Greenidge Generation Holdings Inc.
Greenidge Generation Holdings Inc. (GREE) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · GREE · as of Sep 30, 2025
Ownership Breakdown
27
Institutional Holders
▼ 3 vs Q2
$1.24M
Total Inst. Value
▲ $479,755 vs Q2
18.02M
Shares Outstanding
freeFloat 67.22%
680,444
13F Shares Held
▲ 93,522 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
GREE largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC services-computer processing & data preparation | 166.5K | 1.09% | 1.09% | $302.98M | Nov 7, 2025 | ▲ 93.3K |
GSA CAPITAL PARTNERS LLP services-computer processing & data preparation | 135.4K | 88.83% | 88.83% | $246.00M | Nov 7, 2025 | ▲ 16.9K |
GEODE CAPITAL MANAGEMENT, LLC services-computer processing & data preparation | 125.7K | 82.42% | 82.42% | $228.72M | Nov 12, 2025 | ▲ 28.3K |
STATE STREET CORP services-computer processing & data preparation | 66.3K | 43.52% | 43.52% | $120.76M | Nov 14, 2025 | ▲ 48.7K |
GOLDMAN SACHS GROUP INC services-computer processing & data preparation | 31.2K | 20.45% | 20.45% | $56.73M | Nov 14, 2025 | ▲ 17.6K |
NORTHERN TRUST CORP services-computer processing & data preparation | 29.9K | 19.59% | 19.59% | $54.37M | Nov 14, 2025 | NEW |
XTX TOPCO LTD services-computer processing & data preparation | 26.5K | 17.39% | 17.39% | $48.25M | Nov 14, 2025 | ▼ 5.6K |
RENAISSANCE TECHNOLOGIES LLC services-computer processing & data preparation | 20.6K | 13.51% | 13.51% | $37.49M | Nov 13, 2025 | NEW |
BRIDGEWAY CAPITAL MANAGEMENT, LLC services-computer processing & data preparation | 17.0K | 11.15% | 11.15% | $30.94M | Nov 14, 2025 | — held |
BLACKROCK, INC. services-computer processing & data preparation | 12.8K | 8.41% | 8.41% | $23.34M | Nov 12, 2025 | — held |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
8
Increased
+225.4K shares3
New Positions
first time holders6
Decreased
−54.2K shares8
Sold Out
fully exitedNet shares change (top 50)
+171.3K
+225.4K / −54.2K
Net new holders
-3
3 new / 8 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
GREE insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
4
Buy transactions
7
Sell transactions
0.57
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Atlas Capital Resources GP LLC
| Apr 9, 2026 | J-Other | 114,865 | $1.39 | $159.7K | 4.07M | Form 4 ↗ |
Irwin Dale President | Mar 4, 2026 | Award | 110,000 | — | — | 213.3K | Form 4 ↗ |
Irwin Dale President | Mar 11, 2026 | Tax Withhold | 39,655 | $1.38 | $54.7K | 173.6K | Form 4 ↗ |
Kovler Jordan Chief Executive Officer | Mar 4, 2026 | Award | 110,000 | — | — | 262.9K | Form 4 ↗ |
Kovler Jordan Chief Executive Officer | Mar 11, 2026 | Tax Withhold | 26,785 | $1.38 | $37.0K | 236.1K | Form 4 ↗ |
Mulvihill Christian Chief Financial Officer | Mar 4, 2026 | Award | 95,000 | — | — | 190.5K | Form 4 ↗ |
Mulvihill Christian Chief Financial Officer | Mar 11, 2026 | Tax Withhold | 34,010 | $1.38 | $46.9K | 156.4K | Form 4 ↗ |
Mulvihill Christian Chief Financial Officer | Feb 2, 2026 | Sale | 5 | $1.25 | $6.25 | 97.4K | Form 4 ↗ |
Mulvihill Christian Chief Financial Officer | Feb 2, 2026 | Sale | 1,953 | $1.28 | $2.5K | 95.5K | Form 4 ↗ |
Irwin Dale President | Feb 2, 2026 | Sale | 6 | $1.26 | $7.56 | 105.3K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Greenidge Generation Holdings Inc. (GREE) is primarily owned by institutional investors, who hold approximately 3.8% of total shares outstanding. Company insiders own approximately 32.78%, while retail and public investors account for the remaining 63.45%.
The largest institutional shareholder of Greenidge Generation Holdings Inc. is VANGUARD GROUP INC, holding approximately 166,471 shares — equal to 1.09% of outstanding shares — as of September 30, 2025.
A total of 27 institutional investors currently hold GREE stock, with a combined institutional value of approximately $1,236,993 as of the most recent 13F filing period.
Frequently asked questions
GREE ownershipGreenidge Generation Holdings Inc. (GREE) is primarily owned by institutional investors, who hold approximately 3.8% of shares. The largest shareholder is VANGUARD GROUP INC with a 1.09% stake. Company insiders hold 32.78%. Data sourced from SEC Form 13F as of September 30, 2025.