Polymarket Fires Chief Marketing Officer Matthew Modabber Amid Internal Turmoil

Subtitle: The prediction market company has reportedly dismissed a longtime executive following an internal review of promotional practices, workplace conduct and undisclosed influencer partnerships as it seeks to strengthen its corporate image.

Polymarket Ousts Senior Marketing Executive

Polymarket has reportedly fired Matthew Modabber, its chief marketing officer and a longtime ally of CEO Shayne Coplan, marking another leadership shake-up at the prediction market company.

According to sources cited by the New York Post, Modabber’s departure followed an internal investigation launched earlier in the year into several controversies that raised concerns among investors and employees.

The reported dismissal comes as Polymarket faces pressure to move beyond its startup-era reputation and position itself for potential future growth, including a possible initial public offering (IPO).

Questions Over Promotional Campaigns

One of the central issues examined during the internal review was a reported marketing campaign involving a website that allegedly promoted staged videos of users claiming to profit from trades that were not genuine.

The Wall Street Journal reported on the promotional scheme in June, drawing attention to the company’s marketing practices and prompting an investigation by the Commodity Futures Trading Commission (CFTC), according to the source report.

The investigation remains ongoing, and no wrongdoing has been established. Polymarket previously told the Journal that it was committed to maintaining accurate, fair and transparent markets and intended to conduct a comprehensive audit of its active promotional content.

Sources cited by the New York Post also said company lawyers had warned Modabber to stop the marketing activity before it became public.

Growing Tensions Inside the Company

Modabber joined Polymarket early in its development and has described himself on LinkedIn as employee number 11. He credited his work with helping increase the platform’s daily trading volume from approximately $300,000 to the mid-nine-figure range through digital growth strategies.

He also said he built and led a team of more than 50 employees across marketing, partnerships and growth.

However, sources told the New York Post that disagreements had intensified between employees and investors aligned with Modabber and Coplan and others who believed the executive’s conduct posed risks to the company.

Insiders reportedly raised concerns about Modabber’s workplace behavior, including allegations of shouting in the office and spreading unsubstantiated sexual rumors about the co-founders of rival prediction market Kalshi.

A Polymarket spokesperson previously denied that Coplan had spread sexual rumors about Kalshi’s co-founders, while arguing that tensions between the two companies had contributed to the dispute.

The allegations remain contested, and the reported internal review should not be taken as proof of misconduct.

Scrutiny of Influencer Relationships

The internal review reportedly examined Modabber’s relationships with online influencers, including Clavicular, a social media personality known for promoting controversial looksmaxxing advice.

Polymarket has offered prediction markets related to Clavicular, including markets concerning the countries he might visit. Earlier in the year, Modabber and the influencer were reportedly filmed together at a nightclub. It remains unclear whether that incident played any role in the executive’s dismissal.

Sources also said investigators examined Modabber’s reported use of a personal PayPal account to pay influencers for Polymarket promotions. The account was allegedly associated with an email address linked to Salad House, an Italy-based salad business he co-founded.

A June report by Politico had raised questions about payments to political influencers and whether paid promotional relationships were adequately disclosed.

The extent of any disclosure failures, and whether they violated applicable rules, has not been established in the information provided.

A Company Under Pressure to Mature

Polymarket’s reported decision to dismiss Modabber reflects the challenges facing a rapidly growing company seeking to strengthen internal oversight while maintaining its competitive position.

According to sources, the company’s board concluded that the executive had become an obstacle to its efforts to present a more established corporate image. The reported board includes Coplan, crypto investor Nick Tomaino, lawyer Alex Spiro and a representative of Peter Thiel’s Founders Fund.

Polymarket’s legal team, led by Neal Kumar, was also reportedly concerned about Modabber’s actions.

As prediction markets attract increasing attention from investors, regulators and the public, the company’s handling of marketing, influencer relationships and internal governance could become increasingly important to its reputation.

Modabber’s reported departure marks a significant moment for the business, although the full circumstances surrounding the dismissal and the outcome of the regulatory investigation remain unclear.