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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
Panagora Asset Management Inc143,203$29.5M0.16%−3,472−2.4%Reduced
Hennessy Advisors Inc146,600$30.2M1.52%+146,600New
Westwood Holdings Group Inc.151,989$31.3M0.26%−181,252−54.4%Reduced
Putnam Investments LLC164,737$33.9M0.04%+16,179+10.9%Added
Royal London Asset Management Ltd165,262$34.0M0.10%+128,290+347.0%Added
Artemis Investment Management LLP173,530$35.7M0.52%−2,746−1.6%Reduced
Barclays PLC176,321$36.3M0.02%+151,338+605.8%Added
Bank of America Corp180,016$37.0M0.00%+123,977+221.2%Added
First Trust Advisors LP183,317$37.7M0.04%+38,955+27.0%Added
Driehaus Capital Management LLC192,981$39.7M0.48%−35,498−15.5%Reduced
Boston Trust Walden Corp202,526$41.7M0.31%+1,834+0.9%Added
Janus Henderson Group PLC215,562$44.3M0.03%−17,745−7.6%Reduced
Systematic Financial Management LP239,048$49.2M1.46%−28,001−10.5%Reduced
Lord, Abbett & Co. LLC251,532$51.7M0.18%−85,854−25.4%Reduced
Capital Research Global Investors256,244$52.7M0.01%−42,337−14.2%Reduced
Wellington Management Group LLP257,676$53.0M0.01%−52,737−17.0%Reduced
Congress Asset Management Co262,434$54.0M0.42%+8,331+3.3%Added
Goldman Sachs Group Inc269,068$55.3M0.01%+114,115+73.6%Added
GFI Investment Counsel Ltd.269,222$55.4M7.66%−5,291−1.9%Reduced
Principal Financial Group Inc269,443$55.4M0.04%−84,843−23.9%Reduced
Capital International Investors270,110$55.6M0.01%00.0%Unchanged
Millennium Management LLC277,011$57.0M0.05%+212,268+327.9%Added
Neumeier Poma Investment Counsel LLC313,636$64.5M5.75%−71,605−18.6%Reduced
Bank of New York Mellon Corp370,310$76.2M0.02%+18,779+5.3%Added
GW&K Investment Management, LLC388,976$80.0M0.75%−15,213−3.8%Reduced
Norges Bank395,289$81.3M0.01%+25,098+6.8%Added
Morgan Stanley405,809$83.5M0.01%−42,078−9.4%Reduced
Federated Hermes, Inc.422,082$86.8M0.22%−3,758−0.9%Reduced
Westfield Capital Management Co LP426,570$87.7M0.51%+426,570New
Charles Schwab Investment Management Inc467,865$96.2M0.02%−8,891−1.9%Reduced
Price T Rowe Associates Inc475,830$97.9M0.01%−13,179−2.7%Reduced
Northern Trust Corp480,322$98.8M0.02%+80,877+20.2%Added
Hood River Capital Management LLC482,170$99.2M2.73%−2270.0%Reduced
Nuveen Asset Management, LLC533,741$109.8M0.04%−15,808−2.9%Reduced
Alliancebernstein L.P.609,899$125.4M0.05%−102,289−14.4%Reduced
JPMorgan Chase & Co675,828$139.0M0.01%+404,536+149.1%Added
FMR LLC716,701$147.4M0.01%+145,923+25.6%Added
Geode Capital Management, LLC826,975$170.1M0.02%+53,231+6.9%Added
Dimensional Fund Advisors LP899,561$185.0M0.05%−118,201−11.6%Reduced
Fuller & Thaler Asset Management, Inc.1,069,217$219.9M1.11%+425,322+66.1%Added
Baillie Gifford & Co1,146,299$235.8M0.19%−41,621−3.5%Reduced
State Street Corp1,216,145$250.1M0.01%−50,580−4.0%Reduced
Invesco Ltd.1,254,982$258.1M0.06%−62,164−4.7%Reduced
Capital World Investors1,701,855$350.0M0.06%−63,746−3.6%Reduced
