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Tetra Tech, Inc. 2025-2026 Proxy Voting Records

Compiled from SEC Form N-PX filings and Tetra Tech, Inc.’s Form 8-K, filed February 20, 2026 (Item 5.07 on EDGAR). Page generated October 18, 2026.

9Ballot items
584Asset managers
4,514Fund votes
February 19, 2026Meeting date

Results at a glance

Meeting of February 19, 2026: 9 items on Tetra Tech, Inc.’s Form 8-K, filed February 20, 2026: 9 without a stated outcome.

Material dissent

None.

Material dissent: a director nominee under 80% of the votes cast, say-on-pay under 70%, any other item the board put forward under 80%, or a shareholder proposal with more than 50%, on the company’s own Form 8-K tally. How this is decided

Proxy season: 2023-2024 2024-2025 2025-2026

Explore Tetra Tech, Inc. in the interactive database Compare manager voting policies

Official 2025-2026 meeting results reported by Tetra Tech, Inc.

These tallies are Tetra Tech, Inc.’s own, as disclosed to the U.S. Securities and Exchange Commission on Form 8-K, filed February 20, 2026 (Item 5.07, “Submission of Matters to a Vote of Security Holders”). They cover every share voted at the meeting, not just the funds that file Form N-PX.

Tetra Tech, Inc. — official shareholder meeting results, meeting held February 19, 2026
Ballot item	For	Against	Abstain	Withheld	Broker non-votes	Support (of votes cast)	Reported outcome	Voting standard
Elect Director: Dan L. Batrack	207,604,830	8,910,065	165,833	--	15,787,396	96%	Not verified	—
Elect Director: Gary R. Birkenbeuel	209,301,678	7,205,550	173,500	--	15,787,396	97%	Not verified	—
Elect Director: Jeffrey R. Feeler	211,692,635	4,862,434	125,659	--	15,787,396	98%	Not verified	—
Elect Director: Prashant Gandhi	188,693,342	27,760,069	227,317	--	15,787,396	87%	Not verified	—
Elect Director: M. Susan Hardwick	212,525,040	3,977,286	178,402	--	15,787,396	98%	Not verified	—
Elect Director: Kirsten M. Volpi	201,215,963	15,298,587	166,178	--	15,787,396	93%	Not verified	—
Advisory Resolution Regarding Executive Compensation:	199,849,461	15,768,160	1,063,107	--	15,787,396	93%	Not verified	—
Amendment to the Employee Stock Purchase Plan:	215,423,810	1,163,398	93,520	--	15,787,396	99.4%	Not verified	—
Appointment of PricewaterhouseCoopers LLP:	212,448,506	19,813,032	206,586	--	--	91%	Not verified	—

Source: Tetra Tech, Inc., Form 8-K, filed with the SEC on February 20, 2026 — read the filing on EDGAR.

How asset managers voted at the Tetra Tech, Inc. 2025-2026 meeting

Each item below shows how the 584 asset managers that disclosed a Tetra Tech, Inc. vote in their SEC Form N-PX filings actually voted. Share totals are the shares those managers' funds voted, summed across every fund they report.

1. Elect Director: Dan L. Batrack

Outcome not verifiedDIRECTOR ELECTIONSReported outcome: Not verified

Combines 4 wordings of this item as funds reported it.

96% Majority: yes · of votes cast

FOR 96%

FOR: 207,604,830AGAINST: 8,910,065

Details: description as filed, official tally, votes by 129 asset managers

Description as filed by funds: Election of Directors: Dan L. Batrack

Tetra Tech, Inc.’s own tally for this item (“Elect Director: Dan L. Batrack”): 207,604,830 for, 8,910,065 against, per its Form 8-K filed February 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 96% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 129 asset managers below reported 77,861,554 for, 385,282 against, 44,632 abstained, 194 not voted.

