Jane Street Group (SNBRQ) discloses 2.0% beneficial stake in Sleep Number

Rhea-AI Filing Summary

Jane Street Group, LLC and its affiliates Jane Street Capital, LLC and Jane Street Global Trading, LLC reported beneficial ownership of Sleep Number Corp common stock on an amended Schedule 13G. The group reported beneficial ownership of 452,013 shares, representing 2.0% of Sleep Number’s common stock.

The filing states the group has shared voting power and shared dispositive power over all 452,013 shares, with no sole voting or dispositive power. Jane Street Capital, LLC accounts for 451,999 shares and Jane Street Global Trading, LLC for 14 shares, all under Jane Street Group, LLC as the parent holding company.

Key Figures

Shares beneficially owned: 452,013 shares Percent of class: 2.0% Shared voting power: 452,013 shares +3 more

6 metrics

Shares beneficially owned 452,013 shares Beneficial ownership of Sleep Number Corp common stock reported by Jane Street entities

Percent of class 2.0% Percentage of Sleep Number Corp common stock beneficially owned

Shared voting power 452,013 shares Shares over which Jane Street has shared power to vote or direct the vote

Shared dispositive power 452,013 shares Shares over which Jane Street has shared power to dispose or direct disposition

Jane Street Capital holdings 451,999 shares Shares of Sleep Number Corp beneficially owned by Jane Street Capital, LLC

Jane Street Global Trading holdings 14 shares Shares of Sleep Number Corp beneficially owned by Jane Street Global Trading, LLC

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: 452,013.00"

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

"Shared Voting Power 452,013.00"

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

"Shared Dispositive Power 452,013.00"

parent holding company financial

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

percent of class financial

"Percent of class: 2.0%"

Percent of class is the portion of a specific category of securities—such as a company’s common shares, preferred shares, or a bond series—that takes part in or approves a corporate action (vote, consent, tender, etc.). Investors watch this number because it reveals how much support or opposition exists within that particular shareholder group; like counting how many members of a club back a proposal, it can determine whether a plan passes or how influence is distributed.

FAQ

What stake in Sleep Number Corp (SNBRQ) does Jane Street report on this Schedule 13G/A?

Jane Street entities report beneficial ownership of 452,013 shares of Sleep Number Corp common stock, representing 2.0% of the outstanding class, with shared voting and dispositive power over all reported shares.

Which Jane Street entities are listed as reporting persons for Sleep Number Corp (SNBRQ)?

The reporting persons are Jane Street Group, LLC, Jane Street Capital, LLC, and Jane Street Global Trading, LLC, all organized in Delaware, with principal offices at 250 Vesey Street, 3rd Floor, New York, NY 10281.

How is voting power over Sleep Number Corp (SNBRQ) shares allocated for Jane Street?

The filing states Jane Street has 0 shares with sole voting power and 452,013 shares with shared voting power. It likewise reports no sole dispositive power and shared dispositive power over the same 452,013 shares.

Does Jane Street report ownership of more than 5% of Sleep Number Corp (SNBRQ)?

No. Jane Street reports beneficial ownership of 2.0% of Sleep Number’s common stock and explicitly indicates ownership of 5 percent or less of the class under the relevant item in the Schedule 13G/A.

Which Jane Street subsidiaries acquired the Sleep Number Corp (SNBRQ) shares?

The Schedule 13G/A identifies Jane Street Capital, LLC and Jane Street Global Trading, LLC as the subsidiaries that acquired the securities, together accounting for the reported 452,013 beneficially owned shares.

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Available on EDGAR 08/10/2026 - 04:54 PM Accepted by SEC EDGAR 08/10/2026 - 04:53 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)

Sleep Number Corp

(Name of Issuer)

Common Stock, par value $0.01

(Title of Class of Securities)

83125X103

(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): 83125X103

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 452,013.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 452,013.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

452,013.00

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)

2.0 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 83125X103

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 451,999.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 451,999.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

451,999.00

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)

2.0 %

12

Type of Reporting Person (See Instructions)

BD

SCHEDULE 13G

CUSIP Number(s): 83125X103

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 14.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 14.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

14.00

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: Sleep Number Corp
(b)	Address of issuer's principal executive offices: 1001 THIRD AVENUE SOUTH, 1001 THIRD AVENUE SOUTH, MINNEAPOLIS, MINNESOTA, 55404.
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: Common Stock, par value $0.01
(e)	CUSIP No.: 83125X103
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: 452,013.00
(b)	Percent of class: 2.0%
(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: 452,013.00
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 452,013.00
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
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:	08/10/2026

Jane Street Capital, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/10/2026

Jane Street Global Trading, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/10/2026