<div id="readability-page-1"><div>Hopson Preston III Vice President of Tetra Tech Inc/CA [TTEK] filed a Form 4 on December 2, 2025 with the Securities and Exchange Commission disclosing the following changes in ownership:<div><table><tbody><tr><th>Date</th><th>Transaction</th><th>Shares</th><th>Price</th><th>Value</th></tr><tr><td>11/30/25</td><td>Exercise</td><td>5,190</td><td>$0.00</td><td>N/A</td></tr><tr><td>11/30/25</td><td>Surrender(1)</td><td>2,044</td><td>$34.74</td><td>$71,009</td></tr></tbody></table></div>Ending Holdings: 83,142 - Direct<ul><li>(1)</li><li>Surrender of shares back to company to pay option exercise cost and/or resulting tax liability.</li></ul>For a free trial, or to learn more about our insider trading analysis and data services, please visit http://www.washingtonservice.com or contact us at (301) 913-5100 or send an email to info@washingtonservice.com.Founded in 1970, The Washington Service provides securities professionals with financial, economic and public policy research and data. </div></div>

TTEK

Hopson Preston III, Vice President of Tetra Tech Inc/CA, disclosed changes in ownership through a Form 4 filing with the SEC. On November 30, 2025, he exercised 5,190 shares and surrendered 2,044 shares at $34.74 each to cover option exercise costs and tax liabilities. His ending holdings are 83,142 shares directly. This transaction highlights insider trading activities within the company.

VP Hopson III Acquires 3,146 Of Tetra Tech Inc/CA [TTEK]