MERC

SEC source: 0001104659-26-081771 · tm2620067-1_4seq1.xml · nonDerivative · entry 15

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,385,672

SEC source: 0001104659-26-081771 · tm2620067-1_4seq1.xml · nonDerivative · entry 14

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,371,641

SEC source: 0001104659-26-081771 · tm2620067-1_4seq1.xml · nonDerivative · entry 13

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,371,441

SEC source: 0001104659-26-081771 · tm2620067-1_4seq1.xml · nonDerivative · entry 12

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,370,231

SEC source: 0001104659-26-081771 · tm2620067-1_4seq1.xml · nonDerivative · entry 11

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,334,231

SEC source: 0001104659-26-081771 · tm2620067-1_4seq1.xml · nonDerivative · entry 10

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,198,231

SEC source: 0001104659-26-081771 · tm2620067-1_4seq1.xml · nonDerivative · entry 9

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,162,231

SEC source: 0001104659-26-081771 · tm2620067-1_4seq1.xml · nonDerivative · entry 8

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,138,594

SEC source: 0001104659-26-081771 · tm2620067-1_4seq1.xml · nonDerivative · entry 7

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,103,861

SEC source: 0001943969-26-000001 · primary_doc.xml · derivative · entry 1

Merforth Carsten · CIK 0001943969 · COO, Wood Products

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,764

Underlying: Common Stock · 26,764 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · shares: 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.

F1 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: Not applicable.

SEC source: 0001486247-26-000001 · primary_doc.xml · derivative · entry 1

STANNUS GENEVIEVE · CIK 0001486247 · VP, Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,583

Underlying: Common Stock · 8,583 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · shares: 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.

F1 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: Not applicable.

SEC source: 0001331804-26-000001 · primary_doc.xml · derivative · entry 1

Heine Eric Xavier · CIK 0001331804 · VP Sales, Marketing& Logistics

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,750

Underlying: Common Stock · 10,750 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · shares: 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.

F1 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: Not applicable.

SEC source: 0001967255-26-000001 · primary_doc.xml · derivative · entry 1

BECK WOLFGANG · CIK 0001967255 · Senior VP Global Wood Sourcing

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,967

Underlying: Common Stock · 12,967 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · shares: 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.

F1 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: Not applicable.

SEC source: 0001337324-26-000001 · primary_doc.xml · derivative · entry 1

Ridder Wolfram · CIK 0001337324 · Senior VP, Innovation & Gov.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,665

Underlying: Common Stock · 18,665 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · shares: 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.

F1 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: Not applicable.

SEC source: 0001507295-26-000001 · primary_doc.xml · derivative · entry 1

Short Richard George · CIK 0001507295 · CFO & Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,504

Underlying: Common Stock · 31,504 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · shares: 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.

F1 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: Not applicable.

SEC source: 0001918412-26-000001 · primary_doc.xml · derivative · entry 1

ARGUIN GUY · CIK 0001918412 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,612

Underlying: Common Stock · 13,612 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · shares: 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.

F1 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: Not applicable.

SEC source: 0001973975-26-000001 · primary_doc.xml · derivative · entry 1

ALEKSON CYNTHIA MARGARET · CIK 0001973975 · VP, Controller

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,188

Underlying: Common Stock · 7,188 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · shares: 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.

F1 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: Not applicable.

SEC source: 0001732127-26-000001 · primary_doc.xml · derivative · entry 1

Koppensteiner Adolf · CIK 0001732127 · COO, Pulp Products

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,505

Underlying: Common Stock · 30,505 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · shares: 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.

F1 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: Not applicable.

SEC source: 0001927186-26-000001 · primary_doc.xml · derivative · entry 1

BUENO ESTRADA JUAN CARLOS · CIK 0001927186 · Director · CEO & President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,808

Underlying: Common Stock · 126,808 shares

Expires not disclosed

F1 · derivative.exercise_price: 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.

F1 · shares: 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.

F1 · derivative.exercise_date: 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.

F2 · derivative.expiration_date: Not applicable.

