Segmentation by type distinguishes four therapeutic classes. Complement C5 inhibitors (e.g., eculizumab, ravulizumab) dominate with the highest market penetration, owing to their extensive clinical data and established reimbursement pathways. Complement C3 inhibitors such as pegcetacoplan represent a rapidly expanding niche, offering broader upstream blockade and potential efficacy in refractory cases, thereby capturing a growing share of late‑stage adopters. Emerging gene‑editing or RNA‑based modalities are still investigational but forecasted to influence future market composition as they promise durable, potentially curative outcomes. Finally, supportive care—including anticoagulants, iron chelation, and transfusion services—constitutes a complementary segment that, while smaller in direct drug revenue, contributes to total treatment cost structures and informs bundled‑payment negotiations. The interplay among these types dictates pricing dynamics, formulary placement, and the strategic focus of manufacturers within the PNH therapeutic landscape.