NISA INVESTMENT ADVISORS, LLC

Position in FIX — Comfort Systems USA Inc

CIK 937615 ST. LOUIS, MO

Position in FIX

as of Mar 31, 2026 · filed Apr 30, 2026 Compact

Position Value

$16,958,819

+$5,540,950 QoQ

Shares Held

12,298

+0.5% QoQ

Ownership

0.035%

of shares outstanding

% of Portfolio

0.11%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Industrials · as of Mar 31, 2026

NISA INVESTMENT ADVISORS, LLC holds $78,978,800 across 32 Engineering & Construction names. FIX ranks #2 (21.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	PWR	Quanta Services, Inc.	33,454	$18,366,915
2	FIX	Comfort Systems USA Inc This page	12,298	$16,958,819
3	EME	EMCOR Group, Inc.	22,887	$16,897,700
4	ACM	Aecom	59,400	$5,038,308
5	J	Jacobs Solutions Inc.	35,498	$4,518,185
6	TTEK	Tetra Tech Inc	102,084	$3,074,770
7	BLD	QXO Insulation, LLC	8,412	$2,955,135
8	KBR	Kbr, Inc.	61,719	$2,274,962

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$16,958,819	12,298	+0.5%	Shares	Sole	2026-04-30
2025-12-31	$11,417,869	12,234	+3.8%	Shares	Sole	2026-01-15
2025-09-30	$9,724,746	11,785	-26.3%	Shares	Sole	2025-10-23
2025-06-30	$8,573,461	15,989	+1.2%	Shares	Sole	2025-07-31
2025-03-31	$5,092,169	15,798	+0.1%	Shares	Sole	2025-04-30
2024-12-31	$6,694,635	15,787	-13.1%	Shares	Sole	2025-01-17
2024-09-30	$7,089,146	18,161	+9.8%	Shares	Sole	2024-10-24
2024-06-30	$5,031,057	16,543	-13.5%	Shares	Sole	2024-07-19
2024-03-31	$6,078,427	19,132	-28.1%	Shares	Sole	2024-05-02
2023-12-31	$5,475,552	26,623	-0.4%	Shares	Sole	2024-01-25
2023-09-30	$4,553,866	26,723	-17.6%	Shares	Sole	2023-11-02
2023-06-30	$5,323,856	32,423	+17.0%	Shares	Sole	2023-08-11
2023-03-31	$4,044,989	27,713	-0.4%	Shares	Sole	2023-05-02
2022-12-31	$3,201,870	27,823	0.0%	Shares	Sole	2023-02-02
2022-09-30	$2,708,012	27,823	+0.1%	Shares	Sole	2022-11-07
2022-06-30	$2,311,570	27,800	-0.7%	Shares	Sole	2022-08-03
2022-03-31	$2,491,567	27,992	-0.3%	Shares	Sole	2022-04-29
2021-12-31	$2,777,245	28,070	0.0%	Shares	Sole	2022-02-03
2021-09-30	$2,001,952	28,070	0.0%	Shares	Sole	2021-10-18
2021-06-30	$2,211,635	28,070	+1.0%	Shares	Sole	2021-08-06
2021-03-31	$2,078,606	27,800	0.0%	Shares	Sole	2021-04-26
2020-12-31	$1,463,948	27,800	+17.8%	Shares	Sole	2021-01-25
2020-09-30	$1,215,636	23,600	+4.0%	Shares	Sole	2020-10-20
2020-06-30	$925,025	22,700	0.0%	Shares	Sole	2020-07-27
2020-03-31	$829,685	22,700	—	Shares	Sole	2020-04-17
No filing history on record for this holder in this stock.