Greenidge Generation Holdings Inc. — SCHEDULE 13D/A Filings
3 SCHEDULE 13D/A filings on record
This page lists all SCHEDULE 13D/A filings submitted to the SEC by Greenidge Generation Holdings Inc. (GREEL), sorted by most recent first. Each row links to the full filing on EdgarLookup. Greenidge Generation Holdings Inc. has filed 3 SCHEDULE 13D/A documents with the SEC since 2021. To view all SEC filings by Greenidge Generation Holdings Inc., see the full filings list.
All
10-K
10-K/A
10-Q
144
3
4
4/A
424B3
424B4
424B5
425
8-A12B
8-K
8-K/A
ARS
AW
CERT
CORRESP
D
DEF 14A
DEF 14C
DEFA14A
EFFECT
FWP
NT 10-K
POS AM
POS EX
PRE 14A
PREC14C
S-1
S-1/A
S-1MEF
S-3
S-3/A
S-4
S-4/A
S-8
SC 13D
SC 13D/A
SC 13G
SC TO-I
SC TO-I/A
SCHEDULE 13D/A
SEC STAFF ACTION
T-3
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13D/A | — | 0001193125-26-010359 | Jan 12, 2026 | — |
| SCHEDULE 13D/A | — | 0000950170-25-094404 | Jul 7, 2025 | — |
| SCHEDULE 13D/A | — | 0000950170-25-010069 | Jan 28, 2025 | — |