32 institutions reported holding $1.7M of GREENIDGE GENERATION HLDGS I (GREE) in SEC 13F filings for 2026-03-31. Largest institutional holders: Graham Capital Management, L.P. ($550,000), GSA CAPITAL PARTNERS LLP ($274,000), GEODE CAPITAL MANAGEMENT, LLC ($196,077), VANGUARD CAPITAL MANAGEMENT LLC ($133,740), RENAISSANCE TECHNOLOGIES LLC ($97,130). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Graham Capital Management, L.P. | $550,000 | 500,000 | New |
| 2 | GSA CAPITAL PARTNERS LLP | $274,000 | 248,887 | Trimmed |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | $196,077 | 178,246 | Added |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $133,740 | 121,582 | New |
| 5 | RENAISSANCE TECHNOLOGIES LLC | $97,130 | 88,300 | Added |
| 6 | STATE STREET CORP | $86,955 | 79,050 | Hold |
| 7 | UBS Group AG | $54,922 | 49,929 | Trimmed |
| 8 | VANGUARD FIDUCIARY TRUST CO | $49,378 | 44,889 | New |
| 9 | XTX Topco Ltd | $41,751 | 37,955 | Added |
| 10 | Centiva Capital, LP | $41,110 | 37,373 | New |
| 11 | NORTHERN TRUST CORP | $32,787 | 29,806 | Trimmed |
| 12 | JANE STREET GROUP, LLC | $28,610 | 26,009 | Trimmed |
| 13 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $18,700 | 17,000 | Hold |
| 14 | Federation des caisses Desjardins du Quebec | $14,521 | 13,201 | Hold |
| 15 | BlackRock, Inc. | $14,107 | 12,825 | Hold |
| 16 | EWA, LLC | $11,767 | 10,697 | Trimmed |
| 17 | Dynamic Technology Lab Private Ltd | $11,431 | 10,392 | Trimmed |
| 18 | Tower Research Capital LLC (TRC) | $8,082 | 7,347 | Added |
| 19 | MORGAN STANLEY | $3,344 | 3,040 | Hold |
| 20 | SBI Securities Co., Ltd. | $2,881 | 2,619 | Added |
| 21 | Itau Unibanco Holding S.A. | $2,675 | 2,432 | New |
| 22 | US BANCORP \DE\ | $1,113 | 1,012 | Hold |
| 23 | CITIGROUP INC | $925 | 841 | Added |
| 24 | BNP PARIBAS FINANCIAL MARKETS | $289 | 263 | Hold |
| 25 | Ancora Advisors LLC | $48 | 44 | Hold |
Source: SEC Form 13F filings · as of 2026-03-31