Company / CIK 0001137789
Seagate Technology Holdings plc
- Ticker
- STX
- Insiders on file
- 17
- Members of Congress who traded it
- 4
- Federal contracts on record
- none matched
- Lobbying filings on record
- 4
- SEC filings
- EDGAR ↗
- Latest trade on record
- October 1, 2026
Seagate Technology Holdings plc (STX) has 17 insiders on file who disclosed 1,024 transactions in the last 12 months (0 open-market buys, 742 sales, about $625.9M at reported prices), and 8 congressional trades in its stock are on record. No federal contract award that started in the last 180 days was found for a recipient with exactly this name, and 2 lobbying filings naming it as client report $160K in 2026.
Seagate Technology Holdings plc in charts
Who is trading this stock
Which people account for the buying and selling over the last 12 months?
BoughtSold
8 people account for the disclosed buying and selling in Seagate Technology Holdings plc over the last 12 months; the most active is MOSLEY WILLIAM D with $309M.
Lobbying spend by quarter
How much has Seagate Technology Holdings plc reported spending on federal lobbying?
Seagate Technology Holdings plc reported $320K in lobbying over the last eight quarters, from filings matched by exact company name.
Insiders
| Name | Role | Rows | Bought | Sold | Last filed |
|---|---|---|---|---|---|
| CLEMMER RICHARD L | Director | 4 | 0 | 1 | October 13, 2026 |
| MOSLEY WILLIAM D | CEO | 408 | 0 | 358 | October 2, 2026 |
| Morris John Christopher | EVP & CTO | 105 | 0 | 63 | September 22, 2026 |
| Romano Gianluca | EVP & CFO | 238 | 0 | 182 | September 16, 2026 |
| Chong Kian Fatt | EVP Global Operations | 40 | 0 | 2 | September 16, 2026 |
| Teh Ban Seng | EVP & Chief Commercial Officer | 177 | 0 | 107 | September 16, 2026 |
| BRUNER JUDY | Director | 3 | 0 | 1 | September 10, 2026 |
| Conyers Yolanda Lee | Director | 8 | 0 | 5 | September 3, 2026 |
| Lee James CI | EVP & CLO | 60 | 0 | 40 | August 26, 2026 |
| Arumugavelu Shankar | Director | 6 | 0 | 3 | June 4, 2026 |
| BHATT PRAT | Director | 5 | 0 | 2 | June 2, 2026 |
| Adams Mark | Director | 4 | 0 | 1 | May 11, 2026 |
| Tilenius Stephanie | Director | 7 | 0 | 4 | May 6, 2026 |
| Geldmacher Jay L | Director | 6 | 0 | 3 | February 2, 2026 |
| CANNON MICHAEL R | Director | 4 | 0 | 1 | November 10, 2025 |
| Haggart Dylan G. | Director | 4 | 0 | 1 | October 28, 2025 |
| Szlosek Thomas A | Director | 1 | 0 | 0 | October 28, 2025 |
Rows are this company's Form 4 rows for each person. "Bought" and "sold" count open-market purchases (code P) and sales only. More in insider buying and insider selling.
Members of Congress who traded STX
From periodic transaction reports that name the company's stock. Amounts are the sums of the ranges as filed. Every row is on the STX page.
