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Seagate CFO sells 5,555 shares in September trades

Seagate’s EVP & CFO reported planned stock sales totaling 5,555 shares, plus RSU vesting and a tax-related sell-to-cover.

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Seagate Technology Holdings plc (STX) reported insider transactions by EVP & CFO Gianluca Romano, who sold a total of 5,555 Ordinary Shares in multiple open-market trades on September 11 and 14, 2026, at prices generally in the mid-$800s per share. The September 11 sales were effected pursuant to a Rule 10b5-1 trading plan adopted on April 30, 2026, and a separate sale of 955 shares at $781.24 on September 14, 2026 was an issuer-mandated sell-to-cover solely to satisfy tax withholding obligations. Romano also exercised 1,695 Restricted Share Units into Ordinary Shares and, following that vesting, is reported as holding 6,780 Restricted Share Units directly.

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Insider Romano Gianluca
Role EVP & CFO
Sold 5,555 shs ($4.68M)
Approx. gross sale proceeds $4.68M
Approx. exercise cost $0.00
Type Security Shares Price Value
Sale Ordinary Shares F14 955 $781.2429 $746K
Exercise Restricted Share Unit F15 1,695 $0.00 $0.00
Sale Ordinary Shares F1, F2 200 $844.8066 $169K
Sale Ordinary Shares F1, F3 200 $846.9391 $169K
Sale Ordinary Shares F1, F4 320 $847.975 $271K
Sale Ordinary Shares F1, F5 560 $849.5343 $476K
Sale Ordinary Shares F1 80 $849.87 $68K
Sale Ordinary Shares F1, F6 320 $851.445 $272K
Sale Ordinary Shares F1, F7 640 $852.8725 $546K
Sale Ordinary Shares F1, F8 680 $854.4147 $581K
Sale Ordinary Shares F1, F9 240 $855.72 $205K
Sale Ordinary Shares F1, F10 240 $857.4067 $206K
Sale Ordinary Shares F1, F11 280 $860.4714 $241K
Sale Ordinary Shares F1 280 $861.07 $241K
Sale Ordinary Shares F1, F12 320 $864.4125 $277K
Sale Ordinary Shares F1, F13 240 $868.43 $208K
Exercise Ordinary Shares 1,695 $0.00 $0.00
Holdings After Transaction: Restricted Share Unit — 6,780 contracts (Direct); Ordinary Shares — 30,360 shares (Direct)
Footnotes (15)
  1. F1. This sale of Ordinary Shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on April 30, 2026
  2. F2. These Ordinary Shares were sold in multiple trades at prices ranging from $844.72 to $845.15. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
  3. F3. These Ordinary Shares were sold in multiple trades at prices ranging from $846.84 to $847.62. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
  4. F4. These Ordinary Shares were sold in multiple trades at prices ranging from $847.87 to $848.01. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
  5. F5. These Ordinary Shares were sold in multiple trades at prices ranging from $848.87 to $849.84. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
  6. F6. These Ordinary Shares were sold in multiple trades at prices ranging from $851.22 to $851.52. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
  7. F7. These Ordinary Shares were sold in multiple trades at prices ranging from $852.41 to $853.19. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
  8. F8. These Ordinary Shares were sold in multiple trades at prices ranging from $853.77 to $854.64. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
  9. F9. These Ordinary Shares were sold in multiple trades at prices ranging from $855.21 to $856.07. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
  10. F10. These Ordinary Shares were sold in multiple trades at prices ranging from $857.23 to $857.76. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
  11. F11. These Ordinary Shares were sold in multiple trades at prices ranging from $860.06 to $861.02. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
  12. F12. These Ordinary Shares were sold in multiple trades at prices ranging from $864.2 to $865.05. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
  13. F13. These Ordinary Shares were sold in multiple trades at prices ranging from $867.77 to $868.76. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
  14. F14. Represents sales made pursuant to Issuer mandated sell-to-cover solely to satisfy tax withholding obligations.
  15. F15. Consists of a grant of restricted share unit awarded to the reporting person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan. One-quarter of the shares vested on September 11, 2024 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years.
Ordinary Shares sold 5,555 shares Total Seagate Ordinary Shares sold by the CFO across reported transactions
Sale price example (September 14, 2026) $781.24 per share 955-share sale designated as sell-to-cover for tax withholding
Sale price range (September 11, 2026 trades) $844.72–$868.76 per share Weighted-average sale prices were based on trades within these ranges
Restricted Share Units exercised 1,695 RSUs RSUs converted into Ordinary Shares on September 11, 2026
Restricted Share Units remaining 6,780 RSUs Direct RSU holdings reported following the September 11, 2026 vesting
10b5-1 plan adoption date April 30, 2026 Date the CFO adopted the Rule 10b5-1 trading plan for the September 11 sales
Rule 10b5-1 trading plan regulatory
"sale of Ordinary Shares was effected pursuant to a Rule 10b5-1 trading plan"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
sell-to-cover financial
"Represents sales 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.
Restricted Share Unit financial
"Consists of a grant of restricted share unit awarded to the reporting person"
A restricted share unit (RSU) is a promise by a company to give an employee a set number of company shares at a future date, typically after meeting time or performance conditions. For investors, RSUs matter because when they convert into actual shares they increase the number of shares outstanding (like unlocking more tickets in a game), which can dilute existing holders, and they align employee incentives with company performance, influencing behavior and long-term value.
weighted average sale price financial
"The price reported above reflects the weighted average sale price"

FAQ

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

What insider transactions did Seagate (STX) EVP & CFO Gianluca Romano report?
He reported selling 5,555 Ordinary Shares of Seagate in multiple open-market transactions on September 11 and 14, 2026, and exercising 1,695 Restricted Share Units into Ordinary Shares, with these activities disclosed as part of his Form 4 filing.

