Munger, who is vice-chairman at Berkshire Hathaway, has made it clear that he's not a fan of Valeant.
He has called the Canadian drug company's strategy of acquiring drugs and raising the prices "deeply immoral."
Ackman, who has lost more than $2 billion on Valeant this year, used the symposium as an opportunity to criticize Berkshire Hathaway's investment in Coca-Cola.
Below are some tweets of his comments:
Ackman: Charlie Munger said Valeant is a deeply immoral company. I would argue that Coca Cola does enormous damage to society. $vrx $ko
- crowdturtle (@crowdturtle) November 11, 2015
Ackman: a key business Berkshire owns is Coca Cola. Coke's business philosophy is to displace the water children consume with sugar water.
- crowdturtle (@crowdturtle) November 11, 2015
Ackman: there is no disclaimer on a Coke can on the harm it can cause. Promoting sugar water to society is damaging. ??
- crowdturtle (@crowdturtle) November 11, 2015
Ackman: I don't think Buffett has had water since the 1950s. Ackman is so savage sometimes.
- crowdturtle (@crowdturtle) November 11, 2015