[Form 4] Sandisk Corp Insider Trading Activity

Rhea-AI Filing Summary

SanDisk Corp (SNDK) reported an equity award to one of its directors. On 11/18/2025, the reporting person received 1,143 shares of SanDisk common stock in the form of restricted stock units. The filing notes that each restricted stock unit represents a contingent right to receive one share of common stock, meaning the shares will typically be delivered after vesting conditions are met.

After this grant, the director beneficially owns 4,914 shares of SanDisk common stock, held directly. The transaction was reported on a Form 4 filed by a single reporting person and reflects routine equity-based compensation for board service rather than an open-market purchase or sale.

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

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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^*

Cassidy Richard B. II

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
11/18/2025

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	11/18/2025		A		1,143(1)	A	$0.0	4,914	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. Represents the grant of restricted stock units to the Reporting Person. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

	By: /s/ Van Huynh Attorney-in-Fact For: Richard B. Cassidy II	11/19/2025
	** 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 insider transaction did SanDisk Corp (SNDK) report on this Form 4?

The Form 4 reports that a SanDisk Corp director received 1,143 restricted stock units, each representing a contingent right to receive one share of the companys common stock.

When did the reported SanDisk (SNDK) equity grant take place?

The equity grant to the director occurred on 11/18/2025, as shown in Table I of the Form 4.

How many SanDisk (SNDK) shares does the director own after this transaction?

Following the reported transaction, the director beneficially owns 4,914 shares of SanDisk common stock in direct ownership.

What type of security was granted to the SanDisk (SNDK) director?

The director received restricted stock units, which are rights to receive shares of SanDisk common stock upon satisfaction of applicable vesting or other conditions.

Was the SanDisk (SNDK) Form 4 filed by one or multiple reporting persons?

The Form 4 was filed by one reporting person, as indicated in the section on individual or joint/group filing.

Is this SanDisk (SNDK) transaction a purchase, sale, or an equity award?

The transaction is an equity award, specifically a grant of restricted stock units, shown as an acquisition of 1,143 common shares at a price of $0.0.