X0206 3 2021-03-25 0 0000748592 Brooklyn ImmunoTherapeutics, Inc. BTX 0001234950 HALPERN JOHN D PO BOX 540 PORTSMOUTH NH 03802 0 0 1 0 0001862932 Halpern Katherine H. PO BOX 540 PORTSMOUTH NH 03802 0 0 1 0 Common Stock 4094 D Common Stock 2300828 I As trustee of family trust Common Stock 30192 I By LLC with independent manager Common Stock 2870 I By trust with independent trustee Common Stock 2442323 I By LLC with family member manager Held by John D. Halpern The reporting persons disclaim beneficial ownership of these shares except to the extent of their pecuniary interest therein, if any. /s/ John D. Halpern 2021-05-18 /s/ Katherine H. Halpern 2021-05-18