Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000891804-05-000511
Filing Date
2005-02-11
Accepted
2005-02-11 14:39:57
Documents
1
Group Members
COLUMBIA ACORN TRUSTWAM ACQUISITION GP, INC.

Document Format Files

Seq Description Document Type Size
1 TETRA TECH, INC. tetra.txt SC 13G/A 17970
  Complete submission text file 0000891804-05-000511.txt   20338
Mailing Address 3475 EAST FOOTHILL BOULEVARD PASADENA CA 91107
Business Address 3475 EAST FOOTHILL BOULEVARD PASADENA CA 91107 6263514664
TETRA TECH INC (Subject) CIK: 0000831641 (see all company filings)

EIN.: 954148514 | State of Incorp.: DE | Fiscal Year End: 0930
Type: SC 13G/A | Act: 34 | File No.: 005-43035 | Film No.: 05597498
SIC: 8711 Services-Engineering Services

Mailing Address 227 W MONROE ST STE 3000 CHICAGO IL 60606
Business Address 227 W MONROE STREET SUITE 3000 CHICAGO IL 60606 3126349231
COLUMBIA WANGER ASSET MANAGEMENT LP (Filed by) CIK: 0000908733 (see all company filings)

EIN.: 363820584 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 0000