FOR

FOR: 77,861,554AGAINST: 385,282ABSTAIN: 44,632NOT VOTED: 194

Largest asset managers voting on “Election of Directors: Dan L. Batrack” at Tetra Tech, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	23,660,369	11	0	For
BlackRock	14,402,085	0	0	For
Capital Group	9,681,131	0	0	For
Fidelity	4,510,721	0	0	For
Neuberger Berman	2,900,885	0	0	For
Invesco	2,292,491	0	0	For
State Street	2,274,375	0	0	For
Charles Schwab	2,110,397	0	0	For
Global X	1,718,087	0	0	For
First Trust	1,630,501	0	0	For
Dimensional	1,161,353	0	0	For
TIAA	1,120,223	0	0	For
OLD WESTBURY FUNDS INC	970,387	0	0	For
AB SUSTAINABLE GLOBAL THEMATIC FUND, INC.	477,270	0	0	For
Brighthouse	383,811	0	44,632	Mixed
Equitable	390,086	0	0	For
Lincoln Financial	359,129	0	0	For
BNY Mellon	357,031	0	0	For
Jackson National	356,984	0	0	For
ADVISORS' INNER CIRCLE FUND	351,898	0	0	For
John Hancock	339,874	0	0	For
Calvert	0	330,293	0	Against
JPMorgan	296,928	0	0	For
Tidal Trust III	294,641	0	0	For
Columbia Threadneedle	280,518	0	0	For

Showing the 25 largest of 129 asset managers. See all 129 in the interactive database.

2. Elect Director: Gary R. Birkenbeuel

Outcome not verifiedDIRECTOR ELECTIONSReported outcome: Not verified

Combines 4 wordings of this item as funds reported it.

97% Majority: yes · of votes cast

FOR 97%

FOR: 209,301,678AGAINST: 7,205,550

Details: description as filed, official tally, votes by 129 asset managers

Description as filed by funds: Election of Directors: Gary R. Birkenbeuel

Tetra Tech, Inc.’s own tally for this item (“Elect Director: Gary R. Birkenbeuel”): 209,301,678 for, 7,205,550 against, per its Form 8-K filed February 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 97% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 129 asset managers below reported 77,753,367 for, 493,470 against, 44,632 abstained, 194 not voted.

FOR

FOR: 77,753,367AGAINST: 493,470ABSTAIN: 44,632NOT VOTED: 194

Largest asset managers voting on “Election of Directors: Gary R. Birkenbeuel” at Tetra Tech, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	23,653,116	7,264	0	For
BlackRock	14,402,085	0	0	For
Capital Group	9,681,131	0	0	For
Fidelity	4,510,721	0	0	For
Neuberger Berman	2,900,885	0	0	For
Invesco	2,292,491	0	0	For
State Street	2,274,375	0	0	For
Charles Schwab	2,110,397	0	0	For
Global X	1,718,087	0	0	For
First Trust	1,630,501	0	0	For
Dimensional	1,161,353	0	0	For
TIAA	1,120,223	0	0	For
OLD WESTBURY FUNDS INC	970,387	0	0	For
AB SUSTAINABLE GLOBAL THEMATIC FUND, INC.	477,270	0	0	For
Brighthouse	383,811	0	44,632	Mixed
Equitable	390,086	0	0	For
Lincoln Financial	359,129	0	0	For
BNY Mellon	357,031	0	0	For
Jackson National	356,984	0	0	For
ADVISORS' INNER CIRCLE FUND	351,898	0	0	For
John Hancock	339,874	0	0	For
Calvert	0	330,293	0	Against
JPMorgan	296,928	0	0	For
Tidal Trust III	294,641	0	0	For
Columbia Threadneedle	280,518	0	0	For

Showing the 25 largest of 129 asset managers. See all 129 in the interactive database.

3. Elect Director: Jeffrey R. Feeler

Outcome not verifiedDIRECTOR ELECTIONSReported outcome: Not verified

Combines 4 wordings of this item as funds reported it.

98% Majority: yes · of votes cast

FOR 98%

FOR: 211,692,635AGAINST: 4,862,434

Details: description as filed, official tally, votes by 129 asset managers

Description as filed by funds: Election of Directors: Jeffrey R. Feeler

Tetra Tech, Inc.’s own tally for this item (“Elect Director: Jeffrey R. Feeler”): 211,692,635 for, 4,862,434 against, per its Form 8-K filed February 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 98% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 129 asset managers below reported 78,205,817 for, 41,020 against, 44,632 abstained, 194 not voted.

