secwatch.observer — SEC 8-K summary ====================================== Issuer: Tempest Therapeutics, Inc. (TPST) CIK: 0001544227 Form: 8-K Filed at: 2026-02-25T23:59:59+00:00 Accession: 0001193125-26-068614 Event type: other_material Sentiment: positive Materiality: 0.75 Item codes: 7.01, 8.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Tempest reports 100% CR rate in REDEEM-1 trial; plans U.S. registrational study in 2026 -------------------------------------------------------------------------------- - 100% complete response (CR) rate among all six efficacy-evaluable patients in REDEEM-1 trial of TPST-2003 in rrMM. - Favorable safety profile: no Grade ≥3 CRS or ICANS across dose levels in REDEEM-1. - Prior 24-patient IIT showed 89.5% CR rate and median progression-free survival of 23.1 months. - Tempest plans to submit U.S. IND and initiate registrational study of TPST-2003 in 2026, subject to clearance. - Company exploring TPST-2003 in LBCL; expects initial data from TPST-3003 and TPST-4003 programs later in 2026. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1544227/000119312526068614/0001193125-26-068614-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1544227/000119312526068614/d22967d8k.htm HTML page: https://secwatch.observer/filing/0001193125-26-068614 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer