Insider Trading activities at Seagate Technology Holdings Plc (STX) , Part 5

Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Seagate Technology Holdings Plc (STX) since 2005 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 2005: $360,666,092.
Total stock sales since 2005: $15,375,106,977.
Total stock option exercises since 2005: $271,677,934.


65 insiders reported insider trading activities at Seagate Technology Holdings Plc (STX):
Insider trading activities of Park Chong Sup
Insider trading activities of Cheng Mei Wei
Insider trading activities of Samsung Electronics Co Ltd /fi
Insider trading activities of Wickersham David A
Insider trading activities of Bruggeworth Robert A
Insider trading activities of Davidson James
Insider trading activities of Rogge Karen M
Insider trading activities of Wingert Michael J
Insider trading activities of Chong Kian Fatt
Insider trading activities of Coleman William T Iii
Insider trading activities of Morris John Christopher
Insider trading activities of Johnston John R
Insider trading activities of Biondi Frank
Insider trading activities of Hutchins Glenn H
Insider trading activities of Hudson William L
Insider trading activities of Glembocki Jerry S
Insider trading activities of Cannon Michael R
Insider trading activities of Arumugavelu Shankar
Insider trading activities of Dehaan Douglas J
Insider trading activities of Romano Gianluca
Insider trading activities of Chirico James M
Insider trading activities of Lerner James J
Insider trading activities of Moyo Dambisa F
Insider trading activities of Bruner Judy
Insider trading activities of Morton David H Jr
Insider trading activities of Reyes Gregorio
Insider trading activities of Macpherson Regan J
Insider trading activities of Adams Mark
Insider trading activities of Mosley William D
Insider trading activities of New Sac
Insider trading activities of Tilenius Stephanie
Insider trading activities of Teh Ban Seng
Insider trading activities of Naik Ravi
Insider trading activities of Onken Kristen M
Insider trading activities of Conyers Yolanda Lee
Insider trading activities of Marshall Lydia Micheaux
Insider trading activities of Schuelke Katherine
Insider trading activities of Nygaard Jeffrey D.
Insider trading activities of Brace Philip G
Insider trading activities of Whitmore Robert W
Insider trading activities of Richarz David K
Insider trading activities of Anderson David Z
Insider trading activities of Pimentel Albert A
Insider trading activities of Kryder Mark H
Insider trading activities of Dexheimer Brian S
Insider trading activities of Scolnick Kathryn R.
Insider trading activities of Silver Lake Partners Cayman Lp
Insider trading activities of Haggart Dylan G.
Insider trading activities of Re Mark
Insider trading activities of Valueact Holdings Gp, Llc
Insider trading activities of Massaroni Kenneth M
Insider trading activities of Murphy James J
Insider trading activities of Zander Edward J
Insider trading activities of Fochtman Jeffrey D.
Insider trading activities of Clemmer Richard L
Insider trading activities of Tpg Sac Advisors Iii Corp
Insider trading activities of Watkins William D
Insider trading activities of Bhatt Prat
Insider trading activities of Pope Charles C
Insider trading activities of Peterson Glen A
Insider trading activities of O Malley Patrick J
Insider trading activities of Luczo Stephen J
Insider trading activities of Marquardt David F
Insider trading activities of Hottier-fayon Geraldine
Insider trading activities of Geldmacher Jay L

Table 1. Yearly summary of insider stock purchases, sales, and option exercises at Seagate Technology Holdings Plc (STX).
