secwatch.observer — SEC 8-K summary ====================================== Issuer: Gossamer Bio, Inc. (GOSS) CIK: 0001728117 Form: 8-K Filed at: 2025-08-05T23:59:59+00:00 Accession: 0001728117-25-000069 Event type: earnings Sentiment: neutral Materiality: 0.65 Item codes: 2.02, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Gossamer Bio Q2 net loss $38.3M; PROSERA Phase 3 topline due Feb 2026 --------------------------------------------------------------------- - Net loss $38.3M ($0.17 per share) vs net income $49.2M in Q2 2024, driven by $88.8M one-time license revenue in prior year. - Cash, equivalents and marketable securities $212.9M as of June 30, 2025; runway into 2027. - PROSERA Phase 3 PAH study enrolled 390 patients; topline results expected February 2026. - SERANATA Phase 3 PH-ILD study first site activations planned Q4 2025; 480-patient, 24-week trial. - Collaboration revenue $11.5M (mostly cost reimbursement from Chiesi) vs $95.8M in Q2 2024. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1728117/000172811725000069/0001728117-25-000069-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1728117/000172811725000069/goss-20250805.htm HTML page: https://secwatch.observer/filing/0001728117-25-000069 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer