Justin Mateen, best known as a co-founder of Tinder, has purchased approximately $1.85 million worth of shares in American Bitcoin Corp. (ABTC), according to a recent disclosure.

Mateen, who serves as an independent director of the company, acquired 1.8 million shares of ABTC's Class A common stock on March 3, 2026, at an average price of roughly $1.03 per share. The purchase came shortly after American Bitcoin reported a Q4 2025 net loss of $59 million, attributed primarily to Bitcoin price volatility. Open-market purchases by board members are typically noted by investors as a signal of insider confidence, particularly when they follow a disappointing earnings cycle.

Additional Board Activity

Mateen was not the only board member adding to his position. Fellow director Richard Busch also made investments during the same period.

Beyond the open-market purchase, Mateen received a grant of 46,404 restricted stock units (RSUs) on July 29, 2026. These RSUs are scheduled to vest at the company's 2027 annual meeting, further aligning his financial interests with American Bitcoin's performance.

Company Background and Strategy

American Bitcoin went public in September 2025 through a merger with Gryphon Digital Mining. The company operates as a majority-owned subsidiary of Hut 8, one of the largest publicly traded Bitcoin mining firms in North America. Parent company Hut 8 has been expanding its footprint across the mining and digital asset infrastructure sector, and American Bitcoin represents part of that broader push.

The company pursues a dual-track strategy that distinguishes it from pure-play mining operations, combining traditional self-mining with direct Bitcoin purchases for its corporate treasury. This approach mirrors the model popularized by companies such as MicroStrategy, which have used Bitcoin holdings as a core treasury reserve asset. By early August 2026, American Bitcoin had accumulated more than 8,000 BTC in its treasury holdings.

The $59 million Q4 loss is partly attributable to accounting mechanics. Companies that hold Bitcoin on their balance sheets are subject to mark-to-market volatility, meaning paper losses can expand significantly during price downturns even when no coins are sold.

Trump Family Involvement

American Bitcoin also carries a notable political dimension. Eric Trump serves as co-founder and chief strategy officer, while Donald Trump Jr. holds a stockholder position. Together, the Trump brothers own approximately 20% of the company. The Trump family has expanded its presence across the cryptocurrency sector, with affiliations spanning multiple digital asset ventures, making American Bitcoin one of several crypto-linked entities bearing the family's name.