Form 4 for STX Seagate Technology
Accepted 2026-08-24 17:11:28 ET · period of report 2026-08-20 · accession 0001137789-26-000187 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DMT | 2026-08-24 17:11 | 2026-08-20 | STX | Teh Ban Seng | EVP, Chief Commercial Off | M - OptEx | $52.67 | +18.2K | 21.1K | +621% | +$958.0K |
| DMT | 2026-08-24 17:11 | 2026-08-20 | STX | Teh Ban Seng | EVP, Chief Commercial Off | S - Sale+OE | $842.97 | -6,048 | 15.1K | -29% | -$5.10M |
| DMT | 2026-08-24 17:11 | 2026-08-20 | STX | Teh Ban Seng | EVP, Chief Commercial Off | M - OptEx | $0.00 | -18.2K | 18.1K | -50% | $0 |
| DMT | 2026-08-24 17:11 | 2026-08-20 | STX | Teh Ban Seng | EVP, Chief Commercial Off | A - Grant | $0.00 | +8,317 | 4,736 | New | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Ordinary Shares | 2026-08-20 | M | A | 2,267 | $0.00 | 5,198 | D | — | — | |
| 2 | Common | Ordinary Shares | 2026-08-20 | M | A | 7,595 | $0.00 | 12,793 | D | — | — | |
| 3 | Common | Ordinary Shares | 2026-08-20 | M | A | 2,279 | $0.00 | 15,072 | D | — | — | |
| 4 | Common | Ordinary Shares | 2026-08-20 | M | A | 6,048 | $158.40 | 21,120 | D | — | — | (F1) The option exercise and sale of all Ordinary Shares reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 11, 2026. |
| 5 | Common | Ordinary Shares | 2026-08-20 | S | D | 240 | $829.77 | 20,880 | D | — | — | (F2) These Ordinary Shares were sold in multiple trades at prices ranging from $829.17 to $830.15. 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. |
| 6 | Common | Ordinary Shares | 2026-08-20 | S | D | 80 | $830.18 | 20,800 | D | — | — | |
| 7 | Common | Ordinary Shares | 2026-08-20 | S | D | 240 | $831.85 | 20,560 | D | — | — | (F3) These Ordinary Shares were sold in multiple trades at prices ranging from $831.74 to $831.97. 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 | Common | Ordinary Shares | 2026-08-20 | S | D | 280 | $833.71 | 20,280 | D | — | — | (F4) These Ordinary Shares were sold in multiple trades at prices ranging from $833.11 to $833.98. 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 | Common | Ordinary Shares | 2026-08-20 | S | D | 240 | $834.59 | 20,040 | D | — | — | (F5) These Ordinary Shares were sold in multiple trades at prices ranging from $834.38 to $835.23. 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 | Common | Ordinary Shares | 2026-08-20 | S | D | 682 | $835.64 | 19,358 | D | — | — | (F6) These Ordinary Shares were sold in multiple trades at prices ranging from $835.50 to $836.08. 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 | Common | Ordinary Shares | 2026-08-20 | S | D | 440 | $837.22 | 18,918 | D | — | — | (F7) These Ordinary Shares were sold in multiple trades at prices ranging from $836.74 to $837.67. 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 | Common | Ordinary Shares | 2026-08-20 | S | D | 120 | $838.41 | 18,798 | D | — | — | (F8) These Ordinary Shares were sold in multiple trades at prices ranging from $838.00 to $838.78. 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 | Common | Ordinary Shares | 2026-08-20 | S | D | 80 | $839.94 | 18,718 | D | — | — | (F9) These Ordinary Shares were sold in multiple trades at prices ranging from $839.60 to $840.28 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 | Common | Ordinary Shares | 2026-08-20 | S | D | 160 | $841.51 | 18,558 | D | — | — | (F10) These Ordinary Shares were sold in multiple trades at prices ranging from $841.10 to $841.91. 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. |
| 15 | Common | Ordinary Shares | 2026-08-20 | S | D | 120 | $843.24 | 18,438 | D | — | — | (F11) These Ordinary Shares were sold in multiple trades at prices ranging from $842.85 to $843.76. 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. |
| 16 | Common | Ordinary Shares | 2026-08-20 | S | D | 40 | $843.86 | 18,398 | D | — | — | |
| 17 | Common | Ordinary Shares | 2026-08-20 | S | D | 926 | $845.03 | 17,472 | D | — | — | (F12) These Ordinary Shares were sold in multiple trades at prices ranging from $845.00 to $845.58. 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. |
| 18 | Common | Ordinary Shares | 2026-08-20 | S | D | 320 | $846.31 | 17,152 | D | — | — | (F13) These Ordinary Shares were sold in multiple trades at prices ranging from $846.00 to $846.66. 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. |
| 19 | Common | Ordinary Shares | 2026-08-20 | S | D | 160 | $847.41 | 16,992 | D | — | — | (F14) These Ordinary Shares were sold in multiple trades at prices ranging from $847.23 to $847.69. 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. |
| 20 | Common | Ordinary Shares | 2026-08-20 | S | D | 400 | $849.27 | 16,592 | D | — | — | (F15) These Ordinary Shares were sold in multiple trades at prices ranging from $848.81 to $849.67. 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. |
