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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
BlackRock Inc.4,807,189$988.7M0.03%−1,292,202−21.2%Reduced
Vanguard Group Inc3,914,102$805.0M0.02%−363,567−8.5%Reduced
Capital World Investors1,701,855$350.0M0.06%−63,746−3.6%Reduced
Invesco Ltd.1,254,982$258.1M0.06%−62,164−4.7%Reduced
State Street Corp1,216,145$250.1M0.01%−50,580−4.0%Reduced
Baillie Gifford & Co1,146,299$235.8M0.19%−41,621−3.5%Reduced
Fuller & Thaler Asset Management, Inc.1,069,217$219.9M1.11%+425,322+66.1%Added
Dimensional Fund Advisors LP899,561$185.0M0.05%−118,201−11.6%Reduced
Geode Capital Management, LLC826,975$170.1M0.02%+53,231+6.9%Added
FMR LLC716,701$147.4M0.01%+145,923+25.6%Added
JPMorgan Chase & Co675,828$139.0M0.01%+404,536+149.1%Added
Alliancebernstein L.P.609,899$125.4M0.05%−102,289−14.4%Reduced
Nuveen Asset Management, LLC533,741$109.8M0.04%−15,808−2.9%Reduced
Hood River Capital Management LLC482,170$99.2M2.73%−2270.0%Reduced
Northern Trust Corp480,322$98.8M0.02%+80,877+20.2%Added
Price T Rowe Associates Inc475,830$97.9M0.01%−13,179−2.7%Reduced
Charles Schwab Investment Management Inc467,865$96.2M0.02%−8,891−1.9%Reduced
Westfield Capital Management Co LP426,570$87.7M0.51%+426,570New
Federated Hermes, Inc.422,082$86.8M0.22%−3,758−0.9%Reduced
Morgan Stanley405,809$83.5M0.01%−42,078−9.4%Reduced
Norges Bank395,289$81.3M0.01%+25,098+6.8%Added
GW&K Investment Management, LLC388,976$80.0M0.75%−15,213−3.8%Reduced
Bank of New York Mellon Corp370,310$76.2M0.02%+18,779+5.3%Added
Neumeier Poma Investment Counsel LLC313,636$64.5M5.75%−71,605−18.6%Reduced
Millennium Management LLC277,011$57.0M0.05%+212,268+327.9%Added
Capital International Investors270,110$55.6M0.01%00.0%Unchanged
Principal Financial Group Inc269,443$55.4M0.04%−84,843−23.9%Reduced
GFI Investment Counsel Ltd.269,222$55.4M7.66%−5,291−1.9%Reduced
Goldman Sachs Group Inc269,068$55.3M0.01%+114,115+73.6%Added
Congress Asset Management Co262,434$54.0M0.42%+8,331+3.3%Added
Wellington Management Group LLP257,676$53.0M0.01%−52,737−17.0%Reduced
Capital Research Global Investors256,244$52.7M0.01%−42,337−14.2%Reduced
Lord, Abbett & Co. LLC251,532$51.7M0.18%−85,854−25.4%Reduced
Systematic Financial Management LP239,048$49.2M1.46%−28,001−10.5%Reduced
Janus Henderson Group PLC215,562$44.3M0.03%−17,745−7.6%Reduced
Boston Trust Walden Corp202,526$41.7M0.31%+1,834+0.9%Added
Driehaus Capital Management LLC192,981$39.7M0.48%−35,498−15.5%Reduced
First Trust Advisors LP183,317$37.7M0.04%+38,955+27.0%Added
Bank of America Corp180,016$37.0M0.00%+123,977+221.2%Added
Barclays PLC176,321$36.3M0.02%+151,338+605.8%Added
Artemis Investment Management LLP173,530$35.7M0.52%−2,746−1.6%Reduced
Royal London Asset Management Ltd165,262$34.0M0.10%+128,290+347.0%Added
Putnam Investments LLC164,737$33.9M0.04%+16,179+10.9%Added
Westwood Holdings Group Inc.151,989$31.3M0.26%−181,252−54.4%Reduced
Hennessy Advisors Inc146,600$30.2M1.52%+146,600New
Panagora Asset Management Inc143,203$29.5M0.16%−3,472−2.4%Reduced
Public Employees Retirement Association of Colorado138,690$28.5M0.13%−21,694−13.5%Reduced
Envestnet Asset Management Inc121,985$25.1M0.01%+190+0.2%Added
Nordea Investment Management AB119,374$24.6M0.03%−6,085−4.9%Reduced
