According to the Wall Street Journal and House Oversight Committee records, Kalshi will require users to disclose their employer before trading certain contracts with elevated insider trading risks, effective in the coming weeks.
The move follows White House warnings sent to staff on March 24, 2026, against using non-public government information on prediction platforms, and a formal probe launched by House Oversight Committee Chair James Comer in May 2026. Kalshi has already conducted over 200 investigations into potential violations in the year leading to February 2026, resulting in suspensions and fines. The new rule applies to markets tied to political outcomes, corporate events, or policy decisions.