WELLINGTON MANAGEMENT GROUP LLP

Position in TTEK — Tetra Tech Inc

CIK 902219 Boston, MA

Back to TTEK Full portfolio

Position in TTEK

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$144,697,952

+$109,304,064 QoQ

Shares Held

4,804,049

+355.2% QoQ

Ownership

1.85%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 0.ToString("F0")% Shared 88.89538803621694.ToString("F0")% None 11.10461196378305.ToString("F0")%

Common Shares in TTEK Over Time

Shares Held

Position Value (USD)

Position in Engineering & Construction

Industrials · as of Mar 31, 2026

WELLINGTON MANAGEMENT GROUP LLP holds $1,006,089,286 across 16 Engineering & Construction names. TTEK ranks #3 (14.4% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	PRIM	Primoris Services Corp	1,879,600	$268,857,980
2	MYRG	Myr Group Inc.	644,328	$181,906,677
3	TTEK	Tetra Tech Inc This page	4,804,049	$144,697,952
4	EME	EMCOR Group, Inc.	135,541	$100,071,272
5	AMRC	Ameresco, Inc.	3,541,577	$90,310,212
6	KBR	Kbr, Inc.	1,995,640	$73,559,288
7	PWR	Quanta Services, Inc.	106,211	$58,311,963
8	FIX	Comfort Systems USA Inc	19,174	$26,440,753

All Filings in TTEK

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$144,697,952	4,804,049	+355.2%	Shares	Defined	2026-05-15
2025-12-31	$35,393,888	1,055,274	+0.2%	Shares	Defined	2026-02-17
2025-09-30	$35,146,834	1,052,931	-23.9%	Shares	Defined	2025-11-14
2025-06-30	$49,782,553	1,384,387	-6.3%	Shares	Defined	2025-08-14
2025-03-31	$43,225,970	1,477,811	+23.8%	Shares	Defined	2025-05-13
2024-12-31	$47,567,484	1,193,963	+10.8%	Shares	Defined	2025-02-12
2024-09-30	$50,830,366	1,077,828	+365.5%	Shares	Defined	2024-11-14
2024-06-30	$9,469,221	231,544	-0.5%	Shares	Defined	2024-08-14
2024-03-31	$8,599,835	232,793	-18.7%	Shares	Defined	2024-05-15
2023-12-31	$9,557,107	286,261	-25.5%	Shares	Defined	2024-02-12
2023-09-30	$11,683,199	384,240	-1.2%	Shares	Defined	2023-11-14
2023-06-30	$12,735,858	388,905	+3.4%	Shares	Defined	2023-08-14
2023-03-31	$11,053,358	376,195	-7.0%	Shares	Defined	2023-05-12
2022-12-31	$11,750,137	404,647	-13.1%	Shares	Defined	2023-02-13
2022-09-30	$11,974,290	465,817	-7.7%	Shares	Defined	2022-11-14
2022-06-30	$13,779,448	504,557	-27.3%	Shares	Defined	2022-08-15
2022-03-31	$22,905,938	694,372	-0.3%	Shares	Defined	2022-05-16
2021-12-31	$23,657,788	696,637	-29.3%	Shares	Defined	2022-02-11
2021-09-30	$29,438,851	985,632	+7.3%	Shares	Defined	2021-11-15
2021-06-30	$22,428,288	918,891	+2.1%	Shares	Defined	2021-08-16
2021-03-31	$24,429,188	899,985	-27.2%	Shares	Defined	2021-05-17
2020-12-31	$28,635,469	1,236,633	+13.0%	Shares	Defined	2021-02-12
2020-09-30	$20,907,545	1,094,636	+212.3%	Shares	Defined	2020-11-16
2020-06-30	$5,546,390	350,505	+1510.7%	Shares	Defined	2020-08-14
2020-03-31	$307,351	21,761	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.