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.
Sold 24.44M
Granted 5.3K
Bought 4.89M
Granted 9.0K
Sold 3.94M
Sold 32.70M
Granted 10.7K
Bought 2.23M · Sold 14.18M
Granted 1.12M · Sold 1.52M
Granted 195.0K · Sold 256.6K
Granted 308.3K · Sold 325.8K
Granted 587.4K · Sold 1.51M
Granted 15.0K · Sold 521.6K
Granted 339.1K · Sold 379.6K
Granted 2.37M · Sold 1.68M
Granted 763.1K · Sold 1.21M
Granted 67.5K · Bought 1.6K · Sold 47.46M
Granted 7.78M · Bought 1.50M · Sold 14.04M
Granted 904.6K · Sold 1.31M
Granted 686.7K · Sold 1.22M
Granted 4.28M · Sold 3.11M
Granted 31.7K
Granted 878.4K · Sold 748.2K
Granted 305.2K · Sold 187.7K
Granted 752.2K · Sold 599.3K
Granted 343.3K · Bought 5.0K · Sold 192.8K
Granted 448.3K · Sold 394.5K
Granted 2.41M · Sold 2.36M
Granted 277.1K · Sold 295.5K
Granted 234.5K · Sold 190.1K
Granted 181.1K · Sold 113.6K
Granted 254.8K · Sold 227.0K
Granted 102.6K · Bought 322.72 · Sold 60.3K
Granted 11.3K
Granted 268.5K · Bought 150.0K · Sold 334.0K
Granted 172.5K · Sold 112.1K
Granted 639.6K · Sold 455.7K
Granted 266.6K · Sold 236.0K
Granted 43.8K · Sold 903
Granted 37.7K · Sold 5.5K
Granted 417.3K · Sold 371.2K
Granted 100.5K · Sold 62.6K
Granted 10.0K
Granted 35.8K · Sold 10.4K
Granted 86.0K
Granted 37.5K · Sold 19.6K
Granted 13.1K · Sold 3.1K
Granted 111.3K · Bought 6.0K · Sold 73.3K
Granted 72.3K · Sold 59.1K
Granted 15.0K
Granted 38.5K · Sold 12.0K
Granted 10.8K
Granted 54.9K · Bought 1.7K · Sold 1.5K
Granted 86.7K · Sold 86.7K
Granted 18.8K · Sold 1.0K
Granted 56.4K · Sold 27.3K
Granted 438.1K · Sold 392.1K
Granted 48.2K · Sold 39.9K
Granted 5.1K
Granted 16.8K · Sold 6.0K
Granted 7.9K
Granted 269.9K · Sold 276.8K
Granted 17.8K · Sold 10.6K
Granted 12.9K · Sold 6.0K
Granted 6.1K
Granted 3.3K · Sold 2.0K
Granted 36.0K · Sold 7.0K
Granted 20.0K · Sold 20.6K
Granted 470
Granted 23.6K · Sold 19.6K
Granted 1.03M · Sold 1.03M
Granted 74.7K · Sold 50.9K
Granted 8.4K · Sold 8.7K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Hutchins Glenn HDirector · 5 transactions | — | 114.96Mas of Aug 2006 | — | — | 24.44M |
| Haggart Dylan G. +6 co-filersReporting owner · 2 transactions | — | 47.86Mas of Oct 2018 | 5.3K | — | — |
| VA Partners I, LLC +5 co-filersReporting owner · 21 transactions | — | 27.30Mas of Dec 2018 | — | 4.89M | — |
| New SacFormer 10 % Shareholder · 2 transactions | — | 25.00Mas of Jan 2006 | — | — | — |
| Haggart Dylan G. +7 co-filersReporting owner · 4 transactions | — | 13.44Mas of Oct 2022 | 9.0K | — | — |
| VA Partners I, LLC +6 co-filersReporting owner · 6 transactions | — | 13.44Mas of Feb 2022 | — | — | 3.94M |
| Samsung Electronics Co LTD /Fi10% owner · 1 transaction | — | 12.54Mas of Oct 2013 | — | — | 32.70M |
| August Capital III Founders Fund LP +6 co-filers10% owner, Director, 10% owner · 6 transactions | — | 10.43Mas of Jan 2006 | — | — | — |
| Haggart Dylan G. +8 co-filersDirector · 4 transactions | — | 4.27Mas of Oct 2020 | 10.7K | — | — |
| VA Partners I, LLC +7 co-filersReporting owner · 33 transactions | — | 3.73Mas of May 2021 | — | 2.23M | 14.18M |
| Watkins William DCEO · 72 transactions | — | 2.60Mas of Feb 2009 | 1.12M | — | 1.52M |
