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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
Atomi Financial Group, Inc.980$1.35M0.04%+146+17.5%Added
Verus Capital Partners, LLC990$1.37M0.09%−307−23.7%Reduced
Sentinus, LLC995$1.37M0.12%+257+34.8%Added
Banco Bilbao Vizcaya Argentaria, S.A.1,006$1.39M0.01%+6+0.6%Added
North Dakota State Investment Board1,007$1.39M0.06%−217−17.7%Reduced
Citizens Financial Group Inc1,021$1.41M0.02%+507+98.6%Added
Livforsakringsbolaget Skandia, Omsesidigt2,019$1.41M0.06%+1,779+741.3%Added
Retireful, LLC1,033$1.42M2.01%+80+8.4%Added
Illumine Investment Management, LLC1,052$1.45M1.12%−544−34.1%Reduced
Pensionmark Financial Group, LLC1,062$1.46M0.02%−627−37.1%Reduced
Hanlon Investment Management, Inc.1,074$1.48M0.82%−13−1.2%Reduced
Jackson Creek Investment Advisors LLC1,078$1.49M0.44%−830−43.5%Reduced
PFG Advisors1,079$1.49M0.07%+16+1.5%Added
Petra Financial Advisors Inc1,080$1.49M0.92%+7+0.7%Added
Hantz Financial Services, Inc.1,094$1.51M0.02%−228−17.2%Reduced
Summit Trail Advisors, LLC1,101$1.52M0.02%+14+1.3%Added
Chase Investment Counsel Corp1,105$1.52M0.40%00.0%Unchanged
Commerzbank Aktiengesellschaft1,105$1.52M0.03%+1,105New
Northwestern Mutual Investment Management Company, LLC1,126$1.55M0.02%+1+0.1%Added
Harbour Investments, Inc.1,142$1.57M0.02%+820+254.7%Added
Boothbay Fund Management, LLC1,150$1.59M0.04%+636+123.7%Added
Parcion Private Wealth LLC1,153$1.59M0.10%+22+1.9%Added
We Are One Seven, LLC1,170$1.61M0.03%+125+12.0%Added
Cypress Advisory Group LLC1,180$1.63M1.24%−355−23.1%Reduced
Private Advisory Group LLC1,190$1.64M0.11%−104−8.0%Reduced
Sowell Financial Services LLC1,198$1.65M0.06%−154−11.4%Reduced
Rothschild Investment LLC1,203$1.66M0.09%+383+46.7%Added
Holderness Investments Co1,209$1.67M0.33%+149+14.1%Added
Change Path, LLC1,211$1.67M0.04%−94−7.2%Reduced
Algebris (UK) Ltd1,215$1.67M0.12%+171+16.4%Added
Caerus Investment Advisors, LLC1,214$1.67M0.71%−325−21.1%Reduced
Fortress Financial Solutions, LLC1,216$1.68M1.75%−67−5.2%Reduced
Bannerstone Capital Management, LLC1,225$1.69M1.75%−160−11.6%Reduced
Ifrah Financial Services, Inc.1,226$1.69M0.45%−39−3.1%Reduced
Exchange Traded Concepts, LLC1,233$1.70M0.01%+20+1.6%Added
Mutual Advisors, LLC1,239$1.71M0.04%+1,239New
denkapparat Operations GmbH1,246$1.72M0.71%00.0%Unchanged
Walleye Trading LLC1,251$1.73M0.04%−1,529−55.0%Reduced
Numerai GP LLC1,266$1.75M0.18%−146−10.3%Reduced
Kestra Investment Management, LLC1,271$1.75M0.03%−193−13.2%Reduced
Soltis Investment Advisors LLC1,275$1.76M0.11%+95+8.1%Added
Metis Global Partners, LLC1,294$1.78M0.04%−247−16.0%Reduced
Saudi Central Bank1,302$1.80M0.04%+1,302New
Strategic Wealth Partners, Ltd.1,305$1.80M0.12%−1,020−43.9%Reduced
Davenport & Co LLC1,305$1.80M0.01%+752+136.0%Added
Financiere des Professionnels - Fonds d,investissement inc.1,306$1.80M0.11%00.0%Unchanged
Gsa Capital Partners LLP1,343$1.85M0.12%+1,038+340.3%Added
Azzad Asset Management Inc1,345$1.86M0.19%−1,513−52.9%Reduced
Katamaran Capital LLP1,349$1.86M1.66%−2,199−62.0%Reduced
