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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): September 14, 2026

 

 

Tempest Therapeutics, Inc.

(Exact name of Registrant as Specified in Its Charter)

 

 

 

Delaware   001-35890   45-1472564
(State or Other Jurisdiction
of Incorporation)
 

(Commission

File Number)

  (IRS Employer
Identification No.)

 

2000 Sierra Point Parkway, Suite 400  
Brisbane, California   94005
(Address of Principal Executive Offices)   (Zip Code)

Registrant’s Telephone Number, Including Area Code: (415) 798-8589

 

(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:

 

☐

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, $0.001 par value   TPST   The Nasdaq Stock Market LLC
Series A Junior Participating Preferred Purchase Rights   N/A   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 1.01

Entry into a Material Definitive Agreement.

On September 14, 2026, Tempest Therapeutics, Inc. entered into an exclusive collaboration, option and license agreement with Heibei Senlang Biotechnology Co., Ltd., a PRC company, under which Senlang granted the Company an exclusive option, exercisable within four months, to obtain an exclusive, royalty-bearing, sublicensable license to develop and commercialize Senlang’s in vivo CAR-T technology worldwide excluding Greater China. If exercised (upon payment of an option exercise fee of approximately $447,000), the license would require the Company to pay a nomination fee for each Selected Licensed Product, annual maintenance fees escalating from $10 million to $14 million over the first three years (which the Company may elect to stop paying, with corresponding reductions to development timelines), a 6% royalty on net sales, and a share of any sublicense revenue, while committing the Company to use commercially reasonable efforts to develop and commercialize at least one Licensed Product and to meet specified IND-filing or business-development milestones. The agreement also grants each party a right of first negotiation for Greater China rights and includes customary termination provisions for material breach, bankruptcy, patent challenges by the Company, or termination for convenience by the Company on 90 days’ notice.

The foregoing description is only a summary and is qualified in its entirety by reference to the full text of the agreement, a copy of which is filed as Exhibit 10.1 to this Current Report on Form 8-K and incorporated by reference herein.

 

Item 7.01

Regulation FD Disclosure.

On September 15, 2026, the Company issued a press release with respect to the matters described in Item 1.01 of this Current Report on Form 8-K, a copy of which is furnished as Exhibit 99.1 to this Current Report on Form 8-K and incorporated by reference in this Item 7.01.

The information contained in Item 7.01 of this Current Report on Form 8-K, including Exhibit 99.1 attached hereto, is “furnished” and not “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. Such information shall not be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, except to the extent such other filing specifically incorporates such information by reference.

 

Item 9.01

Financial Statements and Exhibits

(d) Exhibits

 

10.1    Exclusive Collaboration, Option and License Agreement, dated September 14, 2026, by and between Tempest Therapeutics, Inc. and Heibei Senlang Biotechnology Co., Ltd.
99.1    Press Release, dated September 15, 2026
104    Cover Page Interactive Data File (formatted in Inline XBRL)

 


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 hereunto duly authorized.

 

      TEMPEST THERAPEUTICS, INC.
Date: September 17, 2026     By:  

/s/ Matthew Angel

    Name:   Matthew Angel
    Title:   President and Chief Executive Officer