Mercer Acquires O’Brien

INVESTMENT MANAGEMENT DEALS BLOG

July 7, 2025

On July 1, 2025, Mercer Global Advisors announced its acquisition of O’Brien Wealth Partners.

Mercer Global Advisors (“Mercer”) announced, on July 1, 2025, its acquisition of O’Brien Wealth Partners (“O’Brien”). Under the terms of the transaction, O’Brien’s team will join Mercer. Further terms of the deal were not disclosed.

Mercer, based in Denver, is a registered investment advisor that provides fee-based investment management, financial planning, family office, retirement benefits and distribution planning, estate and tax planning, insurance solutions, and corporate trustee and trust administration services. As of April 2025, Mercer had approximately $70 billion in assets under management.

O’Brien, based in Waltham, Massachusetts, is a registered investment advisor offering comprehensive wealth management and planning services to high-net-worth individuals, families and nonprofits. As of April 2025, O’Brien had approximately $1.1 billion in assets under management. Colchester Partners served as the exclusive financial advisor to O’Brien.

To read the press release: please click here.

The opinions expressed are those of the author(s) and do not necessarily reflect the views of the firm or its clients, or any of its or their respective affiliates. This article is for general information purposes and is not intended to be and should not be taken as legal advice.