FOR

FOR: 78,205,817AGAINST: 41,020ABSTAIN: 44,632NOT VOTED: 194

Largest asset managers voting on “Election of Directors: Jeffrey R. Feeler” at Tetra Tech, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	23,660,375	6	0	For
BlackRock	14,402,085	0	0	For
Capital Group	9,681,131	0	0	For
Fidelity	4,510,721	0	0	For
Neuberger Berman	2,900,885	0	0	For
Invesco	2,292,491	0	0	For
State Street	2,274,375	0	0	For
Charles Schwab	2,110,397	0	0	For
Global X	1,718,087	0	0	For
First Trust	1,630,501	0	0	For
Dimensional	1,161,353	0	0	For
TIAA	1,120,223	0	0	For
OLD WESTBURY FUNDS INC	970,387	0	0	For
AB SUSTAINABLE GLOBAL THEMATIC FUND, INC.	477,270	0	0	For
Brighthouse	383,811	0	44,632	Mixed
Equitable	390,086	0	0	For
Lincoln Financial	359,129	0	0	For
BNY Mellon	357,031	0	0	For
Jackson National	356,984	0	0	For
ADVISORS' INNER CIRCLE FUND	351,898	0	0	For
John Hancock	339,874	0	0	For
Calvert	330,293	0	0	For
JPMorgan	296,928	0	0	For
Tidal Trust III	294,641	0	0	For
Columbia Threadneedle	280,518	0	0	For

Showing the 25 largest of 129 asset managers. See all 129 in the interactive database.

4. Elect Director: Kirsten M. Volpi

Outcome not verifiedDIRECTOR ELECTIONSReported outcome: Not verified

Combines 4 wordings of this item as funds reported it.

93% Majority: yes · of votes cast

FOR 93%

FOR: 201,215,963AGAINST: 15,298,587

Details: description as filed, official tally, votes by 129 asset managers

Description as filed by funds: Election of Directors: Kirsten M. Volpi

Tetra Tech, Inc.’s own tally for this item (“Elect Director: Kirsten M. Volpi”): 201,215,963 for, 15,298,587 against, per its Form 8-K filed February 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 93% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 129 asset managers below reported 78,204,484 for, 42,352 against, 44,632 abstained, 194 not voted.

FOR

FOR: 78,204,484AGAINST: 42,352ABSTAIN: 44,632NOT VOTED: 194

Largest asset managers voting on “Election of Directors: Kirsten M. Volpi” at Tetra Tech, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	23,660,361	19	0	For
BlackRock	14,402,085	0	0	For
Capital Group	9,681,131	0	0	For
Fidelity	4,510,721	0	0	For
Neuberger Berman	2,900,885	0	0	For
Invesco	2,292,491	0	0	For
State Street	2,274,375	0	0	For
Charles Schwab	2,110,397	0	0	For
Global X	1,718,087	0	0	For
First Trust	1,630,501	0	0	For
Dimensional	1,161,353	0	0	For
TIAA	1,120,223	0	0	For
OLD WESTBURY FUNDS INC	970,387	0	0	For
AB SUSTAINABLE GLOBAL THEMATIC FUND, INC.	477,270	0	0	For
Brighthouse	383,811	0	44,632	Mixed
Equitable	390,086	0	0	For
Lincoln Financial	359,129	0	0	For
BNY Mellon	357,031	0	0	For
Jackson National	356,984	0	0	For
ADVISORS' INNER CIRCLE FUND	351,898	0	0	For
John Hancock	339,874	0	0	For
Calvert	330,293	0	0	For
JPMorgan	296,928	0	0	For
Tidal Trust III	294,641	0	0	For
Columbia Threadneedle	280,518	0	0	For

Showing the 25 largest of 129 asset managers. See all 129 in the interactive database.

5. Elect Director: M. Susan Hardwick

Outcome not verifiedDIRECTOR ELECTIONSReported outcome: Not verified

Combines 4 wordings of this item as funds reported it.

98% Majority: yes · of votes cast

FOR 98%

FOR: 212,525,040AGAINST: 3,977,286

Details: description as filed, official tally, votes by 129 asset managers

Description as filed by funds: Election of Directors: M. Susan Hardwick

Tetra Tech, Inc.’s own tally for this item (“Elect Director: M. Susan Hardwick”): 212,525,040 for, 3,977,286 against, per its Form 8-K filed February 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

The 129 asset managers below reported 78,157,428 for, 89,409 against, 44,632 abstained, 194 not voted.

