ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

Position in FIX — Comfort Systems USA Inc

CIK 1164508 BOSTON, MA

Position in FIX

as of Jun 30, 2026 · filed Aug 13, 2026 Compact

Position Value

$439,404,260

+$90,548,749 QoQ

Shares Held

221,703

-12.4% QoQ

Ownership

0.630%

of shares outstanding

% of Portfolio

0.20%

of 13F equity value

Holder Rank

#25

of 1,341 holders

Holding Since

Sep 2020

12 quarters on record

Voting authority Sole 93% Shared 0% None 7%

Industrials · as of Jun 30, 2026

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $1,646,949,643 across 20 Engineering & Construction names. FIX ranks #1 (26.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	FIX	Comfort Systems USA Inc This page	221,703	$439,404,260
2	DY	Dycom Industries Inc	409,139	$206,856,587
3	STRL	Sterling Infrastructure, Inc.	179,331	$150,523,268
4	ACM	Aecom	2,096,935	$146,366,063
5	TTEK	Tetra Tech Inc	4,393,728	$126,934,801
6	FER	Ferrovial N.V.	1,803,029	$123,705,819
7	AGX	Argan Inc	123,740	$98,812,577
8	MYRG	Myr Group Inc.	141,442	$70,777,576

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$439,404,260	221,703	-12.4%	Shares	Defined	2026-08-13
2026-03-31	$348,855,511	252,979	+12.8%	Shares	Defined	2026-05-14
2025-12-31	$209,306,148	224,267	+17.9%	Shares	Defined	2026-02-13
2025-09-30	$156,951,711	190,203	+27.1%	Shares	Defined	2025-11-13
2025-06-30	$80,220,769	149,607	-1.1%	Shares	Defined	2025-08-13
2025-03-31	$48,747,255	151,234	-11.2%	Shares	Defined	2025-05-14
2024-12-31	$72,186,461	170,227	+27.3%	Shares	Defined	2025-02-12
2024-09-30	$52,207,360	133,745	+39.4%	Shares	Defined	2024-11-14
2024-06-30	$29,182,746	95,958	-2.8%	Shares	Defined	2024-08-14
2024-03-31	$31,359,247	98,704	+606.1%	Shares	Defined	2024-05-15
2023-03-31	$2,040,374	13,979	-80.5%	Shares	Defined	2023-05-15
2020-09-30	$3,690,846	71,653	—	Shares	Defined	2020-11-12
No filing history on record for this holder in this stock.