Sandisk Corp (SNDK) CLO has 41 shares withheld for tax obligations

Rhea-AI Filing Summary

Sandisk Corp Chief Legal Officer and Secretary Bernard Shek reported a routine tax-related share disposition. On 2026-04-20, 41 shares of common stock were withheld at $913.02 per share to satisfy tax obligations tied to vesting, under Rule 16b-3(e). After this withholding, Shek directly owned 33,259 shares of Sandisk common stock. This was not an open-market sale but an automatic payment of tax liability using shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Shek Bernard

Role Chief Legal Officer & Secty

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	41	$913.02	$37K

Holdings After Transaction: Common Stock — 33,259 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares withheld for taxes: 41 shares Withholding price per share: $913.02 per share Shares owned after transaction: 33,259 shares +2 more

5 metrics

Shares withheld for taxes 41 shares Tax-withholding disposition on 2026-04-20

Withholding price per share $913.02 per share Value applied to withheld shares

Shares owned after transaction 33,259 shares Direct holdings following tax withholding

Transaction code F Payment of tax liability by delivering securities

Transaction direction dispose Tax-withholding disposition, not open-market sale

Key Terms

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

4 terms

Rule 16b-3(e) regulatory

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

tax obligation financial

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

withholding securities financial

"by withholding securities incident to the vesting of securities"

tax-withholding disposition financial

"transaction_action": "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

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
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 & Secty

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/20/2026

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	04/20/2026		F		41(1)	D	$913.02	33,259	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: Bernard Shek	04/21/2026
	** 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)

FAQ

What insider transaction did Sandisk Corp (SNDK) report for Bernard Shek?

Sandisk Corp reported that Chief Legal Officer Bernard Shek had 41 common shares withheld to cover taxes on vested stock. The disposition was an automatic tax payment using shares, not an open-market purchase or sale, and followed Rule 16b-3(e).

How many Sandisk Corp (SNDK) shares were withheld for Bernard Shek’s taxes?

A total of 41 Sandisk Corp common shares were withheld from Bernard Shek to satisfy tax obligations linked to vesting. The shares were valued at $913.02 each, reflecting a routine tax-withholding disposition rather than a discretionary trade in the open market.

What Sandisk Corp (SNDK) share price applied to Bernard Shek’s tax withholding?

The tax-withholding disposition for Bernard Shek used a Sandisk Corp share price of $913.02. This value per share was applied to 41 withheld shares to pay his tax obligation arising from vesting, according to the Form 4 disclosure and related footnote.

How many Sandisk Corp (SNDK) shares does Bernard Shek own after this Form 4?

Following the reported tax-withholding disposition, Bernard Shek directly owns 33,259 Sandisk Corp common shares. This figure reflects his position after 41 shares were withheld to cover tax obligations related to the vesting of previously granted securities.

Was Bernard Shek’s Sandisk Corp (SNDK) transaction an open-market sale?

No, the transaction was not an open-market sale. The Form 4 describes it as a tax-withholding disposition, where 41 shares were withheld to pay tax obligations upon vesting, in accordance with Rule 16b-3(e), rather than shares being sold on the market.

What does Rule 16b-3(e) mean for Sandisk Corp (SNDK) insider transactions?

Rule 16b-3(e) allows insiders to satisfy tax or exercise costs by delivering or withholding securities without being treated like open-market trades. In this case, 41 Sandisk shares were withheld from Bernard Shek to cover taxes when his securities vested.