GREENIDGE GENERATION HOLDING (GREE) Institutional Shareholders
GREENIDGE GENERATION HOLDING (GREE) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $2.78M in GREE holdings during the latest filing period.
Graham Capital Management, L.P. is currently the largest disclosed institutional shareholder of GREE tracked by InsiderSet, reporting ownership valued at approximately $895,000 in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $1.42M, representing an estimated gain of +58.66% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 91% of the total disclosed GREE value among the investors covered in this analysis. Major shareholders include Graham Capital Management, L.P., Vanguard Capital Management Llc, Gsa Capital Partners Llp, and several other long-term asset managers with concentrated positions in GREENIDGE GENERATION HOLDING (GREE).
This page ranks the largest institutional GREE shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
26
Total Reported Value
$2.78M
Largest Holder
Graham Capital Management, L.P.
Largest Position
$895,000
Insider Transactions (90d)
19
Latest Filing Quarter
Q2 2026
New Institutional Positions
34
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Graham Capital Management, L.P. | 0.02% | 500,000 | $895,000 | $1,420,000 | +$525,000 | +58.66% | |
| Vanguard Capital Management Llc | 0.00% | 209,268 | $374,590 | $594,321 | +$219,731 | +58.66% | |
| Gsa Capital Partners Llp | 0.02% | 185,730 | $332,000 | $527,473 | +$195,473 | +58.88% | |
| Geode Capital Management, Llc | 0.00% | 126,147 | $225,816 | $358,257 | +$132,441 | +58.65% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 100,300 | $179,537 | $284,852 | +$105,315 | +58.66% |
| Vanguard Fiduciary Trust Co | 0.00% | 81,123 | $145,210 | $230,389 | +$85,179 | +58.66% | |
| State Street Corp | 0.00% | 79,050 | $141,500 | $224,502 | +$83,002 | +58.66% | |
| Jane Street Group, Llc | 0.00% | 48,274 | $86,411 | $137,098 | +$50,687 | +58.66% | |
| Centiva Capital, Lp | 0.00% | 46,406 | $83,067 | $131,793 | +$48,726 | +58.66% | |
| Ubs Group Ag | 0.00% | 43,131 | $77,204 | $122,492 | +$45,288 | +58.66% | |
| Northern Trust Corp | 0.00% | 30,872 | $55,261 | $87,676 | +$32,415 | +58.66% | |
| Citadel Advisors Llc | 0.00% | 20,864 | $37,347 | $59,254 | +$21,907 | +58.66% | |
| Sowell Financial Services Llc | 0.00% | 19,002 | $34,014 | $53,966 | +$19,952 | +58.66% | |
| Bridgeway Capital Management, Llc | 0.00% | 17,000 | $30,430 | $48,280 | +$17,850 | +58.66% | |
| Federation Des Caisses Desjardins Du Quebec | 0.00% | 13,201 | $23,630 | $37,491 | +$13,861 | +58.66% | |
| Blackrock, Inc. | 0.00% | 12,825 | $22,957 | $36,423 | +$13,466 | +58.66% | |
| Ewa, Llc | 0.00% | 10,673 | $19,105 | $30,311 | +$11,206 | +58.66% | |
| Morgan Stanley | 0.00% | 3,040 | $5,442 | $8,634 | +$3,192 | +58.65% | |
| Tower Research Capital Llc (Trc) | 0.00% | 2,678 | $4,794 | $7,606 | +$2,812 | +58.65% | |
| Sbi Securities Co., Ltd. | 0.00% | 2,180 | $3,902 | $6,191 | +$2,289 | +58.67% | |
| Us Bancorp \De\ | 0.00% | 1,012 | $1,811 | $2,874 | +$1,063 | +58.70% | |
| Barclays Plc | 0.00% | 263 | $471 | $747 | +$276 | +58.58% | |
| Bnp Paribas Financial Markets | 0.00% | 263 | $471 | $747 | +$276 | +58.58% | |
| Ancora Advisors Llc | 0.00% | 44 | $79 | $125 | +$46 | +58.18% | |
| Osaic Holdings, Inc. | 0.00% | 2 | $3 | $6 | +$3 | +89.33% | |
| Jpmorgan Chase & Co | 0.00% | 1 | $2 | $3 | +$1 | +42.00% |
Frequently asked questions about GREE
Who owns the most GREE stock?
The largest holders of GREE are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for GREENIDGE GENERATION HOLDING (GREE).
Is GREE widely held by superinvestors?
Many widely followed stocks like GREE appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly GREE is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.