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Ex-Mantra secondaries head Moyne seals $180m final close for debut Seine Capital fundraise

Reported by Altassets
May 27, 2026· 1 min read
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Key Takeaways
  • • Fabrice Moyne, former secondaries head at Mantra Investment Partners, has successfully closed Seine Capital's debut fund at €180 million, exceeding its initial target.
  • • The fundraise demonstrates continued institutional appetite for experienced GP-led secondaries expertise, with Moyne leveraging his track record from a established platform to launch an independent vehicle.
  • • Seine Capital's close marks a notable exit and recapitalization event for a specialized secondaries operator entering the competitive mid-market fund landscape.
Summary
Fabrice Moyne has officially closed Seine Capital's inaugural fund at €180 million, surpassing the fund's initial fundraising target. The achievement represents a successful transition for Moyne, who previously served as head of secondaries at Mantra Investment Partners, establishing his credentials in a specialized segment of private markets.

The fundraise underscores sustained institutional capital commitments to experienced secondaries professionals launching independent platforms. Moyne's departure from Mantra and subsequent fund establishment reflects a broader trend of senior investment professionals leveraging their operational expertise and track records to establish dedicated vehicles tailored to specific market opportunities.

Seine Capital's final close positions the firm within the mid-market secondaries segment, where demand for tactical and continuation vehicles continues to attract capital from institutional LPs seeking disciplined portfolio optimization and market dislocations. The successful capital raise provides the platform with sufficient dry powder to execute its investment strategy targeting secondary market opportunities.

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Sources

1 outlet

AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Altassets Ex-Mantra secondaries head Moyne seals $180m final close for debut Seine Capital fundraise