Chubb Ltd. appointed a new treasurer, replacing a long-time executive. The Hanover Insurance Group expanded its specialty leadership team.


Chubb Limited appointed Mark Hammond as treasurer, effective March 1.

Currently, Hammond serves as executive vice president and chief financial officer for the company’s Europe and Eurasia & Africa regions. In his new role, Hammond will be responsible for Chubb’s corporate and credit banking functions worldwide, financial and capital modeling, rating agency relationships, tax planning and compliance, credit management, reinsurance security analysis, corporate insurance and treasury operations globally.

Hammond has more than 30 years of experience in insurance and public accounting. Before ACE’s acquisition of Chubb in January 2016, he was chief financial officer, European Group for ACE, a position he held since January 2012. Hammond joined the company’s Combined Insurance business in Chicago in 2009, where he served as executive vice president, chief financial officer.

Ken Koreyva, a Chubb Group senior vice president who has served as treasurer since he joined the company, then ACE, in 2002, will step down from his current position and assume a new senior advisory role in the company’s global finance organization focused on operational efficiency and change management. Koreyva will work closely to support and advise Hammond on the leadership transition of the treasurer role.

Hammond will report to Philip Bancroft, executive vice president, Chubb Group and chief financial officer, Chubb Limited.


The Hanover Insurance Group expanded its specialty leadership team to enhance its focus on growth opportunities and further drive value with the company’s independent insurance agent partners.

As part of this expansion, The Hanover appointed Steven Mills president of the company’s excess and surplus (E&S) business. In this role, Mills will enable the company to deliver E&S products and services for property/casualty businesses, making it easier for The Hanover’s agent partners to serve the needs of their clients. Mills will help the company expand its existing E&S capabilities, including building a new retail operation for the company’s key retail agent partners, enabling more efficient placement of E&S business.

Mills most recently serving as senior vice president and unit head for the primary casualty unit of IFG Companies. Before that, Mills spent more than 13 years at AIG in various leadership roles, as well as in field and home office underwriting positions. He also held roles at Liberty Mutual, Citizens Insurance Company, CNA Reinsurance Company and Continental Insurance Company.

The Hanover has also promoted James Kawiecki to president of surety, responsible for both contract and commercial surety. Kawiecki previously served as vice president of contract surety for the company. Kawiecki built a strong underwriting culture and a committed, experienced team that has driven strong performance in recent years.

In addition, John Rowedder has been promoted to vice president of contract surety at The Hanover and will continue to serve in his current role as chief underwriting officer for contract surety as well.

To complement the specialty leadership team, the company has added two new roles. Jon Martin has joined The Hanover as its new vice president, distribution management, professional lines. Prior to The Hanover, Martin served as vice president, sales and distribution at Berkley FinSecure. Martin will be responsible for new business initiatives across the company’s management liability, professional liability and healthcare lines of business.

Christopher Zaneski has been promoted as the company’s new vice president, distribution management, specialty property and casualty lines. Zaneski previously served as assistant vice president, distribution management, Hanover Specialty Industrial (HSI) at The Hanover and, in this new role, will be focused on developing new, collaborative business opportunities across the company’s specialty industrial property, marine and E&S property and casualty businesses.

Souces: Chubb, The Hanover Insurance Group