Colin MacNaught, Massachusetts deputy treasurer for debt management, will step down March 31.
Matthew Sheaff, press secretary to state Treasurer Deborah Goldberg, confirmed the news on March 24.
MacNaught's immediate plans are unknown.
Goldberg succeeded Steven Grossman as treasurer in January after Grossman ran unsuccessfully for governor.
She named Maureen Godsey Valente as deputy for debt management in January. Valente, a former Sudbury town manager, also oversees the Massachusetts School Building Authority and Clean Water Trust.
MacNaught, a Boston native and former minor-league baseball pitcher, joined the Massachusetts Treasury in January 2008. Previously, he worked as an associate director for Standard & Poor's, where he evaluated and rated several East Coast states and was a specialist in S&P's interest rate swap sector. He earned his master's degree in public policy degree from the Harvard Kennedy School of Government.
Under Grossman, MacNaught ran point on the commonwealth's bond deals.
He structured and priced the Accelerated Bridge and MassDirect Notes programs, winners of The Bond Buyer's national deal of the year awards in 2011 and 2014, respectively. In 2013, a new Massachusetts investor website received an industry contribution award from the National Federation of Municipal Analysts. In addition, MacNaught helped launch Massachusetts' annual investor conference in Boston.
In September 2013, S&P upgraded Massachusetts' general obligation bonds to AA-plus. Fitch Ratings and Moody's Investors Service assign AA-plus and Aa1 ratings, respectively.
