Sandisk officer plans sale of 3,000 shares

Sandisk Corp (SNDK) received a Rule 144 notice that officer Luis Visoso intends to sell 3,000 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services on or after September 15, 2026 on NASDAQ.

Rhea-AI Filing Summary

Sandisk Corp (SNDK) received a Rule 144 notice that officer Luis Visoso intends to sell 3,000 shares of common stock through Morgan Stanley Smith Barney LLC Executive Financial Services on or after September 15, 2026 on NASDAQ. The shares were acquired via vested restricted stock units from August 20, 2025 through May 21, 2026.

Key Figures

Shares to be sold: 3,000 shares Proposed sale date: September 15, 2026 Acquisition period for RSU vesting: August 20, 2025 to May 21, 2026

3 metrics

Shares to be sold 3,000 shares Common stock covered by the Rule 144 notice

Proposed sale date September 15, 2026 Date listed for the Rule 144 sale on NASDAQ

Acquisition period for RSU vesting August 20, 2025 to May 21, 2026 Period during which RSUs vested into the shares to be sold

Key Terms

Rule 144, restricted stock units, common stock

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

restricted stock units financial

"The securities to be sold were acquired upon the vesting of restricted stock units"

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.

common stock financial

"Common | Morgan Stanley Smith Barney LLC Executive Financial Services"

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 does the Form 144 filing disclose for SNDK?

It discloses that officer Luis Visoso intends to sell 3,000 shares of Sandisk Corp common stock under Rule 144, with Morgan Stanley Smith Barney LLC Executive Financial Services listed as broker and trading expected on NASDAQ.

How many Sandisk Corp (SNDK) shares are covered by this Form 144?

The notice covers 3,000 shares of Sandisk Corp common stock to be sold. This represents stock underlying previously granted equity awards rather than a new issuance by the company.

When were the SNDK shares to be sold by Luis Visoso acquired?

The shares were acquired upon the vesting of restricted stock units during the period from August 20, 2025 through May 21, 2026, as stated in the remarks section.

What is the proposed sale timing in the SNDK Form 144?

The Form 144 lists a proposed sale date of September 15, 2026 for the 3,000 common shares, with the sale expected to occur on NASDAQ.

Who is the broker for the planned SNDK stock sale under Rule 144?

The planned sale of 3,000 Sandisk Corp common shares is to be handled by Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, 8th Floor, New York, NY 10004.

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

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Available on EDGAR 09/15/2026 - 04:46 PM Accepted by SEC EDGAR 09/15/2026 - 04:45 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001816289
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	SANDISK CORPORATION
SEC File Number	001-42420
Address of Issuer	951 Sandisk Drive Milpitas CALIFORNIA 95035
Phone	4088011000
Name of Person for Whose Account the Securities are To Be Sold	LUIS VISOSO
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	3000	4655970.00	146419001	09/15/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/20/2025	Restricted Stock Units	Issuer			3000	08/20/2025	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks	The securities to be sold were acquired upon the vesting of restricted stock units during the period of 8/20/2025 through 5/21/2026.
Date of Notice	09/15/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/22/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Luis Visoso
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)