| Hudson William LExecutive VP & General Counsel · 18 transactions | — | 2.08Mas of Jul 2008 | 195.0K | — | 256.6K |
| Reyes GregorioDirector · 49 transactions | — | 1.76Mas of Oct 2015 | 308.3K | — | 325.8K |
| Dexheimer Brian SPresident, Consumer Solutions · 117 transactions | — | 1.66Mas of Sep 2008 | 587.4K | — | 1.51M |
| Marquardt David FDirector · 45 transactions | — | 1.30Mas of Dec 2009 | 15.0K | — | 521.6K |
| Kryder Mark HSVP, CTO, Research · 9 transactions | — | 887.9Kas of May 2007 | 339.1K | — | 379.6K |
| O Malley Patrick JEVP & Chief Financial Officer · 90 transactions | — | 782.8Kas of Sep 2015 | 2.37M | — | 1.68M |
| Rappaport Andrew10% owner · 1 transaction | — | 779.5Kas of Aug 2006 | — | — | — |
| Glembocki Jerry SSr. VP Heads and Media · 53 transactions | — | 754.8Kas of Sep 2008 | 763.1K | — | 1.21M |
| Davidson JamesDirector · 954 transactions | — | 723.4Kas of Dec 2007 | 67.5K | 1.6K | 47.46M |
| Luczo Stephen JDirector · 415 transactions | — | 679.9Kas of Mar 2022 | 7.78M | 1.50M | 14.04M |
| Chirico James MEVP Global Disc Storage Ops · 43 transactions | — | 492.6Kas of Jul 2007 | 904.6K | — | 1.31M |
| Wickersham David APresident and COO · 60 transactions | — | 410.9Kas of Sep 2008 | 686.7K | — | 1.22M |
| Mosley William DCEO, Director · 507 transactions | — | 311.2K | 4.28M | — | 3.11M |
| Thompson John WendellDirector · 7 transactions | — | 310.5Kas of Jan 2011 | 31.7K | — | — |
| Pope Charles CEVP, PLANNING & DEVELOPMT · 12 transactions | — | 261.4Kas of Oct 2008 | 878.4K | — | 748.2K |
| Pimentel Albert APresident, Global Mkts and CSO · 44 transactions | — | 212.8Kas of Sep 2015 | 305.2K | — | 187.7K |
| Massaroni Kenneth MSVP, Interim CLO · 154 transactions | — | 108.1Kas of Jun 2017 | 752.2K | — | 599.3K |
| Nygaard Jeffrey D.EVP, Operations and Technology · 107 transactions | — | 102.2Kas of Feb 2023 | 343.3K | 5.0K | 192.8K |
| Park Chong SupDirector · 89 transactions | — | 76.7Kas of Oct 2018 | 448.3K | — | 394.5K |
| Whitmore Robert WEVP & Chief Technical Officer · 107 transactions | — | 63.4Kas of May 2013 | 2.41M | — | 2.36M |
| Peterson Glen ASr. VP, Worldwide Finance · 21 transactions | — | 57.5Kas of Sep 2008 | 277.1K | — | 295.5K |
| Biondi FrankDirector · 39 transactions | — | 56.6Kas of Oct 2017 | 234.5K | — | 190.1K |
| Zander Edward JDirector · 47 transactions | — | 45.8Kas of Oct 2023 | 181.1K | — | 113.6K |
| Re MarkSVP & CTO · 45 transactions | — | 40.5Kas of May 2017 | 254.8K | — | 227.0K |
| Naik RaviEVP, Lyve Storage Services · 29 transactions | — | 38.9Kas of Mar 2023 | 102.6K | 322.72 | 60.3K |
| Clemmer Richard LDirector · 7 transactions | — | 33.6K | 11.3K | — | — |
| Dehaan Douglas JGeneral Manager, Samsung HDD · 50 transactions | — | 32.5Kas of Sep 2015 | 268.5K | 150.0K | 334.0K |
| Schuelke KatherineSVP, CLO & Corporate Secretary · 57 transactions | — | 29.1Kas of Dec 2023 | 172.5K | — | 112.1K |
| Romano GianlucaEVP & CFO · 215 transactions | — | 28.5K | 639.6K | — | 455.7K |
| Marshall Lydia MicheauxDirector · 35 transactions | — | 24.5Kas of Oct 2014 | 266.6K | — | 236.0K |
| Cheng Mei WeiDirector · 15 transactions | — | 24.3Kas of Oct 2018 | 43.8K | — | 903 |
| Onken Kristen MDirector · 10 transactions | — | 23.7Kas of Oct 2016 | 37.7K | — | 5.5K |
