[Form 4] Mercer International Inc Insider Trading Activity

Rhea-AI Filing Summary

Linda J. Welty, a director of Mercer International Inc. (MERC), reported purchasing 10,000 shares of the company's common stock on 08/18/2025 at a price of $3.0866 per share. After the transaction she beneficially owned 36,290 shares, held directly. The Form 4 shows no derivative transactions and is signed by the reporting person.

Positive

• Director purchase: A company director acquired 10,000 common shares, which can indicate insider confidence.
• Clear disclosure: The Form 4 reports the transaction, ownership amount (36,290 shares), and is signed by the reporting person.

Negative

• None.

Insights

Corporate Governance Expert

TL;DR: A director made a direct common-stock purchase, modestly increasing personal ownership, with no derivatives reported.

The Form 4 discloses a straightforward open-market purchase of 10,000 common shares at $3.0866 each by a company director, increasing direct beneficial ownership to 36,290 shares. The filing contains no derivatives, no joint filings, and no indications of transactions under a Rule 10b5-1 plan. From a governance perspective, an insider buy can signal confidence in the issuer, but the filing lacks context on proportionate ownership or intent. The disclosure appears complete and properly executed.

Securities Analyst

TL;DR: Transaction is a routine Section 16 disclosure of an insider purchase; impact on capitalization is immaterial based on available data.

The report documents a single non-derivative acquisition of 10,000 shares by a director at $3.0866, raising direct holdings to 36,290 shares. There are no additional material details such as linked sales, derivative exercises, or plan-based trades. Given only the numbers in the Form 4, the transaction is a standard insider disclosure and does not on its face represent a material change to share count or control.

SEC Form 4

FORM 4

UNITED 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^*

WELTY LINDA J

(Last) (First) (Middle)

SUITE 1120

700 WEST PENDER STREET

(Street)

VANCOUVER A1 V6C 1G8

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
MERCER INTERNATIONAL INC. [ MERC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
08/18/2025

4. If Amendment, Date of 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

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 Stock	08/18/2025		P		10,000	A	$3.0866	36,290	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Linda J. Welty	08/18/2025
	** Signature of Reporting Person	Date
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.

FAQ

What did MERC director Linda J. Welty purchase on 08/18/2025?

She purchased 10,000 shares of Mercer International Inc. (MERC) common stock at a price of $3.0866 per share on 08/18/2025.

How many MERC shares does Linda J. Welty beneficially own after the transaction?

Following the reported purchase, she beneficially owned 36,290 shares, held directly.

Were any derivative securities reported in this Form 4 for MERC?

No. The filing shows no derivative securities acquired, disposed of, or beneficially owned.

Is the Form 4 filed jointly or by one reporting person for MERC?

The Form 4 was filed by one reporting person (Linda J. Welty) as indicated on the form.

Was the transaction part of a Rule 10b5-1 plan or similar arrangement?

The Form 4 does not indicate that the transaction was made pursuant to a Rule 10b5-1 plan; no such plan is disclosed in the provided content.