Alps Advisors Inc1,351$1.86M0.01%−370−21.5%Reduced
GAMMA Investing LLC1,355$1.87M0.09%+85+6.7%Added
Sigma Planning Corp1,361$1.88M0.05%+494+57.0%Added
IHT Wealth Management, LLC1,373$1.89M0.04%+595+76.5%Added
Aristotle Atlantic Partners, LLC1,375$1.90M0.09%+165+13.6%Added
Baader Bank INC1,407$1.91M0.19%+1,407New
Lisanti Capital Growth, LLC1,390$1.92M0.48%−25−1.8%Reduced
Estate Counselors, LLC1,393$1.92M0.17%−3,525−71.7%Reduced
Argos Wealth Advisors, LLC1,400$1.93M0.56%−15−1.1%Reduced
X-Square Capital, LLC1,411$1.95M0.66%00.0%Unchanged
Braeburn Wealth Management LLC1,412$1.95M1.11%+1,412New
Nomura Holdings Inc1,449$2.00M0.02%−431−22.9%Reduced
Fideuram Asset Management (Ireland) dac1,810$2.00M0.26%+31+1.7%Added
Tokio Marine Asset Management Co Ltd1,456$2.01M0.07%+1,456New
Caldwell Investment Management Ltd.1,600$2.04M0.80%+1,600New
Westco Advisory Services Inc1,480$2.04M1.31%00.0%Unchanged
Quantbot Technologies LP1,498$2.07M0.08%−2,441−62.0%Reduced
Ascent Wealth Partners, LLC1,500$2.07M0.24%+1,500New
L2 Asset Management, LLC1,502$2.07M0.20%−18−1.2%Reduced
Gateway Wealth Partners, LLC1,508$2.08M0.08%+782+107.7%Added
Landscape Capital Management, L.L.C.1,513$2.09M0.13%−1,015−40.2%Reduced
Sterling Capital Management LLC1,525$2.10M0.04%−520−25.4%Reduced
ING Groep NV1,539$2.12M0.01%−3,009−66.2%Reduced
Cornerstone Investment Partners, LLC1,540$2.12M0.09%−363−19.1%Reduced
Tower Research Capital LLC (TRC)1,557$2.15M0.06%−299−16.1%Reduced
Hilltop Holdings Inc.1,572$2.17M0.20%−847−35.0%Reduced
Guggenheim Capital LLC1,572$2.17M0.02%−269−14.6%Reduced
Benjamin Edwards Inc1,574$2.17M0.02%+339+27.4%Added
Highland Capital Management, LLC1,578$2.18M0.12%+1,323+518.8%Added
New Mexico Educational Retirement Board1,600$2.21M0.07%00.0%Unchanged
Gallo Partners, LP1,612$2.22M4.25%−2,850−63.9%Reduced
Convergence Investment Partners, LLC1,614$2.23M0.36%+1,614New
Raiffeisen Bank International AG1,752$2.23M0.03%−7−0.4%Reduced
Segment Wealth Management, LLC1,636$2.26M0.13%+90+5.8%Added
Waddell & Associates, LLC1,637$2.26M0.13%+493+43.1%Added
Jefferies Financial Group Inc.1,638$2.26M0.03%−27,486−94.4%Reduced
Brevan Howard Capital Management LP1,644$2.27M0.02%−65−3.8%Reduced
Nelson, Van Denburg & Campbell Wealth Management Group, LLC1,647$2.27M0.06%−254−13.4%Reduced
VGI Partners Ltd1,657$2.28M0.12%−543−24.7%Reduced
AG2R la Mondiale Gestion D'Actifs1,665$2.30M0.10%−188−10.1%Reduced
GLR Partners, LLC1,674$2.31M1.26%+1,674New
Integrated Quantitative Investments LLC1,691$2.33M0.42%−359−17.5%Reduced
Wakefield Asset Management LLLP1,699$2.34M0.62%+1,699New
Taproot Management LP1,701$2.35M0.44%−3,543−67.6%Reduced
Nations Financial Group Inc,1,709$2.36M0.12%−42−2.4%Reduced
Vestmark Advisory Solutions, Inc.1,715$2.37M0.03%−264−13.3%Reduced
APG Asset Management N.V.1,984$2.37M0.01%+1,984New
Maryland State Retirement & Pension System1,722$2.37M0.05%00.0%Unchanged
RMB Capital Management, LLC1,722$2.37M0.04%+35+2.1%Added
EverSource Wealth Advisors, LLC1,731$2.39M0.07%+187+12.1%Added
Gateway Investment Advisers LLC1,736$2.39M0.03%+1,341+339.5%Added