Form 4 for STX Seagate Technology
Accepted 2026-05-14 16:52:09 ET · period of report 2026-05-13 · accession 0001137789-26-000105 · 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 | 2026-05-14 16:52 | 2026-05-13+ | STX | Teh Ban Seng | EVP, Chief Commercial Off | S - Sale+OE | $815.42 | -15.6K | 3,691 | -81% | -$12.69M |
| DMT | 2026-05-14 16:52 | 2026-05-14 | STX | Teh Ban Seng | EVP, Chief Commercial Off | M - OptEx | $76.42 | +8,003 | 11.7K | +217% | +$611.6K |
| DMT | 2026-05-14 16:52 | 2026-05-14 | STX | Teh Ban Seng | EVP, Chief Commercial Off | M - OptEx | $0.00 | -8,003 | 2,130 | -79% | $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 | 2026-05-13 | S | D | 520 | $800.26 | 10,728 | D | — | — | (F1) All transactions reported in this Form 4 on 5/13/2026 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 11, 2026. (F2) These Ordinary Shares were sold in multiple trades at prices ranging from $800 to $800.95. 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. |
| 2 | Common | Ordinary Shares | 2026-05-13 | S | D | 200 | $801.39 | 10,528 | D | — | — | (F3) These Ordinary Shares were sold in multiple trades at prices ranging from $801.12 to $802.00. 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 | Common | Ordinary Shares | 2026-05-13 | S | D | 419 | $802.67 | 10,109 | D | — | — | (F4) These Ordinary Shares were sold in multiple trades at prices ranging from $802.19 to $803.15. 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. |
| 4 | Common | Ordinary Shares | 2026-05-13 | S | D | 676 | $803.76 | 9,433 | D | — | — | (F5) These Ordinary Shares were sold in multiple trades at prices ranging from $803.28 to $804.24. 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 | Common | Ordinary Shares | 2026-05-13 | S | D | 509 | $804.71 | 8,924 | D | — | — | (F6) These Ordinary Shares were sold in multiple trades at prices ranging from $804.30 to $805.19. 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. |
| 6 | Common | Ordinary Shares | 2026-05-13 | S | D | 400 | $805.99 | 8,524 | D | — | — | (F7) These Ordinary Shares were sold in multiple trades at prices ranging from $805.63 to $806.36. 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 | Common | Ordinary Shares | 2026-05-13 | S | D | 120 | $807.31 | 8,404 | D | — | — | (F8) These Ordinary Shares were sold in multiple trades at prices ranging from $807.11 to $807.71. 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 | 2026-05-13 | S | D | 429 | $808.60 | 7,975 | D | — | — | (F9) These Ordinary Shares were sold in multiple trades at prices ranging from $808.25 to $809.08. 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. |
| 9 | Common | Ordinary Shares | 2026-05-13 | S | D | 607 | $809.63 | 7,368 | D | — | — | (F10) These Ordinary Shares were sold in multiple trades at prices ranging from $809.25 to $810.00. 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 | 2026-05-13 | S | D | 351 | $810.57 | 7,017 | D | — | — | (F11) These Ordinary Shares were sold in multiple trades at prices ranging from $810.25 to $811.13. 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 | 2026-05-13 | S | D | 272 | $812.20 | 6,745 | D | — | — | (F12) These Ordinary Shares were sold in multiple trades at prices ranging from $811.74 to $812.62. 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. |
| 12 | Common | Ordinary Shares | 2026-05-13 | S | D | 285 | $813.47 | 6,460 | D | — | — | (F13) These Ordinary Shares were sold in multiple trades at prices ranging from $812.76 to $813.69. 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. |
| 13 | Common | Ordinary Shares | 2026-05-13 | S | D | 200 | $814.26 | 6,260 | D | — | — | (F14) These Ordinary Shares were sold in multiple trades at prices ranging from $813.99 to $814.67. 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. |
| 14 | Common | Ordinary Shares | 2026-05-13 | S | D | 80 | $815.51 | 6,180 | D | — | — | |
| 15 | Common | Ordinary Shares | 2026-05-13 | S | D | 160 | $817.23 | 6,020 | D | — | — | (F15) These Ordinary Shares were sold in multiple trades at prices ranging from $816.96 to $817.51. 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 | 2026-05-13 | S | D | 200 | $818.63 | 5,820 | D | — | — | (F16) These Ordinary Shares were sold in multiple trades at prices ranging from $818.00 to $818.92. 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. |
| 17 | Common | Ordinary Shares | 2026-05-13 | S | D | 40 | $819.51 | 5,780 | D | — | — | |
| 18 | Common | Ordinary Shares | 2026-05-13 | S | D | 320 | $821.29 | 5,460 | D | — | — | (F17) These Ordinary Shares were sold in multiple trades at prices ranging from $821.00 to $821.50. 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 | 2026-05-13 | S | D | 40 | $822.19 | 5,420 | D | — | — | |
| 20 | Common | Ordinary Shares | 2026-05-13 | S | D | 80 | $824.96 | 5,340 | D | — | — | |
| 21 | Common | Ordinary Shares | 2026-05-13 | S | D | 80 | $827.50 | 5,260 | D | — | — | |
| 22 | Common | Ordinary Shares | 2026-05-13 | S | D | 1,569 | $830.75 | 3,691 | D | — | — | |
| 23 | Common | Ordinary Shares | 2026-05-14 | M | A | 3,515 | $64.31 | 7,206 | D | — | — | |
| 24 | Common | Ordinary Shares | 2026-05-14 | M | A | 2,358 | $101.34 | 9,564 | D | — | — | |
| 25 | Common | Ordinary Shares | 2026-05-14 | M | A | 2,130 | $68.83 | 11,694 | D | — | — | |
| 26 | Common | Ordinary Shares | 2026-05-14 | S | D | 8,003 | $817.28 | 3,691 | D | — | — | (F18) These Ordinary Shares were sold in multiple trades at prices ranging from $817.24 to $818.02. 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. |
| 27 | Derivative | NQ Options | 2026-05-14 | M | D | 3,515 | $0.00 | 14,060 | D | $64.31 · — to 2030-09-11 | 3,515 Ordinary Shares | (F19) Options granted to the Reporting Person under the Seagate Technology plc 2022 Equity Incentive Plan (the "2022 Plan") are subject to a four-year vesting schedule. One-quarter of the options vested on September 11, 2024 and the remaining options vest in equal monthly installments over the 36 months following September 11, 2024. |
| 28 | Derivative | NQ Options | 2026-05-14 | M | D | 2,358 | $0.00 | 16,509 | D | $101.34 · — to 2031-09-09 | 2,358 Ordinary Shares | (F20) Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 9, 2025 and the remaining options vest in equal monthly installments over the 36 months following September 9, 2025. |
| 29 | Derivative | NQ Options | 2026-05-14 | M | D | 2,130 | $0.00 | 2,130 | D | $68.83 · — to 2029-09-09 | 2,130 Ordinary Shares | (F21) Options granted to the Reporting Person under the Plan are subject to a four-year vesting schedule. One-quarter of the options vested on September 9, 2023 and the remaining options vest in equal monthly installments over the 36 months following September 9, 2023. |