Insider Buying Insider Sales Option Exercises
Year Shares Value Shares Value Shares Value
2025 0 $0 60,750 $5,690,051 68,624 $0
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 1,693,368 $101,535,277 380,997 $6,691,117
2013 1,742 $84,549 35,205,726 $1,616,566,086 1,758,310 $20,051,985
2012 0 $0 9,567,921 $260,881,544 5,416,197 $65,737,280
2011 0 $0 2,786,309 $53,442,566 3,425,192 $17,761,316
2010 0 $0 27,558 $544,198 14,813 $168,071
2009 1,250,000 $6,478,600 342,984 $5,370,676 100,350 $1,113,059
2008 0 $0 60,046 $1,266,433 169,565 $389,999
2007 1,600 $40,160 24,028,151 $629,270,025 3,865,914 $36,864,577
2006 0 $0 81,446,251 $1,945,946,639 2,784,012 $18,054,658
2005 0 $0 476,120,000 $8,884,159,000 0 $0


Table 3. Detailed insider trading at Seagate Technology Holdings Plc (STX) , Part 5
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2014-05-06 Marshall Lydia Micheaux (Director) Option Ex 10,626 10.68 113,432
2014-05-05 Pimentel Albert A (President, Global Mkts and CSO) Sale 11,870 50.01 593,666
2014-05-02 Morton David H Jr (SVP, FINANCE, TREASURER & PAO) Sale 2,803 51.05 143,095
2014-05-02 Morton David H Jr (SVP, FINANCE, TREASURER & PAO) Option Ex 2,803 17.36 48,668
2014-04-01 Luczo Stephen J (Chairman and CEO) Sale 100,000 57.00 5,700,000
2014-03-10 Re Mark (SVP & Chief Technical Officer) Sale 1,034 50.14 51,844
2014-02-27 Re Mark (SVP & Chief Technical Officer) Sale 12,500 51.78 647,250
2014-02-27 Re Mark (SVP & Chief Technical Officer) Option Ex 12,500 11.06 138,312
2014-02-14 Pimentel Albert A (President, Global Mkts & CSO) Sale 2,965 50.01 148,288
2014-02-14 Richarz David K (Executive Vice President,Sales) Sale 5,300 49.61 262,948
2014-02-14 Richarz David K (Executive Vice President,Sales) Option Ex 5,300 11.06 58,644
2014-02-13 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Sale 4,437 49.57 219,955
2014-02-13 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Option Ex 4,203 17.36 72,976
2014-02-13 Pimentel Albert A (President, Global Mkts & CSO) Sale 2,835 49.96 141,633
2014-02-12 Pimentel Albert A (President, Global Mkts & CSO) Sale 4,200 50.05 210,197
2014-02-07 Cannon Michael R (Director) Sale 25,228 49.91 1,259,255
2014-02-06 Luczo Stephen J (Chairman and CEO) Sale 60,000 49.05 2,943,240
2014-02-04 Geldmacher Jay L (Director) Sale 4,000 49.76 199,052
2014-01-30 Park Chong Sup (Director) Sale 2,270 53.53 121,524
2013-11-25 Marshall Lydia Micheaux (Director) Sale 11,998 49.00 587,902
2013-11-18 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Sale 2,800 49.00 137,200
2013-11-18 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Option Ex 2,800 17.36 48,616
2013-11-15 Massaroni Kenneth M (EVP,General Counsel, CAO) Sale 1,750 50.10 87,675
2013-11-15 Massaroni Kenneth M (EVP,General Counsel, CAO) Option Ex 1,750 11.06 19,363
2013-11-15 Richarz David K (Executive Vice President,Sales) Sale 6,290 48.67 306,165
2013-11-15 Richarz David K (Executive Vice President,Sales) Option Ex 12,500 3.35 41,812
2013-11-14 O Malley Patrick J (EVP & Chief Financial Officer) Sale 109,683 49.68 5,449,161
2013-11-14 O Malley Patrick J (EVP & Chief Financial Officer) Option Ex 109,683 3.35 366,889
2013-11-07 Dehaan Douglas J (General Manager, Samsung HDD) Sale 63,470 47.52 3,016,411
2013-11-07 Dehaan Douglas J (General Manager, Samsung HDD) Option Ex 50,134 13.86 694,807
