Polymarket fires chief marketing officer Matthew Modabber after internal probe into alleged misconduct
Polymarket has reportedly fired its chief marketing officer Matthew Modabber, a close friend of CEO Shayne Coplan, following an internal investigation into alleged misconduct including a scheme involving fake trades.
Why it matters
The firing of a senior executive close to the CEO amid regulatory scrutiny and ahead of a potential public offering could affect Polymarket's operations and reputation. The Commodity Futures Trading Commission investigation into alleged fake trades adds regulatory risk.
Key facts
Polymarket fired its chief marketing officer Matthew Modabber
Reported by CoinDesk
Matthew Modabber is a close friend of CEO Shayne Coplan
Reported by CoinDesk
The firing followed an internal probe into several incidents including an alleged scheme involving fake trades
Reported by CoinDesk
The Commodity Futures Trading Commission is investigating claims that Modabber's team created a webpage featuring videos of users profiting from fake trades
Reported by CoinDesk
No wrongdoing has been proved in the Commodity Futures Trading Commission investigation
Reported by CoinDesk
Polymarket's board concluded Modabber was hindering efforts to improve the company's image as it considers a potential initial public offering
Reported by CoinDesk
The firm is finalizing a separation agreement with Modabber
Reported by CoinDesk
Modabber had been chief marketing officer since January 2024
Reported by CoinDesk
What happened
CoinDesk reports that Polymarket has fired its chief marketing officer Matthew Modabber, who is also a close friend of CEO Shayne Coplan, according to the New York Post. The termination followed an internal probe into several incidents, including an alleged scheme involving fake trades. The Commodity Futures Trading Commission is investigating claims that Modabber's team created a webpage featuring videos of users profiting from fake trades, though no wrongdoing has been proved. Polymarket's board reportedly concluded that Modabber was hindering efforts to improve the prediction market's image as it considers a potential initial public offering. The firm is said to be finalizing a separation agreement. Modabber had served as chief marketing officer since January 2024. CoinDesk has reached out to Polymarket for comment.
How the story developed
- First report
First report by CoinDesk
Polymarket has reportedly fired its marketing chief, also a close friend of the CEO
- Update
New York Post reports Polymarket fired chief marketing officer Matthew Modabber
Report cites unnamed sources saying termination followed internal probe into alleged misconduct including fake trades scheme
- Update
CoinDesk publishes report on New York Post story
CoinDesk reaches out to Polymarket for comment
How coverage built up
Independent sources over time, counted the way the consensus panel counts them: a republication of a wire story does not move the line.
- 23 Oct 2026, 05:01 UTC: CoinDesk — 1 independent source, 1 reports
- 23 Oct 2026, 22:04 UTC: Unchained — 2 independent sources, 2 reports
Affected entities
Original sources
| Publisher | Report | Role | Published |
|---|---|---|---|
| CoinDesk Crypto media | Polymarket has reportedly fired its marketing chief, also a close friend of the CEO | Original | |
| Unchained Crypto media | Polymarket Pushes Out Marketing Chief Modabber, a Longtime Friend of CEO Coplan: Report | Independent |
Related events
Five Indicted in Paris Over Alleged $2 Million Crypto Diversion to Hamas' Military Wing
Paris police say five people funneled over $2 million in crypto donations to Hamas' military wing via charity appeals, indicted Oct. 2, 2026 in an operation run with U.S. authorities.
Wall Street Meta targets after Muse Wonder span a Cantor cut to $840 and Wells Fargo's $1,000
Finbold reports five Wall Street analysts set Meta targets from $810 to $1,000 after the Muse Wonder AI release, with Cantor Fitzgerald cutting its target from $860 to $840.
Paxos adds XRP to its crypto brokerage service for partner platforms
Paxos added XRP to its Crypto Brokerage platform, letting partner financial apps offer buying, selling, custody, deposits, withdrawals and transfers of the token.
HIFI raises $37M in Series A as eight crypto financings total $104.2M in a week
Crypto.News reported more than $104.2 million in eight disclosed crypto financings from Sep. 19 to Sep. 25, 2026, led by HIFI's $37 million Series A and Atum's $13.5 million launch round.