-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, O4uCpHPHs0tzOhksqUIzTodCWzxxu2mi6Kmk01DWxrPkyYwb9JnJrTHtT/nKdhWA 29BkTT+Zoup3DtsnCkZuDw== 0000943152-97-000359.txt : 19970624 0000943152-97-000359.hdr.sgml : 19970624 ACCESSION NUMBER: 0000943152-97-000359 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 19970623 SROS: NONE SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: TETRA TECH INC CENTRAL INDEX KEY: 0000831641 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-ENGINEERING SERVICES [8711] IRS NUMBER: 954148514 STATE OF INCORPORATION: DE FISCAL YEAR END: 0930 FILING VALUES: FORM TYPE: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-43035 FILM NUMBER: 97628302 BUSINESS ADDRESS: STREET 1: 670 N ROSEMEAD BOULEVARD CITY: PASEDENA STATE: CA ZIP: 91107-2190 BUSINESS PHONE: 8184496400 MAIL ADDRESS: STREET 1: 670 N ROSEMEAD BLVD CITY: PASADENA STATE: CA ZIP: 91107 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: PILGRIM BAXTER & ASSOCIATES LTD /DE/ /ADV CENTRAL INDEX KEY: 0000943152 STANDARD INDUSTRIAL CLASSIFICATION: [] IRS NUMBER: 232797802 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 1255 DRUMMERS LANE STREET 2: STE 300 CITY: WAYNE STATE: PA ZIP: 19087 BUSINESS PHONE: 6103419000 FORMER COMPANY: FORMER CONFORMED NAME: PILGRIM BAXTER & ASSOCIATES LTD /DE/ /ADV DATE OF NAME CHANGE: 19960212 SC 13G/A 1 SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 22) 4 Amendment No. Tetra Tech, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 80162G103 (CUSIP Number) Check the following box if a fee is being paid with this statement: [ ] PAGE 1 OF 9 PAGES CUSIP NO. 80162G103 PAGE 2 OF 9 PAGES (1) NAME OF REPORTING PERSON Pilgrim Baxter & Associates, Ltd. S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON 23-2797802 (2) CHECK THE APPROPRIATE BOX IF A (A) [X] MEMBER OF A GROUP* (B) [ ] (3) SEC USE ONLY (4) CITIZENSHIP OR PLACE OF ORGANIZATION Pennsylvania NUMBER OF (5) SOLE VOTING -0- SHARES POWER OWNED BY (6) SHARED VOTING 1,450,864 REPORTING POWER PERSON (7) SOLE 1,450,864 WITH DISPOSITIVE POWER (8) SHARED -0- DISPOSITIVE POWER (9) AGGREGATE AMOUNT BENEFICIALLY 1,450,864 OWNED BY EACH REPORTING PERSON (10) CHECK BOX IF THE AGGREGATE AMOUNT [ ] IN ROW (9) EXCLUDES CERTAIN SHARES* (11) PERCENT OF CLASS REPRESENTED 9.9 BY AMOUNT IN ROW (9) (12) TYPE OF REPORTING PERSON* IA SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP NO. 80162G103 PAGE 2 OF 9 PAGES (1) NAME OF REPORTING PERSON Harold J. Baxter S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON ###-##-#### (2) CHECK THE APPROPRIATE BOX IF A (A) [X] MEMBER OF A GROUP* (B) [ ] (3) SEC USE ONLY (4) CITIZENSHIP OR PLACE OF ORGANIZATION Pennsylvania NUMBER OF (5) SOLE VOTING -0- SHARES POWER OWNED BY (6) SHARED VOTING 1,450,864 REPORTING POWER PERSON (7) SOLE 1,450,864 WITH DISPOSITIVE POWER (8) SHARED -0- DISPOSITIVE POWER (9) AGGREGATE AMOUNT BENEFICIALLY 1,450,864 OWNED BY EACH REPORTING PERSON (10) CHECK BOX IF THE AGGREGATE AMOUNT [X] IN ROW (9) EXCLUDES CERTAIN SHARES* (11) PERCENT OF CLASS REPRESENTED 9.9 BY AMOUNT IN ROW (9) (12) TYPE OF REPORTING PERSON* OO SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP NO. 80162G103 PAGE 2 OF 9 PAGES (1) NAME OF REPORTING PERSON Gary L. Pilgrim S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON ###-##-#### (2) CHECK THE APPROPRIATE BOX IF A (A) [X] MEMBER OF A GROUP* (B) [ ] (3) SEC USE ONLY (4) CITIZENSHIP OR PLACE OF ORGANIZATION Pennsylvania NUMBER OF (5) SOLE VOTING -0- SHARES POWER OWNED BY (6) SHARED VOTING 1,450,864 REPORTING POWER PERSON (7) SOLE 1,450,864 WITH DISPOSITIVE POWER (8) SHARED -0- DISPOSITIVE POWER (9) AGGREGATE AMOUNT BENEFICIALLY 1,450,864 OWNED BY EACH REPORTING PERSON (10) CHECK BOX IF THE AGGREGATE AMOUNT [X] IN ROW (9) EXCLUDES CERTAIN SHARES* (11) PERCENT OF CLASS REPRESENTED 9.9 BY AMOUNT IN ROW (9) (12) TYPE OF REPORTING PERSON* OO SEE INSTRUCTIONS BEFORE FILLING OUT! ITEM 1. (a) NAME OF ISSUER Tetra Tech, Inc. (b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES 670 North Rosemead Blvd., Pasadena, CA 91107 ITEM 2. (a) NAME OF PERSON FILING Pilgrim Baxter & Associates (b) ADDRESS OF PRINCIPAL BUSINESS OR, IF NONE, RESIDENCE 1255 Drummers Lane Suite 300, Wayne, PA 19087 (c) CITIZENSHIP Pennsylvania (d) TITLE OF CLASS OF SECURITIES Common Stock (e) CUSIP NUMBER 80162G103 ITEM 3. IF THIS STATEMENT IS FILED PURSUANT TO RULE 13d-2(b), CHECK WHETHER THE PERSON FILING IS A: (a) [ ] BROKER REGISTERED UNDER SECTION 15 OF THE ACT (b) [ ] BANK AS DEFINED IN SECTION 3(a)(6) OF THE ACT (c) [ ] INSURANCE COMPANY AS DEFINED IN SECTION 3(a0(19) OF THE ACT (d) [ ] INVESTMENT COMPANY REGISTERED UNDER SECTION 203 OF THE INVESTMENT ADVISERS ACT OF 1940 (e) [X ] INVESTMENT ADVISER REGISTERED UNDER SECTION 203 OF THE INVESTMENT ADVISERS ACT OF 1940 (f) [ ] EMPLOYEE BENEFIT PLAN, PENSION FUND WHICH IS SUBJECT TO THE PROVISIONS OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974 OR ENDOWMENT FUND; SEE 240.13d-1(b)(1)(ii)(F) (g) [ ] PARENT HOLDING COMPANY, IN ACCORDANCE WITH 240.13d-1(b)(ii)(G) (NOTE: SEE ITEM 7) (h) [ ] GROUP, IN ACCORDANCE WITH 240.13d-1(b)(1)(ii)(H) ITEM 4. OWNERSHIP (a) AMOUNT BENEFICIALLY OWNED 1,450,864 (b) PERCENT OF CLASS 9.9 (c) NUMBER OF SHARES AS TO WHICH SUCH PERSON HAS: (i) SOLE POWER TO VOTE OR DIRECT THE VOTE -0- (ii) SHARED POWER TO VOTE OR DIRECT THE VOTE 1,450,864 (iii) SOLE POWER TO DISPOSE OR DIRECT THE DISPOSITION OF 1,450,864 (iv) SHARED POWER TO DISPOSE OR TO DIRECT THE DISPOSITION OF -0- ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS IF THIS STATEMENT IS BEING FILED TO REPORT THE FACT THAT AS OF THE DATE HEREOF THE REPORTING PERSON HAS CEASED TO BE THE BENEFICIAL OWNER OF MORE THAN FIVE PERCENT OF THE CLASS OF SECURITIES, CHECK THE FOLLOWING [ ] . ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTING ON BY THE PARENT HOLDING COMPANY ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP ITEM 9. NOTICE OF DISSOLUTION OF GROUP ITEM 10. CERTIFICATION THE FOLLOWING CERTIFICATION SHALL BE INCLUDED IF THE STATEMENT IS FILED PURSUANT TO RULE 13d-1(b): BY SIGNING BELOW I CERTIFY THAT, TO THE BEST OF MY KNOWLEDGE AND BELIEF, THE SECURITIES REFERRED TO ABOVE WERE ACQUIRED IN THE ORDINARY COURSE OF BUSINESS AND WERE NOT ACQUIRED FOR THE PURPOSE OF AND DO NOT HAVE THE EFFECT OF CHANGING OR INFLUENCING THE CONTROL OF THE ISSUER OF SUCH SECURITIES AND WERE NOT ACQUIRED IN CONNECTION WITH OR AS A PARTICIPANT IN ANY TRANSACTION HAVING SUCH PURPOSES OR EFFECT. SIGNATURE AFTER REASONABLE INQUIRY AND TO THE BEST OF MY KNOWLEDGE AND BELIEF, I CERTIFY THAT THE INFORMATION SET FORTH IN THIS STATEMENT IS TRUE, COMPLETE AND CORRECT. DATE: June 20, 1997 BY: /s/ Amy Yuter TITLE: Chief Compliance Officer -----END PRIVACY-ENHANCED MESSAGE-----