Insider trading activities (stock purchases, sales, and option exercises)
reported by insiders of Seagate Technology Holdings Plc (STX)
since 2014 are shown in Table 1 and Table 2.
Table 1 shows the monthly insider trading data of Seagate Technology Holdings Plc.
Table 2 shows the detailed insider transactions.
This company's CIK number is 1137789.
Total stock buying since 2014: $354,062,783.
Total stock sales since 2014: $1,930,101,625.
Total stock option exercises since 2014: $116,811,618.
Table 3. Detailed insider trading at Seagate Technology Holdings Plc (STX)
| Trade Date |
Insider Name |
Trade Type |
Shares |
Price ($) |
Value ($) |
| 2025-09-02 | Conyers Yolanda Lee (Director) | Sale | 750 | 167.71 | 125,781 |
| 2025-09-02 | Mosley William D (CEO) | Sale | 20,000 | 167.44 | 3,348,700 |
| 2025-08-11 | Teh Ban Seng (EVP & Chief Commercial Officer) | Sale | 1,724 | 151.61 | 261,375 |
| 2025-08-11 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 1,724 | 73.49 | 126,701 |
| 2025-08-06 | Geldmacher Jay L (Director) | Sale | 2,500 | 150.50 | 376,250 |
| 2025-08-01 | Teh Ban Seng (EVP & Chief Commercial Officer) | Sale | 5,905 | 155.00 | 915,275 |
| 2025-08-01 | Lee James Ci (Chief Legal Officer) | Sale | 1,116 | 153.36 | 171,149 |
| 2025-08-01 | Mosley William D (Chief Executive Officer) | Sale | 20,000 | 154.15 | 3,083,039 |
| 2025-07-31 | Lee James Ci (Chief Legal Officer) | Sale | 3,509 | 152.99 | 536,841 |
| 2025-07-22 | Lee James Ci (Chief Legal Officer) | Option Ex | 6,930 | .00 | 0 |
| 2025-07-11 | Teh Ban Seng (EVP & Chief Commercial Officer) | Sale | 1,725 | 144.00 | 248,400 |
| 2025-07-11 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 1,725 | 73.49 | 126,775 |
| 2025-07-01 | Mosley William D (Chief Executive Officer) | Sale | 20,000 | 144.32 | 2,886,420 |
| 2025-06-16 | Teh Ban Seng (EVP & Chief Commercial Officer) | Sale | 599 | 130.00 | 77,870 |
| 2025-06-09 | Morris John Christopher (SVP & CTO) | Option Ex | 499 | .00 | 0 |
| 2025-06-09 | Chong Kian Fatt (SVP, Global Operations) | Option Ex | 201 | .00 | 0 |
| 2025-06-09 | Teh Ban Seng (EVP & Chief Commercial Officer) | Sale | 3,594 | 130.00 | 467,220 |
| 2025-06-09 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 599 | 130.17 | 77,971 |
| 2025-06-09 | Romano Gianluca (EVP & CFO) | Option Ex | 958 | .00 | 0 |
| 2025-06-09 | Mosley William D (Chief Executive Officer) | Sale | 54,347 | 130.19 | 7,075,435 |
| 2025-06-09 | Mosley William D (Chief Executive Officer) | Option Ex | 57,161 | 27.39 | 1,565,639 |
| 2025-06-04 | Teh Ban Seng (EVP & Chief Commercial Officer) | Sale | 63,418 | 125.00 | 7,927,313 |
| 2025-06-04 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 59,463 | 75.86 | 4,511,041 |
| 2025-06-03 | Teh Ban Seng (EVP & Chief Commercial Officer) | Sale | 11,309 | 120.00 | 1,357,080 |
