Activist investor Bill Ackman is boosting his stake in both Fannie Mae and Freddie Mac to more than 11 percent in each.» Read More
Hedge fund manager Bill Ackman renewed his attack on Herbalife on Tuesday.
Carl Icahn digs in on his criticism of eBay's management and weighs in on Bill Ackman again.
Bill Ackman, who is betting $1.16 billion that Herbalife is a fraud, spent $264,000 in 2013 on lobbyists to press his case against the company.
Herbalife delivered quarterly earnings and revenue that surpassed analysts' expectations on Tuesday, sending shares higher in after-hours trading.
Here's what Pershing Square's Bill Ackman thinks about a slew of companies.
Who's behind the $32 million bet against Herbalife?
Nu Skin shares plunged on concerns over an investigation by Chinese authorities' into its business practices in the country.
The whiskey represents a global growth area, said Mario Gabelli, chairman and CEO of Gabelli Funds.
Herbalife is relieved getting its financials back and intents to get back to "business as usual," said people close to the company.
Bill Ackman is preparing another major presentation on Herbalife, a source says.
Activist hedge funds are taking on larger companies and seeking long-term change over short-term profit, unlike raiders of the past. The New York Times reports.
New scrutiny of Herbalife over quality-control issues doesn't change much, Stephen Weiss of Short Hills Capital says.
As part of the deal, the board "reaffirmed its overwhelming support" for CEO Myron Ullman and Chairman Thomas Engibous, who had been targeted by Ackman.
J.C. Penney and hedge fund Pershing Square's Bill Ackman are in talks to resolve their dispute over the leadership of the U.S. retailer, a source said on Monday.
Starbucks CEO Howard Schultz on Friday had choice words for activist investor Bill Ackman and his very public campaign to change J.C. Penney's leadership team.
If you have followed the J.C. Penney's media soap opera, you know the "Bill Ackman TV trade" is a losing one, said retail analyst Stacey Widlitz.
The battle over Herbalife intensified as George Soros has taken a large long position in the nutritional supplements maker, according to sources.
At 77 years old, activist investor Carl Icahn has traded in his axe for a Warren Buffett-like investment style.
Carl Icahn has found something else where he can beat Bill Ackman. The billionaire was the first of the two to make it to Twitter.
"Squawk Box" hit the road this week from the HP tech conference in Vegas to the US Open -- with a whole lot of, um, Squawkward moments in between!