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Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000914208-10-000161
Filing Date
2010-02-12
Accepted
2010-02-12 16:31:05
Documents
1

Document Format Files

Seq Description Document Type Size
1 TETRA TECH, INC. tetratechinc123109.htm SC 13G/A 44439
  Complete submission text file 0000914208-10-000161.txt   46659
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)

IRS No.: 954148514 | State of Incorp.: DE | Fiscal Year End: 0928
Type: SC 13G/A | Act: 34 | File No.: 005-43035 | Film No.: 10599906
SIC: 8711 Services-Engineering Services

Mailing Address 1555 PEACHTREE STREET NE SUITE 1800 ATLANTA GA 30309
Business Address 1555 PEACHTREE STREET NE SUITE 1800 ATLANTA GA 30309 404-892-0896
Invesco Ltd. (Filed by) CIK: 0000914208 (see all company filings)

IRS No.: 980557567 | State of Incorp.: D0 | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 6282 Investment Advice