Soluna CEO sells 1,000 preferred shares at $11.91

Soluna Holdings, Inc (SLNH) reported that Chief Executive Officer and director John Belizaire sold 1,000 shares of the company’s 9.0% Series A Cumulative Perpetual Preferred Stock on 2026-09-01 at $11.91 per share.

Rhea-AI Filing Summary

Soluna Holdings, Inc (SLNH) reported that Chief Executive Officer and director John Belizaire sold 1,000 shares of the company’s 9.0% Series A Cumulative Perpetual Preferred Stock on 2026-09-01 at $11.91 per share. After this Rule 10b5-1 plan trade, he directly holds 98,042 preferred shares.

Insider Trade Summary 10b5-1

Net Seller: 1,000 shares

Net Sell 1 txn

Insider Belizaire John

Role Chief Executive Officer

Sold 1,000 shs ($12K)

Type	Security	Shares	Price	Value
Sale	9.0% Series A Cumulative Perpetual Preferred Stock F1	1,000	$11.91	$12K

Holdings After Transaction: 9.0% Series A Cumulative Perpetual Preferred Stock — 98,042 shares (Direct)

Footnotes (1)

1. F1. Transaction reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 16, 2025.

Key Figures

Shares sold: 1,000 shares Sale price per share: $11.91 per share Shares held after transaction: 98,042 shares +2 more

5 metrics

Shares sold 1,000 shares Sale of 9.0% Series A Cumulative Perpetual Preferred Stock on 2026-09-01

Sale price per share $11.91 per share Price for the 1,000 preferred shares sold on 2026-09-01

Shares held after transaction 98,042 shares Direct holdings of 9.0% Series A Cumulative Perpetual Preferred Stock after sale

Net shares sold 1,000 shares Net change in non-derivative holdings in this Form 4

Rule 10b5-1 plan adoption date December 16, 2025 Date John Belizaire adopted the trading plan governing this sale

Key Terms

Rule 10b5-1 trading plan, Cumulative Perpetual Preferred Stock, Series A

3 terms

Rule 10b5-1 trading plan regulatory

"Transaction reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

Cumulative Perpetual Preferred Stock financial

"9.0% Series A Cumulative Perpetual Preferred Stock"

A cumulative perpetual preferred stock is a share that acts like a long-lasting hybrid between a bond and a dividend-paying stock: it promises regular fixed payments that, if missed, accumulate and must be paid later before common shareholders get dividends, and it has no set maturity date. Investors care because it can provide steady, higher-priority income similar to interest, but with limited capital upside, sensitivity to interest rates, and the risk that payments can be delayed even though they continue to accrue.

Series A financial

"9.0% Series A Cumulative Perpetual Preferred Stock"

Series A is the first major round of outside equity financing for a privately held startup, where professional investors buy ownership stakes in exchange for capital to help the company move from early proof-of-concept toward scalable operations. It matters to investors because it sets an early price for the company and signals market confidence; successful Series A investments can deliver large returns if the business grows, but they also carry high risk similar to backing a promising prototype that still needs development.

FAQ

What insider transaction did Soluna Holdings, Inc (SLNH) disclose in this Form 4?

Soluna Holdings, Inc disclosed that CEO and director John Belizaire sold 1,000 shares of its 9.0% Series A Cumulative Perpetual Preferred Stock on 2026-09-01 at a price of $11.91 per share, in an open market or private transaction.

How many Soluna (SLNH) preferred shares does John Belizaire hold after this transaction?

After the reported sale, John Belizaire directly holds 98,042 shares of Soluna’s 9.0% Series A Cumulative Perpetual Preferred Stock, according to the Form 4 filing.

Was the Soluna (SLNH) insider sale made under a Rule 10b5-1 trading plan?

Yes. The filing states the transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by John Belizaire on December 16, 2025, and the Rule 10b5-1 checkbox is affirmed for this Form 4.

What type of security did Soluna (SLNH) CEO John Belizaire sell?

John Belizaire sold 9.0% Series A Cumulative Perpetual Preferred Stock of Soluna Holdings, Inc, not common stock. The reported transaction involved 1,000 preferred shares at $11.91 per share.

What is the transaction code used in this Soluna (SLNH) Form 4 filing?

The transaction is reported with code S, described as a sale in open market or private transaction, for 1,000 shares of 9.0% Series A Cumulative Perpetual Preferred Stock at $11.91 per share.

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Available on EDGAR 09/01/2026 - 04:31 PM Accepted by SEC EDGAR 09/01/2026 - 04:30 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Belizaire John

(Last) (First) (Middle)

C/O SOLUNA HOLDINGS, INC.

325 WASHINGTON AVENUE EXTENSION

(Street)

ALBANY NEW YORK 12205

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Soluna Holdings, Inc [ SLNHP ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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
9.0% Series A Cumulative Perpetual Preferred Stock	09/01/2026		S(1)		1,000(1)	D	$11.91	98,042	D

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 Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. Transaction reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 16, 2025.

	/s/ Christopher Gandolfo, Attorney in Fact	09/01/2026
	** 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 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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* Form 4: SEC 1474 (03-26)