BillionaireNet
Rayner
Katharine Rayner
Rank #570
UNITED STATESMedia & EntertainmentMedia, automotive

Katharine Rayner

Net Worth
$6.64B
0% (24h)
Katharine Rayner, born in the mid-1940s, is an American heiress with an estimated net worth of $6.3 billion. Her wealth stems primarily from a substantial stake in Cox Enterprises, a media and automotive conglomerate. Rayner's source of wealth is media and automotive. She is the granddaughter of James M. Cox, the founder of Cox Enterprises. Her career has spanned roles as a journalist, author, and philanthropist. She is recognized for her philanthropic contributions, notably a $5 million donation to the Animal Medical Center in 2019. Rayner resides in East Hampton, New York, and is known for her avid gardening.

The Full Dossier

Early Life

Katharine Ann Johnson Rayner, known as Kathy, was born in Atlanta, Georgia, in either 1944 or 1945. She is the daughter of Anne Cox Chambers and Louis G. Johnson. Her maternal grandfather was James M. Cox, who founded Cox Enterprises.

Rise to Success

Rayner's wealth originates from her inheritance. In 2015, her mother, Anne Cox Chambers, divided her 49% share in Cox Enterprises among her three children. Katharine Rayner received an estimated 16.4% ownership stake in the company.

Key Business Strategies

Katharine Rayner has not taken an active role in the day-to-day operations of Cox Enterprises. The company is a privately held conglomerate, operating through subsidiaries like Cox Communications and Cox Automotive.

Philanthropy

Rayner is a committed philanthropist. In 2019, she donated over $5 million to the Animal Medical Center in New York City. She has also supported cultural and educational institutions. In 2017, she gave $15 million to the New York Public Library to enhance its research collections. More recently, in 2024, she pledged $10 million to the Morgan Library & Museum to endow the position of director, renaming it the Katharine J. Rayner Director.

Career Timeline

2024

Philanthropy

Pledged $10 million to the Morgan Library & Museum.

2017

Philanthropy

Donated $15 million to New York Public Library.

2019

Philanthropy

Donated over $5 million to the Animal Medical Center in NYC.

2015

Inheritance

Inherited a share of Cox Enterprises from her mother.

1984

Marriage

Married Jesse Kornbluth.

1944/1945

Birth

Born in Atlanta, Georgia.

Philanthropic Impact

Animal Welfare$5M+

Animal Medical Center

Donation in 2019 to support animal welfare.

Education and Culture$15M

New York Public Library

Gift to enhance research collections.

Education and Culture$10M

Morgan Library & Museum

Pledge to endow the position of Director.

Wealth Trajectory