SEC source: 0001104659-26-081771 · tm2620067-1_4seq1.xml · nonDerivative · entry 6

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,067,861

SEC source: 0001804365-26-000001 · primary_doc.xml · derivative · entry 1

Rettig Rainer · CIK 0001804365 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Common Stock · 25,000 shares

Expires not disclosed

F1 · security: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · derivative.exercise_price: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · kind: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · shares: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · price: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · derivative.exercise_date: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · derivative.expiration_date: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · derivative.underlying: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · derivative.underlying_shares: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

SEC source: 0001607859-26-000001 · primary_doc.xml · derivative · entry 1

CORRICK THOMAS KEVIN · CIK 0001607859 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,008

Underlying: Common Stock · 25,000 shares

Expires not disclosed

F1 · security: 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.

F1 · derivative.exercise_price: 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.

F1 · kind: 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.

F1 · shares: 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.

F1 · price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F1 · derivative.underlying: 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.

F1 · derivative.underlying_shares: 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.

SEC source: 0001411741-26-000001 · primary_doc.xml · derivative · entry 1

von Pentz Markwart · CIK 0001411741 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Common Stock · 25,000 shares

Expires not disclosed

F1 · security: 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.

F1 · derivative.exercise_price: 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.

F1 · kind: 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.

F1 · shares: 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.

F1 · price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F1 · derivative.underlying: 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.

F1 · derivative.underlying_shares: 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.

SEC source: 0001260893-26-000001 · primary_doc.xml · derivative · entry 1

MCCARTNEY WILLIAM · CIK 0001260893 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 106,156

Underlying: Common Stock · 41,250 shares

Expires not disclosed

F1 · security: 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 the Amended and Restated 2022 Stock Incentive Plan in connection with his role as a director and Chairperson of Mercer's board of directors and 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.

F1 · derivative.exercise_price: 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 the Amended and Restated 2022 Stock Incentive Plan in connection with his role as a director and Chairperson of Mercer's board of directors and 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.

F1 · kind: 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 the Amended and Restated 2022 Stock Incentive Plan in connection with his role as a director and Chairperson of Mercer's board of directors and 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.

F1 · shares: 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 the Amended and Restated 2022 Stock Incentive Plan in connection with his role as a director and Chairperson of Mercer's board of directors and 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.

F1 · price: 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 the Amended and Restated 2022 Stock Incentive Plan in connection with his role as a director and Chairperson of Mercer's board of directors and 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.

F1 · derivative.exercise_date: 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 the Amended and Restated 2022 Stock Incentive Plan in connection with his role as a director and Chairperson of Mercer's board of directors and 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.

F1 · derivative.expiration_date: 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 the Amended and Restated 2022 Stock Incentive Plan in connection with his role as a director and Chairperson of Mercer's board of directors and 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.

F1 · derivative.underlying: 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 the Amended and Restated 2022 Stock Incentive Plan in connection with his role as a director and Chairperson of Mercer's board of directors and 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.

F1 · derivative.underlying_shares: 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 the Amended and Restated 2022 Stock Incentive Plan in connection with his role as a director and Chairperson of Mercer's board of directors and 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.

SEC source: 0001205450-26-000001 · primary_doc.xml · derivative · entry 1

WELTY LINDA J · CIK 0001205450 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,181

Underlying: Common Stock · 25,000 shares

Expires not disclosed

F1 · security: 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.

F1 · derivative.exercise_price: 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.

F1 · kind: 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.

F1 · price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

F1 · derivative.underlying: 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.

F1 · derivative.underlying_shares: 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.

SEC source: 0001848169-26-000001 · primary_doc.xml · derivative · entry 1

North Janine · CIK 0001848169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,289.3

Underlying: Common Stock · 25,000 shares

Expires not disclosed

F1 · security: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · derivative.exercise_price: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · kind: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · shares: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · price: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · derivative.exercise_date: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · derivative.expiration_date: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · derivative.underlying: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · derivative.underlying_shares: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

SEC source: 0001522288-26-000001 · primary_doc.xml · nonDerivative · entry 1

Shepherd James · CIK 0001522288 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 133,471

F1 · shares: Represents a restricted stock award by Mercer International Inc. ("Mercer") to the Reporting Person under Mercer's non-employee director compensation program and the 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"). These shares vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

SEC source: 0001848174-26-000002 · primary_doc.xml · derivative · entry 1

Laberge Alice · CIK 0001848174 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,085

Underlying: Common Stock · 25,000 shares

Expires not disclosed

F1 · security: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · derivative.exercise_price: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · kind: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · price: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · derivative.exercise_date: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · derivative.expiration_date: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · derivative.underlying: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

F1 · derivative.underlying_shares: Represents cash settled deferred stock units ("DSUs") issued by Mercer International Inc. ("Mercer"), as a grant to the Reporting Person, at the election of the Reporting Person as an equity grant under Mercer's non-employee director compensation program 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 represents the right to receive a cash payment equal to the fair market value of one share of Mercer's common stock on the redemption date(s) and dividend equivalents after the Reporting Person ceases to be a director of Mercer, unless deferred in accordance with its terms. These DSUs vest on the earlier of the one-year anniversary of the grant date or the date of the 2027 AGM.

