Mercer International VP awarded 8,583 RSUs

STANNUS GENEVIEVE reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

STANNUS GENEVIEVE reported acquisition or exercise transactions in this Form 4 filing.

Mercer International Inc. reported that its VP and Treasurer, Genevieve Stannus, received a grant of 8,583 restricted stock units. Each unit represents a contingent right to receive one share of Mercer common stock or, at the company’s election, the cash value of a share.

The 8,583 restricted stock units vest on January 1, 2029, provided she continues serving the company through that date. Following this grant, she holds 8,583 restricted stock units directly, giving her potential future equity exposure tied to Mercer’s share performance once the units vest.

Insider Trade Summary

Grant/Award: 8,583 shares

Grant/Award 1 txn

Insider STANNUS GENEVIEVE

Role VP, Treasurer

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	8,583	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 8,583 contracts (Direct)

Footnotes (2)

1. F1. Each restricted stock unit represents a contingent right to receive one share of Mercer International Inc. ("Mercer") common stock, or, at the company's election, the cash value thereof. The restricted stock units vest on January 1, 2029 subject to the Reporting Person's continued service to Mercer.
2. F2. Not applicable.

Key Figures

RSUs granted: 8,583 units Post-grant RSU holdings: 8,583 units Vesting date: January 1, 2029 +2 more

5 metrics

RSUs granted 8,583 units Restricted stock units granted to VP, Treasurer on June 4, 2026

Post-grant RSU holdings 8,583 units Total restricted stock units held directly after the transaction

Vesting date January 1, 2029 RSUs vest subject to continued service to Mercer

Underlying common stock 8,583 shares Each RSU corresponds to one share of common stock or cash value

Grant price $0.0000 per unit Indicates compensation award, not an open-market purchase

Key Terms

Restricted Stock Units, contingent right, cash value thereof, vest, +1 more

5 terms

Restricted Stock Units financial

"Each restricted stock unit represents a contingent right to receive one share"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

contingent right financial

"represents a contingent right to receive one share of Mercer International Inc. common stock"

cash value thereof financial

"or, at the company's election, the cash value thereof"

vest financial

"The restricted stock units vest on January 1, 2029 subject to the Reporting Person's continued service"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

derivative financial

"transaction_type: derivative for the restricted stock unit award"

A derivative is a financial contract whose value depends on the price or performance of another asset or measure — for example a stock, index, interest rate, commodity, or currency. Investors use derivatives like insurance or leveraged bets to hedge risk, speculate, or gain exposure without owning the underlying asset; they can protect portfolios but also amplify losses and introduce counterparty and market risk.

FAQ

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

What did Mercer International (MERC) disclose in this Form 4 filing?

Mercer International disclosed that VP and Treasurer Genevieve Stannus received 8,583 restricted stock units. These units are a form of equity-based compensation that may convert into Mercer common shares or equivalent cash value if vesting conditions are satisfied.

How many restricted stock units did MERC grant to Genevieve Stannus?

Mercer International granted 8,583 restricted stock units to VP and Treasurer Genevieve Stannus. Each unit is tied to one Mercer common share or its cash value, giving her potential future ownership if the award ultimately vests as scheduled.

When do Genevieve Stannus’s MERC restricted stock units vest?

The 8,583 restricted stock units vest on January 1, 2029. Vesting is contingent on her continued service with Mercer International through that date, making this award a long-term incentive aligned with extended employment at the company.

What does each restricted stock unit represent for MERC’s VP, Treasurer?

Each restricted stock unit represents a contingent right to receive one Mercer International common share or, at the company’s election, the cash value of that share. Actual delivery occurs only if vesting conditions are met on the stated vesting date.

Does this MERC Form 4 show any stock sales by Genevieve Stannus?

The Form 4 shows only an acquisition of 8,583 restricted stock units as a grant or award. There are no reported sales or dispositions of Mercer securities in this filing, and her post-transaction holdings reflect these newly awarded restricted units.

How many MERC restricted stock units does Genevieve Stannus hold after this grant?

After the grant, Genevieve Stannus holds 8,583 restricted stock units directly. This figure matches the number of units awarded, indicating her reported derivative position consists entirely of this long-term, service-based equity incentive in Mercer International.

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

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Accepted by SEC EDGAR 06/05/2026 - 02:32 PM EDT Learn about SEC filing dates

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^*

STANNUS GENEVIEVE

(Last) (First) (Middle)

SUITE 1120, 700 WEST PENDER STREET

(Street)

VANCOUVER BRITISH COLUMBIA V6C1G8

(City) (State) (Zip)

BRITISH COLUMBIA, CANADA

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/04/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form 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)
			Code	V	Amount	(A) or (D)	Price

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
Restricted Stock Units	(1)	06/04/2026		A		8,583(1)		(1)	(2)	Common Stock	8,583	$0	8,583	D

Explanation of Responses:

1. Each restricted stock unit represents a contingent right to receive one share of Mercer International Inc. ("Mercer") common stock, or, at the company's election, the cash value thereof. The restricted stock units vest on January 1, 2029 subject to the Reporting Person's continued service to Mercer.

2. Not applicable.

	/s/Genevieve Stannus	06/05/2026
	** 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.
* Form 4: SEC 1474 (03-26)