NASDAQ:GREEL

Greenidge Generation Holdings . 8.50% Senior Notes Due 2026 Stock Insider Trading

Technology > Software - Application

Buy GREEL

*Your capital is at risk

$21.20

-0.400 (-1.85%)

At Close: Jun 03, 2026

Greenidge Generation Holdings . 8.50% Senior Notes Due 2026 Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 88.86. In total, the insiders bought 3.05M and sold 230.1K GREEL shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	88.86
● Buy	3.05M shares
● Sell	230.1K shares
53% Buy Activity Weak Positive Correlation
Buy Signal Medium Confidence Mar 04, 2026 Analysis Breakdown: Strongly supported by a very high Insider Power Score of 88.86. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Apr 09, 2026 Buy	Class A Common Stock, par value $0.0001 per share J-Other	Atlas Capital Resources Gp Llc	Director	114 865 Value: $159.7K
Mar 11, 2026 Sell	Class A Common Stock F-InKind	Mulvihill Christian Chief Financial Officer	C-Suite Officer	34 010 Value: $46.9K
Mar 11, 2026 Sell	Class A Common Stock F-InKind	Kovler Jordan Chief Executive Officer	CEO / President	26 785 Value: $37.0K
Mar 11, 2026 Sell	Class A Common Stock F-InKind	Irwin Dale President	CEO / President	39 655 Value: $54.7K
Mar 04, 2026 Buy	Class A Common Stock A-Award	Mulvihill Christian Chief Financial Officer	C-Suite Officer	95 000 Value: $1.89M
Mar 04, 2026 Buy	Class A Common Stock A-Award	Kovler Jordan Chief Executive Officer	CEO / President	110 000 Value: $2.18M
Mar 04, 2026 Buy	Class A Common Stock A-Award	Irwin Dale President	CEO / President	110 000 Value: $2.18M
Feb 02, 2026 Sell	Class A Common Stock S-Sale	Irwin Dale President	CEO / President	1 979 Value: $3K
Feb 02, 2026 Sell	Class A Common Stock S-Sale	Irwin Dale President	CEO / President	6 Value: $8
Feb 02, 2026 Sell	Class A Common Stock S-Sale	Mulvihill Christian Chief Financial Officer	C-Suite Officer	1 953 Value: $2K
Feb 02, 2026 Sell	Class A Common Stock S-Sale	Mulvihill Christian Chief Financial Officer	C-Suite Officer	5 Value: $6
Jan 08, 2026 Buy	Class A Common Stock, par value $0.0001 per share J-Other	Atlas Capital Resources Gp Llc	Director	79 320 Value: $163.4K
Nov 09, 2025 Buy	Class A Common Stock A-Award	Krug Christopher J. Director	Director	22 500 Value: $477.0K
Nov 09, 2025 Buy	Class A Common Stock A-Award	Fearn Kenneth Hopkins Jr. Director	Director	22 500 Value: $477.0K
Nov 09, 2025 Buy	Class A Common Stock A-Award	Zeynel Charles M. Director	Director	15 000 Value: $318.0K
Oct 13, 2025 Sell	Class A Common Stock S-Sale	Mulvihill Christian Chief Financial Officer	C-Suite Officer	609 Value: $1K
Oct 13, 2025 Sell	Class A Common Stock S-Sale	Mulvihill Christian Chief Financial Officer	C-Suite Officer	609 Value: $1K
Oct 09, 2025 Buy	Class A Common Stock, par value $0.0001 per share J-Other	Atlas Capital Resources Gp Llc	Director	102 286 Value: $165.7K
Oct 09, 2025 Buy	Class A Common Stock, par value $0.0001 per share J-Other	Atlas Capital Resources Gp Llc	Director	102 286 Value: $165.7K
Sep 16, 2025 Sell	Class A Common Stock S-Sale	Mulvihill Christian Chief Financial Officer	C-Suite Officer	5 Value: $7
Sep 16, 2025 Sell	Class A Common Stock S-Sale	Mulvihill Christian Chief Financial Officer	C-Suite Officer	622 Value: $908
Sep 16, 2025 Sell	Class A Common Stock S-Sale	Mulvihill Christian Chief Financial Officer	C-Suite Officer	622 Value: $908
Sep 16, 2025 Sell	Class A Common Stock S-Sale	Mulvihill Christian Chief Financial Officer	C-Suite Officer	5 Value: $7
Aug 18, 2025 Buy	Class A Common Stock A-Award	Zeynel Charles M. Director	Director	68 493 Value: $567.1K
Aug 18, 2025 Buy	Class A Common Stock A-Award	Zeynel Charles M. Director	Director	68 493 Value: $567.1K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks