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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549 |
SCHEDULE 13D
Under the Securities Exchange Act of 1934
(Amendment No. 10)
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MERCER INTERNATIONAL INC. (Name of Issuer) |
Common Stock, par value $1.00 (Title of Class of Securities) |
588056101 (CUSIP Number) |
Peter R. Kellogg 48 Wall Street, 30th Floor, New York, NY, 10005 (212) 389-5841 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) |
11/14/2025 (Date of Event Which Requires Filing of This Statement) |

SCHEDULE 13D
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| CUSIP No. | 588056101 |
| 1 |
Name of reporting person
Peter R. Kellogg | ||||||||
| 2 | Check the appropriate box if a member of a Group (See Instructions)
(a)
(b)
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| 3 | SEC use only | ||||||||
| 4 |
Source of funds (See Instructions)
OO | ||||||||
| 5 |
Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)
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| 6 | Citizenship or place of organization
UNITED STATES
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| Number of Shares Beneficially Owned by Each Reporting Person With: |
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| 11 | Aggregate amount beneficially owned by each reporting person
24,469,540.00 | ||||||||
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)
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| 13 | Percent of class represented by amount in Row (11)
36.5 % | ||||||||
| 14 | Type of Reporting Person (See Instructions)
IN |
SCHEDULE 13D
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| Item 1. | Security and Issuer |
| (a) | Title of Class of Securities:
Common Stock, par value $1.00 |
| (b) | Name of Issuer:
MERCER INTERNATIONAL INC. |
| (c) | Address of Issuer's Principal Executive Offices:
Suite 1120, 700 West Pender Street, Vancouver,
BRITISH COLUMBIA, CANADA
, V6C 1G8. |
| Item 5. | Interest in Securities of the Issuer |
| (a) | As of the close of business on November 14, 2025, Mr. Kellogg beneficially owned an aggregate of 24,469,540 shares, constituting approximately 36.5% of the shares outstanding. |
| (b) | As of the close of business on November 14, 2025, Mr. Kellogg beneficially owned an aggregate of 24,469,540 shares, constituting approximately 36.5% of the shares outstanding. |
| (c) | During October 3, 2025 through November 14, 2025, entities controlled by Mr. Kellogg purchased an aggregate of 838,540 shares at prices ranging from $1.68 to $2.79 per share through the Nasdaq Stock Market.
All such transactions have been reported on a Form 4 filed by Mr. Kellogg. |
| 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.
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