FOR

FOR: 78,157,428AGAINST: 89,409ABSTAIN: 44,632NOT VOTED: 194

Largest asset managers voting on “Election of Directors: M. Susan Hardwick” at Tetra Tech, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	23,653,120	7,260	0	For
BlackRock	14,402,085	0	0	For
Capital Group	9,681,131	0	0	For
Fidelity	4,510,721	0	0	For
Neuberger Berman	2,900,885	0	0	For
Invesco	2,292,491	0	0	For
State Street	2,274,375	0	0	For
Charles Schwab	2,110,397	0	0	For
Global X	1,718,087	0	0	For
First Trust	1,630,501	0	0	For
Dimensional	1,161,353	0	0	For
TIAA	1,120,223	0	0	For
OLD WESTBURY FUNDS INC	970,387	0	0	For
AB SUSTAINABLE GLOBAL THEMATIC FUND, INC.	477,270	0	0	For
Brighthouse	383,811	0	44,632	Mixed
Equitable	390,086	0	0	For
Lincoln Financial	359,129	0	0	For
BNY Mellon	357,031	0	0	For
Jackson National	356,984	0	0	For
ADVISORS' INNER CIRCLE FUND	351,898	0	0	For
John Hancock	339,874	0	0	For
Calvert	330,293	0	0	For
JPMorgan	296,928	0	0	For
Tidal Trust III	294,641	0	0	For
Columbia Threadneedle	280,518	0	0	For

Showing the 25 largest of 129 asset managers. See all 129 in the interactive database.

6. Elect Director: Prashant Gandhi

Outcome not verifiedDIRECTOR ELECTIONSReported outcome: Not verified

Combines 3 wordings of this item as funds reported it.

87% Majority: yes · of votes cast

FOR 87%

FOR: 188,693,342AGAINST: 27,760,069

Details: description as filed, official tally, votes by 129 asset managers

Description as filed by funds: Election of Directors: Prashant Gandhi

Tetra Tech, Inc.’s own tally for this item (“Elect Director: Prashant Gandhi”): 188,693,342 for, 27,760,069 against, per its Form 8-K filed February 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 87% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 129 asset managers below reported 74,964,279 for, 3,282,557 against, 44,632 abstained, 194 not voted.

FOR

FOR: 74,964,279AGAINST: 3,282,557ABSTAIN: 44,632NOT VOTED: 194

Largest asset managers voting on “Election of Directors: Prashant Gandhi” at Tetra Tech, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	23,653,087	7,292	0	For
BlackRock	14,402,085	0	0	For
Capital Group	9,681,131	0	0	For
Fidelity	4,510,721	0	0	For
Neuberger Berman	2,900,885	0	0	For
Invesco	2,292,491	0	0	For
State Street	2,274,375	0	0	For
Charles Schwab	2,109,949	448	0	For
Global X	0	1,718,087	0	Against
First Trust	1,630,501	0	0	For
Dimensional	1,161,353	0	0	For
TIAA	1,120,223	0	0	For
OLD WESTBURY FUNDS INC	970,387	0	0	For
AB SUSTAINABLE GLOBAL THEMATIC FUND, INC.	477,270	0	0	For
Brighthouse	383,811	0	44,632	Mixed
Equitable	390,086	0	0	For
Lincoln Financial	195,957	163,172	0	Mixed
BNY Mellon	357,031	0	0	For
Jackson National	356,984	0	0	For
ADVISORS' INNER CIRCLE FUND	351,898	0	0	For
John Hancock	339,874	0	0	For
Calvert	0	330,293	0	Against
JPMorgan	296,928	0	0	For
Tidal Trust III	294,641	0	0	For
Columbia Threadneedle	280,518	0	0	For

Showing the 25 largest of 129 asset managers. See all 129 in the interactive database.

7. Amendment to the Employee Stock Purchase Plan:

Outcome not verifiedCOMPENSATIONReported outcome: Not verified

Combines 5 wordings of this item as funds reported it.

99.4% Majority: yes · of votes cast

FOR 99.4%

FOR: 215,423,810AGAINST: 1,163,398

Details: description as filed, official tally, votes by 135 asset managers

Description as filed by funds: TO APPROVE THE AMENDMENT TO THE EMPLOYEE STOCK PURCHASE PLAN.

Tetra Tech, Inc.’s own tally for this item (“Amendment to the Employee Stock Purchase Plan:”): 215,423,810 for, 1,163,398 against, per its Form 8-K filed February 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 99.4% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 135 asset managers below reported 78,295,328 for, 44,633 against, 194 not voted.

