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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 2023

Institutional positions in Comfort Systems USA Inc as of Dec 31, 2023. 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
447
+54 vs. Q3 2023
Shares held
34.9M
−76.6K (−0.2%) vs. Q3 2023
Total value
$7.16B
+$1.20B (+20.1%) vs. Q3 2023
New holders
97
129 more added
Sold out
43
182 more reduced

7 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2023: 447 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 2023: $7.16B
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 2023

Shares, value and share of portfolio for each institution holding Comfort Systems USA Inc; share changes are against Q3 2023.

Institutions holding FIX in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Twinbeech Capital LP4,083$839.8K0.01%+4,083New
Private Advisory Group LLC4,129$849.2K0.15%−187−4.3%Reduced
Guggenheim Capital LLC4,213$866.5K0.01%+2,276+117.5%Added
Penserra Capital Management LLC4,226$869.0K0.02%+4,226New
Pictet Asset Management Holding SA4,280$880.3K0.00%00.0%Unchanged
Optimum Investment Advisors4,344$893.4K0.45%+325+8.1%Added
AXS Investments LLC4,380$900.8K0.22%+2,880+192.0%Added
Edgestream Partners, L.P.4,577$941.4K0.07%+1,987+76.7%Added
Alliance Wealth Advisors, LLC4,714$969.5K0.33%+145+3.2%Added
Raymond James Financial Services Advisors, Inc.4,895$1.01M0.00%+2,780+131.4%Added
Toroso Investments, LLC5,074$1.04M0.02%+41+0.8%Added
Envestnet Portfolio Solutions, Inc.5,118$1.05M0.00%−422−7.6%Reduced
Xponance, Inc.5,172$1.06M0.01%+3,088+148.2%Added
Vestcor Inc5,261$1.08M0.04%+2,687+104.4%Added
Pitcairn Co5,277$1.09M0.08%−579−9.9%Reduced
North Star Investment Management Corp.5,600$1.15M0.09%−2,304−29.1%Reduced
Ritholtz Wealth Management5,723$1.18M0.05%+43+0.8%Added
Redhawk Wealth Advisors, Inc.5,804$1.19M0.23%+5,804New
Jackson Creek Investment Advisors LLC5,971$1.23M0.47%+10.0%Added
Diversified Trust Co6,030$1.24M0.04%+455+8.2%Added
Park Avenue Securities LLC6,035$1.24M0.02%+576+10.6%Added
M&T Bank Corp6,123$1.26M0.00%−1,501−19.7%Reduced
Handelsbanken Fonder AB6,237$1.28M0.01%00.0%Unchanged
Fox Run Management, L.L.C.6,605$1.36M0.35%+6,605New
Mariner, LLC6,751$1.39M0.00%+1,165+20.9%Added
Greenwood Capital Associates LLC6,768$1.39M0.18%−198−2.8%Reduced
Laurus Investment Counsel Inc.5,270$1.44M0.52%−520−9.0%Reduced
Johnson Investment Counsel Inc7,005$1.44M0.02%00.0%Unchanged
Pacer Advisors, Inc.7,115$1.46M0.00%+7,115New
Federation des caisses Desjardins du Quebec7,257$1.49M0.01%00.0%Unchanged
US Bancorp7,372$1.52M0.00%−1,411−16.1%Reduced
New Mexico Educational Retirement Board7,400$1.52M0.06%+7,400New
The PNC Financial Services Group, Inc.7,436$1.53M0.00%−991−11.8%Reduced
Cinctive Capital Management LP7,502$1.54M0.11%+7,502New
ClariVest Asset Management LLC7,650$1.57M0.09%−2,157−22.0%Reduced
Centiva Capital, LP7,673$1.58M0.10%+6,497+552.5%Added
Oppenheimer Asset Management Inc.7,678$1.58M0.02%−25−0.3%Reduced
Bridgewater Associates, LP7,854$1.62M0.01%+632+8.8%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys7,881$1.62M0.01%−16,033−67.0%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)7,882$1.62M0.01%+461+6.2%Added
Northwestern Mutual Investment Management Company, LLC7,945$1.63M0.04%+7,945New
Pathstone Holdings, LLC7,949$1.63M0.01%+7,949New
Tower Research Capital LLC (TRC)8,209$1.69M0.02%+4,773+138.9%Added
LRT Capital Management, LLC8,214$1.69M1.59%−7,678−48.3%Reduced
