X0306 4 2018-07-02 0 0001720893 BioXcel Therapeutics, Inc. BTAI 0001256126 MUELLER PETER C/O BIOXCEL THERAPEUTICS, INC., 555 LONG WHARF DRIVE NEW HAVEN CT 06511 1 0 0 0 Common Stock 2018-07-02 4 G 0 90000 0 D 119795 D Common Stock 2018-07-02 4 G 0 90000 0 A 90000 I By Family Trust Number of shares held following the reported transaction reflects 41,475 shares of common stock that were inadvertently omitted from the reporting person's Form 3 filed on March 7, 2018. Shares are held by the Peter Mueller 2018 Irrevocable Family Trust for the benefit of the reporting person's children. The reporting person's spouse is trustee of the trust. /s/ Peter Mueller 2020-02-14