Jane Street Group reports 8.5% stake in SMCI

Jane Street Group entities reported collective beneficial ownership of common stock in Super Micro Computer, Inc. The filing states a combined 56,635,790 shares beneficially owned, representing 8.5% of the class based on a 665,014,777 share denominator.

Rhea-AI Filing Summary

Jane Street Group entities reported collective beneficial ownership of common stock in Super Micro Computer, Inc. The filing states a combined 56,635,790 shares beneficially owned, representing 8.5% of the class based on a 665,014,777 share denominator.

The filing attributes 18,182,400 shares to depositary interests tied to 7.00% Series A Mandatory Convertible Preferred Stock, and the ownership split across Jane Street subsidiaries is shown (Jane Street Global Trading, Jane Street Capital, Jane Street Singapore).

Insights

Equity Ownership Specialist

Jane Street reports an 8.5% stake in SMCI via multiple affiliated entities.

The schedule lists 56,635,790 shares of Common Stock with 56,635,790 shared voting and dispositive power, using a denominator of 665,014,777 shares that incorporates 18,182,400 depositary-share equivalents from convertible preferred stock.

This is a passive beneficial-ownership disclosure under Schedule 13G showing holdings across affiliated entities; subsequent filings may detail any changes in voting arrangements or conversions tied to the convertible preferred securities.

Key Figures

Beneficial ownership: 56,635,790 shares Percent of class: 8.5% Denominator used: 665,014,777 shares +4 more

7 metrics

Beneficial ownership 56,635,790 shares combined Jane Street entities

Percent of class 8.5% based on 665,014,777 share denominator

Denominator used 665,014,777 shares 646,832,377 outstanding as of <date>June 10, 2026</date> plus dilution from depositary-share equivalents

Outstanding shares cited 646,832,377 shares shares outstanding as of <date>June 10, 2026</date> per issuer 424B5 filing

Depositary-share equivalents 18,182,400 shares acquirable via <b>7.00% Series A Mandatory Convertible Preferred Stock</b>

Jane Street Global Trading voting power 40,895,776 shares shared voting/dispositive power

Jane Street Capital voting power 15,728,196 shares shared voting/dispositive power

Key Terms

Depositary Shares, Mandatory Convertible Preferred Stock, Schedule 13G, Beneficial ownership

4 terms

Depositary Shares financial

"includes 18,182,400 shares that can be acquired from Depositary Shares"

Depositary shares are tradable certificates that represent a fractional piece of a larger security held by a third-party bank, like owning a slice of a single big pie instead of the whole pie. They let companies issue and investors buy smaller, more affordable portions of preferred stock or other instruments; holders usually receive proportional dividends and market pricing similar to ordinary shares, but may have limited voting rights and different liquidity or tax implications, which can affect income and resale value.

Mandatory Convertible Preferred Stock financial

"7.00% Series A Mandatory Convertible Preferred Stock"

A mandatory convertible preferred stock is a type of investment that pays regular income like a preferred share but is designed to automatically turn into a set number of common shares at a future date, much like a timed coupon that becomes company ownership. It matters to investors because it combines a near-term income stream with a guaranteed future increase in the company’s share count, which can dilute existing owners and change earnings-per-share and voting balance.

Schedule 13G regulatory

"Item 1. Name of issuer: Super Micro Computer, 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

"Amount beneficially owned: 56,635,790.00"

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.

FAQ

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

What stake did Jane Street report in SMCI (Super Micro Computer, Inc.)?

The filing reports a combined 56,635,790 shares, equal to 8.5% of common stock using a 665,014,777 share denominator that includes potential dilution from convertible preferred interests.

How does the filing treat the 18,182,400 depositary-share equivalents?

The filing counts 18,182,400 depositary-share equivalents from a 7.00% Series A Mandatory Convertible Preferred Stock holding when calculating the 665,014,777 denominator used for percent ownership.

Which Jane Street entities are shown as beneficial owners of SMCI?

The schedule lists Jane Street Group, LLC, Jane Street Capital, LLC, Jane Street Global Trading, LLC, and Jane Street Singapore Pte. Limited with varying shared voting and dispositive power allocations.

