Washington, D.C. 20549
Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934
Date of Report (Date of Earliest Event Reported): August 15, 2022
Summit Therapeutics Inc.
(Exact Name of Registrant as Specified in Its Charter)
Delaware 001-36866 37-1979717
(State or Other Jurisdiction
of Incorporation)
File Number)
(IRS Employer
Identification No.)
2882 Sand Hill Road, Suite 106, Menlo Park, CA
(Address of Principal Executive Offices) (Zip Code)
Registrant’s Telephone Number, Including Area Code: 617-514-7149
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 August 15, 2022, Summit Therapeutics Inc. (the “Company”) closed and completed its previously announced rights offering. In the offering, eligible stockholders subscribed to purchase 103,092,783 shares of the common stock, par value $0.01 per share (“Common Stock”), at a price of $0.97 per share. The price per share was the Alternate Price (as defined in the Prospectus Supplement (the “Prospectus Supplement”) filed by the Company in respect of the rights offering on July 18, 2022), determined, as provided in the Prospectus Supplement, as the volume weighted-average price of the Company’s Common Stock for the five-day trading period through and including the Expiration Date (as defined in the Prospectus Supplement) of August 8, 2022. The Company has received aggregate gross proceeds from the rights offering of $100 million, and incurred offering costs of approximately $0.1 million. After giving effect to the issuance of 103,092,783 shares of common stock in the rights offering, the Company has 201,215,139 shares of Common Stock issued and outstanding.

Item 9.01
Financial Statements and Exhibits.

(d) Exhibits

Exhibit Number
104 Cover Page Interactive Data File (embedded within the Inline XBRL document)


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.
Date: August 16, 2022 By: /s/ Ankur Dhingra
    Chief Financial Officer

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