GREE — GREENIDGE GENERATION HLDGS I
Reported value held$1.45M
Funds holding (latest)24
Sector—
Funds holding (Q2 2026)8
Institutional value$603.57K · 337.18K sh
New / Add / Cut / Exit2 / 2 / 2 / 1
Top-5 / Top-10 concentration95.3% / 100.0%
Institutional holdings change
Reducing -7.1%
(-25.81K sh)
Institutional value change
Up +51.2%
As of Q2 2026, 8 SEC-registered investment managers reported holding GREE (GREENIDGE GENERATION HLDGS I) in their latest 13F filings, with a combined reported value of $603.57K across 337.18K shares. That is -7.1% by share count (-25.81K shares) versus the previous quarter, while reported value moved +51.2%. Ownership is concentrated: the five largest holders account for 95.3% of reported value and the top ten for 100.0%.
Compared with the prior quarter, 2 opened new positions, 2 added to existing stakes, 2 trimmed, 1 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
| Fund | Quarter | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|---|
| Vanguard Group history | Q4 2025 | 166.47K | $246.38K | 0.00% | Hold |
| Geode Capital Management history | Q2 2026 | 126.15K | $225.82K | 0.00% | Reduce |
| Marshall Wace history | Q3 2021 | 7.96K | $203.00K | 0.00% | New |
| Two Sigma Investments history | Q4 2023 | 28.06K | $188.27K | 0.00% | New |
| Renaissance Technologies history | Q2 2026 | 100.30K | $179.54K | 0.00% | Add |
| UBS Group AG history | Q2 2026 | 43.13K | $77.20K | 0.00% | Reduce |
| AQR Capital Management history | Q3 2022 | 28.61K | $57.00K | 0.00% | New |
| Goldman Sachs Group history | Q3 2025 | 31.17K | $56.73K | 0.00% | Add |
| Northern Trust Corp history | Q2 2026 | 30.87K | $55.26K | 0.00% | Add |
| Citadel Advisors history | Q2 2026 | 20.86K | $37.35K | 0.00% | New |
| Deutsche Bank AG history | Q2 2023 | 12.17K | $34.31K | 0.00% | Reduce |
| BlackRock Inc history | Q2 2026 | 12.82K | $22.96K | 0.00% | Hold |
| Millennium Management history | Q4 2024 | 14.69K | $22.77K | 0.00% | New |
| Charles Schwab Investment Management history | Q1 2023 | 28.12K | $12.71K | 0.00% | Hold |
| BNY Mellon history | Q1 2023 | 27.39K | $12.38K | 0.00% | Reduce |
| Invesco Ltd history | Q1 2023 | 13.77K | $6.22K | 0.00% | Hold |
| Morgan Stanley history | Q2 2026 | 3.04K | $5.44K | 0.00% | Hold |
| Citigroup Inc history | Q1 2026 | 841 | $925 | 0.00% | Add |
| Legal & General Investment Management America history | Q1 2023 | 1.08K | $486 | 0.00% | Hold |
| Bank of America Corp history | Q4 2025 | 126 | $187 | 0.00% | Add |
New Positions (Q2 2026)
- Citadel Advisors 20.86K sh · $37.35K
- JPMorgan Chase & Co 1 sh · $2
Fully Exited (vs previous quarter)
- Citigroup Inc sold 841 sh · $925
Fund Position History — shares by quarter (top 20 funds)
| Fund | Q3 2021 | Q4 2021 | Q1 2022 | Q2 2022 | Q3 2022 | Q4 2022 | Q1 2023 | Q2 2023 | Q3 2023 | Q4 2023 | Q1 2024 | Q2 2024 | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Geode Capital Management | 16.80K | 73.19K | 77.67K | 191.88K | 192.18K | 192.31K | 193.87K | 14.26K | 27.38K | 37.25K | 57.87K | 60.73K | 78.17K | 85.97K | 91.14K | 97.32K | 125.67K | 125.67K | 178.25K | 126.15K |
| Renaissance Technologies | 414.28K | 68.80K | 242.78K | 418.50K | 308.80K | 356.45K | 343.83K | — | — | 52.70K | — | — | — | — | — | — | 20.60K | 77.30K | 88.30K | 100.30K |
| UBS Group AG | 3.24K | 26 | 25 | 236 | 25 | 10.70K | 5.09K | 22 | 22 | 22 | 301 | 5.70K | 7.31K | 5.24K | 13.44K | 40.07K | 5.15K | 150.38K | 49.93K | 43.13K |
| Northern Trust Corp | — | 14.78K | 14.78K | 96.72K | 107.66K | 79.95K | 113.89K | — | — | — | — | — | — | — | — | — | 29.87K | 29.87K | 29.81K | 30.87K |
| Citadel Advisors | 553.52K | 377.09K | 169.40K | 150.75K | 74.46K | 100.93K | — | — | — | — | — | — | — | — | — | 27.13K | — | — | — | 20.86K |
| BlackRock Inc | — | — | — | — | — | — | — | — | — | — | — | — | 12.82K | 12.82K | 12.82K | 12.82K | 12.82K | 12.82K | 12.82K | 12.82K |
| Morgan Stanley | 10.78K | 13.94K | 26.80K | 39.35K | 76.76K | 62.82K | 19.01K | 1.19K | 1.21K | 3.09K | 3.42K | 2.70K | 2.68K | 5.68K | 5.68K | 18.54K | 5.68K | 3.04K | 3.04K | 3.04K |
| JPMorgan Chase & Co | 15 | 1.54K | 8.00K | 6.86K | 6.86K | 7.57K | 15 | 1 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | 1 |
| Fidelity Management & Research (FMR) | 1 | 392.90K | — | 590 | 1.04K | 5.23K | 50.31K | 431 | 431 | 430 | 440 | 25 | 1 | — | 20 | — | 2 | — | — | — |
| Goldman Sachs Group | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 13.60K | 31.17K | — | — | — |
| Bank of America Corp | 6 | 402 | 636 | 1.53K | 2.53K | 12.86K | 11.77K | 36 | 17.04K | 39 | 35 | 77 | 83 | 88 | 93 | 139 | 124 | 126 | — | — |
| Citigroup Inc | 319 | 12.00K | 21.85K | 1.29K | 203 | 97 | 625 | 593 | 591 | 590 | 548 | 1 | 1 | 1 | 7.28K | 1 | 1 | 25 | 841 | — |
| Vanguard Group | 83.82K | 427.45K | 443.01K | 490.26K | 472.73K | 462.48K | 464.76K | 54.84K | 89.88K | 186.50K | 207.50K | 207.50K | 229.97K | 229.97K | 152.46K | 73.18K | 166.47K | 166.47K | — | — |
| Deutsche Bank AG | — | — | — | 6.06K | 23.75K | 5.30K | 162.46K | 12.17K | — | — | — | — | — | — | — | — | — | — | — | — |
| Two Sigma Investments | — | — | — | — | — | 55.27K | 24.24K | — | — | 28.06K | — | — | — | — | — | — | — | — | — | — |
| AQR Capital Management | — | — | — | — | 28.61K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| BNY Mellon | — | 13.66K | 14.99K | 42.85K | 48.53K | 35.80K | 27.39K | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Invesco Ltd | — | 19.19K | 27.61K | 57.44K | 75.90K | 13.76K | 13.77K | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Lazard Asset Management | — | — | 8 | 55 | 184 | — | — | — | 44 | — | — | — | — | — | — | — | — | — | — | — |
| Legal & General Investment Management America | — | — | — | 1.08K | 1.08K | 1.08K | 1.08K | — | — | — | — | — | — | — | — | — | — | — | — | — |