Segmentation by type isolates two manufacturing origins—plasma‑derived and recombinant antithrombin III—each influencing market dynamics through distinct cost structures, safety profiles, and regulatory pathways. Plasma‑derived products, contributing an estimated 55 % of global sales, benefit from established purification technologies and a broad donor base, yet face ongoing scrutiny over pathogen transmission risk and supply variability. Recombinant antithrombin III, capturing roughly 45 % of the market, commands premium pricing due to its consistent batch‑to‑batch purity, reduced immunogenicity, and scalable bioprocessing; however, it encounters higher development expenditures and stricter biosimilarity assessments. The relative weighting of these types varies by region, with mature markets favoring recombinant formulations for their safety assurances, while emerging economies retain reliance on plasma sources owing to lower acquisition costs. Understanding this type‑based taxonomy is essential for forecasting pricing trends, capacity planning, and competitive positioning within the Human Antithrombin III market.