8-K
Greenidge Generation Holdings Inc. (GREE)
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
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FORM 8-K
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CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
December 18, 2025
Date of Report (date of earliest event reported)
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Greenidge Generation Holdings Inc.
(Exact name of registrant as specified in its charter)
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| Delaware<br><br>(State or other jurisdiction of<br><br>incorporation or organization) | 001-40808<br><br>(Commission File Number) | 86-1746728<br><br>(I.R.S. Employer Identification Number) |
|---|---|---|
| 1159 Pittsford-Victor Road, Suite 240<br><br>Pittsford, New York 14534 | ||
| (Address of principal executive offices and zip code) | ||
| (315) 536-2359 | ||
| (Registrant's telephone number, including area code) |
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Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
| ☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) | ||||
|---|---|---|---|---|---|
| ☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) | ||||
| ☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) | ||||
| ☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) | Securities registered pursuant to Section 12(b) of the Act: | |||
| --- | --- | --- | |||
| Title of each class | Trading Symbol | Name of each exchange on which registered | |||
| Class A common stock, par value $.0001 | GREE | The Nasdaq Global Select Market | |||
| 8.50% Senior Notes due 2026 | GREEL | The Nasdaq Global Select Market |
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 12b-2 of the Exchange Act.
Emerging growth company ☒
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
| Item 8.01 – Other Events. |
|---|
As previously disclosed in its Current Report on Form 8-K filed on November 26, 2025, Greenidge Generation Holdings Inc. (the “Company”) reported that, on November 23, 2025, the Dresden, NY power generation facility (the “Facility”) owned by Greenidge Generation LLC, a wholly owned subsidiary of the Company, experienced an electrical switchgear failure and resulting fire (such event, the “Incident”), which was contained and resulted in the immediate and complete de-energization of the Facility pursuant to automated safety protocols.
On December 9, 2025, the Facility resumed normal operations, approximately two weeks after the Incident. The Incident did not result in any damage to the Company's owned or hosted Bitcoin miners located at the Facility and caused limited damage to certain electrical switchgear due to the prompt response of the Company's employees, local firefighters and utility partners. The Facility returned to service ahead of schedule and has resumed consistently delivering power to the local grid.
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
| Greenidge Generation Holdings Inc. | |
|---|---|
| By: | /s/ Jordan Kovler |
| Name: | Jordan Kovler |
| Title: | Chief Executive Officer |
Date: December 18, 2025