Derek M. Martisus was named a vice president and quantitative analyst at Dwight Asset Management.
He replaces Tsana Nobles, who left the firm, according to a news release. Spokeswoman Jeanne Chenoweth couldn't immediately be reached for further details. Efforts to reach Ms. Nobles were unsuccessful.
Mr. Martisus was an actuarial consultant at insurance broker and risk adviser Marsh Management Services, according to the news release.
Marsh spokesman Anand Poola couldn't immediately say whether Mr. Martisus' position would be filled.