Billionaire Profile
Ira Rennert
Global Rank
#1119

Image: Hudson Institute | CC BY 2.0 | via Wikimedia Commons

Ira Rennert

CEO, Renco Group
UNITED STATES
Real-Time Net Worth
$3.814B
Estimated based on Renco Group stock value as of March 6, 2026
0% (24h)
Age
91
Source
Investments
Industry
finance-investments
Citizenship
UNITED STATES

Biography

Ira Rennert is an American billionaire businessman and the Chairman and CEO of the Renco Group. Born in 1934, Rennert's source of wealth is primarily from investments. He built his fortune by investing in junk bonds and acquiring distressed companies in industries such as mining and manufacturing. His career has been marked by both business successes and controversies. As of November 2024, his estimated net worth is $3.8 billion.

Fact Checked
Verified by Editorial Team
Live Data
Updated 3/6/2026

Wealth Over Time

In-Depth Profile

Early Life

Ira Leon Rennert was born on May 31, 1934, in Brooklyn, New York. His parents were Jewish immigrants from Poland and Romania. He graduated from Brooklyn College in 1954 and earned a master's degree from New York University's Stern School of Business in 1956.

Rise to Success

Rennert began his career as a credit analyst on Wall Street in 1956. He later launched his own business, I. L. Rennert & Co., in 1962. Rennert gained prominence by investing in junk bonds and acquiring struggling companies. Through Renco Group, he acquired companies in various industries, including AM General (Humvee manufacturer) and Doe Run Company (lead and zinc producer).

Key Business Strategies

Rennert's strategy for building Renco involved acquiring struggling companies and financing acquisitions through junk bonds. He would then pay substantial dividends to himself. This strategy allowed him to acquire companies without investing much of his own money.

Philanthropy

Rennert has made substantial philanthropic contributions, including funding various educational and Jewish cultural initiatives. He has endowed the Ira Leon Rennert Professorship of Entrepreneurial Finance at New York University. He has also supported Jewish study centers in Jerusalem and elsewhere.

Career Milestones

1956

Credit Analyst on Wall Street

Began career as a credit analyst.

1962

Founded I. L. Rennert & Co.

Launched his own business.

1975

Founded Renco Group

Founded the holding company Renco Group.

1992

Acquired AM General

Acquired AM General, the manufacturer of the Humvee.

Philanthropy & Social Impact

Education

Ira Leon Rennert Professorship of Entrepreneurial Finance

Undisclosed

Endowed the Ira Leon Rennert Professorship of Entrepreneurial Finance at New York University.

Controversies & Challenges

2015

Lawsuit over MagCorp

Paid $118 million to the creditors of Magnesium Corp. of America, aka MagCorp, after a lawsuit alleged he forced the company into bankruptcy to help pay for his palatial Sagaponack home.

2024

Lead Poisoning Scandal

Facing lawsuit related to his company's alleged failure to reduce lead emissions in La Oroya, Peru.