Ira Rennert

Ira Leon Rennert
Born	(1934-05-31) May 31, 1934 United States
Occupation(s)	Entrepreneur, businessman
Known for	Chairman and CEO of Renco Group

Ira Leon Rennert (born May 31, 1934) is a prominent American billionaire entrepreneur who holds the positions of chairman and CEO at Renco Group. As of November 2024, Forbes valued his net worth at approximately US$3.8 billion.

Early life

Rennert was born to immigrant parents from Poland and Romania. He completed his undergraduate studies at Brooklyn College in 1954 and went on to obtain a master's degree from the New York University Stern School of Business in 1956, where he later contributed as a member of the board of overseers.

Early career

Rennert began his professional journey as a credit analyst on Wall Street in 1956. He subsequently became a partner at Rubin, Rennert & Co. before establishing I. L. Rennert & Co. in 1962. The firm encountered regulatory challenges due to inadequate capital levels, leading to reprimands from the National Association of Securities Dealers in both 1962 and 1963. Ultimately, Rennert’s securities license was revoked in November 1964, effectively barring him from participating in the securities sector. A company representative noted that although efforts were made to raise sufficient capital, adverse market conditions caused repeated breaches of net capital requirements, culminating in the firm's closure.

Junk bond financing

Michael Milken, while working as a bond trader at Drexel Burnham Lambert, innovated the market for high-risk, high-yield bonds aimed at financially distressed firms. Integrated Resources successfully secured $2 billion through such junk bonds under Milken’s guidance but eventually collapsed amid scandal, defaulting on $1 billion in 1989. Rennert, serving as an external board member, avoided direct repercussions and began independently raising junk bonds to fund acquisitions for the Renco Group.

Rennert’s approach centered on purchasing underperforming companies financed through junk bond issuance, often extracting significant dividends for himself. Since 1995, subsidiaries of Renco have raised approximately $1.1 billion via high-yield bonds, with around $322 million (29%) paid out to Renco Group according to SEC disclosures. This strategy was supported by major institutional investors such as John Hancock Funds LLC and Putnam Investment Management LLC, allowing Rennert to limit his personal capital contributions. For instance, when acquiring AM General in 1992, only $10 million was required as a down payment. In 1994, Renco acquired the Doe Run Company from Fluor Corp. for $52 million in cash plus $60 million in debt payable over eight years. Doe Run expanded its operations by purchasing a lead smelting facility in Peru for $247 million in 1997, partially funded by issuing $305 million in junk bonds during 1998 to finance additional lead mining ventures in Peru and Missouri. From 1998 onward, Renco shifted most of its financing toward bank loans.

WCI Steel

In 1988, Renco acquired a steel manufacturer located in Warren (Ohio) from the bankrupt LTV Steel Co. for $140 million and rebranded it as WCI Steel Inc. To finance this acquisition, Rennert issued $300 million in bonds and paid out $108 million in dividends to Renco Group. In 1998, WCI Steel Holdings Inc. was established as the holding company for WCI and issued $120 million in junk bonds while distributing an additional $100 million dividend to Renco.

At the time of bankruptcy proceedings, the Pension Benefit Guaranty Corporation (PBGC) estimated a pension deficit of $117 million. Despite WCI’s failure, Renco assumed responsibility for maintaining the pension plan with ongoing assistance from WCI itself. Reports suggested that the PBGC considered placing liens on Rennert’s personal assets to ensure pension benefits for steelworkers were safeguarded. Eventually, Harbinger sold WCI to Russian steel producer Severstal.

MagCorp/US Magnesium

In 1989, Renco purchased the largest magnesium producer in the United States, located in Utah. Magnesium Corp. extracts minerals from the Great Salt Lake and processes magnesium utilized in a wide range of products, from military ordnance to bicycles. In 1996, Renco established Renco Metals, Inc. as a parent company for Magnesium Corp. and issued bonds totaling $150 million. By the end of that year, the company distributed $90 million in dividends to Renco.

The Department of Justice initiated legal action against Magnesium Corp. in 2001, alleging numerous breaches of hazardous waste regulations and criticizing Rennert’s financial extraction through the bond issuance, which purportedly rendered the company insolvent. This litigation persisted until 2007 when the court ruled in favor of Renco.

