30% off. Use code SUMMERSALE30 at checkout for 30% off for 12 months on Plus, Pro and Premium subscriptions. Subscribe now
United States

Greenidge Generation Holdings Inc (GREE)

Track

The most recent insider trading activity occurred on February 2, 2026, with President Irwin Dale and Chief Financial Officer Christian Mulvihill selling shares. These transactions represent the latest in a series of sell transactions by these executives dating back to August 2025. No buy transactions were recorded in this period.
Stock chart
Ticker: GREE Exchange: NSM
Preparing chart...
Download chart Copy chart image Copy link Share to X Share


Subscribe to get access to the transaction volume chart and in-chart transaction details
• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Mulvihill Christian
Chief Financial Officer
3 sales — total 5,006 USD
Sale 2 Feb 2026
Value US$1,321,905.64 | Price 37.62 | Shares 63,618
Sale 2 Feb 2026
Value US$439,879.14 | Price 460.23 | Shares 57,636
Sale 2 Feb 2026
Value US$6.25 | Price 1.25 | Shares 5
Sale 2 Feb 2026
Value US$2,900,993.37 | Price 184.08 | Shares 94,741
Sale 2 Feb 2026
Value US$2,003,423.48 | Price 396.51 | Shares 622
Sale 2 Feb 2026
Value US$7.56 | Price 1.26 | Shares 6
Sale 13 Oct 2025
Value US$1,260.63 | Price 2.07 | Shares 609
Sale 16 Sep 2025
Value US$908.12 | Price 1.46 | Shares 622
Sale 16 Sep 2025
Value US$7.35 | Price 1.47 | Shares 5
Sale 13 Aug 2025
Value US$836.40 | Price 1.36 | Shares 615
Sale 4 Aug 2025
Value US$2,544.00 | Price 1.50 | Shares 1,696
Sale 4 Aug 2025
Value US$2,590.50 | Price 1.50 | Shares 1,727
Sale 14 Jul 2025
Value US$1,148.68 | Price 1.88 | Shares 611
Sale 13 Jun 2025
Value US$888.85 | Price 1.45 | Shares 613
Sale 13 Jun 2025
Value US$20.58 | Price 1.47 | Shares 14
Buy 23 May 2025
Value US$7,800.00 | Price 1.56 | Shares 5,000
Sale 21 May 2025
Value US$6,085.30 | Price 1.30 | Shares 4,681
Sale 21 May 2025
Value US$5,974.80 | Price 1.30 | Shares 4,596
Sale 21 May 2025
Value US$4,072.90 | Price 1.30 | Shares 3,133
Buy 20 May 2025
Value US$6,499.50 | Price 1.30 | Shares 5,000
Buy 20 May 2025
Value US$13,498.00 | Price 1.35 | Shares 10,000
Buy 20 May 2025
Value US$164,637.50 | Price 1.32 | Shares 125,000
Buy 19 May 2025
Value US$11,100.00 | Price 1.11 | Shares 10,000
Sale 13 May 2025
Value US$692.16 | Price 1.12 | Shares 618
Buy 24 Apr 2025
Value US$45,760.00 | Price 0.83 | Shares 55,000
Buy 23 Apr 2025
Value US$58,156.00 | Price 0.83 | Shares 70,000
Sale 14 Apr 2025
Value US$401.70 | Price 0.65 | Shares 618
Sale 28 Mar 2025
Value US$18,060.57 | Price 0.81 | Shares 22,297
Sale 28 Mar 2025
Value US$81.00 | Price 0.81 | Shares 100
Sale 28 Mar 2025
Value US$10.40 | Price 0.80 | Shares 13
Sale 28 Mar 2025
Value US$915.20 | Price 0.80 | Shares 1,144
Sale 27 Mar 2025
Value US$7,200.00 | Price 0.80 | Shares 9,000
Sale 27 Mar 2025
Value US$1,429.70 | Price 0.85 | Shares 1,682
Sale 27 Mar 2025
Value US$7,280.00 | Price 0.80 | Shares 9,100
Sale 27 Mar 2025
Value US$7,290.40 | Price 0.80 | Shares 9,113
Sale 27 Mar 2025
Value US$1,126.40 | Price 0.80 | Shares 1,408
Sale 27 Mar 2025
Value US$18,356.00 | Price 0.80 | Shares 22,945
Sale 14 Mar 2025
Value US$568.26 | Price 0.77 | Shares 738
Sale 13 Feb 2025
Value US$304.56 | Price 1.08 | Shares 282
Sale 13 Feb 2025
Value US$3.21 | Price 1.07 | Shares 3
Sale 13 Feb 2025
Value US$459.00 | Price 1.08 | Shares 425
Sale 3 Feb 2025
Value US$2,677.00 | Price 1.29 | Shares 2,076
Sale 3 Feb 2025
Value US$2,512.60 | Price 1.29 | Shares 1,947
Sale 14 Jan 2025
Value US$1,178.49 | Price 1.63 | Shares 723
Buy 23 Dec 2024
Value US$8,800.00 | Price 1.76 | Shares 5,000
Sale 17 Dec 2024
Value US$1,309.00 | Price 2.20 | Shares 595
Buy 6 Sep 2024
Value US$1,719.30 | Price 1.72 | Shares 1,000
Buy 6 Sep 2024
Value US$6,879.20 | Price 1.72 | Shares 4,000
Sale 28 May 2024
Value US$24,638.79 | Price 2.81 | Shares 8,777
Proposed sale 28 May 2024
Value US$24,638.36 | Price 2.81 | Shares 8,777
Sale 20 May 2024
Value US$63,797.50 | Price 2.55 | Shares 25,000
Sale 28 Feb 2024
Value US$23,600.28 | Price 4.18 | Shares 5,646
Buy 20 Feb 2024
Value US$7,740.00 | Price 3.87 | Shares 2,000
Buy 16 Feb 2024
Value US$2,815.20 | Price 4.08 | Shares 690
Buy 16 Feb 2024
Value US$3,296.70 | Price 4.07 | Shares 810
Buy 5 Feb 2024
Value US$1,635.00 | Price 3.27 | Shares 500
Buy 5 Feb 2024
Value US$8,389.50 | Price 3.29 | Shares 2,550
Buy 16 Nov 2023
Value US$26,050.00 | Price 5.21 | Shares 5,000
Sale 9 Mar 2023
Value US$2,731.68 | Price 0.42 | Shares 6,504
Sale 9 Mar 2023
Value US$1,457.40 | Price 0.42 | Shares 3,470
Buy 31 Jan 2023
Value US$999,999.84 | Price 0.84 | Shares 1,190,476
Sale 15 Nov 2022
Value US$1,157.25 | Price 0.75 | Shares 1,543
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-02-04 2026-02-02 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
63,618 +18.1%
37.62
US$1,321,906 		63,618 +18.1% 37.62 US$1,321,906
2026-02-04 2026-02-02 S Sale
3.3
Irwin Dale

