UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM
CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
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Item 8.01. Other Events.
On December 2, 2025, Jasper Therapeutics, Inc. (the “Company”) issued a press release reporting positive preliminary clinical data from the Company’s ETESIAN Phase 1b study of subcutaneous briquilimab in adult participants with allergic asthma and the completion of its internal investigation into the anomalous lack of clinical response observed in the July 2025 BEACON data for cohort 8 (240mg Q8W) and cohort 9 (240mg /180mg Q8W) and disclosing that the Company will hold a conference call and webinar at 8:00 am Eastern Time on December 2, 2025 to present findings from its investigation into the anomalous results from the BEACON study in CSU reported in July, as well as the preliminary data from the ETESIAN study in asthma.
A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference. A copy of the presentation to be used in connection with the conference call and webinar on December 2, 2025 is attached as Exhibit 99.2 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01. Financial Statements and Exhibits.
(d) Exhibits.
| Exhibit No. | Description | |
| 99.1 | Press Release, dated December 2, 2025. | |
| 99.2 | Presentation – Jasper Therapeutics: ETESIAN Data + Beacon Investigation Update, December 2025. | |
| 104 | Cover Page Interactive Data File, formatted in Inline Extensible Business Reporting Language (iXBRL). |
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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.
| Date: December 2, 2025 | JASPER THERAPEUTICS, INC. | ||
| By: | /s/ Herb Cross | ||
| Name: | Herb Cross | ||
| Title: | Chief Financial Officer | ||
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