Rainer Rettig - 02 Jun 2026 Form 4 Insider Report for MERCER INTERNATIONAL INC. (MERC)

Reporting relationship: Director
Issuer ticker: MERC
Reported as of: 02 Jun 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 02 Jun 2026, 20:30:59 UTC
Prior SEC filing: 03 Jun 2025
Source filing: View source filing
Reporting owner signature: /s/Rainer Rettig

Key filing fact

Rainer Rettig filed Form 4 for MERCER INTERNATIONAL INC. (MERC) on 02 Jun 2026.

Key facts

This page summarizes Rainer Rettig's Form 4 filing for MERCER INTERNATIONAL INC. (MERC).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 02 Jun 2026, 20:30.

Change

Previous filing in this sequence was filed on 03 Jun 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001804365 Primary reporting owner

Rettig Rainer

Relationship: Director
Address: SUITE 1120, 700 WEST PENDER STREET, VANCOUVER, BRITISH COLUMBIA, CANADA
Signature: /s/Rainer Rettig
Signature date: 02 Jun 2026

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

MERC transaction Derivative

Cash Settled Deferred Stock Units

Award

Transaction value
Shares: +25,000
Change %
Price
Shares after: 25,000
Date: 02 Jun 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 25,000
Exercise price
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

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.