TETRA TECH INC - Form 3 Filing

This filing is a Form 3, Initial Statement of Beneficial Ownership, for Eric W. Thornburg, a director at TETRA TECH INC (TTEK). The report date is March 30, 2026, and the signature date is April 3, 2026. The filing was made by Preston Hopson, acting as attorney-in-fact for Eric W. Thornburg. The filing indicates that Mr. Thornburg is a director and does not currently hold any securities directly, as suggested by the "noSecuritiesOwned" field being set to "1". Further details on specific holdings are not provided in this initial filing.