Standard Nuclear director receives 13,255-share RSU award

Cohen Seth Michael reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Cohen Seth Michael reported acquisition or exercise transactions in this Form 4 filing.

Standard Nuclear, Inc. reported that director Cohen Seth Michael received an equity compensation award of 13,255 shares of Class A common stock in the form of restricted stock units. The RSUs carry a $0.0000 grant price and will vest 100% on the earlier of the day before the 2027 annual stockholders meeting or the one-year anniversary of the grant date, subject to his continued Board service. Following this grant, Cohen holds 13,255 shares directly.

Insider Trade Summary

Grant/Award: 13,255 shares

Grant/Award 1 txn

Insider Cohen Seth Michael

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Class A common stock F1	13,255	$0.00	$0.00

Holdings After Transaction: Class A common stock — 13,255 shares (Direct)

Footnotes (1)

1. F1. Represents shares of Class A Common Stock underlying an award of restricted stock units ("RSUs"). 100% of the RSUs will vest on the earlier of (i) the day before the Issuer's 2027 Annual Meeting of Stockholders or (ii) the one-year anniversary of the grant date, subject to the Reporting Person's continued service as a member of the Board of Directors of the Issuer through such vesting date.

Key Figures

RSUs granted: 13,255 shares Grant price: $0.0000 per share Shares held after grant: 13,255 shares +2 more

5 metrics

RSUs granted 13,255 shares Class A common stock underlying restricted stock units granted to director

Grant price $0.0000 per share Stated per-share price for the RSU award

Shares held after grant 13,255 shares Director’s direct holdings following the RSU award

Vesting condition 2027 meeting / one-year from grant 100% vesting on earlier of day before 2027 Annual Meeting or one-year anniversary, with continued service

Transaction code A Grant, award, or other acquisition of non-derivative securities

Key Terms

restricted stock units, Class A common stock, vesting, Annual Meeting of Stockholders

4 terms

restricted stock units financial

"Represents shares of Class A Common Stock underlying an award of restricted stock units ("RSUs")."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Class A common stock financial

"Represents shares of Class A Common Stock underlying an award of restricted stock units ("RSUs")."

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

vesting financial

"100% of the RSUs will vest on the earlier of (i) the day before the Issuer's 2027"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

Annual Meeting of Stockholders financial

"the day before the Issuer's 2027 Annual Meeting of Stockholders or (ii) the one-year"

FAQ

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

What insider transaction did Standard Nuclear (STDN) disclose in this Form 4?

Standard Nuclear disclosed that director Cohen Seth Michael received a grant of 13,255 RSUs representing Class A common stock, at a grant price of $0.0000 per share, as equity compensation for his Board service.

How many Standard Nuclear (STDN) shares did Cohen Seth Michael acquire?

Cohen Seth Michael acquired 13,255 shares of Class A common stock underlying restricted stock units. These RSUs were granted as a compensation award and increase his directly held position to 13,255 shares after the transaction.

When do the RSUs granted to Cohen Seth Michael at Standard Nuclear (STDN) vest?

The RSUs vest 100% on the earlier of (i) the day before Standard Nuclear’s 2027 annual stockholders meeting or (ii) the one-year anniversary of the grant date, subject to his continued service on the Board.

What is the grant price of the RSUs issued by Standard Nuclear (STDN) to Cohen Seth Michael?

The RSUs granted to Cohen Seth Michael have a stated grant price of $0.0000 per share. This reflects a compensation award of equity rather than a market purchase for cash consideration in the open market.

Is the Standard Nuclear (STDN) RSU grant to Cohen Seth Michael a purchase or an award?

The transaction is reported with code A, described as a grant, award, or other acquisition. The 13,255 shares are restricted stock units awarded as equity compensation, not shares purchased on the market.

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

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Accepted by SEC EDGAR 08/14/2026 - 08:04 AM EDT 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^*

Cohen Seth Michael

(Last) (First) (Middle)

C/O STANDARD NUCLEAR, INC.

200 EUROPIA AVE

(Street)

OAK RIDGE TENNESSEE 37830

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Standard Nuclear, Inc. [ STDN ]

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)
08/12/2026

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
Class A common stock	08/12/2026		A		13,255(1)	A	$0	13,255	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 shares of Class A Common Stock underlying an award of restricted stock units ("RSUs"). 100% of the RSUs will vest on the earlier of (i) the day before the Issuer's 2027 Annual Meeting of Stockholders or (ii) the one-year anniversary of the grant date, subject to the Reporting Person's continued service as a member of the Board of Directors of the Issuer through such vesting date.

Remarks:

	/s/ Shahram Ghasemian, by power of attorney	08/14/2026
	** 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)