Jane Street Group (BTDR) discloses 12.9M Bitdeer shares under shared control

Rhea-AI Filing Summary

Jane Street Group, LLC, together with its subsidiaries, reports beneficial ownership of 12,933,431 Bitdeer Technologies Group Class A ordinary shares, representing 5.7% of this class as of June 30, 2026. All reported shares are held with shared voting and shared dispositive power; no shares are held with sole power.

Within this aggregate position, Jane Street Capital, LLC is reported as beneficial owner of 10,300,527 shares (4.5% of the class), and Jane Street Global Trading, LLC as beneficial owner of 2,632,904 shares (1.2% of the class). The filing identifies Jane Street Group, LLC as a parent holding company and lists these two subsidiaries as the entities that acquired the securities.

Key Figures

Aggregate shares beneficially owned: 12,933,431 shares Percent of class owned: 5.7% Jane Street Capital holdings: 10,300,527 shares +3 more

6 metrics

Aggregate shares beneficially owned 12,933,431 shares Class A ordinary shares of Bitdeer Technologies Group beneficially owned by Jane Street Group, LLC

Percent of class owned 5.7% Percentage of Bitdeer Class A ordinary shares beneficially owned by Jane Street Group, LLC

Jane Street Capital holdings 10,300,527 shares Bitdeer Class A ordinary shares beneficially owned by Jane Street Capital, LLC (4.5% of class)

Jane Street Global Trading holdings 2,632,904 shares Bitdeer Class A ordinary shares beneficially owned by Jane Street Global Trading, LLC (1.2% of class)

Shared voting power 12,933,431 shares Shares of Bitdeer Class A over which Jane Street Group, LLC has shared voting power

Shared dispositive power 12,933,431 shares Shares of Bitdeer Class A over which Jane Street Group, LLC has shared dispositive power

Key Terms

beneficially owned, shared voting power, shared dispositive power, parent holding company, +1 more

5 terms

beneficially owned financial

"Item 4. | Ownership (a) | Amount beneficially owned: 12,933,431.00"

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.

shared voting power financial

"6 | Shared Voting Power 12,933,431.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power financial

"8 | Shared Dispositive Power 12,933,431.00"

parent holding company financial

"If a parent holding company has filed this schedule, pursuant to (ii)(G)"

subsidiary financial

"Subsidiary Jane Street Capital, LLC Jane Street Global Trading, LLC"

A subsidiary is a company that is controlled or owned by a larger company, known as the parent company. Think of it like a branch or division of a bigger organization; it operates separately but is ultimately guided by the parent. For investors, understanding subsidiaries helps clarify how a larger company is structured and where its resources and risks are concentrated.

FAQ

What percentage of Bitdeer Technologies Group (BTDR) shares does Jane Street Group report owning?

Jane Street Group, LLC reports beneficial ownership of 5.7% of Bitdeer Technologies Group’s Class A ordinary shares, totaling 12,933,431 shares as of June 30, 2026, with all voting and dispositive power held on a shared basis.

How many Bitdeer (BTDR) shares are attributed to Jane Street Capital, LLC in this Schedule 13G/A?

Jane Street Capital, LLC is reported as beneficial owner of 10,300,527 Bitdeer Class A ordinary shares, representing 4.5% of the class. These shares are held with shared voting and shared dispositive power and form part of Jane Street Group’s aggregate position.

What stake in Bitdeer (BTDR) is reported for Jane Street Global Trading, LLC?

Jane Street Global Trading, LLC is reported as beneficial owner of 2,632,904 Bitdeer Class A ordinary shares, equal to 1.2% of the class. These shares are also held with shared voting and shared dispositive power under the Jane Street Group structure.

Does Jane Street Group report sole or shared voting power over its Bitdeer (BTDR) holdings?

Jane Street Group reports 0 shares with sole voting power and 12,933,431 shares with shared voting power. It likewise reports no sole dispositive power and 12,933,431 shares with shared dispositive power over Bitdeer Class A shares.

Which entities within Jane Street are identified as acquiring Bitdeer (BTDR) securities?

The filing identifies Jane Street Capital, LLC and Jane Street Global Trading, LLC as subsidiaries that acquired the Bitdeer securities. Jane Street Group, LLC is described as the parent holding company reporting the combined beneficial ownership position.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/12/2026 - 04:28 PM Accepted by SEC EDGAR 08/12/2026 - 04:28 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

Bitdeer Technologies Group

(Name of Issuer)

Class A ordinary shares, par value US$0.0000001

(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

JANE STREET GROUP, 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 0.00
6	Shared Voting Power 12,933,431.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 12,933,431.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

12,933,431.00

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)

5.7 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): G11448100

1

Names of Reporting Persons

Jane Street Capital, 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 0.00
6	Shared Voting Power 10,300,527.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 10,300,527.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

10,300,527.00

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)

4.5 %

12

Type of Reporting Person (See Instructions)

BD

SCHEDULE 13G

CUSIP Number(s): G11448100

1

Names of Reporting Persons

Jane Street Global Trading, 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 0.00
6	Shared Voting Power 2,632,904.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 2,632,904.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

2,632,904.00

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)

1.2 %

12

Type of Reporting Person (See Instructions)

OO

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, #09-0, 08 KALLANG AVENUE, APERIA TOWER 1, #09-0, SINGAPORE, SINGAPORE, 339509
Item 2.
(a)	Name of person filing: Jane Street Group, LLC; Jane Street Capital, LLC; Jane Street Global Trading, LLC
(b)	Address or principal business office or, if none, residence: Jane Street Group, LLC 250 Vesey Street 3rd Floor New York, NY 10281 Jane Street Capital, LLC 250 Vesey Street 3rd Floor New York, NY 10281 Jane Street Global Trading, LLC 250 Vesey Street 3rd Floor New York, NY 10281
(c)	Citizenship: See Item 4 of Cover Page
(d)	Title of class of securities: Class A ordinary shares, par value US$0.0000001
(e)	CUSIP No.: 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: 12,933,431.00
(b)	Percent of class: 5.7%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 12,933,431.00
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 12,933,431.00
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.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. Subsidiary Jane Street Capital, LLC Jane Street Global Trading, LLC
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.

JANE STREET GROUP, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/12/2026

Jane Street Capital, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/12/2026

Jane Street Global Trading, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/12/2026