| 2025-06-03 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 6,923 | 68.83 | 476,510 |
| 2025-06-03 | Mosley William D (Chief Executive Officer) | Sale | 50,000 | 120.27 | 6,013,550 |
| 2025-06-03 | Mosley William D (Chief Executive Officer) | Option Ex | 50,000 | 54.78 | 2,739,000 |
| 2025-06-02 | Conyers Yolanda Lee (Director) | Sale | 750 | 117.01 | 87,757 |
| 2025-06-02 | Mosley William D (Chief Executive Officer) | Sale | 20,000 | 118.69 | 2,373,780 |
| 2025-05-30 | Romano Gianluca (EVP & CFO) | Sale | 26,816 | 117.62 | 3,154,017 |
| 2025-05-30 | Romano Gianluca (EVP & CFO) | Option Ex | 26,816 | 87.34 | 2,342,109 |
| 2025-05-29 | Romano Gianluca (EVP & CFO) | Sale | 25,018 | 117.36 | 2,936,162 |
| 2025-05-27 | Teh Ban Seng (EVP & Chief Commercial Officer) | Sale | 4,201 | 115.00 | 483,115 |
| 2025-05-22 | Chong Kian Fatt (SVP, Global Operations) | Sale | 6,410 | 111.26 | 713,150 |
| 2025-05-22 | Mosley William D (Chief Executive Officer) | Sale | 70,000 | 108.58 | 7,600,950 |
| 2025-05-22 | Bruner Judy (Director) | Sale | 10,446 | 108.71 | 1,135,563 |
| 2025-04-01 | Mosley William D (Chief Executive Officer) | Sale | 20,000 | 84.45 | 1,689,100 |
| 2025-03-22 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 3,514 | .00 | 0 |
| 2025-03-11 | Morris John Christopher (SVP & CTO) | Option Ex | 941 | .00 | 0 |
| 2025-03-11 | Chong Kian Fatt (SVP, Global Operations) | Option Ex | 678 | .00 | 0 |
| 2025-03-11 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 988 | .00 | 0 |
| 2025-03-11 | Romano Gianluca (EVP & CFO) | Option Ex | 1,694 | .00 | 0 |
| 2025-03-11 | Mosley William D (Chief Executive Officer) | Option Ex | 3,318 | .00 | 0 |
| 2025-03-09 | Morris John Christopher (SVP & CTO) | Option Ex | 499 | .00 | 0 |
| 2025-03-09 | Chong Kian Fatt (SVP, Global Operations) | Option Ex | 201 | .00 | 0 |
| 2025-03-09 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 599 | .00 | 0 |
| 2025-03-09 | Romano Gianluca (EVP & CFO) | Option Ex | 958 | .00 | 0 |
| 2025-03-09 | Mosley William D (Chief Executive Officer) | Option Ex | 2,814 | .00 | 0 |
| 2025-03-03 | Conyers Yolanda Lee (Director) | Sale | 750 | 102.95 | 77,212 |
| 2025-03-03 | Mosley William D (Chief Executive Officer) | Sale | 20,000 | 101.83 | 2,036,639 |
| 2025-02-22 | Romano Gianluca (EVP & CFO) | Option Ex | 14,043 | .00 | 0 |
| 2025-02-20 | Morris John Christopher (SVP & CTO) | Option Ex | 4,428 | .00 | 0 |
| 2025-02-20 | Chong Kian Fatt (SVP, Global Operations) | Option Ex | 4,428 | .00 | 0 |
| 2025-02-20 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 5,905 | .00 | 0 |
| 2025-02-20 | Romano Gianluca (EVP & CFO) | Option Ex | 11,808 | .00 | 0 |
| 2025-02-20 | Mosley William D (Chief Executive Officer) | Option Ex | 11,808 | .00 | 0 |
