Dudediligence.

Seagate Technology Holdings plc

STXNASDAQ · Computer Storage Devices
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Last 12 months

Sales planned on beside the trades reported on , and whether each names a .

Planned ·

$621.6M

71 notices · 909,535 sh

Oct 2025 to Oct 2026

Reported ·

$187.9M

295 sales · 0 buys

Oct 2025 to Jun 2026

The two figures cover different periods.

273 of 295 reported sales carry the 10b5-1 box. Together they are 0.17% of the shares on issue.

PLANNED · FORM 144Oct 2025 to Oct 2026REPORTED · FORM 4Oct 2025 to Jun 2026N2025DJ2026FMAMJJASO2026-09-21: JOHN C MORRIS, Form 1442026-09-15: Morris John Christopher, Form 1442026-09-15: BAN SENG TEH, Form 1442026-09-15: Romano Gianluca, Form 1442026-09-15: MOSLEY WILLIAM D, Form 1442026-09-14: Morris John Christopher, Form 1442026-09-14: BAN SENG TEH, Form 1442026-09-14: Romano Gianluca, Form 1442026-09-14: MOSLEY WILLIAM D, Form 1442026-09-11: GIANLUCA ROMANO, Form 1442026-09-10: Morris John Christopher, Form 1442026-09-10: BAN SENG TEH, Form 1442026-09-10: Romano Gianluca, Form 1442026-09-10: MOSLEY WILLIAM D, Form 1442026-09-01: WILLIAM D. MOSLEY, Form 1442026-09-01: YOLANDA CONYERS, Form 1442026-08-24: JAMES LEE, Form 1442026-08-21: Morris John Christopher, Form 1442026-08-21: BAN SENG TEH, Form 1442026-08-21: Lee James CI, Form 1442026-08-21: Romano Gianluca, Form 1442026-08-21: MOSLEY WILLIAM D, Form 1442026-08-20: JOHN MORRIS, Form 1442026-08-20: BAN SENG TEH, Form 1442026-08-13: BAN SENG TEH, Form 1442026-08-07: GIANLUCA ROMANO, Form 1442026-07-30: JAMES LEE, Form 1442026-07-23: Lee James CI, Form 1442026-06-12: Morris John Christopher, Form 1442026-06-12: BAN SENG TEH, Form 1442026-06-12: Romano Gianluca, Form 1442026-06-12: MOSLEY WILLIAM D, Form 1442026-06-10: Romano Gianluca, Form 1442026-06-10: MOSLEY WILLIAM D, Form 1442026-06-10: Morris John Christopher, Form 1442026-06-10: BAN SENG TEH, Form 1442026-06-04: SHANKAR ARUMUGAVELU, Form 1442026-06-02: Pratik Bhatt, Form 1442026-06-01: WILLIAM D. MOSLEY, Form 1442026-05-20: WILLIAM D. MOSLEY, Form 1442026-05-14: BAN SENG TEH, Form 1442026-05-13: BAN SENG TEH, Form 1442026-05-06: GIANLUCA ROMANO, Form 1442026-05-05: STEPHANIE TILENIUS, Form 1442026-05-04: JOHN MORRIS, Form 1442026-05-04: JAMES LEE, Form 1442026-04-01: WILLIAM MOSLEY, Form 1442026-03-13: JOHN MORRIS, Form 1442026-03-02: WILLIAM MOSLEY, Form 1442026-03-02: YOLANDA