SNDK EVP & CFO Reports Tax Withholding of 1,588 Shares on Form 4

Rhea-AI Filing Summary

SanDisk Corp (SNDK) executive Luis F. Visoso, EVP and Chief Financial Officer, reported an automatic share withholding related to equity compensation. On 11/21/2025, 1,588 shares of common stock were disposed of at $200.27 per share, coded as transaction type “F,” which reflects shares withheld to cover tax obligations. After this tax-related withholding, Visoso beneficially owns 168,240 shares of SanDisk common stock in direct ownership. The explanation clarifies that the shares were withheld to pay taxes upon vesting of securities under Rule 16b-3(e), meaning this reflects tax settlement rather than an open-market sale.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Visoso Luis Felipe

Role EVP and Chief Financial Office

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	1,588	$200.27	$318K

Holdings After Transaction: Common Stock — 168,240 shares (Direct)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Visoso Luis Felipe

(Last) (First) (Middle)

C/O SANDISK CORPORATION

951 SANDISK DRIVE

(Street)

MILPITAS CA 95035

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Sandisk Corp [ SNDK ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP and Chief Financial Office

3. Date of Earliest Transaction (Month/Day/Year)
11/21/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/21/2025		F		1,588(1)	D	$200.27	168,240	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e).

	By: /s/ Van Huynh Attorney-in-Fact For: Luis F. Visoso	11/24/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did SNDK report for Luis F. Visoso?

The report shows that on 11/21/2025, Luis F. Visoso had 1,588 shares of SanDisk common stock withheld at $200.27 per share to satisfy tax obligations related to vesting equity.

Was the SNDK insider transaction an open-market sale?

No. The transaction is coded “F” and the explanation states it was a payment of tax obligation by withholding securities upon vesting under Rule 16b-3(e), not a market sale.

How many SanDisk (SNDK) shares does Luis F. Visoso own after this transaction?

Following the tax withholding transaction, Luis F. Visoso beneficially owns 168,240 shares of SanDisk common stock, held in direct ownership.

What position does Luis F. Visoso hold at SanDisk Corp (SNDK)?

Luis F. Visoso is reported as an officer of SanDisk Corp, with the title EVP and Chief Financial Officer.

Why were 1,588 SNDK shares withheld from Luis F. Visoso?

The filing explains that the 1,588 shares were withheld to pay tax obligations triggered by the vesting of securities, in accordance with Rule 16b-3(e).

Is the SNDK Form 4 filed by one or multiple reporting persons?

The Form 4 is indicated as filed by one reporting person, covering the holdings and transaction of Luis F. Visoso only.