SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Bitdeer Technologies Group

(Name of Issuer)

Class A ordinary shares, par value US$0.0000001

(Title of Class of Securities)

G11448100

(CUSIP Number)

05/28/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP Number(s):

G11448100

Names of Reporting Persons

Sunrise Partners Limited Partnership

Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

CAYMAN ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 18,184,369.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 18,184,369.00

Aggregate Amount Beneficially Owned by Each Reporting Person

18,184,369.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

9 %

Type of Reporting Person (See Instructions)

Comment for Type of Reporting Person: Amounts reported in Rows (6), (8), and (9) include 18,075,400 Class A ordinary shares that the Reporting Persons have the right to acquire within 60 days upon exercise of long call options. Percent of class represented by amount in Row (11) is based on 201,291,256 Class A ordinary shares outstanding, which is the sum of (i) 191,152,162 Class A ordinary shares outstanding as of December 31, 2025, and (ii) an aggregate 10,139,094 Class A ordinary shares that became outstanding after December 31, 2025, and through April 30, 2026, each as reported in the Issuer's annual report on Form 20-F filed with the Securities and Exchange Commission (the "SEC") on April 30, 2026.

SCHEDULE 13G

CUSIP Number(s):

G11448100

Names of Reporting Persons

Paloma International L.P.

Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

CAYMAN ISLANDS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 18,184,369.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 18,184,369.00

Aggregate Amount Beneficially Owned by Each Reporting Person

18,184,369.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

9 %

Type of Reporting Person (See Instructions)

PN, HC

Comment for Type of Reporting Person: Amounts reported in Rows (6), (8) and (9) include 18,075,400 Class A ordinary shares that the Reporting Persons have the right to acquire within 60 days upon exercise of long call options. Percent of class represented by amount in Row (11) is based on 201,291,256 Class A ordinary shares outstanding, which is the sum of (i) 191,152,162 Class A ordinary shares outstanding as of December 31, 2025, and (ii) an aggregate 10,139,094 Class A ordinary shares that became outstanding after December 31, 2025, and through April 30, 2026, each as reported in the Issuer's annual report on Form 20-F filed with the SEC on April 30, 2026.

SCHEDULE 13G

CUSIP Number(s):

G11448100

Names of Reporting Persons

Paloma Partners Management Co

Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 18,184,369.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 18,184,369.00

Aggregate Amount Beneficially Owned by Each Reporting Person

18,184,369.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

9 %

Type of Reporting Person (See Instructions)

CO, IA

SCHEDULE 13G

CUSIP Number(s):

G11448100

Names of Reporting Persons

Paloma Partners Advisors LP

Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 18,184,369.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 18,184,369.00

Aggregate Amount Beneficially Owned by Each Reporting Person

18,184,369.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

9 %

Type of Reporting Person (See Instructions)

PN, IA

SCHEDULE 13G

CUSIP Number(s):

G11448100

Names of Reporting Persons

Paloma Partners Advisors, Inc.

Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 18,184,369.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 18,184,369.00

Aggregate Amount Beneficially Owned by Each Reporting Person

18,184,369.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

9 %

Type of Reporting Person (See Instructions)

CO, HC

SCHEDULE 13G

CUSIP Number(s):

G11448100

Names of Reporting Persons

S. Donald Sussman

Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 18,184,369.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 18,184,369.00

Aggregate Amount Beneficially Owned by Each Reporting Person

18,184,369.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

9 %

Type of Reporting Person (See Instructions)

IN, HC

SCHEDULE 13G

Item 1.

(a)

Name of issuer:

Bitdeer Technologies Group

(b)

Address of issuer's principal executive offices:

08 Kallang Avenue, Aperia tower 1, #09-03/04, Singapore 339509

Item 2.

(a)

Name of person filing:

This statement is filed by the following persons (each, a "Reporting Person" and together, the "Reporting Persons"): Sunrise Partners Limited Partnership; Paloma International L.P.; Paloma Partners Management Company; Paloma Partners Advisors LP; Paloma Partners Advisors, Inc.; and S. Donald Sussman.

