6-K

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

of the Securities Exchange Act of 1934

Date: May 4, 2018

Commission File Number: 001-33414

Denison Mines Corp.

(Translation of registrant’s name into English)

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 Corp.
	/s/ Amanda Willett
Date:  May 4, 2018	Amanda Willett
	Corporate Counsel and Corporate Secretary

EXHIBIT INDEX

Exhibit Number	Description
99.1	Press release dated May 3, 2018
99.2	Report of Voting Results

EX-99.1

Denison Mines Corp. 1100 – 40 University Ave Toronto, ON M5J 1T1 www.denisonmines.com @DenisonMinesCo

PRESS RELEASE

DENISON ANNOUNCES

RESULTS OF SHAREHOLDER MEETING

Toronto, ON – May 3, 2018 Denison Mines Corp. (“Denison” or the “Company”) (DML: TSX, DNN: NYSE American) is pleased to report that the nominees listed in the management proxy circular dated March 22, 2018 (the “Circular”) for the 2018 Annual General and Special Meeting of Shareholders held today in Toronto (the "Meeting ") were elected as directors of the Company. Detailed results of the vote for the election of directors are set out below.

Nominee	Votes For	% For	Votes Withheld	% Withheld
W. Robert Dengler	217,176,845	99.05%	2,088,378	0.95%
Brian D. Edgar	216,933,142	98.94%	2,332,081	1.06%
Ron F. Hochstein	172,033,712	78.46%	47,231,511	21.54%
Kwang Hee Jeong	217,455,474	99.17%	1,809,749	0.83%
Lukas H. Lundin	172,614,771	78.72%	46,650,452	21.28%
William A. Rand	217,146,375	99.03%	2,118,848	0.97%
Catherine Stefan	216,897,854	98.92%	2,367,369	1.08%

The Company is also pleased to report that all other items of business presented to its shareholders at the Meeting, each as more particularly described in the Circular, were approved, including:

(a)

Ratification and confirmation of the Company’s Share Unit Plan; and

Votes For	% For	Votes Against	% Against
180,166,733	82.17%	39,087,722	17.83%

(b)

Ratification and confirmation of the Previous Grant of Share Units under the Company’s Share Unit Plan.

Votes For	% For	Votes Against	% Against
183,983,499	83.91%	35,273,656	16.09%

The Company has provided more details on the results of all matters considered at the Meeting in its Report of Voting Results filed under its profile on SEDAR at www.sedar.com and EDGAR at www.sec.gov/edgar.

About Denison

Denison is a uranium exploration and development company with interests focused in the Athabasca Basin region of northern Saskatchewan, Canada. In addition to its 63.3% owned Wheeler River project, which ranks as the largest undeveloped high-grade uranium project in the infrastructure rich eastern portion of the Athabasca Basin region, Denison's Athabasca Basin exploration portfolio consists of numerous projects covering approximately 353,000 hectares. Denison's interests in Athabasca Basin also include a 22.5% ownership interest in the McClean Lake joint venture (“MLJV”), which includes several uranium deposits and the McClean Lake uranium mill, which is currently processing ore from the Cigar Lake mine under a toll milling agreement, plus a 25.17% interest in the Midwest and Midwest A deposits, and a 64.22% interest in the J Zone deposit and Huskie discovery on the Waterbury Lake property. Each of Midwest, Midwest A, J Zone and Huskie are located within 20 kilometres of the McClean Lake mill.

Denison is also engaged in mine decommissioning and environmental services through its Denison Environmental Services division and is the manager of Uranium Participation Corp., a publicly traded company which invests in uranium oxide and uranium hexafluoride.