President

Officer
94,741 -5.5%
184.08
US$2,900,993 		94,741 -5.5% 184.08 US$2,900,993
2026-02-04 2026-02-02 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
57,636 -27.3%
460.23
US$439,879 		57,636 -27.3% 460.23 US$439,879
2026-02-04 2026-02-02 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
5 -0.0%
1.25
US$6 		5 -0.0% 1.25 US$6
2026-02-04 2026-02-02 S Sale
3.3
Irwin Dale

President

Officer
1,979 -1.9%
1.28
US$2,533 		1,979 -1.9% 1.28 US$2,533
2026-02-04 2026-02-02 S Sale
3.3
Irwin Dale

President

Officer
6 -0.0%
1.26
US$8 		6 -0.0% 1.26 US$8
2025-10-15 2025-10-13 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
609 -0.6%
2.07
US$1,261 		609 -0.6% 2.07 US$1,261
2025-09-17 2025-09-16 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
622 -0.6%
1.46
US$908 		622 -0.6% 1.46 US$908
2025-09-17 2025-09-16 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
5 -0.0%
1.47
US$7 		5 -0.0% 1.47 US$7
2025-08-13 2025-08-13 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
615 -0.6%
1.36
US$836 		615 -0.6% 1.36 US$836
2025-08-06 2025-08-04 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
1,696 -1.7%
1.50
US$2,544 		1,696 -1.7% 1.50 US$2,544
2025-08-06 2025-08-04 S Sale
3.3
Irwin Dale

