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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 2024

Institutional positions in Comfort Systems USA Inc as of Mar 31, 2024. 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
505
+61 vs. Q4 2023
Shares held
34.7M
+52.9K (+0.2%) vs. Q4 2023
Total value
$11.0B
+$3.89B (+54.5%) vs. Q4 2023
New holders
109
124 more added
Sold out
48
225 more reduced

3 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2023: 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 2024: 505 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 2024: $11.0B
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 2024

Shares, value and share of portfolio for each institution holding Comfort Systems USA Inc; share changes are against Q4 2023.

Institutions holding FIX in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Man Group plc31,033$9.86M0.03%+379+1.2%Added
RE Advisers Corp30,788$9.78M0.23%−11,200−26.7%Reduced
American Century Companies Inc29,372$9.33M0.01%−27,910−48.7%Reduced
Stansberry Asset Management, LLC27,768$8.82M1.19%−20,655−42.7%Reduced
SEI Investments Co27,548$8.75M0.01%+912+3.4%Added
TownSquare Capital, LLC26,243$8.34M0.12%−680−2.5%Reduced
New York State Common Retirement Fund26,151$8.31M0.01%−6,900−20.9%Reduced
State of Tennessee, Treasury Department26,018$8.27M0.03%−462−1.7%Reduced
Kennedy Capital Management, Inc.24,473$7.78M0.16%−12,167−33.2%Reduced
Lisanti Capital Growth, LLC24,235$7.70M1.88%+130+0.5%Added
Great West Life Assurance Co23,896$7.59M0.02%+3,059+14.7%Added
Bridge City Capital, LLC23,818$7.57M2.76%−9,049−27.5%Reduced
Ci Investments Inc.22,680$7.21M0.03%−9,679−29.9%Reduced
New York State Teachers Retirement System22,189$7.05M0.01%00.0%Unchanged
Renaissance Technologies LLC22,000$6.99M0.01%−14,600−39.9%Reduced
Royce & Associates LP21,767$6.92M0.06%−40,915−65.3%Reduced
Castleark Management LLC21,710$6.90M0.29%−2,890−11.7%Reduced
Nicholas Company, Inc.21,507$6.83M0.11%−12,119−36.0%Reduced
Danske Bank A/S21,413$6.80M0.02%+21,413New
Mutual of America Capital Management LLC21,218$6.74M0.07%−853−3.9%Reduced
Balyasny Asset Management LLC21,162$6.72M0.02%+11,393+116.6%Added
State of New Jersey Common Pension Fund D20,516$6.52M0.02%00.0%Unchanged
Tudor Investment Corp Et Al20,514$6.52M0.08%+20,514New
Teacher Retirement System of Texas20,381$6.47M0.04%+6,340+45.2%Added
Point72 Hong Kong Ltd20,250$6.43M0.32%+18,050+820.5%Added
Stifel Financial Corp19,903$6.32M0.01%−1,056−5.0%Reduced
Oberweis Asset Management Inc19,800$6.29M0.45%+2,100+11.9%Added
Chartwell Investment Partners, LLC19,614$6.23M0.22%+7,684+64.4%Added
Brinker Capital Investments, LLC19,305$6.13M0.07%−4,572−19.1%Reduced
Orion Portfolio Solutions, LLC19,305$6.13M0.07%−4,572−19.1%Reduced
Munro Partners19,245$6.11M0.22%+4,115+27.2%Added
Nisa Investment Advisors, LLC19,132$6.08M0.04%−7,491−28.1%Reduced
Amalgamated Bank18,663$5.93M0.05%−4,039−17.8%Reduced
Premier Fund Managers Ltd18,574$5.90M0.23%−14,064−43.1%Reduced
Pallas Capital Advisors LLC18,322$5.82M0.24%+123+0.7%Added
Canada Pension Plan Investment Board18,300$5.81M0.01%+14,800+422.9%Added
EAM Investors, LLC18,129$5.76M0.91%−1,810−9.1%Reduced
Aubrey Capital Management Ltd20,000$5.50M1.95%+400+2.0%Added
Guggenheim Capital LLC16,856$5.36M0.04%+12,643+300.1%Added
Algert Global LLC16,823$5.34M0.21%−5,910−26.0%Reduced
Seizert Capital Partners, LLC16,783$5.33M0.25%+260+1.6%Added
Moody Aldrich Partners LLC16,766$5.33M0.91%−5,463−24.6%Reduced
Teachers Retirement System of the State of Kentucky16,629$5.28M0.05%−3,087−15.7%Reduced