| 2025-02-03 | Mosley William D (Chief Executive Officer) | Sale | 20,000 | 94.36 | 1,887,100 |
| 2024-12-12 | Morris John Christopher (SVP & CTO) | Sale | 141 | 98.46 | 13,882 |
| 2024-12-11 | Morris John Christopher (SVP & CTO) | Option Ex | 941 | .00 | 0 |
| 2024-12-11 | Chong Kian Fatt (SVP, Global Operations) | Option Ex | 678 | 98.39 | 66,708 |
| 2024-12-11 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 988 | .00 | 0 |
| 2024-12-11 | Romano Gianluca (EVP & CFO) | Option Ex | 1,694 | .00 | 0 |
| 2024-12-11 | Mosley William D (Chief Executive Officer) | Option Ex | 3,318 | .00 | 0 |
| 2024-12-09 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 599 | .00 | 0 |
| 2024-12-02 | Conyers Yolanda Lee (Director) | Sale | 750 | 101.82 | 76,365 |
| 2024-12-02 | Mosley William D (Chief Executive Officer) | Sale | 20,000 | 102.94 | 2,058,740 |
| 2024-11-08 | Chong Kian Fatt (SVP, Global Operations) | Sale | 9,182 | 105.50 | 968,701 |
| 2024-11-01 | Mosley William D (Chief Executive Officer) | Sale | 20,000 | 100.11 | 2,002,100 |
| 2024-10-24 | Geldmacher Jay L (Director) | Sale | 4,100 | 103.30 | 423,530 |
| 2024-10-22 | Morris John Christopher (SVP & CTO) | Sale | 1,131 | 111.90 | 126,558 |
| 2024-10-19 | Morris John Christopher (SVP & CTO) | Option Ex | 3,524 | .00 | 0 |
| 2024-10-19 | Conyers Yolanda Lee (Director) | Option Ex | 4,271 | .00 | 0 |
| 2024-10-19 | Arumugavelu Shankar (Director) | Option Ex | 4,271 | .00 | 0 |
| 2024-10-19 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 4,386 | .00 | 0 |
| 2024-10-19 | Romano Gianluca (EVP & CFO) | Option Ex | 9,398 | .00 | 0 |
| 2024-10-19 | Haggart Dylan G. (Director) | Option Ex | 4,271 | .00 | 0 |
| 2024-10-19 | Tilenius Stephanie (Director) | Option Ex | 4,271 | .00 | 0 |
| 2024-10-19 | Bhatt Prat (Director) | Option Ex | 4,271 | .00 | 0 |
| 2024-10-19 | Geldmacher Jay L (Director) | Option Ex | 4,271 | .00 | 0 |
| 2024-10-19 | Clemmer Richard L (Director) | Option Ex | 4,271 | .00 | 0 |
| 2024-10-19 | Cannon Michael R (Director) | Option Ex | 5,436 | .00 | 0 |
| 2024-10-19 | Bruggeworth Robert A (Director) | Option Ex | 4,271 | .00 | 0 |
| 2024-10-19 | Bruner Judy (Director) | Option Ex | 4,271 | .00 | 0 |
| 2024-10-01 | Mosley William D (Chief Executive Officer) | Sale | 20,000 | 107.94 | 2,158,900 |
| 2024-09-26 | Teh Ban Seng (EVP & Chief Commercial Officer) | Sale | 4,872 | 110.00 | 535,920 |
| 2024-09-26 | Mosley William D (Chief Executive Officer) | Sale | 141,785 | 110.18 | 15,621,304 |
| 2024-09-26 | Mosley William D (Chief Executive Officer) | Option Ex | 141,785 | 50.29 | 7,130,367 |
| 2024-09-12 | Morris John Christopher (SVP & CTO) | Sale | 565 | 101.96 | 57,607 |
| 2024-09-11 | Morris John Christopher (SVP & CTO) | Option Ex | 3,766 | .00 | 0 |
| 2024-09-11 | Chong Kian Fatt (SVP, Global Operations) | Option Ex | 2,712 | .00 | 0 |
