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

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

VIRACTA THERAPEUTICS, INC.

(Exact name of Registrant as Specified in Its Charter)

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 1.01 Entry into a Material Definitive Agreement.

On August 26, 2022, Viracta Therapeutics, Inc. (the “Company”) and Silicon Valley Bank (“SVB”) entered into a First Amendment (the “First Amendment”) to that certain Loan and Security Agreement dated as of November 4, 2021 (the “Loan Agreement”). The First Amendment amends the period for the Company to draw down the second tranche of $20.0 million under the Loan Agreement to the period commencing on October 1, 2022, and ending on the earlier to occur of (i) December 30, 2022, and (ii) the occurrence of an event of default under the Loan Agreement, as amended.

The foregoing description of the First Amendment is not complete and is qualified in its entirety by reference to the full text of the First Amendment, a copy of which is filed herewith as Exhibit 10.1 to this Current Report on Form 8-K and is incorporated herein by reference.

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On August 23, 2022, Michael Huang notified the Company of his resignation as a member of the Board of Directors (the “Board”) of the Company and from all committees of the Board on which he served, effective as of August 23, 2022. Mr. Huang's resignation is not the result of any disagreement with the Company relating to the Company's operations, policies or practices.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.