secwatch.observer — SEC 8-K summary ====================================== Issuer: Kyverna Therapeutics, Inc. (KYTX) CIK: 0001994702 Form: 8-K Filed at: 2026-04-22T23:59:59+00:00 Accession: 0001193125-26-168287 Event type: other_material Sentiment: positive Materiality: 0.90 Item codes: 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Kyverna reports positive miv-cel Phase 2 data in gMG and registrational SPS trial -------------------------------------------------------------------------------- - KYSA-6 Phase 2/3 trial of miv-cel in generalized myasthenia gravis: positive longer-term follow-up from Phase 2 portion. - KYSA-8 registrational trial of miv-cel in stiff person syndrome achieved positive primary analysis results. - Conference call held April 22, 2026 to review both data sets; slides furnished as Exhibit 99.1. - Data presented at AAN 2026 annual meeting. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1994702/000119312526168287/0001193125-26-168287-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1994702/000119312526168287/d100817d8k.htm HTML page: https://secwatch.observer/filing/0001193125-26-168287 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer