BIIB Market Cap History
Below is a table of the BIIB market cap history going back to 2/5/2010:

Date BIIB Market Cap
2/5/201014.43B
4/16/201014.32B
7/16/201012.55B
10/22/201014.00B
1/31/201115.77B
4/18/201119.96B
7/22/201125.60B
10/25/201125.96B
1/31/201228.16B
4/24/201230.60B
7/18/201234.26B
10/19/201234.46B
1/31/201336.88B
4/18/201347.16B
7/18/201353.03B
10/21/201357.42B
1/31/201473.91B
4/18/201468.92B
7/18/201471.81B
10/17/201472.43B
1/30/201591.30B
3/23/2015108.80B
4/17/201598.66B
7/17/201595.16B
10/16/201560.71B
1/29/201659.71B
4/15/201658.82B
7/15/201657.04B
10/21/201663.24B
1/27/201760.08B
4/21/201757.89B
7/21/201759.82B
10/20/201771.50B
1/26/201877.84B
4/20/201855.50B
7/20/201872.26B
10/19/201864.56B
2/1/201965.09B
4/19/201943.90B
7/19/201942.66B
10/21/201940.33B
2/4/202049.31B

Also see: BIIB Shares Outstanding History
and BIIB YTD Return
BIIB Historical Market Cap:
+13.07% CAGR
BIIB Historical Market Cap: +13.07% CAGR

Mouse over chart for data details
2/5/2010 ...2/4/2020
Biogen is a biopharmaceutical company focused on discovering, developing and delivering therapies for people living with neurological and neurodegenerative diseases as well as related therapeutic adjacencies. Co.'s main growth areas include multiple sclerosis (MS) and neuroimmunology; Alzheimer's disease and dementia; neuromuscular disorders, including spinal muscular atrophy (SMA) and amyotrophic lateral sclerosis; movement disorders, including Parkinson's disease; and ophthalmology. Co.'s marketed products include TECFIDERA, AVONEX, PLEGRIDY, TYSABRI, VUMERITY and FAMPYRA for the treatment of MS, SPINRAZA for the treatment of SMA and FUMADERM for the treatment of severe plaque psoriasis. We show 42 historical shares outstanding datapoints in our BIIB shares outstanding history coverage, used to compute BIIB market cap on those dates.

Understanding the changing numbers of shares outstanding, the changing share price, and the resulting changing BIIB market cap history over the course of time is important for investors interested in comparing BIIB's market cap history versus its peers. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies, and then calculating their respective market caps. Comparing the share price of BIIB versus a peer is one thing; comparing BIIB market cap versus a peer is a completely different story. Furthermore, via fluctuation both in per-share price and in the number of shares outstanding (via issuance of new shares over time, the repurchase of existing shares), the market cap for a company like BIIB can fluctuate over the course of history. With this page we aim to empower investors researching BIIB by allowing them to research the BIIB market cap history.
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Biogen (BIIB) is categorized under the Healthcare sector; to help you further research historical market cap numbers, below are some other companies in the same sector:

BIO Market Cap History
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