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Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0000357235-09-000109
Filing Date
2009-02-13
Accepted
2009-02-13 15:40:35
Documents
1

Document Format Files

Seq Description Document Type Size
1 ION GEOPHYSICAL iongeophysical.txt SC 13G/A 4939
  Complete submission text file 0000357235-09-000109.txt   6964
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.: 09602984
SIC: 3829 Measuring & Controlling Devices, NEC

Mailing Address 620 8TH AVENUE NEW YORK NY 10018
Business Address 620 8TH AVENUE NEW YORK NY 10018 800-691-6959
Clearbridge Advisors, LLC (Filed by) CIK: 0001348883 (see all company filings)

IRS No.: 010846058
Type: SC 13G/A