GREENIDGE GENERATION HLDGS I (GREE)
Institutional ownership reported to the SEC as of Q1 2023, across 7 quarters.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Oasis Management Co Ltd. | $425.7K | 941,862 | 0.07% | new | NEW |
| BlackRock Inc. | $387.5K | 857,331 | 0.00% | 7q | +39.2%+$109.1K |
| VANGUARD GROUP INC | $210.1K | 464,760 | 0.00% | 7q | HELD |
| Vident Investment Advisory, LLC | $166.3K | 369,631 | 0.01% | 5q | +136.5%+$96.0K |
| RENAISSANCE TECHNOLOGIES LLC | $155.0K | 343,828 | 0.00% | 7q | -3.5%-$5.7K |
| STATE STREET CORP | $131.4K | 290,678 | 0.00% | 5q | +59.5%+$49.0K |
| GEODE CAPITAL MANAGEMENT, LLC | $87.6K | 193,872 | 0.00% | 7q | +0.8% |
| DEUTSCHE BANK AG\ | $73.4K | 162,461 | 0.00% | 4q | +2967.6%+$71.0K |
| SIMPLEX TRADING, LLC | $70.0K | 155,470 | 0.00% | 6q | -8.3%-$6.4K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $65.4K | 61,067 | 0.00% | 7q | +109.3%+$34.2K |
| NORTHERN TRUST CORP | $51.5K | 113,888 | 0.00% | 6q | +42.5%+$15.3K |
| FMR LLC | $45.5K | 100,626 | 0.00% | 4q | +1822.9%+$43.1K |
| Virtu Financial LLC | $38.0K | 83,614 | 0.00% | new | NEW |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $36.2K | 80,000 | 0.00% | 7q | HELD |
| MILLENNIUM MANAGEMENT LLC | $27.0K | 60,097 | 0.00% | new | NEW |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $12.7K | 28,120 | 0.00% | 4q | HELD |
| Bank of New York Mellon Corp | $12.4K | 27,393 | 0.00% | 6q | -23.5%-$3.8K |
| TWO SIGMA INVESTMENTS, LP | $11.0K | 24,239 | 0.00% | 2q | -56.1%-$14.0K |
| Tower Research Capital LLC (TRC) | $10.0K | 21,938 | 0.00% | 5q | +14.3%+$1.2K |
| MORGAN STANLEY | $8.6K | 19,007 | 0.00% | 7q | -69.7%-$19.8K |
| GROUP ONE TRADING, L.P. | $8.2K | 18,171 | 0.00% | new | NEW |
| NEW YORK STATE COMMON RETIREMENT FUND | $8.0K | 17,600 | 0.00% | 4q | HELD |
| Harvest Portfolios Group Inc. | $7.1K | 15,784 | 0.00% | 2q | +68.3%+$2.9K |
| RHUMBLINE ADVISERS | $7.0K | 14,727 | 0.00% | 4q | +0.6% |
| Invesco Ltd. | $6.2K | 13,765 | 0.00% | 6q | HELD |
| JPMORGAN CHASE & CO | $6.0K | 12,379 | 0.00% | 6q | +63.8%+$2.3K |
| BANK OF AMERICA CORP /DE/ | $5.3K | 11,770 | 0.00% | 6q | -8.5% |
| MILLER VALUE PARTNERS, LLC | $4.5K | 10,000 | 0.00% | new | NEW |
| Moss Adams Wealth Advisors LLC | $4.5K | 10,000 | 0.00% | 2q | HELD |
| BARCLAYS PLC | $3.9K | 8,532 | 0.00% | 4q | +120.9%+$2.1K |
| AMERICAN INTERNATIONAL GROUP, INC. | $3.5K | 7,799 | 0.00% | 4q | +14.6% |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $2.7K | 6,008 | 0.00% | 4q | +4.6% |
| UBS Group AG | $2.3K | 5,094 | 0.00% | 2q | -52.4%-$2.5K |
| AMALGAMATED BANK | $2.0K | 3,778 | 0.00% | 4q | HELD |
| WELLS FARGO & COMPANY/MN | $1.3K | 2,911 | 0.00% | new | NEW |
| Royal Bank of Canada | $1.0K | 1,555 | 0.00% | new | NEW |
| HAP Trading, LLC | $1.0K | options only | 0.00% | new | OPTIONS |
| Legal & General Group Plc | $486 | 1,078 | 0.00% | 4q | HELD |
| Ameritas Investment Partners, Inc. | $434 | 960 | 0.00% | 4q | HELD |
| Allspring Global Investments Holdings, LLC | $333 | 737 | 0.00% | 3q | -97.5%-$13.2K |
| CITIGROUP INC | $283 | 625 | 0.00% | 2q | +544.3% |
| Ancora Advisors, LLC | $199 | 440 | 0.00% | new | NEW |
| ADVISOR GROUP HOLDINGS, INC. | $142 | 315 | 0.00% | new | NEW |
| Baystate Wealth Management LLC | $68 | 150 | 0.00% | new | NEW |
| Advisory Services Network, LLC | $68 | 150 | 0.00% | 2q | HELD |
| DARK FOREST CAPITAL MANAGEMENT LP | $30 | 67 | 0.00% | new | NEW |
| Larson Financial Group LLC | $5 | 10 | 0.00% | 2q | HELD |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | $2 | 5 | 0.00% | new | NEW |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-07-20 | 13D/A | Atlas Capital GP LPwith 7 co-filers | 23.1% |
| 2026-07-08 | 13D/A | Atlas Capital GP LPwith 7 co-filers | 23.1% |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-10 | Rogers George Ted III | Director | Bought | 2,923,976 | $5.0M |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q1 2023 | 48 | $2.1M | 4,564,292 | 13 | 16 | 8 | 1.8% |
| Q4 2022 | 41 | $853.4K | 2,848,193 | 9 | 11 | 11 | 3.5% |
| Q3 2022 | 44 | $7.2M | 3,395,367 | 6 | 16 | 11 | 6.2% |
| Q2 2022 | 50 | $8.9M | 3,230,307 | 20 | 15 | 10 | 8.0% |
| Q1 2022 | 44 | $25.5M | 2,560,125 | 9 | 17 | 10 | 14.3% |
| Q4 2021 | 53 | $86.9M | 3,033,254 | 23 | 9 | 11 | 43.7% |
| Q3 2021 | 49 | $224.7M | 1,831,063 | 48 | 0 | 0 | 79.2% |