BERLIN, June 11, 2021 (GLOBE NEWSWIRE) — atai Life Sciences B.V. (“atai”), a clinical-stage biopharmaceutical company aiming to transform the treatment of mental health disorders, today announced the commencement of a proposed underwritten initial public offering of 14,286,000 of its common shares. All common shares to be sold in the proposed offering will be sold by atai. The underwriters of the…