Global insurance and reinsurance firm XL Group has appointed Mark McConico as vice president and underwriting manager of its US risk management group in Los Angeles.

In addition, the company promoted Theresa Schlageter to senior vice president and regional manager of the western zone for its US risk management business.

McConico joins the group from AON Risk Solutions where he served as vice president and casualty manager in their risk management and middle market groups.

Prior to AON Risk Solutions, McConico served for 10 years in primary casualty underwriting positions with ACE Risk Management.

McConico, who will report to Schlageter, will be responsible for the primary casualty risk management business throughout the Southwest region.

XL Group executive vice president and head of US risk management business Jay Lefkowitz said the new appointments position the company to craft primary casualty solutions that meet the complex challenges of large corporations.

The group’s insurance companies provide property, casualty, professional and specialty insurance products globally.