Comfort Systems Usa Inc (FIX) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

35,347,273Shares Outstanding

127,968Shares held by institutions

$171,189,192Value of institutional holdings

91.21%Institutional ownership %

2.79%Shares Changed QoQ

971No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

According to SEC filings for the period ending December 2025, Comfort Systems Usa Inc (NYSE:FIX) is held by 971 institutional firms.

The percentage of Comfort Systems Usa owned by institutions changed from 94.4% in September 2025 to 91.2% in December 2025, marking a slight down trend.
In percentage terms, this reflects as a holdings change of 2.79% quarter on quarter, and an increase of 48.24% year over year.
The latest 13F cycle for Comfort Systems Usa reveals that of 971 total investors, 559 funds grew their exposure, whereas 324 reduced theirs and 88 made no changes.
The aggregate institutional position in Comfort Systems Usa now stands at 32.24Mn shares as of December 2025, after investors increased their holdings (up by 875.46K shares quarter on quarter which is down 1.76Mn shares year over year).
The top institutional stake in Comfort Systems Usa as of December 31, 2025 belongs to VANGUARD GROUP INC, which owns 4.31Mn shares, or 12.19% of the company.
Among the most significant buyers of Comfort Systems Usa during December 2025 were VANGUARD GROUP INC (625.57K), NORGES BANK (503.17K), STATE STREET CORP (375.12K), GEODE CAPITAL MANAGEMENT, LLC (332.44K), AQR CAPITAL MANAGEMENT LLC (184.36K).
Leading sellers of Comfort Systems Usa stock in December 2025 included BlackRock, Inc. (528.95K), MILLENNIUM MANAGEMENT LLC (297.24K), FMR LLC (221.31K), WESTFIELD CAPITAL MANAGEMENT CO LP (164.36K), Capital World Investors (158.78K).
The top 10 institutional holders of Comfort Systems Usa for the quarter ending December 2025 included VANGUARD GROUP INC (4.31Mn), BlackRock, Inc. (3.45Mn), FMR LLC (1.67Mn), Capital World Investors (1.64Mn), STATE STREET CORP (1.43Mn), GEODE CAPITAL MANAGEMENT, LLC (1.19Mn), AQR CAPITAL MANAGEMENT LLC (1.02Mn), JPMORGAN CHASE & CO (706.99K), WESTFIELD CAPITAL MANAGEMENT CO LP (668.84K), NORGES BANK (503.17K).

971 Institutional Holders

127,968 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VANGUARD GROUP INC	31 Dec, 2025	4,310,126	625,567	16.98%	$4,022,597,495.00
BlackRock, Inc.	31 Dec, 2025	3,448,635	-528,953	-13.30%	$3,218,576,427.00
FMR LLC	31 Dec, 2025	1,670,711	-221,310	-11.70%	$1,559,258,462.00
Capital World Investors	31 Dec, 2025	1,640,532	-158,778	-8.82%	$1,531,092,110.00
STATE STREET CORP	31 Dec, 2025	1,428,674	375,118	35.60%	$1,333,367,157.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	1,185,909	332,441	38.95%	$1,103,453,055.00
AQR CAPITAL MANAGEMENT LLC	31 Dec, 2025	1,019,922	184,362	22.06%	$951,883,354.00
JPMORGAN CHASE & CO	31 Dec, 2025	706,992	-27,527	-3.75%	$659,829,618.00
WESTFIELD CAPITAL MANAGEMENT CO LP	31 Dec, 2025	668,835	-164,360	-19.73%	$624,217,111.00
NORGES BANK	31 Dec, 2025	503,173	503,173	0.00%	$469,606,329.00
FIRST TRUST ADVISORS LP	31 Dec, 2025	482,099	-31,158	-6.07%	$449,938,614.00
MORGAN STANLEY	31 Dec, 2025	431,673	86,013	24.88%	$402,877,774.00
NORTHERN TRUST CORP	31 Dec, 2025	318,782	9,459	3.06%	$297,516,051.00
FEDERATED HERMES, INC.	31 Dec, 2025	317,466	-6,813	-2.10%	$296,287,842.00
DEUTSCHE BANK AG\	31 Dec, 2025	312,824	74,412	31.21%	$291,955,512.00
FULLER & THALER ASSET MANAGEMENT, INC.	31 Dec, 2025	289,039	-81,584	-22.01%	$269,756,967.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	31 Dec, 2025	286,482	78,753	37.91%	$267,370,786.00
BAILLIE GIFFORD & CO	31 Dec, 2025	274,742	-138,042	-33.44%	$256,413,961.00
AMF Tjanstepension AB	31 Dec, 2025	271,668	-53,306	-16.40%	$253,545,028.00
LORD, ABBETT & CO. LLC	31 Dec, 2025	271,580	-2,167	-0.79%	$253,463.00

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