Susquehanna group reports 5.1% Bitdeer Technologies Group (BTDR) stake

Rhea-AI Filing Summary

Bitdeer Technologies Group received a Schedule 13G reporting that a group of affiliated entities—G1 Execution Services, LLC, SIG Brokerage, LP, Susquehanna Fundamental Investments, LLC, and Susquehanna Securities, LLC—beneficially own 11,506,100 Class A ordinary shares. This stake represents 5.1% of the Class A shares outstanding.

The filing notes that SIG Brokerage, LP’s reported holdings include options to buy 133,800 shares and Susquehanna Securities, LLC’s holdings include options to buy 9,915,500 shares. Bitdeer had 227,382,323 Class A shares outstanding as of June 30, 2026. The reporting persons state they may be deemed a group for these holdings, share voting and dispositive power over all reported shares, and each disclaims beneficial ownership of shares held directly by the others.

Key Figures

Shares beneficially owned: 11,506,100 shares Percent of class: 5.1% Shares outstanding: 227,382,323 shares +3 more

6 metrics

Shares beneficially owned 11,506,100 shares Class A ordinary shares beneficially owned collectively by the reporting persons

Percent of class 5.1% Percentage of Bitdeer Class A shares represented by 11,506,100 shares

Shares outstanding 227,382,323 shares Bitdeer Class A ordinary shares outstanding as of June 30, 2026

SIG Brokerage options 133,800 shares Options to buy Bitdeer Class A shares included in SIG Brokerage, LP’s beneficial ownership

Susquehanna Securities options 9,915,500 shares Options to buy Bitdeer Class A shares included in Susquehanna Securities, LLC’s beneficial ownership

Sole voting power, Susquehanna Securities 11,243,144 shares Shares over which Susquehanna Securities, LLC has sole voting power

Key Terms

beneficially owned, dispositive power, percent of class, CUSIP Number, +1 more

5 terms

beneficially owned financial

"The number of Shares reported as beneficially owned by SIG Brokerage, LP includes options"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

dispositive power financial

"Sole Dispositive Power 11,243,144.00 8 | Shared Dispositive Power 11,506,100.00"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

percent of class financial

"(b) | Percent of class: 5.1 %"

Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.

CUSIP Number financial

"(e) | CUSIP Number(s): G11448100"

A CUSIP number is a nine-character code that uniquely identifies a specific U.S. or Canadian stock, bond, or other security, similar to a barcode or a social-security number for a financial instrument. It matters to investors because it removes confusion between similar securities, ensures trades and settlements are applied to the correct issue, and helps locate official documents and transaction records quickly.

broker-dealers financial

"are affiliated independent broker-dealers which, together with Susquehanna Fundamental"

A broker-dealer is a firm or individual that helps people buy and sell securities and may also trade those securities for its own account. Think of it like a market clerk who can either match a buyer with a seller or sell items from the shop’s shelves; investors rely on broker-dealers to execute trades, custody assets, provide market access and advice, and their actions and fees can affect trade speed, cost and potential conflicts of interest.

FAQ

What stake in Bitdeer Technologies Group (BTDR) is reported in this Schedule 13G?

The reporting group discloses beneficial ownership of 11,506,100 Bitdeer Class A ordinary shares, representing 5.1% of the outstanding Class A shares as of June 30, 2026.

Which entities filed the Schedule 13G for Bitdeer Technologies Group (BTDR)?

The Schedule 13G is filed by G1 Execution Services, LLC, SIG Brokerage, LP, Susquehanna Fundamental Investments, LLC, and Susquehanna Securities, LLC, collectively referred to as the reporting persons.

How many Bitdeer (BTDR) shares were outstanding at June 30, 2026?

Bitdeer had 227,382,323 Class A ordinary shares outstanding as of June 30, 2026, according to a Prospectus Supplement referenced in the ownership report.

Does the Bitdeer (BTDR) 13G filing include options held by the reporting group?

