Allianz SE said its Fireman’s Fund unit in the U.S. hired Jennifer Celmer from American International Group Inc. to lead sales of personal insurance products to wealthy individuals.

“Celmer brings a deep and broad expertise in high-net- worth underwriting,” Fireman’s Fund said yesterday in a statement.

Fireman’s Fund is among insurers that have been seeking to expand businesses that cater to the richest clients by protecting yachts, fine art and wine collections. The unit of Munich-based Allianz, which also sells coverage to business clients, hired Erik Matson from AIG as commercial insurance field executive this month.

Matson was AIG’s regional president of the Americas for small and medium commercial lines, Fireman’s Fund said. Celmer worked for 12 years at New York-based AIG’s private client group, and most recently led underwriting in the eastern zone, according to the statement. She was previously an underwriter at Chubb Corp., Fireman’s Fund said.

Fireman’s Fund hired Robert Haibi last year to oversee personal-lines distribution, focusing on the high-net-worth market. He was previously a senior vice president at AIG’s property-casualty unit.

Jim Ankner, an AIG spokesman, didn’t respond to an e-mailed request for comment.

Navigators Group Inc. hired Glen Bronstein from AIG as chief claims officer for its U.S. underwriting agency subsidiary, New York-based Navigators said yesterday in a statement. He had worked at AIG for 19 years.

Warren Buffett’s Berkshire Hathaway Inc. hired at least four AIG executives to lead a push into commercial insurance. They include David Bresnahan, David Fields, and Peter Eastwood.