ALXN Market Cap History
Below is a table of the ALXN market cap history going back to 2/16/2010:

Date ALXN Market Cap
2/16/20104.27B
4/28/20104.87B
7/27/20104.91B
10/26/20106.12B
2/11/20118.22B
4/28/20118.92B
5/23/20118.70B
10/26/201112.38B
2/11/201215.52B
4/20/201217.15B
7/24/201218.85B
10/23/201219.61B
2/11/201318.02B
4/23/201317.89B
7/23/201321.40B
10/23/201321.50B
2/3/201430.60B
4/23/201430.11B
7/23/201434.24B
10/22/201434.36B
2/4/201536.04B
4/21/201537.28B
7/29/201544.95B
10/28/201539.97B
2/3/201632.89B
4/26/201634.50B
7/27/201629.10B
12/29/201627.68B
2/13/201728.70B
4/24/201726.84B
7/24/201729.18B
10/23/201730.20B
2/5/201824.99B
4/23/201823.99B
7/23/201829.99B
10/22/201827.65B
1/31/201927.48B
4/23/201929.68B
7/22/201927.43B
10/21/201922.29B
1/29/202023.68B
5/4/202022.93B
7/28/202023.06B
10/27/202026.26B

Also see: ALXN Shares Outstanding History
and ALXN YTD Return
ALXN Historical Market Cap:
+18.50% CAGR
ALXN Historical Market Cap: +18.50% CAGR

Mouse over chart for data details
2/16/2010 ...10/27/2020
Alexion Pharmaceuticals is a biopharmaceutical company serving patients and families affected by rare diseases through the discovery, development and commercialization of therapies. Co. has developed and commercialized two complement inhibitors to treat patients with paroxysmal nocturnal hemoglobinuria and atypical hemolytic uremic syndrome, as well as the complement inhibitor to treat anti-acetylcholine receptor antibody-positive generalized myasthenia gravis and neuromyelitis optica spectrum disorder in patients who are anti-aquaporin-4 antibody positive. In addition, Co. has two enzyme replacement therapies for metabolic disorders, hypophosphatasia and lysosomal acid lipase deficiency. We show 44 historical shares outstanding datapoints in our ALXN shares outstanding history coverage, used to compute ALXN market cap on those dates.

Understanding the changing numbers of shares outstanding, the changing share price, and the resulting changing ALXN market cap history over the course of time is important for investors interested in comparing ALXN'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 ALXN versus a peer is one thing; comparing ALXN 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 ALXN can fluctuate over the course of history. With this page we aim to empower investors researching ALXN by allowing them to research the ALXN market cap history.
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Alexion Pharmaceuticals (ALXN) is categorized under the Healthcare sector; to help you further research historical market cap numbers, below are some other companies in the same sector:

AMAG Market Cap History
AMDA Market Cap History
AMED Market Cap History
AMEH Market Cap History
AMGN Market Cap History
AMN Market Cap History
AMPH Market Cap History
ANAB Market Cap History
ANGO Market Cap History
ANIK Market Cap History
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