Company: BTBT
Filing Date: 2025-07-14
Form Type: 424B5
Source: 0001213900-25-063777
Chunk: 0

Company: Bit Digital, Inc
Filing Date: 2025-07-14
Form: 424B5
Chunk 0
---
Filed Pursuant to Rule 424(b)(5)

Registration Statement No.: 333-286841

The information contained in this preliminary prospectus supplement and the accompanying prospectus is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not a solicitation of an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.

<div align='center'>SUBJECT TO COMPLETION, DATED JULY 14, 2025</div>

PROSPECTUS SUPPLEMENT
(to Prospectus dated June 20, 2025)

<div align='center'>Ordinary Shares

Bit Digital, Inc.</div>

We are offering
of our ordinary shares, par value $.01 (“ordinary shares”), directly to certain institutional investors at an offering price
of $ per share pursuant to this prospectus supplement and
the accompanying prospectus.

Our ordinary shares are listed
on the Nasdaq Capital Market (“Nasdaq”) under the symbol “BTBT.” On July 11, 2025, the last reported sale price
of our ordinary shares on Nasdaq was $3.33.

We are a “smaller reporting
company” under applicable Securities and Exchange Commission, or the SEC, rules and, as such, have elected to comply with certain
reduced public company disclosure requirements for this prospectus supplement. See “Prospectus Supplement Summary—Smaller
Reporting Company” on page S-2 of this prospectus supplement for more information.

Investing in our ordinary shares involves a high degree of risk. Please read “Risk Factors” beginning on page S-4 of this prospectus supplement, on page 4 of the accompanying prospectus and in the documents incorporated by reference into this prospectus supplement and the accompanying prospectus.

We have engaged B. Riley Securities, Inc. (the “placement agent”),
as our exclusive placement agent in connection with this registered direct offering. The Placement Agent is not purchasing the securities
offered by us on behalf of any investors in the registered direct offering and is not required to sell any specific number or dollar amount
of securities, but will assist us in connection with such offering on a reasonable best efforts basis. As part of this offering, the placement
agent and/or its affiliates may purchase ordinary shares from us.

Neither the SEC nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus is truthful or complete