SVP, Corporate Controller Carter Brian N converted options into 5,008 shares, covered exercise/tax liability with 8,711 shares and was granted 10,954 shares, increasing direct ownership by 15% to 56,475 units (SEC Form 4)
$TTEK
Military/Government/Technical
Consumer Discretionary
| FORM 4 |
UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940 |
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| Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). | |||||||||||||||||
| Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10. | |||||||||||||||||
1. Name and Address of Reporting Person*
(Street)
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2. Issuer Name and Ticker or Trading Symbol
TETRA TECH INC [ TTEK ] |
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
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3. Date of Earliest Transaction
(Month/Day/Year) 11/18/2025 | ||||||||||||||||||||||||||
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4. If Amendment, Date of Original Filed
(Month/Day/Year) |
6. Individual or Joint/Group Filing (Check Applicable Line)
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| Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned | ||||||||||
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| 1. Title of Security (Instr. 3) | 2. Transaction Date (Month/Day/Year) | 2A. Deemed Execution Date, if any (Month/Day/Year) | 3. Transaction Code (Instr. 8) | 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) | 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) | 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) | 7. Nature of Indirect Beneficial Ownership (Instr. 4) | |||
| Code | V | Amount | (A) or (D) | Price | ||||||
| COMMON STOCK | 11/18/2025 | M | 995 | A | $0 | 50,219 | D | |||
| COMMON STOCK | 11/18/2025 | M | 1,265 | A | $0 | 51,484 | D | |||
| COMMON STOCK | 11/18/2025 | F | 1,234(1) | D | $35.69 | 50,250 | D | |||
| COMMON STOCK | 11/18/2025 | A | 10,954(2) | A | $0 | 61,204 | D | |||
| COMMON STOCK | 11/18/2025 | F | 5,977(3) | D | $35.69 | 55,227 | D | |||
| COMMON STOCK | 11/30/2025 | M | 1,520 | A | $0 | 56,747 | D | |||
| COMMON STOCK | 11/30/2025 | M | 1,228 | A | $0 | 57,975 | D | |||
| COMMON STOCK | 11/30/2025 | F | 1,500(4) | D | $34.74 | 56,475 | D | |||
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) | |||||||||||||||
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| 1. Title of Derivative Security (Instr. 3) | 2. Conversion or Exercise Price of Derivative Security | 3. Transaction Date (Month/Day/Year) | 3A. Deemed Execution Date, if any (Month/Day/Year) | 4. Transaction Code (Instr. 8) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) | 6. Date Exercisable and Expiration Date (Month/Day/Year) | 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) | 8. Price of Derivative Security (Instr. 5) | 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) | 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) | 11. Nature of Indirect Beneficial Ownership (Instr. 4) | ||||
| Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | ||||||||
| RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | (5) | 11/18/2025 | M | 995 | 11/18/2022(6) | (7) | COMMON STOCK | 995 | $0 | 0 | D | ||||
| RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | (5) | 11/18/2025 | M | 1,265 | 11/18/2023(8) | (7) | COMMON STOCK | 1,265 | $0 | 1,265 | D | ||||
| RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | (5) | 11/19/2025 | A | 5,612 | 11/30/2026(9) | (7) | COMMON STOCK | 5,612 | $0 | 5,612 | D | ||||
| RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | (5) | 11/30/2025 | M | 1,520 | 11/30/2024(10) | (7) | COMMON STOCK | 1,520 | $0 | 3,030 | D | ||||
| RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | (5) | 11/30/2025 | M | 1,228 | 11/30/2025(11) | (7) | COMMON STOCK | 1,228 | $0 | 3,681 | D | ||||
| Explanation of Responses: |
| 1. Represents the shares withheld to pay the related tax liability of the restricted stock units (RSUs) that vested on November 18, 2025. |
| 2. Shares acquired pursuant to vesting of performance stock units earned under 2018 Equity Incentive Plan. |
| 3. Represents the shares withheld to pay the related tax liability of performance stock units that vested on November 18, 2025. |
| 4. Represents the shares withheld to pay the related tax liability of the restricted stock units (RSUs) that vested on November 30, 2025. |
| 5. Represents an award of RSUs, each unit of which represents a contingent right to receive one share of Tetra Tech common stock. |
| 6. The RSUs become vested as to 25% of the shares on November 18, 2022, and 25% annually, thereafter, until fully vested. |
| 7. The RSUs are exercisable at the time of vesting and do not have a set expiration date. |
| 8. The RSUs become vested as to 25% of the shares on November 18, 2023, and 25% annually, thereafter, until fully vested. |
| 9. The RSUs become vested as to 25% of the shares on November 30, 2026, and 25% annually, thereafter, until fully vested. |
| 10. The RSUs become vested as to 25% of the shares on November 30, 2024, and 25% annually, thereafter, until fully vested. |
| 11. The RSUs become vested as to 25% of the shares on November 30, 2025, and 25% annually, thereafter, until fully vested. |
| Remarks: |
| /s/ Preston Hopson, Attorney-in-fact for Brian N. Carter | 12/02/2025 | |
| ** Signature of Reporting Person | Date | |
| Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. | ||
| * If the form is filed by more than one reporting person, see Instruction 4 (b)(v). | ||
| ** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a). | ||
| Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure. | ||
| Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number. | ||