Soluna officer uses 16K shares for tax/exercise

Soluna’s Chief People Officer had 16,189 shares withheld for option exercise price or tax obligations, leaving 1,687,486 shares held directly.

Rhea-AI Filing Summary

Soluna Holdings, Inc (SLNH) reported that Chief People Officer Mary Jennifer OReilly had 16,189 shares of common stock disposed of on September 1, 2026 as a payment of exercise price or tax liability by delivering or withholding securities. The shares were valued at $1.05 per share for this purpose, and she now holds 1,687,486 common shares directly following the transaction. No Rule 10b5-1 trading plan is reported for this filing.

Insider Trade Summary

Exercise Price or Tax Liability: 16,189 shares

Exercise Price or Tax Liability 1 txn

Insider OReilly Mary Jennifer

Role Chief People Officer

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	16,189	$1.05	$17K

Holdings After Transaction: Common Stock — 1,687,486 shares (Direct)

Key Figures

Shares delivered or withheld: 16,189 shares Per-share valuation: $1.05 per share Shares held after transaction: 1,687,486 shares +1 more

4 metrics

Shares delivered or withheld 16,189 shares Payment of exercise price or tax liability on September 1, 2026

Per-share valuation $1.05 per share Value used for the 16,189 shares delivered or withheld

Shares held after transaction 1,687,486 shares Directly held common stock by Mary Jennifer OReilly after the transaction

Exercise price or tax liability shares 16,189 shares Total shares reported under code F in this filing

Key Terms

Payment of exercise price or tax liability, Rule 10b5-1, Common Stock

3 terms

Payment of exercise price or tax liability financial

"reported as payment of exercise price or tax liability by delivering or withholding securities"

Rule 10b5-1 regulatory

"No Rule 10b5-1 trading plan is reported for this filing"

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.

Common Stock financial

"16,189 shares of common stock disposed of on September 1, 2026"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did SLNH disclose for Mary Jennifer OReilly?

SLNH disclosed that Chief People Officer Mary Jennifer OReilly had 16,189 shares of common stock disposed of on September 1, 2026 to pay an exercise price or tax liability by delivering or withholding securities, leaving her with 1,687,486 shares held directly.

Was the SLNH insider transaction a market sale or a tax/exercise-related withholding?

The transaction was reported as payment of exercise price or tax liability by delivering or withholding securities, not as an open-market sale. Code F was used, indicating shares were withheld or delivered to satisfy option exercise or tax obligations.

How many Soluna Holdings (SLNH) shares does Mary Jennifer OReilly own after this transaction?

After the September 1, 2026 transaction, Chief People Officer Mary Jennifer OReilly is reported to hold 1,687,486 shares of Soluna Holdings, Inc common stock directly.

At what price per share were the SLNH shares valued in this insider transaction?

The 16,189 Soluna Holdings, Inc common shares involved in the transaction were valued at $1.05 per share for the purpose of paying the exercise price or tax liability by delivering or withholding securities.

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

No. The filing indicates that the Rule 10b5-1 checkbox is not marked, so no Rule 10b5-1 trading plan is reported in connection with this September 1, 2026 transaction.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 09/17/2026 - 04:31 PM Accepted by SEC EDGAR 09/17/2026 - 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).

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^*

OReilly Mary Jennifer

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief People 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
Common Stock	09/01/2026		F		16,189	D	$1.05	1,687,486	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:

	/s/ Christopher Gandolfo, Attorney in Fact	09/17/2026
	** 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)