Filed Pursuant to Rule 424(b)(5)
Registration No. 333-283732
Amendment No. 1, dated November 12, 2025
(To Prospectus Supplement dated January 3, 2025
and Prospectus dated December 18, 2024)
Up to US$750,000,000

Bitdeer Technologies Group
Class A Ordinary Shares
This prospectus supplement amendment No. 1 (this
“amendment”) amends the prospectus supplement, dated January 3, 2025, filed pursuant to Rule 424(b)(5) of the Securities Act
of 1933, as amended (File No. 333-283732) (the “prospectus supplement”). This amendment should be read in conjunction with
the prospectus supplement and the accompanying prospectus, dated December 18, 2024 (the “prospectus”), and is qualified by
reference thereto, except to the extent that the information herein amends or supersedes the information contained in the prospectus supplement
and the prospectus. This amendment is not complete without, and may only be delivered or utilized in connection with, the prospectus supplement
and the prospectus and any future amendments or supplements thereto.
On January 3, 2025, we entered into an At Market
Issuance Sales Agreement (the “sales agreement”) with Barclays Capital Inc. (“Barclays”), Cantor Fitzgerald &
Co. (“Cantor”), A.G.P./Alliance Global Partners (“AGP”), The Benchmark Company, LLC (“Benchmark”),
B. Riley Securities, Inc. (“B. Riley Securities”), BTIG, LLC (“BTIG”), Keefe, Bruyette & Woods, Inc. (“KBW”),
Needham & Company, LLC (“Needham”), Northland Securities, Inc. (“Northland”), Rosenblatt Securities Inc. (“Rosenblatt”),
Roth Capital Partners, LLC (“Roth”) and StockBlock Securities LLC (“StockBlock,” and each of Barclays, Cantor,
AGP, Benchmark, B. Riley Securities, BTIG, KBW, Needham, Northland, Rosenblatt, Roth and StockBlock, a “Sales Agent” and collectively,
the “Sales Agents”), relating to the sale of our Class A ordinary shares, with a par value of US$0.0000001 each (the “Class
A ordinary shares”), offered by the prospectus supplement and the accompanying prospectus.
We are filing this amendment to amend the prospectus
supplement solely to reflect a reduction in the total aggregate offering price of Class A ordinary shares we may offer and sell under
the prospectus supplement and the accompanying prospectus from US$1,000,000,000 to US$750,000,000. In accordance with the terms of the
sales agreement, under the prospectus supplement, as amended by this amendment, we may offer and sell our Class A ordinary shares having
an aggregate offering price of up to US$750,000,000 from time to time through or to the sales agents, as agent or principal. As of the
date of this amendment, we have sold Class A ordinary shares pursuant to the sales agreement for aggregate gross proceeds of US$102.2
million, which are included in the US$750,000,000 of our Class A ordinary shares we may offer and sell under the prospectus supplement
and the accompanying prospectus.
Sales of our Class A ordinary shares, if any, under
the prospectus supplement, as amended by this amendment, and the accompanying prospectus, may be made in negotiated transactions, including
block trades, or transactions that are deemed to be “at the market” offerings as defined in Rule 415 under the Securities
Act of 1933, as amended (the “Securities Act”), including sales made by means of ordinary brokers’ transactions, including
directly on The Nasdaq Capital Market (“Nasdaq”) or sales made to or through a market maker other than on an exchange at prevailing
market prices, at prices related to prevailing market prices or at negotiated prices or by any other method permitted by law. Subject
to the terms of the sales agreement, the Sales Agents are not required to sell any specific amount, but will act as our Sales Agents using
commercially reasonable efforts consistent with their normal trading and sales practices. There is no arrangement for funds to be received
in an escrow, trust or similar arrangement.
The designated Sales Agent will be entitled to
compensation at a commission rate of up to 3.0% of the gross sales price of any Class A ordinary shares sold under the sales agreement.
In connection with the sale of Class A ordinary shares on our behalf, each Sales Agent will be deemed to be an “underwriter”
within the meaning of the Securities Act and the compensation of the Sales Agents will 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 civil liabilities under the Securities Act. See “Plan of Distribution” beginning on page S-13 of the prospectus
supplement for additional information regarding the compensation to be paid to the Sales Agents.
Our Class A ordinary shares are currently listed
on Nasdaq under the symbol “BTDR.” On November 11, 2025, the last reported sales price of our Class A ordinary shares was
US$15.02 per share.
Investing in our securities involves a high
degree of risk. See the ‘‘Risk Factors” section beginning on page S-8 of the prospectus supplement and any risk
factors in our U.S. Securities and Exchange Commission filings that are incorporated by reference in the prospectus supplement.
None of the U.S. Securities and Exchange Commission
or any state securities commission has approved or disapproved of the securities or determined if the prospectus supplement or the accompanying
prospectus is accurate or adequate. Any representation to the contrary is a criminal offense.
| Barclays |
|
|
|
Cantor |
| |
|
|
|
|
| A.G.P. |
|
The Benchmark Company |
|
B. Riley Securities |
|
BTIG |
|
Keefe, Bruyette & Woods
A Stifel Company
|
| Needham & Company |
|
Northland Capital Markets |
|
Rosenblatt |
|
Roth Capital Partners |
|
StockBlock |
This Amendment No. 1 to the Prospectus Supplement
is dated November 12, 2025