Jane Street reports 7.4% stake in Super Micro

Jane Street Group, LLC and affiliates report a significant ownership position in Super Micro Computer, Inc. common stock.

Rhea-AI Filing Summary

Jane Street Group, LLC and affiliates report a significant ownership position in Super Micro Computer, Inc. common stock. The group discloses beneficial ownership of 49,247,797.97 shares of common stock, representing 7.4% of the class. All of these shares are held with shared, and not sole, power to vote and dispose. The reported holdings include 16,046,114.97 shares that can be acquired through Depositary Shares representing a 1/20th interest in 7.00% Series A Mandatory Convertible Preferred Stock held by Jane Street Global Trading, LLC. The ownership percentage is based on 662,878,515 shares outstanding, derived from 646,832,377 shares outstanding as of June 10, 2026 plus the additional shares acquirable by Jane Street Global Trading through the convertible preferred stock.

Key Figures

Beneficial ownership: 49,247,797.97 shares Percent of class: 7.4% Shares outstanding base: 662,878,515 shares +4 more

7 metrics

Beneficial ownership 49,247,797.97 shares Common stock beneficially owned by Jane Street Group and affiliates

Percent of class 7.4% Portion of SMCI common stock beneficially owned by Jane Street Group

Shares outstanding base 662,878,515 shares Figure used to calculate ownership percentage, including dilutive shares

Common shares outstanding 646,832,377 shares Shares outstanding as of June 10, 2026 from issuer’s 424B5

Shares from convertible preferred 16,046,114.97 shares Shares acquirable via Depositary Shares of 7.00% Series A Mandatory Convertible Preferred Stock

Jane Street Global Trading holdings 37,119,426.97 shares SMCI shares beneficially owned by Jane Street Global Trading, LLC (5.6%)

Jane Street Capital holdings 12,128,236.00 shares SMCI shares beneficially owned by Jane Street Capital, LLC (1.8%)

Key Terms

beneficially owned, Mandatory Convertible Preferred Stock, Depositary Shares, shared voting power, +1 more

5 terms

beneficially owned financial

"Amount beneficially owned: 49,247,797.97"

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.

Mandatory Convertible Preferred Stock financial

"7.00% Series A Mandatory Convertible Preferred Stock ("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.

Depositary Shares financial

"acquired from Depositary Shares Each Representing a 1/20th Interest"

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.

shared voting power financial

"Shared Voting Power 49,247,797.97"

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

"Shared Dispositive Power 49,247,797.97"

FAQ

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

What percentage of Super Micro Computer (SMCI) does Jane Street Group report owning?

Jane Street Group and its affiliates report beneficial ownership of 7.4% of Super Micro Computer’s common stock, based on 662,878,515 shares outstanding, including shares issuable from mandatory convertible preferred stock.

How many SMCI shares does Jane Street Group beneficially own according to this Schedule 13G/A?

Jane Street Group reports beneficial ownership of 49,247,797.97 SMCI common shares. This total reflects both existing common shares and 16,046,114.97 shares that can be acquired from Depositary Shares tied to mandatory convertible preferred stock.

What is Jane Street Global Trading, LLC’s individual stake in Super Micro Computer (SMCI)?

Jane Street Global Trading, LLC reports beneficial ownership of 37,119,426.97 SMCI shares, equal to 5.6% of the common stock. Its position includes 16,046,114.97 shares acquirable via Depositary Shares of 7.00% Series A Mandatory Convertible Preferred Stock.

How was the ownership percentage in SMCI calculated for the Jane Street entities?

The ownership percentage uses a base of 662,878,515 SMCI shares, combining 646,832,377 shares outstanding as of June 10, 2026 with 16,046,114.97 additional shares that Jane Street Global Trading can acquire through mandatory convertible preferred stock.

Do Jane Street entities have sole or shared voting power over their SMCI shares?

The Jane Street entities report 0 shares with sole voting or dispositive power and 49,247,797.97 shares with shared voting and dispositive power, indicating all reported SMCI shares are controlled on a shared basis.

What are the reported holdings of Jane Street Capital, LLC in Super Micro Computer (SMCI)?

Jane Street Capital, LLC reports beneficial ownership of 12,128,236.00 SMCI shares, representing 1.8% of the common stock. All of these shares are reported with shared voting and shared dispositive power, and no sole power.

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

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Available on EDGAR 08/13/2026 - 04:26 PM Accepted by SEC EDGAR 08/13/2026 - 04:26 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. 2)

Super Micro Computer, Inc.

(Name of Issuer)

Common Stock, $0.001 par value

(Title of Class of Securities)

(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 No.

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 49,247,797.97
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 49,247,797.97

9

Aggregate Amount Beneficially Owned by Each Reporting Person

49,247,797.97

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)

7.4 %

12

Type of Reporting Person (See Instructions)

HC

Comment for Type of Reporting Person: The reported holding includes 16,046,114.97 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 662,878,515 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 16,046,114.97 shares that can be acquired by JSGT through the Convertible Preferred Stock.

SCHEDULE 13G

CUSIP No.

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 12,128,236.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 12,128,236.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

12,128,236.00

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)

1.8 %

12

Type of Reporting Person (See Instructions)

BD

Comment for Type of Reporting Person: The % ownership calculation uses 662,878,515 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 16,046,114.97 shares that can be acquired by JSGT through the Convertible Preferred Stock.

SCHEDULE 13G

CUSIP No.

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 37,119,426.97
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 37,119,426.97

9

Aggregate Amount Beneficially Owned by Each Reporting Person

37,119,426.97

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)

5.6 %

12

Type of Reporting Person (See Instructions)

BD

Comment for Type of Reporting Person: The reported holding includes 16,046,114.97 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 662,878,515 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 16,046,114.97 shares that can be acquired by JSGT through the Convertible Preferred Stock.

SCHEDULE 13G

CUSIP No.

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 135.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 135.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

135.00

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 662,878,515 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 16,046,114.97 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, 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 No.:
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: 49,247,797.97
(b)	Percent of class: 7.4%
(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: 49,247,797.97
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 49,247,797.97
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:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/13/2026

Jane Street Capital, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/13/2026

Jane Street Global Trading, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/13/2026

Jane Street Singapore Pte. Ltd

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/13/2026