enCore Energy chair buys 125K shares at $0.81

enCore Energy’s Executive Chairman increased his direct and indirect holdings by 125,000 shares through open-market purchases using a CAD-to-USD exchange-rate conversion.

Rhea-AI Filing Summary

enCore Energy Corp. (EU) Executive Chairman William M. Sheriff reported open-market purchases of common stock on September 18, 2026. He bought 100,000 shares directly and 25,000 shares indirectly through his spouse at $0.81 per share, based on a CAD $1.14 price converted at the Bank of Canada’s daily average exchange rate. Following these trades, he held 1,662,169 shares directly and 75,000 shares indirectly. No Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Net Buyer: 125,000 shares

Net Buy 2 txns

Insider SHERIFF WILLIAM M

Role Executive Chairman

Bought 125,000 shs ($101K)

Type	Security	Shares	Price	Value
Purchase	Common Stock F1	100,000	$0.81	$81K
Purchase	Common Stock F1	25,000	$0.81	$20K

Holdings After Transaction: Common Stock — 1,662,169 shares (Direct); Common Stock — 75,000 shares (Indirect, By Spouse.)

Footnotes (1)

1. F1. Represents a purchase price of $1.14 Canadian dollars, converted to U.S. dollars at the daily average exchange rate of $1.00 to CAD$1.4002 reported by the Bank of Canada on September 18, 2026.

Key Figures

Direct shares purchased: 100,000 shares Indirect shares purchased: 25,000 shares Purchase price per share (USD): $0.81 per share +5 more

8 metrics

Direct shares purchased 100,000 shares Common Stock purchased directly by William M. Sheriff on September 18, 2026

Indirect shares purchased 25,000 shares Common Stock purchased and held indirectly by spouse on September 18, 2026

Purchase price per share (USD) $0.81 per share Price paid for both direct and indirect purchases

Purchase price per share (CAD) CAD$1.14 per share Converted to USD at Bank of Canada daily average exchange rate on September 18, 2026

Exchange rate 1.0000 USD to CAD$1.4002 Daily average exchange rate used for conversion on September 18, 2026

Direct holdings after transaction 1,662,169 shares Common Stock held directly by William M. Sheriff after purchases

Indirect holdings after transaction 75,000 shares Common Stock held indirectly through spouse after purchases

Total shares bought 125,000 shares Aggregate of direct and indirect purchases on September 18, 2026

Key Terms

Executive Chairman, indirect ownership, daily average exchange rate, Bank of Canada

4 terms

Executive Chairman financial

"SHERIFF WILLIAM M is listed with the officer title "Executive Chairman""

An executive chairman is the board leader who also takes an active role in running the company, combining oversight of the board with hands-on involvement in strategy and major decisions. For investors, this matters because it concentrates influence in one person—like a team captain who both sets the game plan and plays on the field—so their judgment can speed decisions but also increases governance and succession risk that can affect stock value.

indirect ownership financial

"A transaction is reported as indirect ownership with nature "By Spouse.""

daily average exchange rate financial

"Converted at the daily average exchange rate of $1.00 to CAD$1.4002"

Bank of Canada regulatory

"Exchange rate was reported by the Bank of Canada on September 18, 2026"

FAQ

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

What insider transaction did enCore Energy Corp. (EU) report for William M. Sheriff?

William M. Sheriff, Executive Chairman, reported open-market purchases of enCore Energy common stock on September 18, 2026, including both direct purchases in his own name and indirect purchases through his spouse.

How many enCore Energy (EU) shares did William M. Sheriff purchase?

He purchased a total of 125,000 shares of enCore Energy common stock on September 18, 2026, consisting of 100,000 shares held directly and 25,000 shares held indirectly through his spouse.

What price did William M. Sheriff pay per enCore Energy (EU) share?

He paid $0.81 per share in U.S. dollars. A footnote states this reflects a purchase price of CAD$1.14 per share, converted at the Bank of Canada’s 1.0000 to CAD$1.4002 daily average exchange rate on September 18, 2026.

What are William M. Sheriff’s enCore Energy (EU) holdings after these transactions?

After the transactions, William M. Sheriff held 1,662,169 shares of enCore Energy common stock directly and 75,000 shares indirectly through his spouse, as reported in the filing’s post-transaction share totals.

Were William M. Sheriff’s enCore Energy (EU) trades made under a Rule 10b5-1 plan?

No. The filing’s Rule 10b5-1 checkbox is marked such that no Rule 10b5-1 trading plan is reported for these transactions, indicating they were not affirmatively identified as made under a pre-arranged trading plan.

How is William M. Sheriff’s indirect ownership in enCore Energy (EU) described?

The indirect ownership is described as "By Spouse", with 75,000 shares reported as held indirectly following the transaction, distinguishing these from his directly owned shares.

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

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Available on EDGAR 09/21/2026 - 07:05 AM Accepted by SEC EDGAR 09/21/2026 - 07:05 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^*

SHERIFF WILLIAM M

(Last) (First) (Middle)

ONE GALLERIA TOWER,

13355 NOEL RD, SUITE 1700

(Street)

DALLAS TEXAS 75240

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
enCore Energy Corp. [ EU ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Executive Chairman

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/18/2026

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
Common Stock	09/18/2026		P		100,000	A	$0.81(1)	1,662,169	D
Common Stock	09/18/2026		P		25,000	A	$0.81(1)	75,000	I	By Spouse.

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

Explanation of Responses:

1. Represents a purchase price of $1.14 Canadian dollars, converted to U.S. dollars at the daily average exchange rate of $1.00 to CAD$1.4002 reported by the Bank of Canada on September 18, 2026.

	/s/ Robert W. Hudson Jr. as attorney-in-fact for William M. Sheriff	09/21/2026
	** 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)