[Form 4] Sandisk Corp Insider Trading Activity

Rhea-AI Filing Summary

Sandisk Corp (SNDK) executive Alper Ilkbahar reported tax-related share withholding transactions. As EVP and Chief Technology Officer, he had 162 shares of common stock withheld on 11/20/2025 at $195.96 per share and 319 shares withheld on 11/21/2025 at $200.27 per share. These disposals were coded as "F," meaning they were used to pay tax obligations tied to vesting equity awards under Rule 16b-3(e). After these transactions, he beneficially owned 59,945 shares and then 59,626 shares, all held directly.

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)
11/20/2025

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	11/20/2025		F		162(1)	D	$195.96	59,945	D
Common Stock	11/21/2025		F		319(1)	D	$200.27	59,626	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: Alper Ilkbahar	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 did Sandisk (SNDK) disclose in this Form 4 filing?

The filing reports that Alper Ilkbahar, Sandisk's EVP and Chief Technology Officer, had company shares withheld to cover tax obligations from vesting equity awards.

How many Sandisk (SNDK) shares were disposed of in the reported transactions?

The Form 4 shows 162 shares of common stock disposed of on 11/20/2025 and 319 shares disposed of on 11/21/2025, both through tax withholding.

At what prices were the Sandisk (SNDK) shares withheld for taxes?

The reported prices were $195.96 per share for 162 shares on 11/20/2025 and $200.27 per share for 319 shares on 11/21/2025.

How many Sandisk (SNDK) shares does Alper Ilkbahar own after these transactions?

Following the reported tax-withholding transactions, Alper Ilkbahar beneficially owned 59,626 shares of Sandisk common stock directly.

What does transaction code "F" mean in this Sandisk Form 4?

Transaction code "F" indicates a payment of tax obligation by withholding securities in connection with the vesting of previously granted equity awards, consistent with Rule 16b-3(e).

Is this Sandisk (SNDK) Form 4 filing a sale into the open market?

No. The Form 4 explains that the transactions reflect shares withheld to satisfy tax obligations when equity awards vested, rather than discretionary open-market sales.