Corporate Governance Overview

Biogen is committed to sound principles of corporate governance and believes that such principles are critical to our success as a company and to obtaining the trust and confidence of our stockholders, employees, customers, distributors and suppliers. Here we share with you the composition of our Board of Directors and its committees, the guidelines and charters that guide our Board committees, our code of business conduct and other important governance documents. We also offer you the opportunity to report complaints and concerns about the company to our Board of Directors.