| Member | Seat | Trades | Bought | Sold | Range as filed | Latest |
|---|---|---|---|---|---|---|
| Kevin Hern | Representative (OK, District 1), Republican | 3 | 0 | 3 | $31K–$115K | September 15, 2026 |
| Lisa C. McClain | Representative (MI, District 9), Republican | 2 | 1 | 1 | $30K–$100K | September 30, 2026 |
| Julie Johnson | Representative (TX, District 32), Democrat | 2 | 0 | 2 | $2,002–$30K | December 18, 2025 |
| Alan Armstrong | Senator (OK), Republican | 1 | 1 | 0 | $1,001–$15K | March 27, 2026 |
Insider transactions
| Filer | Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|---|
| MOSLEY WILLIAM D | STX | Option / conversion M | October 1, 2026 | October 2, 2026 | 1d | 14,000 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 640 | $928 | $594K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 480 | $927 | $445K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 1,080 | $926 | $1000K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 640 | $925 | $592K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 760 | $924 | $702K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 800 | $923 | $738K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 930 | $922 | $857K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 630 | $921 | $580K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 840 | $920 | $772K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 920 | $918 | $845K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 400 | $917 | $367K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 480 | $916 | $440K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 960 | $915 | $878K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 904 | $914 | $826K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 696 | $913 | $636K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 1,146 | $912 | $1.0M | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 840 | $911 | $765K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 307 | $910 | $279K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 1,027 | $909 | $933K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 560 | $907 | $508K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 601 | $906 | $545K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 480 | $905 | $435K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 480 | $904 | $434K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 696 | $903 | $629K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 384 | $903 | $347K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 440 | $901 | $397K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 517 | $900 | $466K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 360 | $898 | $323K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Option / conversion M | October 1, 2026 | October 2, 2026 | 1d | 14,000 | $46 | $647K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 962 | $946 | $910K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 440 | $945 | $416K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 280 | $943 | $264K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 40 | $941 | $38K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 80 | $940 | $75K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 720 | $939 | $676K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 640 | $938 | $601K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 579 | $937 | $543K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 759 | $936 | $711K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 640 | $935 | $598K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 822 | $934 | $768K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 840 | $933 | $784K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 1,320 | $932 | $1.2M | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 1,665 | $931 | $1.6M | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 855 | $930 | $795K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | October 1, 2026 | October 2, 2026 | 1d | 360 | $929 | $334K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Option / conversion M | September 21, 2026 | September 22, 2026 | 1d | 915 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 40 | $902 | $36K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 40 | $900 | $36K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 80 | $897 | $72K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 915 | $894 | $818K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 40 | $893 | $36K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 40 | $891 | $36K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 120 | $888 | $107K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 40 | $886 | $35K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 320 | $883 | $283K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 200 | $882 | $176K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 741 | $881 | $653K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 200 | $880 | $176K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 280 | $878 | $246K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 418 | $877 | $367K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 760 | $877 | $666K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 974 | $875 | $853K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 986 | $875 | $862K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 1,040 | $873 | $908K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 1,000 | $872 | $872K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 520 | $872 | $453K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 200 | $870 | $174K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 80 | $869 | $70K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 160 | $868 | $139K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 40 | $866 | $35K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 80 | $865 | $69K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 40 | $864 | $35K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Option / conversion M | September 21, 2026 | September 22, 2026 | 1d | 915 | $158 | $145K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Option / conversion M | September 14, 2026 | September 16, 2026 | 2d | 30,130 | — | — | derivative | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 15,466 | $772 | $11.9M | Form 4 ↗ | ||
| Morris John Christopher | STX | Option / conversion M | September 14, 2026 | September 16, 2026 | 2d | 30,130 | — | — | Form 4 ↗ | ||
