Mercer (Marsh McLennan) Acquires Cardano

Mercer (Marsh McLennan) Acquires SECOR Asset Management

May 2, 2025

Wealth Management

Mercer, a business of Marsh McLennan, completed the acquisition of SECOR Asset Management to expand its investment capabilities for large institutional clients. The deal brings SECOR’s team of more than 40 professionals and its bespoke portfolio and fiduciary solutions into Mercer’s global investment platform; terms were not disclosed.

Mercer (Marsh McLennan) Acquires Hexarem

November 4, 2025

Professional Services

Mercer, a business of Marsh McLennan, has acquired Hexarem, a Montreal-based boutique human resources consulting firm specializing in executive compensation and governance advisory services. The acquisition strengthens Mercer's executive compensation capabilities and expands its presence in Canada; terms were not disclosed.

Mercer (Marsh McLennan) Acquires Advance Asset Management Limited and Completes Merger of BT Super into Mercer Super Trust

April 3, 2023

Financial Services

Mercer, part of Marsh McLennan, completed the merger of BT Super into the Mercer Super Trust and announced the acquisition of Advance Asset Management Limited, expanding its multi‑manager investment capability in Australia. The combined Mercer Super Trust becomes one of Australia’s largest super funds with ~850,000 members and approximately A$63 billion in assets under management, while the AAML deal broadens Mercer’s local investment management offerings.

Mercer (Marsh) to Acquire AltamarCAM to Expand Private Markets Capabilities

March 20, 2026

Financial Services

Marsh announced that its business Mercer has agreed to acquire AltamarCAM, a private markets asset manager and solutions provider with €20 billion in assets under management. After closing, AltamarCAM will be integrated into Mercer's private markets platform to expand capabilities across secondaries, co-investments, bespoke accounts, and evergreen investment vehicles.

Mercer Advisors Acquires McConnell Financial Advisors

December 16, 2025

Wealth Management

Mercer Global Advisors (Mercer Advisors) has acquired McConnell Financial Advisors, a boutique Boise, Idaho-based financial planning firm with approximately $130 million in AUM. The deal expands Mercer’s presence across Boise and Sun Valley and bolsters its Women & Wealth-focused advisory capabilities while preserving McConnell’s relationship-driven planning approach.

Mercer to Acquire UK Business of Fundhouse

June 15, 2025

Financial Services

Mercer, a business of Marsh McLennan, announced an agreement to acquire Fundhouse’s UK business, a London-based provider of investment advisory and model portfolio services. The deal aims to enhance Mercer’s capabilities and expand its presence in the UK wealth management sector, with Fundhouse’s founder-led leadership expected to remain in place. Closing is subject to regulatory approval and is expected in the third quarter of 2025.