Comfort Systems Usa FIX Institutional Ownership

NYSE FIX

$1,655.61 -17.33 (-1.04%)

At close: Aug 21, 2026 · 4:00 PM EDT

Institutions by Trading Activity

1,179 Institutions

Increased 680 57.7%

Unchanged 101 8.6%

Reduced 398 33.8%

Ownership Statistics

13F · as of 31 Mar, 2026

Institutional Ownership

7,932.54%

▼-337.57 pp QoQ

Shares Held by Institutions

32.60Mn

of 411.00K outstanding

▲+12.92% QoQ

Shares Outstanding

411.00K

-32.19Mn held outside 13F filers

Institutional Investors

1,179

filed 13F for Mar 2026

▲+151 vs prior quarter

Net Shares Added (QoQ)

+3.73Mn

accumulated since last quarter

Value of Holdings

$56.68Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 31 Mar, 2026

Comfort Systems Usa Inc (NYSE:FIX) has 1,179 institutional investors with active 13F positions as of March 2026.

These investors held 7932.5% of outstanding shares in March 2026, down from 8270.1% in December 2025.
Their total shares held in FIX increased 12.92% quarter over quarter, and separately, investors owning Comfort Systems Usa increased 84.51% from a year ago.
Of these 1,179 holders, 680 added to their stakes in Comfort Systems Usa, 398 trimmed positions, and 101 made no changes.
Combined, these investors held 32.6Mn shares in FIX for March 2026, up by 3.73Mn shares quarter on quarter, and down 3.96Mn shares year over year.
As of March 31, 2026, BlackRock, Inc. held the largest stake in Comfort Systems Usa with 3.51Mn shares, accounting for 854.73% of total shares outstanding.
The biggest buyers of Comfort Systems Usa for the quarter ending March 2026 included VANGUARD CAPITAL MANAGEMENT LLC (2.29Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (1.88Mn), Capital International Investors (278.2K), VANGUARD FIDUCIARY TRUST CO (202.95K), Jpmorgan Chase & Co (182.9K).
The largest sales of FIX for the quarter ending March 2026 came from Capital World Investors (774.75K), FULLER & THALER ASSET MANAGEMENT, INC. (335.88K), NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO (310.03K), FMR LLC (221.19K), JACOBS LEVY EQUITY MANAGEMENT, INC (171.65K).
According to Business Quant data, leading holders of FIX for March 2026 are BlackRock, Inc. (3.51Mn), VANGUARD CAPITAL MANAGEMENT LLC (2.29Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (1.88Mn), State Street Corp (1.47Mn), FMR LLC (1.45Mn), GEODE CAPITAL MANAGEMENT, LLC (1.24Mn), AQR CAPITAL MANAGEMENT LLC (1.12Mn), Jpmorgan Chase & Co (889.89K), Capital World Investors (865.78K), WESTFIELD CAPITAL MANAGEMENT CO LP (620.92K).

Form 13F Holdings

1,179 Institutional Holders

Report period 31 Mar, 2026

Total shares held 32.60Mn

Of outstanding 7,932.54%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	3,512,927	854.73%	▲64,292	+1.86%	$4.84Bn
2	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	2,285,949	556.19%	▲2,285,949	0.00%	$3.15Bn
3	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	1,881,184	457.71%	▲1,881,184	0.00%	$2.59Bn
4	State Street Corp	0000093751	1,471,879	358.12%	▲43,205	+3.02%	$2.03Bn
5	FMR LLC	0000315066	1,449,517	352.68%	▼221,194	-13.24%	$2.00Bn
6	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,238,619	301.37%	▲52,710	+4.44%	$1.71Bn
7	AQR CAPITAL MANAGEMENT LLC	0001167557	1,116,173	271.57%	▲96,251	+9.44%	$1.49Bn
8	Jpmorgan Chase & Co	0000019617	889,891	216.52%	▲182,899	+25.87%	$1.13Bn
9	Capital World Investors	0001422849	865,780	210.65%	▼774,752	-47.23%	$1.19Bn
10	WESTFIELD CAPITAL MANAGEMENT CO LP	0001177719	620,915	151.07%	▼47,920	-7.16%	$856.24Mn
11	Invesco Ltd.	0000914208	606,580	147.59%	▼46,399	-7.11%	$836.47Mn
12	Morgan Stanley	0000895421	460,135	111.95%	▲28,462	+6.59%	$634.52Mn
13	FIRST TRUST ADVISORS LP	0001125816	415,886	101.19%	▼66,213	-13.73%	$573.50Mn
14	Capital International Investors	0001562230	391,831	95.34%	▲278,199	+244.82%	$540.33Mn
15	Northern Trust Corp	0000073124	329,098	80.07%	▲10,316	+3.24%	$453.82Mn
16	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	287,735	70.01%	▲1,253	+0.44%	$396.78Mn
17	DIMENSIONAL FUND ADVISORS LP	0000354204	279,947	68.11%	▲14,423	+5.43%	$385.80Mn
18	Federated Hermes, Inc.	0001056288	267,030	64.97%	▼50,436	-15.89%	$368.23Mn
19	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	0001164508	252,979	61.55%	▲28,712	+12.80%	$348.86Mn
20	Hood River Capital Management LLC	0001578177	249,385	60.68%	▲3,528	+1.43%	$343.90Mn

Showing 1 to 20 of 1,179 holders