Does the Schedule 13G indicate voting or dispositive power for Jane Street?

The filing shows shared voting power and shared dispositive power of 56,635,790 shares for the reporting group; sole voting and dispositive power are reported as 0 for the group in this schedule.

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

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Accepted by SEC EDGAR 06/16/2026 - 04:11 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Super Micro Computer, Inc.

(Name of Issuer)

Common Stock, $0.001 par value

(Title of Class of Securities)

86800U302

(CUSIP Number)

06/11/2026

(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): 86800U302

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 56,635,790.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 56,635,790.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

56,635,790.00

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)

8.5 %

12

Type of Reporting Person (See Instructions)

HC

Comment for Type of Reporting Person: The reported holding includes 18,182,400 shares that can be acquired from Depositary Shares Each Representing a 1/20th Interest in a Share of 7.00% Series A Mandatory Convertible Preferred Stock ("Convertible Preferred Stock") held by Jane Street Global Trading, LLC (JSGT). The % ownership calculation uses 665,014,777 outstanding shares which is based on (1) 646,832,377 shares outstanding as of June 10, 2026 as stated in the issuer's 424B5 filing on June 12, 2026; and (2) dilution of the outstanding shares due to 18,182,400 shares that can be acquired by JSGT through the Convertible Preferred Stock.

SCHEDULE 13G

CUSIP Number(s): 86800U302

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 15,728,196.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 15,728,196.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

15,728,196.00

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)

2.4 %

12

Type of Reporting Person (See Instructions)

BD

Comment for Type of Reporting Person: The % ownership calculation uses 665,014,777 outstanding shares which is based on (1) 646,832,377 shares outstanding as of June 10, 2026 as stated in the issuer's 424B5 filing on June 12, 2026; and (2) dilution of the outstanding shares due to 18,182,400 shares that can be acquired by JSGT through the Convertible Preferred Stock.

SCHEDULE 13G

CUSIP Number(s): 86800U302

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 40,895,776.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 40,895,776.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

40,895,776.00

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)

6.2 %

12

Type of Reporting Person (See Instructions)

OO

Comment for Type of Reporting Person: The reported holding includes 18,182,400 shares that can be acquired from Convertible Preferred Stock held by JSGT. The % ownership calculation uses 665,014,777 outstanding shares which is based on (1) 646,832,377 shares outstanding as of June 10, 2026 as stated in the issuer's 424B5 filing on June 12, 2026; and (2) dilution of the outstanding shares due to 18,182,400 shares that can be acquired by JSGT through the Convertible Preferred Stock.

SCHEDULE 13G

CUSIP Number(s): 86800U302

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 11,818.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 11,818.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

11,818.00

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

Comment for Type of Reporting Person: The % ownership calculation uses 665,014,777 outstanding shares which is based on (1) 646,832,377 shares outstanding as of June 10, 2026 as stated in the issuer's 424B5 filing on June 12, 2026; and (2) dilution of the outstanding shares due to 18,182,400 shares that can be acquired by JSGT through the Convertible Preferred Stock.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Super Micro Computer, Inc.
(b)	Address of issuer's principal executive offices: 980 ROCK AVENUE, SAN JOSE, CALIFORNIA, 95131.
Item 2.
(a)	Name of person filing: Jane Street Group, LLC; Jane Street Capital, LLC; Jane Street Global Trading, LLC; Jane Street Singapore Pte. Limited
(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 Jane Street Singapore Pte. Limited 2 Central Boulevard, #43-01 IOI Central Boulevard Towers (West Tower) 018916, Singapore
(c)	Citizenship: See Item 4 of Cover Page
(d)	Title of class of securities: Common Stock, $0.001 par value
(e)	CUSIP Number(s): 86800U302
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: 56,635,790.00
(b)	Percent of class: 8.5%
(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: 56,635,790.00
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 56,635,790.00
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 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:	/j/igm/intern/shared/chess/report
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	06/16/2026

Jane Street Capital, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	06/16/2026

Jane Street Global Trading, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	06/16/2026

Jane Street Singapore Pte. Ltd

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	06/16/2026