Arch Capital Group Ltd. (NASDAQ: ACGL) announced that Maamoun Rajeh will expand his role as president to oversee all three business segments under a single president structure. Rajeh, who previously managed the reinsurance and mortgage segments, will add responsibility for the insurance segment while continuing to report to Chief Executive Officer Nicolas Papadopoulo.

David Gansberg stepped down from his role as president and departed the company. The leadership change moves Arch from a dual-president model to a single president overseeing the insurance, reinsurance and mortgage operations.

Rajeh joined Arch in 2001 and has led the reinsurance division. He assumed responsibility for the mortgage group in 2024. "Maamoun has been integral to Arch's success since 2001 and brings a deep understanding of the Property and Casualty business," Papadopoulo said in the announcement.

The Bermuda-based company provides insurance, reinsurance and mortgage insurance globally. Arch reported approximately $26.9 billion in capital as of March 31, 2026, according to the press release. The company trades on the Nasdaq and is included in the S&P 500 Index.

"I'm grateful for this opportunity to take on this expanded role and to continue to work closely with Nicolas, the rest of Arch's leadership team and our Board of Directors," Rajeh said. He emphasized the company's global platform and underwriting capabilities in his statement.

The information was disclosed in a company press release statement.