SEC source: 0001104659-26-081771 · tm2620067-1_4seq1.xml · nonDerivative · entry 5

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,031,861

SEC source: 0001104659-26-081771 · tm2620067-1_4seq1.xml · nonDerivative · entry 4

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,030,814

SEC source: 0001104659-26-081771 · tm2620067-1_4seq1.xml · nonDerivative · entry 3

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,020,660

SEC source: 0001104659-26-081771 · tm2620067-1_4seq1.xml · nonDerivative · entry 2

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,017,929

SEC source: 0001104659-26-081771 · tm2620067-1_4seq1.xml · nonDerivative · entry 1

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 981,929

SEC source: 0001104659-26-064322 · tm2615130-1_4seq1.xml · nonDerivative · entry 3

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Via Harco

Disclosed balance after: 1,957,000

SEC source: 0001104659-26-064322 · tm2615130-1_4seq1.xml · nonDerivative · entry 2

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Via Harco

Disclosed balance after: 1,852,000

SEC source: 0001104659-26-064322 · tm2615130-1_4seq1.xml · nonDerivative · entry 1

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Via Harco

Disclosed balance after: 1,472,000

SEC source: 0001104659-26-062855 · tm2614827-1_4seq1.xml · nonDerivative · entry 3

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Via Harco

Disclosed balance after: 1,257,000

SEC source: 0001104659-26-062855 · tm2614827-1_4seq1.xml · nonDerivative · entry 2

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Via Harco

Disclosed balance after: 1,057,000

SEC source: 0001104659-26-062855 · tm2614827-1_4seq1.xml · nonDerivative · entry 1

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Via E.G. Anderson Inc.

Disclosed balance after: 253,000

SEC source: 0001848174-26-000001 · primary_doc.xml · nonDerivative · entry 1

Laberge Alice · CIK 0001848174 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Registered Retirement Savings Plan

Disclosed balance after: 2,000

SEC source: 0001104659-25-119790 · tm2530391-1_4seq1.xml · nonDerivative · entry 28

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Via Harco

Disclosed balance after: 1,320,000

SEC source: 0001104659-25-119790 · tm2530391-1_4seq1.xml · nonDerivative · entry 27

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Via Harco

Disclosed balance after: 1,195,000

SEC source: 0001104659-25-119790 · tm2530391-1_4seq1.xml · nonDerivative · entry 29

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Via Harco

Disclosed balance after: 1,520,000

SEC source: 0001104659-25-119790 · tm2530391-1_4seq1.xml · nonDerivative · entry 26

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Via Harco

Disclosed balance after: 1,095,000

SEC source: 0001104659-25-119790 · tm2530391-1_4seq1.xml · nonDerivative · entry 25

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Via Harco

Disclosed balance after: 1,070,000

SEC source: 0001104659-25-119790 · tm2530391-1_4seq1.xml · nonDerivative · entry 23

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Via Non Marital PRK Trust

Disclosed balance after: 1,318,540

SEC source: 0001104659-25-119790 · tm2530391-1_4seq1.xml · nonDerivative · entry 22

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Via Non Marital PRK Trust

Disclosed balance after: 1,300,540

SEC source: 0001104659-25-119790 · tm2530391-1_4seq1.xml · nonDerivative · entry 21

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Via Non Marital PRK Trust

Disclosed balance after: 1,271,839

SEC source: 0001104659-25-119790 · tm2530391-1_4seq1.xml · nonDerivative · entry 20

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Via Non Marital PRK Trust

Disclosed balance after: 1,270,639

SEC source: 0001104659-25-119790 · tm2530391-1_4seq1.xml · nonDerivative · entry 19

KELLOGG PETER R · CIK 0000897485 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · Via Non Marital PRK Trust

Disclosed balance after: 1,264,540