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TPST 8-K: Material agreement

Filed with the SEC on · accession 0001213900-26-118986

TPST filed a 8-K (current report) with the SEC on Nov 12, 2026. Tempest Therapeutics exercised its option under its September 2026 collaboration and license agreement with Hebei Senlang Biotechnology to obtain an exclusive worldwide (excluding China) license to develop and commercialize Senlang's CD7-targeted lentiviral in vivo CAR-T platform and associated… The stock moved -3.5% by the first close after the filing.

Summary of the filing

Tempest Therapeutics exercised its option under its September 2026 collaboration and license agreement with Hebei Senlang Biotechnology to obtain an exclusive worldwide (excluding China) license to develop and commercialize Senlang's CD7-targeted lentiviral in vivo CAR-T platform and associated candidates, following initial Phase 1 results with its lead BCMA/GPRC5D candidate.

For details, click here →How to read a 8-K →

Key details

Licensee / reporting companyTempest Therapeutics, Inc.
Licensor / collaboration partnerHebei Senlang Biotechnology Co., Ltd.
President and chief executive officerMatthew Angel

How TPST stock reacted

Close before

$0.40

Nov 11, 2026

First close after

-3.53%

$0.38

5 trading days

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Since filing

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Frequently asked questions

What did TPST file with the SEC on Nov 12, 2026?

TPST filed a 8-K (Material agreement). Tempest Therapeutics exercised its option under its September 2026 collaboration and license agreement with Hebei Senlang Biotechnology to obtain an exclusive worldwide (excluding China) license to develop and commercialize Senlang's CD7-targeted lentiviral in vivo CAR-T platform and associated candidates, following initial Phase 1 results with its lead BCMA/GPRC5D candidate.

What does a material agreement mean for TPST stock?

A contract important enough that investors need to know about it — a big customer contract, a loan, a merger agreement or a partnership.

How do I read a 8-K?

A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more. The "Item" number tells you the topic (e.g. 2.02 results, 5.02 executive change, 1.01 new agreement, 1.03 bankruptcy). Exhibits (99.1 press release) usually hold the details.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 8-K (current report): A report of a major event, filed within four business days: results, deals, leadership changes, bankruptcy and more.

How did TPST stock react to this filing?

TPST closed at $0.40 before the filing and $0.38 on Nov 12, 2026 (-3.53%).

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