Sumner Redstone’s corporate boxing match isn’t doing much for Viacom’s stock price, but it’s spawned a booming economy for lawyers and p.r. firms representing all sides. If Massachusetts ...

Although Sumner Redstone has left his formal positions at Viacom and CBS , he still controls both through National Amusements, a privately held company that holds 80% of the voting stock in the ...

Media mogul Sumner Redstone is the former chairman of Viacom Inc. The ailing 92-year-old, who controls about 80% of the voting shares in Viacom and CBS, won his legal battle against his former ...

Shari Redstone, Sumner’s once-estranged daughter, was concurrently pursuing a merger of Viacom and CBS, the two companies that her father had intentionally separated more than a decade before.

Sumner Redstone’s granddaughter Keryn Redstone did not participate in Viacom’s boardroom settlement, and would like an opportunity to weigh in, according to court papers filed Monday.

It remains to be seen whether Sumner Redstone will be hit with the three-quarter million in gift tax and $15.5 million in interest that his brother's estate won on in Tax Court.

Sumner Redstone, center, at a 2012 charity event with, from left, Manuela Herzer and Sydney Holland, both ex-lovers who have figured in a battle over his care.

From the outset, Sumner Redstone was a curiosity. A cluster of power players 50 years ago were suddenly bidding for control of Hollywood’s revered movie studios. Competition was intense but most ...

Producer Steven Paul has optioned the rights to “Unscripted: The Epic Battle for a Media Empire and the Redstone Family Legacy,” with plans to develop the nonfiction bestseller by James B ...

An ugly fight is under way, and at the heart of it are two questions: Is the media mogul competent to make decisions? And if he isn't, who is best qualified to make them for him?