Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001085146-16-003008
Filing Date
2016-02-11
Accepted
2016-02-11 16:56:17
Documents
1

Document Format Files

Seq Description Document Type Size
1 ROBECO INVESTMENT MANAGEMENT INC. tgea1_21116.htm SC 13G/A 25475
  Complete submission text file 0001085146-16-003008.txt   27130
Mailing Address 508 WEST WALL SUITE 800 MIDLAND TX 79701
Business Address 508 WEST WALL SUITE 800 MIDLAND TX 79701 4326843000
DAWSON GEOPHYSICAL CO (Subject) CIK: 0000799165 (see all company filings)

EIN.: 742095844 | State of Incorp.: TX | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-37717 | Film No.: 161412421
SIC: 1382 Oil & Gas Field Exploration Services

Mailing Address 909 THIRD AVENUE NEW YORK NY 10022
Business Address ONE BEACON STREET BOSTON MA 02108 2129089500
Boston Partners (Filed by) CIK: 0001386060 (see all company filings)

EIN.: 980202744 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A