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Mercer acquisition brings 'missing link' to AltamarCAM - PEI Private Equity

Reported by Privateequityinternational
Mar 23, 2026· 2 min read
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Key Takeaways
  • • Mercer, the investment consulting arm of Marsh & McLennan, will acquire 100 percent of AltamarCAM, the Madrid-based specialist private markets manager with approximately €20 billion (about $23 billion) in assets under management, according to a spokesperson for AltamarCAM cited by Private Equity International.
  • • AltamarCAM's secondaries capabilities were a key draw at a time of heightened investor interest in liquidity, according to Mercer's Michael Dempsey in a Q&A with PEI.
  • • The deal is expected to significantly expand Mercer's private markets platform by adding expertise in secondaries, co-investments and related solutions, per deal coverage from law firms and trade publications.
  • • The acquisition is viewed as evidence of Marsh & McLennan leaning further into private markets, an area where peers such as Aon are also expanding.
Summary
Mercer, the consulting and investment solutions unit of Marsh & McLennan, has agreed to acquire 100 percent of AltamarCAM, a Madrid-based specialist private markets asset manager and solutions provider. According to a spokesperson for AltamarCAM cited by Private Equity International, the transaction gives Mercer full ownership of a firm with approximately €20 billion (about $23 billion) in assets under management.

In a Q&A with PEI, Mercer's Michael Dempsey, alongside Jose Luis Molina, said AltamarCAM's secondaries capabilities were particularly attractive at a time of heightened interest in liquidity. Coverage of the deal from advisers and trade publications describes the acquisition as adding expertise in secondaries, co-investments and related areas, which will significantly expand Mercer's private markets platform. AltamarCAM will be integrated into that platform once the transaction closes.

Market commentary has framed the deal as a sign that Marsh & McLennan is deepening its commitment to private markets, an area where competitors such as Aon are also building out capabilities. AltamarCAM's growth equity investor has described a full exit from its stake through the sale to Mercer. The PEI article is the primary source for the Q&A details; specific deal terms beyond ownership and AUM were not disclosed in the material reviewed.

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Sources

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Privateequityinternational Mercer acquisition brings 'missing link' to AltamarCAM - PEI Private Equity