Sphere 3D Corp.
13F holders, Q4 2025 (December 31)23holders +4
7new positions
4sold out
1famous investor
$0.30avg. 13F price*
At the end of Q4 2025, 23 institutions reported holding Sphere 3D Corp. in their 13F filings, up 4 from Q3 2025. 7 opened new positions and 4 sold out. The largest holders were Armistice Capital, LLC ($465K), Citadel Advisors ($187K) and Vanguard Group Inc. ($131K). One famous investor held it Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Sphere 3D Corp.
- CUSIP
- 84841L407
- Latest filing quarter
- Q4 2025
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 7 | $637K |
| Exits | 4 | $22K |
All 13F filers, Q3 2025 → Q4 2025: 2,775,438 shares bought and 114,855 shares sold, net +2,660,583 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 23 holders
| Armistice Capital, LLC | 0.01% | New | 1,562,067 | $465K |
| Citadel Advisors | 0.00% | Add +121.3% | 629,278 | $187K |
| Vanguard Group Inc. | 0.00% | Reduce -7.5% | 440,410 | $131K |
| Squarepoint Ops LLC | 0.00% | New | 381,214 | $113K |
| Susquehanna International Group, LLP | 0.00% | Add +26.6% | 137,491 | $41K |
| XTX Topco Ltd | 0.00% | Add +678.6% | 131,326 | $39K |
| Jane Street Group, LLC | 0.00% | New | 123,091 | $37K |
| BNP Paribas Financial Markets | 0.00% | Add +143.6% | 122,120 | $36K |
| Virtu Financial LLC | 0.00% | Add +541.4% | 67,415 | $20K |
| Morgan Stanley | 0.00% | Add +29.7% | 50,680 | $15K |
| Citigroup Inc. | 0.00% | New | 34,302 | $10K |
| HRT Financial LP | 0.00% | New | 25,116 | $7K |
| Group One Trading LLC | 0.00% | Reduce -41.4% | 21,418 | $6K |
| StoneX Group Inc. | 0.00% | New | 17,569 | $5K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +60.6% | 8,280 | $2K |
| UBS Group AG | 0.00% | Reduce -75.1% | 2,767 | $824 |
| SBI Securities Co., Ltd. | 0.00% | No change | 2,064 | $614 |
| Simplex Trading, LLC | 0.00% | Reduce -98.5% | 384 | $114 |
| Atlantic Union Bankshares Corp | 0.00% | No change | 122 | $37 |
| Wells Fargo & Company | 0.00% | No change | 103 | $31 |
| MH & Associates Securities Management Corp. | 0.00% | — | 96 | $29 |
| Tucker Asset Management LLC | 0.00% | New | 35 | $10 |
| Royal Bank of Canada | 0.00% | Add +107.6% | 274 | $0 |
"% of holder's portfolio" is SPHERE 3D CORP's weight in each manager's 13F, not the share of Sphere 3D Corp. the manager owns.