Insider (NASDAQ: SNDK) plans Rule 144 sale of 3,000 shares under SEC filing

Rhea-AI Filing Summary

Kimberly Alexy has filed a Form 144 indicating an intent to sell 3,000 shares of common stock of the issuer. The planned sale is to be executed through Morgan Stanley Smith Barney LLC, with an aggregate market value of 1011939.60, and is expected around 01/06/2026 on the NASDAQ exchange.

The notice also lists prior sales in the last three months. On 11/21/2025, 2,401 common shares were sold for gross proceeds of 485830.35, and on 11/20/2025, 3,000 common shares were sold for gross proceeds of 652663.50. The securities to be sold were originally acquired as restricted stock from the issuer in 2019 and 2020.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	1011939.60	146553179	01/06/2026	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	11/14/2020	Restricted Stock	Issuer			1346	11/14/2020	Not Applicable
Common	11/13/2019	Restricted Stock	Issuer			1654	11/13/2019	Not Applicable

* 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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
KIMBERLY ALEXY 951 Sandisk Drive Milpitas CA 95035	Common	11/21/2025	2401	485830.35
KIMBERLY ALEXY 951 Sandisk Drive Milpitas CA 95035	Common	11/20/2025	3000	652663.50

144: Remarks and Signature

Remarks

Date of Notice

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the SNDK Form 144 filing disclose?

The filing discloses that Kimberly Alexy intends to sell 3,000 shares of the issuer’s common stock under Rule 144. The planned sale has an aggregate market value of 1011939.60 and is expected to occur around 01/06/2026 on the NASDAQ exchange through Morgan Stanley Smith Barney LLC.

How many SNDK shares has Kimberly Alexy recently sold?

Over the past three months, the filing reports two sales of common stock by Kimberly Alexy: 2,401 shares on 11/21/2025 for gross proceeds of 485830.35, and 3,000 shares on 11/20/2025 for gross proceeds of 652663.50.

What is the size and value of the planned SNDK share sale?

The planned transaction covered by this Form 144 is for 3,000 shares of common stock with an aggregate market value of 1011939.60. The filing lists NASDAQ as the securities exchange for this sale.

How and when were the SNDK shares being sold originally acquired?

The shares to be sold were acquired as restricted stock from the issuer. One block of 1,346 shares was acquired on 11/14/2020, and another block of 1,654 shares was acquired on 11/13/2019, both noted as restricted stock grants from the issuer.

Which broker is handling the planned SNDK Rule 144 sale?

The planned sale of 3,000 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.

What representation does the seller make in the Form 144 notice?

By signing the notice, the person for whose account the securities are to be sold represents that they do not know any material adverse information about the issuer’s current or prospective operations that has not been publicly disclosed, and similar representations apply if a Rule 10b5-1 trading plan is used.