Victory Capital Management Inc117,010$24.1M0.03%+1,448+1.3%Added
Rhumbline Advisers108,662$22.3M0.02%+6,765+6.6%Added
Swedbank AB105,000$21.6M0.04%−20,000−16.0%Reduced
Allspring Global Investments Holdings, LLC104,161$21.4M0.04%+20,787+24.9%Added
Storebrand Asset Management AS103,124$21.2M0.08%−7,097−6.4%Reduced
Tributary Capital Management, LLC101,427$20.9M1.76%−28,459−21.9%Reduced
RK Capital Management, LLC98,125$20.2M4.30%+8,440+9.4%Added
Ameriprise Financial Inc90,478$18.6M0.01%−42,536−32.0%Reduced
Truist Financial Corp88,026$18.1M0.03%+3,250+3.8%Added
Blue Grotto Capital, LLC85,819$17.7M3.86%+85,819New
HRT Financial LP85,011$17.5M0.13%+85,011New
Mountain Pacific Investment Advisers Inc78,268$16.1M1.00%+13,322+20.5%Added
Comerica Bank77,114$15.9M0.07%+55,737+260.7%Added
EULAV Asset Management75,100$15.4M0.48%+21,800+40.9%Added
Bessemer Group Inc73,033$15.0M0.03%+15,337+26.6%Added
Credit Suisse AG71,492$14.7M0.01%+24,215+51.2%Added
Swiss National Bank70,500$14.5M0.01%−8,200−10.4%Reduced
Lazard Asset Management LLC69,677$14.3M0.02%−14,617−17.3%Reduced
TimesSquare Capital Management, LLC68,670$14.1M0.21%+68,670New
Legal & General Group Plc65,670$13.5M0.00%−45,393−40.9%Reduced
American International Group, Inc.65,559$13.5M0.06%+46,108+237.0%Added
Raymond James & Associates64,985$13.4M0.01%+4,031+6.6%Added
California Public Employees Retirement System64,651$13.3M0.01%+5,376+9.1%Added
Mitsubishi UFJ Trust & Banking Corp64,500$13.3M0.03%−4,330−6.3%Reduced
Wells Fargo & Company63,509$13.1M0.00%−12,141−16.0%Reduced
Assenagon Asset Management S.A.63,475$13.1M0.04%−55,697−46.7%Reduced
Royce & Associates LP62,682$12.9M0.12%+16,422+35.5%Added
Citadel Advisors LLC59,616$12.3M0.01%+40,835+217.4%Added
American Century Companies Inc57,282$11.8M0.01%+13,774+31.7%Added
Congress Wealth Management LLC56,962$11.7M0.22%−7,607−11.8%Reduced
AXA S.A.55,136$11.3M0.04%+14,336+35.1%Added
Neuberger Berman Group LLC54,845$11.3M0.01%+20,243+58.5%Added
Segall Bryant & Hamill, LLC52,093$10.7M0.21%−24,534−32.0%Reduced
Cubist Systematic Strategies, LLC51,793$10.7M0.13%+30,722+145.8%Added
BNP Paribas Arbitrage, SA49,841$10.3M0.02%+7,067+16.5%Added
Royal Bank of Canada48,961$10.1M0.00%−4,487−8.4%Reduced
Stansberry Asset Management, LLC48,423$9.96M1.65%−1,878−3.7%Reduced
Jane Street Group, LLC47,525$9.77M0.01%+33,928+249.5%Added
Moran Wealth Management, LLC47,010$9.67M0.34%−1,370−2.8%Reduced
UBS Asset Management Americas Inc46,315$9.53M0.00%+2,083+4.7%Added
ProShare Advisors LLC46,008$9.46M0.03%−2,449−5.1%Reduced
Retirement Systems of Alabama44,731$9.20M0.04%+44,731New
Manufacturers Life Insurance Company, The42,476$8.74M0.01%+23,872+128.3%Added
RE Advisers Corp41,988$8.64M0.22%−6,600−13.6%Reduced
Deutsche Bank AG41,092$8.45M0.00%+19,713+92.2%Added
MetLife Investment Management38,100$7.84M0.06%+19,444+104.2%Added
California State Teachers Retirement System37,744$7.76M0.01%−1,702−4.3%Reduced
Susquehanna International Group, LLP36,682$7.54M0.01%+14,345+64.2%Added
Kennedy Capital Management, Inc.36,640$7.54M0.16%−2,002−5.2%Reduced
Renaissance Technologies LLC36,600$7.53M0.01%+36,600New
Los Angeles Capital Management LLC34,710$7.14M0.03%−5,929−14.6%Reduced