Aesther Healthcare Acquisition Corp. (AEHAU) is a blank check company, or special purpose acquisition company (SPAC), formed to effect a merger, capital stock exchange, asset acquisition, stock purchase, reorganization, or similar business combination with one or more businesses primarily in the pharmaceutical and medical devices sectors; it does not have significant operations of its own other than pursuing such a transaction. Incorporated in 2021 and headquartered at 515 Madison Avenue, Suite 8078, New York, New York, the company raised approximately $100 million in its initial public offering in 2021 by offering units comprising shares of Class A common stock and warrants. In its most significant development, Aesther completed a reverse merger with Ocean Biomedical, Inc. on February 14, 2023, pursuant to which Ocean Biomedical became a wholly owned subsidiary, Aesther changed its name to Ocean Biomedical, Inc., and its common stock and warrants began trading on Nasdaq under the symbols OCEA and OCEAW, respectively; the pro forma enterprise value of the combined entity was approximately $345 million prior to substantial shareholder redemptions, with the transaction supported by backstop agreements totaling up to $80 million from Vellar Opportunity Fund SPV LLC - Series 3 and Meteora entities, as well as a $75 million common stock purchase agreement with White Lion Capital. Ocean Biomedical, now the operating entity, focuses on next-generation biopharmaceutical therapies targeting oncology, fibrosis, and infectious diseases including non-small cell lung cancer, glioblastoma, pulmonary fibrosis, and malaria, leveraging a proprietary discovery platform validated by over $123.9 million in grants and sponsored research at institutions such as Brown University. The SPAC's geographic operations were centered in the United States, with post-merger activities led from Providence, Rhode Island.