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Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0000867262-09-000012
Filing Date
2009-09-01
Accepted
2009-09-01 16:46:40
Documents
1

Document Format Files

Seq Description Document Type Size
1 GW CAPITAL IO 13GA gw13gio.txt SC 13G/A 950
  Complete submission text file 0000867262-09-000012.txt   2957
Mailing Address 2105 CITYWEST BLVD SUITE 400 HOUSTON TX 770422839
Business Address 2105 CITYWEST BLVD SUITE 400 HOUSTON TX 770422839 281.933.3339
ION GEOPHYSICAL CORP (Subject) CIK: 0000866609 (see all company filings)

IRS No.: 222286646 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-41602 | Film No.: 091049003
SIC: 1382 Oil & Gas Field Exploration Services

Mailing Address 10900 NE 8TH ST #1010 BELLEVUE WA 98004
Business Address 10900 NE EIGHTH ST STE 1010 BELLEVUE WA 98004-4405 4254554551
GW CAPITAL INC (Filed by) CIK: 0000867262 (see all company filings)

IRS No.: 680204817 | State of Incorp.: WA | Fiscal Year End: 1231
Type: SC 13G/A