Exhibit 99.1 Omeros Corporation Reports First Quarter 2024 Financial Results – Conference Call Today at 4:30 p.m. ET SEATTLE, WA – May 15, 2024 – Omeros Corporation (Nasdaq: OMER), a clinical-stage biopharmaceutical company committed to discovering, developing and commercializing small-molecule and protein therapeutics for large-market and orphan indications targeting immunologic disorders including complement-mediated diseases, cancers, and addictive and compulsive disorders, today announced recent highlig ...