How many Seagate (STX) shares did the CFO sell and at what prices?
The CFO sold 5,555 Ordinary Shares. On September 11, 2026, blocks were sold at weighted-average prices generally between $844.81 and $868.43 per share, and on September 14, 2026, 955 shares were sold at $781.24 per share.

Were the Seagate (STX) insider sales made under a Rule 10b5-1 trading plan?
Yes. The filing states that the September 11, 2026 sales of Ordinary Shares were effected pursuant to a Rule 10b5-1 trading plan adopted by Gianluca Romano on April 30, 2026, indicating those trades were pre-arranged under that plan.

Did the Seagate (STX) CFO sell shares to cover taxes?
Yes. A sale of 955 Ordinary Shares at $781.24 per share on September 14, 2026 is described as an issuer-mandated sell-to-cover solely to satisfy tax withholding obligations, meaning those shares were sold specifically to meet tax requirements.

What happened to Gianluca Romano’s Seagate (STX) Restricted Share Units?
On September 11, 2026, 1,695 Restricted Share Units were converted into Ordinary Shares. After this transaction, the filing reports that he directly holds 6,780 Restricted Share Units under Seagate’s 2022 Equity Incentive Plan, subject to the plan’s vesting schedule.

What vesting schedule applies to the Seagate (STX) RSU grant mentioned in the Form 4?
The RSU grant consists of awards under the Seagate Technology Holdings plc 2022 Equity Incentive Plan. One-quarter of the shares vested on September 11, 2024, and the remaining portion vests in equal quarterly installments over the following three years, for a total four-year vesting period.

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

Form 4 Insider Transactions: What Each Field Means →
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SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Romano Gianluca
(Last)(First)(Middle)
SEAGATE TECHNOLOGY HOLDINGS PLC
47488 KATO ROAD
(Street)
FREMONT CALIFORNIA 94538
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
Seagate Technology Holdings plc [ STX ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
EVP & CFO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/11/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Ordinary Shares09/11/2026S200(1)D$844.8066(2)34,020D
Ordinary Shares09/11/2026S200(1)D$846.9391(3)33,820D
Ordinary Shares09/11/2026S320(1)D$847.975(4)33,500D
Ordinary Shares09/11/2026S560(1)D$849.5343(5)32,940D
Ordinary Shares09/11/2026S80(1)D$849.8732,860D
Ordinary Shares09/11/2026S320(1)D$851.445(6)32,540D
Ordinary Shares09/11/2026S640(1)D$852.8725(7)31,900D
Ordinary Shares09/11/2026S680(1)D$854.4147(8)31,220D
Ordinary Shares09/11/2026S240(1)D$855.72(9)30,980D
Ordinary Shares09/11/2026S240(1)D$857.4067(10)30,740D
Ordinary Shares09/11/2026S280(1)D$860.4714(11)30,460D
Ordinary Shares09/11/2026S280(1)D$861.0730,180D
Ordinary Shares09/11/2026S320(1)D$864.4125(12)29,860D
Ordinary Shares09/11/2026S240(1)D$868.43(13)29,620D
Ordinary Shares09/11/2026M1,695A$031,315D
Ordinary Shares09/14/2026S955(14)D$781.242930,360D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Share Unit$009/11/2026M1,695 (15) (15)Ordinary Shares1,695$06,780D
Explanation of Responses:
1. This sale of Ordinary Shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on April 30, 2026
2. These Ordinary Shares were sold in multiple trades at prices ranging from $844.72 to $845.15. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
3. These Ordinary Shares were sold in multiple trades at prices ranging from $846.84 to $847.62. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
4. These Ordinary Shares were sold in multiple trades at prices ranging from $847.87 to $848.01. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
5. These Ordinary Shares were sold in multiple trades at prices ranging from $848.87 to $849.84. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
6. These Ordinary Shares were sold in multiple trades at prices ranging from $851.22 to $851.52. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
7. These Ordinary Shares were sold in multiple trades at prices ranging from $852.41 to $853.19. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
8. These Ordinary Shares were sold in multiple trades at prices ranging from $853.77 to $854.64. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
9. These Ordinary Shares were sold in multiple trades at prices ranging from $855.21 to $856.07. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
10. These Ordinary Shares were sold in multiple trades at prices ranging from $857.23 to $857.76. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
11. These Ordinary Shares were sold in multiple trades at prices ranging from $860.06 to $861.02. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
12. These Ordinary Shares were sold in multiple trades at prices ranging from $864.2 to $865.05. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
13. These Ordinary Shares were sold in multiple trades at prices ranging from $867.77 to $868.76. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares and prices at which the transaction was effected.
14. Represents sales made pursuant to Issuer mandated sell-to-cover solely to satisfy tax withholding obligations.
15. Consists of a grant of restricted share unit awarded to the reporting person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan. One-quarter of the shares vested on September 11, 2024 and the remaining portion shall vest in equal quarterly installments over the following three years for a total vesting period of four years.
Remarks:
/s/ Louis J. Thorson, Attorney-in-Fact for Gianluca Romano09/15/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

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