David Maris, Wells Fargo senior analyst who once called Valeant’s sharp fall, discusses what Bill Ackman's exit means for the future of the company.
Valeant sinks as Pershing Square's Bill Ackman throws in the towel. Karen Firestone, Aureus Asset Management, and Kourtney Gibson, Loop Capital president, weigh in.
CNBC's Leslie Picker takes a look at Bill Ackman's stock-picking history, including winners and losers.
"Fast Money Halftime Report" trader Josh Brown weighs in on Valeant, as the stock plunges following Bill Ackman's decision to sell his entire stake.
In a Trump market it's just a disaster, says "Squawk on the Street's" Jim Cramer discussing Bill Ackman's huge loss in Valeant with David Faber.
Hedge fund investor Bill Ackman is throwing in the towel on his pharma bet on Valeant, reports CNBC's David Faber.
Sources said Ackman sold his 27.2 million shares at around $11 each.
Pershing Square's Bill Ackman talks to CNBC's Scott Wapner about why he decided to sell his entire stake in Valeant.
CNBC's Meg Tirrell reports on Pershing Square's Bill Ackman and his decision to sell his entire stake in Valeant. The "Fast Money" traders weigh in.
According to sources, Bill Ackman sells 27.2 million Valeant shares around $11/share and believes he'll be stepping off the company's board. CNBC's David Faber reports.
Just 3 percent said returns topped expectations. Only 31 percent said returns met expectations, while 66 percent said returns fell short.
Billionaire activist investor Carl Icahn increased his holdings in Herbalife and Hertz Global Holdings in the fourth quarter, and exited Voltari.
The outgoing CEO of Canadian Pacific Railway is teaming up with former Pershing Square partner Paul Hilal to look at CSX, The Wall Street Journal said.
The New York Post says the hedge fund boss and his wife Karen Ann Herskovitz are getting a divorce after 25 years together.
The properties up for grabs could include the their $90 million penthouse at One57.
Papa said he would consider selling some of Valeant's core businesses and assets against the wishes of some of its major shareholders.
Kraft-Heinz is planning to acquire Mondelez, which is currently in the midst of a $3 billion cost saving program, according to a report.
CNBC's Meg Tirrell reports the latest surrounding the Valeant and Philidor controversy. CNBC's Kate Kelly and David Winters, Wintergreen Advisors CEO, weigh in on Valeant's stock.
Donald Trump's astonishing victory over Hillary Clinton was met with a mostly warm reception by the U.S. business community.
CNBC's Kate Kelly reports highlights from the New York Times' DealBook Conference, including activist investor Bill Ackman on Trump and his key investments, and CBS & Viacom Vice Chair Shari Redstone on the possible recombination of CBS and Viacom.