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Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0001258897-19-001305
Filing Date
2019-02-08
Accepted
2019-02-08 08:40:41
Documents
1

Document Format Files

Seq Description Document Type Size
1 SCHEDULE 13G/A dfs476.htm SC 13G/A 51279
  Complete submission text file 0001258897-19-001305.txt   52937
Mailing Address 6300 BEE CAVE ROAD BUILDING ONE AUSTIN TX 78746
Business Address 6300 BEE CAVE ROAD BUILDING ONE AUSTIN TX 78746 (512) 306-7400
DIMENSIONAL FUND ADVISORS LP (Filed by) CIK: 0000354204 (see all company filings)

IRS No.: 222370029 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 0000

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: 0929
Type: SC 13G/A | Act: 34 | File No.: 005-43035 | Film No.: 19577825
SIC: 8711 Services-Engineering Services