secwatch.observer — SEC 8-K summary ====================================== Issuer: Neurogene Inc. (NGNE) CIK: 0001404644 Form: 8-K Filed at: 2026-02-26T23:59:59+00:00 Accession: 0001404644-26-000006 Event type: regulatory Sentiment: positive Materiality: 0.85 Item codes: 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Neurogene's NGN-401 receives FDA Breakthrough Therapy designation for Rett syndrome -------------------------------------------------------------------------------- - FDA granted Breakthrough Therapy designation for NGN-401, a gene therapy for Rett syndrome. - Designation based on interim Phase 1/2 data showing clinically meaningful, durable multidomain improvements. - Completion of dosing in Embolden registrational trial expected Q2 2026. - Company plans to present additional interim Phase 1/2 data in mid-2026. - NGN-401 also has RMAT, Rare Pediatric Disease designations; part of FDA START Pilot Program. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1404644/000140464426000006/0001404644-26-000006-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1404644/000140464426000006/ngne-20260226.htm HTML page: https://secwatch.observer/filing/0001404644-26-000006 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer