Mercer (MERC) director Linda Welty awarded 25,000 deferred stock units for 2026–2027 board term

Rhea-AI Filing Summary

WELTY LINDA J reported acquisition or exercise transactions in this Form 4 filing.

Mercer International Inc. director Linda J. Welty received a grant of 25,000 Deferred Stock Units (DSUs). These DSUs were issued under Mercer’s non-employee director compensation program and Amended and Restated 2022 Stock Incentive Plan for the board term starting June 1, 2026 and ending at the 2027 annual general meeting (AGM).

Each DSU represents the right to receive one share of Mercer common stock and related dividend equivalents after she ceases to be a director, unless further deferred. The DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM. Following this award, Welty directly holds 85,181 DSUs.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider WELTY LINDA J

Role null

Type	Security	Shares	Price	Value
Grant/Award	Deferred Stock Units	25,000	$0.00	--

Holdings After Transaction: Deferred Stock Units — 85,181 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Deferred Stock Units granted: 25,000 units DSUs after transaction: 85,181 units Board term covered: June 1, 2026–2027 AGM +2 more

5 metrics

Deferred Stock Units granted 25,000 units Grant to director for board term commencing June 1, 2026

DSUs after transaction 85,181 units Total Deferred Stock Units directly held following grant

Board term covered June 1, 2026–2027 AGM Service period to which the DSU grant relates

Vesting trigger Earlier of 1 year or 2027 AGM Vesting schedule for the 25,000 DSUs

Underlying common shares 25,000 shares Each DSU corresponds to one Mercer common share

Key Terms

Deferred Stock Units, non-employee director compensation program, Amended and Restated 2022 Stock Incentive Plan, annual general meeting, +1 more

5 terms

Deferred Stock Units financial

"Represents deferred stock units ("DSUs") issued by Mercer International Inc."

Deferred stock units are promises from a company to give an employee shares of stock at a future date, often after certain conditions are met or after leaving the company. They function like a form of delayed compensation, allowing employees to earn shares over time. For investors, they represent potential future ownership in the company, but do not provide immediate voting rights or dividends until the shares are actually received.

non-employee director compensation program financial

"as a grant to the Reporting Person under Mercer's non-employee director compensation program"

Amended and Restated 2022 Stock Incentive Plan financial

"under Mercer's ... Amended and Restated 2022 Stock Incentive Plan"

annual general meeting financial

"ending at its next regularly scheduled annual general meeting in 2027"

dividend equivalents financial

"represents the right to receive one share of Mercer's common stock and dividend equivalents"

Payments tied to employee or contractor equity awards that mirror the cash dividends paid on the company’s stock; they give the holder the same economic benefit as owning the shares without transferring actual shares—often paid in cash or additional award units when the award becomes payable. Investors care because these payments affect a company’s compensation costs, cash flow and potential share dilution, and they signal how management is being rewarded and aligned with shareholders.

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Form 4 Insider Transactions: What Each Field Means →

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 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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/02/2026

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
Deferred Stock Units(1)	(1)	06/02/2026		A(1)		25,000		(1)	(1)	Common Stock(1)	25,000(1)	(1)	85,181	D

Explanation of Responses:

1. Represents deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer) as a grant to the Reporting Person under Mercer's non-employee director compensation program and Amended and Restated 2022 Stock Incentive Plan in respect of the board term commencing June 1, 2026 and ending at its next regularly scheduled annual general meeting in 2027 (the "2027 AGM"). Each DSU vests on the earlier of the one year anniversary of the grant date or the date of the 2027 AGM and represents the right to receive one share of Mercer's common stock and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms.

	/s/Linda J. Welty	06/02/2026
	** 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)

FAQ

What insider transaction did MERC director Linda Welty report on this Form 4?

Linda J. Welty reported receiving 25,000 Deferred Stock Units from Mercer International Inc. The grant relates to her non-employee director compensation for the board term beginning June 1, 2026 and ending at the 2027 annual general meeting.

How many Mercer (MERC) Deferred Stock Units does Linda Welty hold after this grant?

After the 25,000-unit grant, Linda J. Welty holds 85,181 Deferred Stock Units. These DSUs are derivative interests that each correspond to one share of Mercer International common stock, subject to the plan’s vesting and settlement conditions.

When do Linda Welty’s newly granted MERC Deferred Stock Units vest?

The 25,000 Deferred Stock Units vest on the earlier of one year from the grant date or the date of Mercer’s 2027 annual general meeting. This schedule aligns vesting with her non-employee director board service term under the company’s compensation program.

What does each Deferred Stock Unit represent for Mercer (MERC) director compensation?

Each Deferred Stock Unit represents the right to receive one share of Mercer International common stock plus dividend equivalents. Payment occurs after the director ceases to serve on the board, unless the director further defers settlement according to the plan’s terms.

Under which plan were Linda Welty’s MERC Deferred Stock Units granted?

The 25,000 Deferred Stock Units were granted under Mercer International’s non-employee director compensation program and its Amended and Restated 2022 Stock Incentive Plan. This plan governs the terms, vesting, and settlement features for director equity-based awards.