| Teh Ban Seng | STX | Option / conversion M | September 14, 2026 | September 16, 2026 | 2d | 52,730 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 2,480 | $800 | $2.0M | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 400 | $799 | $320K | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 530 | $798 | $423K | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 1,587 | $797 | $1.3M | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 2,166 | $796 | $1.7M | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 1,280 | $795 | $1.0M | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 560 | $791 | $443K | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 1,760 | $790 | $1.4M | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 280 | $788 | $221K | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 120 | $787 | $94K | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 1,040 | $786 | $818K | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 1,000 | $784 | $784K | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 1,760 | $783 | $1.4M | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 4,147 | $783 | $3.2M | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 1,600 | $781 | $1.3M | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 2,453 | $780 | $1.9M | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 6,682 | $779 | $5.2M | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 7,259 | $778 | $5.7M | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 3,987 | $777 | $3.1M | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 3,242 | $776 | $2.5M | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 2,315 | $775 | $1.8M | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 1,717 | $774 | $1.3M | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 3,451 | $773 | $2.7M | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 914 | $771 | $705K | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Option / conversion M | September 14, 2026 | September 16, 2026 | 2d | 52,730 | — | — | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Option / conversion M | September 14, 2026 | September 16, 2026 | 2d | 177,000 | — | — | derivative | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 97,889 | $772 | $75.6M | Form 4 ↗ | ||
| MOSLEY WILLIAM D | STX | Option / conversion M | September 14, 2026 | September 16, 2026 | 2d | 177,000 | — | — | Form 4 ↗ | ||
| Chong Kian Fatt | STX | Option / conversion M | September 14, 2026 | September 16, 2026 | 2d | 14,470 | — | — | derivative | Form 4 ↗ | |
| Chong Kian Fatt | STX | Option / conversion M | September 14, 2026 | September 16, 2026 | 2d | 14,470 | — | — | Form 4 ↗ | ||
| Romano Gianluca | STX | Option / conversion M | September 14, 2026 | September 16, 2026 | 2d | 90,380 | — | — | derivative | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 49,984 | $772 | $38.6M | Form 4 ↗ | ||
| Romano Gianluca | STX | Option / conversion M | September 14, 2026 | September 16, 2026 | 2d | 90,380 | — | — | Form 4 ↗ | ||
| Romano Gianluca | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 13,439 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Romano Gianluca | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 13,475 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Romano Gianluca | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 15,067 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Romano Gianluca | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 8,517 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 360 | $844 | $304K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 280 | $842 | $236K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 320 | $841 | $269K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 1,000 | $840 | $840K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 880 | $839 | $738K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 200 | $838 | $168K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 480 | $837 | $402K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 1,320 | $836 | $1.1M | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 1,440 | $835 | $1.2M | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 2,080 | $834 | $1.7M | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 4,220 | $833 | $3.5M | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 4,589 | $832 | $3.8M | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 7,568 | $831 | $6.3M | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 5,593 | $830 | $4.6M | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 3,321 | $829 | $2.8M | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 1,727 | $828 | $1.4M | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 1,840 | $827 | $1.5M | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 800 | $826 | $661K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 1,400 | $825 | $1.2M | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 880 | $824 | $725K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 1,690 | $822 | $1.4M | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 1,550 | $821 | $1.3M | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 1,320 | $821 | $1.1M | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 1,040 | $819 | $852K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 13,439 | $158 | $2.1M | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 13,475 | $101 | $1.4M | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 15,067 | $64 | $969K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 8,517 | $69 | $586K | 10b5-1 plan | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 3,319 | — | — | derivative | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | September 14, 2026 | September 15, 2026 | 1d | 1,870 | $781 | $1.5M | Form 4 ↗ | ||
| MOSLEY WILLIAM D | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 3,319 | — | — | Form 4 ↗ | ||
| Romano Gianluca | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 1,695 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 14, 2026 | September 15, 2026 | 1d | 955 | $781 | $746K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 1,695 | — | — | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 240 | $868 | $208K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 320 | $864 | $277K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 280 | $861 | $241K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 280 | $860 | $241K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 240 | $857 | $206K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 240 | $856 | $205K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 680 | $854 | $581K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 640 | $853 | $546K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 320 | $851 | $272K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 80 | $850 | $68K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 560 | $850 | $476K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 320 | $848 | $271K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 200 | $847 | $169K | 10b5-1 plan | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 11, 2026 | September 15, 2026 | 4d | 200 | $845 | $169K | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 942 | — | — | derivative | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 14, 2026 | September 15, 2026 | 1d | 493 | $781 | $385K | Form 4 ↗ | ||