President

Officer
1,727 -1.6%
1.50
US$2,590 		1,727 -1.6% 1.50 US$2,590
2025-07-16 2025-07-14 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
611 -0.6%
1.88
US$1,149 		611 -0.6% 1.88 US$1,149
2025-06-13 2025-06-13 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
613 -0.6%
1.45
US$889 		613 -0.6% 1.45 US$889
2025-06-13 2025-06-13 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
14 -0.0%
1.47
US$21 		14 -0.0% 1.47 US$21
2025-05-23 2025-05-23 B Purchase
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
5,000 +3.4%
1.56
US$7,800 		5,000 +3.4% 1.56 US$7,800
2025-05-23 2025-05-21 S Sale
3.3
Irwin Dale

President

Officer
4,681 -4.2%
1.30
US$6,085 		4,681 -4.2% 1.30 US$6,085
2025-05-23 2025-05-21 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
4,596 -4.3%
1.30
US$5,975 		4,596 -4.3% 1.30 US$5,975
2025-05-23 2025-05-21 S Sale
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
3,133 -2.1%
1.30
US$4,073 		3,133 -2.1% 1.30 US$4,073
2025-05-20 2025-05-20 B Purchase
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
5,000 +3.4%
1.30
US$6,500 		5,000 +3.4% 1.30 US$6,500
2025-05-20 2025-05-20 B Purchase
2.5
Mulvihill Christian

Chief Financial Officer

Officer
10,000 +10.3%
1.35
US$13,498 		10,000 +10.3% 1.35 US$13,498
2025-05-20 2025-05-20 B Purchase
3.4
Krug Christopher J.
Non-Executive Director
125,000 +100.0%
1.32
US$164,638 		125,000 +100.0% 1.32 US$164,638
2025-05-20 2025-05-19 B Purchase
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
10,000 +7.4%
1.11
US$11,100 		10,000 +7.4% 1.11 US$11,100
2025-05-15 2025-05-13 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
618 -0.7%
1.12
US$692 		618 -0.7% 1.12 US$692
2025-04-25 2025-04-24 B Purchase
3.4
Krug Christopher J.
Non-Executive Director
55,000 +24.8%
0.83
US$45,760 		55,000 +24.8% 0.83 US$45,760
2025-04-25 2025-04-23 B Purchase
3.4
Krug Christopher J.
Non-Executive Director
70,000 +46.2%
0.83
US$58,156 		70,000 +46.2% 0.83 US$58,156
2025-04-15 2025-04-14 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
618 -0.7%
0.65
US$402 		618 -0.7% 0.65 US$402
2025-03-28 2025-03-28 S Sale
3.3
Irwin Dale

President

Officer
22,297 -18.4%
0.81
US$18,061 		22,297 -18.4% 0.81 US$18,061
2025-03-28 2025-03-28 S Sale
3.3
Irwin Dale

President

Officer
100 -0.1%
0.81
US$81 		100 -0.1% 0.81 US$81
2025-03-28 2025-03-28 S Sale
3.3
Irwin Dale

President

Officer
13 -0.0%
0.80
US$10 		13 -0.0% 0.80 US$10
2025-03-28 2025-03-28 S Sale
3.3
Irwin Dale

President

Officer
1,144 -0.9%
0.80
US$915 		1,144 -0.9% 0.80 US$915
2025-03-28 2025-03-27 S Sale
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
9,000 -6.8%
0.80
US$7,200 		9,000 -6.8% 0.80 US$7,200
2025-03-28 2025-03-27 S Sale
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
1,682 -1.3%
0.85
US$1,430 		1,682 -1.3% 0.85 US$1,430
2025-03-28 2025-03-27 S Sale
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
9,100 -6.4%
0.80
US$7,280 		9,100 -6.4% 0.80 US$7,280
2025-03-28 2025-03-27 S Sale
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
9,113 -6.0%
0.80
US$7,290 		9,113 -6.0% 0.80 US$7,290
2025-03-28 2025-03-27 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
1,408 -1.6%
0.80
US$1,126 		1,408 -1.6% 0.80 US$1,126
2025-03-28 2025-03-27 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
22,945 -20.9%
0.80
US$18,356 		22,945 -20.9% 0.80 US$18,356
2025-03-18 2025-03-14 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
738 -1.3%
0.77
US$568 		738 -1.3% 0.77 US$568
2025-02-13 2025-02-13 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
282 -0.5%
1.08
US$305 		282 -0.5% 1.08 US$305
2025-02-13 2025-02-13 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
3 -0.0%
1.07
US$3 		3 -0.0% 1.07 US$3
2025-02-13 2025-02-13 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
425 -0.8%
1.08
US$459 		425 -0.8% 1.08 US$459
2025-02-04 2025-02-03 S Sale
3.3
Irwin Dale

