secwatch.observer — SEC 8-K summary ====================================== Issuer: Neurogene Inc. (NGNE) CIK: 0001404644 Form: 8-K Filed at: 2026-06-08T11:32:53+00:00 Accession: 0001404644-26-000044 Event type: other_material Sentiment: positive Materiality: 0.70 Item codes: 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Neurogene completes dosing in NGN-401 Rett trial; no HLH, topline expected 2H 2027 -------------------------------------------------------------------------------- - Dosed 25 participants in Embolden trial (target 20, ITT up to 24) due to strong demand from Rett community. - NGN-401 generally well-tolerated; no HLH cases at 1E15 vg dose across Phase 1/2 and Embolden (n=35). - Topline data from registrational trial expected in 2H 2027; BLA submission planned. - Interim Phase 1/2 data with ≥12-month follow-up for all 10 participants expected mid-2026. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1404644/000140464426000044/0001404644-26-000044-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1404644/000140464426000044/ngne-20260608.htm HTML page: https://secwatch.observer/filing/0001404644-26-000044 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer