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: 2025-04-02

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

• B. Riley Financial, Inc.

  Shares: 209,377.60 · Class: 8.5%

• BRF Investments, LLC

  Shares: 209,377.60 · Class: 8.5%

• B. Riley Securities, Inc.

  Shares: 1,833.60 · Class: 0.1%

• Bryant R. Riley

  Shares: 222,102.60 · Class: 9.0%

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