Polymarket Fires Chief Marketing Officer Following Internal Review

Polymarket has fired chief marketing officer Matthew Modabber following an internal review of the company's marketing operations, according to an October 22 report by the New York Post.

Modabber was an early employee and a close associate of founder and CEO Shayne Coplan. His departure comes as the prediction market operator faces growing attention over its promotional practices and internal oversight.

Marketing Practices Under Scrutiny

The reported review followed questions about how Polymarket promoted trading activity and worked with online personalities. Earlier reporting had raised allegations involving staged representations of successful trades and payments to influencers that were not clearly disclosed as promotions.

Those claims concern the conduct of marketing campaigns, not a finding that Polymarket's underlying prediction markets were manipulated. The allegations should also be distinguished from any formal regulatory conclusion.

Sources have reported that the company's legal team had pushed for changes to certain promotional practices before the dispute became public. The circumstances of Modabber's dismissal have been described by unnamed sources, rather than detailed in a public company statement.

A Close Tie to Polymarket's Founder

Modabber's relationship with Coplan made the decision particularly sensitive. The two knew each other before Polymarket's rise, and Modabber helped oversee marketing during a period of rapid growth for the platform.

According to the sources, Coplan resisted efforts to remove him before ultimately accepting the decision.

Greater Scrutiny as Polymarket Expands

The reported firing highlights the pressure on Polymarket to formalize its operations as prediction markets attract larger audiences, investors and regulatory attention. Promotional claims and paid influencer relationships are especially sensitive for a platform whose products involve financial stakes.

Polymarket has reportedly been reorganizing its marketing leadership. Modabber's exit leaves the company addressing those concerns while continuing to expand its presence in the prediction market industry.