SCHEDULE 13G/A

DoubleDown Interactive Co Ltd

American depositary shares, each representing 0.05 common share, par value W10,000 per share · CUSIP: 25862B109

Event date: 2025-12-31

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

• BRC Group Holdings, Inc.

  Shares: 173,872.00 · Class: 7.0%

• BRF Investments, LLC

  Shares: 169,538.40 · Class: 6.8%

• B. Riley Principal Investments, LLC

  Shares: 2,500.00 · Class: 0.1%

• B. Riley Securities, Inc.

  Shares: 1,833.60 · Class: 0.1%

• Bryant Riley

  Shares: 181,967.70 · Class: 7.3%

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