Seagate Technology Holdings Plc
A maker of hard disk drives and storage systems, Seagate builds the high-capacity drives that power data centers and edge devices, with products ranging from 1TB to 44TB for uses like gaming, NAS, and cloud storage. Founded in 1978 as Shugart Technology by Alan Shugart and colleagues, it renamed itself Seagate to avoid a trademark clash with Xerox. Its 1980 ST-506 was the first 5.25-inch hard drive for personal computers, shrinking drives from refrigerator-sized machines to fit a desktop.
Granted 1.23M · Sold 1.28M
Granted 3.8K · Sold 1.4K
Granted 10.8K
Granted 17.5K · Sold 10.4K
Granted 395.8K · Sold 329.7K
Granted 13.7K · Sold 24.2K
Granted 10.8K · Sold 10.4K
Granted 72.3K · Sold 59.1K
Granted 10.8K
Granted 10.8K · Sold 1.0K
Granted 10.8K · Sold 6.3K
Granted 48.2K · Sold 39.9K
Granted 10.8K · Sold 6.0K
Granted 7.9K
Granted 206.1K · Sold 230.4K
Granted 10.8K · Sold 6.0K
Granted 2.7K
Granted 470
Granted 23.6K · Sold 19.6K
Granted 10.8K · Sold 13.3K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Mosley William DCEO, Director · 332 transactions | -54.5% | 311.2K | 1.23M | — | 1.28M |
| Zander Edward JDirector · 2 transactions | -1.6% | 45.8Kas of Oct 2023 | 3.8K | — | 1.4K |
| Clemmer Richard LDirector · 5 transactions | — | 33.6K | 10.8K | — | — |
| Schuelke KatherineSVP, CLO & Corporate Secretary · 16 transactions | +1.4% | 29.1Kas of Dec 2023 | 17.5K | — | 10.4K |
| Romano GianlucaEVP & CFO · 174 transactions | -57.4% | 28.5K | 395.8K | — | 329.7K |
| Cannon Michael RDirector · 6 transactions | -39.1% | 20.3K | 13.7K | — | 24.2K |
| Bruner JudyDirector · 6 transactions | +16.1% | 18.6K | 10.8K | — | 10.4K |
| Morris John ChristopherEVP & CTO · 115 transactions | -10.8% | 15.5K | 72.3K | — | 59.1K |
| Haggart Dylan G.Director · 5 transactions | — | 14.5K | 10.8K | — | — |
| Bhatt PratDirector · 6 transactions | +151.4% | 12.9K | 10.8K | — | 1.0K |
| Tilenius StephanieDirector · 9 transactions | +29.5% | 10.7K | 10.8K | — | 6.3K |
| Chong Kian FattEVP Global Operations · 45 transactions | +2882.2% | 9.4K | 48.2K | — | 39.9K |
| Arumugavelu ShankarDirector · 7 transactions | +32.1% | 6.6K | 10.8K | — | 6.0K |
| Bruggeworth Robert ADirector · 3 transactions | — | 6.6Kas of Oct 2024 | 7.9K | — | — |
| Teh Ban SengEVP & Chief Commercial Officer · 172 transactions | -81.9% | 5.2K | 206.1K | — | 230.4K |
| Conyers Yolanda LeeDirector · 15 transactions | +94.2% | 4.1K | 10.8K | — | 6.0K |
| Adams MarkDirector · 2 transactions | -35.3% | 2.0K | 2.7K | — | — |
| Szlosek Thomas ADirector · 2 transactions | — | 470 | 470 | — | — |
| Lee James CIEVP & CLO · 56 transactions | — | 347 | 23.6K | — | 19.6K |
| Geldmacher Jay LDirector · 10 transactions | -95.3% | 223 | 10.8K | — | 13.3K |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 3 years: -2.04M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.