CONYERS, Form 1442026-02-24: JOHN MORRIS, Form 1442026-02-23: KIAN FATT CHONG, Form 1442026-02-02: WILLIAM MOSLEY, Form 1442026-01-29: BAN SENG TEH, Form 1442026-01-26: JAMES LEE, Form 1442026-01-12: BAN SENG TEH, Form 1442026-01-02: WILLIAM MOSLEY, Form 1442025-12-15: JOHN MORRIS, Form 1442025-12-11: BAN SENG TEH, Form 1442025-12-02: YOLANDA CONYERS, Form 1442025-12-01: WILLIAM MOSLEY, Form 1442025-11-12: GIANLUCA ROMANO, Form 1442025-11-11: BAN SENG TEH, Form 1442025-11-11: JAMES LEE, Form 1442025-11-10: SHANKAR ARUMUGAVELU, Form 1442025-11-05: BAN SENG TEH, Form 1442025-11-03: WILLIAM MOSLEY, Form 1442025-11-03: STEPHANIE TILENIUS, Form 1442025-10-31: BRUNER JUDY, Form 1442025-10-30: KIAN FATT CHONG, Form 1442025-10-13: BAN SENG TEH, Form 1442025-10-13: Teh Ban Seng, sold2025-10-30: Chong Kian Fatt, sold2025-10-31: Geldmacher Jay L, sold2025-11-03: MOSLEY WILLIAM D, sold2025-11-03: Tilenius Stephanie, sold2025-11-05: Teh Ban Seng, sold2025-11-10: Arumugavelu Shankar, sold2025-11-11: Teh Ban Seng, sold2025-11-11: Lee James CI, sold2025-11-12: Romano Gianluca, sold2025-11-13: Romano Gianluca, sold2025-12-01: MOSLEY WILLIAM D, sold2025-12-02: Conyers Yolanda Lee, sold2025-12-11: Teh Ban Seng, sold2025-12-15: Morris John Christopher, sold2026-01-02: MOSLEY WILLIAM D, sold2026-01-12: Teh Ban Seng, sold2026-01-26: Lee James CI, sold2026-01-29: Teh Ban Seng, sold2026-01-30: Geldmacher Jay L, sold2026-02-02: MOSLEY WILLIAM D, sold2026-02-23: Chong Kian Fatt, sold2026-02-24: Morris John Christopher, sold2026-03-02: Conyers Yolanda Lee, sold2026-03-02: MOSLEY WILLIAM D, sold2026-03-13: Morris John Christopher, sold2026-03-19: MOSLEY WILLIAM D, sold2026-04-01: MOSLEY WILLIAM D, sold2026-05-04: Lee James CI, sold2026-05-04: Morris John Christopher, sold2026-05-05: Tilenius Stephanie, sold2026-05-06: Romano Gianluca, sold2026-05-07: Romano Gianluca, sold2026-05-13: Teh Ban Seng, sold2026-05-20: MOSLEY WILLIAM D, sold2026-06-01: MOSLEY WILLIAM D, sold2026-06-01: MOSLEY WILLIAM D, sold2026-06-01: Conyers Yolanda Lee, sold2026-06-02: BHATT PRAT, sold2026-06-04: Arumugavelu Shankar, sold2026-06-10: Romano Gianluca, sold2026-06-10: MOSLEY WILLIAM D, sold2026-06-10: Morris John Christopher, sold2026-06-10: Teh Ban Seng, sold2026-06-12: MOSLEY WILLIAM D, sold2026-06-12: Romano Gianluca, sold2026-06-12: Teh Ban Seng, sold2026-06-12: Morris John Christopher, sold
under a no plan named▼ salesize is dollars

