Shareholder plans SNDK (NASDAQ: SNDK) stock sale filing disclosure

Rhea-AI Filing Summary

A shareholder associated with SNDK has filed a notice to sell 1,000 shares of common stock through Morgan Stanley Smith Barney, with an indicated aggregate market value of $421,459.40 on NASDAQ. These shares were acquired on 11/15/2021 through restricted stock vesting under a registered plan in exchange for services rendered.

The filing also lists recent sales over the past three months by the Massengill Living Trust, including 2,340 common shares sold on 11/26/2025 for $508,394.95 and 2,816 common shares sold on 01/06/2026 for $953,009.02, among other transactions. By signing, the seller represents they are not aware of undisclosed material adverse information about the issuer’s current or prospective operations.

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	1000	421459.40	146553179	01/15/2026	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	11/15/2021	Restricted stock vesting under a registered plan	Issuer			1000	11/15/2021	Services Rendered

* 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
MASSENGILL LIVING TRUST 951 Sandisk Drive Milpitas CA 95035	Common	11/26/2025	2340	508394.95
MASSENGILL LIVING TRUST 951 Sandisk Drive Milpitas CA 95035	Common	11/25/2025	1500	335625.00
Massengill Trust 951 Sandisk Drive Milpitas CA 95035	Common	11/24/2025	1000	225089.00
MASSENGILL LIVING 951 Sandisk Drive Milpitas CA 95035	Common	01/07/2026	2000	693838.60
MASSENGILL LIVING TRUST 951 Sandisk Drive Milpitas CA 95035	Common	01/06/2026	2816	953009.02

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 this Form 144 filing for SNDK disclose?

The filing discloses that a shareholder intends to sell 1,000 shares of SNDK common stock on NASDAQ through Morgan Stanley Smith Barney, with an indicated aggregate market value of $421,459.40.

How were the SNDK shares being sold acquired?

The 1,000 common shares were acquired on 11/15/2021 as restricted stock vesting under a registered plan from the issuer in exchange for services rendered.

Who is the selling security holder in this SNDK Form 144?

Recent sales disclosed in the notice are attributed to the Massengill Living Trust, which appears as the seller of SNDK common shares in multiple transactions over the past three months.

What SNDK stock sales occurred in the past three months?

The notice lists several sales by the Massengill Living Trust, including 2,340 shares sold on 11/26/2025 for $508,394.95 and 2,816 shares sold on 01/06/2026 for $953,009.02, along with other common stock sales.

On which exchange are the SNDK shares in this filing traded?

The Form 144 states that the common stock covered by the notice is traded on the NASDAQ securities exchange.

What representation does the seller make about SNDK’s information?

By signing the notice, the seller represents that they do not know any material adverse information about the issuer’s current or prospective operations that has not been publicly disclosed.