Statement of Changes in Beneficial Ownership (4)

FORM 4

[X] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

OMB APPROVAL

OMB Number:

3235-0287

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 * Gionco David	2. Issuer Name and Ticker or Trading Symbol STEMLINE THERAPEUTICS INC [ STML ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                    _____ 10% Owner __X__ Officer (give title below)    _____ Other (specify below) Chief Accounting Officer
(Last)          (First)          (Middle) C/O STEMLINE THERAPEUTICS, INC., 750 LEXINGTON AVENUE, ELEVENTH FLOOR	3. Date of Earliest Transaction (MM/DD/YYYY) 6/10/2020
(Street) NEW YORK, NY 10022 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	6/10/2020		A		45000 (1)	A	$0	327878	D
Common Stock	6/10/2020		U		327878	D	(2)	0	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (right to buy)	$4.12	6/10/2020		D			45102	(3)	2/24/2026	Common Stock	45102	(4)	0	D

Explanation of Responses:
(1)	Represents previously-granted performance-based awards that became vested under the agreement and plan of merger among Issuer, Berlin-Chemie AG, and Mercury Merger Sub, Inc., dated as of May 3, 2020 (the "Merger Agreement").
(2)	Disposed of in connection with a tender offer made pursuant to the Merger Agreement, in exchange for $11.50 per share, net to the holder in cash, plus one contractual contingent value right ("CVR") per share (collectively, the "Offer Price"). Each CVR represents the right to receive a payment of $1.00 in cash upon the achievement of a certain milestone relating to the first sale of ELZONRIS in any one of certain countries following a marketing authorization approval by the European Commission. The CVR milestone must be achieved on or prior to December 31, 2021.
(3)	All options were vested and exercisable as of the effective time of the merger.
(4)	Disposed of under the Merger Agreement in exchange for the excess of the Offer Price over the exercise price of the option.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Gionco David C/O STEMLINE THERAPEUTICS, INC. 750 LEXINGTON AVENUE, ELEVENTH FLOOR NEW YORK, NY 10022			Chief Accounting Officer

Signatures
/s/ David Gionco		6/10/2020
**Signature of Reporting Person		Date