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

Why the Nasty Redstone Family Squabble Matters to Viacom Shareholders

By
Peter Elkind
Peter Elkind
and
Aaron Task
Aaron Task
Down Arrow Button Icon
By
Peter Elkind
Peter Elkind
and
Aaron Task
Aaron Task
Down Arrow Button Icon
May 10, 2016, 10:48 AM ET
Sumner Redstone's daughter Shari Redstone leaves a downtown courthouse in Los Angeles
Sumner Redstone's daughter Shari Redstone (C) leaves a downtown courthouse in Los Angeles where her father's former girlfriend Manuela Herzer is suing the 92 year-old who is the controlling shareholder of Viacom and CBS in Los Angeles, California May 6, 2016. REUTERS/Kevork Djansezian TPX IMAGES OF THE DAY - RTX2D63JKevork Djansezian — Reuters

Sumner Redstone’s court victory Monday morning won’t end the legal battle vs. his ousted companion Manuela Herzer—who vowed to appeal the ruling—and did nothing to quell the long-simmering animosity among the Redstone clan.

You think your family squabbles are nasty? Check out these tweets from Sumner’s granddaughter Keryn about her aunt Shari (Sumner’s daughter):

https://twitter.com/KerynRedstone/status/729756295142637568

https://twitter.com/KerynRedstone/status/729757825983881220

https://twitter.com/KerynRedstone/status/729840234339311616

(Update: Subsequent to Fortune publishing this story, Keryn Redstone deleted the Tweets above which featured a very graphic photoshopped image of Shari Redstone, which can be found here.)

Social media adds a new public twist to the story, but there’s nothing new about vicious infighting inside the Redstone family, as Fortune chronicled in a three-part investigation, The Disturbing Decline of Sumner Redstone:

Redstones have been battling one another in court for nearly a half-century. Most of it focused on whether Sumner had swindled his relatives in winning control of the family’s movie-theater business, called National Amusements. Eddie sued his brother, Sumner, and father, Mickey. Brent Redstone, Sumner’s son, accused his father and sister Shari of self-dealing and misappropriating millions of dollars. Nephew Michael (Eddie’s son) sued his dad and uncle Sumner.

The bitterness transcended the courtroom. Sumner and his son Brent haven’t spoken in a decade. Eddie died in 2011; Sumner didn’t attend his brother’s funeral. And the conflict has now extended into a fourth generation: Brent’s daughter Keryn has sided with Manuela Herzer, battling against Shari Redstone and her children.

To be sure, the venomous tweets from Redstone’s 34-year old granddaughter shouldn’t matter much to shareholders of CBS (CBS) and Viacom (VIAB), but Sumner Redstone’s personal and business lives have always been deeply—often painfully—intertwined. If Herzer manages to win her appeal and a judge eventually finds that Redstone is not competent, that could lead to a change in control at Viacom and CBS. Such a ruling could trigger a provision in the trust that holds his 80% of the voting shares of both companies, according to a person familiar with the matter, as Fortune previously reported here. Control would then pass from Redstone to the trust’s seven trustees. They include Viacom vice-chair Shari Redstone and Viacom president and CEO Philippe Dauman—and several trustees whose future votes are uncertain. If she wins, Dauman might swiftly be gone. If Dauman prevails, he’ll extend his influence beyond Viacom, to CBS.

Meanwhile, the WSJ reports Viacom board members are considering further cuts to Redstone’s pay and planning to visit him to investigate his competency for themselves, which some requesting to visit him through his daughter, Shari. If so, it would be yet another belated step for the company’s directors, many of whom Redstone appointed, As Fortune previously put it, “It was this tawdry case [the Herzer suit]—and not a planned corporate succession or steps taken by either board—that forced his belated departure as chairman of the two companies in February, despite his repeated vows that he’d never step down.”

About the Authors
By Peter Elkind
See full bioRight Arrow Button Icon
By Aaron Task
See full bioRight Arrow Button Icon

Latest in Leadership

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 Leadership

As hantavirus outbreak unfolds, the CDC is missing in action, experts say. ‘I’m very sorry to say that we are not prepared’
PoliticsHealth
As hantavirus outbreak unfolds, the CDC is missing in action, experts say. ‘I’m very sorry to say that we are not prepared’
By Mike Stobbe and The Associated PressMay 9, 2026
5 hours ago
Photo of Zak Brown
SuccessSports
Before the McLaren CEO got a $50 million payday from his team’s F1 championship, he was a high-school dropout who got his start on Wheel of Fortune
By Sasha RogelbergMay 9, 2026
6 hours ago
‘Employers are increasingly turning to degree and GPA’ in hiring: Recruiters retreat from ‘talent is everywhere,’ double down on top colleges
Future of WorkEducation
‘Employers are increasingly turning to degree and GPA’ in hiring: Recruiters retreat from ‘talent is everywhere,’ double down on top colleges
By Jake AngeloMay 9, 2026
6 hours ago
Protester at Jeffrey Epstein hearing
LawJeffrey Epstein
How Jeffrey Epstein leveraged a prestigious U.N.-affiliated nonprofit—and the Gates Foundation—to control women and keep them in his orbit
By Jessica MathewsMay 9, 2026
7 hours ago
Red flag test: former CEO explains why he rejects job candidates who say they can start right away
SuccessThe Interview Playbook
Red flag test: former CEO explains why he rejects job candidates who say they can start right away
By Orianna Rosa RoyleMay 9, 2026
7 hours ago
Qualcomm’s CEO is working with ‘pretty much all’ major AI players on top-secret devices—and powering OpenAI’s first push into hardware
AIQualcomm
Qualcomm’s CEO is working with ‘pretty much all’ major AI players on top-secret devices—and powering OpenAI’s first push into hardware
By Eva RoytburgMay 9, 2026
9 hours ago

Most Popular

California farmers must destroy 420,000 peach trees after Del Monte closes its canneries and cancels more than $550 million in long-term contracts
North America
California farmers must destroy 420,000 peach trees after Del Monte closes its canneries and cancels more than $550 million in long-term contracts
By Sasha RogelbergMay 7, 2026
2 days ago
A Michigan farm town voted down plans for a giant OpenAI-Oracle data center. Weeks later, construction began
Magazine
A Michigan farm town voted down plans for a giant OpenAI-Oracle data center. Weeks later, construction began
By Sharon GoldmanMay 6, 2026
4 days ago
'Blue dot fever' plagues musicians like Post Malone, Meghan Trainor, and Zayn as a growing list of artists cancel tours due to lagging ticket sales
Arts & Entertainment
'Blue dot fever' plagues musicians like Post Malone, Meghan Trainor, and Zayn as a growing list of artists cancel tours due to lagging ticket sales
By Dave Lozo and Morning BrewMay 7, 2026
2 days ago
The CEO of Maersk, which ships 14% of everything you buy, said the Iran war is adding $500 million in monthly costs it's trying not to pass down
Energy
The CEO of Maersk, which ships 14% of everything you buy, said the Iran war is adding $500 million in monthly costs it's trying not to pass down
By Sasha RogelbergMay 8, 2026
1 day ago
Current price of oil as of May 8, 2026
Personal Finance
Current price of oil as of May 8, 2026
By Joseph HostetlerMay 8, 2026
1 day ago
You're probably safe from the Hantavirus outbreak, but here's what you absolutely must not do, experts say
Politics
You're probably safe from the Hantavirus outbreak, but here's what you absolutely must not do, experts say
By Catherina GioinoMay 8, 2026
23 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.