Polymarket appoints ex-Goldman Sachs partner amid three CFTC investigations
Polymarket has hired Lisa Mantil, a nearly three-decade Goldman Sachs veteran, to lead institutional growth just as the CFTC runs three active investigations into the platform and New York pursues it in court. The hire signals Polymarket is betting on block-trade volume from Wall Street even as regulators, state attorneys general and Congress sharpen scrutiny of prediction markets.
- Lisa Mantil spent nearly three decades at Goldman Sachs, most recently as global head of its ETF accelerator program.
- Polymarket is valued at roughly $21 billion after raising $1 billion from 1789 Capital and Intercontinental Exchange.
- CFTC Chairman Michael Selig has approved three separate probes this year into Polymarket’s Biden, Iran and Google-themed contracts.
- $21B Polymarket’s valuation following its $1 billion capital raise
- 3 active CFTC investigations opened into Polymarket contracts this year
- 97% win rate flagged across 152 accounts on Polymarket’s war markets
Polymarket confirmed that Lisa Mantil will serve as head of institutional growth. Mantil left Goldman Sachs as a partner and global head of the bank’s ETF accelerator, an internal program that helps clients bring new investment products to market. Her hiring adds to a run of senior appointments that already includes CFO Warren Jenson, formerly of Amazon, Delta Air Lines and Nielsen.
Lisa Mantil Calls Prediction Markets an “Exploding Asset Class”
Founder and CEO Shayne Coplan framed Mantil’s Wall Street network as the deciding factor in her hire, betting her Goldman contacts can pull institutional capital into a market still dominated by retail traders.
Help shape an exploding asset class at an inflection point in its development.
Lisa Mantil, head of institutional growth, Polymarket
The company launched a US-regulated exchange in May and has since drawn comparisons to how tokenized markets are courting traditional finance, a theme playing out elsewhere as Aave accepts Coinbase-issued tokenized stocks as collateral on Base.
Mantil’s mandate is to bring block-trade volume to a sector where large, privately negotiated positions remain rare. Rival Kalshi executed the space’s first block trade in April 2026, a deal designed to move sizable positions without disturbing market prices; Polymarket’s international platforms followed with their own block trades roughly a month later.
Institutional participation has been slowed partly by an unresolved jurisdictional fight over who regulates sports-related event contracts, state gaming commissions or the CFTC.
CFTC Runs Three Probes Into Biden, Iran and Google Contracts
The scrutiny Mantil steps into is substantial. The House Oversight Committee and the CFTC are both scrutinizing the activities of prediction markets amid whispers of insider trading. Selig has personally approved three CFTC orders this year covering contracts tied to former President Joseph Biden’s pardons, Iran-related event markets, and Google-themed contracts from July.
Polymarket has not been directly charged. Coplan points to proprietary surveillance software built by a former FBI official and says the firm has referred dozens of flagged accounts to the Department of Justice.
Independent monitoring tells a more mixed story. The Anti-Corruption Data Collective identified 152 accounts that generated about $8 million on war-related markets at a 97% win rate, a hit rate that would be extraordinary in any liquid financial market. The pattern echoes concerns raised in past investigations into how contracts tied to geopolitical events like Iran can attract informed trading. One case has already produced criminal charges: the Project On Government Oversight said Special Forces soldier Gannon Ken Van Dyke used classified information to earn more than $400,000 on a Polymarket position.
New York and POGO Push for Tighter Rules Before NDAA Vote
The legal pressure extends beyond federal regulators. New York Attorney General Letitia James and Governor Kathy Hochul have sued Polymarket, calling it an unlicensed gambling operation; Polymarket countersued in federal court, arguing the CFTC holds exclusive authority and that federal law preempts state gambling statutes.
Two bills sit before the New York State Assembly, including the ORACLE Act from State Senator Joseph Addabbo Jr., which would bar users under 21 from prediction markets and ban certain contract categories outright.
In Washington, POGO said it wants the Senate Armed Services Committee to rewrite Section 1801 of the fiscal 2027 National Defense Authorization Act to ban all Department of Defense-related trades on prediction platforms, not just trades above $250 built on material nonpublic information. That threshold, POGO argues, leaves smaller but still improper trades unregulated. The scrutiny mirrors broader regulatory pressure on crypto-adjacent platforms, following actions such as the SEC’s fraud charges against Cryptoaiml and TSAI earlier this year.
The CCS read. Mantil’s hire is less about Goldman’s brand than about who she can call to build block-trade infrastructure Polymarket lacks. Institutional desks will not commit size to a venue facing an active state lawsuit and three open CFTC probes, so her real test is whether Wall Street counterparties show up before those cases resolve, not whether Polymarket’s valuation climbs further.
The Senate Armed Services Committee has not yet acted on POGO’s request to rewrite Section 1801 ahead of the fiscal 2027 NDAA, and Polymarket’s countersuit against New York remains pending in federal court, leaving both the platform’s regulatory status and Mantil’s institutional pitch unresolved.
Original reporting: cryptopolitan.com
