Greenidge Generation Holdings Inc. 8.50% Senior Notes due 2026 NGM:GREEL
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
New Positions(5)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| JANE STREET GROUP, LLC | 44,158 | +44,158 | $65.4K | +$65.4K | — |
| Dynamic Technology Lab Private Ltd | 13,616 | +13,616 | $20.0K | +$20.0K | — |
| Tower Research Capital LLC (TRC) | 5,141 | +5,141 | $7.6K | +$7.6K | — |
| Virtu Financial LLC | 24,854 | +24,854 | $37 | +$37 | — |
| FIFTH THIRD BANCORP | 2 | +2 | $3 | +$3 | — |
Added To(9)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| UBS Group AG | 150,378 | +145,231 | $222.6K | +$213.2K | 2821.7% |
| RENAISSANCE TECHNOLOGIES LLC | 77,300 | +56,700 | $114.4K | +$76.9K | 275.2% |
| XTX Topco Ltd | 36,673 | +10,161 | $54.3K | +$6.0K | 38.3% |
| BlackRock, Inc. | 12,825 | +1 | $19.0K | -$4.4K | 0.0% |
| STATE STREET CORP | 79,050 | +12,700 | $117.0K | -$3.8K | 19.1% |
| Federation des caisses Desjardins du Quebec | 13,201 | +500 | $19.3K | -$3.3K | 3.9% |
| GSA CAPITAL PARTNERS LLP | 275,942 | +140,505 | $408 | +$162 | 103.7% |
| BANK OF AMERICA CORP /DE/ | 126 | +2 | $187 | -$39 | 1.6% |
| CITIGROUP INC | 25 | +24 | $37 | +$35 | 2400.0% |
Reduced(12)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 166,471 | 0 | $246.4K | -$56.6K | 0.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 125,665 | 0 | $186.0K | -$42.7K | 0.0% |
| NORTHERN TRUST CORP | 29,872 | 0 | $44.2K | -$10.2K | 0.0% |
| MORGAN STANLEY | 3,040 | -2,637 | $4.5K | -$5.8K | -46.5% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 17,000 | 0 | $25.2K | -$5.8K | 0.0% |
| EWA, LLC | 10,754 | -23 | $15.9K | -$3.7K | -0.2% |
| SBI Securities Co., Ltd. | 2,589 | -35 | $3.8K | -$944 | -1.3% |
| US BANCORP \DE\ | 1,012 | 0 | $1.5K | -$344 | 0.0% |
| BNP PARIBAS ARBITRAGE, SNC | 263 | 0 | $389 | -$90 | 0.0% |
| JPMORGAN CHASE & CO | 1 | 0 | $1 | -$1 | 0.0% |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | 1 | 0 | $1 | -$1 | 0.0% |
| ADVISOR GROUP HOLDINGS, INC. | 2 | 0 | $2 | $0 | 0.0% |
Sold Out(6)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| GOLDMAN SACHS GROUP INC | 0 | -31,172 | $0 | -$56.7K | — |
| BARCLAYS PLC | 0 | -37 | $0 | -$67 | — |
| NEW YORK STATE COMMON RETIREMENT FUND | 0 | -10 | $0 | -$28 | — |
| HRT FINANCIAL LP | 0 | -10,123 | $0 | -$18 | — |
| Ameritas Investment Partners, Inc. | 0 | -5 | $0 | -$9 | — |
| FMR LLC | 0 | -2 | $0 | -$4 | — |
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-12-31.
| Manager | Shares | $ Value | Δ Shares | QoQ % |
|---|---|---|---|---|
| VANGUARD GROUP INC | 166,471 | $246.4K | 0 | 0.0% |
| UBS Group AG | 150,378 | $222.6K | +145,231 | 2821.7% |
| GEODE CAPITAL MANAGEMENT, LLC | 125,665 | $186.0K | 0 | 0.0% |
| STATE STREET CORP | 79,050 | $117.0K | +12,700 | 19.1% |
| RENAISSANCE TECHNOLOGIES LLC | 77,300 | $114.4K | +56,700 | 275.2% |
| JANE STREET GROUP, LLC | 44,158 | $65.4K | +44,158 | — |
| XTX Topco Ltd | 36,673 | $54.3K | +10,161 | 38.3% |
| NORTHERN TRUST CORP | 29,872 | $44.2K | 0 | 0.0% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 17,000 | $25.2K | 0 | 0.0% |
| Dynamic Technology Lab Private Ltd | 13,616 | $20.0K | +13,616 | — |
| Federation des caisses Desjardins du Quebec | 13,201 | $19.3K | +500 | 3.9% |
| BlackRock, Inc. | 12,825 | $19.0K | +1 | 0.0% |
| EWA, LLC | 10,754 | $15.9K | -23 | -0.2% |
| Tower Research Capital LLC (TRC) | 5,141 | $7.6K | +5,141 | — |
| MORGAN STANLEY | 3,040 | $4.5K | -2,637 | -46.5% |
| SBI Securities Co., Ltd. | 2,589 | $3.8K | -35 | -1.3% |
| US BANCORP \DE\ | 1,012 | $1.5K | 0 | 0.0% |
| GSA CAPITAL PARTNERS LLP | 275,942 | $408 | +140,505 | 103.7% |
| BNP PARIBAS ARBITRAGE, SNC | 263 | $389 | 0 | 0.0% |
| BANK OF AMERICA CORP /DE/ | 126 | $187 | +2 | 1.6% |
New & Closed Positions this quarter
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for GREEL against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.