Were any of the enCore Energy (EU) share purchases made through a related person?

Yes. On May 18, 25,000 enCore Energy shares were purchased at $1.47 per share and are reported as held “By Spouse.” These shares are classified as indirect ownership for William M. Sheriff in the Form 4 disclosure.

Executive chair of enCore Energy (EU) buys 100,000 common shares in market

Filing Impact

(Moderate)

Filing Sentiment

(Positive)

Form Type

Rhea-AI Filing Summary

enCore Energy Corp.’s Executive Chairman William M. Sheriff reported open-market purchases of 100,000 shares of Common Stock. On May 18, he bought 50,000 shares at $1.49 per share directly and 25,000 shares at $1.47 per share through his spouse, reported as indirect ownership. On May 19, he purchased a further 25,000 shares at $1.39 per share directly, bringing his directly held stake to 1,412,169 shares, with an additional 25,000 shares held indirectly by his spouse. The filing notes he has agreed to voluntarily disgorge to enCore Energy Corp. any statutory “profits” under Section 16(b) of the Exchange Act arising from these transactions.

Insights

Executive chair makes sizable net open-market share purchases.

Executive Chairman William M. Sheriff reported net open-market purchases of 100,000 shares of enCore Energy Corp. common stock at prices between $1.39 and $1.49 per share. After these trades, he holds 1,412,169 shares directly plus 25,000 shares indirectly via his spouse.

All transactions carry code P, indicating open-market purchases rather than option exercises or tax-related movements. The absence of derivative positions in the filing suggests no remaining options or similar instruments are reported in this instance.

The footnote states he agreed to voluntarily disgorge any statutory Section 16(b) “profits” from these trades to the company. That reflects compliance with short-swing profit rules rather than altering the economic scale of the disclosed share purchases.

Insider Trade Summary 10b5-1

Net Buyer: 100,000 shares ($146,000)

Net Buy 3 txns

Insider SHERIFF WILLIAM M

Role Executive Chairman

Bought 100,000 shs ($146K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	25,000	$1.39	$35K
Purchase	Common Stock	50,000	$1.49	$75K
Purchase	Common Stock	25,000	$1.47	$37K

Holdings After Transaction: Common Stock — 1,412,169 shares (Direct, null); Common Stock — 25,000 shares (Indirect, By Spouse.)

Footnotes (1)

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Key Figures

Total shares purchased: 100,000 shares Purchase on May 18 (direct): 50,000 shares at $1.49/share Purchase on May 18 (spouse): 25,000 shares at $1.47/share +3 more

6 metrics

Total shares purchased 100,000 shares Net open-market purchases reported in this Form 4

Purchase on May 18 (direct) 50,000 shares at $1.49/share Common Stock open-market purchase on 2026-05-18

Purchase on May 18 (spouse) 25,000 shares at $1.47/share Common Stock purchase reported as indirect, By Spouse

Purchase on May 19 (direct) 25,000 shares at $1.39/share Common Stock open-market purchase on 2026-05-19

Direct holdings after trades 1,412,169 shares Total direct common stock ownership following May 19 purchase

Indirect holdings after trades 25,000 shares Common Stock held indirectly By Spouse after May 18 purchase

Key Terms

open-market purchase, Section 16(b), statutory "profits", indirect ownership, +1 more

5 terms

open-market purchase financial

"transaction_action":"open-market purchase"

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

Section 16(b) regulatory

"statutory "profits" pursuant to Section 16(b) of the Securities Exchange Act"

A federal rule that requires company insiders—like officers, directors and large shareholders—to return any profits made from buying and selling the company’s stock within a six-month window. It matters to investors because it discourages short-term trades that could exploit non-public information and helps protect outside shareholders by creating a simple, enforceable way to recover unfair gains, much like a rule stopping someone from flipping a limited-edition item for quick profit after getting early access.

statutory "profits" regulatory

"voluntarily disgorge to enCore Energy Corp. all statutory "profits""

indirect ownership financial

"ownership_type":"indirect","ownership_code":"I""

Common Stock financial

"security_title":"Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Form 4 Insider Transactions: What Each Field Means →

05/20/2026 - 07:41 PM

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)
05/18/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	05/18/2026		P		50,000	A	$1.49	1,387,169	D⁽¹⁾
Common Stock	05/19/2026		P		25,000	A	$1.39	1,412,169	D
Common Stock	05/18/2026		P		25,000	A	$1.47	25,000	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. The Reporting Person has agreed to voluntarily disgorge to enCore Energy Corp. all statutory "profits" pursuant to Section 16(b) of the Securities Exchange Act of 1934, as amended, that resulted from the transactions reported herein.

	/s/ Robert W. Hudson Jr. as attorney-in-fact for William M. Sheriff	05/20/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

How many enCore Energy (EU) shares did the Executive Chairman buy?

The Executive Chairman, William M. Sheriff, reported buying a total of 100,000 enCore Energy common shares. These included 75,000 shares held directly and 25,000 shares purchased through his spouse, reported as indirect ownership, across transactions on May 18 and May 19.

At what prices did William M. Sheriff purchase enCore Energy (EU) shares?

William M. Sheriff bought enCore Energy common stock at prices between $1.39 and $1.49 per share. Specifically, he purchased at $1.49 and $1.47 on May 18, and at $1.39 on May 19, all reported as open-market transactions.

What are William M. Sheriff’s holdings in enCore Energy after these trades?

After the reported trades, William M. Sheriff holds 1,412,169 enCore Energy common shares directly. In addition, 25,000 shares are held indirectly through his spouse, as disclosed in the Form 4, reflecting both his direct and indirect ownership positions.

What does the Section 16(b) “profits” disgorgement note mean for this enCore Energy filing?

The filing states William M. Sheriff agreed to voluntarily disgorge to enCore Energy any statutory “profits” under Section 16(b) from these trades. Section 16(b) addresses short-swing profits by insiders, and this note reflects his agreement regarding those potential profits.

Does the Form 4 show any option exercises or derivative positions for enCore Energy (EU)?

No derivative transactions or option exercises are listed in this Form 4. All three reported trades are non-derivative open-market purchases of common stock, and the derivative position summary section in the filing is empty for this reporting period.