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Thu, Jun 18, 2026
Daily briefThursday, June 18, 2026
15 deals tracked · Updated 9:37 AM PDT·Full deal sheet
Platform·Healthcare/Pharma Services·June 17, 2026

Flexstone Partners acquires Glouston Capital Partners

The transaction combines Flexstone’s primary fund and co-investment capabilities with Glouston’s middle-market secondary expertise, creating a platform with more than $15 billion in assets under management.

Takeaways

  • Glouston Capital Partners is a asset manager specializing in middle-market private equity secondaries.
  • Flexstone Partners and Glouston Capital Partners are classified as a platform transaction.
  • The target serves institutional investors across North America.
BuyerFlexstone Partners
TargetGlouston Capital Partners
SponsorFlexstone Partners
TypePlatform
GeographyNorth America
IndustryHealthcare
Sub-sectorPharma Services

Flexstone Partners, the private markets affiliate of Natixis Investment Managers, has agreed to acquire Glouston Capital Partners, a Boston-based asset manager specializing in middle-market private equity secondaries.

The combination creates a global platform spanning North America, Europe, and Asia with over $15 billion in assets under management.

Glouston manages more than $3.4 billion in assets and has invested over $2.9 billion across approximately 290 secondary transactions since inception.

Flexstone contributes roughly $12 billion to the combined firm, which will operate under the Flexstone Partners name from offices in New York, Boston, Paris, Geneva, and Singapore.

Upon closing, Glouston’s six partners will join Flexstone as managing partners, and both groups will contribute additional equity capital.

Existing fund structures, limited partner agreements, and investment mandates remain unchanged.