X0306 4 2021-12-08 0000748592 Brooklyn ImmunoTherapeutics, Inc. BTX 0001448698 Cherington Charles C/O BROOKLYN IMMUNOTHERAPEUTICS, INC. 140 58TH STREET, BUILDING A, SUITE 2100 BROOKLYN NY 11220 true Common Stock 2021-06-01 5 J 0 92 0 A 5894193 D Stock Option 5.94 2021-12-08 4 A 0 67000 0 A 2031-12-07 Common Stock 67000 67000 D Represents a stock dividend declared on shares of the Issuer's Series A Preferred Stock. A total of 22,336 of the shares subject to the option vest and become exercisable as of 12:01 a.m. Eastern time on the date of the issuer's 2022 Annual Meeting of Stockholders and the remaining 44,664 shares vest and become exercisable in equal monthly installments over the following 24 months, subject to continued service through each vesting date. /s/ Mark L. Johnson, Attorney-in-Fact for Charles Cherington 2021-12-10