Jane Street entities disclose 7.4M-share Sandisk Corp (SNDK) position at 5.0%

Rhea-AI Filing Summary

Jane Street Group, LLC and affiliated entities report a significant ownership position in Sandisk Corp common stock. As of July 30, 2026, they beneficially owned 7,409,437 shares of Sandisk Corp, representing 5.0% of the outstanding common stock.

The filing shows no sole voting or dispositive power over these shares. Instead, Jane Street entities have shared voting and shared dispositive power over all 7,409,437 shares. Within the group, Jane Street Capital, LLC reports 5,886,992 shares (4.0%), Jane Street Global Trading, LLC 1,284,343 shares (0.9%), and Leonard Street Holdings 238,102 shares (0.2%), all with shared voting and dispositive power.

Key Figures

Beneficial ownership shares: 7,409,437 shares Percent of class owned: 5.0% Jane Street Capital holdings: 5,886,992 shares +4 more

7 metrics

Beneficial ownership shares 7,409,437 shares Sandisk Corp common stock beneficially owned by Jane Street entities as of July 30, 2026

Percent of class owned 5.0% Portion of Sandisk Corp common stock class beneficially owned by Jane Street entities

Jane Street Capital holdings 5,886,992 shares Sandisk Corp common stock beneficially owned by Jane Street Capital, LLC (4.0% of class)

Jane Street Global Trading holdings 1,284,343 shares Sandisk Corp common stock beneficially owned by Jane Street Global Trading, LLC (0.9% of class)

Leonard Street Holdings holdings 238,102 shares Sandisk Corp common stock beneficially owned by Leonard Street Holdings (0.2% of class)

Sole voting power 0 shares Shares of Sandisk Corp over which the reporting persons have sole voting power

Shared voting power 7,409,437 shares Shares of Sandisk Corp over which the reporting persons have shared voting power

Key Terms

beneficially owned, shared voting power, shared dispositive power, parent holding company or control person, +1 more

5 terms

beneficially owned financial

"Item 4. | Ownership (a) | Amount beneficially owned: 7,409,437.00"

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

"6 | Shared Voting Power 7,409,437.00"

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

"8 | Shared Dispositive Power 7,409,437.00"

parent holding company or control person regulatory

"being Reported on by the Parent Holding Company or Control Person."

percent of class financial

"Item 4. | Ownership (a) | Amount beneficially owned... (b) | Percent of class: 5.0%"

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.

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

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Available on EDGAR 08/05/2026 - 04:50 PM Accepted by SEC EDGAR 08/05/2026 - 04:50 PM Learn about SEC filing dates

FAQ

How much of Sandisk Corp (SNDK) does Jane Street beneficially own?

Jane Street Group, LLC and its affiliates beneficially own 7,409,437 shares of Sandisk Corp common stock, representing 5.0% of the outstanding class, all held with shared voting and dispositive power.

Which Jane Street entities are listed as owners of Sandisk Corp (SNDK) shares?

The filing lists Jane Street Group, LLC, Jane Street Capital, LLC, Jane Street Global Trading, LLC, and Leonard Street Holdings as reporting persons, all organized in Delaware and holding Sandisk Corp common stock with shared voting and dispositive power.

What percentage of Sandisk Corp (SNDK) is held by Jane Street Capital, LLC?

Jane Street Capital, LLC reports beneficial ownership of 5,886,992 shares of Sandisk Corp common stock, equal to 4.0% of the class, with zero sole voting power and full shared voting and dispositive power over those shares.

Does Jane Street have sole or shared voting power over its Sandisk Corp (SNDK) stake?

The Jane Street entities report 0 shares with sole voting or dispositive power and 7,409,437 shares with shared voting and shared dispositive power, indicating decisions over the stake are made on a shared basis.

How many Sandisk Corp (SNDK) shares are held by Jane Street Global Trading, LLC?

Jane Street Global Trading, LLC is reported as beneficially owning 1,284,343 shares of Sandisk Corp common stock, representing 0.9% of the outstanding class, all with shared voting and shared dispositive power.

What is Leonard Street Holdings’ position in Sandisk Corp (SNDK)?

Leonard Street Holdings is reported as beneficially owning 238,102 shares of Sandisk Corp common stock, equal to 0.2% of the class, with no sole voting or dispositive power and full shared voting and dispositive power.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

Sandisk Corp

(Name of Issuer)

Common Stock, $0.01 Par Value Per Share

(Title of Class of Securities)

80004C200

(CUSIP Number)

07/30/2026

(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): 80004C200

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 7,409,437.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 7,409,437.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

7,409,437.00

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)

5.0 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

CUSIP Number(s): 80004C200

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 5,886,992.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 5,886,992.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

5,886,992.00

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)

4.0 %

12

Type of Reporting Person (See Instructions)

BD

SCHEDULE 13G

CUSIP Number(s): 80004C200

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 1,284,343.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 1,284,343.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,284,343.00

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)

0.9 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 80004C200

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 238,102.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 238,102.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

238,102.00

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)

0.2 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Sandisk Corp
(b)	Address of issuer's principal executive offices: 951 SANDISK DRIVE, MILPITAS, CALIFORNIA, 95035.
Item 2.
(a)	Name of person filing: Jane Street Group, LLC; Jane Street Capital, LLC; Jane Street Global Trading, LLC; Leonard Street Holdings, LP
(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 Leonard Street Holdings, LP 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, $0.01 Par Value Per Share
(e)	CUSIP Number(s): 80004C200
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: 7,409,437.00
(b)	Percent of class: 5.0%
(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: 7,409,437.00
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 7,409,437.00
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
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:	08/05/2026

Jane Street Capital, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/05/2026

Jane Street Global Trading, LLC

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/05/2026

Leonard Street Holdings, LP

Signature:	/s/ Jeremy Kahn
Name/Title:	Jeremy Kahn (Authorized Signatory)
Date:	08/05/2026