Adage Capital Management's Schedule 13D Filing for 89bio, Inc.

Adage Capital Management, L.P. (ACM), along with Robert Atchinson and Phillip Gross, filed a Schedule 13D with the SEC regarding their ownership of 9,097,587 shares of common stock in 89bio, Inc., representing 6.13% of the outstanding shares. The shares were acquired for investment purposes, with a total expenditure of approximately $125,505,893. The filing indicates that ACM, Atchinson, and Gross have no present plans to influence the control or management of 89bio, Inc. but may engage in discussions with management or other shareholders regarding the company's business and strategy. The filing also discloses that ACM previously consented to an SEC order for late filings in 2020 and 2021, resulting in a $200,000 civil penalty.