SCHEDULE 13G

MERCER INTERNATIONAL INC

Common Stock, par value $1.00 per share · CUSIP: 588056101

Event date: 2025-06-30

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• REDWOOD CAPITAL MANAGEMENT LLC

  Shares: 3,368,840.00 · Class: 5.0%

• Redwood Capital Management Holdings, LP

  Shares: 3,368,840.00 · Class: 5.0%

• Double Twins K, LLC

  Shares: 3,368,840.00 · Class: 5.0%

• Ruben Kliksberg

  Shares: 3,368,840.00 · Class: 5.0%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.