Alexion Pharmaceuticals, Inc. Market Cap 2010-2021 | ALXN

Alexion Pharmaceuticals, Inc. market cap history and chart from 2010 to 2021. ALXN was delisted after March 31, 2021 and its final market cap on that date was $40.097B.

Market capitalization (or market value) is the most commonly used method of measuring the size of a publicly traded company and is calculated by multiplying the current stock price by the number of shares outstanding.