Trump-backed American Bitcoin board member adds $1.9 million to personal stake

Justin Mateen, a director of the board at American Bitcoin (ABTC), the mining company backed by U.S. President Donald Trump’s family, purchased nearly $1.93 million worth of the company’s stock over two consecutive trading sessions this week, following the company’s latest earnings report.

According to regulatory filings, Mateen bought about 145,000 Class A shares on Aug. 5 for roughly $925,000 at an average price of $6.40 per share. He followed that with the purchase of about 162,000 shares on Aug. 6 for approximately $1 million at an average price of $6.19 per share.

Combined, the purchases amounted to 306,981 shares for approximately $1.93 million.

Following the transactions, Mateen beneficially owns 492,297 shares of American Bitcoin’s Class A common stock, reflecting adjustments made after the company’s recent reverse stock split.

Mateen is a co-founder of Tinder and an ABTC board member since March 2025.