Form 144 notices, newest first

2026-09-21JOHN C MORRIS, EVP & CTO$12.8M
14,849 shplan 2026-01-29Form 4s on file end Jun 23144 ↗
2026-09-15Morris John Christopher, EVP & CTO$12.5M
16,239 shplan 2026-01-29Form 4s on file end Jun 23144 ↗
2026-09-15BAN SENG TEH, EVP & Chief Commercial Officer$41.2M
52,730 shplan 2026-02-11Form 4s on file end Jun 23144 ↗
2026-09-15Romano Gianluca, EVP & CFO$40.5M
52,483 shplan 2026-04-30Form 4s on file end Jun 23144 ↗
2026-09-15MOSLEY WILLIAM D, CEO$79.4M
102,784 shplan 2026-02-18Form 4s on file end Jun 23144 ↗
2026-09-14Morris John Christopher, EVP & CTO$404,405
518 shplan 2026-01-29Form 4s on file end Jun 23144 ↗
2026-09-14BAN SENG TEH, EVP & Chief Commercial Officer$770,431
989 shplan 2026-02-11Form 4s on file end Jun 23144 ↗
2026-09-14Romano Gianluca, EVP & CFO$783,391
1,003 shplan 2026-04-30Form 4s on file end Jun 23144 ↗
2026-09-14MOSLEY WILLIAM D, CEO$1,533,731
1,963 shplan 2026-02-18Form 4s on file end Jun 23144 ↗
2026-09-11GIANLUCA ROMANO, EVP & CFO$43.5M
50,498 shplan 2026-04-30Form 4s on file end Jun 23144 ↗
2026-09-10Morris John Christopher, EVP & CTO$518,022
601 shplan 2026-01-29Form 4s on file end Jun 23144 ↗
2026-09-10BAN SENG TEH, EVP & Chief Commercial Officer$570,240
663 shplan 2026-02-11Form 4s on file end Jun 23144 ↗
2026-09-10Romano Gianluca, EVP & CFO$1,220,264
1,415 shplan 2026-04-30Form 4s on file end Jun 23144 ↗
2026-09-10MOSLEY WILLIAM D, CEO$2,579,258
2,992 shplan 2026-02-18Form 4s on file end Jun 23144 ↗
2026-09-01WILLIAM D. MOSLEY, CEO$74.6M
90,000 shplan 2026-02-18Form 4s on file end Jun 23144 ↗
2026-09-01YOLANDA CONYERS, Director$621,285
750 shplan 2025-08-04Form 4s on file end Jun 23144 ↗
2026-08-24JAMES LEE, EVP & CLO$7,661,050
9,013 shplan 2026-01-29Form 4s on file end Jun 23144 ↗
2026-08-21Morris John Christopher, EVP & CTO$3,036,443
3,575 shplan 2026-08-20Form 4s on file end Jun 23144 ↗
2026-08-21BAN SENG TEH, EVP & Chief Commercial Officer$8,411,971
9,862 shplan 2026-02-11Form 4s on file end Jun 23144 ↗
2026-08-21Lee James CI, EVP & CLO$3,397,419
4,000 shplan 2026-08-20Form 4s on file end Jun 23144 ↗
2026-08-21Romano Gianluca, EVP & CFO$7,758,856
9,135 shplan 2026-08-20Form 4s on file end Jun 23144 ↗
2026-08-21MOSLEY WILLIAM D, CEO$15.5M
18,200 shplan 2026-08-20Form 4s on file end Jun 23144 ↗
2026-08-20JOHN MORRIS, EVP & CTO$435,429
523 shplan 2026-01-29Form 4s on file end Jun 23144 ↗
2026-08-20BAN SENG TEH, EVP & Chief Commercial Officer$5,098,255
6,048 shplan 2026-02-11Form 4s on file end Jun 23144 ↗
2026-08-13BAN SENG TEH, EVP & Chief Commercial Officer$6,778,028
7,361 shplan 2026-02-11Form 4s on file end Jun 23144 ↗
2026-08-07GIANLUCA ROMANO, EVP & CFO$18.9M
22,211 shplan 2026-04-30Form 4s on file end Jun 23144 ↗
2026-07-30JAMES LEE, EVP & CLO$530,514
