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CIK 0000831641 · Large accelerated filer

TETRA TECH INC

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Ticker
TTEK
Exchange
Nasdaq
Industry
Services-Engineering Services
FY end
Sep 27
Incorporated
DE
Entity type
operating
EIN
954148514
Phone
6263514664
Business address
3475 EAST FOOTHILL BOULEVARD, PASADENA, CA, 91107
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$0
in 0 filings

Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2025-11-30 CARTER BRIAN N SVP, Corporate Controller Option exercise · RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) −1,228 3,681
2025-11-30 SHOEMAKER LESLIE L EVP, Chief Sustainability Option exercise +3,035 325,846
2025-11-30 SHOEMAKER LESLIE L EVP, Chief Sustainability Option exercise +3,682 329,528
2025-11-30 SHOEMAKER LESLIE L EVP, Chief Sustainability Shares withheld for taxes −3,707 $34.74 $129K 325,821
2025-11-30 SHOEMAKER LESLIE L EVP, Chief Sustainability Option exercise · RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) −3,035 6,070
2025-11-30 SHOEMAKER LESLIE L EVP, Chief Sustainability Option exercise · RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) −3,682 11,046
2025-11-30 BURDICK STEVEN M EVP, CFO Option exercise +3,645 149,581
2025-11-30 BURDICK STEVEN M EVP, CFO Option exercise +3,682 153,263
2025-11-30 BURDICK STEVEN M EVP, CFO Shares withheld for taxes −4,044 $34.74 $140K 149,219
2025-11-30 BURDICK STEVEN M EVP, CFO Option exercise · RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) −3,645 7,285
2025-11-30 BURDICK STEVEN M EVP, CFO Option exercise · RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) −3,682 11,046
2025-11-30 BATRACK DAN L Chairman and CEO Option exercise +21,255 335,564
2025-11-30 BATRACK DAN L Chairman and CEO Option exercise +19,330 354,894
2025-11-30 BATRACK DAN L Chairman and CEO Shares withheld for taxes −22,396 $34.74 $778K 332,498
2025-11-30 BATRACK DAN L Chairman and CEO Option exercise · RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) −21,255 42,505
2025-11-30 BATRACK DAN L Chairman and CEO Option exercise · RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) −19,330 57,990
2025-11-28 Volpi Kirsten M Director Option exercise +1,000 $9.59 $10K 69,218
2025-11-28 Volpi Kirsten M Director Option exercise · STOCK OPTION (RIGHT TO BUY) −1,000 $9.59 $10K 9,000
2025-11-19 Ritrievi Kimberly E Director Grant or award · RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) +1,964 1,964
2025-11-19 Gandhi Prashant Director Grant or award · RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) +1,964 1,964

Page 4 of 16 · 310 trades