Perma Fix director Grumski receives 1,438-share grant

The director's reported direct common-stock holdings were 69,099 shares after the award.

Rhea-AI Filing Summary

Perma Fix Environmental Services Inc. (PESI) director Joseph Timothy Grumski acquired 1,438 shares of common stock through a grant or award on October 1, 2026. The reported per-share price was $11.7375, and his reported direct holdings after the transaction were 69,099 shares. The transaction is reported as a grant or award acquisition.

Insider Trade Summary

Grant/Award: 1,438 shares

Grant/Award 1 txn

Insider Grumski Joseph Timothy

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,438	$11.7375	$17K

Holdings After Transaction: Common Stock — 69,099 shares (Direct)

Key Figures

Shares acquired: 1,438 shares Reported per-share price: $11.7375 per share Direct holdings after transaction: 69,099 shares

3 metrics

Shares acquired 1,438 shares Grant or award on October 1, 2026

Reported per-share price $11.7375 per share Grant or award on October 1, 2026

Direct holdings after transaction 69,099 shares Reported after the October 1, 2026 transaction

FAQ

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How many PESI shares did director Joseph Timothy Grumski receive?

Joseph Timothy Grumski, a director of Perma Fix Environmental Services Inc. (PESI), acquired 1,438 shares of common stock through a grant or award on October 1, 2026. The reported per-share price was $11.7375, and his direct holdings after the transaction were 69,099 shares.

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 10/02/2026 - 08:00 AM Accepted by SEC EDGAR 10/02/2026 - 08:00 AM 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^*

Grumski Joseph Timothy

(Last) (First) (Middle)

8302 DUNWOODY PLACE, SUITE 250

(Street)

ATLANTA GEORGIA 30350

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/01/2026

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	10/01/2026		A		1,438	A	$11.7375	69,099	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/ Joseph Timothy Grumski	10/02/2026
	** 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)