ZWECKER MARK A 4

What Happened
Mark A. Zwecker, a director of Perma-Fix Environmental Services, was granted 10,000 non‑qualified stock options on 2026-07-22. The reported acquisition price is $0.00 (derivative grant), meaning this Form 4 documents an option award rather than an immediate purchase of shares. This is a compensation/award transaction common for outside directors and is not a sale.

Key Details

• Transaction date: 2026-07-22 (filed 2026-07-23).
• Transaction type: Grant/Award of 10,000 non‑qualified stock options (derivative). Report shows $0.00 acquisition price.
• Vesting: Options vest in four equal annual installments of 25% each, beginning on the first anniversary of the grant (per footnote).
• Plan: Granted under the Company’s 2003 Outside Directors Stock Plan.
• Shares owned after transaction: Not specified in the provided filing details.
• Timeliness: Filing was submitted one day after the grant date (appears timely).

Context
This transaction is an option grant (award) to a director — it does not represent immediate ownership of shares. The director must wait for scheduled vesting and (if they choose) exercise the options according to plan terms before becoming a shareholder. Director option grants are routine compensation and do not by themselves indicate buying or selling sentiment.