Soluna director sells 12K shares at $1.12 avg

A Soluna Holdings director sold 12,037 SLNH shares at about $1.12 each and continues to hold roughly 2.28 million shares.

Rhea-AI Filing Summary

Soluna Holdings, Inc (SLNH) director William P. Phelan reported selling 12,037 shares of common stock on September 3, 2026 in an open-market or private transaction at an average sales price of about $1.12 per share, with individual prices ranging from $1.11 to $1.125. After this sale, he directly holds 2,279,985 shares of Soluna common stock. No Rule 10b5-1 trading plan is reported for this transaction.

Insider Trade Summary

Net Seller: 12,037 shares

Net Sell 1 txn

Insider Phelan William P

Role Director

Sold 12,037 shs ($13K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	12,037	$1.12	$13K

Holdings After Transaction: Common Stock — 2,279,985 shares (Direct)

Footnotes (1)

1. F1. Represents the average sales price of shares sold ranging from $1.11- $1.125 per share Common Stock. Mr. Phelan undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of shares sold in each separate lot.

Key Figures

Shares sold: 12,037 shares Average sales price: $1.12 per share Price range: $1.11–$1.125 per share +1 more

4 metrics

Shares sold 12,037 shares Common stock sale on September 3, 2026

Average sales price $1.12 per share Weighted average price across sales from $1.11 to $1.125

Price range $1.11–$1.125 per share Range of prices for the reported sale transactions

Shares held after transaction 2,279,985 shares Direct holdings of Soluna common stock after the sale

Key Terms

average sales price, open market or private transaction, Rule 10b5-1

3 terms

average sales price financial

"Represents the average sales price of shares sold ranging from $1.11- $1.125"

open market or private transaction financial

"Sale in open market or private transaction"

Rule 10b5-1 regulatory

"provide, upon request by the staff of the U.S. Securities and Exchange Commission"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

FAQ

Who from SLNH reported a stock transaction in this Form 4?

Director William P. Phelan reported a transaction involving Soluna Holdings, Inc. common stock. He is identified in the filing as a director and not as an officer or ten percent owner.

How many Soluna Holdings (SLNH) shares did William P. Phelan sell?

He sold 12,037 shares of Soluna Holdings, Inc. common stock on September 3, 2026 in a reported open-market or private transaction.

At what price were the SLNH shares sold in this Form 4?

The filing reports an average sales price of $1.12 per share, with individual sales prices ranging from $1.11 to $1.125 per share for the Soluna Holdings, Inc. common stock sold.

How many SLNH shares does William P. Phelan hold after the sale?

After the reported sale, William P. Phelan directly holds 2,279,985 shares of Soluna Holdings, Inc. common stock, according to the post-transaction holdings figure in the Form 4.

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

No. The Rule 10b5-1 checkbox in the Form 4 is not checked, and the footnotes do not state that the transaction was made pursuant to a Rule 10b5-1 trading plan.

What does the pricing footnote in the SLNH Form 4 explain?

The footnote explains that $1.12 per share is an average sales price for transactions executed in a price range of $1.11 to $1.125 per share, and that William P. Phelan will provide lot-by-lot details to SEC staff upon request.

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Available on EDGAR 09/04/2026 - 04:43 PM Accepted by SEC EDGAR 09/04/2026 - 04:42 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).

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^*

Phelan William P

(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 [ SLNH ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/03/2026

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
Common Stock	09/03/2026		S		12,037	D	$1.12(1)	2,279,985	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. Represents the average sales price of shares sold ranging from $1.11- $1.125 per share Common Stock. Mr. Phelan undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of shares sold in each separate lot.

	/s/ Christopher Gandolfo, Attorney in Fact	09/04/2026
	** 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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)