Sphere 3D Corp. — All Filings
763 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
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10-K
10-K/A
10-Q
144
20-F
3
3/A
4
4/A
40-F
40-F/A
40FR12G
424B2
424B3
424B4
424B5
425
6-K
6-K/A
8-A12B
8-K
8-K/A
CERTNAS
CORRESP
CT ORDER
D
D/A
DEF 14A
DEFA14A
EFFECT
F-1
F-1/A
F-3
F-3/A
F-3MEF
F-4
F-4/A
F-X
F-X/A
PRE 14A
PREM14A
PRER14A
RW
S-1
S-1/A
S-3
S-3/A
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| 10-K | 10-K | 0001591956-26-000004 | Mar 27, 2026 | Dec 31, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-26-001430 | Mar 13, 2026 | Mar 11, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-26-001428 | Mar 13, 2026 | Mar 12, 2026 |
| 144 | — | 0001950047-26-002599 | Mar 13, 2026 | — |
| 8-K | FORM 8-K | 0001062993-26-001384 | Mar 11, 2026 | Mar 5, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-26-001364 | Mar 9, 2026 | Mar 4, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-26-001365 | Mar 9, 2026 | Mar 4, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-26-001362 | Mar 9, 2026 | Mar 4, 2026 |
| 8-K | FORM 8-K | 0001062993-26-001339 | Mar 9, 2026 | Mar 6, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-26-001336 | Mar 6, 2026 | Mar 4, 2026 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-26-001337 | Mar 6, 2026 | Mar 4, 2026 |
| 8-K | FORM 8-K | 0001062993-26-001199 | Feb 27, 2026 | Feb 26, 2026 |
| 8-K | FORM 8-K | 0001062993-26-000850 | Feb 12, 2026 | Feb 9, 2026 |
| 8-K | FORM 8-K | 0001062993-26-000316 | Jan 16, 2026 | Jan 15, 2026 |
| S-8 | FORM S-8 | 0001062993-26-000301 | Jan 16, 2026 | — |
| 8-K | FORM 8-K | 0001062993-25-017451 | Dec 22, 2025 | Dec 17, 2025 |
| 3 | INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-017459 | Dec 22, 2025 | Dec 17, 2025 |
| 424B3 | FORM 424B3 | 0001062993-25-017271 | Dec 10, 2025 | — |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-017276 | Dec 10, 2025 | Dec 8, 2025 |
| EFFECT | — | 9999999995-25-003639 | Dec 10, 2025 | — |
| 144 | — | 0001950047-25-009994 | Dec 9, 2025 | — |
| DEF 14A | DEF 14A | 0001591956-25-000025 | Dec 5, 2025 | Jan 15, 2026 |
| DEFA14A | DEFA14A | 0001591956-25-000026 | Dec 5, 2025 | — |
| S-3 | FORM S-3 | 0001062993-25-016980 | Nov 21, 2025 | — |
| PRE 14A | PRE 14A | 0001591956-25-000018 | Nov 18, 2025 | Jan 15, 2026 |
| SCHEDULE 13G/A | — | 0001172661-25-005170 | Nov 14, 2025 | — |
| 8-K | FORM 8-K | 0001062993-25-016743 | Nov 13, 2025 | Nov 6, 2025 |
| 8-K | FORM 8-K | 0001062993-25-016472 | Nov 5, 2025 | Nov 4, 2025 |
| 10-Q | 10-Q | 0001591956-25-000014 | Nov 4, 2025 | Sep 30, 2025 |
| 8-K | FORM 8-K | 0001062993-25-016177 | Oct 17, 2025 | Oct 16, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-015364 | Sep 5, 2025 | Sep 3, 2025 |
| 8-K | FORM 8-K | 0001062993-25-015360 | Sep 5, 2025 | Sep 3, 2025 |
| SCHEDULE 13G/A | — | 0001172661-25-003616 | Aug 14, 2025 | — |
| 8-K | FORM 8-K | 0001062993-25-013620 | Aug 6, 2025 | Aug 5, 2025 |
| 10-Q | 10-Q | 0001591956-25-000009 | Aug 5, 2025 | Jun 30, 2025 |
| S-8 | FORM S-8 | 0001062993-25-012145 | Jun 25, 2025 | — |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-011284 | Jun 9, 2025 | Jun 5, 2025 |
| 8-K | FORM 8-K | 0001062993-25-010682 | Jun 2, 2025 | May 29, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-010703 | Jun 2, 2025 | May 29, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-010704 | Jun 2, 2025 | May 29, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-010705 | Jun 2, 2025 | May 29, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-009739 | May 19, 2025 | May 15, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-009675 | May 16, 2025 | May 15, 2025 |
| 8-K | FORM 8-K | 0001062993-25-009433 | May 15, 2025 | May 14, 2025 |
| SCHEDULE 13G/A | — | 0001172661-25-002240 | May 15, 2025 | — |
| 10-Q | 10-Q | 0001591956-25-000006 | May 14, 2025 | Mar 31, 2025 |
| 8-K | FORM 8-K | 0001062993-25-008129 | Apr 28, 2025 | Apr 22, 2025 |
| 4 | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 0001062993-25-007949 | Apr 24, 2025 | Apr 22, 2025 |
| DEFA14A | DEFA14A | 0001628280-25-018224 | Apr 17, 2025 | — |
| DEF 14A | DEF 14A | 0001628280-25-018222 | Apr 17, 2025 | Dec 31, 2024 |