Squarepoint Ops LLC16,457$5.23M0.02%−9,819−37.4%Reduced
Yousif Capital Management, LLC16,292$5.18M0.06%−770−4.5%Reduced
Redwood Investments, LLC16,010$5.01M1.47%−6,191−27.9%Reduced
Pathstone Holdings, LLC15,444$4.91M0.02%+7,495+94.3%Added
EAM Global Investors LLC15,021$4.77M1.10%−4,274−22.2%Reduced
Anderson Hoagland & Co15,489$4.70M0.53%−1,612−9.4%Reduced
Aptus Capital Advisors, LLC14,697$4.67M0.10%−4,473−23.3%Reduced
Navellier & Associates Inc14,479$4.60M0.57%+10,414+256.2%Added
Citigroup Inc14,424$4.58M0.00%+5,625+63.9%Added
Catalyst Funds Management Pty Ltd14,400$4.58M1.28%+14,400New
HighTower Advisors, LLC14,041$4.48M0.01%−6,478−31.6%Reduced
MML Investors Services, LLC13,939$4.43M0.02%−3,333−19.3%Reduced
Peterson Wealth Services13,938$4.43M1.61%−2,176−13.5%Reduced
Van Eck Associates Corp13,858$4.40M0.01%+3,706+36.5%Added
O'Shaughnessy Asset Management, LLC13,771$4.38M0.05%−633−4.4%Reduced
Ensign Peak Advisors, Inc13,709$4.36M0.01%−4,089−23.0%Reduced
Natixis Advisors, L.P.13,646$4.33M0.01%−1,387−9.2%Reduced
Empowered Funds, LLC13,231$4.20M0.08%−2,451−15.6%Reduced
Markel Group Inc.SuperinvestorMarkel Group13,000$4.13M0.04%+12,000+1,200.0%Added
Creative Planning12,952$4.12M0.00%+1,744+15.6%Added
Prudential PLC12,943$4.11M0.03%−19,087−59.6%Reduced
Jane Street Group, LLC12,938$4.11M0.01%−34,587−72.8%Reduced
Brown Advisory Inc12,489$3.97M0.01%−6,516−34.3%Reduced
Renaissance Group LLC12,483$3.97M0.15%−340−2.7%Reduced
DekaBank Deutsche Girozentrale12,523$3.95M0.01%−1,625−11.5%Reduced
Cerity Partners LLC12,347$3.92M0.01%+11,082+876.0%Added
Voya Investment Management LLC11,485$3.65M0.00%−2,596−18.4%Reduced
Ameritas Investment Partners, Inc.11,419$3.63M0.12%−53−0.5%Reduced
Penserra Capital Management LLC10,672$3.39M0.04%+6,446+152.5%Added
Naples Money Management LLC10,600$3.37M3.36%−400−3.6%Reduced
Chase Investment Counsel Corp10,461$3.32M1.24%−5,247−33.4%Reduced
LPL Financial LLC10,385$3.30M0.00%−4,776−31.5%Reduced
Dorchester Wealth Management Co10,205$3.24M0.58%−7,871−43.5%Reduced
Louisiana State Employees Retirement System10,200$3.24M0.06%00.0%Unchanged
Dynamic Technology Lab Private Ltd10,090$3.21M0.34%+10,090New
Crown Advisors Management, Inc.10,000$3.18M1.92%00.0%Unchanged
Arizona State Retirement System9,815$3.12M0.02%−184−1.8%Reduced
Bank of Montreal9,657$3.08M0.00%−6,599−40.6%Reduced
Legato Capital Management LLC9,627$3.06M0.37%−2,282−19.2%Reduced
Engineers Gate Manager LP9,253$2.94M0.08%−8,670−48.4%Reduced
Gotham Asset Management, LLC9,210$2.93M0.04%−10,433−53.1%Reduced
Pacer Advisors, Inc.9,062$2.88M0.01%+1,947+27.4%Added
Thrivent Financial for Lutherans8,924$2.83M0.01%+20.0%Added
Oregon Public Employees Retirement Fund8,832$2.81M0.06%−1,268−12.6%Reduced
State of Michigan Retirement System8,700$2.76M0.01%+100+1.2%Added
State of Wisconsin Investment Board8,637$2.74M0.01%+5,245+154.6%Added
Freedom Day Solutions, LLC8,552$2.72M0.96%+98+1.2%Added
Two Sigma Advisers, LP8,200$2.61M0.01%−1,900−18.8%Reduced
Hilltop Holdings Inc.8,080$2.57M0.29%−8,095−50.0%Reduced
Saturna Capital CORP8,059$2.56M0.04%−1,500−15.7%Reduced
Hunter Associates Investment Management LLC7,955$2.53M0.43%−1,275−13.8%Reduced
Northwestern Mutual Investment Management Company, LLC7,943$2.52M0.07%−20.0%Reduced
STRS Ohio7,900$2.51M0.01%−1,800−18.6%Reduced
Commonwealth of Pennsylvania Public School Empls Retrmt Sys7,877$2.50M0.02%−4−0.1%Reduced
Susquehanna International Group, LLP7,696$2.45M0.00%−28,986−79.0%Reduced
ClariVest Asset Management LLC7,663$2.43M0.25%+13+0.2%Added
Handelsbanken Fonder AB7,637$2.43M0.01%+1,400+22.4%Added