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6-K

Denison Mines Corp. (DNN)

6-K 2024-02-28 For: 2024-02-22
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Added on April 07, 2026

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Date: February 28, 2024

Commission File Number: 001-33414

Denison Mines Corp.

(Name of registrant)

1100-40 University Avenue

Toronto Ontario

M5J 1T1 Canada

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F  ☐            Form    40-F   ☒

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ☐

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

DENISON MINES<br>CORP.
/s/ Amanda Willett
Date: <br>February 28, 2024 Amanda<br>Willett
Vice<br>President Legal and Corporate Secretary

FORM 6-K EXHIBIT INDEX

Exhibit Number Description
99.1 Notice of<br>Meeting and Record Date

Blueprint

Exhibit 99.1

February 22, 2024 Computershare<br><br><br>100<br>University Avenue, 8th floor<br><br><br>Toronto ON, M5J<br>2Y1<br><br><br>www.computershare.com

To: All Canadian Securities Regulatory Authorities

Subject: DENISON MINES CORP.

Dear Sir/Madam:

We advise of the following with respect to the upcoming Meeting of Security Holders for the subject Issuer:

Meeting Type : Annual General<br>Meeting
Record Date for Notice of<br>Meeting : March 21, 2024
Record Date for Voting (if<br>applicable) : March 21, 2024
Beneficial Ownership<br>Determination Date : March 21, 2024
Meeting Date : May<br>09, 2024
Meeting Location (if<br>available) : Toronto, ON
Issuer sending proxy related<br>materials directly to NOBO: No
Issuer paying for delivery to<br>OBO: Yes
Notice and<br>Access (NAA) Requirements:
NAA<br>for Beneficial Holders Yes
Beneficial Holders<br>Stratification Criteria: Not<br>Applicable
NAA<br>for Registered Holders Yes
Registered Holders<br>Stratification Criteria: Not<br>Applicable

Voting Security Details:

Description CUSIP<br>Number ISIN
COMMON SHARES 248356107 CA2483561072

Sincerely,

Computershare

Agent for DENISON MINES CORP.