Certain Common Stock of Zentalis Pharmaceuticals, Inc. are subject to a Lock-Up Agreement Ending on 14-SEP-2023. These Common Stock will be under lockup for 91 days starting from 15-JUN-2023 to 14-SEP-2023.

Details:
All directors and officers and certain stockholders have agreed that, without the prior written consent of Morgan Stanley & Co. LLC, Jefferies LLC and SVB Securities LLC on behalf of the underwriters, they will not, and will not publicly disclose an intention to, during the period ending 90 days after the date of this prospectus supplement.