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SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF 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* Monarch Alternative Capital LP (Last) (First) (Middle) 535 MADISON AVENUE (Street) NEW YORK NY 10022 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 03/31/2026	3. Issuer Name and Ticker or Trading Symbol Capstone Green Energy Holdings, Inc. [ CGEH ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of 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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Voting Common Stock	3,333,334	I	See footnotes(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Series A Convertible Preferred Stock	(2)	(2)	Voting Common Stock	16,000,000	(2)	I	See footnotes(1)

1. Name and Address of Reporting Person* Monarch Alternative Capital LP (Last) (First) (Middle) 535 MADISON AVENUE (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* MDRA GP LP (Last) (First) (Middle) C/O MONARCH ALTERNATIVE CAPITAL LP 535 MADISON AVENUE (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Monarch GP LLC (Last) (First) (Middle) C/O MONARCH ALTERNATIVE CAPITAL LP 535 MADISON AVENUE (Street) NEW YORK NY 10022 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. This Form 3 is being filed on behalf of Monarch Alternative Capital LP, a Delaware limited partnership ("MAC"), MDRA GP LP, a Delaware limited partnership ("MDRA GP"), and Monarch GP LLC, a Delaware limited liability company ("Monarch GP" and, together with MAC and MDRA GP, the "Reporting Persons"). MAC serves as the investment advisor to a variety of funds (such funds collectively, the "Monarch Funds"), with respect to the shares of the Issuer beneficially owned by it by virtue of the authority granted to it by the Monarch Funds to vote and dispose of the securities held by such Monarch Funds. MDRA GP is the general partner of MAC and Monarch GP is the general partner of MDRA GP. Each of MAC, MDRA GP and Monarch GP may be deemed to indirectly beneficially own shares held directly by the Monarch Funds and disclaims economic ownership of all such shares except to the extent of any indirect pecuniary interest therein.

2. Consists of 80,000 shares of Series A Convertible Preferred Stock of the Issuer. The Series A Convertible Preferred Stock is convertible into shares of the Issuer's common stock at the option of the holder at an initial conversion price of $5.00 per share, subject to adjustment pursuant to the terms of the Certificate of Designation, and has no expiration date.

	Monarch Alternative Capital LP; By: /s/ Christopher Santana, Chief Executive Officer	04/03/2026
	MDRA GP LP; By: Monarch GP LLC, as general partner; By: /s/ Christopher Santana, Partnership Committee Member	04/03/2026
	Monarch GP LLC; By: /s/ Christopher Santana, Partnership Committee Member	04/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (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).
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