0001599298 FALSE 0001599298 2023-05-09 2023-05-09
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
Date of Report (Date of Earliest Event Reported): May 9, 2023

Summit Therapeutics Inc.
(Exact Name of Registrant as Specified in Its Charter)
Delaware | 001-36866 | 37-1979717
(State or Other Jurisdiction of Incorporation) | (Commission File Number) | (IRS Employer Identification No.)
2882 Sand Hill Road, Suite 106, Menlo Park, CA | 94025
(Address of Principal Executive Offices) | (Zip Code)

Registrant’s Telephone Number, Including Area Code: (650) 460-8308

Not applicable
(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 (see General Instruction A.2. below):
☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class | Trading Symbol(s) | Name of Each Exchange on Which Registered
Common stock, $0.01 par value per share | SMMT | The Nasdaq Stock Market LLC

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 8.01 | Other Events.

On May 9, 2023, Summit Therapeutics Inc. (the “Company”) issued a press release announcing that the first United States-based patient has been enrolled and treated in the Phase III HARMONi study. Further details of the study are included in the press release.
A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Item 9.01 | Financial Statements and Exhibits.

(d) Exhibits

Exhibit Number | Description
99.1 | Press Release, dated May 9, 2023
104 | Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE
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, hereunto duly authorized.

| SUMMIT THERAPEUTICS INC.
Date: May 9, 2023 | By: | /s/ Ankur Dhingra
|  | Chief Financial Officer
|  | (Principal Financial Officer)