694 shplan 2026-01-29Form 4s on file end Jun 23144 ↗
2026-07-23Lee James CI, EVP & CLO$490,741
543 shplan 2026-01-29Form 4s on file end Jun 23144 ↗
2026-06-12Morris John Christopher, EVP & CTO$404,530
466 shplan 2026-01-29144 ↗
Form 4, 2026-06-15: sold 1,364 at $880.19 Form 4 ↗
2026-06-12BAN SENG TEH, EVP & Chief Commercial Officer$870,508
989 shplan 2026-02-11144 ↗
Form 4, 2026-06-15: sold 989 at $880.19 Form 4 ↗
2026-06-12Romano Gianluca, EVP & CFO$784,753
904 shplan 2026-04-30144 ↗
Form 4, 2026-06-15: sold 903 at $880.19 Form 4 ↗
2026-06-12MOSLEY WILLIAM D, CEO$1,535,651
1,769 shplan 2026-02-18144 ↗
Form 4, 2026-06-15: sold 1,768 at $880.19 Form 4 ↗
2026-06-10Romano Gianluca, EVP & CFO$1,184,516
1,351 shplan 2026-04-30144 ↗
Form 4, 2026-06-11: sold 1,351 at $821.75 Form 4 ↗
2026-06-10MOSLEY WILLIAM D, CEO$2,503,178
2,855 shplan 2026-02-18144 ↗
Form 4, 2026-06-11: sold 2,855 at $821.74 Form 4 ↗
2026-06-10Morris John Christopher, EVP & CTO$503,266
574 shplan 2026-01-29144 ↗
Form 4, 2026-06-11: sold 574 at $821.65 Form 4 ↗
2026-06-10BAN SENG TEH, EVP & Chief Commercial Officer$544,893
663 shplan 2026-02-11144 ↗
Form 4, 2026-06-11: sold 663 at $821.86 Form 4 ↗
2026-06-04SHANKAR ARUMUGAVELU, Director$927,680
1,000 shno plan date144 ↗
Form 4, 2026-06-04: sold 1,000 at $927.68 Form 4 ↗
2026-06-02Pratik Bhatt, Director$921,260
1,000 shplan 2026-03-03144 ↗
Form 4, 2026-06-02: sold 1,000 at $929.88 Form 4 ↗
2026-06-01WILLIAM D. MOSLEY, CEO$79.2M
90,000 shplan 2026-02-18144 ↗
Form 4, 2026-06-02: sold 16,220 at $900.21 Form 4 ↗
2026-05-20WILLIAM D. MOSLEY, CEO$22.0M
30,000 shplan 2026-02-18144 ↗
Form 4, 2026-05-21: sold 30,000 at $751.29 Form 4 ↗
2026-05-14BAN SENG TEH, EVP & Chief Commercial Officer$6,540,725
8,003 shplan 2026-02-11Form 4s on file end Jun 23144 ↗
2026-05-13BAN SENG TEH, EVP & Chief Commercial Officer$6,147,254
7,557 shplan 2026-02-11144 ↗
Form 4, 2026-05-14: sold 15,560 at $815.42 Form 4 ↗
2026-05-06GIANLUCA ROMANO, EVP & CFO$18.8M
24,390 shplan 2025-11-26144 ↗
Form 4, 2026-05-08: sold 22,488 at $774.22 Form 4 ↗
2026-05-05STEPHANIE TILENIUS, Director$1,211,250
1,580 shno plan date144 ↗
Form 4, 2026-05-06: sold 1,580 at $766.62 Form 4 ↗
2026-05-04JOHN MORRIS, EVP & CTO$4,864,616
6,692 shplan 2026-01-29144 ↗
Form 4, 2026-05-06: sold 5,626 at $738.37 Form 4 ↗
2026-05-04JAMES LEE, EVP & CLO$506,670
697 shplan 2026-01-29144 ↗
Form 4, 2026-05-06: sold 697 at $741.17 Form 4 ↗
2026-04-01WILLIAM MOSLEY, CEO$7,835,200
20,000 shplan 2025-02-20144 ↗
Form 4, 2026-04-02: sold 20,000 at $420.73 Form 4 ↗
2026-03-13JOHN MORRIS, EVP & CTO$41,886
112 shplan 2025-06-01144 ↗
Form 4, 2026-03-16: sold 112 at $377.44 Form 4 ↗
2026-03-02WILLIAM MOSLEY, CEO$8,156,800
20,000 shplan 2025-02-20144 ↗
Form 4, 2026-03-03: sold 20,000 at $384.76 Form 4 ↗
