Independent Insurance Agents & Brokers of America appointed Charles Symington as its new president and CEO. He previously served as senior vice president for external, industry and government affairs at Independent Insurance Agents & Brokers of America. Argo Group International Holdings, Ltd appointed Marissa Prestimonico as vice president and head of New York Construction. She holds invaluable experience gained from her nearly decade-long experience in the insurance industry and a commitment to excellence and customer service. Alliant Insurance Services appointed Doug Pera as executive vice president and director within its Alliant Americas division. He served as managing director and head of corporate risk and broking in the Southeast Region for a global risk advisor, insurance and reinsurance broker. Valley Insurance Agency Alliance appointed Michael Thornton as book management coach. He previously served as foundation specialist at Valley Insurance Agency Alliance. Bold Penguin announced Andy Sand joined as vice president of operations, strategic partners. He served as vice president, head of product at Buckle Insurance. Reinsurance Association of America appointed Lee Covington as president-elect. He served as senior vice president, government affairs and general counsel at Insured Retirement Institute. Everest Reinsurance appointed Marco Schiattone as global head of financial risk. He served as product leader at PartnerRe. Insurance Quantified appointed Jeremy Johnson as the company's latest strategic advisor. He served as CEO at Protective Insurance. Sayata appointed Manny Johl to the carrier relations department as head of partnerships. He served as chief revenue officer at CoverHound. The Hanover Insurance Group, Inc. announced the following appointments:

• Stephanie E. Seibold - president of alternative markets
• Arthur J. Barrett - president of programs

Related: People on the move in the P&C insurance industry: September 1, 2023