Company: ABTC
Filing Date: 2025-09-03
Form Type: 424B5
Source: 0001213900-25-083737
Chunk: 1

Company: American Bitcoin Corp.
Filing Date: 2025-09-03
Form: 424B5
Chunk 1
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 by law. The sales agents are not required to sell any
specific number or dollar amount of our Class A common stock, but the sales agents will use their commercially reasonable efforts consistent
with their normal trading and sales practices in accordance with the sales agreement and on mutually agreed terms between each sales agent
and us.

Each sales agent will receive
from us a commission equal to up to 3.0% of the gross proceeds from the sales of shares of our Class A common stock sold to or through
it under the sales agreement. In connection with the sale of the shares of our Class A common stock on our behalf, each sales agent may
be deemed to be an “underwriter” within the meaning of the Securities Act, and the compensation of each sales agent may be
deemed to be underwriting commissions or discounts. We have also agreed to provide indemnification and contribution to the sales agents
with respect to certain liabilities, including liabilities under the Securities Act.

Under the terms of the sales
agreement, we may also sell shares of our Class A common stock to the sales agents, acting as principals, at a price per share to be agreed
upon at the time of sale. If we sell shares to the sales agents as principals, we will enter into a separate terms agreement with them.

Investing in our Class A common stock involves risks. See “ Risk Factors” beginning on page S-3 of this prospectus supplement and in the documents incorporated by reference in this prospectus supplement and the accompanying prospectus for a description of risks you should consider when evaluating such investment.

Neither the Securities and Exchange Commission (the “SEC”) nor any state securities commission, nor any other regulatory body has approved or disapproved of these securities or determined if this prospectus supplement and the prospectus to which it relates are truthful and complete. Any representation to the contrary is a criminal offense.

| Cantor |     | Mizuho |

| Benchmark        
 A StoneX Company |     | BTIG |     | Canaccord Genuity |     | Clear Street |     | Craig-Hallum |     | H.C. Wainwright & Co. |     | Jones |

| Keefe, Bruyette & Woods 
 A Stifel Company        |     | Needham & Company |     | Northland Capital Markets |     | Piper Sandler |     | Roth Capital Partners |     | Virtu Financial |

<div align='center'>The date of this prospectus supplement is September 3, 2025.

Prospect