CGG Form 6-K: Report of foreign private issuer
Filings on SEC EDGAR, newest first; amendments sit with their base form. Values are as filed.
- 2017-12-21: Form 6-K; Period of report 2017-12-21; Description 6-K; Document d509955d6k.htm.
- 2017-12-04: Form 6-K; Period of report 2017-12-04; Description 6-K; Document d505567d6k.htm.
- 2017-12-01: Form 6-K; Period of report 2017-12-01; Description 6-K; Document d504835d6k.htm.
- 2017-11-30: Form 6-K; Period of report 2017-11-30; Description 6-K; Document d543038d6k.htm.