Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Mallon Liam M 2. Issuer Name and Ticker or Trading Symbol TMC the metals Co Inc. [TMC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O TMC THE METALS COMPANY INC., 1111 WEST HASTINGS STREET, 15TH FLOOR 3. Date of Earliest Transaction (Month/Day/Year) 09/25/2026 (Street) VANCOUVER V6E 2J3 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) 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) Code V Amount (A) or (D) Price Common Shares 09/25/2026 A 25,445(1) A $ 0 25,445 D Common Shares 09/28/2026 A 77,720(2) A $ 0 103,165 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities (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 of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Mallon Liam M C/O TMC THE METALS COMPANY INC. 1111 WEST HASTINGS STREET, 15TH FLOOR VANCOUVER V6E 2J3	X

Signatures

/s/ Michelle Ancosky, Attorney-in-Fact		10/09/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Pursuant to the Issuer's Nonemployee Director Compensation Policy, the Reporting Person was granted restricted stock units ("RSUs") under the Issuer's 2021 Incentive Equity Plan (the "Plan"), which will vest, subject to continued service through each vesting date, over a three-year period as follows: 1/3 on the first anniversary of September 25, 2026 (the "Initial Grant Date"), 1/3 on the second anniversary of the Initial Grant Date and 1/3 on the third anniversary of the Initial Grant Date. Each RSU represents the right to receive one common share upon vesting.
(2)	The Reporting Person was granted RSUs under the Plan, which will vest, subject to continued service through each vesting date, over a three-year period as follows: 1/3 on the first anniversary of September 28, 2026 (the "Special Grant Date"), 1/3 on the second anniversary of the Special Grant Date and 1/3 on the third anniversary of the Special Grant Date.

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