Form 6-K Filing by INTER & Co, INC.

This report details a significant equity sale notification received by INTER & Co, INC. from SQUADRA INVESTIMENTOS – GESTÃO DE RECURSOS LTDA. and SQUADRA INVESTMENTS – GESTÃO DE RECURSOS LTDA. The notification indicates that these entities now hold 31,924,236 securities, representing 9.80% of the Company's Class A Common Shares. According to the notification, this investment is not intended to alter the Company's control or management structure. This disclosure is made in compliance with Resolution CVM No. 44, Article 12, § 1, which requires shareholders to report transactions that increase or decrease their equity participation beyond certain thresholds. The filing also includes the attached letter from Squadra Investimentos detailing the share acquisition.