Trump-backed investment platform ALT5 Sigma has vigorously denied claims of a US Securities and Exchange Commission (SEC) investigation into one of its executives, following reports suggesting potential misconduct. The company asserts that it is unaware of any such probe by the regulatory body and denies allegations of financial irregularities related to a recent $1.5 billion treasury deal with World Liberty Financial, led by Trump himself. The platform specifically states Jon Isaac, who was allegedly at the center of speculation regarding possible SEC scrutiny, holds no current or past leadership role within ALT5 Sigma. The company insists it has never been informed of any investigation concerning its activities by the US regulatory body.