| 21 | Common | Ordinary Shares | 2026-08-20 | S | D | 280 | $850.41 | 16,312 | D | — | — | (F16) These Ordinary Shares were sold in multiple trades at prices ranging from $850.11 to $850.73. 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. |
| 22 | Common | Ordinary Shares | 2026-08-20 | S | D | 630 | $852.05 | 15,682 | D | — | — | (F17) These Ordinary Shares were sold in multiple trades at prices ranging from $851.24 to $852.11. 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. |
| 23 | Common | Ordinary Shares | 2026-08-20 | S | D | 610 | $852.66 | 15,072 | D | — | — | (F18) These Ordinary Shares were sold in multiple trades at prices ranging from $852.55 to $853.01. 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. |
| 24 | Derivative | Restricted Share Unit | 2026-08-20 | M | D | 2,267 | $0.00 | 6,804 | D | $0.00 · — to — | 2,267 Ordinary Shares | (F19) Consists of a grant of Restricted Share Unit (RSU) awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan") subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, such RSUs vest as to one-quarter of the shares on August 20, 2026 and then in equal quarterly installments thereafter. (F19) Consists of a grant of Restricted Share Unit (RSU) awarded to the Reporting Person under the Seagate Technology Holdings plc 2022 Equity Incentive Plan (the "2022 Plan") subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, such RSUs vest as to one-quarter of the shares on August 20, 2026 and then in equal quarterly installments thereafter. |
| 25 | Derivative | Restricted Share Unit | 2026-08-20 | M | D | 7,595 | $0.00 | 0 | D | $0.00 · — to — | 7,595 Ordinary Shares | (F20) Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, 100% of such RSUs vested on the first anniversary of the grant date, August 20, 2026. (F20) Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, 100% of such RSUs vested on the first anniversary of the grant date, August 20, 2026. |
| 26 | Derivative | Restricted Share Unit | 2026-08-20 | M | D | 2,279 | $0.00 | 0 | D | $0.00 · — to — | 2,279 Ordinary Shares | (F20) Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, 100% of such RSUs vested on the first anniversary of the grant date, August 20, 2026. (F20) Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, 100% of such RSUs vested on the first anniversary of the grant date, August 20, 2026. |
| 27 | Derivative | NQ Stock Option | 2026-08-20 | M | D | 6,048 | $0.00 | 18,144 | D | $158.40 · — to 2032-08-20 | 6,048 Ordinary Shares | (F21) Consist of Options awarded to the Reporting Person under Plan are subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, one-quarter of the shares vested on August 20, 2026 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. |
| 28 | Derivative | Restricted Share Unit | 2026-08-20 | A | A | 1,775 | $0.00 | 1,775 | D | $0.00 · — to — | 1,775 Ordinary Shares | (F22) Consists of a grant of RSUs awarded to the Reporting Person under the Plan subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, such Options vested as to one-quarter of the shares on August 20, 2026 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. (F22) Consists of a grant of RSUs awarded to the Reporting Person under the Plan subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, such Options vested as to one-quarter of the shares on August 20, 2026 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. |
| 29 | Derivative | Restricted Share Unit | 2026-08-20 | A | A | 417 | $0.00 | 417 | D | $0.00 · — to — | 417 Ordinary Shares | (F23) Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, 100% of such RSUs will vest on the first anniversary of the grant date, August 20, 2027. (F23) Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, 100% of such RSUs will vest on the first anniversary of the grant date, August 20, 2027. |
| 30 | Derivative | Restricted Share Unit | 2026-08-20 | A | A | 1,389 | $0.00 | 1,389 | D | $0.00 · — to — | 1,389 Ordinary Shares | (F23) Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, 100% of such RSUs will vest on the first anniversary of the grant date, August 20, 2027. (F23) Consists of a grant of RSUs awarded to the Reporting Person under the Plan. Subject to the Reporting Person's continuous employment, 100% of such RSUs will vest on the first anniversary of the grant date, August 20, 2027. |
| 31 | Derivative | NQ Stock Option | 2026-08-20 | A | A | 4,736 | $0.00 | 4,736 | D | $850.24 · — to 2033-08-20 | 4,736 Ordinary Shares | (F24) Consists of Options awarded to the Reporting Person under the Plan subject to a four-year vesting schedule. Subject to the Reporting Person's continuous employment, such Options vest as to one-quarter of the shares on August 20, 2027 and the remaining portion shall vest in equal monthly installments over the following three years for a total vesting period of four years. |