X0206 3 2021-03-25 0 0000748592 Brooklyn ImmunoTherapeutics, Inc. BTX 0001448698 Cherington Charles C/O BROOKLYN IMMUNOTHERAPEUTICS, INC. 140 58TH STREET, BUILDING A, SUITE 2100 BROOKLYN NY 11220 true true Common Stock 6294101 D Series A Preferred Stock Common Stock 19196 D The reporting person holds 71,306 shares of Series A preferred stock, which are currently convertible into 19,196 shares of common stock. The reporting person has the right at any time to convert the shares of Series A preferred stock into that number of fully paid and nonassessable shares of common stock that equals the number of shares of Series A preferred stock that are surrendered for conversion divided by the conversion rate. The conversion rate was initially 100% and is subject to adjustment as provided in the Issuer's restated certificate of incorporation, as amended. The Series A preferred stock has no expiration date. Exhibit List: Exhibit 24 - Power of Attorney /s/ Mark L. Johnson, Attorney-in-Fact for Charles Cherington 2021-04-19