TDY vs BIIB Comparison

Teledyne Technologies Inc sells technologies for industrial markets. Roughly a fourth of Teledyne's revenue comes from contracts with the United States government. The firm operates in four segments: instrumentation, digital imaging, aerospace and defense electronics, and engineered systems. The instrumentation segment provides monitoring instruments primarily for marine and environmental applications. The digital imaging segment contributes the largest proportion of revenue and includes image sensors and cameras for industrial, government, and medical customers. The aerospace and defense electronics segment provides electronic components and communication products for aircraft. The engineered systems segment provides solutions for defense, space, environmental, and energy applications.

Biogen and Idec merged in 2003, combining forces to market Biogen's multiple sclerosis drug Avonex and Idec's cancer drug Rituxan. Today, Rituxan and next-generation antibody Gazyva (oncology) and Ocrevus (multiple sclerosis) are marketed via a collaboration with Roche. Biogen markets several multiple sclerosis drugs including Plegridy, Tysabri, Tecfidera, and Vumerity. Biogen's newer products include Spinraza (SMA, with partner Ionis), Leqembi (Alzheimers, with partner Eisai), Skyclarys (Friedreich's Ataxia, Reata), Zurzuvae (postpartum depression, Sage), and Qalsody (ALS, Ionis). Biogen has several drug candidates in phase 3 trials in neurology, immunology, and rare diseases.