.0%Added
Lansforsakringar Fondforvaltning AB (publ)7,963$11.0M0.06%+7,963New
Aquatic Capital Management LLC7,947$11.0M0.31%+1,912+31.7%Added
Neumeier Poma Investment Counsel LLC7,661$10.6M0.87%−6,940−47.5%Reduced
Amalgamated Bank7,599$10.5M0.08%−284−3.6%Reduced
HighTower Advisors, LLC7,555$10.5M0.01%+144+1.9%Added
Lighthouse Investment Partners, LLC7,594$10.5M0.39%−14,404−65.5%Reduced
Dividend Assets Capital, LLC7,566$10.4M2.08%−3,268−30.2%Reduced
Banco Santander, S.A.7,535$10.4M0.08%+642+9.3%Added
Janney Montgomery Scott LLC7,533$10.4M0.03%+822+12.2%Added
PBU - The Pension Fund of Early Childhood & Youth Educators7,525$10.4M0.16%+7,525New
Diversify Wealth Management, LLC5,994$10.3M0.18%+1,164+24.1%Added
Ci Investments Inc.7,467$10.3M0.05%−3,933−34.5%Reduced
Prudential PLC7,444$10.3M0.08%+27+0.4%Added
Huntleigh Advisors, Inc.7,443$10.3M1.75%+648+9.5%Added
IFM Investors Pty Ltd7,387$10.2M0.08%+7,387New
Jump Financial, LLC7,333$10.1M0.15%+7,108+3,159.1%Added
AdvisorShares Investments LLC7,282$10.0M1.83%−801−9.9%Reduced
Cambridge Investment Research Advisors, Inc.7,280$10.0M0.03%+1,104+17.9%Added
Hedeker Wealth, LLC7,129$9.83M2.08%−6−0.1%Reduced
Engineers Gate Manager LP7,049$9.72M0.12%+4,023+132.9%Added
Benchstone Capital Management LP6,996$9.65M1.12%+6,996New
Argent Capital Management LLC6,985$9.63M0.30%+1,202+20.8%Added
South Dakota Investment Council6,930$9.56M0.18%−3,647−34.5%Reduced
Woodline Partners LP6,897$9.51M0.04%+891+14.8%Added
Aventail Capital Group, LP6,842$9.44M0.46%−31−0.5%Reduced
Merit Financial Group, LLC6,819$9.40M0.07%+873+14.7%Added
Kornitzer Capital Management Inc6,800$9.38M0.20%−3,800−35.8%Reduced
Illinois Municipal Retirement Fund6,797$9.37M0.12%+384+6.0%Added
Peregrine Asset Advisers, Inc.6,783$9.35M2.52%−647−8.7%Reduced
Ilmarinen Mutual Pension Insurance Co6,595$9.09M0.07%+6,595New
Brown Advisory Inc6,582$9.08M0.01%−75−1.1%Reduced
Mountain Pacific Investment Advisers Inc6,556$9.04M1.55%−1,184−15.3%Reduced
Independent Advisor Alliance6,503$8.97M0.10%+439+7.2%Added
Penobscot Investment Management Company, Inc.6,498$8.96M0.70%+343+5.6%Added
Entropy Technologies, LP6,454$8.90M0.41%+2,049+46.5%Added
Spire Wealth Management6,450$8.89M0.30%+1,060+19.7%Added
Beacon Harbor Wealth Advisors, Inc.6,444$8.89M1.86%−230−3.4%Reduced
Private Advisor Group, LLC6,240$8.61M0.04%−1,512−19.5%Reduced
Kestra Advisory Services, LLC6,221$8.58M0.03%+534+9.4%Added
Commonwealth Equity Services, LLC6,116$8.43M0.01%+750+14.0%Added