Horizon Investment Services, LLC8,276$1.70M0.92%+962+13.2%Added
Meritage Portfolio Management8,437$1.74M0.11%+448+5.6%Added
Freedom Day Solutions, LLC8,454$1.74M0.68%+8,454New
State of Michigan Retirement System8,600$1.77M0.01%+8,600New
Citigroup Inc8,799$1.81M0.00%−7,945−47.4%Reduced
Thrivent Financial for Lutherans8,922$1.83M0.00%−23,800−72.7%Reduced
Hunter Associates Investment Management LLC9,230$1.90M0.35%−450−4.6%Reduced
Saturna Capital CORP9,559$1.97M0.03%−55−0.6%Reduced
Public Employees Retirement System of Ohio9,675$1.99M0.01%−10,135−51.2%Reduced
STRS Ohio9,700$1.99M0.01%−400−4.0%Reduced
Balyasny Asset Management LLC9,769$2.01M0.01%−128,202−92.9%Reduced
Crown Advisors Management, Inc.10,000$2.06M1.41%+10,000New
Arizona State Retirement System9,999$2.06M0.02%−185−1.8%Reduced
Oregon Public Employees Retirement Fund10,100$2.08M0.04%−537−5.0%Reduced
Two Sigma Advisers, LP10,100$2.08M0.00%+2,100+26.3%Added
State Board of Administration of Florida Retirement System10,115$2.08M0.00%00.0%Unchanged
Van Eck Associates Corp10,152$2.09M0.00%+2,582+34.1%Added
Louisiana State Employees Retirement System10,200$2.10M0.04%−8,000−44.0%Reduced
Hiddenite Capital Partners LP10,350$2.13M3.13%−3,450−25.0%Reduced
Franklin Resources Inc10,572$2.17M0.00%−50.0%Reduced
Naples Money Management LLC11,000$2.26M2.12%+11,000New
Creative Planning11,208$2.31M0.00%+1,736+18.3%Added
Advisor Group Holdings, Inc.11,300$2.32M0.00%−552−4.7%Reduced
Two Sigma Investments, LP11,400$2.34M0.01%00.0%Unchanged
Trexquant Investment LP11,408$2.35M0.05%+3,063+36.7%Added
Ameritas Investment Partners, Inc.11,472$2.36M0.09%+7,921+223.1%Added
Legato Capital Management LLC11,909$2.45M0.32%−1,395−10.5%Reduced
Chartwell Investment Partners, LLC11,930$2.45M0.09%+1,767+17.4%Added
HSBC Holdings PLC11,906$2.46M0.00%−5,760−32.6%Reduced
Renaissance Group LLC12,823$2.64M0.11%+775+6.4%Added
Teacher Retirement System of Texas14,041$2.89M0.02%−6,746−32.5%Reduced
Point72 Middle East FZE14,080$2.90M0.20%+2,704+23.8%Added
Voya Investment Management LLC14,081$2.90M0.00%−3,625−20.5%Reduced
DekaBank Deutsche Girozentrale14,148$2.91M0.01%−73−0.5%Reduced
O'Shaughnessy Asset Management, LLC14,404$2.96M0.04%−59−0.4%Reduced
Natixis Advisors, L.P.15,033$3.09M0.01%−4,829−24.3%Reduced
Munro Partners15,130$3.11M0.14%+2,820+22.9%Added
LPL Financial LLC15,161$3.12M0.00%−3,635−19.3%Reduced
Empowered Funds, LLC15,682$3.23M0.08%−904−5.5%Reduced
Chase Investment Counsel Corp15,708$3.23M1.43%−306−1.9%Reduced
Entropy Technologies, LP16,045$3.30M0.61%+16,045New
Peterson Wealth Services16,114$3.31M1.42%−160−1.0%Reduced
Hilltop Holdings Inc.16,175$3.33M0.38%−1,358−7.7%Reduced
D. E. Shaw & Co., Inc.16,338$3.36M0.00%+11,110+212.5%Added
Bank of Montreal16,256$3.39M0.00%+7,325+82.0%Added
Seizert Capital Partners, LLC16,523$3.40M0.17%−9,310−36.0%Reduced
Allianz Asset Management GmbH16,553$3.40M0.01%−315−1.9%Reduced
Mirae Asset Global Investments Co., Ltd.16,701$3.43M0.01%−118−0.7%Reduced
Anderson Hoagland & Co17,101$3.46M0.42%+26+0.2%Added
Yousif Capital Management, LLC17,062$3.51M0.04%−1,367−7.4%Reduced
MML Investors Services, LLC17,272$3.55M0.02%+2,085+13.7%Added
Oberweis Asset Management Inc17,700$3.64M0.34%+3,700+26.4%Added
Ensign Peak Advisors, Inc17,798$3.66M0.01%−7,152−28.7%Reduced
Engineers Gate Manager LP17,923$3.69M0.11%+14,537+429.3%Added
Dorchester Wealth Management Co18,076$3.72M0.69%−773−4.1%Reduced
Pallas Capital Advisors LLC18,199$3.74M0.20%+757+4.3%Added