STX (STX): James C. Lee files notice to sell 543 common shares

Rhea-AI Filing Summary

STX shareholder James C. Lee filed a notice of proposed sale of restricted or control securities. The planned transaction covers 543 shares of common stock, to be sold through Morgan Stanley on or after July 23, 2026 on the NASDAQ Global Select Market.

The filing references 1,237 shares of common stock associated with restricted stock unit vesting on July 22, 2026 as compensation for services. It also discloses a prior sale of 697 shares of common stock on May 4, 2026, with an aggregate value of $516,595.49, over the past three months.

Key Figures

Shares to be sold: 543 shares Aggregate market value of planned sale: $490,740.98 RSU-related shares: 1,237 shares +2 more

5 metrics

Shares to be sold 543 shares Planned sale of common stock on or after July 23, 2026

Aggregate market value of planned sale $490,740.98 Value for 543 shares of common stock in planned transaction

RSU-related shares 1,237 shares Common stock tied to restricted stock unit vesting on July 22, 2026

Recent shares sold 697 shares Common stock sold on May 4, 2026 in past three months

Value of recent sale $516,595.49 Aggregate value of 697 shares sold on May 4, 2026

Key Terms

restricted or control securities, Restricted Stock Unit Vesting, compensation for services, Form 144

4 terms

restricted or control securities regulatory

"filed a notice of proposed sale of restricted or control securities"

Restricted Stock Unit Vesting financial

"associated with restricted stock unit vesting on July 22, 2026"

compensation for services financial

"linked to restricted stock unit vesting as compensation for services"

Form 144 regulatory

"according to the Form 144 notice"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

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Available on EDGAR 07/23/2026 - 05:51 PM Accepted by SEC EDGAR 07/23/2026 - 05:50 PM Learn about SEC filing dates

FAQ

What stock sale is James C. Lee planning for STX under this Form 144?

James C. Lee plans to sell 543 shares of STX common stock through Morgan Stanley on or after July 23, 2026 on the NASDAQ Global Select Market, according to the Form 144 notice.

What is the aggregate market value of the STX shares James C. Lee plans to sell?

The planned sale of 543 STX common shares has an aggregate market value of $490,740.98. This value is based on the market price used in the Form 144 filing for the proposed transaction.

How are restricted stock units related to James C. Lee’s planned STX sale?

The filing links 1,237 shares of STX common stock to restricted stock unit vesting on July 22, 2026 as compensation for services, providing context for the proposed sale of 543 shares.

What STX stock transactions has James C. Lee made in the last three months?

Over the past three months, James C. Lee sold 697 shares of STX common stock on May 4, 2026, with an aggregate value of $516,595.49, as disclosed in the Form 144 filing.

Which broker and exchange are involved in James C. Lee’s planned STX sale?

The planned sale of 543 STX common shares will be executed through Morgan Stanley, with the securities traded on the NASDAQ Global Select Market (NASDAQGS), as specified in the filing.

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 Stock	Morgan Stanley 1 New York Plaza 8th Floor New York NY 10004	543	490740.98	224228992	07/23/2026	NASDAQGS

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 stock	07/22/2026	Restricted Stock Unit Vesting	Issuer			1237	07/22/2026	Compensation for services

* 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
James C. Lee 47488 Kato Rd Fremont CA 94538	Common Stock	05/04/2026	697	516595.49

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)