Seagate officer plans $1.22M tax-withholding sale

An officer of Seagate Technology Holdings plc filed a Rule 144 notice to sell a small number of shares tied to RSU vesting to cover tax obligations.

Rhea-AI Filing Summary

Seagate Technology Holdings plc (STX) received a notice from officer Gianluca Romano of a proposed sale of 1,415 shares of common stock through Morgan Stanley under Rule 144. The planned sale relates to restricted stock unit vesting and is described as issuer-mandated sell-to-cover solely to satisfy tax withholding obligations.

Key Figures

Shares proposed for sale: 1,415 shares Aggregate market value of proposed sale: $1,220,263.94 Shares outstanding: 226,644,518 shares +5 more

8 metrics

Shares proposed for sale 1,415 shares Common stock to be sold under Rule 144 via Morgan Stanley

Aggregate market value of proposed sale $1,220,263.94 Value of 1,415 shares as referenced in the notice

Shares outstanding 226,644,518 shares Seagate common stock outstanding as referenced in the notice

RSU vesting 1 959 shares Common stock from restricted stock unit vesting on September 9, 2026

RSU vesting 2 1,515 shares Common stock from restricted stock unit vesting on September 9, 2026

Sale on June 10, 2026 1,351 shares for $1,109,780.00 Common stock sold by Gianluca Romano during past 3 months

Sale on August 7, 2026 22,211 shares for $2,190,984.63 Common stock sold by Gianluca Romano during past 3 months

Sale on August 20, 2026 9,077 shares for $7,708,956.50 Common stock sold by Gianluca Romano during past 3 months

Key Terms

Rule 144, Restricted Stock Unit Vesting, sell-to-cover, Attorney-in-Fact

4 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 | 09/09/2026 | 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.

Attorney-in-Fact regulatory

"Signature | /s/ Dawn Ledbetter. Attorney-in-Fact for Gianluca Romano"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

What does the Form 144 filing mean for Seagate (STX)?

The notice reports that officer Gianluca Romano plans to sell 1,415 shares of Seagate common stock under Rule 144. The sales are linked to restricted stock unit vesting and are described as issuer-mandated sell-to-cover for tax withholding.

How many Seagate (STX) shares are proposed to be sold in this notice?

The notice covers a proposed sale of 1,415 shares of Seagate common stock, with an indicated aggregate market value of $1,220,263.94 as of September 10, 2026.

What RSU-related transactions are disclosed for Seagate (STX) in this notice?

Two RSU vesting events on September 9, 2026 are listed: one for 959 shares of common stock and another for 1,515 shares, both described as compensation for services and associated with issuer-mandated sell-to-cover for tax withholding.

What Seagate (STX) share sales has Gianluca Romano reported in the past 3 months?

The notice lists common stock sales of 1,351 shares on June 10, 2026 for $1,109,780.00, 904 shares on June 12, 2026 for $795,689.32, 22,211 shares on August 7, 2026 for $2,190,984.63, and 9,077 shares on August 20, 2026 for $7,708,956.50.

How many Seagate (STX) shares were outstanding as referenced in this notice?

The notice cites 226,644,518 shares of Seagate common stock as outstanding. This figure provides context for the relative size of the proposed and recent sales.

What is the purpose of the planned Seagate (STX) share sales in this notice?

The remarks state that sales are to be made pursuant to issuer mandated sell-to-cover, used solely to satisfy tax withholding obligations in connection with restricted stock unit vesting.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 09/10/2026 - 07:28 PM Accepted by SEC EDGAR 09/10/2026 - 07:28 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	1415	1220263.94	226644518	09/10/2026	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	09/09/2026	Restricted Stock Unit Vesting	Issuer			959	09/09/2026	Compensation for services
Common Stock	09/09/2026	Restricted Stock Unit Vesting	Issuer			1515	09/09/2026	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	06/10/2026	1351	1109780.00
Gianluca Romano 47488 Kato Rd Fremont CA 94538	Common Stock	06/12/2026	904	795689.32
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	08/20/2026	9077	7708956.50

144: Remarks and Signature

Remarks	Sales to be made pursuant to Issuer mandated sell-to-cover solely to satisfy tax withholding obligations.
Date of Notice	09/10/2026
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)