Mark S. Chalmers - 27 Jan 2026 Form 4 Insider Report for ENERGY FUELS INC (UUUU)

Reporting relationship: CEO, Director
Issuer ticker: UUUU
Reported as of: 27 Jan 2026
Net transaction value: -$1,435,273
SEC form: 4
Accepted by SEC: 29 Jan 2026, 21:27:41 UTC
Prior SEC filing: 20 Nov 2025
Next SEC filing: 16 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Julia Hoffmeier as attorney-in-fact for Mark Chalmers

Key filing fact

Mark S. Chalmers filed Form 4 for ENERGY FUELS INC (UUUU) on 29 Jan 2026.

Key facts

This page summarizes Mark S. Chalmers's Form 4 filing for ENERGY FUELS INC (UUUU).
3 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 29 Jan 2026, 21:27.

Change

Previous filing in this sequence was filed on 20 Nov 2025.
Current net transaction value: -$1,435,273.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001678867 Primary reporting owner

Chalmers Mark

Relationship: CEO, Director
Address: C/O ENERGY FUELS INC., 225 UNION BLVD., SUITE 600, LAKEWOOD
Signature: /s/ Julia Hoffmeier as attorney-in-fact for Mark Chalmers
Signature date: 29 Jan 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

UUUU transaction

Common Shares

Award

Transaction value: $0
Shares: +38,289
Change %: +4.1%
Price: $0.000000
Shares after: 968,728
Date: 27 Jan 2026
Ownership: Direct
Footnotes: F1

UUUU transaction

Common Shares

Tax liability

Transaction value: $1,435,273
Shares: -59,407
Change %: -6.1%
Price: $24.16
Shares after: 909,321
Date: 27 Jan 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

UUUU transaction Derivative

Performance-Based Stock Options ("Options")

Award

Transaction value: $0
Shares: +44,066
Change %
Price: $0.000000
Shares after: 44,066
Date: 27 Jan 2026
Ownership: Direct
Underlying class: Common Shares
Underlying amount: 44,066
Exercise price: $26.07
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Reflects grant of 38,289 RSUs which vest as follows: 50% on 1/27/2027; 25% on 1/27/2028; and 25% on 1/27/2029.

Footnote F2

Reflects grant of 44,066 Options having a strike price at a 10% premium of the grant price of $23.70, which vest as follows: 50% on 1/27/2027 and 50% on 1/27/2028.

SEC remarks

EXHIBIT 24.2 Power of Attorney