Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000914208-11-000231
Filing Date
2011-02-14
Accepted
2011-02-14 08:04:47
Documents
1

Document Format Files

Seq Description Document Type Size
1 TETRA TECH, INC. tetratech123110.htm SC 13G/A 40790
  Complete submission text file 0000914208-11-000231.txt   43010
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: 0928
Type: SC 13G/A | Act: 34 | File No.: 005-43035 | Film No.: 11602200
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)

EIN.: 980557567 | State of Incorp.: D0 | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 6282 Investment Advice