Mercer Advisors Acquires O'Brien Wealth Partners

July 1, 2025

Mercer Global Advisors (Mercer Advisors) has acquired Waltham, Massachusetts–based O'Brien Wealth Partners, adding approximately $1.1 billion in client assets and a 14-person advisory team led by Jill Ann Fopiano. The deal deepens Mercer's Greater Boston footprint and provides the O'Brien team access to Mercer's broader family-office, tax and estate planning capabilities.

Buyers
Mercer Global Advisors (Mercer Advisors)
Targets
O'Brien Wealth Partners
Sellers
Jill Ann Fopiano
Location
Massachusetts, United States
Transaction Type
Buyout

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