Sandisk legal chief has 322 shares withheld for taxes

Sandisk Corp (SNDK) Chief Legal Officer and Secty Bernard Shek had 322 shares of common stock withheld on October 20, 2026, to pay a tax obligation incident to the vesting of securities in accordance with Rule 16b-3(e).

Rhea-AI Filing Summary

Sandisk Corp (SNDK) Chief Legal Officer and Secty Bernard Shek had 322 shares of common stock withheld on October 20, 2026, to pay a tax obligation incident to the vesting of securities in accordance with Rule 16b-3(e). He directly held 25,266 shares after the transaction. The reported per-share amount for the withheld shares was $1,365.38.

Insider Trade Summary

Tax Withholding: 322 shares

Tax Withholding 1 txn

Insider Shek Bernard

Role Chief Legal Officer and Secty

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1	322	$1,365.38	$440K

Holdings After Transaction: Common Stock — 25,266 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 tax obligation: 322 shares Reported per-share amount: $1,365.38 per share Direct common shares after transaction: 25,266 shares

3 metrics

Shares withheld for tax obligation 322 shares October 20, 2026

Reported per-share amount $1,365.38 per share Withheld common shares on October 20, 2026

Direct common shares after transaction 25,266 shares After the October 20, 2026 transaction

Key Terms

Rule 16b-3(e), tax obligation, vesting of securities

3 terms

Rule 16b-3(e) regulatory

"in accordance with Rule 16b-3(e)"

tax obligation financial

"Payment of tax obligation by withholding securities"

vesting of securities technical

"incident to the vesting of securities"

FAQ

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

How many SNDK shares did Bernard Shek have withheld and why?

Bernard Shek had 322 common shares withheld on October 20, 2026, to pay a tax obligation incident to the vesting of securities under Rule 16b-3(e). The reported per-share amount was $1,365.38, and he directly held 25,266 shares afterward.

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

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Available on EDGAR 10/22/2026 - 06:08 PM EDT Accepted by SEC EDGAR 10/22/2026 - 06:07 PM EDT Learn about SEC filing dates

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^*

Shek Bernard

(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)
	Chief Legal Officer and Secty

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/20/2026

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	10/20/2026		F		322(1)	D	$1,365.38	25,266	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: Bernard Shek	10/22/2026
	** 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)