FOR

FOR: 78,295,328AGAINST: 44,633NOT VOTED: 194

Largest asset managers voting on “TO APPROVE THE AMENDMENT TO THE EMPLOYEE STOCK PURCHASE PLAN.” at Tetra Tech, Inc., 2025-2026
Asset manager	For	Against	Vote
Vanguard	23,660,380	1	For
BlackRock	14,402,085	0	For
Capital Group	9,681,131	0	For
Fidelity	4,510,721	0	For
Neuberger Berman	2,900,885	0	For
Invesco	2,292,491	0	For
State Street	2,274,375	0	For
Charles Schwab	2,110,397	0	For
Global X	1,718,087	0	For
First Trust	1,630,501	0	For
Dimensional	1,161,353	0	For
TIAA	1,120,223	0	For
OLD WESTBURY FUNDS INC	970,387	0	For
AB SUSTAINABLE GLOBAL THEMATIC FUND, INC.	477,270	0	For
Brighthouse	383,811	44,632	Mixed
Equitable	390,086	0	For
Lincoln Financial	359,129	0	For
BNY Mellon	357,031	0	For
Jackson National	356,984	0	For
ADVISORS' INNER CIRCLE FUND	351,898	0	For
John Hancock	339,874	0	For
Calvert	330,293	0	For
JPMorgan	296,928	0	For
Tidal Trust III	294,641	0	For
Columbia Threadneedle	280,518	0	For

Showing the 25 largest of 135 asset managers. See all 135 in the interactive database.

8. Advisory Resolution Regarding Executive Compensation:

Outcome not verified Fund totals may overlapSECTION 14A SAY-ON-PAY VOTESReported outcome: Not verified

Combines 12 wordings of this item as funds reported it.

93% Majority: yes · of votes cast

FOR 93%

FOR: 199,849,461AGAINST: 15,768,160

Details: description as filed, official tally, votes by 584 asset managers

Description as filed by funds: To approve, on an advisory basis, the Company's named executive officers' compensation.

Tetra Tech, Inc.’s own tally for this item (“Advisory Resolution Regarding Executive Compensation:”): 199,849,461 for, 15,768,160 against, per its Form 8-K filed February 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Fund voting reports and institutional-manager reports both cover this item. An institutional manager can report shares that a fund it advises also reports, so the two are shown separately below and never added together, and their sum is not shown (fund and manager reports combined may count the same shares twice).

Fund voting reports: 128 asset managers voting on “To approve, on an advisory basis, the Company's named executive officers' compensation.” at Tetra Tech, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	23,650,069	10,309	1	For
BlackRock	14,402,085	0	0	For
Capital Group	9,681,131	0	0	For
Fidelity	4,510,721	0	0	For
Neuberger Berman	2,900,885	0	0	For
Invesco	2,292,491	0	0	For
State Street	2,274,375	0	0	For
Charles Schwab	2,110,397	0	0	For
Global X	1,718,087	0	0	For
First Trust	1,630,501	0	0	For
Dimensional	1,161,353	0	0	For
TIAA	1,120,223	0	0	For
OLD WESTBURY FUNDS INC	970,387	0	0	For
AB SUSTAINABLE GLOBAL THEMATIC FUND, INC.	477,270	0	0	For
Brighthouse	383,811	0	44,632	Mixed
Equitable	390,086	0	0	For
Lincoln Financial	359,129	0	0	For
BNY Mellon	357,031	0	0	For
Jackson National	356,984	0	0	For
ADVISORS' INNER CIRCLE FUND	351,898	0	0	For
John Hancock	339,874	0	0	For
Calvert	0	330,293	0	Against
JPMorgan	296,928	0	0	For
Tidal Trust III	294,641	0	0	For
Columbia Threadneedle	280,518	0	0	For

Fund voting reports, all 128 managers: 77,713,713 for, 566,244 against, 51,270 abstained, 194 not voted. Showing the 25 largest; see all in the interactive database.

