Perma-Fix Director Granted 10,000 Stock Options

Perma-Fix Environmental Services director Joseph Timothy Grumski received a grant of 10,000 non-qualified stock options on July 22, 2026.

Rhea-AI Filing Summary

Perma-Fix Environmental Services director Joseph Timothy Grumski received a grant of 10,000 non-qualified stock options on July 22, 2026. The options have an exercise price of $16.64 per share, expire on July 22, 2036, and are exercisable for 10,000 shares of common stock.

The award was issued under the Company’s 2003 Outside Directors Stock Plan and vests in four equal annual installments of 25% each, beginning on the first anniversary of the grant date and on each successive anniversary thereafter. Following this grant, Grumski holds 10,000 derivative securities directly.

Insider Trade Summary

Grant/Award: 10,000 shares

Grant/Award 1 txn

Insider Grumski Joseph Timothy

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy) F1	10,000	$0.00	$0.00

Holdings After Transaction: Stock Option (Right to Buy) — 10,000 contracts (Direct)

Footnotes (1)

1. F1. Non-Qualified Stock Option granted 07/22/2026 under the Company's 2003 Outside Directors Stock Plan. The option vests in four equal annual installmens of 25% each, beginning on the first anniversary of the grant date and on each successive anniversary thereafter.

Key Figures

Options Granted: 10,000 options Exercise Price: $16.64 per share Expiration Date: July 22, 2036 +1 more

4 metrics

Options Granted 10,000 options Non-Qualified Stock Option grant to director on July 22, 2026

Exercise Price $16.64 per share Exercise price for 10,000 non-qualified stock options

Expiration Date July 22, 2036 Expiration of the granted non-qualified stock options

Underlying Shares 10,000 shares Common stock underlying the stock option grant

Key Terms

Non-Qualified Stock Option, Outside Directors Stock Plan, vests in four equal annual installments

3 terms

Non-Qualified Stock Option financial

"Non-Qualified Stock Option granted 07/22/2026 under the Company's 2003 Outside Directors Stock Plan."

A non-qualified stock option (NSO) is a contract that lets an employee or service provider buy company shares at a fixed price for a set period, like a voucher to purchase stock later at today’s price. It matters to investors because exercising NSOs creates ordinary income for the holder and can increase share count, affecting a company’s earnings and ownership mix; think of it as a future sale that can dilute existing shareholders and has immediate tax consequences for the recipient.

Outside Directors Stock Plan financial

"granted 07/22/2026 under the Company's 2003 Outside Directors Stock Plan."

vests in four equal annual installments financial

"The option vests in four equal annual installmens of 25% each, beginning on the first anniversary"

FAQ

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

What insider transaction did PESI report for director Joseph Timothy Grumski?

Perma-Fix Environmental Services (PESI) reported that director Joseph Timothy Grumski received a grant of 10,000 non-qualified stock options. The options were granted on July 22, 2026 at an exercise price of $16.64 per share, expiring on July 22, 2036.

What are the key terms of the 10,000 stock options granted to PESI director Grumski?

The grant to PESI director Grumski consists of 10,000 non-qualified stock options with an exercise price of $16.64 per share. The options expire July 22, 2036 and relate to 10,000 shares of common stock as the underlying security.

How do the PESI stock options granted to Grumski vest over time?

The 10,000 non-qualified stock options granted to PESI director Grumski vest in four equal annual installments. Vesting occurs at 25% per year, beginning on the first anniversary of the July 22, 2026 grant date and on each successive anniversary.

Under what plan were the PESI stock options to Grumski granted?

The options granted to PESI director Grumski were issued under the company’s 2003 Outside Directors Stock Plan. The filing describes them as a Non-Qualified Stock Option granted on July 22, 2026 pursuant to that plan’s terms for outside directors.

What is Grumski’s reported derivative holdings in PESI after this transaction?

After the reported transaction, director Grumski holds 10,000 derivative securities related to PESI. These represent the non-qualified stock options granted on July 22, 2026, held with direct ownership as disclosed in the Form 4 filing’s post-transaction holdings field.

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

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Accepted by SEC EDGAR 07/23/2026 - 07:00 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)
07/22/2026

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

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)	$16.64	07/22/2026		A		10,000		(1)	07/22/2036	Common Stock	10,000	$0	10,000	D

Explanation of Responses:

1. Non-Qualified Stock Option granted 07/22/2026 under the Company's 2003 Outside Directors Stock Plan. The option vests in four equal annual installmens of 25% each, beginning on the first anniversary of the grant date and on each successive anniversary thereafter.

	/s/ Joseph Timothy Grumski	07/23/2026
	** 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)