| 2024-09-11 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 3,955 | .00 | 0 |
| 2024-09-11 | Romano Gianluca (EVP & CFO) | Option Ex | 6,778 | .00 | 0 |
| 2024-09-11 | Mosley William D (Chief Executive Officer) | Option Ex | 13,275 | .00 | 0 |
| 2024-09-10 | Morris John Christopher (SVP & CTO) | Sale | 9,414 | 101.27 | 953,355 |
| 2024-09-09 | Morris John Christopher (SVP & CTO) | Option Ex | 6,232 | .00 | 0 |
| 2024-09-09 | Chong Kian Fatt (SVP, Global Operations) | Option Ex | 4,093 | .00 | 0 |
| 2024-09-09 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 5,471 | .00 | 0 |
| 2024-09-09 | Romano Gianluca (EVP & CFO) | Option Ex | 14,845 | .00 | 0 |
| 2024-09-09 | Mosley William D (Chief Executive Officer) | Option Ex | 56,156 | .00 | 0 |
| 2024-09-04 | Conyers Yolanda Lee (Director) | Sale | 750 | 96.10 | 72,075 |
| 2024-09-03 | Mosley William D (Chief Executive Officer) | Sale | 20,000 | 97.76 | 1,955,140 |
| 2024-08-07 | Romano Gianluca (EVP & CFO) | Sale | 25,760 | 94.50 | 2,434,397 |
| 2024-08-07 | Romano Gianluca (EVP & CFO) | Option Ex | 4,837 | 46.23 | 223,614 |
| 2024-08-07 | Mosley William D (Chief Executive Officer) | Sale | 20,000 | 93.97 | 1,879,440 |
| 2024-07-24 | Teh Ban Seng (EVP & Chief Commercial Officer) | Sale | 10,117 | 110.00 | 1,112,870 |
| 2024-07-24 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 10,117 | 68.83 | 696,353 |
| 2024-06-11 | Morris John Christopher (SVP, HDD & SDD Products & CTO) | Sale | 5,928 | 99.50 | 589,836 |
| 2024-06-11 | Teh Ban Seng (EVP & Chief Commercial Officer) | Sale | 10,742 | 100.00 | 1,074,200 |
| 2024-06-09 | Morris John Christopher (SVP, HDD & SDD Products & CTO) | Option Ex | 499 | .00 | 0 |
| 2024-06-09 | Chong Kian Fatt (SVP, Global Operations) | Option Ex | 201 | .00 | 0 |
| 2024-06-09 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 599 | .00 | 0 |
| 2024-06-09 | Romano Gianluca (EVP & CFO) | Option Ex | 958 | .00 | 0 |
| 2024-06-09 | Mosley William D (Chief Executive Officer) | Option Ex | 2,814 | .00 | 0 |
| 2024-05-14 | Teh Ban Seng (EVP & Chief Commercial Officer) | Sale | 9,703 | 95.00 | 921,785 |
| 2024-05-07 | Morris John Christopher (SVP, HDD & SDD Products & CTO) | Sale | 11,158 | 90.00 | 1,004,220 |
| 2024-03-09 | Morris John Christopher (SVP, HDD & SDD Products & CTO) | Sale | 180 | 92.69 | 16,684 |
| 2024-03-09 | Morris John Christopher (SVP, HDD & SDD Products & CTO) | Option Ex | 499 | .00 | 0 |
| 2024-03-09 | Chong Kian Fatt (SVP, Global Operations) | Option Ex | 201 | .00 | 0 |
| 2024-03-09 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 599 | .00 | 0 |
| 2024-03-09 | Romano Gianluca (EVP & CFO) | Sale | 485 | 92.69 | 44,954 |
| 2024-03-09 | Romano Gianluca (EVP & CFO) | Option Ex | 958 | .00 | 0 |
| 2024-03-09 | Mosley William D (Chief Executive Officer) | Sale | 1,000 | 92.69 | 92,690 |
