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TETRA TECH INC Director's Dealing 2012

Aug 10, 2012

30629_dirs_2012-08-10_45666b1a-b1f2-459b-bbdb-2c1008aa67f4.zip

Director's Dealing

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SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TETRA TECH INC (TTEK)
CIK: 0000831641
Period of Report: 2012-08-09

Reporting Person: BIEBER MICHAEL A (SENIOR VICE PRESIDENT)

Non-Derivative Transactions

Date Security Code Shares Price A/D Holdings After Ownership
2012-08-09 COMMON STOCK M 1966 $11.80 Acquired 14814 Direct
2012-08-09 COMMON STOCK S 1966 $26.2705 Disposed 12848 Direct

Derivative Transactions

Date Security Exercise Price Code Shares A/D Expiration Underlying Ownership
2012-08-09 EMPLOYEE STOCK OPTION (RIGHT TO BUY) $11.80 M 1966 Disposed 2013-01-20 COMMON STOCK (1966) Direct

Footnotes

F1: The option was fully vested as of January 20, 2007.