TMC the metals company reports 22.1% stake in TMCR

TMC the metals company Inc., a British Columbia corporation, filed an amended ownership report stating it beneficially owns 13,923,077 common shares of Metals Royalty Co Inc. These are common shares without par value, CUSIP 591322102.

Rhea-AI Filing Summary

TMC the metals company Inc., a British Columbia corporation, filed an amended ownership report stating it beneficially owns 13,923,077 common shares of Metals Royalty Co Inc. These are common shares without par value, CUSIP 591322102.

The holding represents 22.1% of Metals Royalty’s outstanding common shares. This percentage is based on 63,048,943 common shares issued and outstanding as of August 10, 2026, as described in Metals Royalty’s Form 6-K. TMC holds sole voting and sole dispositive power over all 13,923,077 shares, with no shared voting or dispositive authority.

The reporting person’s principal office is in Vancouver, British Columbia, while Metals Royalty’s principal executive offices are in Calgary, Alberta. The report is signed by Craig Shesky, Chief Financial Officer of TMC, dated August 13, 2026.

Key Figures

Beneficially owned shares: 13,923,077 shares Ownership percentage: 22.1% Shares outstanding baseline: 63,048,943 shares +3 more

6 metrics

Beneficially owned shares 13,923,077 shares Common shares of Metals Royalty Co Inc. beneficially owned by TMC the metals company Inc.

Ownership percentage 22.1% Percent of Metals Royalty Co Inc. common shares beneficially owned by TMC the metals company Inc.

Shares outstanding baseline 63,048,943 shares Metals Royalty Co Inc. common shares issued and outstanding as of August 10, 2026

Sole voting power 13,923,077 shares Number of shares over which TMC the metals company Inc. has sole voting power

Sole dispositive power 13,923,077 shares Number of shares over which TMC the metals company Inc. has sole dispositive power

Signature date 08/13/2026 Date CFO Craig Shesky signed the ownership certification

Key Terms

beneficially owned, sole voting power, sole dispositive power, percent of class, +1 more

5 terms

beneficially owned financial

"The percent of Common Shares beneficially owned by the reporting person was calculated based on"

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 voting power financial

"Sole Voting Power 13,923,077.00 6 | Shared Voting Power 0.00"

Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.

sole dispositive power financial

"Sole Dispositive Power 13,923,077.00 8 | Shared Dispositive Power 0.00"

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.

percent of class financial

"(b) | Percent of class: 22.1 %"

Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.

CUSIP No. financial

"(e) | CUSIP No.: 591322102"

FAQ

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

How many Metals Royalty Co (TMCR) shares does TMC the metals company own?

TMC the metals company Inc. reports beneficial ownership of 13,923,077 common shares of Metals Royalty Co Inc. These shares are common shares without par value and are all under TMC’s sole voting and dispositive power.

What percentage of Metals Royalty Co (TMCR) does TMC the metals company hold?

TMC the metals company Inc. holds 22.1% of Metals Royalty Co Inc.’s outstanding common shares. This percentage is based on 63,048,943 shares issued and outstanding as of August 10, 2026, as referenced in a Form 6-K.

Does TMC the metals company share voting power over its TMCR stake?

No. TMC the metals company Inc. reports sole voting power over 13,923,077 shares of Metals Royalty Co Inc. It also reports no shared voting power and no shared dispositive power over any of these shares.

What is the total number of Metals Royalty Co (TMCR) shares outstanding used in this filing?

The reported ownership percentage is calculated using 63,048,943 Metals Royalty Co Inc. common shares issued and outstanding. This share count is as of August 10, 2026, according to the issuer’s Form 6-K.

Who signed the amended ownership report related to Metals Royalty Co (TMCR)?

The filing is signed by /s/ Craig Shesky, who is identified as the CFO of TMC the metals company Inc. The signature date on the certification page is August 13, 2026.

Where are TMC the metals company and Metals Royalty Co (TMCR) headquartered?

TMC the metals company Inc. lists its principal office at 1111 West Hastings Street, 15th Floor, Vancouver, BC. Metals Royalty Co Inc. lists its principal executive offices at 1900 Dome Tower, 333 7th Ave SW, Calgary, Alberta.

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

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Available on EDGAR 08/13/2026 - 05:20 PM Accepted by SEC EDGAR 08/13/2026 - 05:20 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Metals Royalty Co Inc.

(Name of Issuer)

Common Shares, without par value

(Title of Class of Securities)

591322102

(CUSIP Number)

06/01/2026

(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): 591322102

1

Names of Reporting Persons

TMC the metals Co Inc.

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

BRITISH COLUMBIA, CANADA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 13,923,077.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 13,923,077.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

13,923,077.00

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)

22.1 %

12

Type of Reporting Person (See Instructions)

CO

Comment for Type of Reporting Person: The percent of Common Shares beneficially owned by the reporting person was calculated based on 63,048,943 Common Shares issued and outstanding as of August 10, 2026, as described in the issuer's Report on Form 6-K filed with the Securities and Exchange Commission on August 10, 2026.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Metals Royalty Co Inc.
(b)	Address of issuer's principal executive offices: 1900 Dome Tower, 333 7th Ave SW, Calgary, Alberta, Canada T2P 2Z1
Item 2.
(a)	Name of person filing: TMC the metals company Inc., a publicly-traded corporation
(b)	Address or principal business office or, if none, residence: 1111 West Hastings Street, 15th Floor, Vancouver, British Columbia, Canada V6E 2J3
(c)	Citizenship: The reporting person is a corporation formed under the laws of British Columbia, Canada
(d)	Title of class of securities: Common Shares, without par value
(e)	CUSIP No.: 591322102
Item 4.	Ownership
(a)	Amount beneficially owned: 13,923,077
(b)	Percent of class: 22.1 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 13,923,077
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 13,923,077
	(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.
	Not Applicable
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:
	Not Applicable

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.

TMC the metals Co Inc.

Signature:	/s/ Craig Shesky
Name/Title:	Craig Shesky, CFO
Date:	08/13/2026