STOCK TITAN

Kellogg-affiliated entities boost Mercer (MERC) stake with 300,000-share open-market buys

Filing Impact
(Moderate)
Filing Sentiment
(Positive)
Form Type
4

Rhea-AI Filing Summary

Mercer International Inc. insider activity: Ten percent owner Peter R. Kellogg reported open-market purchases of Mercer International common stock through affiliated entities. Harco acquired 200,000 shares at $0.8811 per share on May 14, 2026 and 57,000 shares at $0.8773 per share on May 12, 2026, while E.G. Anderson Inc. acquired 43,000 shares at $0.8412 per share on May 12, 2026. Following these transactions, Harco held 1,257,000 shares indirectly, and Kellogg also reported substantial additional indirect and direct holdings across multiple entities.

Positive

  • None.

Negative

  • None.
Insider KELLOGG PETER R
Role null
Bought 300,000 shs ($262K)
Type Security Shares Price Value
Purchase Common Stock 200,000 $0.8811 $176K
Purchase Common Stock 43,000 $0.8412 $36K
Purchase Common Stock 57,000 $0.8773 $50K
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Holdings After Transaction: Common Stock — 1,257,000 shares (Indirect, Via Harco); Common Stock — 965,929 shares (Direct, null)
Footnotes (1)
Harco purchase 1 200,000 shares at $0.8811/share Non-derivative open-market purchase on May 14, 2026, indirect via Harco
Harco purchase 2 57,000 shares at $0.8773/share Non-derivative open-market purchase on May 12, 2026, indirect via Harco
E.G. Anderson Inc. purchase 43,000 shares at $0.8412/share Non-derivative open-market purchase on May 12, 2026, indirect via E.G. Anderson Inc.
Harco holdings after trades 1,257,000 shares Indirect Mercer common stock held via Harco after May 14, 2026 purchase
Direct common stock holding 965,929 shares Direct Mercer common stock reported in holding entry dated May 12, 2026
IAT Insurance Co. Ltd. holding 13,475,000 shares Indirect Mercer common stock held via IAT Insurance Co. Ltd.
Spouse holding 2,300,000 shares Indirect Mercer common stock held via Spouse
Bermuda Partners holding 2,000,000 shares Indirect Mercer common stock held via Bermuda Partners
open-market purchase financial
"transaction_action": "open-market purchase""
An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.
ten percent owner financial
""is_ten_percent_owner": 1"
indirect ownership financial
""ownership_type": "indirect""
non-derivative financial
""transaction_type": "non-derivative""
Common Stock financial
""security_title": "Common Stock""
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
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 for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
KELLOGG PETER R

(Last)(First)(Middle)
48 WALL STREET C/O IAT INSURANCE CO. LTD

(Street)
NEW YORK NEW YORK 10005

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
MERCER INTERNATIONAL INC. [ MERC ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
DirectorX10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
05/12/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common Stock05/12/2026P43,000A$0.8412253,000IVia E.G. Anderson Inc.
Common Stock05/12/2026P57,000A$0.87731,057,000IVia Harco
Common Stock05/14/2026P200,000A$0.88111,257,000IVia Harco
Common Stock965,929D
Common Stock1,000,000IVia Peter and Cynthia Kellogg Foundation
Common Stock1,360,000IVia Non Marital PRK Trust
Common Stock2,300,000IVia Spouse
Common Stock2,000,000IVia Bermuda Partners
Common Stock10,000IVia Cardia Company Inc.
Common Stock13,475,000IVia IAT Insurance Co. Ltd.
Common Stock10,000IVia C. Kellogg & P Kellogg TTEE U/W Charles A Kirkland Trust
Common Stock35,000IVia the Myth and Barnegat Restoration Society, Inc.
Common Stock10,000IVia C. Kellogg & P Kellogg TTEE U/W Anne Kirkland Trust
Common Stock100,000IVia Acceptance Casualty
Common Stock225,000IVia Acceptance Indemnity
Common Stock630,000IVia Wilshire
Common Stock540,000IVia Transguard
Common Stock510,000IVia Occidental
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 Securities Underlying Derivative Security (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: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
/s/ Marguerite Gorman, attorney-in-fact05/15/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did Peter R. Kellogg report for MERC?

Peter R. Kellogg reported open-market purchases of Mercer International common stock through affiliated entities. Harco bought 200,000 shares at $0.8811 and 57,000 shares at $0.8773 per share, while E.G. Anderson Inc. bought 43,000 shares at $0.8412 per share.

How many Mercer International (MERC) shares were purchased in this Form 4?

The filing shows total open-market purchases of 300,000 Mercer International common shares. These consist of 200,000 and 57,000 shares bought indirectly via Harco and 43,000 shares bought indirectly via E.G. Anderson Inc., all reported as non-derivative transactions.

At what prices were the MERC shares bought in Kellogg’s latest filing?

Reported purchase prices were $0.8811 and $0.8773 per share for Harco’s buys and $0.8412 per share for E.G. Anderson Inc. These prices apply to non-derivative common stock purchased in open-market transactions disclosed in the Form 4.

Are Peter R. Kellogg’s MERC holdings direct or through entities?

Most reported Mercer International holdings are indirect, held through entities such as Harco, E.G. Anderson Inc., IAT Insurance Co. Ltd., Bermuda Partners, and various trusts and foundations. The filing also lists a direct holding of 965,929 common shares in Kellogg’s name.

How many MERC shares did Harco hold after the reported purchases?

After the reported open-market purchases, Harco held 1,257,000 Mercer International common shares indirectly for Peter R. Kellogg. This post-transaction figure reflects Harco’s updated position as disclosed in the non-derivative transaction entries of the Form 4.

What other large indirect MERC positions are reported for Peter R. Kellogg?

The filing shows several large indirect positions, including 13,475,000 shares via IAT Insurance Co. Ltd., 2,300,000 shares via Spouse, 2,000,000 shares via Bermuda Partners, 1,360,000 shares via Non Marital PRK Trust, and 1,000,000 shares via the Peter and Cynthia Kellogg Foundation.