President

Officer
2,076 -3.0%
1.29
US$2,677 		2,076 -3.0% 1.29 US$2,677
2025-02-04 2025-02-03 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
1,947 -3.4%
1.29
US$2,513 		1,947 -3.4% 1.29 US$2,513
2025-01-16 2025-01-14 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
723 -1.2%
1.63
US$1,178 		723 -1.2% 1.63 US$1,178
2024-12-23 2024-12-23 B Purchase
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
5,000 +9.0%
1.76
US$8,800 		5,000 +9.0% 1.76 US$8,800
2024-12-17 2024-12-17 S Sale
2.5
Mulvihill Christian

Chief Financial Officer

Officer
595 -1.0%
2.20
US$1,309 		595 -1.0% 2.20 US$1,309
2024-09-06 2024-09-06 B Purchase
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
1,000 +1.5%
1.72
US$1,719 		1,000 +1.5% 1.72 US$1,719
2024-09-06 2024-09-06 B Purchase
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
4,000 +6.3%
1.72
US$6,879 		4,000 +6.3% 1.72 US$6,879
2024-05-29 2024-05-28 S Sale
3.3
Irwin Dale

President

Officer
8,777 -11.0%
2.81
US$24,639 		8,777 -11.0% 2.81 US$24,639
2024-05-28 2024-05-28 PrS Proposed sale
3.3
Irwin Dale

Officer

Officer
8,777
2.81
US$24,638 		8,777 2.81 US$24,638
2024-05-23 2024-05-20 S Sale
3.3
Irwin Dale

President

Officer
25,000 -23.9%
2.55
US$63,798 		25,000 -23.9% 2.55 US$63,798
2024-03-01 2024-02-28 S Sale
3.3
Irwin Dale

President

Officer
5,646 -5.1%
4.18
US$23,600 		5,646 -5.1% 4.18 US$23,600
2024-02-21 2024-02-20 B Purchase
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
2,000 +20.0%
3.87
US$7,740 		2,000 +20.0% 3.87 US$7,740
2024-02-21 2024-02-16 B Purchase
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
690 +7.4%
4.08
US$2,815 		690 +7.4% 4.08 US$2,815
2024-02-21 2024-02-16 B Purchase
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
810 +9.5%
4.07
US$3,297 		810 +9.5% 4.07 US$3,297
2024-02-07 2024-02-05 B Purchase
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
500 +6.2%
3.27
US$1,635 		500 +6.2% 3.27 US$1,635
2024-02-07 2024-02-05 B Purchase
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
2,550 +46.8%
3.29
US$8,390 		2,550 +46.8% 3.29 US$8,390
2023-11-20 2023-11-16 B Purchase
2.1
Kovler Jordan

Chief Executive Officer

Executive Director
5,000 +1111.1%
5.21
US$26,050 		5,000 +1111.1% 5.21 US$26,050
2023-03-13 2023-03-09 S Sale
1.6
NEUSCHELER MICHAEL P
Non-Executive Director
6,504 -14.9%
0.42
US$2,732 		6,504 -14.9% 0.42 US$2,732
2023-03-13 2023-03-09 S Sale
1.6
Rothaupt Daniel
Non-Executive Director
3,470 -14.5%
0.42
US$1,457 		3,470 -14.5% 0.42 US$1,457
2023-02-02 2023-01-31 B Purchase
0.5
Atlas Capital Resources GP LLC
Non-Executive Director Large shareholder
1,190,476 +inf%
0.84
US$1,000,000 		1,190,476 +inf% 0.84 US$1,000,000
2023-03-06 2022-11-15 S Sale
3.3
Loughran Robert

Chief Financial Officer

Officer
1,543 -10.3%
0.75
US$1,157 		1,543 -10.3% 0.75 US$1,157
Explore more

More insider trading research around Greenidge Generation Holdings Inc

More insider trades in United States
Insider trading in North America