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The shares of common stock into which such vested RSUs converted are reported in Table I of this Form 4."}],"balance_after":0,"derivative":{"exercise_price":0,"exercise_date":"2016-11-16","expiration_date":"2016-11-16","underlying":"COMMON STOCK","underlying_shares":225},"source":{"system":"sec-edgar","filing":"0001007757-16-000009","document":"edgar.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/831641/000100775716000009/edgar.xml","form_type":"4"}},{"id":4551491,"issuer":{"id":3570,"kind":"organization","name":"TETRA TECH INC"},"owners":[{"id":121557,"kind":"person","name":"LEWIS J CHRISTOPHER","position":1,"cik":"0001007757","reported_name":"LEWIS J CHRISTOPHER","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"COMMON STOCK","published_at":"2016-11-18T02:34:43.000Z","date":"2016-11-16","kind":"exercise","acquired":true,"shares":225,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F2","text":"Represents the conversion upon vesting of restricted stock units into common stock."}],"balance_after":52760,"source":{"system":"sec-edgar","filing":"0001007757-16-000009","document":"edgar.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/831641/000100775716000009/edgar.xml","form_type":"4"}}]}