GEOSPACE TECHNOLOGIES CORP — SD Filings
12 SD filings on record
This page lists all SD 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 12 SD 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 |
|---|---|---|---|---|
| SD | FORM SD | 0001437749-25-017928 | May 21, 2025 | — |
| SD | FORM SD | 0001437749-24-017758 | May 21, 2024 | — |
| SD | FORM SD | 0001437749-23-014885 | May 17, 2023 | — |
| SD | SD | 0001193125-22-154634 | May 19, 2022 | — |
| SD | SD | 0001193125-21-170893 | May 24, 2021 | — |
| SD | SD | 0001193125-20-144733 | May 18, 2020 | — |
| SD | FORM SD | 0001193125-19-156676 | May 24, 2019 | — |
| SD | SD | 0001193125-18-170246 | May 22, 2018 | — |
| SD | SD | 0001193125-17-166761 | May 11, 2017 | — |
| SD | SD | 0001193125-16-596882 | May 20, 2016 | — |
| SD | FORM SD | 0001193125-15-194863 | May 20, 2015 | — |
| SD | SD | 0001193125-14-222175 | Jun 2, 2014 | — |