Seagate officer to sell 9,135 shares for tax cover

Seagate Technology Holdings plc (STX) reported a planned Rule 144 sale of common stock by officer Gianluca Romano.

Rhea-AI Filing Summary

Seagate Technology Holdings plc (STX) reported a planned Rule 144 sale of common stock by officer Gianluca Romano. The notice covers up to 9,135 shares of common stock, with an aggregate market value of $7,758,856.10, relative to 226,644,518 shares outstanding as of August 21, 2026. The shares relate to multiple Restricted Stock Unit vesting events and will be sold pursuant to issuer-mandated sell-to-cover transactions solely to satisfy tax withholding obligations.

Key Figures

Shares covered by notice: 9,135 shares of common stock Aggregate market value: $7,758,856.10 Shares outstanding: 226,644,518 shares +5 more

8 metrics

Shares covered by notice 9,135 shares of common stock Securities information for planned Rule 144 sale

Aggregate market value $7,758,856.10 Value of 9,135 shares covered by the notice

Shares outstanding 226,644,518 shares Common stock outstanding as of August 21, 2026

RSU vesting block 1 2,739 shares Common stock issuable from Restricted Stock Unit vesting on August 20, 2026

RSU vesting block 2 9,129 shares Common stock issuable from Restricted Stock Unit vesting on August 20, 2026

RSU vesting block 3 5,039 shares Common stock issuable from Restricted Stock Unit vesting on August 20, 2026

Sale on August 7, 2026 22,211 shares for $2,190,984.63 Common stock sold during past three months

Sale on June 9, 2026 1,351 shares for $1,109,780.00 Common stock sold during past three months

Key Terms

Rule 144, Restricted Stock Unit Vesting, sell-to-cover

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 Unit Vesting financial

"Common stock | 08/20/2026 | Restricted Stock Unit Vesting | Issuer"

sell-to-cover financial

"Sales to be made pursuant to Issuer mandated sell-to-cover solely"

Sell-to-cover is when part of newly issued or exercised company stock is immediately sold to pay required taxes and fees, so the recipient keeps the remaining shares. For investors this matters because it reduces the number of shares insiders or employees actually hold after a grant, can create small, routine share sales that aren’t signal of cashing out, and slightly increases share supply on the market—like selling a portion of a paycheck to cover the tax bill.

FAQ

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

What is the purpose of the Form 144 filing involving STX?

The Form 144 relates to planned sales of Seagate Technology Holdings plc (STX) common stock by officer Gianluca Romano under Rule 144. The sales are described as issuer-mandated sell-to-cover transactions made solely to satisfy tax withholding obligations on vested restricted stock units.

How many STX shares are covered by this Form 144 notice?

The notice covers up to 9,135 shares of Seagate Technology Holdings plc common stock, with an aggregate market value of $7,758,856.10. These shares are associated with equity compensation, specifically restricted stock unit vesting events.

What is the aggregate market value of the STX shares in this Form 144?

The aggregate market value of the Seagate Technology Holdings plc (STX) common stock covered by the notice is $7,758,856.10. This value is reported together with the 9,135 shares referenced in the securities information section.

How many Seagate (STX) shares were outstanding as of August 21, 2026?

The Form 144 states that Seagate Technology Holdings plc had 226,644,518 shares outstanding of common stock as of August 21, 2026. This figure provides context for the size of the planned Rule 144 sale.

What STX stock has Gianluca Romano sold in the past three months?

Over the past three months, Gianluca Romano reported sales of Seagate common stock including 22,211 shares on August 7, 2026 for $2,190,984.63, 904 shares on June 12, 2026 for $795,029.18, and 1,351 shares on June 9, 2026 for $1,109,780.00.

What is the nature of the STX securities to be sold under this notice?

The securities are Seagate Technology Holdings plc common stock issued upon Restricted Stock Unit vesting on August 20, 2026. The filing notes that sales will be executed as sell-to-cover transactions mandated by the issuer to satisfy tax withholding obligations tied to this compensation.

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

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Available on EDGAR 08/21/2026 - 07:17 PM Accepted by SEC EDGAR 08/21/2026 - 07:17 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	0001764650
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	Seagate Technology Holdings plc
SEC File Number	001-31560
Address of Issuer	121 WOODLANDS AVENUE 5 SINGAPORE SINGAPORE 739009
Phone	65 6412 5172
Name of Person for Whose Account the Securities are To Be Sold	Romano Gianluca
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 Stock	Morgan Stanley 1 New York Plaza 8th Floor New York NY 10004	9135	7758856.10	226644518	08/21/2026	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	08/20/2026	Restricted Stock Unit Vesting	Issuer			2739	08/20/2026	Compensation for services
Common Stock	08/20/2026	Restricted Stock Unit Vesting	Issuer			9129	08/20/2026	Compensation for services
Common Stock	08/20/2026	Restricted Stock Unit Vesting	Issuer			5039	08/20/2026	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
Gianluca Romano 47488 Kato Rd Fremont CA 94538	Common Stock	08/07/2026	22211	2190984.63
Gianluca Romano 47488 Kato Rd Fremont CA 94538	Common Stock	06/12/2026	904	795029.18
Gianluca Romano 47488 Kato Rd Fremont CA 94538	Common Stock	06/09/2026	1351	1109780.00

144: Remarks and Signature

Remarks	Sales to be made pursuant to Issuer mandated sell-to-cover solely to satisfy tax withholding obligations. PoA attached.
Date of Notice	08/21/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	08/20/2026
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/ Dawn Ledbetter. Attorney-in-Fact for Gianluca Romano
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)