Annexon(ANNX) - 2025 Q2 - Quarterly Results

Exhibit 99.1 Annexon Reports Second Quarter 2025 Financial Results, Portfolio Progress and Key Anticipated Milestones Tanruprubart (formerly ANX005) for GBS Advancing Through Regulatory Interactions; MAA Submission in Europe Anticipated in First Quarter of 2026; Ongoing Discussions with FDA Regarding Generalizability Package to Support a BLA Accelerated Completion of Enrollment for Global Phase 3 ARCHER II Trial of Vonaprument (formerly ANX007) for Dry AMD with GA; Selected for EMA PRIME Product Development ...