Boston Partners Reports New 5.4% Passive Stake in DoubleDown Interactive (DDI)

Boston Partners filed a Schedule 13G on May 14, 2026, disclosing a new 5.4% ownership stake in DoubleDown Interactive Co., Ltd. (DDI). As of the event date on March 31, 2026, the investment firm reported beneficial ownership of 133,719 American Depository Shares (ADS). According to the filing, each ADS represents 0.05 common shares (a 20:1 ratio), meaning the holding equates to approximately 6,685.95 common shares. Boston Partners exercises sole voting and dispositive power over the entire reported amount of 133,719 shares. The firm, a Delaware-based investment adviser, certified that the securities were acquired in the ordinary course of business and not for the purpose of influencing or changing the control of the issuer. This filing marks a significant increase from a previous ownership level of 0.0%, establishing Boston Partners as a major institutional shareholder in the South Korean-based interactive entertainment company.