Michael Redstone

Michael Redstone is an American businessman and member of the Redstone family, notable for his role in the family-owned National Amusements Inc. (NAI), a major theater chain that formerly controlled significant stakes in media conglomerates including Paramount Global (formerly ViacomCBS), and for initiating a prominent lawsuit against family members over alleged mismanagement of family shares.

Born as the son of Edward Stanton Redstone (1928–2011), brother of media executive Sumner Redstone (1923–2020), Michael is Sumner's nephew and cousin to Sumner's children, Shari Redstone and Brent Redstone. He worked at NAI, the privately held company founded by his grandfather Michael "Mickey" Redstone in the mid-20th century, which grew into a powerhouse that controlled assets like Paramount Pictures, CBS, MTV, and Nickelodeon through its media investments. During his career, Sumner Redstone reportedly provided support for Michael's employment and education at the company.

In November 2006, Michael Redstone, along with trustees representing interests of Redstone family members, filed a lawsuit in Massachusetts Superior Court against his uncle Sumner Redstone and father Edward Redstone, accusing them of self-dealing, breaches of fiduciary duty, and unjust enrichment. The suit alleged that share redemption transactions in 1972 and the early 1980s undervalued and deprived Michael and his late sister, Ruth Ann Redstone, of their rightful inheritance in NAI, which was then worth an estimated $8 billion; it sought damages equivalent to a 50% stake in the company. NAI described the claims as baseless, noting Sumner's prior assistance to Michael. In December 2009, a Massachusetts judge ruled in favor of Sumner Redstone, dismissing the case and upholding the validity of the share transactions.

The legal battle highlighted longstanding tensions within the Redstone family dynasty, which has been marked by multiple intra-family disputes over control of NAI and its media empire, including separate suits by Brent Redstone against his father Sumner. These tensions culminated in the 2025 merger of Paramount Global with Skydance Media, ending the Redstone family's controlling interest in the media assets. Despite the outcome, the case underscored Michael's position as a peripheral but litigious figure in one of America's most influential media families.