Form 4 for STX Seagate Technology
Accepted 2026-09-22 16:49:47 ET · period of report 2026-09-21 · accession 0001137789-26-000256 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DT | 2026-09-22 16:49 | 2026-09-21 | STX | Morris John Christopher | EVP, CTO | M - OptEx | $158.40 | +915 | 32.0K | +3% | +$144.9K |
| DMT | 2026-09-22 16:49 | 2026-09-21 | STX | Morris John Christopher | EVP, CTO | S - Sale+OE | $877.91 | -9,354 | 22.7K | -29% | -$8.21M |
| DT | 2026-09-22 16:49 | 2026-09-21 | STX | Morris John Christopher | EVP, CTO | M - OptEx | $0.00 | -915 | 17.4K | -5% | $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 | 2026-09-21 | M | A | 915 | $158.40 | 32,047.25 | D | — | — | (F1) All transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on January 29, 2026. |
| 2 | Common | Ordinary Shares | 2026-09-21 | S | D | 40 | $863.66 | 32,007.25 | D | — | — | |
| 3 | Common | Ordinary Shares | 2026-09-21 | S | D | 80 | $865.11 | 31,927.25 | D | — | — | (F2) These Ordinary Shares were sold in multiple trades at prices ranging from $864.79 to $865.43. 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 | 2026-09-21 | S | D | 40 | $865.80 | 31,887.25 | D | — | — | |
| 5 | Common | Ordinary Shares | 2026-09-21 | S | D | 160 | $868.11 | 31,727.25 | D | — | — | (F3) These Ordinary Shares were sold in multiple trades at prices ranging from $867.77 to $868.44. 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 | 2026-09-21 | S | D | 80 | $869.21 | 31,647.25 | D | — | — | (F4) These Ordinary Shares were sold in multiple trades at prices ranging from $868.79 to $869.47. 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 | 2026-09-21 | S | D | 200 | $870.28 | 31,447.25 | D | — | — | (F5) These Ordinary Shares were sold in multiple trades at prices ranging from $869.82 to $870.80. 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 | 2026-09-21 | S | D | 520 | $871.56 | 30,927.25 | D | — | — | (F6) These Ordinary Shares were sold in multiple trades at prices ranging from $870.89 to $871.77. 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 | 2026-09-21 | S | D | 1,000 | $872.42 | 29,927.25 | D | — | — | (F7) These Ordinary Shares were sold in multiple trades at prices ranging from $871.91 to $872.90. 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 | 2026-09-21 | S | D | 1,040 | $873.49 | 28,887.25 | D | — | — | (F8) These Ordinary Shares were sold in multiple trades at prices ranging from $872.94 to $873.93. 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 | 2026-09-21 | S | D | 986 | $874.50 | 27,901.25 | D | — | — | (F9) These Ordinary Shares were sold in multiple trades at prices ranging from $873.96 to $874.94. 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 | 2026-09-21 | S | D | 974 | $875.35 | 26,927.25 | D | — | — | (F10) These Ordinary Shares were sold in multiple trades at prices ranging from $874.98 to $875.96. 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 | 2026-09-21 | S | D | 760 | $876.54 | 26,167.25 | D | — | — | (F11) These Ordinary Shares were sold in multiple trades at prices ranging from $875.99 to $876.93. 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 | 2026-09-21 | S | D | 418 | $877.36 | 25,749.25 | D | — | — | (F12) These Ordinary Shares were sold in multiple trades at prices ranging from $876.99 to $877.76. 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. |
| 15 | Common | Ordinary Shares | 2026-09-21 | S | D | 280 | $878.38 | 25,469.25 | D | — | — | (F13) These Ordinary Shares were sold in multiple trades at prices ranging from $878.01 to $878.82. 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 | 2026-09-21 | S | D | 200 | $879.71 | 25,269.25 | D | — | — | (F14) These Ordinary Shares were sold in multiple trades at prices ranging from $879.58 to $879.90. 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 | 2026-09-21 | S | D | 741 | $881.16 | 24,528.25 | D | — | — | (F15) These Ordinary Shares were sold in multiple trades at prices ranging from $880.62 to $881.54. 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 | 2026-09-21 | S | D | 200 | $881.90 | 24,328.25 | D | — | — | (F16) These Ordinary Shares were sold in multiple trades at prices ranging from $881.65 to $882.17. 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 | 2026-09-21 | S | D | 320 | $883.08 | 24,008.25 | D | — | — | (F17) These Ordinary Shares were sold in multiple trades at prices ranging from $882.78 to $883.77. 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 | 2026-09-21 | S | D | 40 | $886.27 | 23,968.25 | D | — | — | |
| 21 | Common | Ordinary Shares | 2026-09-21 | S | D | 120 | $887.92 | 23,848.25 | D | — | — | (F18) These Ordinary Shares were sold in multiple trades at prices ranging from $887.75 to $888.25. 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 | 2026-09-21 | S | D | 40 | $890.54 | 23,808.25 | D | — | — | |
| 23 | Common | Ordinary Shares | 2026-09-21 | S | D | 40 | $893.15 | 23,768.25 | D | — | — | |
| 24 | Common | Ordinary Shares | 2026-09-21 | S | D | 915 | $894.27 | 22,853.25 | D | — | — | |
| 25 | Common | Ordinary Shares | 2026-09-21 | S | D | 80 | $897.28 | 22,773.25 | D | — | — | |
| 26 | Common | Ordinary Shares | 2026-09-21 | S | D | 40 | $899.53 | 22,733.25 | D | — | — | |
| 27 | Common | Ordinary Shares | 2026-09-21 | S | D | 40 | $902.07 | 22,693.25 | D | — | — | |
| 28 | Derivative | NQ Stock Option | 2026-09-21 | M | D | 915 | $0.00 | 17,378 | D | $158.40 · — to 2032-08-20 | 915 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. Subject to continuous employment, one-quarter 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. |