| 2024-03-09 | Mosley William D (Chief Executive Officer) | Option Ex | 2,814 | .00 | 0 |
| 2024-03-04 | Chong Kian Fatt (SVP, Global Operations) | Sale | 11,353 | 97.53 | 1,107,258 |
| 2024-02-22 | Romano Gianluca (EVP & CFO) | Sale | 5,611 | 88.02 | 493,880 |
| 2024-02-22 | Romano Gianluca (EVP & CFO) | Option Ex | 14,042 | .00 | 0 |
| 2024-02-07 | Geldmacher Jay L (Director) | Sale | 4,500 | 87.00 | 391,500 |
| 2023-12-13 | Teh Ban Seng (EVP & Chief Commercial Officer) | Sale | 10,000 | 85.00 | 850,000 |
| 2023-12-09 | Morris John Christopher (SVP, HDD & SDD Products & CTO) | Sale | 228 | 80.59 | 18,374 |
| 2023-12-09 | Morris John Christopher (SVP, HDD & SDD Products & CTO) | Option Ex | 499 | .00 | 0 |
| 2023-12-09 | Chong Kian Fatt (SVP, Global Operations) | Option Ex | 201 | .00 | 0 |
| 2023-12-09 | Teh Ban Seng (EVP & Chief Commercial Officer) | Option Ex | 599 | .00 | 0 |
| 2023-12-09 | Romano Gianluca (EVP & CFO) | Sale | 475 | 80.59 | 38,280 |
| 2023-12-09 | Romano Gianluca (EVP & CFO) | Option Ex | 958 | .00 | 0 |
| 2023-12-09 | Mosley William D (Chief Executive Officer) | Sale | 1,396 | 80.59 | 112,503 |
| 2023-12-09 | Mosley William D (Chief Executive Officer) | Option Ex | 2,814 | .00 | 0 |
| 2023-12-09 | Schuelke Katherine (SVP, CLO & Corporate Secretary) | Sale | 248 | 80.59 | 19,986 |
| 2023-12-09 | Schuelke Katherine (SVP, CLO & Corporate Secretary) | Option Ex | 499 | .00 | 0 |
| 2023-12-08 | Teh Ban Seng (EVP & Chief Commercial Officer) | Sale | 8,000 | 79.61 | 636,840 |
| 2023-12-08 | Mosley William D (Chief Executive Officer) | Sale | 153,188 | 80.21 | 12,287,209 |
| 2023-12-08 | Mosley William D (Chief Executive Officer) | Option Ex | 153,188 | 30.95 | 4,741,168 |
| 2023-11-29 | Romano Gianluca (EVP & CFO) | Sale | 61,895 | 79.01 | 4,890,509 |
| 2023-11-29 | Romano Gianluca (EVP & CFO) | Option Ex | 61,895 | 48.97 | 3,030,812 |
| 2023-11-15 | Teh Ban Seng (EVP & Chief Commercial Officer) | Sale | 5,000 | 75.00 | 375,025 |
| 2023-11-03 | Romano Gianluca (EVP & CFO) | Sale | 16,982 | 73.36 | 1,245,884 |
| 2023-10-23 | Conyers Yolanda Lee (Director) | Option Ex | 3,803 | .00 | 0 |
| 2023-10-23 | Arumugavelu Shankar (Director) | Option Ex | 3,803 | .00 | 0 |
| 2023-10-23 | Haggart Dylan G. (Director) | Option Ex | 3,803 | .00 | 0 |
| 2023-10-23 | Tilenius Stephanie (Director) | Option Ex | 3,803 | .00 | 0 |
| 2023-10-23 | Bhatt Prat (Director) | Option Ex | 3,803 | .00 | 0 |
Insider trading activities including stock purchases, stock sales, and option exercises
of STX listed in the above tables cannot be completely guaranteed as to their accuracy.
For more insider trading information of Seagate Technology Holdings Plc (symbol STX,
CIK number 1137789) see
the Securities and Exchange Commission (SEC) website.