SEC Form 4 · accession 0001137789-26-000241
Seagate Technology Holdings plc · STX
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Gianluca Romano
Officer — EVP & CFO
Period of report
Sep 11, 2026
Accepted (ET)
Sep 15, 2026 · 4:15 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001137789
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Ordinary SharesF1,F2 | Sep 11, 2026 | S | 200 | $844.8066 | D | 34,020 | D | |
| Ordinary SharesF1,F3 | Sep 11, 2026 | S | 200 | $846.9391 | D | 33,820 | D | |
| Ordinary SharesF1,F4 | Sep 11, 2026 | S | 320 | $847.975 | D | 33,500 | D | |
| Ordinary SharesF1,F5 | Sep 11, 2026 | S | 560 | $849.5343 | D | 32,940 | D | |
| Ordinary SharesF1 | Sep 11, 2026 | S | 80 | $849.87 | D | 32,860 | D | |
| Ordinary SharesF1,F6 | Sep 11, 2026 | S | 320 | $851.445 | D | 32,540 | D | |
| Ordinary SharesF1,F7 | Sep 11, 2026 | S | 640 | $852.8725 | D | 31,900 | D | |
| Ordinary SharesF1,F8 | Sep 11, 2026 | S | 680 | $854.4147 | D | 31,220 | D | |
| Ordinary SharesF1,F9 | Sep 11, 2026 | S | 240 | $855.72 | D | 30,980 | D | |
| Ordinary SharesF1,F10 | Sep 11, 2026 | S | 240 | $857.4067 | D | 30,740 | D | |
| Ordinary SharesF1,F11 | Sep 11, 2026 | S | 280 | $860.4714 | D | 30,460 | D | |
| Ordinary SharesF1 | Sep 11, 2026 | S | 280 | $861.07 | D | 30,180 | D | |
| Ordinary SharesF1,F12 | Sep 11, 2026 | S | 320 | $864.4125 | D | 29,860 | D | |
| Ordinary SharesF1,F13 | Sep 11, 2026 | S | 240 | $868.43 | D | 29,620 | D | |
| Ordinary Shares | Sep 11, 2026 | M | 1,695 | $0.00 | A | 31,315 | D | |
| Ordinary SharesF14 | Sep 14, 2026 | S | 955 | $781.2429 | D | 30,360 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Share UnitF15 | $0.00 | Sep 11, 2026 | M | 1,695 | D | — | — | Ordinary Shares | 1,695 | 6,780 | D |
Explanation of responses
- F1This sale of Ordinary Shares was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on April 30, 2026
- F10These 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.
- F11These 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.
- F12These 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.
- F13These 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.
- F14Represents sales made pursuant to Issuer mandated sell-to-cover solely to satisfy tax withholding obligations.
- F15Consists 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.
- F2These 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.
- F3These 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.
- F4These 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.
- F5These 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.
- F6These 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.
- F7These 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.
- F8These 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.
- F9These 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.