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 * Simon Barry J.	2. Date of Event Requiring Statement (MM/DD/YYYY) 3/3/2021	3. Issuer Name and Ticker or Trading Symbol Viracta Therapeutics, Inc. [VIRX]
(Last)        (First)        (Middle) C/O VIRACTA THERAPEUTICS, INC., 2533 S COAST HWY 101, SUITE 210	4. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director                          _____ 10% Owner _____ Officer (give title below)        _____ Other (specify below)
(Street) CARDIFF, CA 92007       (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 Option (Right to Buy)	(1)	12/15/2028	Common Stock	11190	$0.90	D

Explanation of Responses:

(1)

One forty-eighth (1/48th) of the Shares subject to the Option shall vest on the one (1) month anniversary of December 15, 2018 (the "Vesting Commencement Date"), and one forty-eighth (1/48th) of the Shares subject to the Option shall vest each month thereafter on the same day of the month as the Vesting Commencement Date (and if there is no corresponding day, on the last day of the month), subject to the reporting person continuing to be a Service Provider (as defined in the Viracta Subsidiary, Inc. 2016 Equity Incentive Plan) through each such date.

Remarks: Exhibit 24: Power of Attorney

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Simon Barry J. C/O VIRACTA THERAPEUTICS, INC. 2533 S COAST HWY 101, SUITE 210 CARDIFF, CA 92007	X

Signatures
/s/ Michael Mueller, as Attorney-in-Fact		3/4/2021
**Signature of Reporting Person		Date