| Morris John Christopher | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 942 | — | — | Form 4 ↗ | ||
| Chong Kian Fatt | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 678 | — | — | derivative | Form 4 ↗ | |
| Chong Kian Fatt | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 678 | — | — | Form 4 ↗ | ||
| Teh Ban Seng | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 989 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 14, 2026 | September 15, 2026 | 1d | 989 | $779 | $770K | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 989 | — | — | 10b5-1 plan | Form 4 ↗ | |
| Chong Kian Fatt | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 379 | — | — | derivative | Form 4 ↗ | |
| Chong Kian Fatt | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 202 | — | — | derivative | Form 4 ↗ | |
| Chong Kian Fatt | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 379 | — | — | Form 4 ↗ | ||
| Chong Kian Fatt | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 202 | — | — | Form 4 ↗ | ||
| Teh Ban Seng | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 663 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Teh Ban Seng | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 600 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| Teh Ban Seng | STX | Sell S | September 10, 2026 | September 11, 2026 | 1d | 663 | $860 | $570K | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 663 | — | — | 10b5-1 plan | Form 4 ↗ | |
| Teh Ban Seng | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 600 | — | — | 10b5-1 plan | Form 4 ↗ | |
| Morris John Christopher | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 631 | — | — | derivative | Form 4 ↗ | |
| Morris John Christopher | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 500 | — | — | derivative | Form 4 ↗ | |
| Morris John Christopher | STX | Sell S | September 10, 2026 | September 11, 2026 | 1d | 319 | $862 | $275K | Form 4 ↗ | ||
| Morris John Christopher | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 631 | — | — | Form 4 ↗ | ||
| Morris John Christopher | STX | Sell S | September 10, 2026 | September 11, 2026 | 1d | 253 | $862 | $218K | Form 4 ↗ | ||
| Morris John Christopher | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 500 | — | — | Form 4 ↗ | ||
| Romano Gianluca | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 1,515 | — | — | derivative | Form 4 ↗ | |
| Romano Gianluca | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 959 | — | — | derivative | Form 4 ↗ | |
| Romano Gianluca | STX | Sell S | September 10, 2026 | September 11, 2026 | 1d | 826 | $862 | $712K | Form 4 ↗ | ||
| Romano Gianluca | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 1,515 | — | — | Form 4 ↗ | ||
| Romano Gianluca | STX | Sell S | September 10, 2026 | September 11, 2026 | 1d | 523 | $862 | $450K | Form 4 ↗ | ||
| Romano Gianluca | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 959 | — | — | Form 4 ↗ | ||
| MOSLEY WILLIAM D | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 2,415 | — | — | derivative | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 2,815 | — | — | derivative | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | September 10, 2026 | September 11, 2026 | 1d | 1,316 | $862 | $1.1M | Form 4 ↗ | ||
| MOSLEY WILLIAM D | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 2,415 | — | — | Form 4 ↗ | ||
| MOSLEY WILLIAM D | STX | Sell S | September 10, 2026 | September 11, 2026 | 1d | 1,534 | $862 | $1.3M | Form 4 ↗ | ||
| MOSLEY WILLIAM D | STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 2,815 | — | — | Form 4 ↗ | ||
| MOSLEY WILLIAM D | STX | Option / conversion M | September 1, 2026 | September 3, 2026 | 2d | 14,000 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| MOSLEY WILLIAM D | STX | Sell S | September 1, 2026 | September 3, 2026 | 2d | 80 | $832 | $67K | 10b5-1 plan | Form 4 ↗ |
Showing the 200 most recent of 1,080.
Federal contracts (USAspending, awards started in the last 180 days)
No contract award starting in the last 180 days was found for a recipient named exactly "Seagate Technology Holdings plc". Subsidiaries and differently-spelled recipients are not matched — search contracts.
Lobbying (Senate LDA, as client)
| Period | Registrant | Primary issue | Amount | Source |
|---|---|---|---|---|
| 2026 Q2 | BROWNSTEIN HYATT FARBER SCHRECK, LLP | Trade (domestic/foreign) | $80,000 | LDA ↗ |
| 2026 Q1 | BROWNSTEIN HYATT FARBER SCHRECK, LLP | Trade (domestic/foreign) | $80,000 | LDA ↗ |
| 2025 Q4 | BROWNSTEIN HYATT FARBER SCHRECK, LLP | Trade (domestic/foreign) | $80,000 | LDA ↗ |
| 2025 Q3 | BROWNSTEIN HYATT FARBER SCHRECK, LLP | Trade (domestic/foreign) | $80,000 | LDA ↗ |
Related companies
Companies whose stock was traded by the same people who traded STX, by number of filers in common. It shows overlap in public filings and nothing else.
- Walmart Inc. WMT 4 filers in common
- MICROSOFT CORP MSFT 4 filers in common
- Eaton Corp plc ETN 4 filers in common
- MCDONALDS CORP MCD 4 filers in common
- UNITEDHEALTH GROUP INC UNH 4 filers in common
- DANAHER CORP /DE/ DHR 4 filers in common
- ADOBE INC. ADBE 3 filers in common
- Accenture plc ACN 3 filers in common
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Lobbying disclosure reports Reports are due about 20 days after each quarter ends.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| House Clerk, periodic transaction reports | 6 | 7 | October 22, 2025 | October 12, 2026 | House Clerk search |
| Senate eFD, periodic transaction reports | 1 | 1 | July 21, 2026 | July 21, 2026 | Senate eFD search |
| SEC EDGAR, Form 4 | 137 | 1,080 | October 3, 2025 | October 2, 2026 | Form 4 list on EDGAR |
| Lobbying disclosure filings | 4 filings | — | — | — | LDA.gov search |
Site built October 22, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Insiders and their transactions come from SEC EDGAR Form 4 filings for this issuer. Contracts and lobbying are matched by exact normalized name (suffixes like Inc./Corp. ignored) to USAspending recipients and LDA clients — a conservative match that misses subsidiaries on purpose. See methodology and corrections.
Not investment advice. Public records shown as filed; no recommendation is made or implied.