BIIB vs KMB Comparison

Biogen is an established biopharmaceutical company focused on treatments for neurodegenerative and rare diseases. Its declining multiple sclerosis franchise is its largest revenue generator and contributed 40% of total revenue in 2025. Biogen also generates significant revenue from its CD20 collaboration agreements with Roche (19% of total in 2025), which includes oncology drugs Rituxan and Gazyva and multiple sclerosis drug Ocrevus. Biogen's newer franchises include Spinraza (spinal muscular atrophy, with partner Ionis), Leqembi (Alzheimer's disease, collabroation revenue from its partner Eisai), Skyclarys (Friedreich's ataxia, Reata), Zurzuvae (postpartum depression, Sage), and Qalsody (amyotrophic lateral sclerosis, Ionis).

With more than half of its sales from personal care and another third from consumer tissue products, Kimberly-Clark is a leading manufacturer in the tissue and hygiene realm. Its brand mix includes Huggies, Pull-Ups, Kotex, Depend, Kleenex, and Cottonelle. The firm also operates in the professional segment, partnering with businesses to provide workplace safety and sanitation solutions. Kimberly-Clark generates just over half its sales in North America and more than 10% in Europe, with the rest primarily concentrated in Asia and Latin America. It is slated to add Kenvue's consumer health portfolio to its mix in the second half of calendar year 2026.