Sandisk CFO withholds 5,838 shares for taxes

Sandisk’s EVP & CFO had shares withheld to cover taxes on vesting, and continues to hold a six-figure share position.

Available on EDGAR 09/08/2026 - 08:48 PM EDT Accepted by SEC EDGAR 09/08/2026 - 08:48 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Sandisk Corp (SNDK) reported an insider Form 4 for EVP & CFO Luis Felipe Visoso. On September 3, 2026, 5,838 shares of common stock were disposed of through share withholding to satisfy a tax obligation incident to vesting under Rule 16b-3(e). After this transaction, Visoso directly owns 131,976 shares of Sandisk common stock. No trades were reported under a Rule 10b5-1 trading plan.

Insider Trade Summary

Tax Withholding: 5,838 shares

Tax Withholding 1 txn

Insider Visoso Luis Felipe

Role EVP & CFO

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1	5,838	$1,554.99	$9.08M

Holdings After Transaction: Common Stock — 131,976 shares (Direct)

Footnotes (1)

1. F1. Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e).

Key Figures

Shares withheld for taxes: 5,838 shares Reported price per share: $1,554.99 per share Holdings after transaction: 131,976 shares +1 more

4 metrics

Shares withheld for taxes 5,838 shares Common stock withheld on September 3, 2026 to satisfy tax obligation

Reported price per share $1,554.99 per share Filed as the price for the tax-withholding disposition on September 3, 2026

Holdings after transaction 131,976 shares Directly owned by Luis Felipe Visoso following the September 3, 2026 transaction

Shares involved in exercise-price-or-tax-liability events 5,838 shares Total shares reported under code F in the transaction summary

Key Terms

Rule 16b-3(e), tax obligation, withholding securities, Form 4

4 terms

Rule 16b-3(e) regulatory

"withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e)"

tax obligation financial

"Payment of tax obligation by withholding securities incident to the vesting"

withholding securities financial

"Payment of tax obligation by withholding securities incident to the vesting"

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

FAQ

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

What insider transaction did Sandisk Corp (SNDK) report for Luis Felipe Visoso?

Sandisk reported that EVP & CFO Luis Felipe Visoso had 5,838 shares of common stock withheld on September 3, 2026 to pay a tax obligation related to vesting, categorized as a disposition under code F.

How many Sandisk (SNDK) shares does Luis Felipe Visoso hold after this Form 4 transaction?

After the reported tax-withholding transaction, Luis Felipe Visoso directly holds 131,976 shares of Sandisk common stock.

Was the Sandisk (SNDK) Form 4 transaction by Luis Felipe Visoso a market sale?

No. The Form 4 describes the event as payment of a tax obligation by withholding securities upon vesting under Rule 16b-3(e), not as an open-market sale.

What transaction code is used in this Sandisk (SNDK) Form 4 for Luis Felipe Visoso?

The transaction is reported with code F, which indicates payment of tax liability by delivering or withholding securities in connection with an equity award event.

Was a Rule 10b5-1 trading plan involved in this Sandisk (SNDK) Form 4 transaction?

No. The filing indicates no Rule 10b5-1 trading plan for this transaction; it is characterized instead as tax withholding upon vesting.

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

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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
Estimated average burden
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 CALIFORNIA 95035

(City) (State) (Zip)

UNITED STATES

(Country)

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 & CFO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/03/2026

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

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

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

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	09/03/2026		F		5,838(1)	D	$1,554.99	131,976	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/ Sharon Spehar Attorney-in-Fact For: Luis F. Visoso	09/08/2026
	** 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.
* Form 4: SEC 1474 (03-26)