2013-11-06 Pimentel Albert A (President, Global Mkts & CSO) Sale 10,000 48.51 485,120
2013-11-06 Pimentel Albert A (President, Global Mkts & CSO) Option Ex 10,000 3.85 38,450
2013-11-06 Coleman William T Iii (Director) Buy 1,742 48.54 84,549
2013-11-04 Luczo Stephen J (Chairman and CEO) Sale 326,300 49.09 16,017,088
2013-11-04 Luczo Stephen J (Chairman and CEO) Option Ex 545,269 12.97 7,069,957
2013-11-01 Dehaan Douglas J (General Manager, Samsung HDD) Sale 5,705 48.39 276,070
2013-11-01 Massaroni Kenneth M (EVP,General Counsel, CAO) Sale 15,850 48.67 771,387
2013-11-01 Massaroni Kenneth M (EVP,General Counsel, CAO) Option Ex 1,750 11.06 19,363
2013-11-01 Pimentel Albert A (President, Global Mkts & CSO) Sale 655 48.62 31,846
2013-11-01 Mosley William D (President, Ops & Technology) Sale 41,600 48.38 2,012,691
2013-11-01 Richarz David K (Executive Vice President,Sales) Sale 135,995 49.12 6,679,802
2013-11-01 Richarz David K (Executive Vice President,Sales) Option Ex 76,650 14.61 1,119,703
2013-11-01 O Malley Patrick J (EVP & Chief Financial Officer) Sale 32,282 48.34 1,560,608
2013-11-01 Luczo Stephen J (Chairman and CEO) Sale 187,100 48.81 9,131,602
2013-11-01 Re Mark (SVP & Chief Technical Officer) Sale 7,470 48.61 363,146
2013-11-01 Reyes Gregorio (Director) Sale 4,822 49.24 237,420
2013-11-01 Park Chong Sup (Director) Sale 3,000 49.17 147,522
2013-10-21 Luczo Stephen J (Chairman, President and CEO) Sale 214,132 50.01 10,708,955
2013-10-21 Samsung Electronics Co Ltd /fi (10% Owner) Sale 32,700,000 46.03 1,505,181,000
2013-10-18 Luczo Stephen J (Chairman, President and CEO) Sale 135,868 50.00 6,793,400
2013-10-15 Massaroni Kenneth M (EVP,General Counsel, CAO) Sale 2,750 46.99 129,222
2013-10-15 Massaroni Kenneth M (EVP,General Counsel, CAO) Option Ex 2,750 7.21 19,813
2013-10-01 Massaroni Kenneth M (EVP,General Counsel, CAO) Sale 5,750 43.69 251,217
2013-10-01 Massaroni Kenneth M (EVP,General Counsel, CAO) Option Ex 5,750 7.21 41,428
2013-09-17 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Sale 4,022 40.87 164,359
2013-09-16 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Sale 1,407 41.10 57,831
2013-09-16 Dehaan Douglas J (General Manager, Samsung HDD) Sale 1,165 41.08 47,858
2013-09-16 Massaroni Kenneth M (EVP,General Counsel, CAO) Sale 6,950 40.94 284,505
2013-09-16 Massaroni Kenneth M (EVP,General Counsel, CAO) Option Ex 5,750 7.21 41,428
2013-09-16 Re Mark (SVP & Chief Technical Officer) Sale 1,542 40.89 63,058
2013-09-13 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Sale 1,535 39.95 61,323
2013-09-13 Dehaan Douglas J (General Manager, Samsung HDD) Sale 1,781 39.94 71,133
2013-09-13 Re Mark (SVP & Chief Technical Officer) Sale 2,235 39.86 89,080
2013-09-11 Dehaan Douglas J (General Manager, Samsung HDD) Sale 1,411 40.54 57,201
2013-09-11 Massaroni Kenneth M (EVP,General Counsel, CAO) Sale 2,925 40.44 118,287
2013-09-11 Pimentel Albert A (EVP, Sales/Marketing Officer) Sale 3,175 40.55 128,749
2013-09-11 Mosley William D (EVP, Operations and R&D) Sale 3,177 40.54 128,789
2013-09-11 Richarz David K (Executive Vice President,Sales) Sale 2,125 40.59 86,262
2013-09-11 O Malley Patrick J (EVP & Chief Financial Officer) Sale 3,175 40.56 128,771
2013-09-11 Re Mark (SVP & Chief Technical Officer) Sale 1,525 40.59 61,902
2013-09-03 Massaroni Kenneth M (EVP, General Counsel, CAO) Sale 5,750 38.77 222,927
2013-09-03 Massaroni Kenneth M (EVP, General Counsel, CAO) Option Ex 5,750 7.21 41,428
2013-08-15 Massaroni Kenneth M (EVP, General Counsel, CAO) Sale 5,750 40.59 233,392
2013-08-15 Massaroni Kenneth M (EVP, General Counsel, CAO) Option Ex 5,750 7.21 41,428
2013-08-02 Luczo Stephen J (Chairman, President and CEO) Sale 11,510 40.88 470,586
2013-08-01 Massaroni Kenneth M (EVP, General Counsel, CAO) Sale 5,750 41.29 237,417
2013-08-01 Massaroni Kenneth M (EVP, General Counsel, CAO) Option Ex 5,750 7.21 41,428
2013-07-31 Pimentel Albert A (EVP, Sales/Marketing Officer) Sale 20,000 40.72 814,340
2013-07-31 Pimentel Albert A (EVP, Sales/Marketing Officer) Option Ex 20,000 3.85 76,900
2013-07-26 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Sale 5,698 41.60 237,019
2013-07-26 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Option Ex 5,698 8.52 48,558
2013-07-26 Richarz David K (Executive Vice President,Sales) Sale 179,375 41.35 7,417,694
2013-07-26 Richarz David K (Executive Vice President,Sales) Option Ex 179,375 13.01 2,334,206
2013-07-26 Luczo Stephen J (Chairman, President and CEO) Sale 150,000 41.70 6,254,250
2013-07-15 Massaroni Kenneth M (EVP, General Counsel, CAO) Sale 5,750 46.63 268,122
2013-07-15 Massaroni Kenneth M (EVP, General Counsel, CAO) Option Ex 5,750 7.21 41,428
2013-07-01 Massaroni Kenneth M (EVP, General Counsel, CAO) Sale 5,750 45.50 261,625
2013-07-01 Massaroni Kenneth M (EVP, General Counsel, CAO) Option Ex 5,750 7.21 41,428
2013-06-17 Massaroni Kenneth M (EVP, General Counsel, CAO) Sale 5,750 43.96 252,770
2013-06-17 Massaroni Kenneth M (EVP, General Counsel, CAO) Option Ex 5,750 7.21 41,428
2013-06-03 Massaroni Kenneth M (EVP, General Counsel, CAO) Sale 5,750 43.23 248,572
2013-06-03 Massaroni Kenneth M (EVP, General Counsel, CAO) Option Ex 5,750 7.21 41,428
2013-05-30 Whitmore Robert W (EVP & Chief Technical Officer) Sale 20,000 44.30 885,980
2013-05-30 Whitmore Robert W (EVP & Chief Technical Officer) Option Ex 20,000 9.61 192,260
2013-05-24 Richarz David K (Executive Vice President,Sales) Sale 6,250 42.49 265,575
2013-05-24 Richarz David K (Executive Vice President,Sales) Option Ex 6,250 3.35 20,906
2013-05-22 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Sale 2,849 42.16 120,116
2013-05-22 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Option Ex 2,849 8.52 24,279
2013-05-17 Dehaan Douglas J (General Manager, Samsung HDD) Sale 9,654 41.06 396,354
2013-05-17 Dehaan Douglas J (General Manager, Samsung HDD) Option Ex 9,654 7.25 69,991
2013-05-17 Whitmore Robert W (EVP & Chief Technical Officer) Sale 30,000 41.09 1,232,700
2013-05-17 Whitmore Robert W (EVP & Chief Technical Officer) Option Ex 30,000 9.61 288,390
2013-05-16 Marshall Lydia Micheaux (Director) Sale 19,500 40.75 794,605
2013-05-16 Marshall Lydia Micheaux (Director) Option Ex 10,000 26.46 264,650
2013-05-16 Biondi Frank (Director) Sale 14,375 40.73 585,493
2013-05-16 Biondi Frank (Director) Option Ex 14,375 22.70 326,240
2013-05-15 Massaroni Kenneth M (EVP, General Counsel, CAO) Sale 5,750 40.90 235,175
2013-05-15 Massaroni Kenneth M (EVP, General Counsel, CAO) Option Ex 5,750 7.21 41,428
2013-05-08 Dehaan Douglas J (General Manager, Samsung HDD) Sale 21,964 41.74 916,821
2013-05-08 Dehaan Douglas J (General Manager, Samsung HDD) Option Ex 21,964 8.52 187,177
