Global X (DNN) holds 63.78M shares of Denison Mines (7.07%) on 03/31/2026

Rhea-AI Filing Summary

Global X Management Company LLC reports beneficial ownership of 63,782,091 common shares of Denison Mines Corp., representing 7.07% as of 03/31/2026.

The filing (Amendment No. 4 to a Schedule 13G) states GXMC has sole voting and sole dispositive power over 63,782,091 shares. The filing notes that interests of the Global X Uranium ETF relate to more than 5.00% of the class. The Schedule is signed by Ryan O'Connor on 05/15/2026.

Insights

Institutional Ownership Analyst

GXMC reports a 7.07% stake in Denison Mines held with sole voting and dispositive power.

The filing shows 63,782,091 shares beneficially owned as of 03/31/2026, representing 7.07% of the class. That stake size crosses the 5% reporting threshold and is disclosed via Amendment No. 4 to a Schedule 13G.

Holder-level interest is tied to the Global X Uranium ETF, which the filing identifies as having an interest exceeding 5.00%. Subsequent portfolio disclosures may clarify which GX-managed vehicles hold the economic interest.

Securities Compliance Counsel

The amendment updates beneficial ownership details and attributes sole voting/dispositive power to GXMC.

The Schedule 13G/A framework is used for passive or qualifying institutional investors; this amendment records exact voting and dispositive counts: 63,782,091 shares for both sole vote and sole dispositive power. The filing cites the 13G cover data as incorporated into Item 4.

Filing provenance: cover date is 03/31/2026 and the signature is dated 05/15/2026. No contractual changes or transfers are stated in the excerpt.

Key Figures

Shares beneficially owned: 63,782,091 shares Percent of class: 7.07% Shared voting/dispositive power: 0.00 shares

3 metrics

Shares beneficially owned 63,782,091 shares Amount reported as beneficially owned; Item 5-11 on cover; <date>03/31/2026</date>

Percent of class 7.07% Percent of common shares beneficially owned as of <date>03/31/2026</date>

Shared voting/dispositive power 0.00 shares Reported shared voting and shared dispositive power on cover page

Key Terms

Schedule 13G/A, Beneficially owned, Sole dispositive power

3 terms

Schedule 13G/A regulatory

"Amendment No. 4 to a Schedule 13G is referenced on the cover page"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Beneficially owned financial

"Item 4(a) incorporates the information on the cover page regarding amount beneficially owned"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Sole dispositive power regulatory

"Item 4(c)(iii) lists sole power to dispose as 63,782,091"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

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Available on EDGAR 05/15/2026 - 09:58 PM Accepted by SEC EDGAR 05/15/2026 - 09:58 PM Learn about SEC filing dates

FAQ

What stake does Global X Management Company LLC report in Denison Mines (DNN)?

Global X Management Company LLC reports beneficial ownership of 63,782,091 shares, representing 7.07% of Denison Mines' common shares as of 03/31/2026, per the Schedule 13G/A amendment.

Does GXMC hold voting control over the reported shares of DNN?

Yes. The filing states GXMC has sole power to vote and sole power to dispose of 63,782,091 shares, with 0 shared voting or dispositive power reported.

Which GX-managed vehicle is tied to this ownership disclosure?

The filing identifies the Global X Uranium ETF as having an interest that relates to more than 5% of the class, indicating ETF-held economic exposure within the GX-managed group.

What dates are associated with the Schedule 13G/A amendment for DNN?

The cover lists an ownership reference date of 03/31/2026, and the Schedule 13G/A amendment is signed by Ryan O'Connor on 05/15/2026.

Does the filing show any shared voting or dispositive power for these shares?

No. The Schedule lists 0 shares as shared voting power and 0 as shared dispositive power; all 63,782,091 shares are reported as held with sole voting and dispositive authority.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 4)

DENISON MINES CORP.

(Name of Issuer)

Common Shares

(Title of Class of Securities)

248356107

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 248356107

1

Names of Reporting Persons

Global X Management CO LLC

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 63,782,091.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 63,782,091.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

63,782,091.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.07 %

12

Type of Reporting Person (See Instructions)

IA

Comment for Type of Reporting Person: See Item 4 of this Filing

SCHEDULE 13G

Item 1.
(a)	Name of issuer: DENISON MINES CORP.
(b)	Address of issuer's principal executive offices: 40 University Avenue, Suite 1100, Toronto, Ontario, Canada, M5J 1T1
Item 2.
(a)	Name of person filing: Global X Management Company LLC ("GXMC")
(b)	Address or principal business office or, if none, residence: 605 3rd Avenue, 43rd Floor New York, NY 10158
(c)	Citizenship: Delaware
(d)	Title of class of securities: Common Shares
(e)	CUSIP No.: 248356107
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: The information in items 1 and 5 through 11 on the cover page (p. 2) on Schedule 13G is hereby incorporated by reference.
(b)	Percent of class: 7.07 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 63,782,091
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 63,782,091
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. Certain investment companies registered under Section 8 of the Investment Company Act of 1940 managed by GXMC have the right to receive any dividends from, or the proceeds from the sale of, the securities reported herein. Such interest of Global X Uranium ETF relates to more than 5 percent of the class of securities reported herein.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Global X Management CO LLC

Signature:	/s/ Ryan O'Connor
Name/Title:	Ryan O'Connor, Chief Executive Officer
Date:	05/15/2026