Director Justin Mateen buys $1.9 million of American Bitcoin Corp. (ABTC)

Justin Mateen, director of American Bitcoin Corp., bought 1,800,000 shares on the open market on March 3, 2026 at an average of $1.03 a share, for a total of $1.9 million. The purchase was reported to the SEC on Form 4 on March 5, 2026.

It raised their holding by 248%, to 2,524,975 shares.

The purchase came after a fall: American Bitcoin Corp. stock was down 75.9% over the 13 weeks before.

1 other insider also bought at least $10,000 of ABTC within 30 days, which makes this a cluster buy.

In the 12 months up to this filing, American Bitcoin Corp. insiders reported 3 open-market purchases and 0 sales.

WallStPal Score: 68 out of 100, because of raised their holding by 248%; a large purchase; 1 other insider also bought; the stock had fallen 75.9% in the 13 weeks before.

What happened next: after 1 month the stock was down 10.7% (3.1 points worse than the S&P 500); after 3 months the stock was up 4.9% (5.4 points worse than the S&P 500). Based on weekly prices from the week of the purchase.

Our read

This one purchase is 85% of all insider buying at ABTC in the past year, the first open-market purchase by Justin Mateen in our records, made after a 75.9% fall in 13 weeks, a setup where insider buying has historically mattered most. Insiders buy for many reasons and can be wrong; one purchase is a reason to look closer, not a reason to buy.

Source: SEC Form 4 filing ↗. This story was written automatically from the filing and weekly price data. Information, not investment advice.

Examples

Big insider purchases have made news before. In January 2016, with bank stocks falling, JPMorgan Chase CEO Jamie Dimon bought 500,000 JPMorgan shares, about $26 million of his own money, and the purchase was widely reported as a sign of confidence.

Explain it like I'm 13

Justin Mateen helps run American Bitcoin Corp.. Spending $1.9 million of their own money on the company's stock is like a coach buying a big stack of tickets to their own team's games: it suggests they think the team will do well. It is not a promise, and insiders can be wrong.

More: all ABTC insider trades · Justin Mateen's track record