Institutional-manager reports: 485 asset managers voting on “To approve, on an advisory basis, the Company's named executive officers' compensation.” at Tetra Tech, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
PICTET ASSET MANAGEMENT SA	10,048,855	0	0	For
BlackRock	9,707,089	1,390	1,025	For
Capital Group	9,220,763	0	0	For
State Street	8,906,010	8,463	0	For
Neuberger Berman	8,092,741	0	0	For
GEODE CAPITAL MANAGEMENT, LLC	5,041,668	0	0	For
Fidelity	4,607,758	0	0	For
SANDS CAPITAL MANAGEMENT, LLC	4,593,626	0	0	For
PGGM Investments	0	3,217,817	0	Against
IMPAX ASSET MANAGEMENT LLC	3,208,190	0	0	For
AllianceBernstein	3,090,752	0	0	For
Amundi	0	3,074,083	0	Against
FERNBRIDGE CAPITAL MANAGEMENT LP	3,066,841	0	0	For
Janus Henderson	3,014,884	0	0	For
LGT Group Foundation	2,952,007	0	0	For
Robeco Schweiz AG	2,795,740	0	0	For
Northern Trust	2,182,207	0	0	For
Charles Schwab	2,155,473	0	0	For
Ninety One UK Ltd	2,120,732	0	0	For
AMERIPRISE FINANCIAL INC	2,005,147	0	0	For
Vanguard	1,969,124	0	0	For
BESSEMER INVESTMENT MANAGEMENT LLC	1,940,774	0	0	For
Capital Research Global Investors	1,771,486	0	0	For
Allianz	1,689,243	0	0	For
MELLON INVESTMENTS Corp	1,670,314	0	0	For

Institutional-manager reports, all 485 managers: 136,002,484 for, 13,382,625 against, 798,985 abstained, 253,886 not voted. Showing the 25 largest; see all in the interactive database.

9. Appointment of PricewaterhouseCoopers LLP:

Outcome not verifiedAUDIT-RELATEDReported outcome: Not verified

Combines 4 wordings of this item as funds reported it.

91% Majority: yes · of votes cast

FOR 91%

FOR: 212,448,506AGAINST: 19,813,032

Details: description as filed, official tally, votes by 129 asset managers

Description as filed by funds: To ratify the appointment of PricewaterhouseCoopers LLP as the Company's independent registered public accounting firm for fiscal year 2026.

Tetra Tech, Inc.’s own tally for this item (“Appointment of PricewaterhouseCoopers LLP:”): 212,448,506 for, 19,813,032 against, per its Form 8-K filed February 20, 2026 (Item 5.07). FOR was more than half of the votes cast. Whether the item passed is for the filing to say; its statement has not been read for this item.

Reported outcome: not verified — the filing’s own statement of the outcome could not be identified for this item.
Support: 91% of votes cast — FOR ÷ (FOR + AGAINST); abstentions and broker non-votes are excluded.

The 129 asset managers below reported 77,965,805 for, 281,031 against, 44,632 abstained, 194 not voted.

FOR

FOR: 77,965,805AGAINST: 281,031ABSTAIN: 44,632NOT VOTED: 194

Largest asset managers voting on “To ratify the appointment of PricewaterhouseCoopers LLP as the Company's independent registered public account” at Tetra Tech, Inc., 2025-2026
Asset manager	For	Against	Abstain	Vote
Vanguard	23,653,100	7,279	0	For
BlackRock	14,402,085	0	0	For
Capital Group	9,681,131	0	0	For
Fidelity	4,510,721	0	0	For
Neuberger Berman	2,900,885	0	0	For
Invesco	2,292,491	0	0	For
State Street	2,274,375	0	0	For
Charles Schwab	2,110,397	0	0	For
Global X	1,718,087	0	0	For
First Trust	1,630,501	0	0	For
Dimensional	1,161,353	0	0	For
TIAA	1,120,223	0	0	For
OLD WESTBURY FUNDS INC	970,387	0	0	For
AB SUSTAINABLE GLOBAL THEMATIC FUND, INC.	477,270	0	0	For
Brighthouse	383,811	0	44,632	Mixed
Equitable	390,086	0	0	For
Lincoln Financial	359,129	0	0	For
BNY Mellon	357,031	0	0	For
Jackson National	356,984	0	0	For
ADVISORS' INNER CIRCLE FUND	351,898	0	0	For
John Hancock	339,874	0	0	For
Calvert	330,293	0	0	For
JPMorgan	296,928	0	0	For
Tidal Trust III	294,641	0	0	For
Columbia Threadneedle	280,518	0	0	For

Showing the 25 largest of 129 asset managers. See all 129 in the interactive database.