(b)

Address or principal business office or, if none, residence:

Sunrise Partners Limited Partnership Maples Corporate Services Limited P.O. Box 309 Ugland House, Grand Cayman, KY1-1104, Cayman Islands Paloma International L.P. Maples Corporate Services Limited P.O. Box 309 Ugland House, Grand Cayman, KY1-1104, Cayman Islands Paloma Partners Management Company Two American Lane Greenwich, CT 06836 Paloma Partners Advisors LP 888 E. Las Olas Blvd. Ft. Lauderdale, FL 33301 Paloma Partners Advisors, Inc. c/o Paloma Partners Advisors LP 888 E. Las Olas Blvd. Ft. Lauderdale, FL 33301 S. Donald Sussman c/o Paloma Partners Advisors LP 888 E. Las Olas Blvd. Ft. Lauderdale, FL 33301

(c)

Citizenship:

Sunrise Partners Limited Partnership - Cayman Islands Paloma International L.P. - Cayman Islands Paloma Partners Management Company - Delaware Paloma Partners Advisors LP - Delaware Paloma Partners Advisors, Inc. - Delaware S. Donald Sussman - United States of America

(d)

Title of class of securities:

Class A ordinary shares, par value US$0.0000001

(e)

CUSIP Number(s):

G11448100

Item 3.

If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

(a)

Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

(b)

Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

(c)

Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

(d)

Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);

(e)

An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

(f)

An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

(g)

A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h)

A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i)

A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j)

A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:

(k)

Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).

Item 4.

Ownership

(a)

Amount beneficially owned:

As of May 28, 2026, the Reporting Persons may have been deemed the beneficial owners of 12,861,001 Class A ordinary shares. This amount consisted of (i) 92,001 Class A ordinary shares and (ii) 12,769,000 Class A ordinary shares the Reporting Persons had the right to acquire within sixty days upon exercise of long call options. As of June 17, 2026, the Reporting Persons may be deemed the beneficial owners of 18,184,369 Class A ordinary shares. This amount consists of (i) 108,969 Class A ordinary shares and (ii) 18,075,400 Class A ordinary shares the Reporting Persons have the right to acquire within sixty days upon exercise of long call options.

(b)

Percent of class:

As of May 28, 2026, the Reporting Persons may have been deemed to beneficially own approximately 6.4% of the Class A ordinary shares outstanding. As of June 17, 2026, the Reporting Persons may be deemed to beneficially own approximately 9% of the Class A ordinary shares outstanding. The foregoing percentages are based on 201,291,256 Class A ordinary shares outstanding, which is the sum of (i) 191,152,162 Class A ordinary shares outstanding as of December 31, 2025, and (ii) an aggregate 10,139,094 Class A ordinary shares that became outstanding after December 31, 2025, and through April 30, 2026, each as reported in the Issuer's annual report on Form 20-F filed with the SEC on April 30, 2026.

(c)

Number of shares as to which the person has:

(i) Sole power to vote or to direct the vote:

(ii) Shared power to vote or to direct the vote:

18,184,369

(iii) Sole power to dispose or to direct the disposition of:

(iv) Shared power to dispose or to direct the disposition of:

18,184,369

Item 5.

Ownership of 5 Percent or Less of a Class.

Not Applicable

Item 6.

Ownership of more than 5 Percent on Behalf of Another Person.

Not Applicable

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.

Not Applicable

Item 8.

Identification and Classification of Members of the Group.

Not Applicable

Item 9.

Notice of Dissolution of Group.

Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Sunrise Partners Limited Partnership

Signature:	/s/ David Friedman
Name/Title:	David Friedman, GC & Chief Compliance Officer of Paloma Partners Management Company, general partner of Paloma International L.P., parent holder
Date:	06/18/2026

Paloma International L.P.

Signature:	/s/ David Friedman
Name/Title:	David Friedman, GC & Chief Compliance Officer of Paloma Partners Management Company, general partner
Date:	06/18/2026

Paloma Partners Management Co

Signature:	/s/ David Friedman
Name/Title:	David Friedman, GC & Chief Compliance Officer
Date:	06/18/2026

Paloma Partners Advisors LP

Signature:	/s/ S. Donald Sussman
Name/Title:	S. Donald Sussman, President, Paloma Partners Advisors, Inc., general partner
Date:	06/18/2026

Paloma Partners Advisors, Inc.

Signature:	/s/ S. Donald Sussman
Name/Title:	S. Donald Sussman, President
Date:	06/18/2026

S. Donald Sussman

Signature:	/s/ S. Donald Sussman
Name/Title:	S. Donald Sussman
Date:	06/18/2026

Exhibit Information

Exhibit 1: Joint Filing Agreement

SEC Form SCHEDULE 13G filed by Bitdeer Technologies Group