Polymarket has hired Lisa Mantil, a nearly three-decade veteran of Goldman Sachs, as its new head of institutional growth. The appointment, announced on Tuesday, aims to leverage Mantil’s extensive experience in guiding institutions through the adoption of new products and markets. Most recently serving as a Goldman partner and global head of the bank's ETF accelerator, Mantil stated that joining Polymarket offers a rare opportunity to shape an exploding asset class at a critical development inflection point.

This hire follows the official launch of Polymarket’s U.S. exchange in May and continues a broader expansion strategy involving recent executive appointments, including Warren Jenson as chief financial officer earlier this month. While prediction market volumes have surged primarily due to retail interest in sports-related offerings, platforms are increasingly seeking institutional liquidity. Despite early-stage adoption and ongoing regulatory disputes with states over oversight rights, competitors like Kalshi have already completed block trades. Polymarket’s international platform conducted its first block trade one month after Kalshi’s debut, and reports indicate discussions regarding similar capabilities on its domestic U.S. exchange.