Summary by Moomoo AI
Duolingo, Inc., known for its language learning platform, has filed definitive additional materials with the United States Securities and Exchange Commission (SEC) as part of its proxy statement schedule. This filing, pursuant to Section 14(a) of the Securities Exchange Act of 1934, indicates that the materials are intended for use in upcoming shareholder meetings and are not preliminary or confidential in nature. The company has confirmed that no filing fee was required for this submission.