Goldman Sachs Partner Leaves Her 27-Year Career for Polymarket

UNCLASSIFIEDGoldman Sachs Partner LeavesHer 27-Year Career forPolymarket34IMPORTANCECLOSED2NEWS MEDIA2PIECESSep 30, 2026 00:11blockboard.net

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Polymarket hired Lisa Mantil, who spent nearly 27 years at Goldman Sachs and reached partner level, as Head of Institutional Growth. The move came after Polymarket closed a $1 billion funding round and carried an estimated $21 billion valuation.

What this rests on

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Lisa Mantil left Goldman Sachs on Tuesday after nearly 27 years at the firm, where she had become a partner.
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Polymarket said Mantil’s new role is to help bring large Wall Street players to the platform.
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Polymarket named Mantil its Head of Institutional Growth after her long Goldman Sachs career.
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Polymarket’s funding round closed at $1 billion and included firms such as Intercontinental Exchange and 1789 Capital.

What it means

Polymarket’s new institutional hire affects traders and market participants who watch for more traditional finance involvement in prediction markets. Mantil’s role is aimed at bringing Wall Street players to the platform, so that is the immediate change visible to people tracking access and liquidity on the venue.

Before this move, Mantil was at Goldman Sachs, including work as a partner and global head of its ETF accelerator. After the change, she is in a role focused on institutional growth at Polymarket, while the platform itself remains the same product that closed a $1 billion funding round.

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