Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Verkauf | 894.27 | 915 | 818,257 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Verkauf | 887.92 | 120 | 106,550 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Verkauf | 883.08 | 320 | 282,585 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Verkauf | 881.16 | 741 | 652,938 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Verkauf | 878.38 | 280 | 245,945 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Verkauf | 877.36 | 418 | 366,738 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Verkauf | 876.54 | 760 | 666,174 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Verkauf | 875.35 | 974 | 852,590 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Verkauf | 874.50 | 986 | 862,261 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Verkauf | 873.49 | 1,040 | 908,431 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Verkauf | 872.42 | 1,000 | 872,424 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Verkauf | 871.56 | 520 | 453,212 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Verkauf | 881.90 | 200 | 176,380 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Verkauf | 868.11 | 160 | 138,897 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Verkauf | 897.28 | 80 | 71,782 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Verkauf | 902.07 | 40 | 36,083 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/21/2026 | Optionsausübung | 158.40 | 915 | 144,936 | Form 4 |
| STX | Romano Gianluca | EVP & CFO | 09/15/2026 | Verkauf | 772.16 | 49,984 | 38,595,510 | Form 4 |
| STX | Mosley William D | CEO | 09/15/2026 | Verkauf | 772.14 | 97,889 | 75,584,326 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 800.47 | 2,480 | 1,985,166 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 799.03 | 400 | 319,611 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 797.97 | 530 | 422,925 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 796.90 | 1,587 | 1,264,673 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 795.95 | 2,166 | 1,724,018 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 794.72 | 1,280 | 1,017,238 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 791.36 | 560 | 443,164 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 788.43 | 280 | 220,760 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 787.26 | 120 | 94,471 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 786.14 | 1,040 | 817,588 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 784.45 | 1,000 | 784,446 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 789.84 | 1,760 | 1,390,119 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 782.56 | 4,147 | 3,245,295 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 781.35 | 1,600 | 1,250,157 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 780.29 | 2,453 | 1,914,063 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 779.27 | 6,682 | 5,207,051 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 778.35 | 7,259 | 5,650,017 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 777.22 | 3,987 | 3,098,765 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 776.20 | 3,242 | 2,516,430 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 775.01 | 2,315 | 1,794,159 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 774.01 | 1,717 | 1,328,982 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 772.65 | 3,451 | 2,666,428 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/15/2026 | Verkauf | 771.38 | 914 | 705,037 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/15/2026 | Verkauf | 772.15 | 15,466 | 11,942,090 | Form 4 |
| STX | Romano Gianluca | EVP & CFO | 09/14/2026 | Optionsausübung | — | 90,380 | — | Form 4 |
| STX | Chong Kian Fatt | EVP Global Operations | 09/14/2026 | Optionsausübung | — | 14,470 | — | Form 4 |
| STX | Mosley William D | CEO | 09/14/2026 | Optionsausübung | — | 177,000 | — | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/14/2026 | Optionsausübung | — | 52,730 | — | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/14/2026 | Optionsausübung | — | 30,130 | — | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/14/2026 | Verkauf | 779.00 | 989 | 770,431 | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/14/2026 | Verkauf | 781.23 | 493 | 385,148 | Form 4 |
| STX | Romano Gianluca | EVP & CFO | 09/14/2026 | Verkauf | 781.24 | 955 | 746,087 | Form 4 |
| STX | Mosley William D | CEO | 09/14/2026 | Verkauf | 781.23 | 1,870 | 1,460,892 | Form 4 |
| STX | Teh Ban Seng | EVP & Chief Commercial Officer | 09/11/2026 | Optionsausübung | — | 989 | — | Form 4 |
| STX | Chong Kian Fatt | EVP Global Operations | 09/11/2026 | Optionsausübung | — | 678 | — | Form 4 |
| STX | Morris John Christopher | EVP & CTO | 09/11/2026 | Optionsausübung | — | 942 | — | Form 4 |
| STX | Romano Gianluca | EVP & CFO | 09/11/2026 | Optionsausübung | — | 1,695 | — | Form 4 |
| STX | Romano Gianluca | EVP & CFO | 09/11/2026 | Verkauf | 868.43 | 240 | 208,423 | Form 4 |
| STX | Romano Gianluca | EVP & CFO | 09/11/2026 | Verkauf | 854.41 | 680 | 581,002 | Form 4 |
| STX | Romano Gianluca | EVP & CFO | 09/11/2026 | Verkauf | 852.87 | 640 | 545,838 | Form 4 |
| STX | Romano Gianluca | EVP & CFO | 09/11/2026 | Verkauf | 849.87 | 80 | 67,990 | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).