Sandisk (SNDK) director Necip Sayiner sells 579 shares, holds 2,900

Rhea-AI Filing Summary

Sandisk Corp director Necip Sayiner reported an open-market sale of Common Stock. On May 8, 2026, he sold 579 shares at $1503.11 per share. After this transaction, he directly owns 2,900 Sandisk shares, indicating he retains a meaningful ongoing stake.

Insider Trade Summary

Net Seller: 579 shares ($870,301)

Net Sell 1 txn

Insider Sayiner Necip

Role null

Sold 579 shs ($870K)

Type	Security	Shares	Price	Value
Sale	Common Stock	579	$1,503.11	$870K

Holdings After Transaction: Common Stock — 2,900 shares (Direct, null)

Footnotes (1)

Key Figures

Shares sold: 579 shares Sale price: $1503.11 per share Shares owned after sale: 2,900 shares +1 more

4 metrics

Shares sold 579 shares Open-market sale of Sandisk Common Stock on May 8, 2026

Sale price $1503.11 per share Reported transaction price for the 579 shares sold

Shares owned after sale 2,900 shares Direct holdings following the May 8, 2026 transaction

Net share change -579 shares Net result of reported Form 4 transactions

Key Terms

open-market sale, Common Stock, non-derivative, Form 4

4 terms

open-market sale financial

"transaction_action: "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Common Stock financial

"security_title: "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.

non-derivative financial

"transaction_type: "non-derivative""

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

Form 4 Insider Transactions: What Each Field Means →

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^*

Sayiner Necip

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/08/2026

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	05/08/2026		S		579	D	$1,503.11	2,900	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:

	By: /s/ Van Huynh Attorney-in-Fact For: Necip Sayiner	05/11/2026
	** 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)

FAQ

What did Sandisk (SNDK) director Necip Sayiner report in this Form 4?

Necip Sayiner reported an open-market sale of Sandisk Common Stock. He sold 579 shares on May 8, 2026 at $1503.11 per share, and after the transaction he directly holds 2,900 shares in the company.

How many Sandisk (SNDK) shares did Necip Sayiner sell and at what price?

He sold 579 shares of Sandisk Common Stock. The reported sale price was $1503.11 per share in an open-market transaction dated May 8, 2026, as disclosed in the Form 4 filing.

How many Sandisk (SNDK) shares does Necip Sayiner own after the reported sale?

Following the reported sale, Necip Sayiner directly owns 2,900 Sandisk shares. This figure reflects his remaining direct holdings after disposing of 579 shares in the May 8, 2026 open-market transaction.

Was Necip Sayiner’s Sandisk (SNDK) transaction an open-market sale?

Yes. The Form 4 describes the transaction as an open-market sale of non-derivative Sandisk Common Stock, coded “S” and labeled as a sale in open market or private transaction at $1503.11 per share.

Does this Sandisk (SNDK) Form 4 show any option exercises or derivative trades?

No. The Form 4 only reports a non-derivative transaction in Common Stock. The derivative summary section is empty, indicating no option exercises, conversions, or other derivative transactions in this particular filing.