ALT5 Sigma, a crypto firm linked to Trump, refutes rumors of SEC investigation

Written by Ohris M. Greyoon, Blockchain & Crypto Expert

Source: Coinmarketcap

Updated: Aug 20 2025

ALT5 Sigma's Denial: ALT5 Sigma has denied reports of an SEC investigation into executive Jon Isaac regarding alleged earnings inflation and insider trading related to a $1.5 billion deal with Trump's crypto platform.
Jon Isaac's Clarification: Jon Isaac stated he is not the president of ALT5 and is not under investigation, asserting that the reports contain factual errors about his role and regulatory status.
Impact on Share Price: The rumors led to a significant drop in ALT5's share price, falling 10.5% to $10.48, and further declining to $5.39 in after-hours trading.
Previous SEC Complaints: The SEC had previously filed complaints against Jon Isaac for financial fraud allegations, which he and his companies have denied, with the case still active in federal court.

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Ohris M. Greyoon

Ohris M. Greyoon holds a Master’s in Computer Science from MIT and has 10 years of experience in blockchain technology and cryptocurrency markets. A pioneer in decentralized finance (DeFi) analysis, he leads Intellectia’s Crypto News, offering cutting-edge insights into digital assets.