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SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
FORM 10-C
REPORT BY ISSUER OF SECURITIES QUOTED ON NASDAQ
INTERDEALER QUOTATION SYSTEM
FILED PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934 AND RULE 13a-17
OR 15d-17 THEREUNDER
Tetra Tech, Inc.
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(Exact name of issuer as specified in charter)
630 N. Rosemead Boulevard, Pasadena, California 91107-2190
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(Address of principal executive offices)
Issuer's telephone number, including area code (818) 449-6400
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I. CHANGE IN NUMBER OF SHARES OUTSTANDING
Indicate any change (increase or decrease) of five percent or more in the number
of shares outstanding:
1. Title of security Common Stock, $.01 par value
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2. Number of shares outstanding before the change 11,273,081
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3. Number of shares outstanding after the change 14,091,351
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4. Effective date of change June 21, 1996
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5. Method of change: Specify method (such as merger, acquisition, exchange,
distribution, stock split, reverse split, acquisition of
stock for treasury, etc.)
stock split
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Give brief description of transaction 5 for 4 stock split, effected in the form
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of a 25% stock dividend
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II. CHANGE IN NAME OF ISSUER
1. Name prior to change
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2. Name after change
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3. Effective date of charter amendment changing name
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4. Date of shareholder approval of change, if required
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Date 6/26/96 /s/ Li-San Hwang
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(Officer's signature and title)
Li-San Hwang
President and Chief Executive
Officer
