How many MERC-related units does Eric Xavier Heine hold after this transaction?

After this transaction, Eric Xavier Heine holds 10,750 restricted stock units linked to Mercer common stock. This amount reflects the newly granted award and represents his reported derivative position in this filing.

Mercer International (MERC) VP awarded 10,750 restricted stock units

Q: How many restricted stock units were granted to Eric Xavier Heine at MERC?

Eric Xavier Heine was granted 10,750 restricted stock units . Each unit is linked to one Mercer common share or its cash value, providing equity-based compensation that aligns his interests with shareholders over the long term.

Q: When do Eric Xavier Heine’s MERC restricted stock units vest?

The restricted stock units vest on January 1, 2029 . Vesting requires Heine’s continued service with Mercer International Inc. through that date, meaning he must remain with the company for several years to receive the underlying value.

Q: Does this MERC Form 4 show an insider buying or selling shares in the market?

No, this filing shows a grant of restricted stock units , not an open-market trade. It is a compensation award with no purchase price, rather than a discretionary buy or sell of existing Mercer common stock on an exchange.

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Heine Eric Xavier reported acquisition or exercise transactions in this Form 4 filing.

Mercer International Inc. reported that VP of Sales, Marketing & Logistics Eric Xavier Heine received a grant of restricted stock units. He was awarded 10,750 restricted stock units, each representing a right to receive one share of Mercer common stock or, at the company’s election, the cash value of a share.

The restricted stock units vest on January 1, 2029, provided Heine continues his service with Mercer through that date. Following this award, he holds 10,750 RSUs linked to Mercer common stock. This is a compensation-related grant, not an open-market share purchase or sale.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Heine Eric Xavier

Role VP Sales, Marketing& Logistics

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	10,750	$0.00	--

Holdings After Transaction: Restricted Stock Units — 10,750 shares (Direct, null)

Footnotes (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. Not applicable.

Key Figures

RSUs granted: 10,750 units RSU-to-share ratio: 1 unit = 1 share Vesting date: January 1, 2029 +2 more

5 metrics

RSUs granted 10,750 units Restricted stock unit award to VP on transaction date

RSU-to-share ratio 1 unit = 1 share Each RSU represents a right to one common share

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

Post-transaction RSU holdings 10,750 units Total restricted stock units following the grant

Exercise/settlement price $0.00 RSUs granted with no purchase price

Key Terms

Restricted Stock Units, contingent right, vest, cash value

4 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 common stock"

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.

cash value financial

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

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Form 4 Insider Transactions: What Each Field Means →

06/05/2026 - 02:23 PM

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^*

Heine Eric Xavier

(Last)

(First)

(Middle)

SUITE 1120-700 WEST PENDER STREET

(Street)

VANCOUVER

BRITISH COLUMBIA

V6C 1G8

(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 Sales, Marketing& Logistics

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	⁽¹⁾	06/04/2026		A		10,750⁽¹⁾		⁽¹⁾	⁽²⁾	Common Stock	10,750	$0	10,750	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/Eric X. Heine	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)

Source: View Original Filing on SEC EDGAR

FAQ

What did MERCER INTERNATIONAL INC. (MERC) disclose in this Form 4?

The company disclosed that VP Eric Xavier Heine received a grant of 10,750 restricted stock units. These units represent future rights to Mercer common shares or equivalent cash value, subject to vesting conditions tied to continued service.

How many restricted stock units were granted to Eric Xavier Heine at MERC?

Eric Xavier Heine was granted 10,750 restricted stock units. Each unit is linked to one Mercer common share or its cash value, providing equity-based compensation that aligns his interests with shareholders over the long term.

When do Eric Xavier Heine’s MERC restricted stock units vest?

The restricted stock units vest on January 1, 2029. Vesting requires Heine’s continued service with Mercer International Inc. through that date, meaning he must remain with the company for several years to receive the underlying value.

Does this MERC Form 4 show an insider buying or selling shares in the market?

No, this filing shows a grant of restricted stock units, not an open-market trade. It is a compensation award with no purchase price, rather than a discretionary buy or sell of existing Mercer common stock on an exchange.

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

Each restricted stock unit represents a contingent right to receive one Mercer common share or its cash value. The company can choose to settle in stock or cash once the units vest, giving flexibility in how the award is delivered.