Current Report · Items 2.02, 9.01 · 8-K

Tempest Therapeutics, Inc.

TPSTNASDAQEQUITYCurrent

Results of Operations and Financial Condition

Filed Aug 13, 2026Accepted Aug 13, 2026, 4:36 PM EDTCIK 1544227Accession 0001193125-26-349374

Company context

We are a clinical-stage biotechnology company advancing a pipeline of advanced chimeric antigen receptor T-cell (“CAR-T”) product candidates, including our lead program, TPST-4003, a dual-targeting CD19/B-cell maturation antigen (“BCMA”) in vivo CAR-T product candidate, which we are developing for indications in immunology and oncology. In February 2026, we expanded our pipeline through a strategic transaction under which we acquired rights to a dual-targeting CAR-T platform, which included product candidates with the potential to treat certain blood cancers, solid tumors and immunology indications, including TPST-2003, an autologous CD19/BCMA CAR-T therapy currently in clinical development for relapsed or refractory multiple myeloma and the rare disease, POEMS syndrome.

Current securities

TPSTNASDAQ · EQUITY · Current

Recent company filings

Disclosure sections

Items 2.02, 9.01

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Item 2.02Item 2.02 - Results of Operations

Item 2.02 Results of Operations and Financial Condition. On [August 13], 2026, Tempest Therapeutics, Inc. (the “Company”) issued a press release announcing its financial results for the quarter ended June 30, 2026 and other business highlights. A copy of the Company’s press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. The foregoing information (including Exhibit 99.1 hereto) is being furnished under “Item 2.02 Results of Operations and Financial Condition” and shall not be deemed “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, 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.

Filed exhibits (1)

EX-99.1 (by filename) tpst-ex99_1.htm

EX-99.1 2 tpst-ex99_1.htm EX-99.1 EX-99.1 Exhibit 99.1 Tempest Reports Second Quarter 2026 Financial Results and Provides Business Update Executed a development collaboration with Senlang Biotechnology to advance certain in vivo CAR-T product candidates, including TPST-4003, a CD7-targeted next-generation in vivo CAR-T, with first patient dosing anticipated in the fourth quarter of 2026 and initial clinical data expected in the first half of 2027 Unveiled pipeline of next-generation in vivo CAR-T product candidates for oncology and immunology applications differentiated by CD-7 targeted mRNA/LNP delivery approach Appointed Drake Richey and John Yee, MD, MPH, to Board of Directors Brisbane, CA, August 13, 2026 - Tempest Therapeutics, Inc. (Nasdaq: TPST) (“Tempest”), a clinical-stage biotechnology company developing a pipeline of advanced chimeric antigen receptor T-cell (“CAR-T”) product candidates, today reported financial results for the quarter ended June 30, 2026, and provided a business update. “We continue to execute against our strategy by advancing our next-generation in vivo CAR-T platform, expanding our expertise with the appointment of two new board members an…

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