Yes. SIG Brokerage, LP’s beneficial ownership includes options to buy 133,800 shares, and Susquehanna Securities, LLC’s reported holdings include options to buy 9,915,500 Bitdeer Class A shares.

How is voting and dispositive power over Bitdeer (BTDR) shares allocated among the reporting entities?

Each reporting person has sole voting and dispositive power over the shares it directly owns and shared voting and dispositive power over all 11,506,100 shares beneficially owned by the group.

Do the Bitdeer (BTDR) reporting persons claim full beneficial ownership of each other’s shares?

No. The filing states that while they may be deemed a group and share power over the reported shares, each reporting person disclaims beneficial ownership of shares held directly by any other reporting person.

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Available on EDGAR 08/14/2026 - 02:00 PM Accepted by SEC EDGAR 08/14/2026 - 01:59 PM Learn about SEC filing dates

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, US$0.0000001 par value

(Title of Class of Securities)

G11448100

(CUSIP Number)

06/30/2026

(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)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): G11448100

1

Names of Reporting Persons

G1 Execution Services, LLC

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

ILLINOIS

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 1,597.00
6	Shared Voting Power 11,506,100.00
7	Sole Dispositive Power 1,597.00
8	Shared Dispositive Power 11,506,100.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

11,506,100.00

10

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

11

Percent of class represented by amount in row (9)

5.1 %

12

Type of Reporting Person (See Instructions)

BD, OO

Comment for Type of Reporting Person: With respect to Row 5 through Row 9 above, G1 Execution Services, LLC, SIG Brokerage, LP and Susquehanna Securities, LLC are affiliated independent broker-dealers which, together with Susquehanna Fundamental Investments, LLC, may be deemed a group. For purposes of this report, we have indicated that each reporting person has sole voting and dispositive power with respect to the shares beneficially owned by it and that the reporting persons have shared voting and dispositive power with respect to all shares beneficially owned by all of the reporting persons. Each of the reporting persons disclaims beneficial ownership of shares owned directly by another reporting person.

SCHEDULE 13G

CUSIP Number(s): G11448100

1

Names of Reporting Persons

SIG Brokerage, LP

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 147,031.00
6	Shared Voting Power 11,506,100.00
7	Sole Dispositive Power 147,031.00
8	Shared Dispositive Power 11,506,100.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

11,506,100.00

10

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

11

Percent of class represented by amount in row (9)

5.1 %

12

Type of Reporting Person (See Instructions)

BD, PN

Comment for Type of Reporting Person: With respect to Row 5 through Row 9 above, G1 Execution Services, LLC, SIG Brokerage, LP and Susquehanna Securities, LLC are affiliated independent broker-dealers which, together with Susquehanna Fundamental Investments, LLC, may be deemed a group. For purposes of this report, we have indicated that each reporting person has sole voting and dispositive power with respect to the shares beneficially owned by it and that the reporting persons have shared voting and dispositive power with respect to all shares beneficially owned by all of the reporting persons. Each of the reporting persons disclaims beneficial ownership of shares owned directly by another reporting person.

SCHEDULE 13G

CUSIP Number(s): G11448100

1

Names of Reporting Persons

Susquehanna Fundamental Investments, LLC

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 114,328.00
6	Shared Voting Power 11,506,100.00
7	Sole Dispositive Power 114,328.00
8	Shared Dispositive Power 11,506,100.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

11,506,100.00

10

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

11

Percent of class represented by amount in row (9)

5.1 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: With respect to Row 5 through Row 9 above, G1 Execution Services, LLC, SIG Brokerage, LP and Susquehanna Securities, LLC are affiliated independent broker-dealers which, together with Susquehanna Fundamental Investments, LLC, may be deemed a group. For purposes of this report, we have indicated that each reporting person has sole voting and dispositive power with respect to the shares beneficially owned by it and that the reporting persons have shared voting and dispositive power with respect to all shares beneficially owned by all of the reporting persons. Each of the reporting persons disclaims beneficial ownership of shares owned directly by another reporting person.

