Balyasny Asset Management L.P. Reports New 7.12% Stake in Rallybio Corp (RLYB)

On May 15, 2026, Balyasny Asset Management L.P. (BAM) and its affiliates filed a Schedule 13G regarding their holdings in Rallybio Corp (RLYB). The filing indicates that the reporting persons collectively beneficially own 376,573 shares of common stock, representing a 7.12% ownership stake in the company. This position is held directly by Atlas Diversified Master Fund, Ltd. (ADMF), for which BAM serves as the investment manager. The reporting group includes BAM, BAM GP LLC, Balyasny Asset Management Holdings LP, Dames GP LLC, and Dmitry Balyasny. Each entity and Mr. Balyasny may be deemed to share voting and dispositive power over the reported shares due to their hierarchical control structure. The filing reflects an increase from a previous 0% position, establishing a significant new minority stake. The shares were acquired in the ordinary course of business and not for the purpose of influencing or changing control of the issuer. The ownership percentage is based on 5,289,675 shares of common stock outstanding as of March 6, 2026.