For more information, please contact

David Cates	(416) 979-1991 ext. 362
President and Chief Executive Officer
Sophia Shane	(604) 689-7842
Investor Relations
Follow Denison on Twitter	@DenisonMinesCo

EX-99.2

Denison Mines Corp. 1100 – 40 University Ave Toronto, ON M5J 1T1 www.denisonmines.com @DenisonMinesCo

May 3, 2018

VIA SEDAR

Ontario Securities Commission

British Columbia Securities Commission

Alberta Securities Commission

Saskatchewan Financial Services Commission

The Manitoba Securities Commission

New Brunswick Securities Commission

Nova Scotia Securities Commission

Prince Edward Island Securities Office

Securities Commission of Newfoundland and Labrador

The Toronto Stock Exchange

Denison Mines Corp. - Report of Voting Results

In accordance with Section 11.3 of National Instrument 51-102 – Continuous Disclosure Obligations, we hereby advise of the results of the voting on the matters submitted to the annual general and special meeting (the “Meeting”) of the shareholders (the “Shareholders”) of Denison Mines Corp. (the “Corporation”) held on May 3, 2018.

The matters voted upon at the Meeting and the results of the voting were as follows:

Item 1: Election of Directors

The seven nominees set forth in the Corporation’s 2018 Management Proxy Circular dated March 22, 2018 (the “Circular”) were elected as directors of the Corporation by majority vote cast. The matter was voted upon by ballot at the Meeting and the outcome of voting was as follows:

Nominee	Votes For	% For	Votes Withheld	% Withheld
W. Robert Dengler	217,176,845	99.05%	2,088,378	0.95%
Brian D. Edgar	216,933,142	98.94%	2,332,081	1.06%
Ron F. Hochstein	172,033,712	78.46%	47,231,511	21.54%
Kwang Hee Jeong	217,455,474	99.17%	1,809,749	0.83%
Lukas H. Lundin	172,614,771	78.72%	46,650,452	21.28%
William A. Rand	217,146,375	99.03%	2,118,848	0.97%
Catherine Stefan	216,897,854	98.92%	2,367,369	1.08%

Item 2: Appointment of Auditors

By majority vote cast by show of hands, PricewaterhouseCoopers LLP was appointed auditor of the Corporation to hold office until the close of the next annual meeting of shareholders or until its successor is appointed, and the directors of the Corporation were authorized to fix the remuneration of the auditor. If a ballot had been taken, based upon proxy votes by Shareholders received by the Corporation, the voting results on the appointment of the auditors would have been as follows:

Votes For	% For	Votes Withheld	% Withheld
297,516,927	98.68%	3,976,866	1.32%

Item 3: Share Unit Plan

By majority vote cast by show of hands, the Corporation’s Share Unit Plan (the “Share Unit Plan Resolution”), the full text of which is set out on page 13 of the Circular, was ratified and confirmed. If a ballot had been taken, based upon proxy votes by Shareholders received by the Corporation, the voting results on the Share Unit Plan Resolution would have been as follows:

Votes For	% For	Votes Against	% Against
180,166,733	82.17%	39,087,722	17.83%

Item 4: Previous Grants of Share Units under the Share Unit Plan

By majority vote cast by show of hands, the previous grant of share units under the Corporation’s Share Unit Plan (the “Prior Grant Resolution”), the full text of which is set out on page 14 of the Circular, were ratified and confirmed. If a ballot had been taken, based upon proxy votes by Shareholders received by the Corporation, the voting results on the Prior Grant Resolution would have been as follows:

Votes For	% For	Votes Against	% Against
183,983,499	83.91%	35,273,656	16.09%

Item 5: Advisory Vote on Executive Compensation

By majority vote cast by show of hands, a non-binding advisory resolution accepting the Corporation’s approach to executive compensation (the “Executive Compensation Resolution”), the full text of which is set out on page 12 of the Circular, was approved. If a ballot had been taken, based upon proxy votes by Shareholders received by the Corporation, the voting results on the Executive Compensation Resolution would have been as follows:

Votes For	% For	Votes Against	% Against
167,158,690	76.24%	52,097,245	23.76%

DENISON MINES CORP.

By:           

_(signed) “Amanda Willett”_____

Amanda Willett

Corporate Counsel & Corporate Secretary