SCHEDULE 13G

CUSIP Number(s): G11448100

1

Names of Reporting Persons

Susquehanna Securities, LLC

2

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

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 11,243,144.00
6	Shared Voting Power 11,506,100.00
7	Sole Dispositive Power 11,243,144.00
8	Shared Dispositive Power 11,506,100.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

11,506,100.00

10

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

11

Percent of class represented by amount in row (9)

5.1 %

12

Type of Reporting Person (See Instructions)

BD, OO

Comment for Type of Reporting Person: With respect to Row 5 through Row 9 above, G1 Execution Services, LLC, SIG Brokerage, LP and Susquehanna Securities, LLC are affiliated independent broker-dealers which, together with Susquehanna Fundamental Investments, LLC, may be deemed a group. For purposes of this report, we have indicated that each reporting person has sole voting and dispositive power with respect to the shares beneficially owned by it and that the reporting persons have shared voting and dispositive power with respect to all shares beneficially owned by all of the reporting persons. Each of the reporting persons disclaims beneficial ownership of shares owned directly by another reporting person.

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 entities listed below, who are collectively referred to herein as "Reporting Persons" with respect to the shares of Class A ordinary shares, US$0.0000001 par value (the "Shares"), of Bitdeer Technologies Group (the "Company"). (i) G1 Execution Services, LLC (ii) SIG Brokerage, LP (iii) Susquehanna Fundamental Investments, LLC (iv) Susquehanna Securities, LLC
(b)	Address or principal business office or, if none, residence: The address of the principal business office of G1 Execution Services, LLC is: 175 W. Jackson Blvd. Suite 1700 Chicago, IL 60604 The address of the principal business office of each of SIG Brokerage, LP, Susquehanna Fundamental Investments, LLC and Susquehanna Securities, LLC is: 401 E. City Avenue Suite 220 Bala Cynwyd, PA 19004
(c)	Citizenship: Citizenship is set forth in Row 4 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.
(d)	Title of class of securities: Class A ordinary shares, US$0.0000001 par value
(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: The information required by this Item 4(a) is set forth in Row 9 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person. The number of Shares reported as beneficially owned by SIG Brokerage, LP includes options to buy 133,800 Shares. The number of Shares reported as beneficially owned by Susquehanna Securities, LLC includes options to buy 9,915,500 Shares. The Company's Prospectus Supplement (to Prospectus dated August 10, 2026, Registration No. 333-298172), filed on August 10, 2026, indicates that there were 227,382,323 Shares outstanding as of June 30, 2026.
(b)	Percent of class: 5.1 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: The information required by this Item 4(c)(i) is set forth in Row 5 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.
	(ii) Shared power to vote or to direct the vote: The information required by this Item 4(c)(ii) is set forth in Row 6 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.
	(iii) Sole power to dispose or to direct the disposition of: The information required by this Item 4(c)(iii) is set forth in Row 7 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.
	(iv) Shared power to dispose or to direct the disposition of: The information required by this Item 4(c)(iv) is set forth in Row 8 of the cover page for each Reporting Person hereto and is incorporated herein by reference for each such Reporting Person.
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 acquired and are held in the ordinary course of business and 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.

G1 Execution Services, LLC

Signature:	/s/ Brian Sopinsky
Name/Title:	Brian Sopinsky, Secretary
Date:	08/14/2026

SIG Brokerage, LP

Signature:	/s/ Brian Sopinsky
Name/Title:	Brian Sopinsky, Assistant Secretary
Date:	08/14/2026

Susquehanna Fundamental Investments, LLC

Signature:	/s/ Brian Sopinsky
Name/Title:	Brian Sopinsky, Assistant Secretary
Date:	08/14/2026

Susquehanna Securities, LLC

Signature:	/s/ Brian Sopinsky
Name/Title:	Brian Sopinsky, Secretary
Date:	08/14/2026

Exhibit Information

EXHIBIT INDEX EXHIBIT DESCRIPTION ________ ________ 99 Joint Filing Agreement