Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Atlas Capital Resources GP LLC 2. Issuer Name and Ticker or Trading Symbol Greenidge Generation Holdings Inc. [GREE] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 100 NORTHFIELD STREET 3. Date of Earliest Transaction (Month/Day/Year) 10/09/2025 (Street) GREENWICH, CT 06830 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A Common Stock, par value $0.0001 per share 10/09/2025 J(1) 102,286 A $1.62(1) 3,876,997(2) I See footnotes(3)(4)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Atlas Capital Resources GP LLC 100 NORTHFIELD STREET GREENWICH, CT 06830	X	X
Atlas Capital GP LP 100 NORTHFIELD STREET GREENWICH, CT 06830	X	X
Atlas Capital Resources (A9) LP 100 NORTHFIELD STREET GREENWICH, CT 06830	X	X
BURSKY ANDREW M 100 NORTHFIELD STREET GREENWICH, CT 06830	X	X
Fazio Timothy J 100 NORTHFIELD STREET GREENWICH, CT 06830	X	X

Signatures

Atlas Capital Resources GP LLC, /s/ Timothy J. Fazio, Managing Partner		10/09/2025
**Signature of Reporting Person		Date
Atlas Capital GP LP, By: Atlas Capital Resources GP LLC, /s/ Timothy J. Fazio, Managing Partner		10/09/2025
**Signature of Reporting Person		Date
Atlas Capital Resources (A9) LP, By: Atlas Capital Resources GP LP, By: Atlas Capital Resources GP LLC, /s/ Timothy J. Fazio, Managing Partner		10/09/2025
**Signature of Reporting Person		Date
Andrew M. Bursky, /s/ Andrew M. Bursky		10/09/2025
**Signature of Reporting Person		Date
Timothy J. Fazio, /s/ Timothy J. Fazio		10/09/2025
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	In connection with the Equity Interest Payment Agreement (the "Agreement"), dated as of January 24, 2025, by and among Greenidge Generation Holdings Inc. (the "Issuer") and Atlas Capital Resources (A9) LP ("ACR9"), Atlas Capital Resources (A9-Parallel) LP ("ACR Parallel"), and Atlas Capital Resources (P) LP ("ACR P" and, together with ACR9 and ACR Parallel, collectively, "Atlas"), the Issuer made a $166,164 payment to Atlas in the form of shares of Class A Common Stock based on the price formula set forth in the Agreement. Of the 102,286 shares of Class A Common Stock issued to Atlas thereunder, 73,289 shares were issued to ACR9, 26,316 shares were issued to ACR Parallel and 2,681 shares were issued to ACR P.
(2)	Represents 1,196,967 shares of Class A Common Stock and 2,680,030 shares of Class B Common Stock, which are convertible at any time at the option of the holder into an equal number of shares of Class A Common Stock.
(3)	Atlas Capital GP LP ("ACR GPLP") is the general partner of ACR9, ACR Parallel, ACR P and GGH Bridge Investment LP ("GGH"). Atlas Capital Resources GP LLC ("ACR GP") is the general partner of ACR GPLP. ACR GP, ACR GPLP, ACR9, ACR Parallel, ACR P, and GGH are collectively referred to as the "Atlas Entities." Andrew M. Bursky and Timothy J. Fazio are each a managing partner of ACR GP and may be deemed to control the Atlas Entities.
(4)	Each of Messrs. Bursky and Fazio and each of the Atlas Entities disclaims beneficial ownership interest of the Class A Common Stock except, in each case, to the extent he or it has any pecuniary interest therein.

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