Pershing Square Capital Management, a major investment holding company managed by billionaire Bill Ackman, released on Wednesday its quarterly letter to investors.

Steven Mnuchin, President-elect Donald Trump’s nominee for Treasury Secretary, said on Wednesday that privatizing Federal National Mortgage Assctn Fnni Me (OTC: FNMA) and Federal Home Loan Mortgage Corp (OTC: FMCC) was one of his top 10 priorities.

In a new piece for the Wall Street Journal, legendary activist investor and Icahn Enterprises LP (NASDAQ: IEP) CEO Carl Icahn discussed the rampant “manipulation, speculation, and fraud” going on within the U.S.

Argus has upgraded Air Products & Chemicals, Inc. (NYSE: APD) to Buy from Hold following the company’s restructuring actions, which the brokerage believes will allow it to pursue stronger growth opportunities, especially in the energy sector.

Carl Icahn's quest for taking Federal-Mogul Holdings Corp (NASDAQ: FDML) remains a pipe dream. At least that is what the third successive extension of the deadline for the expiry of tender offer is suggesting.

Hertz Global Holdings, Inc (NYSE: HTZ) cut its fiscal-year guidance by 30 percent, and investor confidence in management declined further.

Morgan Stanley’s Adam Jonas downgraded the rating on the company to Equal Weight while lowering the price target from $57 to $30.

Billionaire investor Bill Ackman acquired an approximate 8.5 percent stake in Zoetis Inc (NYSE: ZTS), a producer of animal medicines and vaccinations, back in November 2014.

The battle of billionaires to take control of auto parts retailer Federal-Mogul Holdings Corp (NASDAQ: FDML) is heating up. It remains to be seen which of the billionaires can sway it his way.

Carl Icahn, the billionaire investor and Donald Trump backer chose to skip Trump's victory party and went home to trade index futures.

Pershing Square Holding, the hedge fund controlled by billionaire Bill Ackman, once more brought home a bad report card.

Following Herbalife Ltd.'s (NYSE: HLF) disappointing Q3 earnings report, it's now crunch time for billionaire Herbalife investor Carl Icahn. Revenue growth came in at just 2 percent year-over-year, while earnings fell 5 percent, both short of consensus expectations.

Carl Icahn increased his stake in Herbalife Ltd. (NYSE: HLF) to 23.05 percent. Anyone familiar with the matter knows what a long strange trip it’s been for Icahn, Bill Ackman and Herbalife.

Herbalife Ltd. (NYSE: HLF) announced its Q3 results after the market close. While EPS of $1.21 beat the Street’s consensus by $0.12, revenue of $1.12 billion (up 1.8 percent year-over-year) missed estimates by $20 million.

Xerox Corp (NYSE: XRX) shares came under pressure after the biggest individual shareholder, Darwin Deason, preferred a lawsuit blocking the company from splitting into two public traded firms. He is said to be holding about 6.1 percent stake in the company.

Two of Bill Ackman’s most highly-publicized investments are having a tough day on Tuesday during a weak session for the market.

Following Sunday night’s presidential debate, billionaire Donald Trump supporter Carl Icahn announced that the Trump Taj Mahal in Atlantic City will be closing.

On the heels of its 30th anniversary, Oliver Stone's '80s cult classic film "Wall Street" defines an era and encapsulates the insider trading scandals and massive wealth produced during the decade. The film was both Charlie Sheen and Michael Douglas' coming out party, with Douglas' iconic Gordon Gekko character winning an Oscar for best actor and inspiring a generation of imitators.

Roughly a year has passed since Chipotle Mexican Grill, Inc. (NYSE: CMG)’s disastrous food contamination outbreaks. Unfortunately for investors, Chipotle’s revenue and share price are still significantly down from their pre-outbreak peaks.

Shares of Chipotle Mexican Grill, Inc. (NYSE: CMG) gained almost 6 percent Wednesday, after Bill Ackman’s Pershing Square disclosed a 9.9 percent stake in the restaurant operator.

Activist investor Bill Ackman disclosed a 9.9 percent stake in Chipotle Mexican Grill, Inc. (NYSE: CMG).

Even the best investors in the world sometimes make bad trades. The next time you’re kicking yourself about making a bad investment, try to remember that even these legendary investors whiff badly on occasion.