Jane Street reports 5.8% stake in Terawulf

Jane Street Group and related entities reported beneficial ownership of 5.8% of Terawulf Inc. common stock, representing 27,751,813 shares as disclosed on 05/04/2026.

Rhea-AI Filing Summary

Jane Street Group and related entities reported beneficial ownership of 5.8% of Terawulf Inc. common stock, representing 27,751,813 shares as disclosed on 05/04/2026. The filing lists shared voting and dispositive power for that aggregate position and identifies subsidiaries that hold the shares.

Insights

Institutional Ownership Analyst

Large passive stake disclosed: Jane Street entities hold 5.8% of Terawulf.

The schedule reports an aggregate beneficial position of 27,751,813 shares held with shared voting and dispositive power. The filing identifies specific subsidiaries (e.g., Jane Street Capital, LLC) as holders, consistent with a consolidated disclosure.

This is a factual ownership disclosure; cash‑flow treatment and trading intent are not stated in the excerpt. Subsequent filings could show changes in active trading status or Schedule 13D conversion, but timing is not provided in the excerpt.

Key Figures

Aggregate shares beneficially owned: 27,751,813 shares Aggregate percent of class: 5.8% Jane Street Capital holdings: 22,734,214 shares +2 more

5 metrics

Aggregate shares beneficially owned 27,751,813 shares As reported in Schedule 13G filing dated <date>05/04/2026</date>

Aggregate percent of class 5.8% Percent of Terawulf common stock reported in the filing

Jane Street Capital holdings 22,734,214 shares Held by Jane Street Capital, LLC (reported as 4.7%)

Jane Street Global Trading holdings 3,022,147 shares Held by Jane Street Global Trading, LLC (reported as 0.6%)

Leonard Street Holdings holdings 1,994,649 shares Held by Leonard Street Holdings, LP (reported as 0.4%)

Key Terms

Schedule 13G, Beneficial ownership, Shared Dispositive Power, Shared Voting Power

4 terms

Schedule 13G regulatory

"Item 1. | (a) | Name of issuer: TERAWULF INC."

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.

Beneficial ownership financial

"Item 4. | Ownership (a) | Amount beneficially owned: 27,751,813.00"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Shared Dispositive Power regulatory

"Item 4. | (iv) | Shared power to dispose or to direct the disposition of: 27,751,813.00"

Shared Voting Power regulatory

"Item 4. | (ii) | Shared power to vote or to direct the vote: 27,751,813.00"

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.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What stake does Jane Street report in TERAWULF (WULF)?

Jane Street and related entities report beneficial ownership of 27,751,813 shares, equal to 5.8% of Terawulf common stock as of the filing dated 05/04/2026. The position is shown with shared voting and dispositive power.

Which Jane Street subsidiaries are listed as holders in the Schedule 13G?

The filing lists Jane Street Capital, LLC, Jane Street Global Trading, LLC, Leonard Street Holdings, LP, and Jane Street Singapore Pte. Limited as subsidiaries associated with the disclosed ownership position.

Does the Schedule 13G state whether Jane Street is passive or active?

This excerpt is a Schedule 13G disclosure of beneficial ownership and does not state trading intent or active management; the form itself implies passive investor status unless converted to a Schedule 13D by amendment.

How much of the 5.8% position is held by Jane Street Capital, LLC?

Jane Street Capital, LLC is shown holding 22,734,214 shares, which the filing lists as 4.7% of the class. The filing attributes shared voting and dispositive power for that amount.

Who signed the Schedule 13G for Jane Street and when was it signed?

The filing is signed by Jeremy Kahn (Authorized Signatory) on 05/04/2026, certifying the disclosures for the reporting entities listed in the document.

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

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Accepted by SEC EDGAR 05/04/2026 - 04:05 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

TERAWULF INC.

(Name of Issuer)

Common Stock, par value $0.001 per share

(Title of Class of Securities)

88080T104

(CUSIP Number)

04/28/2026

(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)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 88080T104

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 27,751,813.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 27,751,813.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

27,751,813.00

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)

5.8 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 88080T104

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 22,734,214.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 22,734,214.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

22,734,214.00

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)

4.7 %

12

Type of Reporting Person (See Instructions)

BD

SCHEDULE 13G

CUSIP Number(s): 88080T104

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 3,022,147.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 3,022,147.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,022,147.00

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)

0.6 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 88080T104

1

Names of Reporting Persons

Leonard Street 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 1,994,649.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,994,649.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,994,649.00

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)

0.4 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 88080T104

1

Names of Reporting Persons

Jane Street Singapore Pte. Ltd

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

SINGAPORE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 803.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 803.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

803.00

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)

0.0 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: TERAWULF INC.
(b)	Address of issuer's principal executive offices: 9 FEDERAL STREET, EASTON, MARYLAND, 21601.
Item 2.
(a)	Name of person filing: Jane Street Group, LLC; Jane Street Capital, LLC; Jane Street Global Trading, LLC; Leonard Street Holdings, LP, Jane Street Singapore Pte. Limited
(b)	Address or principal business office or, if none, residence: Jane Street Group, LLC 250 Vesey Street 6th Floor New York, NY 10281 Jane Street Capital, LLC 250 Vesey Street 6th Floor New York, NY 10281 Jane Street Global Trading, LLC 250 Vesey Street 6th Floor New York, NY 10281 Leonard Street Holdings, LP 250 Vesey Street 6th Floor New York, NY 10281 Jane Street Singapore Pte. Limited 4/F, Ocean Financial Centre 10 Collyer Quay Singapore 049315
(c)	Citizenship: See Item 4 of Cover Page
(d)	Title of class of securities: Common Stock, par value $0.001 per share
(e)	CUSIP Number(s): 88080T104
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: 27,751,813.00
(b)	Percent of class: 5.8 %
(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: 27,751,813.00
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 27,751,813.00
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 Leonard Street Holdings, LP Jane Street Singapore Pte. Limited
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:	05/04/2026

Jane Street Capital, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	05/04/2026

Jane Street Global Trading, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	05/04/2026

Leonard Street Holdings, LP

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	05/04/2026

Jane Street Singapore Pte. Ltd

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	05/04/2026