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Pershing Square Capital Management LP Founder And Chief Executive Officer William "Bill" Ackman
FeaturesAckman’s back and Allergan — 5 things to know today
By Tom Huddleston Jr. and Geoffrey SmithAugust 6, 2015
Brenton Saunders, David Pyott
FinanceFrom Actavis to Allergan: One pharma company’s wild dealmaking journey
By Stacy Jones, Kacy Burdette and Jen WiecznerJuly 30, 2015
A Teva Pharmaceutical Industries factory in Jerusalem, Israel.
FinanceThe real reasons for the pharma merger boom
By Jen WiecznerJuly 28, 2015
IL: Corporations In Illinois
FinanceFat Pharma: Pfizer-Hospira and the top 10 overpriced drug deals ever
By Jen WiecznerFebruary 6, 2015
J. Michael Pearson, Chairman of the board and Chief Executive Officer of Valeant Pharmaceuticals International Inc., waits for the start of their annual general meeting in Laval, Quebec
FinanceAfter Allergan loss, is Valeant dumpster diving?
By Jen WiecznerJanuary 31, 2015
Actavis CEO Brenton Saunders and Allergan CEO David Pyotton pose together on the floor of the New York Stock Exchange
FinanceAllergan CEO hands Botox maker to lawyer instead of consultant
By Stephen GandelNovember 17, 2014
Botox
FinanceActavis agrees to buy Botox-maker Allergan for $66 billion
By John KellNovember 17, 2014
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