Comfort Systems USA Ownership | Who Owns Comfort Systems USA?


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Comfort Systems USA Ownership Summary


Comfort Systems USA is owned by 54.81% institutional investors, 1.34% insiders, and 43.85% retail investors. Blackrock is the largest institutional shareholder, holding 12.93% of FIX shares. American Funds SMALLCAP World A is the top mutual fund, with 3.30% of its assets in Comfort Systems USA shares.

FIX Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockComfort Systems USA54.81%1.34%43.85%
SectorIndustrials Stocks 47.69%12.55%39.76%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock4.62M12.93%$1.40B
Vanguard group4.31M12.21%$4.02B
Blackrock funding, inc. /de3.45M9.77%$3.22B
Fmr1.89M5.36%$1.56B
Capital world investors1.64M4.65%$1.53B
Geode capital management1.19M3.36%$1.10B
Invesco1.06M3.02%$878.45M
State street1.05M2.98%$869.37M
Jpmorgan chase706.99K2.00%$659.83M
Westfield capital management co lp668.84K1.89%$624.22M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Crown advisors management16.00K9.82%$14.93M
Blue grotto capital95.61K9.15%$78.89M
Scalar gauge management16.00K6.72%$13.20M
Bwcp, lp39.77K5.69%$32.82M
Bain capital public equity management ii121.58K4.69%$100.33M
River & mercantile asset management llp49.37K4.07%$20.95M
Peterson wealth services16.45K3.92%$15.35M
Cowa13.71K3.89%$12.79M
Rk capital management46.08K3.75%$14.01M
Bain capital public equity, lp6.54K3.42%$5.39M

Top Buyers

HolderShares% AssetsChange
Vanguard group4.31M0.06%625.57K
Norges bank503.17K0.05%503.17K
Geode capital management1.19M0.07%332.44K
Fmr1.89M0.08%321.53K
Northwestern mutual wealth management310.03K0.02%309.22K

Top Sellers

HolderShares% AssetsChange
Blackrock funding, inc. /de3.45M0.05%-528.95K
Vaughan nelson investment management---363.95K
Gfi investment counsel---254.75K
Hennessy advisors---192.60K
Westfield capital management co lp668.84K2.60%-164.36K

New Positions

HolderShares% AssetsChangeValue
Norges bank503.17K0.05%503.17K$469.61M
Castle hook partners lp278.93K1.17%278.93K$230.17M
Bain capital public equity management ii121.58K4.69%121.58K$100.33M
Allspring global investments65.37K0.11%65.37K$65.60M
Axa investment managers52.72K0.12%52.72K$43.50M

Sold Out

HolderChange
Tfc financial management-1.00
Trifecta capital advisors-1.00
Swan capital-1.00
Wr wealth planners-1.00
Raleigh capital management-1.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 2025660-27.07%19,351,266-41.93%540.62%358-27.24%225-26.71%
Sep 30, 2025556-26.36%16,441,216-48.58%460.57%295-32.80%200-11.50%
Jun 30, 202575917.49%33,834,8592.18%951.10%43917.07%22715.23%
Mar 31, 202519-97.20%845,687-97.49%20.03%12-96.64%1-99.57%
Dec 31, 2024411-31.73%18,392,914-43.77%510.61%202-34.42%156-27.44%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
American Funds SMALLCAP World A1.16M3.30%-147.73K
iShares Core S&P Mid-Cap ETF1.15M3.25%-
Vanguard US Total Market Shares ETF1.13M3.20%870.00
Vanguard Total Stock Mkt Idx Inv1.11M3.15%2.49K
Vanguard 500 Index Investor895.54K2.55%5.33K
Vanguard Small Cap Index799.00K2.27%-129.00
iShares Core S&P 500 ETF448.18K1.27%448.18K
Fidelity 500 Index445.06K1.27%445.06K
Vanguard Small Cap Growth Index Inv443.93K1.26%-7.31K
State Street® SPDR® S&P 500® ETF415.89K1.18%-756.00

Recent Insider Transactions


DateNameRoleActivityValue
Mar 03, 2026Reed Terrence SVP & CHROSell$1.56M
Feb 24, 2026Reed Terrence SVP & CHROSell$977.76K
Mar 03, 2026ANDERSON DARCY-Sell$6.16M
Mar 03, 2026Shaeff Julie CHIEF ACCOUNTING OFFICERSell$3.16M
Feb 25, 2026MYERS FRANKLIN-Sell$12.72M

Insider Transactions Trends


DateBuySell
2026 Q1-10
2025 Q4-7
2025 Q3-11
2025 Q2-8
2025 Q1--

FIX Ownership FAQ


Who owns the most shares of Comfort Systems USA?

Comfort Systems USA’s largest shareholders are Blackrock (4.62M shares, 12.93%), Vanguard group (4.31M shares, 12.21%), and Blackrock funding, inc. /de (3.45M shares, 9.77%). Together, they hold 34.90% of Comfort Systems USA’s total shares outstanding.

Does Blackrock own Comfort Systems USA?

Yes, BlackRock owns 12.93% of Comfort Systems USA, totaling 4.62M shares as of Jun 2024. This represents 0.03% of BlackRock's total assets, with a market value of 1.4B$. In the last quarter, BlackRock increased its holdings by 137.16K shares, a 3.06% change.

Who is Comfort Systems USA’s biggest shareholder by percentage of total assets invested?

Crown advisors management is Comfort Systems USA’s biggest shareholder by percentage of total assets invested, with 9.82% of its assets in 16K Comfort Systems USA shares, valued at 14.93M$.

Who is the top mutual fund holder of Comfort Systems USA shares?

American Funds SMALLCAP World A is the top mutual fund holder of Comfort Systems USA shares, with 3.30% of its total shares outstanding invested in 1.16M Comfort Systems USA shares.

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