EXPLANATORY NOTE
This Registration Statement on Form S-8 is filed by Viracta Therapeutics, Inc., a Delaware corporation (“Registrant”), for the purpose of registering (i) 3,199,999 shares of its common stock, $0.0001 par value (the “Common Stock”), reserved or that may become reserved for issuance to eligible employees, directors and consultants of Registrant and its affiliates under the Registrant’s 2021 Equity Incentive Plan (the “2021 Plan”), (ii) 2,151,303 shares of its Common Stock issuable under the Viracta Subsidiary, Inc. 2016 Equity Incentive Plan (the “Viracta Subsidiary Plan”), and (iii) 51,738 shares of its Common Stock issuable to eligible employees of Registrant and its affiliates under the Registrant’s 2011 Employee Stock Purchase Plan (the “ESPP”). Registrant’s Forms S-8 Registration Statements filed with the U.S. Securities and Exchange Commission (the “Commission”) on June 6, 2011 (File No. 333-174732), March 14, 2012 (File No. 333-180101), March 13, 2013 (File No. 333-187234), May 7, 2014 (File No. 333-195781), March 12, 2015 (File No. 333-202696), March 14, 2016 (File No. 333-210183), May 10, 2017 (File No. 333-217849), March 13, 2018 (File No. 333-223632), May 9, 2019 (File No. 333-231342), May 8, 2020 (File No. 333-238141) (the “Prior Forms S-8”) relating to the ESPP are each incorporated by reference herein.
On February 24, 2021, the Registrant (formerly known as “Sunesis Pharmaceuticals, Inc.”) completed its previously announced merger transaction in accordance with the terms and conditions of the Agreement and Plan of Merger and Reorganization, dated November 29, 2020 (the “Merger Agreement”), by and among the Registrant, Viracta Subsidiary, Inc. (formerly known as “Viracta Therapeutics, Inc.”) (“Viracta Subsidiary”) and Sol Merger Sub, Inc., a wholly-owned subsidiary of the Registrant (“Merger Sub”), pursuant to which Merger Sub merged with and into Viracta Subsidiary, with Viracta Subsidiary surviving the merger as a wholly-owned subsidiary of the Registrant (the “Merger”). In connection with the Merger, the Registrant assumed the Viracta Subsidiary Plan and all outstanding options granted pursuant to the Viracta Subsidiary Plan became exercisable for shares of Common Stock in accordance with the terms of the Viracta Subsidiary Plan.
PART II
INFORMATION REQUIRED IN REGISTRATION STATEMENT
Item 3. | Incorporation of Documents by Reference. |
The Registrant hereby incorporates by reference into this Registration Statement the following documents previously filed with the Commission:
(1) The Registrant’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020, filed with the Commission on February 24, 2021; which contains the Registrant’s audited financial statements for the latest fiscal year for which such statements have been filed;
(2) The Registrant’s Prospectus dated January 14, 2021, filed with the Commission on January 14, 2021 pursuant to Rule 424(b) under the Securities Act, relating to the Registration’s Registration Statement on Form S-4, as amended (File No. 333-251567), originally filed with the Commission on December 22, 2020 and declared effective on January 14, 2021;
(3) All other reports filed with the Commission pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), since the end of the fiscal year covered by the Registrant’s Annual Report referred to in (1) above, including the Registrant’s Current Report on Form 8-K/A filed with the Commission on March 23, 2021, in each case only to the extent that the items therein are specifically stated to be “filed” rather than “furnished” for the purposes of the Exchange Act; and
(4) The description of the Registrant’s capital stock contained in the Company’s Annual Report on Form 10-K filed with the Commission on February 24, 2021.
All documents filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act on or after the date of this Registration Statement and prior to the filing of a post-effective amendment to this Registration Statement that indicates that all securities offered have been sold or that deregisters all securities then remaining unsold shall be deemed to be incorporated by reference in this Registration Statement and to be part hereof from the date of filing of such documents; provided, however, that documents or information deemed to have been furnished and not filed in accordance with the rules of the Commission shall not be deemed incorporated by reference into this Registration Statement. Any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained herein or in any subsequently filed document which also is deemed to be incorporated by reference herein modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement.