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. (See page 1 of this report.) 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.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2025 | 0 | $0 | 484,887 | $59,046,243 | 281,623 | $11,965,746 |
| 2024 | 0 | $0 | 369,227 | $38,187,891 | 367,607 | $8,117,042 |
| 2023 | 0 | $0 | 608,116 | $45,211,002 | 719,475 | $19,346,875 |
| 2022 | 0 | $0 | 2,127,953 | $229,625,924 | 111,703 | $1,117,550 |
| 2021 | 321 | $26,871 | 15,654,729 | $1,293,379,219 | 777,613 | $34,325,341 |
| 2020 | 0 | $0 | 1,766,778 | $105,643,045 | 224,016 | $3,006,647 |
| 2019 | 2,225,000 | $99,910,000 | 1,053,491 | $58,167,202 | 652,241 | $20,050,595 |
| 2018 | 4,887,078 | $243,864,776 | 899,543 | $48,579,950 | 576,064 | $13,291,547 |
| 2017 | 6,000 | $220,236 | 292,710 | $13,084,803 | 140,252 | $2,704,502 |
| 2016 | 405,000 | $10,040,900 | 90,620 | $2,784,721 | 75,148 | $464,592 |
| 2015 | 0 | $0 | 633,296 | $35,770,725 | 231,351 | $2,421,181 |
| 2014 | 0 | $0 | 10,000 | $620,900 | 0 | $0 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2018-08-16 | Scolnick Kathryn R. (Interim CFO) | Option Ex | 10,577 | 40.91 | 432,705 |
| 2018-08-16 | Valueact Holdings Gp, Llc (Director) | Buy | 181,882 | 53.00 | 9,639,746 |
| 2018-08-15 | Valueact Holdings Gp, Llc (Director) | Buy | 500,000 | 52.78 | 26,390,000 |
| 2018-08-14 | Valueact Holdings Gp, Llc (Director) | Buy | 250,000 | 52.78 | 13,195,000 |
| 2018-08-13 | Valueact Holdings Gp, Llc (Director) | Buy | 509,492 | 51.11 | 26,040,136 |
| 2018-08-10 | Valueact Holdings Gp, Llc (Director) | Buy | 1,000,000 | 50.61 | 50,610,000 |
| 2018-08-09 | Valueact Holdings Gp, Llc (Director) | Buy | 581,291 | 51.36 | 29,855,105 |
| 2018-08-02 | Valueact Holdings Gp, Llc (Director) | Buy | 125,000 | 52.87 | 6,608,750 |
| 2018-08-01 | Valueact Holdings Gp, Llc (Director) | Buy | 321,000 | 52.94 | 16,993,740 |
| 2018-07-31 | Valueact Holdings Gp, Llc (Director) | Buy | 500,000 | 52.65 | 26,325,000 |
| 2018-06-06 | Luczo Stephen J (Executive Chairman & COB) | Sale | 100,000 | 59.05 | 5,905,000 |
| 2018-05-17 | Luczo Stephen J (Executive Chairman & COB) | Sale | 5,681 | 60.00 | 340,860 |
| 2018-05-14 | Nygaard Jeffrey D. (Executive Vice President) | Sale | 2,188 | 57.45 | 125,700 |
| 2018-05-14 | Nygaard Jeffrey D. (Executive Vice President) | Option Ex | 2,188 | 29.87 | 65,355 |
| 2018-05-09 | Zander Edward J | Sale | 23,618 | 57.22 | 1,351,303 |
| 2018-05-08 | Luczo Stephen J (Executive Chairman & COB) | Sale | 100,000 | 56.01 | 5,601,000 |
| 2018-04-10 | Luczo Stephen J (Executive Chairman & COB) | Sale | 4,620 | 60.00 | 277,200 |
| 2018-04-02 | Luczo Stephen J (Executive Chairman & COB) | Sale | 5,380 | 60.00 | 322,800 |
| 2018-03-05 | Morton David H Jr (EVP & CFO) | Sale | 35,142 | 55.00 | 1,932,810 |
| 2018-03-05 | Morton David H Jr (EVP & CFO) | Option Ex | 35,142 | 39.05 | 1,372,470 |
| 2018-02-23 | Geldmacher Jay L | Sale | 4,475 | 52.70 | 235,832 |
| 2018-02-22 | Morton David H Jr (EVP & CFO) | Sale | 11,491 | 51.78 | 595,003 |
| 2018-01-31 | Luczo Stephen J (Executive Chairman & COB) | Sale | 100,000 | 55.57 | 5,557,000 |
| 2018-01-31 | Murphy James J (EVP, Sales & Marketing) | Sale | 14,175 | 55.15 | 781,751 |
| 2018-01-31 | Murphy James J (EVP, Sales & Marketing) | Option Ex | 12,001 | 38.76 | 465,158 |
| 2018-01-30 | Luczo Stephen J (Executive Chairman & COB) | Sale | 241,738 | 54.76 | 13,237,572 |
| 2018-01-30 | Luczo Stephen J (Executive Chairman & COB) | Option Ex | 314,222 | 30.23 | 9,498,931 |
| 2018-01-30 | Park Chong Sup | Sale | 4,026 | 54.22 | 218,289 |
| 2018-01-11 | Brace Philip G (Former President, CSSG) | Sale | 5,000 | 48.40 | 242,000 |
| 2018-01-09 | Brace Philip G (Former President, CSSG) | Sale | 6,000 | 46.67 | 280,020 |
| 2018-01-08 | Morton David H Jr (EVP & CFO) | Sale | 40,263 | 48.78 | 1,964,029 |
| 2018-01-08 | Morton David H Jr (EVP & CFO) | Option Ex | 40,263 | 36.09 | 1,453,091 |
| 2018-01-08 | Brace Philip G (Former President, CSSG) | Sale | 6,000 | 46.21 | 277,260 |
| 2018-01-08 | Luczo Stephen J (Executive Chairman & COB) | Sale | 100,000 | 48.99 | 4,899,000 |
| 2017-11-29 | Zander Edward J | Sale | 15,089 | 38.78 | 585,226 |
| 2017-11-22 | Geldmacher Jay L | Sale | 5,365 | 40.00 | 214,600 |
| 2017-11-06 | Brace Philip G (Former President, CSSG) | Sale | 5,403 | 36.79 | 198,776 |
| 2017-10-27 | Nygaard Jeffrey D. (Executive Vice President) | Buy | 5,000 | 37.38 | 186,900 |
| 2017-10-27 | Brace Philip G (Former President, CSSG) | Sale | 44,944 | 37.19 | 1,671,467 |
| 2017-10-27 | Brace Philip G (Former President, CSSG) | Option Ex | 40,393 | 36.09 | 1,457,783 |
| 2017-10-25 | Moyo Dambisa F | Sale | 3,316 | 38.21 | 126,704 |
| 2017-10-24 | Moyo Dambisa F | Sale | 5,399 | 39.50 | 213,260 |
| 2017-10-23 | Morton David H Jr (EVP & CFO) | Sale | 7,909 | 40.00 | 316,360 |
| 2017-10-17 | Adams Mark | Option Ex | 5,470 | .00 | 0 |
| 2017-09-08 | Luczo Stephen J (Chairman & CEO) | Option Ex | 34,375 | 11.06 | 380,359 |
| 2017-08-01 | Brace Philip G (President, CSSG) | Buy | 1,000 | 33.34 | 33,336 |
| 2017-08-01 | Brace Philip G (President, CSSG) | Sale | 6,000 | 33.34 | 200,046 |
| 2017-06-12 | Massaroni Kenneth M (SVP, Interim CLO) | Sale | 7,500 | 41.17 | 308,775 |
| 2017-06-09 | Morton David H Jr (EVP & CFO) | Sale | 3,040 | 43.26 | 131,510 |
| 2017-05-16 | Park Chong Sup | Sale | 3,809 | 43.63 | 166,186 |
| 2017-05-15 | Re Mark (SVP & CTO) | Sale | 9,607 | 43.47 | 417,616 |
| 2017-05-12 | Massaroni Kenneth M (SVP, Interim CLO) | Sale | 7,500 | 42.58 | 319,350 |
| 2017-04-25 | Luczo Stephen J (Chairman & CEO) | Sale | 100,000 | 50.00 | 5,000,000 |
| 2017-02-24 | Mosley William D (President & COO) | Sale | 38,581 | 47.28 | 1,824,109 |
| 2017-02-24 | Mosley William D (President & COO) | Option Ex | 38,581 | 11.06 | 426,705 |
| 2017-02-22 | Morton David H Jr (EVP & CFO) | Sale | 6,197 | 47.34 | 293,365 |
| 2017-02-13 | Re Mark (SVP & CTO) | Sale | 21,433 | 47.84 | 1,025,247 |
| 2017-02-13 | Re Mark (SVP & CTO) | Option Ex | 21,433 | 20.51 | 439,655 |
| 2017-02-01 | Park Chong Sup | Sale | 1,618 | 44.63 | 72,206 |
| 2016-11-18 | Re Mark (SVP & CTO) | Sale | 11,000 | 38.97 | 428,680 |
| 2016-11-16 | Macpherson Regan J (SVP and General Counsel) | Sale | 3,091 | 38.40 | 118,700 |
| 2016-09-14 | Morton David H Jr (EVP & CFO) | Sale | 1,716 | 36.16 | 62,053 |
| 2016-09-13 | Morton David H Jr (EVP & CFO) | Sale | 2,773 | 35.98 | 99,766 |
| 2016-08-31 | Re Mark (SVP & CTO) | Sale | 5,800 | 33.58 | 194,787 |
| 2016-08-29 | Zander Edward J | Option Ex | 10,000 | 14.82 | 148,250 |
| 2016-08-24 | Re Mark (SVP & CTO) | Sale | 12,750 | 31.84 | 406,011 |
| 2016-08-24 | Re Mark (SVP & CTO) | Option Ex | 8,897 | 11.15 | 99,246 |
| 2016-08-09 | Re Mark (SVP & CTO) | Sale | 3,082 | 32.50 | 100,174 |
| 2016-08-09 | Biondi Frank | Sale | 1,251 | 32.45 | 40,599 |
| 2016-08-09 | Biondi Frank | Option Ex | 1,251 | 14.82 | 18,546 |
| 2016-06-06 | Morton David H Jr (Chief Financial Officer & EVP) | Sale | 8,038 | 23.79 | 191,207 |
| 2016-05-06 | Biondi Frank | Sale | 12,919 | 18.98 | 245,138 |
| 2016-05-03 | Luczo Stephen J (Chairman and CEO) | Buy | 200,000 | 20.08 | 4,016,400 |
| 2016-02-18 | Zander Edward J | Sale | 28,200 | 31.83 | 897,606 |
| 2016-02-18 | Zander Edward J | Option Ex | 55,000 | 3.61 | 198,550 |
| 2016-02-02 | Brace Philip G (President, CSES) | Buy | 5,000 | 29.10 | 145,500 |
| 2016-02-02 | Luczo Stephen J (Chairman and CEO) | Buy | 200,000 | 29.39 | 5,879,000 |
| 2015-11-04 | Morton David H Jr (Chief Financial Officer & EVP) | Sale | 3,178 | 38.94 | 123,735 |
| 2015-11-04 | Morton David H Jr (Chief Financial Officer & EVP) | Option Ex | 4,359 | 20.51 | 89,416 |
| 2015-09-14 | O Malley Patrick J (EVP & Chief Financial Officer) | Sale | 6,993 | 48.28 | 337,636 |
| 2015-08-25 | Re Mark (SVP & Chief Technical Officer) | Sale | 115,334 | 48.75 | 5,622,993 |
| 2015-08-25 | Re Mark (SVP & Chief Technical Officer) | Option Ex | 115,334 | 9.73 | 1,122,545 |
| 2015-08-14 | Pimentel Albert A (President, Global Mkts and CSO) | Sale | 5,000 | 51.78 | 258,900 |
| 2015-08-13 | Pimentel Albert A (President, Global Mkts and CSO) | Sale | 5,000 | 51.56 | 257,780 |
| 2015-08-03 | Luczo Stephen J (Chairman and CEO) | Sale | 65,798 | 51.52 | 3,389,583 |
| 2015-06-05 | Luczo Stephen J (Chairman and CEO) | Sale | 10,000 | 54.15 | 541,450 |
| 2015-05-18 | Luczo Stephen J (Chairman and CEO) | Sale | 30,000 | 56.99 | 1,709,850 |
| 2015-04-27 | Morton David H Jr (SVP, FINANCE, TREASURER & PAO) | Sale | 6,179 | 58.42 | 361,008 |
| 2015-04-27 | Morton David H Jr (SVP, FINANCE, TREASURER & PAO) | Option Ex | 5,983 | 27.06 | 161,911 |
| 2015-04-27 | Dehaan Douglas J (General Manager, Samsung HDD) | Sale | 10,179 | 58.37 | 594,138 |
| 2015-04-27 | Dehaan Douglas J (General Manager, Samsung HDD) | Option Ex | 10,179 | 20.51 | 208,801 |
| 2015-04-24 | Richarz David K (Executive Vice President,Sales) | Sale | 7,625 | 58.20 | 443,744 |
| 2015-04-24 | Richarz David K (Executive Vice President,Sales) | Option Ex | 7,625 | 35.02 | 266,989 |
| 2015-04-24 | Luczo Stephen J (Chairman and CEO) | Sale | 10,000 | 58.45 | 584,490 |
| 2015-04-23 | Pimentel Albert A (President, Global Mkts and CSO) | Sale | 11,830 | 58.99 | 697,887 |
| 2015-04-10 | Mosley William D (President, Ops and Technology) | Sale | 58,581 | 55.51 | 3,251,714 |
| 2015-04-10 | Mosley William D (President, Ops and Technology) | Option Ex | 38,581 | 7.55 | 291,479 |
| 2015-03-11 | Lerner James J (President, Cloud Systems) | Sale | 19,642 | 54.21 | 1,064,753 |
| 2015-03-09 | Luczo Stephen J (Chairman and CEO) | Sale | 10,000 | 57.46 | 574,630 |
| 2015-03-09 | Re Mark (SVP & Chief Technical Officer) | Sale | 914 | 57.19 | 52,275 |
| 2015-03-02 | Luczo Stephen J (Chairman and CEO) | Sale | 10,000 | 61.99 | 619,870 |
| 2015-02-23 | Luczo Stephen J (Chairman and CEO) | Sale | 50,000 | 61.87 | 3,093,500 |
| 2015-02-12 | Massaroni Kenneth M (EVP,General Counsel, CAO) | Sale | 9,250 | 61.44 | 568,357 |
| 2015-02-12 | Massaroni Kenneth M (EVP,General Counsel, CAO) | Option Ex | 9,250 | 11.06 | 102,351 |
| 2015-02-04 | Richarz David K (Executive Vice President,Sales) | Sale | 17,753 | 60.10 | 1,066,937 |
| 2015-02-04 | Luczo Stephen J (Chairman and CEO) | Sale | 100,000 | 60.10 | 6,009,700 |
| 2015-01-29 | Reyes Gregorio (Director) | Sale | 1,459 | 57.08 | 83,275 |
| 2015-01-29 | Reyes Gregorio (Director) | Option Ex | 1,459 | 14.82 | 21,629 |
| 2015-01-27 | Luczo Stephen J (Chairman and CEO) | Sale | 10,000 | 57.45 | 574,500 |
| 2015-01-02 | Mosley William D (EVP, Operations and R&D) | Sale | 58,581 | 66.37 | 3,888,020 |
| 2015-01-02 | Mosley William D (EVP, Operations and R&D) | Option Ex | 38,581 | 4.04 | 156,060 |
| 2014-08-28 | Zander Edward J | Sale | 10,000 | 62.09 | 620,900 |
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.