Sandisk Corp (SNDK) legal officer sells 600 shares under 10b5-1 plan

Rhea-AI Filing Summary

Sandisk Corp Chief Legal Officer & Secretary Bernard Shek reported selling 600 shares of common stock on August 3, 2026 at $1,162.16 per share in an open-market or private transaction. The sale was made under a Rule 10b5-1 trading plan adopted March 4, 2026 and left him holding 30,915 shares directly.

Insider Trade Summary 10b5-1

Net Seller: 600 shares

Net Sell 1 txn

Insider Shek Bernard

Role Chief Legal Officer & Secty

Sold 600 shs ($697K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	600	$1,162.16	$697K

Holdings After Transaction: Common Stock — 30,915 shares (Direct)

Footnotes (1)

1. F1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 4, 2026.

Key Figures

Shares sold: 600 shares Sale price: $1,162.16 per share Shares owned after sale: 30,915 shares +1 more

4 metrics

Shares sold 600 shares Common stock sale on August 3, 2026

Sale price $1,162.16 per share Reported transaction price for common stock

Shares owned after sale 30,915 shares Direct holdings following the reported transaction

10b5-1 plan adoption date March 4, 2026 Date Bernard Shek adopted the trading plan governing this sale

Key Terms

Rule 10b5-1 trading plan, open market or private transaction, Chief Legal Officer & Secty

3 terms

Rule 10b5-1 trading plan regulatory

"were effected pursuant to a Rule 10b5-1 trading plan adopted"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

open market or private transaction financial

"Sale in open market or private transaction"

Chief Legal Officer & Secty other

"officer_title": "Chief Legal Officer & Secty""

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/04/2026 - 08:19 PM Accepted by SEC EDGAR 08/04/2026 - 08:18 PM Learn about SEC filing dates

FAQ

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

Sandisk Corp reported that Chief Legal Officer Bernard Shek sold 600 shares of common stock on August 3, 2026. The transaction was an open-market or private sale executed under a Rule 10b5-1 trading plan he previously adopted.

At what price did Bernard Shek sell Sandisk Corp (SNDK) shares?

Bernard Shek sold his Sandisk Corp shares at $1,162.16 per share. This per-share price applied to the 600 common shares sold in the reported open-market or private transaction on August 3, 2026.

How many Sandisk Corp (SNDK) shares does Bernard Shek hold after this sale?

After the reported transaction, Bernard Shek directly holds 30,915 shares of Sandisk Corp common stock. This figure reflects his position immediately following the 600-share sale on August 3, 2026.

Was the Sandisk Corp (SNDK) insider sale made under a Rule 10b5-1 plan?

Yes. The filing states the sale was effected under a Rule 10b5-1 trading plan. The plan was adopted by Bernard Shek on March 4, 2026, indicating the trade followed a pre-arranged schedule.

What is Bernard Shek’s role at Sandisk Corp (SNDK) in this Form 4?

In this Form 4, Bernard Shek is identified as Sandisk Corp’s Chief Legal Officer & Secretary. He is not listed as a director or 10% owner, and the reported transaction involves his direct holdings of 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

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).

X

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)
08/03/2026

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	08/03/2026		S(1)		600	D	$1,162.16	30,915	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. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on March 4, 2026.

	By: /s/ Van Huynh Attorney-in-Fact For: Bernard Shek	08/04/2026
	** 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)