Largest healthcare deals on record 

British-Swedish company AstraZeneca, co-developer of an experimental coronavirus vaccine, has approached U.S. rival Gilead Sciences over a possible merger to form the world’s largest drug company


AstraZeneca: Market value of $140 billion. Working with Oxford University’s Jenner Institute to develop AZD1222 coronavirus vaccine

Gilead Sciences: Market value of $96 billion. Its antiviral drug Remdesivir has been approved in U.S. for treatment of Covid-19 patients


Target company		Acquirer		Date		Merger value
Warner-Lambert 		Pfizer			Feb 1999	$90.2bn
SmithKline Beecham 	Glaxo			Jan 2000	$75.7bn
Celgene			Bristol-Myers Squibb	Nov 2019	$74.0bn
Allergan		Actavis			Mar 2015	$70.5bn
Aetna			CVS			Nov 2018	$68.1bn
Express Scripts		Cigna			Dec 2018	$67.0bn
Aventis			Sanofi			Apr 2004	$64.2bn
Allergan		AbbVie			May 2020	$63.0bn
Pharmacia		Pfizer			Jul 2002	$60.0bn
Shire			Takeda			Jan 2019	$46.0bn


Sources: Drug Store News, Forbes, PharmaTimes, Wall Street Journal
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