On August 17, 2010, the 10th Circuit Court of Appeals reversed a 2007 ruling that had found no illegal waste disposal at the US Magnesium plant in Rowley, Utah. The original lawsuit filed by the DOJ in 2001 accused the company of violating the Resource Conservation and Recovery Act (RCRA), which governs waste management practices. Renco continues to operate US Magnesium, which remains the sole magnesium manufacturer within the United States.

On September 3, 2008, the Environmental Protection Agency proposed adding the US Magnesium site to the National Priorities List (NPL), designating it as a Superfund site. US Magnesium challenged this listing in November 2009; however, on January 14, 2011, the United States Court of Appeals upheld the EPA’s decision to include the facility on the NPL.

AM General

In 1993, Renco acquired AM General from LTV Corporation as part of LTV’s bankruptcy restructuring efforts. The transaction involved an upfront cash payment of $67.5 million with additional payments scheduled over a decade. AM General specializes in manufacturing vehicles for industrial, military, and governmental applications, including producing the Humvee. On August 20, 2004, Ronald Perelman's MacAndrews & Forbes Holdings purchased a 70% ownership stake in AM General from Renco for close to $1 billion.

United States

The environmental history of The Renco Group in the U.S., particularly through its Doe Run operations, reflects a trajectory of change over time. In 1998, the EPA ranked Renco's assets as the tenth-largest polluters nationwide, largely due to emissions from US Magnesium (formerly MagCorp) in Utah, which was acquired by Renco in 1989 when emissions peaked at approximately 119,000 tons annually. By that year, emissions had been halved and were further reduced by 97% by 2005.

In 2001, both the Justice Department and EPA filed lawsuits against Renco seeking nearly $1 billion in penalties related to alleged toxic waste disposal by MagCorp near the Great Salt Lake. MagCorp asserted it was exempt from hazardous waste regulations and subsequently filed for Chapter 11 bankruptcy protection, enabling reorganization that relieved it from prior liabilities. The EPA’s enforcement action concluded in 2007 with a federal judge ruling favorably for Renco and MagCorp/US Magnesium.

Currently, US Magnesium is recognized as the third-largest magnesium producer globally. Since 2000 (and since acquisition), it has achieved a reduction in emissions exceeding 90% (97%), marking the most significant single-site hazardous air pollutant decrease recorded since the Toxic Release Inventory program began in 1987. Efficiency enhancements have also lowered carbon dioxide output by approximately 100,000 tons annually. The facility earned EPA’s Climate Protection Award in 2004 and received recognition from the Manufacturing Extension Partnership for environmental stewardship in 2006.

Doe Run’s lead smelting facility located in Herculaneum, Missouri faced environmental scrutiny due to community reports linking toxic emissions to childhood lead poisoning incidents. In response, regulatory agencies including EPA and state authorities mandated remediation efforts addressing soil contamination exceeding lead safety thresholds. Doe Run invested over $10 million to acquire affected residences and conducted soil replacement alongside home decontamination projects. By early 2007, Doe Run met all National Ambient Air Quality Standards requirements. A consent decree finalized that year incorporated operational permits for continued smelter functioning. In 2013, Doe Run terminated lead smelting activities at its Missouri site, thereby ending associated emissions there.

Peru

Doe Run Peru, a subsidiary of the Renco Group, managed a smelting facility in La Oroya, Peru until 2010 and encountered environmental difficulties far exceeding those experienced at Herculaneum. Established in 1922, the La Oroya smelter was previously operated by the Peruvian government entity Centromin, which lacked environmental safeguards. Following legislation that imposed stricter environmental requirements unattainable by Centromin, the plant was sold to Doe Run in 1997.

Under the terms of the transaction, Centromin agreed to finance cleanup efforts for pollution generated before 1997, while Doe Run Peru committed to investing heavily in environmental improvements initially projected at $100 million. In reality, Doe Run spent over $300 million on remediation but still did not comply with Peru’s environmental regulations. La Oroya continues to suffer from severe pollution; the Blacksmith Institute classified it among the top ten most contaminated locations globally, alongside sites such as Chernobyl, Ukraine. In 2007, air concentrations of arsenic were found to be 85 times above safe thresholds, cadmium levels were 41 times higher, and lead exceeded limits by 13 times. Studies conducted by St. Louis University revealed that 97% of children living nearby exhibit mental and physical health issues attributed to exposure to pollution.

