HolderBook

GREENIDGE GENERATION HLDGS I (GREE)

Institutional ownership reported to the SEC as of Q1 2023, across 7 quarters.

41
Reporting holders
$1.8M
Reported value
2.1%
Held as options
+6
Holder change

Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.

Holders

FilerValueShares Their book Held Change
Oasis Management Co Ltd.$425.7K941,8620.07%newNEW
BlackRock Inc.$387.5K857,3310.00%7q+39.2%+$109.1K
VANGUARD GROUP INC$210.1K464,7600.00%7qHELD
Vident Investment Advisory, LLC$166.3K369,6310.01%5q+136.5%+$96.0K
STATE STREET CORP$131.4K290,6780.00%5q+59.5%+$49.0K
GEODE CAPITAL MANAGEMENT, LLC$87.6K193,8720.00%7q+0.8%
DEUTSCHE BANK AG\$73.4K162,4610.00%4q+2967.6%+$71.0K
SUSQUEHANNA INTERNATIONAL GROUP, LLP$65.4K61,0670.00%7q+109.3%+$34.2K
NORTHERN TRUST CORP$51.5K113,8880.00%6q+42.5%+$15.3K
FMR LLC$45.5K100,6260.00%4q+1822.9%+$43.1K
BRIDGEWAY CAPITAL MANAGEMENT, LLC$36.2K80,0000.00%7qHELD
CHARLES SCHWAB INVESTMENT MANAGEMENT INC$12.7K28,1200.00%4qHELD
Bank of New York Mellon Corp$12.4K27,3930.00%6q-23.5%-$3.8K
TWO SIGMA INVESTMENTS, LP$11.0K24,2390.00%2q-56.1%-$14.0K
MORGAN STANLEY$8.6K19,0070.00%7q-69.7%-$19.8K
GROUP ONE TRADING, L.P.$8.2K18,1710.00%newNEW
NEW YORK STATE COMMON RETIREMENT FUND$8.0K17,6000.00%4qHELD
Harvest Portfolios Group Inc.$7.1K15,7840.00%2q+68.3%+$2.9K
Invesco Ltd.$6.2K13,7650.00%6qHELD
JPMORGAN CHASE & CO$6.0K12,3790.00%6q+63.8%+$2.3K
BANK OF AMERICA CORP /DE/$5.3K11,7700.00%6q-8.5%
MILLER VALUE PARTNERS, LLC$4.5K10,0000.00%newNEW
Moss Adams Wealth Advisors LLC$4.5K10,0000.00%2qHELD
BARCLAYS PLC$3.9K8,5320.00%4q+120.9%+$2.1K
AMERICAN INTERNATIONAL GROUP, INC.$3.5K7,7990.00%4q+14.6%
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM$2.7K6,0080.00%4q+4.6%
UBS Group AG$2.3K5,0940.00%2q-52.4%-$2.5K
WELLS FARGO & COMPANY/MN$1.3K2,9110.00%newNEW
Royal Bank of Canada$1.0K1,5550.00%newNEW
Legal & General Group Plc$4861,0780.00%4qHELD
Ameritas Investment Partners, Inc.$4349600.00%4qHELD
Allspring Global Investments Holdings, LLC$3337370.00%3q-97.5%-$13.2K
CITIGROUP INC$2836250.00%2q+544.3%
Ancora Advisors, LLC$1994400.00%newNEW
RENAISSANCE TECHNOLOGIES LLC$155343,8280.00%7q-3.5%
ADVISOR GROUP HOLDINGS, INC.$1423150.00%newNEW
SIMPLEX TRADING, LLC$70155,4700.00%6q-8.3%
Baystate Wealth Management LLC$681500.00%newNEW
Advisory Services Network, LLC$681500.00%2qHELD
Virtu Financial LLC$3883,6140.00%newNEW
DARK FOREST CAPITAL MANAGEMENT LP$30670.00%newNEW
MILLENNIUM MANAGEMENT LLC$2760,0970.00%newNEW
Tower Research Capital LLC (TRC)$1021,9380.00%5q+14.3%
RHUMBLINE ADVISERS$714,7270.00%4q+0.6%
Larson Financial Group LLC$5100.00%2qHELD
AMALGAMATED BANK$23,7780.00%4qHELD
Nelson, Van Denburg & Campbell Wealth Management Group, LLC$250.00%newNEW
HAP Trading, LLC$1options only0.00%newOPTIONS

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 →

FiledFormFiler % of class
2026-07-2013D/AAtlas Capital GP LPwith 7 co-filers23.1%
2026-07-0813D/AAtlas Capital GP LPwith 7 co-filers23.1%

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.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q1 202341$1.8M3,880,840111462.1%
Q4 202235$625.4K2,084,6649893.5%
Q3 202244$7.2M3,395,367616116.2%
Q2 202250$8.9M3,230,3072015108.0%
Q1 202244$25.5M2,560,1259171014.3%
Q4 202153$86.9M3,033,2542391143.7%
Q3 202149$224.7M1,831,063480079.2%