Alleghany’s CapSpecialty CEO, president, chair resigns after 20 years

Alleghany subsidiary CapSpecialty’s chief executive officer (CEO), president and chair has stepped down after a career at the company spanning more than two decades.

Jack Sennott will step down from his roles at the end of August. He will be replaced by Adam Sills, currently CapSpecialty’s head of specialty underwriting, as president and CEO.

Sills has served as CapSpecialty’s head of specialty underwriting since 2019, where he has been responsible for the production and profitability of the company’s underwriting operations for professional liability, healthcare and specialty casualty, as well as marketing and distribution and operations.

Sills joined the company in 2013, after spending five years at Allied World and four years at Darwin Professional Underwriters. He started his career as a D&O underwriter for the Travelers.

Joe Brandon, president and CEO of  Alleghany Corporation, said: “Over the course of the past 20 years, Jack held several important roles for Alleghany including CFO of Darwin Professional Underwriters, CFO of  Alleghany and most recently CEO of CapSpecialty. In each role, Jack made a meaningful difference and added significant value. I want to thank Jack for his leadership and many contributions, and in particular his leading CapSpecialty’s transformation to a preferred specialty casualty and surety insurance provider for small and mid-sized businesses across the U.S. We wish Jack all the best in his future endeavors.”

Sennott commented: “After being a part of  Alleghany for most of the past 20 years, it is time for me to write a new chapter in my career. It has been my privilege to serve as CEO of CapSpecialty and in my prior roles for  Alleghany. I am very proud of what we have accomplished at CapSpecialty and I know the company will not skip a beat with Adam at the helm. I wish the team every success.”

Brandon added: “We are pleased to appoint Adam Sills as CEO and President. Adam will do a superb job leading CapSpecialty after having been a key member of the senior management team for almost nine years. He is an experienced and disciplined underwriter whose deep knowledge of the company and strong industry relationships will serve CapSpecialty and its clients well.”

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