Sandisk CTO granted 1,619 restricted stock units

EVP & Chief Technology Officer Alper Ilkbahar received 1,619 restricted stock units, increasing his directly held Sandisk common shares to 42,109.

Rhea-AI Filing Summary

Sandisk Corp (symbol: SNDK) is the issuer of record for a Form 4 filing submitted to the SEC. Ilkbahar Alper reported acquisition or exercise transactions in this Form 4 filing.

Sandisk Corp (SNDK) reported that EVP & Chief Technology Officer Alper Ilkbahar received an equity compensation grant on September 17, 2026. The grant covers 1,619 restricted stock units, each representing a contingent right to one share of common stock, bringing his directly held common stock to 42,109 shares. No Rule 10b5-1 trading plan is reported for this grant.

Insider Trade Summary

Grant/Award: 1,619 shares

Grant/Award 1 txn

Insider Ilkbahar Alper

Role EVP & Chief Technology Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	1,619	$0.00	$0.00

Holdings After Transaction: Common Stock — 42,109 shares (Direct)

Footnotes (1)

1. F1. 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.

Key Figures

Restricted stock units granted: 1,619 units Shares held after transaction: 42,109 shares Grant price per unit: $0.00 per share

3 metrics

Restricted stock units granted 1,619 units Equity award to EVP & Chief Technology Officer on September 17, 2026

Shares held after transaction 42,109 shares Directly owned Sandisk common stock by Alper Ilkbahar following the award

Grant price per unit $0.00 per share Reported price for the restricted stock unit grant on September 17, 2026

Key Terms

restricted stock units, contingent right, Reporting Person, common stock

4 terms

restricted stock units financial

"Represents the grant of restricted stock units to the Reporting Person."

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

contingent right financial

"Each restricted stock unit represents a contingent right to receive one share"

Reporting Person regulatory

"Represents the grant of restricted stock units to the Reporting Person."

common stock financial

"receive one share of the Issuer's common stock."

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

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

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

Sandisk Corp disclosed that EVP & Chief Technology Officer Alper Ilkbahar received a grant of 1,619 restricted stock units of common stock on September 17, 2026 as equity compensation.

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

After the September 17, 2026 grant, Alper Ilkbahar directly holds 42,109 shares of Sandisk common stock, including the impact of the 1,619 restricted stock units reported.

What type of security was granted to the Sandisk (SNDK) executive on this Form 4?

The filing reports a grant of restricted stock units. Each restricted stock unit represents a contingent right to receive one share of Sandisk’s common stock, subject to the terms of the award.

Was the Sandisk (SNDK) Form 4 grant to Alper Ilkbahar made under a Rule 10b5-1 plan?

No. The Form 4 indicates the Rule 10b5-1 checkbox is not marked, so no Rule 10b5-1 trading plan is reported in connection with this restricted stock unit grant.

Did Alper Ilkbahar buy or sell Sandisk (SNDK) shares in the market in this Form 4?

No market purchase or sale is reported. The Form 4 shows a grant or award acquisition of 1,619 restricted stock units at a reported price of $0.00 per unit, consistent with equity compensation.

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

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Available on EDGAR 09/21/2026 - 06:03 PM Accepted by SEC EDGAR 09/21/2026 - 06:02 PM 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^*

Ilkbahar Alper

(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)
	EVP & Chief Technology Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/17/2026

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	09/17/2026		A		1,619(1)	A	$0.0	42,109	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/ Sharon Spehar Attorney-in-Fact For: Alper Ilkbahar	09/21/2026
	** 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)