GEOSPACE TECHNOLOGIES CORP — SC 13D Filings
5 SC 13D filings on record
This page lists all SC 13D filings submitted to the SEC by GEOSPACE TECHNOLOGIES CORP (GEOS), sorted by most recent first. Each row links to the full filing on EdgarLookup. GEOSPACE TECHNOLOGIES CORP has filed 5 SC 13D documents with the SEC since 1997. To view all SEC filings by GEOSPACE TECHNOLOGIES CORP, see the full filings list.
All
10-K
10-K/A
10-K405
10-Q
10-Q/A
144
3
3/A
4
4/A
424B1
424B3
424B4
8-A12B
8-K
8-K/A
ARS
CORRESP
DEF 14A
DEFA14A
EFFECT
FWP
NT 10-Q
PRE 14A
S-1
S-1/A
S-3
S-3/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SC 13D | SCHEDULE 13D DATED MAY 26, 2020 | 0001013594-20-000520 | May 27, 2020 | — |
| SC 13D | SC 13D | 0001445866-20-000141 | Feb 18, 2020 | — |
| SC 13D | SC 13D FILING STATEMENT | 0001659213-18-000002 | Apr 3, 2018 | — |
| SC 13D | PEBBLETON CORPORATION N.V. FOR OYO GEOSPACE CORP. | 0000950129-98-005022 | Dec 14, 1998 | — |
| SC 13D | SCHEDULE 13D ON R. CHANEY & PARTNERS III L.P. | 0000950134-97-009335 | Dec 15, 1997 | — |