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

Trendingnow

1

Now worth $200 million, Sarah Jessica Parker credits being ‘one of eight kids that struggled financially’ for her hunger, ambition, and work ethic

2

The Pentagon said Iran War costs $29 billion, but the real cost is closer to $200 billion—and counting

3

Amazon's record Prime Day masks a darker truth: Americans are spending more and getting less

1

Now worth $200 million, Sarah Jessica Parker credits being ‘one of eight kids that struggled financially’ for her hunger, ambition, and work ethic

2

The Pentagon said Iran War costs $29 billion, but the real cost is closer to $200 billion—and counting

3

Amazon's record Prime Day masks a darker truth: Americans are spending more and getting less
FinanceAllergan

Allergan CEO: How to survive an activist attack

By
Stephen Gandel
Stephen Gandel
Down Arrow Button Icon
By
Stephen Gandel
Stephen Gandel
Down Arrow Button Icon
February 12, 2015, 7:00 AM ET
Add Fortune on Google for similar content.

If Allergan CEO David Pyott were to do it all over again, he says he would be just as aggressive.

Last year, Allergan became the target of a coordinated hostile takeover bid from activist investor Bill Ackman and rival pharmaceutical company Valeant. The M&A battle was one of the most contentious in recent memory. To fend off the attack, Allergan (AGN) said Valeant’s financial reports were opaque and potentially misleading. It called Valeant’s business model unsustainable. And, eventually, it sued Valeant (VRX) and Ackman, accusing both of them of fraud and insider trading.

“I was quoted as saying Valeant is vile,” says Pyott.

And he says he would do it all again.

In an interview with Fortune, Pyott says the decision to go on the attack was his own, but he admits that having good advisors around him helped solidify his counterattack. He says his stance immediately won him private praise from some long-term shareholders.

Pyott says he knew Valeant CEO Michael Pearson before the company’s became entangled and that, as early as 2013, Pearson was interested in acquiring Allergan. He ran the numbers and says that he concluded that Valeant couldn’t make a successful hostile bid on its own. He didn’t know, however, that Valeant had teamed up with Ackman until a Wall Street Journal reporter called him looking for a response shortly before the bid was announced.

Almost immediately, Pyott says defending his company against the Ackman-Valeant combo was his full time job for most of 2014, spending 90% of his time on the hostile attack. He handed over day-to-day operations at Allergan to his top deputy. In that period, Allergan’s board met 34 times, mostly on Sundays, to strategize.

In the end, the effort paid off. Allergan was eventually acquired by Activis (ACT) for $219 a share, far more than the original $152 a share offer that Valeant and Ackman had offered. And Pyott says he ended up with a buyer that values investment in research and development as much as he does. Valeant would likely have cut R&D at Allergan—which is most famous for developing Botox—by 95%.

Over the past few months, Pyott says he has received several calls from CEOs who have either come under attack by activist shareholders or are worried they might be. They call to pick his brain or offer him congratulations. He says he was even recently asked to address a corporate board on the subject.

When a reporter recently joked that he could probably make a lot of money as a consultant to companies undergoing activist attack, Pyott responded that he probably could, but no thanks. Instead, he’s looking at helping to start a hospital in Africa, which is as far away as he can get from Bill Ackman and other activists.

About the Author
By Stephen Gandel
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
  • Pinterest icon

Latest in Finance

A pedestrian walks past a Gucci luxury fashion store at a shopping district on June 24, 2026, in Shenzhen, Guangdong Province, China.
RetailLuxury
Rich consumers taking GLP-1s are rebuying their wardrobes and eating smaller, fancier dishes—it’s a factor saving the luxury sector right now
By Eleanor PringleJune 25, 2026
1 hour ago
Top CD rates today, June 25, 2026: Lock in up to up to 4.40%
Personal FinanceCertificates of Deposit (CDs)
Top CD rates today, June 25, 2026: Lock in up to up to 4.40%
By Glen Luke FlanaganJune 25, 2026
2 hours ago
Today’s top high-yield savings rates: Up to 5.00% on June 25, 2026
Personal FinanceSavings accounts
Today’s top high-yield savings rates: Up to 5.00% on June 25, 2026
By Glen Luke FlanaganJune 25, 2026
2 hours ago
Micron drives global rally tech stock rally as traders abandon their fear of an AI bubble
InvestingMarkets
Micron drives global rally tech stock rally as traders abandon their fear of an AI bubble
By Jim EdwardsJune 25, 2026
2 hours ago
What bubble? JPMorgan says the $5.5 trillion AI capex explosion is profitable–for now
AIFinance
What bubble? JPMorgan says the $5.5 trillion AI capex explosion is profitable–for now
By Sheryl EstradaJune 25, 2026
2 hours ago
Man in a suit and tie
InvestingAmazon
Bill Ackman, David Tepper, and other billionaire fund managers are quietly piling into Amazon
By Amanda GerutJune 25, 2026
5 hours ago

Most Popular

Now worth $200 million, Sarah Jessica Parker credits being ‘one of eight kids that struggled financially’ for her hunger, ambition, and work ethic
Success
Now worth $200 million, Sarah Jessica Parker credits being ‘one of eight kids that struggled financially’ for her hunger, ambition, and work ethic
By Orianna Rosa RoyleJune 24, 2026
1 day ago
The Pentagon said Iran War costs $29 billion, but the real cost is closer to $200 billion—and counting
Economy
The Pentagon said Iran War costs $29 billion, but the real cost is closer to $200 billion—and counting
By Jacqueline MunisJune 24, 2026
1 day ago
Amazon's record Prime Day masks a darker truth: Americans are spending more and getting less
Retail
Amazon's record Prime Day masks a darker truth: Americans are spending more and getting less
By Nick LichtenbergJune 24, 2026
21 hours ago
Ray Dalio just finished a 10-day trip to China. He says global leaders know America ‘doesn’t have what it takes to fight to maintain its empire’
Asia
Ray Dalio just finished a 10-day trip to China. He says global leaders know America ‘doesn’t have what it takes to fight to maintain its empire’
By Nick LichtenbergJune 24, 2026
23 hours ago
After forcing workers back to the office, Goldman Sachs and JPMorgan Chase are now letting their staff work remotely—but only for the World Cup
Success
After forcing workers back to the office, Goldman Sachs and JPMorgan Chase are now letting their staff work remotely—but only for the World Cup
By Orianna Rosa RoyleJune 23, 2026
2 days ago
Trump’s international student crackdown kicked off a domino effect that could shave nearly $500 billion off the economy
Economy
Trump’s international student crackdown kicked off a domino effect that could shave nearly $500 billion off the economy
By Tristan BoveJune 24, 2026
18 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.