Polymarket appoints Amazon veteran Warren Jenson as first CFO

Polymarket has appointed former Amazon finance chief Warren Jenson as its first chief financial officer, adding a seasoned public-company operator to the prediction market operator as it builds out its regulated United States exchange alongside its international platform. The appointment, announced Sept. 10, places Jenson in charge of the company’s global finance organization, capital strategy and long-range planning during a period of aggressive expansion.

Who is Warren Jenson

Jenson previously served as chief financial officer of Amazon, Electronic Arts, Delta Air Lines and NBC, giving Polymarket a finance leader with experience across technology, media, aviation and large-scale public-company operations. At Nielsen, he held the roles of president and CFO, with responsibilities spanning finance, strategy, technology, corporate development and the company’s analytics business. He later served as president of data connectivity company LiveRamp, where he managed finance and international operations.

He currently sits on the boards of Ripple, Dropbox and DigitalOcean. Polymarket identified those positions in its announcement but did not say whether his board responsibilities would change following the appointment. Jenson will report directly to founder and chief executive Shayne Coplan.

Speaking about the role, Jenson said he would establish the capital strategy and operating systems needed to help the company “move quickly at scale,” describing the opportunity ahead as “enormous.” Polymarket characterized his remit as covering both the CFTC-regulated U.S. exchange and the international prediction market platform that continues to operate globally.

No financial terms of the appointment were disclosed, and the company did not announce a separate start date or detail other planned executive changes. Polymarket also did not provide audited revenue, profit, cash-flow or user-growth figures alongside the announcement.

A regulated route back into the U.S.

The hire lands as Polymarket executes its American comeback through regulated infrastructure acquired in its 112 million dollar purchase of QCEX and QC Clearing in July 2025. QCX was registered with the Commodity Futures Trading Commission as a designated contract market, while the affiliated clearing organization provided the structure needed to clear transactions. In September 2025, CFTC staff granted QCX and QC Clearing no-action relief covering specified reporting and recordkeeping requirements.

That path was necessary because of history. American users were blocked from Polymarket’s international platform after a January 2022 CFTC enforcement case found the company had offered off-exchange event-based binary options without the required registration. Polymarket agreed to pay a 1.4 million dollar civil penalty, wind down non-compliant contracts and restrict U.S. access. The acquisition of QCEX created a separate, sanctioned route back into the domestic market, with the international platform continuing to use USDC and Polygon-based smart contracts.

Capital strategy moves to the foreground

Jenson joins as Polymarket’s financing ambitions have scaled dramatically. Intercontinental Exchange, the parent of the New York Stock Exchange, agreed in October 2025 to invest up to 2 billion dollars in the company, in a deal that initially valued Polymarket at 8 billion dollars and included rights to distribute its event-driven probability data to institutional customers. By March 2026, ICE had built a reported 1.64 billion dollar position, and CEO Jeff Sprecher said in August that the exchange operator could consider joining another financing round if it helped Polymarket complete the raise.

Separate reporting in September said Donald Trump Jr.-linked 1789 Capital had agreed to lead a 1 billion dollar funding round, with roughly 300 million dollars invested at a 21 billion dollar valuation under the reported proposal. That transaction remained a reported deal rather than a confirmed close at the time of the CFO announcement.

Bringing in a CFO with Jenson’s résumé signals Polymarket is preparing its financial infrastructure for that scale of capital and, potentially, for the scrutiny that comes with institutional investors and possible future public-market ambitions. Companies at similar valuation stages typically use a first CFO hire to formalize audits, controls and treasury operations.

Competition and context

The appointment comes amid a fierce race in prediction markets. Kalshi has expanded into perpetual-style contracts, leveraged markets and equities-adjacent offerings, while Polymarket has leaned on its liquidity, brand recognition and the ICE data partnership. The sector posted record activity through mid-2026, and both platforms have drawn attention from sports leagues, media companies and regulators.

Polymarket did not identify new contracts, launch dates or geographic availability tied to the appointment, leaving Jenson’s immediate work centered on financial planning and infrastructure as the U.S. business develops. For now, the message to investors is that the company’s back office is being built to match the scale of its balance sheet ambitions.