PERMA FIX ENVIRONMENTAL SERVICES INC — Director's Dealing 2025

Jul 15, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: PERMA FIX ENVIRONMENTAL SERVICES INC (PESI)
CIK: 0000891532
Period of Report: 2025-07-14

Reporting Person: Grondin Richard (EVP of Hanford & Int. Waste Op)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-07-14	Common Stock	M	5000	$7.0050	Acquired	33780	Direct
2025-07-14	Common Stock	F	3094	$11.3200	Disposed	30686	Direct
2025-07-14	Common Stock	M	6000	$3.9500	Acquired	36686	Direct
2025-07-14	Common Stock	F	2094	$11.3200	Disposed	34592	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-07-14	Stock Option	$7.0050	M	5000	Disposed	2027-10-14	Common Stock (5000)	Direct
2025-07-14	Stock Option	$3.9500	M	6000	Disposed	2029-01-19	Common Stock (6000)	Direct

Footnotes

F1: On July 14, 2025, the Reporting Person exercised the incentive stock option granted 10/14/2021 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of 5,000 shares of the Company's Common Stock at an exercise price of $7.005 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $35,025. Since the fair market value of the Company's Common Stock on July 14, 2025 (as determined in accordance with the 2017 Plan) was $11.32 per share, the Company withheld 3,094 shares of Common Stock ($35,025 divided by $11.32) to pay the aggregate exercise price of the option.

F2: On July 14, 2025, the Reporting Person exercised the incentive stock option granted 1/19/2023 under the Company's 2017 Stock Option Plan (the "2017 Plan") for the purchase of 6,000 shares of the Company's Common Stock at an exercise price of $3.95 per share (the "Option shares"). As permitted by the 2017 Plan, the Reporting Person elected to pay the exercise price of the Option Shares by having the Company withhold from the Option Shares a number of shares having a fair market value equal to the aggregate exercise price of $23,700. Since the fair market value of the Company's Common Stock on July 14, 2025 (as determined in accordance with the 2017 Plan) was $11.32 per share, the Company withheld 2,094 shares of Common Stock ($23,700 divided by $11.32) to pay the aggregate exercise price of the option.

F3: Incentive stock option granted 10/14/2021 under the Company's 2017 Stock Option Plan for the purchase of up to 25,000 shares of the Company's Common Stock. The option is for a 6 year period and vests over a 5 year period, at 1/5 increment per year.

F4: Incentive stock option granted 01/19/2023 under the Company's 2017 Stock Option Plan for the purchase of up to 30,000 shares of the Company's Common Stock. The option is for a 6 year period and vests over a 5 year period, at 1/5 increment per year.