Vanguard Group Inc3,914,102$805.0M0.02%−363,567−8.5%Reduced
BlackRock Inc.4,807,189$988.7M0.03%−1,292,202−21.2%Reduced
Aware Super Pty Ltd as trustee of Aware Super30,572––+30,572New
Public Sector Pension Investment Board0$00.00%−44,211−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−26,701−100.0%Sold out
Illinois Municipal Retirement Fund0$00.00%−20,139−100.0%Sold out
Maryland State Retirement & Pension System0$00.00%−13,175−100.0%Sold out
Jacobs Levy Equity Management, Inc0$00.00%−10,133−100.0%Sold out
TD Asset Management Inc0$00.00%−9,700−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−9,232−100.0%Sold out
Nations Financial Group Inc,0$00.00%−7,265−100.0%Sold out
Everence Capital Management Inc0$00.00%−5,320−100.0%Sold out
Cambridge Investment Research Advisors, Inc.0$00.00%−4,890−100.0%Sold out
XTX Topco Ltd0$00.00%−4,792−100.0%Sold out
Amundi0$00.00%−4,488−100.0%Sold out
Dynamic Technology Lab Private Ltd0$00.00%−4,180−100.0%Sold out
Prospera Financial Services Inc0$00.00%−3,874−100.0%Sold out
Nebula Research & Development LLC0$00.00%−3,413−100.0%Sold out
Cantor Fitzgerald, L. P.0$00.00%−3,113−100.0%Sold out
Acadian Asset Management LLC0$00.00%−3,072−100.0%Sold out
Lloyd Advisory Services, LLC.0$00.00%−2,721−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−1,884−100.0%Sold out
Mirabella Financial Services LLP0$00.00%−1,774−100.0%Sold out
Inceptionr LLC0$00.00%−1,628−100.0%Sold out
Healthcare of Ontario Pension Plan Trust Fund0$00.00%−1,600−100.0%Sold out
Kaizen Financial Strategies0$00.00%−1,550−100.0%Sold out
Seven Eight Capital, LP0$00.00%−1,548−100.0%Sold out
Sanders Morris Harris LLC0$00.00%−1,500−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−1,449−100.0%Sold out
Glenview Trust Co0$00.00%−1,213−100.0%Sold out
Veriti Management LLC0$00.00%−1,211−100.0%Sold out
Wealth Advisory Solutions, LLC0$00.00%−1,186−100.0%Sold out
VisionPoint Advisory Group, LLC0$00.00%−349−100.0%Sold out
Simplex Trading, LLC0$00.00%−244−100.0%Sold out
NVWM, LLC0$00.00%−90−100.0%Sold out
Atlantic Trust, LLC0$00.00%−72−100.0%Sold out
GoalVest Advisory LLC0$00.00%−62−100.0%Sold out
Front Row Advisors LLC0$00.00%−49−100.0%Sold out
Quarry LP0$00.00%−48−100.0%Sold out
Baker Avenue Asset Management, LP0$00.00%−46−100.0%Sold out
Cary Street Partner Investment Advisory LLC0$00.00%−43−100.0%Sold out
RFP Financial Group LLC0$00.00%−19−100.0%Sold out
Milestone Investment Advisors LLC0$00.00%−16−100.0%Sold out
USA Financial Portformulas Corp0$00.00%−14−100.0%Sold out
Meeder Asset Management Inc0$00.00%−11−100.0%Sold out
Crewe Advisors LLC0$00.00%−1−100.0%Sold out
First Republic Investment Management, Inc.––––Not filed
Pathstone Family Office, LLC––––Not filed
Advisor Partners II, LLC––––Not filed
BTC Capital Management, Inc.––––Not filed
Key Bridge Compliance, LLC––––Not filed
Steward Financial Group LLC––––Not filed
Foster Dykema Cabot & Co Inc––––Not filed