Kenneth Griffin (BTDR) reports 9.6M Bitdeer shares under Citadel-linked entities

Rhea-AI Filing Summary

Bitdeer Technologies Group is reported to have significant ownership by entities affiliated with Citadel and by Kenneth Griffin. The filing states that Mr. Griffin may be deemed to beneficially own 9,595,542 Class A ordinary shares, representing 4.8% of the outstanding Shares.

Citadel Securities LLC may be deemed to beneficially own 6,664,874 Shares (3.4%), while each of Citadel Securities Group LP and Citadel Securities GP LLC may be deemed to beneficially own 8,665,701 Shares (4.4%). Each of Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC may be deemed to beneficially own 929,841 Shares (0.5%). Percentages are based on 198,913,731 Shares outstanding as of April 21, 2026.

Key Figures

Shares outstanding: 198,913,731 Shares Kenneth Griffin beneficial ownership: 9,595,542 Shares Citadel Securities LLC stake: 6,664,874 Shares +3 more

6 metrics

Shares outstanding 198,913,731 Shares Class A ordinary shares outstanding as of April 21, 2026

Kenneth Griffin beneficial ownership 9,595,542 Shares Represents 4.8% of Bitdeer Class A ordinary shares

Citadel Securities LLC stake 6,664,874 Shares Beneficial ownership constituting 3.4% of Shares outstanding

Citadel Securities Group LP / GP LLC stake 8,665,701 Shares Each may be deemed to beneficially own 4.4% of Shares outstanding

Citadel Advisors entities stake 929,841 Shares Each of Citadel Advisors LLC, CAH and CGP may own 0.5% of Shares

Sole voting power (all reporting persons) 0 Shares All reported voting power over Bitdeer Shares is shared, not sole

Key Terms

beneficially own, shared voting power, dispositive power, Schedule 13G, +1 more

5 terms

beneficially own financial

"may be deemed to beneficially own 9,595,542 Shares"

Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.

shared voting power financial

"Shared Voting Power 8,665,701.00"

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.

dispositive power financial

"Shared Dispositive Power 9,595,542.00"

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.

Schedule 13G regulatory

"The percentages reported in this are based upon 198,913,731 Shares"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

CUSIP Number financial

"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.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 07/27/2026 - 06:12 PM Accepted by SEC EDGAR 07/27/2026 - 06:12 PM Learn about SEC filing dates

FAQ

How many Bitdeer Technologies Group (BTDR) shares may Kenneth Griffin beneficially own?

Kenneth Griffin may be deemed to beneficially own 9,595,542 Class A ordinary shares of Bitdeer Technologies Group, representing 4.8% of the Shares outstanding based on 198,913,731 Shares as of April 21, 2026.

What is Citadel Securities LLC’s reported stake in Bitdeer Technologies Group (BTDR)?

Citadel Securities LLC may be deemed to beneficially own 6,664,874 Class A ordinary shares of Bitdeer Technologies Group, which constitutes 3.4% of the Shares outstanding, according to the ownership disclosure.

What percentage of Bitdeer Technologies Group (BTDR) is held by Citadel Securities Group LP and Citadel Securities GP LLC?

Each of Citadel Securities Group LP and Citadel Securities GP LLC may be deemed to beneficially own 8,665,701 Shares, representing 4.4% of Bitdeer’s outstanding Class A ordinary shares, based on 198,913,731 Shares outstanding.

How many Bitdeer (BTDR) shares are reported as beneficially owned by Citadel Advisors entities?

Each of Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC may be deemed to beneficially own 929,841 Shares of Bitdeer Technologies Group, which corresponds to 0.5% of the outstanding Class A ordinary shares.

What share count was used to calculate ownership percentages in the Bitdeer (BTDR) Schedule 13G?

All reported ownership percentages are based on 198,913,731 Class A ordinary shares of Bitdeer Technologies Group outstanding as of April 21, 2026, as referenced from the issuer’s Form 20-F.

Do the Citadel-related reporting persons have sole or shared voting power over Bitdeer (BTDR) shares?