For Renco, Doe Run Peru proved to be an unprofitable venture, generating considerable adverse publicity without yielding financial gains or resolving environmental problems. Presently, the company is involved in a conflict with the Peruvian government over Centromin’s purported failure to fulfill its pollution remediation responsibilities.

Philanthropy

Ira Rennert holds the #818 position on Forbes magazine’s global billionaire rankings and is listed as #29 on The Jerusalem Post’s compilation of the World’s 50 Wealthiest Jews.

Together with his wife Ingeborg, Rennert has made significant donations to numerous organizations. Their philanthropy includes a $5 million gift establishing the Wiesel Center at Boston University, $250,000 contributed to the Lincoln Center, and over $1 million given to the World Trade Center Memorial. They founded the Rennert Entrepreneurial Institute at Yeshiva University's Sy Syms School of Business and endowed academic chairs across various institutions: Jewish studies at Barnard College, Aging Research and Stem Cell Biology at Albert Einstein College of Medicine, the Ira Rennert Professorship of Business at Columbia University, the Ira Leon Rennert Chair in Entrepreneurial Finance at New York University, and the Ingeborg Rennert Center for Jerusalem Studies at Bar-Ilan University.

The Rennerts also contributed to building The Western Wall Heritage Foundation’s visitor center in Jerusalem, which bears their name as The Ingeborg and Ira Leon Rennert Hall of Light. Their family gifted The Jonas Mendel Rennert Memorial Chapel located at the Center for Jewish History. They have supported Rabbi Aharon Bina’s yeshiva, Yeshivat Netiv Aryeh, and donated hundreds of Torah scrolls to communities throughout Israel. Furthermore, they financed a new mikvah at the Fifth Avenue Synagogue, completed in May 2010.

Political involvement

Rennert is a prominent contributor to the Republican Party, having supported figures such as John McCain and Rudy Giuliani among others. Alongside his wife, he contributed $900,000 to Donald Trump's 2020 presidential campaign.

Family

Rennert is wed to Ingeborg Hanna Rennert, who previously worked as an airline ticket agent and converted to Judaism. She holds the position of Director at the Lincoln Center for the Performing Arts. Together, they have three children:

• Tamara Rennert Winn, who is married to Randall Winn, co-founder of Capital IQ (now known as S&P Capital IQ)
• Yonina Rennert Davidson
• Ari Rennert

He is also a member and honorary chairman of the Orthodox Fifth Avenue Synagogue.

Residences

Rennert became the subject of controversy after building a beachfront estate in Sagaponack, New York, considered one of the largest private residential compounds in the country. Initial local speculation suggested it might be a spa, hotel, or religious center; Rennert refuted these claims, and the local newspaper subsequently issued an apology. He named this property Fairfield Pond, inspired by the neighboring water body.

Situated on the Atlantic Ocean coastline, the estate covers . The combined structures exceed in size, featuring a main residence with an Italianate style facade, 29 bedrooms, and 39 bathrooms. Amenities include a Mediterranean tile roof, a formal dining area, basketball court, bowling alley, two tennis courts, two squash courts, a carousel, expansive swimming pools, and a $150,000 hot tub. In 2007, property taxes amounted to $397,559, indicating an estimated market value near $198 million—ranking it among the most valuable private homes in the United States.

In addition to his Sagaponack estate, Rennert owns a duplex on Manhattan's Park Avenue and a home located in Israel. He previously resided in Atlantic Beach, NY.

See also

• List of investors in Bernard L. Madoff Securities

Sources

• Michael Shnayerson. "Devastating Luxury." Vanity Fair. July 2003.
• James Ridgeway and Jeffrey St. Clair. A Pocket Guide to Environmental Bad Guys, (New York: Thunder's Mouth Press).

External links

• Rennert home in Sagaponack on Google Maps