Louisiana’s largest medical malpractice insurer will return around $5 million to more than 6,000 of its policyholders in Louisiana and Arkansas in 2014.

The dividend is the seventh that Metairie-based LAMMICO has made to policyholders since 2008. Policyholders will receive 10.5 percent of their 2013 premiums. LAMMICO, formerly known as Louisiana Medical Malpractice Co., adopted its new brand name on Dec. 2.

The size of the dividend is based on the company’s claims experience. In 2013, the company determined the cost to pay those claims was lower than originally estimated.