Changes in Beneficial Ownership · 4
Tetra Tech, Inc.
TTEKNASDAQEQUITYCurrent
Changes in Beneficial Ownership
Structured filing — 4
wk-form4_1771632243.xml
Filing details
- Report period
- 2026-02-19
- Issuer
- TETRA TECH INC
- Issuer CIK
- 0000831641
- Trading symbol
- TTEK
- No longer subject to Section 16
- Checked
Reporting owner 1
- Name
- Obiaya Christiana
- Reporting owner CIK
- 0001902712
- Relationship
- Director
- Address
- 3475 E. FOOTHILL BLVD., PASADENA, CA, 91107
Non-derivative transactions
| Security | Transaction date | Code | Amount | A / D | Price (USD) | Owned after | Ownership |
|---|---|---|---|---|---|---|---|
| COMMON STOCK | 2026-02-19 | M · Form 4 | 495 | A | 0 | 9,666 | D |
Table key
- M · Form 4
- Exempt derivative exercise or conversion under Rule 16b-3
- A
- Acquired
- D
- Direct
Derivative transactions
| Security | Conversion / exercise price (USD) | Transaction date | Code | Amount | A / D | Price (USD) | Exercisable | Expires | Underlying security | Underlying shares | Owned after | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RESTRICTED STOCK UNITS (RIGHT TO RECEIVE) | [F1] | 2026-02-19 | M · Form 4 | 495 | D | 0 | 2026-11-30[F2] | [F3] | COMMON STOCK | 495 | 0[F4] | D |
Table key
- M · Form 4
- Exempt derivative exercise or conversion under Rule 16b-3
- D
- Direct
Footnotes
- F1
- Represents an award of restricted stock units (RSUs), each unit of which represents a contingent right to receive one share of Tetra Tech common stock.↩ 1
- F2
- Vesting of the RSUs, which was initially scheduled for November 18, 2026, was accelerated on the Reporting Person's retirement from the Issuer's board of directors.↩ 1
- F3
- The RSUs are exercisable at the time of vesting and do not have a set expiration date.↩ 1
- F4
- Balance of 1,469 RSUs were cancelled upon retirement.↩ 1
Signature 1
- Signed
- /s/ Preston Hopson, Attorney-in-Fact for Christiana Obiaya
- Date
- 2026-02-20
Company context
Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide. With more than 25,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science® to address the entire water cycle, protect and restore the environment, and design sustainable and resilient infrastructure. For more information about Tetra Tech, please visit tetratech.com or follow us on LinkedIn and Facebook.