2013-05-07 Pimentel Albert A (EVP, Sales/Marketing Officer) Sale 41,500 42.19 1,750,719
2013-05-07 Pimentel Albert A (EVP, Sales/Marketing Officer) Option Ex 10,000 3.85 38,450
2013-05-06 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Sale 5,698 41.81 238,239
2013-05-06 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Option Ex 5,698 8.52 48,558
2013-05-06 Richarz David K (Executive Vice President,Sales) Sale 19,303 42.10 812,694
2013-05-06 Richarz David K (Executive Vice President,Sales) Option Ex 18,750 3.35 62,718
2013-05-06 Reyes Gregorio (Director) Sale 16,041 41.37 663,664
2013-05-06 Reyes Gregorio (Director) Option Ex 16,041 15.94 255,661
2013-05-06 Park Chong Sup (Director) Sale 6,666 41.95 279,645
2013-05-06 Park Chong Sup (Director) Option Ex 1,666 14.82 24,698
2013-05-06 Biondi Frank (Director) Sale 19,374 42.05 814,657
2013-05-06 Biondi Frank (Director) Option Ex 19,374 14.68 284,449
2013-05-02 Park Chong Sup (Director) Sale 7,709 38.05 293,327
2013-05-02 Park Chong Sup (Director) Option Ex 7,709 10.68 82,293
2013-05-01 Massaroni Kenneth M (EVP, General Counsel, CAO) Sale 5,750 36.80 211,599
2013-05-01 Massaroni Kenneth M (EVP, General Counsel, CAO) Option Ex 5,750 7.21 41,428
2013-04-15 Massaroni Kenneth M (EVP, General Counsel, CAO) Sale 5,750 35.79 205,792
2013-04-15 Massaroni Kenneth M (EVP, General Counsel, CAO) Option Ex 5,750 7.21 41,428
2013-04-01 Massaroni Kenneth M (EVP, General Counsel, CAO) Sale 5,750 36.86 211,945
2013-04-01 Massaroni Kenneth M (EVP, General Counsel, CAO) Option Ex 5,750 7.21 41,428
2013-03-15 Massaroni Kenneth M (EVP, General Counsel, CAO) Sale 5,750 35.70 205,275
2013-03-15 Massaroni Kenneth M (EVP, General Counsel, CAO) Option Ex 5,750 7.21 41,428
2013-03-06 Zander Edward J (Director) Sale 360 32.95 11,862
2013-03-04 Massaroni Kenneth M (EVP, General Counsel, CAO) Sale 5,750 32.39 186,242
2013-03-04 Massaroni Kenneth M (EVP, General Counsel, CAO) Option Ex 5,750 7.21 41,428
2013-02-15 Massaroni Kenneth M (EVP, General Counsel, CAO) Sale 5,750 34.78 199,985
2013-02-15 Massaroni Kenneth M (EVP, General Counsel, CAO) Option Ex 5,750 7.21 41,428
2013-02-13 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Sale 3,208 35.07 112,507
2013-02-13 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Option Ex 2,849 8.52 24,279
2013-02-12 Dehaan Douglas J (General Manager, Samsung HDD) Sale 41,273 35.00 1,444,596
2013-02-12 Dehaan Douglas J (General Manager, Samsung HDD) Option Ex 41,273 8.52 351,728
2013-02-11 Richarz David K (Executive Vice President,Sales) Sale 60,000 34.89 2,093,520
2013-02-11 Richarz David K (Executive Vice President,Sales) Option Ex 60,000 13.73 823,800
2013-02-04 Whitmore Robert W (EVP & Chief Technical Officer) Sale 40,000 33.88 1,355,040
2013-02-04 Whitmore Robert W (EVP & Chief Technical Officer) Option Ex 40,000 9.61 384,520
2013-02-01 Massaroni Kenneth M (EVP, General Counsel, CAO) Sale 50,000 33.78 1,688,800
2013-02-01 Massaroni Kenneth M (EVP, General Counsel, CAO) Option Ex 50,000 24.63 1,231,500
2013-01-31 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Sale 5,698 33.95 193,452
2013-01-31 Morton David H Jr (VP, FINANCE, TREASURER & PAO) Option Ex 5,698 8.52 48,558
2013-01-31 Richarz David K (Executive Vice President,Sales) Sale 18,750 34.24 642,075

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.



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