2026-03-02YOLANDA CONYERS, Director$611,760
1,500 shplan 2025-08-04no Form 4 on file144 ↗
2026-02-24JOHN MORRIS, EVP & CTO$97,776
240 shplan 2025-06-01144 ↗
Form 4, 2026-02-25: sold 240 at $410.00 Form 4 ↗
2026-02-23KIAN FATT CHONG, EVP Global Operations$2,434,740
5,846 shno plan date144 ↗
Form 4, 2026-02-23: sold 5,846 at $416.48 Form 4 ↗
2026-02-02WILLIAM MOSLEY, CEO$8,153,800
20,000 shplan 2025-02-20144 ↗
Form 4, 2026-02-03: sold 20,000 at $429.27 Form 4 ↗
2026-01-29BAN SENG TEH, EVP & Chief Commercial Officer$8,931,995
20,195 shno plan date144 ↗
Form 4, 2026-02-02: sold 20,195 at $442.29 Form 4 ↗
2026-01-26JAMES LEE, EVP & CLO$232,925
673 shplan 2025-08-12144 ↗
Form 4, 2026-01-28: sold 673 at $348.85 Form 4 ↗
2026-01-12BAN SENG TEH, EVP & Chief Commercial Officer$422,626
1,412 shplan 2024-10-31144 ↗
Form 4, 2026-01-14: sold 1,412 at $299.31 Form 4 ↗
2026-01-02WILLIAM MOSLEY, CEO$5,507,800
20,000 shplan 2025-02-20144 ↗
Form 4, 2026-01-06: sold 20,000 at $285.56 Form 4 ↗
2025-12-15JOHN MORRIS, EVP & CTO$32,503
113 shplan 2025-06-01144 ↗
Form 4, 2025-12-16: sold 113 at $291.89 Form 4 ↗
2025-12-11BAN SENG TEH, EVP & Chief Commercial Officer$594,759
2,010 shplan 2024-10-31144 ↗
Form 4, 2025-12-12: sold 2,010 at $295.90 Form 4 ↗
2025-12-02YOLANDA CONYERS, Director$202,575
750 shplan 2025-08-04144 ↗
Form 4, 2025-12-02: sold 750 at $272.91 Form 4 ↗
2025-12-01WILLIAM MOSLEY, CEO$5,533,800
20,000 shplan 2025-02-20144 ↗
Form 4, 2025-12-02: sold 20,000 at $271.03 Form 4 ↗
2025-11-12GIANLUCA ROMANO, EVP & CFO$17.9M
62,023 shplan 2025-08-01144 ↗
Form 4, 2025-11-14: sold 54,021 at $285.16 Form 4 ↗
2025-11-11BAN SENG TEH, EVP & Chief Commercial Officer$408,040
1,412 shplan 2024-10-31144 ↗
Form 4, 2025-11-12: sold 1,412 at $288.98 Form 4 ↗
2025-11-11JAMES LEE, EVP & CLO$204,911
697 shplan 2025-08-12144 ↗
Form 4, 2025-11-12: sold 697 at $288.98 Form 4 ↗
2025-11-10SHANKAR ARUMUGAVELU, Director$1,472,825
5,000 shno plan date144 ↗
Form 4, 2025-11-12: sold 5,000 at $294.57 Form 4 ↗
2025-11-05BAN SENG TEH, EVP & Chief Commercial Officer$1,620,000
6,000 shno plan date144 ↗
Form 4, 2025-11-05: sold 6,000 at $270.00 Form 4 ↗
2025-11-03WILLIAM MOSLEY, CEO$5,117,600
20,000 shplan 2025-02-20144 ↗
Form 4, 2025-11-05: sold 20,000 at $262.82 Form 4 ↗
2025-11-03STEPHANIE TILENIUS, Director$545,084
2,046 shno plan date144 ↗
Form 4, 2025-11-05: sold 2,046 at $266.41 Form 4 ↗
2025-10-31BRUNER JUDY, Director$2,385,000
8,886 shno plan dateno Form 4 on file144 ↗
2025-10-30KIAN FATT CHONG, EVP Global Operations$1,926,209
7,078 shno plan date144 ↗
Form 4, 2025-11-03: sold 7,078 at $272.14 Form 4 ↗
2025-10-13BAN SENG TEH, EVP & Chief Commercial Officer$318,040
1,410 shplan 2024-10-31144 ↗
Form 4, 2025-10-15: sold 1,410 at $225.56 Form 4 ↗