Form 8-K
8-K — Summit Therapeutics Inc.
Accession: 0001599298-26-000052
Filed: 2026-06-11
Period: 2026-06-10
CIK: 0001599298
SIC: 2834 (PHARMACEUTICAL PREPARATIONS)
Item: Regulation FD Disclosure
Documents
8-K — smmt-20260610.htm (Primary)
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8-K
8-K (Primary)
Filename: smmt-20260610.htm · Sequence: 1
smmt-20260610
0001599298FALSE00015992982026-06-102026-06-10
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): June 10, 2026
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.)
601 Brickell Key Drive, Suite 1000, Miami, FL
33131
(Address of Principal Executive Offices) (Zip Code)
Registrant’s Telephone Number, Including Area Code: (305) 203-2034
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 7.01
Other Events.
Summit Therapeutics Inc. (the “Company”) announced that effective June 10, 2026 it has withdrawn its previously announced proposed underwritten public offering of securities due to market conditions.
As a result of such termination, no securities will be sold pursuant to the proposed underwritten public offering. This Current Report on Form 8-K is not an offer to sell or a solicitation of an offer to buy any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction.
In accordance with General Instruction B.2 of Form 8-K, the information set forth under this Item 7.01 shall not be deemed “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.
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: June 11, 2026 By: /s/ Manmeet S. Soni
Chief Operating Officer, Chief Financial Officer and Director
(Principal Financial Officer)
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