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Skip to main navigation Stock Quote & Chart NASDAQ: BIIB $254.15 Nov 23, 2021 4:00 PM EST Change+1.94 (0.00%) Volume799,083 Today's Open$252.07 Previous Close$254.15 Today's High$254.45 Today's Low$249.52 52 Week High$468.55 52 Week Low$238.40 Data Provided by Refinitiv. Minimum 15 minutes delayed. Tools Print Page Stockholder Communications E-mail Alerts FAQs Footer Links Investors Careers News Releases Our Stories Receive Our Updates Contact Us Follow us: Legal Community Guidelines Cookie Policy Forward-Looking Statement Notice to CA Residents Privacy Policy Terms & Conditions © 2021 Biogen