Sandisk (SNDK) CTO Ilkbahar reports 566-share tax-withholding disposition

Rhea-AI Filing Summary

Sandisk Corp executive vice president and chief technology officer Alper Ilkbahar reported a small share disposition related to taxes. On this Form 4, 566 shares of common stock were withheld at $632.38 per share to satisfy tax obligations upon vesting. After this tax-withholding transaction, Ilkbahar directly holds 58,062 shares of Sandisk common stock.

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

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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^*

Ilkbahar Alper

(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, Chief Technology Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/25/2026

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	02/25/2026		F		566(1)	D	$632.38	58,062	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: Alper Ilkbahar	02/27/2026
	** 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).
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FAQ

What insider transaction did Sandisk (SNDK) report for Alper Ilkbahar?

Sandisk reported that EVP and chief technology officer Alper Ilkbahar had 566 shares of common stock withheld to cover tax obligations upon vesting. The transaction is a tax-withholding disposition, not an open-market sale or purchase.

What does transaction code F mean in the Sandisk (SNDK) Form 4?

Transaction code F indicates a payment of tax liability or exercise price by delivering securities. In this case, 566 Sandisk shares were withheld to satisfy tax obligations related to vesting, under Rule 16b-3(e), rather than being sold on the open market.

At what price were the Sandisk (SNDK) shares withheld for Alper Ilkbahar’s taxes?

The 566 Sandisk common shares were valued at $632.38 per share for the tax-withholding disposition. This price is used to determine the value of shares withheld to meet the executive’s tax obligation associated with the vesting of equity awards.

How many Sandisk (SNDK) shares does Alper Ilkbahar own after this Form 4 transaction?

After the tax-withholding disposition of 566 shares, Alper Ilkbahar directly holds 58,062 Sandisk common shares. This figure reflects his remaining direct ownership following the automatic share withholding transaction related to equity award vesting.

Was the Sandisk (SNDK) Form 4 transaction an open-market sale by Alper Ilkbahar?

No, the transaction was not an open-market sale. The Form 4 describes a tax-withholding disposition, where 566 shares were withheld to satisfy tax obligations upon vesting, in accordance with Rule 16b-3(e), rather than voluntarily sold in the market.