• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia

Trendingnow

1

OpenAI says its AI models secretly broke out of a secure test environment and hacked into AI company Hugging Face in order to cheat on an evaluation

2

Mark Cuban says he has the solution to growing income inequality, and it's to reward every employee—from CEO to janitor—with company stock

3

Mathematicians grapple with a ‘very rapid and very unsettling change’ as AI cracks yet another century-old problem

1

OpenAI says its AI models secretly broke out of a secure test environment and hacked into AI company Hugging Face in order to cheat on an evaluation

2

Mark Cuban says he has the solution to growing income inequality, and it's to reward every employee—from CEO to janitor—with company stock

3

Mathematicians grapple with a ‘very rapid and very unsettling change’ as AI cracks yet another century-old problem
FinancePershing Square Capital Management

Bill Ackman Is About to Get Seriously Grilled by Unhappy Investors

By
Reuters
Reuters
Down Arrow Button Icon
By
Reuters
Reuters
Down Arrow Button Icon
April 6, 2016, 5:11 AM ET
Squawk Box - Season 20
SQUAWK BOX -- Pictured: Bill Ackman, founder and CEO of Pershing Square Capital Management, in an interview on September 11, 2015 -- (Photo by: David Orrell/CNBC/NBCU Photo Bank via Getty Images)Photograph by David Orrell — CNBC/NBCU Photo Bank via Getty Images
Add Fortune on Google for similar content.

Billionaire investor William Ackman is set to face close questioning on Wednesday when he details his hedge fund’s biggest-ever quarterly loss and explains how he plans to handle the investment that led to the fall—Valeant Pharmaceuticals International (VRX).

Ackman’s Pershing Square Capital Management has blocked off one hour on Wednesday morning for him and his analysts to walk investors through exactly how one of its funds lost 25% in the first three months of 2016, including bets on Platform Specialty Products (PAH), Herbalife (HLF), and Valeant.

The losses are a severe blow for one of the hedge fund industry’s most closely followed investors and come on top of a record 20.5% drop in 2015.

He has already told investors that he plans to take a far more active role in Valeant and last month joined the company’s board, cementing his commitment to the company for some time. The board is looking for a new chief executive and is committed to filing a long-delayed annual report by the end of April.

Ackman is sure to be pressed for details on all those issues in the call, which is a regular quarterly update with investors.

A spokesman for Ackman declined to comment.

Five months ago Ackman held a call that lasted nearly four hours as he tried convince investors that Valeant was still a good buy. That message seemed to fall on deaf ears as the stock price has tumbled nearly 70% since then.

 

Ackman lost roughly $1 billion on his Valeant investment in one day last month when its stock fell 50% on fears it could default. That prompted even long-time Valeant supporters such as Brave Warrior Advisors’ Glenn Greenberg to liquidate half of his stake.

Overall, Ackman’s investors appear to be sticking with him. Redemption requests for the first quarter totaled roughly 2% of the firm’s roughly $12 billion in assets.

“This is going to be a badly scraped knee that may even require stitches but it is not life threatening,” one Ackman investor said about the losses and Valeant situation.

The structure of Pershing Square shields it from a sudden sharp loss of capital—investors can only withdraw their money gradually and some of them can only exit by selling shares to another investor.

In a rare piece of good news, Valeant said on Tuesday that it has finished an internal review and found no additional problems that would require further restatements of its financial statements. Its shares climbed 10%.

About the Author
By Reuters
See full bioRight Arrow Button Icon
Add Fortune on Google for similar content.

Latest in Finance

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • TikTok icon
  • YouTube icon

Latest in Finance

‘It’s called StreetEasy, not StreetHard’: Mamdani cracks down on scourge of ‘housefishing’ and ‘real estate slop’
Real EstateHousing
‘It’s called StreetEasy, not StreetHard’: Mamdani cracks down on scourge of ‘housefishing’ and ‘real estate slop’
By Tatiana SatauaJuly 22, 2026
2 hours ago
As Washington panics about Chinese AI, Jensen Huang says open-source models like Kimi are ‘excellent’ and should be embraced, not banned
AIChina
As Washington panics about Chinese AI, Jensen Huang says open-source models like Kimi are ‘excellent’ and should be embraced, not banned
By Marco Quiroz-GutierrezJuly 22, 2026
2 hours ago
Man holding his hands open
InvestingStock
A new group of stocks is transforming global equities markets. Meet ‘Memi,’ the $3 trillion sector fueled by AI’s insatiable hunger for memory chips
By Amanda GerutJuly 22, 2026
3 hours ago
Scott Bessent speaks inside the Oval Office.
EconomyU.S. Department of the Treasury
Scott Bessent casually says the U.S. has more than $1 trillion in gold—and that it doesn’t matter for the dollar
By Sasha RogelbergJuly 22, 2026
3 hours ago
Canadian Prime Minister Mark Carney speaks to US President Donald Trump in front of a window.
EconomyDonald Trump
Carney and Trump agree to speed up trade negotiations a day after Trump puts a 50% tariff on Canadian goods
By The Associated Press and Jim MorrisJuly 22, 2026
4 hours ago
Trump Accounts draw 6.5 million sign-ups, but some families are still waiting on the promised $1,000 funding
InvestingDonald Trump
Trump Accounts draw 6.5 million sign-ups, but some families are still waiting on the promised $1,000 funding
By The Associated Press and Moriah BalingitJuly 22, 2026
5 hours ago

Most Popular

OpenAI says its AI models secretly broke out of a secure test environment and hacked into AI company Hugging Face in order to cheat on an evaluation
Cybersecurity
OpenAI says its AI models secretly broke out of a secure test environment and hacked into AI company Hugging Face in order to cheat on an evaluation
By Jeremy Kahn and Emily ForliniJuly 21, 2026
1 day ago
Mark Cuban says he has the solution to growing income inequality, and it's to reward every employee—from CEO to janitor—with company stock
Success
Mark Cuban says he has the solution to growing income inequality, and it's to reward every employee—from CEO to janitor—with company stock
By Sasha RogelbergJuly 20, 2026
2 days ago
Mathematicians grapple with a ‘very rapid and very unsettling change’ as AI cracks yet another century-old problem
AI
Mathematicians grapple with a ‘very rapid and very unsettling change’ as AI cracks yet another century-old problem
By Eva RoytburgJuly 21, 2026
1 day ago
Despite a $156 million contract, Knicks star Jalen Brunson still calls his parents for financial advice any time he makes a big purchase
Success
Despite a $156 million contract, Knicks star Jalen Brunson still calls his parents for financial advice any time he makes a big purchase
By Emma BurleighJuly 21, 2026
1 day ago
‘I want to die broke’: Billionaire philanthropist Denny Sanford dies after giving away $4 billion
Success
‘I want to die broke’: Billionaire philanthropist Denny Sanford dies after giving away $4 billion
By Sydney LakeJuly 20, 2026
2 days ago
The millennial generation has split, new Fed research shows: Those over 35 are edging toward boomer-style wealth, while everyone else falls behind
Real Estate
The millennial generation has split, new Fed research shows: Those over 35 are edging toward boomer-style wealth, while everyone else falls behind
By Nick LichtenbergJuly 22, 2026
6 hours ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.