Largest Tetra Tech, Inc. shareholders voting in 2025-2026

Ranked separately for each type of Form N-PX report. An institutional manager can report shares that a fund it advises also reports, so the two tables can list the same shares and are never added together. Each is ranked by the shares voted on the item that the most managers of that type reported, shown as a share of the 260,811,000 shares outstanding at the time of that meeting.

Fund voting reports: top Tetra Tech, Inc. shareholders by shares voted on “To approve, on an advisory basis, the Company's named executive officers' compensation.”, 2025-2026
#	Asset manager	% of shares outstanding
1	Vanguard	9.07%
2	BlackRock	5.52%
3	Capital Group	3.71%
4	Fidelity	1.73%
5	Neuberger Berman	1.11%
6	Invesco	0.88%
7	State Street	0.87%
8	Charles Schwab	0.81%
9	Global X	0.66%
10	First Trust	0.63%

Institutional-manager reports: top Tetra Tech, Inc. shareholders by shares voted on “To approve, on an advisory basis, the Company's named executive officers' compensation.”, 2025-2026
#	Asset manager	% of shares outstanding
1	PICTET ASSET MANAGEMENT SA	3.85%
2	BlackRock	3.72%
3	Capital Group	3.54%
4	State Street	3.42%
5	Neuberger Berman	3.10%
6	GEODE CAPITAL MANAGEMENT, LLC	1.93%
7	Fidelity	1.77%
8	SANDS CAPITAL MANAGEMENT, LLC	1.76%
9	PGGM Investments	1.23%
10	IMPAX ASSET MANAGEMENT LLC	1.23%

Reported Tetra Tech, Inc. holdings and ownership

As disclosed to the SEC in Form 13F (quarter-end holdings of 30 large managers), Schedules 13D and 13G (beneficial ownership above 5%) and the company’s own proxy statement (DEF 14A). Each row names its form.

Tetra Tech, Inc. holdings and ownership disclosed for the 2025-2026 proxy season
Holder	% outstanding	Disclosure
The Vanguard Group, Inc.	10.42%	DEF14A
BlackRock	10.27%	13F
State Street	3.69%	13F
Wellington Management	1.84%	13F
Dimensional Fund Advisors	1.45%	13F
Invesco	1.13%	13F
BNY Mellon	0.90%	13F
Morgan Stanley	0.89%	13F
Mr. Batrack	0.13%	DEF14A
Dr. Shoemaker	0.13%	DEF14A

Percentages above are of 260,811,000 shares outstanding, as reported by Tetra Tech, Inc. on its Form 10-Q dated December 28, 2025 (see the filing on EDGAR). This is the count contemporaneous with the 2025-2026 meeting, not today’s. Each holding is as of its own filing, which may be dated before or after the meeting.

About this page

Every figure above is derived from filings made with the US Securities and Exchange Commission: Form N-PX, in which registered funds disclose how they voted every proxy and institutional managers disclose their votes on executive pay (say-on-pay, say-on-frequency and golden parachutes), and Form 8-K Item 5.07, in which the company reports its own meeting results. Shares outstanding are taken from Tetra Tech, Inc.’s 10-Q dated December 28, 2025. This page is a static snapshot rebuilt weekly on October 18, 2026; a live search always shows the current data.

At Tetra Tech, Inc.'s shareholder meeting held February 19, 2026, in the 2025-2026 proxy season, 584 asset managers reported how they voted on 9 ballot items in their SEC Form N-PX filings, covering 4,514 separate fund positions. On the most widely held item on that ballot — To approve, on an advisory basis, the Company's named executive officers' compensation. — FOR was 93% of the votes cast (FOR divided by FOR plus AGAINST, the conventional basis for proxy support; abstentions, broker non-votes and unvoted shares are excluded because none of them took a side), which is more than half. Whether the item was approved is for the filing to say; that statement has not been read for this item. Source: Tetra Tech, Inc.'s Form 8-K, Item 5.07, filed with the U.S. Securities and Exchange Commission on February 20, 2026.

Tetra Tech, Inc. proxy season coverage: 2023-2024 · 2024-2025 · 2025-2026 (this page).

Download data (CSV): ballot items · votes by manager · column guide.