STOCK TITAN

Perma-Fix Environmental (PESI) director exercises 2,400 options at $4.60

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Perma-Fix Environmental Services director Larry Shelton exercised stock options to acquire 2,400 shares of common stock at $4.60 per share on July 13, 2026. The options were non-qualified awards granted July 28, 2016 under the Outside Directors Stock Plan. Following the exercise, he holds 198,983 shares directly.

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Insider Shelton Larry
Role Director
Type Security Shares Price Value
Exercise Stock Option (Right to Buy) 2,400 $0.00 --
Exercise Common Stock 2,400 $4.60 $11K
Holdings After Transaction: Stock Option (Right to Buy) — 0 shares (Direct); Common Stock — 198,983 shares (Direct)
Footnotes (1)
  1. [object Object]
Shares acquired 2400 shares Common stock from option exercise on 2026-07-13
Exercise price $4.6000 per share Conversion or exercise price of Non-Qualified Stock Option
Shares owned after transaction 198983 shares Direct common stock holdings following the exercise
Option expiration date 2026-07-28 Expiration date of the exercised Stock Option (Right to Buy)
Non-Qualified Stock Option financial
"Non-Qualified Stock Option granted 07/28/2016 under the Company's 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 07/28/2016 under the Company's Outside Directors Stock Plan."
derivative security financial
"transaction_code_description: Exercise or conversion of derivative security"
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
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FAQ

What insider activity did PESI director Larry Shelton report?

Larry Shelton reported exercising stock options to acquire 2,400 shares of Perma-Fix common stock. The options carried a $4.60 exercise price and were granted in 2016 under the Outside Directors Stock Plan, increasing his direct holdings to 198,983 shares after the transaction.

How many PESI shares did Larry Shelton acquire and at what price?

He acquired 2,400 shares of Perma-Fix Environmental Services common stock at an exercise price of $4.60 per share. The shares came from exercising a non-qualified stock option originally granted in 2016 under the company’s Outside Directors Stock Plan.

What type of option did Larry Shelton exercise in this PESI filing?

Larry Shelton exercised a Non-Qualified Stock Option covering 2,400 shares of Perma-Fix common stock. The award was granted on 07/28/2016 under the company’s Outside Directors Stock Plan and had fully vested six months after the original grant date, according to the footnote.

How many PESI shares does Larry Shelton own after this transaction?

After the reported option exercise, Larry Shelton directly owns 198,983 shares of Perma-Fix common stock. This figure reflects his total direct holdings immediately following the 2,400-share acquisition from exercising the non-qualified stock option at a $4.60 exercise price.

What was the expiration date of the PESI options Larry Shelton exercised?

The non-qualified stock options exercised by Larry Shelton carried an expiration date of 2026-07-28. He exercised the full 2,400-share award before that expiration, and the derivative position for this specific option grant now shows zero shares remaining in the reported line.
SEC Form 4
FORM 4UNITED 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*
Shelton Larry

(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)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/13/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock07/13/2026M2,400A$4.6198,983D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (Right to Buy)$4.607/13/2026M2,400 (1)07/28/2026Common Stock2,400$00D
Explanation of Responses:
1. Non-Qualified Stock Option granted 07/28/2016 under the Company's Outside Directors Stock Plan. The option vests fully six months from grant date.
/s/ Larry Shelton07/14/2026
** Signature of Reporting PersonDate
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)