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Former Amazon CFO Warren Jenson Joins Polymarket as Prediction Market Scales US Exchange

Polymarket has hired former Amazon finance chief Warren Jenson as its first CFO, adding a veteran executive as the prediction market expands its US exchange and faces continued legal questions over sports event trading.
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Polymarket has appointed former Amazon CFO Warren Jenson as its first chief financial officer, adding a veteran finance executive as the prediction market looks to expand its US exchange and broader financial operations.

The company said Jenson will oversee financial operations, capital strategy, fundraising strategy, and long-range planning. Founder Shayne Coplan announced the hire on X, while Jenson said Polymarket had created “a massive new global market category.”

Jenson brings blue-chip finance experience

Jenson previously held CFO roles at Amazon, NBC, Delta Air Lines, Electronic Arts, and Nielsen, according to the company announcement reported by Casino.org. Coplan highlighted Jenson’s Amazon background in particular, saying he helped build “the financial framework for modern marketplaces.”

The hire comes as Polymarket pursues further growth in the US. The source report noted that Polymarket US has had its own CFO, Ed Lynch, since November 2025, while Jenson’s appointment is tied to the wider business as it scales.

Polymarket growth comes amid legal uncertainty

The executive move lands during a period of rapid volume growth for the platform. In March 2026, Polymarket surpassed $10 billion in notional trading volume for the first time in a single month. The company reported $10.6 billion in traded shares globally that month, and its first-quarter 2026 volume rose more than 90% from the prior quarter to about $26.2 billion. Polymarket US accounted for roughly $700 million in March trades.

That growth is happening while sports prediction markets remain under legal and regulatory scrutiny in the US. According to the source report, New Jersey formally petitioned the Supreme Court on Sept. 2 to determine whether platforms such as Polymarket can offer trading on sports. The broader dispute centers on whether those products fall under Commodity Futures Trading Commission oversight or should instead be treated under state gambling laws.

For players and market watchers, Jenson’s hiring does not change product availability on its own. What it does signal is that Polymarket is adding senior financial leadership at a time when its US business is growing and the legal framework for sports event trading remains unsettled.

Source: As reported by casino.org.

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Tyler Andrews

Digital Content Strategist

Tyler Andrews has covered sports, art and entertainment in the US and abroad. He began his career covering Southern California sports before branching into the national sports market. He spent four years in Barcelona, covering FC Barcelona football as well as art and entertainment in the Catalan capital. Tyler, a Las Vegas native, is a graduate of both Cal State Long Beach and Chapman University. He currently resides in Dallas with his wife and family where, when he’s not chasing after his two daughters, he goes to concerts with his wife, collects comic books and roots for the Vegas Golden Knights.

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