Form 4 for STX Seagate Technology
Accepted 2026-06-02 17:16:53 ET · period of report 2026-06-01 · accession 0001137789-26-000117 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MT | 2026-06-02 17:16 | 2026-06-01 | STX | MOSLEY WILLIAM D | CEO, Dir | S - Sale | $924.99 | -13.8K | 323.6K | -4% | -$12.75M |
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 | 2026-06-01 | S | D | 320 | $916.77 | 337,051 | 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 February 18, 2026. (F2) These Ordinary Shares were sold in multiple trades at prices ranging from $916.34 to $917.19. 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. |
| 2 | Common | Ordinary Shares | 2026-06-01 | S | D | 480 | $918.75 | 336,571 | D | — | — | (F3) These Ordinary Shares were sold in multiple trades at prices ranging from $918.07 to $919.05. 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. |
| 3 | Common | Ordinary Shares | 2026-06-01 | S | D | 1,691 | $919.62 | 334,880 | D | — | — | (F4) These Ordinary Shares were sold in multiple trades at prices ranging from $919.24 to $920.21. 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 | 2026-06-01 | S | D | 1,730 | $920.90 | 333,150 | D | — | — | (F5) These Ordinary Shares were sold in multiple trades at prices ranging from $920.26 to $921.25. 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. |
| 5 | Common | Ordinary Shares | 2026-06-01 | S | D | 1,807 | $921.75 | 331,343 | D | — | — | (F6) These Ordinary Shares were sold in multiple trades at prices ranging from $921.33 to $922.32. 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 | 2026-06-01 | S | D | 1,598 | $922.95 | 329,745 | D | — | — | (F7) These Ordinary Shares were sold in multiple trades at prices ranging from $922.39 to $923.38. 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 | 2026-06-01 | S | D | 480 | $923.58 | 329,265 | D | — | — | (F8) These Ordinary Shares were sold in multiple trades at prices ranging from $923.39 to $923.92. 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. |
| 8 | Common | Ordinary Shares | 2026-06-01 | S | D | 360 | $924.88 | 328,905 | D | — | — | (F9) These Ordinary Shares were sold in multiple trades at prices ranging from $924.39 to $925.33. 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 | 2026-06-01 | S | D | 871 | $925.87 | 328,034 | D | — | — | (F10) These Ordinary Shares were sold in multiple trades at prices ranging from $925.39 to $926.38. 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 | 2026-06-01 | S | D | 320 | $926.83 | 327,714 | D | — | — | (F11) These Ordinary Shares were sold in multiple trades at prices ranging from $926.39 to $927.19. 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. |
| 11 | Common | Ordinary Shares | 2026-06-01 | S | D | 320 | $928.21 | 327,394 | D | — | — | (F12) These Ordinary Shares were sold in multiple trades at prices ranging from $927.63 to $928.56. 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 | 2026-06-01 | S | D | 1,480 | $929.38 | 325,914 | D | — | — | (F13) These Ordinary Shares were sold in multiple trades at prices ranging from $928.88 to $929.83. 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 | 2026-06-01 | S | D | 240 | $930.12 | 325,674 | D | — | — | (F14) These Ordinary Shares were sold in multiple trades at prices ranging from $929.90 to $930.47. 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. |
| 14 | Common | Ordinary Shares | 2026-06-01 | S | D | 200 | $931.65 | 325,474 | D | — | — | (F15) These Ordinary Shares were sold in multiple trades at prices ranging from $931.53 to $931.85. 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 | 2026-06-01 | S | D | 415 | $933.25 | 325,059 | D | — | — | (F16) These Ordinary Shares were sold in multiple trades at prices ranging from $932.70 to $933.66. 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. |
| 16 | Common | Ordinary Shares | 2026-06-01 | S | D | 440 | $934.17 | 324,619 | D | — | — | (F17) These Ordinary Shares were sold in multiple trades at prices ranging from $933.99 to $934.50. 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. |
| 17 | Common | Ordinary Shares | 2026-06-01 | S | D | 320 | $935.44 | 324,299 | D | — | — | (F18) These Ordinary Shares were sold in multiple trades at prices ranging from $935.19 to $935.81. 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 | 2026-06-01 | S | D | 355 | $937.39 | 323,944 | D | — | — | (F19) These Ordinary Shares were sold in multiple trades at prices ranging from $937.08 to $937.64. 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. |
| 19 | Common | Ordinary Shares | 2026-06-01 | S | D | 273 | $938.82 | 323,671 | D | — | — | (F20) These Ordinary Shares were sold in multiple trades at prices ranging from $938.43 to $939.18. 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 | 2026-06-01 | S | D | 80 | $940.00 | 323,591 | D | — | — | (F21) These Ordinary Shares were sold in multiple trades at prices ranging from $939.92 to $940.07. 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. |