Insurtech MGA Ledgebrook has appointed Christopher Grether (pictured above) as senior vice president of strategy and reinsurance, the company announced.
Grether joins the firm after more than a decade in reinsurance broking, most recently serving as senior vice president at Gallagher Re in San Francisco.
In his new role, Grether will be responsible for advancing Ledgebrook’s reinsurance strategy and contributing to broader growth initiatives. He brings experience across several reinsurance and brokerage firms, including Gallagher Re and Willis Re, with a career that has included both domestic and international assignments.
Grether held multiple leadership roles at Gallagher Re, including senior vice president from June 2024 to May 2025, and vice president from March 2021 to June 2024. Prior to the firm’s integration under Gallagher, he worked at Willis Re for nearly four years, where he advanced from treaty analyst to assistant vice president.
Earlier in his career, Grether held internship positions at Guy Carpenter and JLT Group, gaining exposure to property and casualty treaty reinsurance placements in both the U.S. and London markets.
Grether holds a degree in finance from the University of Northern Iowa, where he participated in the finance club and intramural sports. He also attended Northwestern College and was a member of its nationally ranked golf team. He has earned the Associate in Reinsurance (ARe) designation from The Institutes.
Based in the San Francisco Bay Area, Grether steps into the new role as Ledgebrook continues to expand its presence in the reinsurance space.
“With his experience and industry knowledge, Chris will play a key role in driving our continued growth. Welcome aboard, Chris — we're excited to have you join us,” Ledgebrook said in a LinkedIn post.
The Boston-based insurtech was founded in 2022 by Gage Caligaris, a former actuary and executive at Liberty Mutual. The company focuses on the excess and surplus (E&S) insurance market.
Ledgebrook has raised approximately US$50 million since its inception. In April 2023, the company secured US$4.6 million in a SAFE round led by Markd, bringing its total funding at that time to US$8.8 million.
This was followed by a US$24 million Series A round in March 2024, led by American Family Ventures, and a US$17 million Series B round in September 2024, led by Duquesne Family Office and The Stephens Group.
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