AstraZeneca plc (LSE: AZN, NYSE: AZN, OMX: AZN) is a global pharmaceutical and biologics company headquartered in London, United Kingdom. It is the world's seventh-largest pharmaceutical company measured by revenues and has operations in over 100 countries. It has a portfolio of products for major disease areas including cancer, cardiovascular, gastrointestinal, infection, neuroscience, respiratory and inflammation.

Its primary listing is on the London Stock Exchange and it is a constituent of the FTSE 100 Index. It has secondary listings on the New York Stock Exchange and the OMX exchange.

Astra AB was founded in 1913 by 400 doctors and apothecaries in Södertälje, Sweden. In 1994 the company formed a joint venture with Merck to market Losec, an ulcer-treatment drug.

Source: Wikipedia