DOSSIER · 13F Holders · Q2 2026
GREE

GREENIDGE GENERATION HLDGS I

27 institutions still hold GREENIDGE GENERATION HLDGS I as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 39531G308·27 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$3M
visible holders
Holders
27
filers reporting
Concentration
33.63%
Graham Capital Management, L.P. #1
top holder share
AI Holders Summary · Q2 2026

27 institutions reported GREE in Q2 2026. Graham Capital Management, L.P. leads at 33.6% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Graham Capital Management, L.P.
CIK 0001315421
$895K500K0.02%Q2 2026
02
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$375K209K0.00%Q2 2026
03
GSA CAPITAL PARTNERS LLP
CIK 0001362033
$274K249K0.02%Q1 2026
04
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$226K126K0.00%Q2 2026
05
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
$180K100K0.00%Q2 2026
06
VANGUARD FIDUCIARY TRUST CO
CIK 0000933478· Index
$145K81K0.00%Q2 2026
07
STATE STREET CORP
CIK 0000093751
$142K79K0.00%Q2 2026
08
Centiva Capital, LP
CIK 0001692507
$83K46K0.00%Q2 2026
09
UBS Group AG
CIK 0001610520
$77K43K0.00%Q2 2026
10
NORTHERN TRUST CORP
CIK 0000073124· Index
$55K31K0.00%Q2 2026
11
CITADEL ADVISORS LLC
CIK 0001423053
$37K21K0.00%Q2 2026
12
Sowell Financial Services LLC
CIK 0001633697
$34K19K0.00%Q2 2026
13
BRIDGEWAY CAPITAL MANAGEMENT, LLC
CIK 0001107261
$30K17K0.00%Q2 2026
14
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$29K26K0.00%Q1 2026
15
Federation des caisses Desjardins du Quebec
CIK 0002022297
$24K13K0.00%Q2 2026
16
BlackRock, Inc.
CIK 0002012383
$23K13K0.00%Q2 2026
17
EWA, LLC
CIK 0001835252
$19K11K0.00%Q2 2026
18
MORGAN STANLEY
CIK 0000895421
$5K3K0.00%Q2 2026
19
Tower Research Capital LLC (TRC)
CIK 0001533421
$5K3K0.00%Q2 2026
20
SBI Securities Co., Ltd.
CIK 0001851815
$4K2K0.00%Q2 2026
Page 1 of 2
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Insiders at GREENIDGE GENERATION HLDGS I
Mulvihill ChristianKovler JordanIrwin DaleKrug Christopher J.Zeynel Charles M.Fearn Kenneth Hopkins Jr.