Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * HALPERN JOHN D	2. Date of Event Requiring Statement (MM/DD/YYYY) 3/25/2021	3. Issuer Name and Ticker or Trading Symbol Brooklyn ImmunoTherapeutics, Inc. [BTX]
(Last)        (First)        (Middle) PO BOX 540	4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                          ___X___ 10% Owner _____ Officer (give title below)        _____ Other (specify below)
(Street) PORTSMOUTH, NH 03802       (City)              (State)              (Zip)	5. If Amendment, Date Original Filed(MM/DD/YYYY)	6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	4094	D (1)
Common Stock	2300828	I (2)	As trustee of family trust
Common Stock	30192	I (2)	By LLC with independent manager
Common Stock	2870	I (2)	By trust with independent trustee
Common Stock	2442323	I (2)	By LLC with family member manager

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:
(1)	Held by John D. Halpern
(2)	The reporting persons disclaim beneficial ownership of these shares except to the extent of their pecuniary interest therein, if any.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
HALPERN JOHN D PO BOX 540 PORTSMOUTH, NH 03802		X
Halpern Katherine H. PO BOX 540 PORTSMOUTH, NH 03802		X

Signatures
/s/ John D. Halpern		5/18/2021
**Signature of Reporting Person		Date
/s/ Katherine H. Halpern		5/18/2021
**Signature of Reporting Person		Date