Company: BTBT
Filing Date: 2025-06-26
Form Type: 424B5
Source: 0001213900-25-058407
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Company: Bit Digital, Inc
Filing Date: 2025-06-26
Form: 424B5
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Filed Pursuant to Rule 424(b)(5)

Registration Statement No.: 333-286841

PROSPECTUS SUPPLEMENT
(to Prospectus dated June 20, 2025)

<div align='center'>75,000,000 Ordinary Shares

Bit Digital, Inc.</div>

We are offering 75,000,000
of our ordinary shares, par value $.01 (“ordinary shares”), pursuant to this prospectus supplement and the accompanying prospectus.

Sam Tabar, our Chief Executive
Officer, Brock Pierce, a member of our board of directors, and Bryan Bullet, a senior advisor, have agreed to purchase an aggregate of
1,375,000 ordinary shares in this offering on the same terms as the other investors participating in the offering.

Our ordinary shares are listed
on the Nasdaq Capital Market (“Nasdaq”) under the symbol “BTBT.” On June 25, 2025, the last reported sale price
of our ordinary shares on Nasdaq was $2.35.

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.

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. Any representation to the contrary is a criminal offense.

|                                 |     | PER SHARE |      |     | TOTAL |             |
|:--------------------------------|:----|:----------|-----:|:----|:------|------------:|
| Public offering price           |     | $         | 2.00 |     | $     | 150,000,000 |
| Underwriting discount(1)        |     | $         | 0.10 |     | $     |   7,500,000 |
| Proceeds to us, before expenses |     | $         | 1.90 |     | $     | 142,500,000 |