NISA INVESTMENT ADVISORS, LLC

Position in TTEK — Tetra Tech Inc

CIK 937615 ST. LOUIS, MO

Position in TTEK

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

Position Value

$3,074,770

-$341,111 QoQ

Shares Held

102,084

+0.2% QoQ

Ownership

0.039%

of shares outstanding

% of Portfolio

0.02%

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. TTEK ranks #6 (3.9% 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	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 This page	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	$3,074,770	102,084	+0.2%	Shares	Sole	2026-04-30
2025-12-31	$3,415,881	101,845	+0.0%	Shares	Sole	2026-01-15
2025-09-30	$3,399,552	101,844	-22.1%	Shares	Sole	2025-10-23
2025-06-30	$4,701,554	130,744	+0.1%	Shares	Sole	2025-07-31
2025-03-31	$3,822,243	130,675	-1.5%	Shares	Sole	2025-04-30
2024-12-31	$5,285,772	132,675	0.0%	Shares	Sole	2025-01-17
2024-09-30	$6,256,953	132,675	+399.9%	Shares	Sole	2024-10-24
2024-06-30	$5,426,899	26,540	0.0%	Shares	Sole	2024-07-19
2024-03-31	$4,902,203	26,540	0.0%	Shares	Sole	2024-05-02
2023-12-31	$4,430,322	26,540	+1.5%	Shares	Sole	2024-01-25
2023-09-30	$3,974,064	26,140	0.0%	Shares	Sole	2023-11-02
2023-06-30	$4,280,163	26,140	-0.1%	Shares	Sole	2023-08-11
2023-03-31	$3,843,900	26,165	-0.1%	Shares	Sole	2023-05-02
2022-12-31	$3,803,252	26,195	0.0%	Shares	Sole	2023-02-02
2022-09-30	$3,366,843	26,195	-3.8%	Shares	Sole	2022-11-07
2022-06-30	$3,718,256	27,230	-3.8%	Shares	Sole	2022-08-03
2022-03-31	$4,670,441	28,316	+2.1%	Shares	Sole	2022-04-29
2021-12-31	$4,709,403	27,735	+0.4%	Shares	Sole	2022-02-03
2021-09-30	$4,127,010	27,635	0.0%	Shares	Sole	2021-10-18
2021-06-30	$3,372,575	27,635	0.0%	Shares	Sole	2021-08-06
2021-03-31	$3,750,622	27,635	0.0%	Shares	Sole	2021-04-26
2020-12-31	$3,199,580	27,635	+0.7%	Shares	Sole	2021-01-25
2020-09-30	$2,620,042	27,435	+4.4%	Shares	Sole	2020-10-20
2020-06-30	$2,079,669	26,285	+0.1%	Shares	Sole	2020-07-27
2020-03-31	$1,853,775	26,250	—	Shares	Sole	2020-04-17
No filing history on record for this holder in this stock.