The reporting persons disclose 0 Shares with sole voting power. All reported voting and dispositive power over Bitdeer Shares is on a shared basis, with Mr. Griffin having shared voting and dispositive power over 9,595,542 Shares.

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 per share (the "Shares")

(Title of Class of Securities)

G11448100

(CUSIP Number)

07/20/2026

(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

Citadel Securities GP 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 8,665,701.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 8,665,701.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,665,701.00

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)

4.4 %

12

Type of Reporting Person (See Instructions)

HC, OO

Comment for Type of Reporting Person: The percentages reported in this Schedule 13G are based upon 198,913,731 Shares outstanding as of April 21, 2026 (according to the issuer's Form 20-F as filed with the Securities and Exchange Commission on April 30, 2026). Except as described in the preceding sentence, all Shares for the holdings of the reporting persons reported in this Schedule 13G are as of the opening of the market on July 27, 2026.

SCHEDULE 13G

CUSIP Number(s): G11448100

1

Names of Reporting Persons

Citadel 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 0.00
6	Shared Voting Power 6,664,874.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 6,664,874.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,664,874.00

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)

3.4 %

12

Type of Reporting Person (See Instructions)

BD, OO

SCHEDULE 13G

CUSIP Number(s): G11448100

1

Names of Reporting Persons

Citadel Securities Group 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 0.00
6	Shared Voting Power 8,665,701.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 8,665,701.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,665,701.00

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)

4.4 %

12

Type of Reporting Person (See Instructions)

HC, PN

SCHEDULE 13G

CUSIP Number(s): G11448100

1

Names of Reporting Persons

Citadel Advisors 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 929,841.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 929,841.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

929,841.00

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)

0.5 %

12

Type of Reporting Person (See Instructions)

IA, HC, OO

SCHEDULE 13G

CUSIP Number(s): G11448100

1

Names of Reporting Persons

Citadel Advisors Holdings 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 0.00
6	Shared Voting Power 929,841.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 929,841.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

929,841.00

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)

0.5 %

12

Type of Reporting Person (See Instructions)

HC, PN

SCHEDULE 13G

CUSIP Number(s): G11448100

1

Names of Reporting Persons

Citadel GP 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 929,841.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 929,841.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

929,841.00

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)

0.5 %

12

Type of Reporting Person (See Instructions)

HC, OO

SCHEDULE 13G

CUSIP Number(s): G11448100

1

Names of Reporting Persons

Kenneth Griffin

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

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 9,595,542.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 9,595,542.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

9,595,542.00

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)

4.8 %

12

Type of Reporting Person (See Instructions)

