SEC Form 4 · accession 0001582882-26-000004
TETRA TECH INC · TTEK
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Kirsten M Volpi
Director
Period of report
Aug 4, 2026
Accepted (ET)
Aug 6, 2026 · 5:17 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0000831641
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| COMMON STOCK | Aug 4, 2026 | M | 2,300 | $9.59 | A | 74,218 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| STOCK OPTION (RIGHT TO BUY)F1 | $9.59 | Aug 4, 2026 | M | 2,300 | D | Nov 17, 2018 | Nov 18, 2027 | COMMON STOCK | 2,300 | 4,000 | D |
Explanation of responses
- F1The option becomes exercisable as to 100% of the shares on the anniversary of the grant date.