Sandisk CEO sells 33,838 shares under 10b5-1 plan

Sandisk’s chairman and CEO executed pre-planned sales totaling 33,838 common shares under a Rule 10b5-1 trading plan.

Rhea-AI Filing Summary

Sandisk Corp (SNDK) reported that chairman and CEO David Goeckeler sold 33,838 shares of common stock on September 14, 2026 in a series of open‑market or private transactions. The sales were made under a Rule 10b5-1 trading plan adopted on May 29, 2026, with weighted average prices per tranche generally around $1,522–$1,542 per share.

Insider Trade Summary 10b5-1

Net Seller: 33,838 shares

Net Sell 13 txns

Insider Goeckeler David

Role Chairman & CEO

Sold 33,838 shs ($51.70M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1, F2	14,364	$1,522.5874	$21.87M
Sale	Common Stock F1	181	$1,522.87	$276K
Sale	Common Stock F1, F3	3,075	$1,524.2678	$4.69M
Sale	Common Stock F1, F4	2,280	$1,526.4463	$3.48M
Sale	Common Stock F1, F5	4,080	$1,528.4464	$6.24M
Sale	Common Stock F1	359	$1,529.36	$549K
Sale	Common Stock F1	1,200	$1,532.17	$1.84M
Sale	Common Stock F1, F6	700	$1,535.1168	$1.07M
Sale	Common Stock F1, F7	1,695	$1,535.9626	$2.60M
Sale	Common Stock F1, F8	3,200	$1,537.6776	$4.92M
Sale	Common Stock F1	1,480	$1,539.19	$2.28M
Sale	Common Stock F1, F9	864	$1,540.7796	$1.33M
Sale	Common Stock F1, F10	360	$1,541.8811	$555K

Holdings After Transaction: Common Stock — 413,410 shares (Direct)

Footnotes (10)

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 May 29, 2026.
2. F2. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1521.85 to a high of $1522.75. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
3. F3. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1524.00 to a high of $1524.66. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
4. F4. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1526.42 to a high of $1526.48. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
5. F5. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1528.00 to a high of $1528.56. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
6. F6. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1534.60 to a high of $1535.58. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
7. F7. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1535.92 to a high of $1536.36. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
8. F8. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1537.60 to a high of $1537.83. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
9. F9. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1540.30 to a high of $1541.00. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.
10. F10. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1541.88 to a high of $1541.89. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

Key Figures

Common shares sold: 33,838 shares Number of sale transactions: 13 transactions Weighted average price (example tranche): $1,522.59 per share +2 more

5 metrics

Common shares sold 33,838 shares Total Sandisk common stock sold by the chairman & CEO on September 14, 2026

Number of sale transactions 13 transactions Separate open-market or private sale tranches reported on September 14, 2026

Weighted average price (example tranche) $1,522.59 per share Weighted average sale price for a 14,364-share tranche on September 14, 2026

Weighted average price (higher tranche) $1,540.78 per share Weighted average sale price for an 864-share tranche on September 14, 2026

Rule 10b5-1 plan adoption date May 29, 2026 Date the CEO’s trading plan governing these sales was adopted

Key Terms

Rule 10b5-1 trading plan, weighted average sale price per share, open market or private transaction

3 terms

Rule 10b5-1 trading plan regulatory

"The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan"

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.

weighted average sale price per share financial

"Represents the weighted average sale price per share. These shares were sold"

open market or private transaction financial

"Sale in open market or private transaction"

FAQ

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

What insider transaction did Sandisk Corp (SNDK) disclose in this Form 4?

Sandisk Corp disclosed that chairman and CEO David Goeckeler sold 33,838 shares of common stock on September 14, 2026 in a series of open‑market or private sale transactions.

At what prices were the SNDK shares sold by the CEO on September 14, 2026?

The reported sales used weighted average sale prices per tranche, including $1,522.59, $1,524.27, $1,526.45, $1,528.45, $1,535.12, $1,537.68, and $1,540.78 per share, with each tranche executed in multiple transactions within narrow price ranges.

Were the Sandisk (SNDK) insider sales made under a Rule 10b5-1 trading plan?

Yes. A footnote states the sales were effected pursuant to a Rule 10b5-1 trading plan adopted by David Goeckeler on May 29, 2026, indicating the trades were pre-arranged under that plan.

How many separate sale transactions did the Sandisk (SNDK) CEO report?

The filing reports 13 separate sale transactions in Sandisk common stock on September 14, 2026, all coded as open‑market or private sale transactions of non‑derivative common shares.

What type of security did the Sandisk (SNDK) CEO sell in this Form 4?

All reported transactions involve Common Stock of Sandisk Corp, classified as non-derivative securities and held in direct ownership before being sold.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 09/16/2026 - 07:42 PM Accepted by SEC EDGAR 09/16/2026 - 07:41 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).

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^*

Goeckeler David

(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
X	Officer (give title below)		Other (specify below)
	Chairman & CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/14/2026

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	09/14/2026		S(1)		14,364	D	$1,522.5874(2)	432,884	D
Common Stock	09/14/2026		S(1)		181	D	$1,522.87	432,703	D
Common Stock	09/14/2026		S(1)		3,075	D	$1,524.2678(3)	429,628	D
Common Stock	09/14/2026		S(1)		2,280	D	$1,526.4463(4)	427,348	D
Common Stock	09/14/2026		S(1)		4,080	D	$1,528.4464(5)	423,268	D
Common Stock	09/14/2026		S(1)		359	D	$1,529.36	422,909	D
Common Stock	09/14/2026		S(1)		1,200	D	$1,532.17	421,709	D
Common Stock	09/14/2026		S(1)		700	D	$1,535.1168(6)	421,009	D
Common Stock	09/14/2026		S(1)		1,695	D	$1,535.9626(7)	419,314	D
Common Stock	09/14/2026		S(1)		3,200	D	$1,537.6776(8)	416,114	D
Common Stock	09/14/2026		S(1)		1,480	D	$1,539.19	414,634	D
Common Stock	09/14/2026		S(1)		864	D	$1,540.7796(9)	413,770	D
Common Stock	09/14/2026		S(1)		360	D	$1,541.8811(10)	413,410	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 May 29, 2026.

2. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1521.85 to a high of $1522.75. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

3. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1524.00 to a high of $1524.66. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

4. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1526.42 to a high of $1526.48. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

5. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1528.00 to a high of $1528.56. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

6. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1534.60 to a high of $1535.58. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

7. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1535.92 to a high of $1536.36. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

8. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1537.60 to a high of $1537.83. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

9. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1540.30 to a high of $1541.00. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

10. Represents the weighted average sale price per share. These shares were sold in multiple transactions at prices ranging from a low of $1541.88 to a high of $1541.89. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price.

	By: /s/ Sharon Spehar Attorney-in-Fact For: David Goeckeler	09/16/2026
	** 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)