HC, IN

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 Schedule 13G is being jointly filed by Citadel Securities GP LLC ("CSGP"), Citadel Securities LLC ("Citadel Securities"), Citadel Securities Group LP ("CALC4"), Citadel Advisors LLC ("Citadel Advisors"), Citadel Advisors Holdings LP ("CAH"), Citadel GP LLC ("CGP"), and Mr. Kenneth Griffin (collectively with CSGP, Citadel Securities, CALC4, Citadel Advisors, CAH, and CGP, the "Reporting Persons") with respect to the Shares of the above-named issuer held of record by Citadel Securities, Citadel Multi-Asset Master Fund Ltd., a Cayman Islands company ("CMAM"), Citadel Securities Principal Strategies LLC, a Delaware limited liability company ("CSP"), and CRBU Holdings LLC, a Delaware limited liability company ("CRBH"). Such Shares may include other instruments exercisable for or convertible into Shares. CALC4 is the non-member manager of Citadel Securities, CSP and CRBH. CSGP is the general partner of CALC4. Citadel Advisors is the portfolio manager for CMAM. CAH is the sole member of Citadel Advisors. CGP is the general partner of CAH. Mr. Griffin is the President and Chief Executive Officer of CGP, and owns a controlling interest in CGP and CSGP.
(b)	Address or principal business office or, if none, residence: The address of each of the Reporting Persons is 830 Brickell Plaza, Miami, Florida 33131.
(c)	Citizenship: Each of CSGP, Citadel Securities, Citadel Advisors, and CGP is organized as a limited liability company under the laws of the State of Delaware. Each of CALC4 and CAH is organized as a limited partnership under the laws of the State of Delaware. Mr. Griffin is a U.S. citizen.
(d)	Title of class of securities: Class A ordinary shares, par value US$0.0000001 per share (the "Shares")
(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: 1. Citadel Securities LLC may be deemed to beneficially own 6,664,874 Shares. 2. Each of Citadel Securities Group LP and Citadel Securities GP LLC may be deemed to beneficially own 8,665,701 Shares. 3. Each of Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC may be deemed to beneficially own 929,841 Shares. 4. Mr. Griffin may be deemed to beneficially own 9,595,542 Shares.
(b)	Percent of class: 1. The number of Shares that Citadel Securities LLC may be deemed to beneficially own constitutes 3.4% of the Shares outstanding. 2. The number of Shares that each of Citadel Securities Group LP and Citadel Securities GP LLC may be deemed to beneficially own constitutes 4.4% of the Shares outstanding. 3. The number of Shares that each of Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC may be deemed to beneficially own constitutes 0.5% of the Shares outstanding. 4. The number of Shares that Mr. Griffin may be deemed to beneficially own constitutes 4.8% of the Shares outstanding.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1. Citadel Securities LLC: 0 2. Each of Citadel Securities Group LP and Citadel Securities GP LLC: 0 3. Each of Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC: 0 4. Mr. Griffin: 0
	(ii) Shared power to vote or to direct the vote: 1. Citadel Securities LLC: 6,664,874 2. Each of Citadel Securities Group LP and Citadel Securities GP LLC: 8,665,701 3. Each of Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC: 929,841 4. Mr. Griffin: 9,595,542
	(iii) Sole power to dispose or to direct the disposition of: 1. Citadel Securities LLC: 0 2. Each of Citadel Securities Group LP and Citadel Securities GP LLC: 0 3. Each of Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC: 0 4. Mr. Griffin: 0
	(iv) Shared power to dispose or to direct the disposition of: 1. Citadel Securities LLC: 6,664,874 2. Each of Citadel Securities Group LP and Citadel Securities GP LLC: 8,665,701 3. Each of Citadel Advisors LLC, Citadel Advisors Holdings LP and Citadel GP LLC: 929,841 4. Mr. Griffin: 9,595,542
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.

Citadel Securities GP LLC

Signature:	/s/ Seth Levy
Name/Title:	Seth Levy, Authorized Signatory
Date:	07/27/2026

Citadel Securities LLC

Signature:	/s/ Seth Levy
Name/Title:	Seth Levy, Authorized Signatory
Date:	07/27/2026

Citadel Securities Group LP

Signature:	/s/ Seth Levy
Name/Title:	Seth Levy, Authorized Signatory
Date:	07/27/2026

Citadel Advisors LLC

Signature:	/s/ Seth Levy
Name/Title:	Seth Levy, Authorized Signatory
Date:	07/27/2026

Citadel Advisors Holdings LP

Signature:	/s/ Seth Levy
Name/Title:	Seth Levy, Authorized Signatory
Date:	07/27/2026

Citadel GP LLC

Signature:	/s/ Seth Levy
Name/Title:	Seth Levy, Authorized Signatory
Date:	07/27/2026

Kenneth Griffin

Signature:	/s/ Seth Levy
Name/Title:	Seth Levy, attorney-in-fact*
Date:	07/27/2026

Comments accompanying signature: * Seth Levy is signing on behalf of Kenneth Griffin as attorney-in-fact pursuant to a power of attorney previously filed with the Securities and Exchange Commission, and hereby incorporated by reference herein. The power of attorney was filed as an attachment to a filing by Citadel Advisors LLC on Schedule 13G for Allakos Inc. on October 13, 2023.

Exhibit Information

Exhibit 99.1 - Joint Filing Agreement