[Form 4] Perma-Fix Environmental Services, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Perma-Fix Environmental Services, Inc. (PESI) director Larry Shelton executed and reported transactions on 09/02/2025 related to 2,400 shares. Shelton exercised 2,400 non-qualified stock options with an exercise price of $4.19 per share, acquiring 2,400 common shares at $0 reported price for the derivative portion because the option exercise was recorded separately. After the transaction he beneficially owns 187,880 shares. The option referenced was granted 09/17/2015 under the 2003 Outside Directors Stock Plan and fully vests six months from grant date as explained in the filing.

Positive

• Director purchase/exercise recorded demonstrating alignment of a director with company equity through exercise of 2,400 options
• Improved disclosed ownership: reporting increases Larry Shelton's beneficial ownership to 187,880 shares, enhancing transparency

Negative

• None.

Insights

Securities Analyst

TL;DR: Director exercised 2,400 options at $4.19, increasing direct ownership to 187,880 shares; transaction is routine and small relative to company size.

The Form 4 shows a non-qualified stock option exercise by director Larry Shelton on 09/02/2025 for 2,400 shares at a $4.19 exercise price. The option was originally granted 09/17/2015 under the 2003 Outside Directors Stock Plan and fully vests six months from the grant date per the explanation. This filing is a standard Section 16 disclosure of insider exercise activity; it does not present new operational or financial metrics for the company but documents insider ownership change.

Corporate Governance Expert

TL;DR: The disclosure documents a routine, vested option exercise by a director and confirms compliance with Section 16 reporting.

The filing indicates compliance with insider reporting rules and provides detail on the option grant source and vesting. The exercise reflects previously granted compensation being converted to common stock; there is no indication of a Rule 10b5-1 plan or other trading program in this Form 4. From a governance perspective this is a standard remuneration-to-ownership event without disclosed material governance concerns.

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

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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^*

Shelton Larry

(Last) (First) (Middle)

8302 DUNWOODY PLACE, SUITE 250

(Street)

ATLANTA, GA 30350

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
PERMA FIX ENVIRONMENTAL SERVICES INC [ PESI ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
09/02/2025

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

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

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

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	09/02/2025		M		2,400	A	$4.19	187,880	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
Stock Option (Right to Buy)	$4.19	09/02/2025		M			2,400	(1)	09/17/2025	Common Stock	2,400	$0	0	D

Explanation of Responses:

1. Non-Qualified Stock Option granted 09/17/2015 under the Company's 2003 Outside Directors Stock Plan. The option vests fully six months from grant date.

	/s/ Larry Shelton	09/03/2025
	** 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.

FAQ

What did PESI director Larry Shelton report on Form 4?

Larry Shelton reported exercising 2,400 non-qualified stock options on 09/02/2025, resulting in beneficial ownership of 187,880 shares.

What was the exercise price for the options exercised by Larry Shelton (PESI)?

The exercise price reported for the stock option was $4.19 per share.

When was the option that was exercised by Larry Shelton originally granted?

The option was granted on 09/17/2015 under the company’s 2003 Outside Directors Stock Plan.

Does the Form 4 show whether the option was vested?

Yes. The filing explains the non-qualified option vests fully six months from the grant date.

Did the Form 4 indicate use of a Rule 10b5-1 trading plan?

No. The Form 4 does not indicate that the transaction was made pursuant to a Rule 10b5-1 plan.