| Morton David H JrEVP & CFO · 175 transactions | — | 23.3Kas of Jul 2018 | 417.3K | — | 371.2K |
| Cannon Michael RDirector · 31 transactions | — | 20.3K | 100.5K | — | 62.6K |
| Kiernan Donald EDirector · 2 transactions | — | 20.0Kas of Nov 2008 | 10.0K | — | — |
| Bruner JudyDirector · 16 transactions | — | 18.6K | 35.8K | — | 10.4K |
| Abbott ToddEVP, Sales, Mktg and Service · 4 transactions | — | 18.5Kas of May 2008 | 86.0K | — | — |
| Lerner James JPresident, Cloud Systems · 3 transactions | — | 17.9Kas of Mar 2015 | 37.5K | — | 19.6K |
| MacPherson Regan JSVP and General Counsel · 7 transactions | — | 16.7Kas of Nov 2016 | 13.1K | — | 3.1K |
| Brace Philip GFormer President, CSSG · 22 transactions | — | 16.1Kas of Jan 2018 | 111.3K | 6.0K | 73.3K |
| Morris John ChristopherEVP & CTO · 115 transactions | — | 15.5K | 72.3K | — | 59.1K |
| Bradley William WDirector · 3 transactions | — | 15.0Kas of Oct 2009 | 15.0K | — | — |
| Fochtman Jeffrey D.SVP, Business & Marketing · 38 transactions | — | 14.7Kas of Sep 2022 | 38.5K | — | 12.0K |
| Haggart Dylan G.Director · 5 transactions | — | 14.5K | 10.8K | — | — |
| Coleman William T IIIDirector · 26 transactions | — | 14.5Kas of Oct 2020 | 54.9K | 1.7K | 1.5K |
| Wingert Michael JEVP, Maxtor Integration · 20 transactions | — | 13.9Kas of Feb 2007 | 86.7K | — | 86.7K |
| Bhatt PratDirector · 10 transactions | — | 12.9K | 18.8K | — | 1.0K |
| Tilenius StephanieDirector · 27 transactions | — | 10.7K | 56.4K | — | 27.3K |
| Murphy James JEVP, Sales & Marketing · 36 transactions | — | 10.6Kas of Dec 2019 | 438.1K | — | 392.1K |
| Chong Kian FattEVP Global Operations · 45 transactions | — | 9.4K | 48.2K | — | 39.9K |
| Hottier-Fayon GeraldineInterim Prin. Accounting Ofcr · 7 transactions | — | 8.2Kas of Sep 2018 | 5.1K | — | — |
| Arumugavelu ShankarDirector · 11 transactions | — | 6.6K | 16.8K | — | 6.0K |
| Bruggeworth Robert ADirector · 3 transactions | — | 6.6Kas of Oct 2024 | 7.9K | — | — |
| Teh Ban SengEVP & Chief Commercial Officer · 219 transactions | — | 5.2K | 269.9K | — | 276.8K |
| Scolnick Kathryn R.Interim CFO · 12 transactions | — | 4.8Kas of Sep 2018 | 17.8K | — | 10.6K |
| Conyers Yolanda LeeDirector · 17 transactions | — | 4.1K | 12.9K | — | 6.0K |
| Jeong Seh-WoongDirector · 4 transactions | — | 2.5Kas of Oct 2014 | 6.1K | — | — |
| Anderson David ZVP, Finance, Treasurer & PAO · 9 transactions | — | 2.5Kas of Oct 2009 | 3.3K | — | 2.0K |
| Adams MarkDirector · 16 transactions | — | 2.0K | 36.0K | — | 7.0K |
| Rogge Karen MVP Corp. Finance and Treasurer · 9 transactions | — | 1.9Kas of May 2006 | 20.0K | — | 20.6K |
| Szlosek Thomas ADirector · 2 transactions | — | 470 | 470 | — | — |
| Lee James CIEVP & CLO · 56 transactions | — | 347 | 23.6K | — | 19.6K |
| Richarz David KExecutive Vice President,Sales · 80 transactions | — | 319as of Apr 2015 | 1.03M | — | 1.03M |
| Geldmacher Jay LDirector · 39 transactions | — | 223 | 74.7K | — | 50.9K |
| Moyo Dambisa FDirector · 5 transactions | — | 0as of Oct 2017 | 8.4K | — | 8.7K |
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 all recorded history: -150.15M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.