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 * Leavitt Chase C.	2. Date of Event Requiring Statement (MM/DD/YYYY) 5/25/2021	3. Issuer Name and Ticker or Trading Symbol Oncternal Therapeutics, Inc. [ONCT]
(Last)        (First)        (Middle) 12230 EL CAMINO REAL, SUITE 300	4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                          _____ 10% Owner ___X___ Officer (give title below)        _____ Other (specify below) General Counsel/Secretary /
(Street) SAN DIEGO, CA 92130       (City)              (State)              (Zip)	5. 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 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)

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
Stock Options	(1)	4/12/2031	Common Stock	235000	$6.76	D
Stock Options	(1)	4/29/2021	Common Stock	65000	$6.46	D

Explanation of Responses:
(1)	One quarter of the shares subject to the stock options shall vest on April 12, 2022, and the remaining shares subject to the option shall vest in 36 equal monthly installments over the three-year period thereafter, subject to the Reporting Person's continued employment or service with the Issuer on each such date.

Remarks: Exhibit 24 - Power of Attorney

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Leavitt Chase C. 12230 EL CAMINO REAL, SUITE 300 SAN DIEGO, CA 92130			General Counsel/Secretary

Signatures
/s/Chase C. Leavitt		5/27/2021
**Signature of Reporting Person		Date