Transactions
105
Insider / Seagate Technology Holdings plc
Morris John Christopher
EVP & CTO at Seagate Technology Holdings plc
- Ticker
- STX
- First filing on record
- December 11, 2025
- Latest trade on record
- September 21, 2026
- SEC filings
- EDGAR ↗
Morris John Christopher, EVP & CTO at Seagate Technology Holdings plc, has disclosed 105 transactions in STX since December 11, 2025: 0 purchases (0 open-market buys) and 63 sales, worth about $32.3M at the reported prices. The latest was filed September 22, 2026, 1 day after the trade.
Open-market buys
0
Sales
63
Avg. disclosure lag
2.0d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months Morris John Christopher made no purchases and 63 sales worth $32M, plus 42 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
Morris John Christopher has traded 1 stock on record; the largest by dollars is STX.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
0 of 17 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| S | Open-market sale | 56 | 38,120 | $30.6M |
| M | Option exercise or conversion | 38 | 102,676 | $228K |
| F | Shares withheld for tax | 7 | 3,924 | $1.5M |
| A | Grant or award | 4 | 10,161 | — |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 95 | 0 | 59 · $31.8M |
| 2025 | 10 | 0 | 4 · $311K |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| STX | Option / conversion M | September 21, 2026 | September 22, 2026 | 1d | 915 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 40 | $902 | $36K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 40 | $900 | $36K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 80 | $897 | $72K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 915 | $894 | $818K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 40 | $893 | $36K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 40 | $891 | $36K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 120 | $888 | $107K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 40 | $886 | $35K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 320 | $883 | $283K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 200 | $882 | $176K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 741 | $881 | $653K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 200 | $880 | $176K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 280 | $878 | $246K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 418 | $877 | $367K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 760 | $877 | $666K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 974 | $875 | $853K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 986 | $875 | $862K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 1,040 | $873 | $908K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 1,000 | $872 | $872K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 520 | $872 | $453K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 200 | $870 | $174K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 80 | $869 | $70K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 160 | $868 | $139K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 40 | $866 | $35K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 80 | $865 | $69K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | September 21, 2026 | September 22, 2026 | 1d | 40 | $864 | $35K | 10b5-1 plan | Form 4 ↗ | |
| STX | Option / conversion M | September 21, 2026 | September 22, 2026 | 1d | 915 | $158 | $145K | 10b5-1 plan | Form 4 ↗ | |
| STX | Option / conversion M | September 14, 2026 | September 16, 2026 | 2d | 30,130 | — | — | derivative | Form 4 ↗ | |
| STX | Sell S | September 15, 2026 | September 16, 2026 | 1d | 15,466 | $772 | $11.9M | Form 4 ↗ | ||
| STX | Option / conversion M | September 14, 2026 | September 16, 2026 | 2d | 30,130 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 942 | — | — | derivative | Form 4 ↗ | |
| STX | Sell S | September 14, 2026 | September 15, 2026 | 1d | 493 | $781 | $385K | Form 4 ↗ | ||
| STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 942 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 631 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 500 | — | — | derivative | Form 4 ↗ | |
| STX | Sell S | September 10, 2026 | September 11, 2026 | 1d | 319 | $862 | $275K | Form 4 ↗ | ||
| STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 631 | — | — | Form 4 ↗ | ||
| STX | Sell S | September 10, 2026 | September 11, 2026 | 1d | 253 | $862 | $218K | Form 4 ↗ | ||
| STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 500 | — | — | Form 4 ↗ | ||
| STX | Other A | August 20, 2026 | August 24, 2026 | 4d | 6,152 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| STX | Other A | August 20, 2026 | August 24, 2026 | 4d | 393 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| STX | Other A | August 20, 2026 | August 24, 2026 | 4d | 1,309 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| STX | Other A | August 20, 2026 | August 24, 2026 | 4d | 2,307 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| STX | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 523 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| STX | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 1,221 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| STX | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 4,070 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| STX | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 1,764 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| STX | Sell S | August 20, 2026 | August 24, 2026 | 4d | 523 | $836 | $437K | 10b5-1 plan | Form 4 ↗ | |
| STX | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 523 | $158 | $83K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | August 21, 2026 | August 24, 2026 | 3d | 609 | $849 | $517K | 10b5-1 plan | Form 4 ↗ | |
| STX | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 1,221 | — | — | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | August 21, 2026 | August 24, 2026 | 3d | 2,028 | $849 | $1.7M | 10b5-1 plan | Form 4 ↗ | |
| STX | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 4,070 | — | — | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | August 21, 2026 | August 24, 2026 | 3d | 879 | $849 | $747K | 10b5-1 plan | Form 4 ↗ | |
| STX | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 1,764 | — | — | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | August 3, 2026 | August 4, 2026 | 1d | 168 | $818 | $137K | 10b5-1 plan | Form 4 ↗ | |
| STX | Option / conversion M | June 11, 2026 | June 15, 2026 | 4d | 942 | — | — | 10b5-1 planderivative | Form 4 ↗ | |
| STX | Sell S | June 12, 2026 | June 15, 2026 | 3d | 898 | $880 | $790K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | June 12, 2026 | June 15, 2026 | 3d | 466 | $880 | $410K | 10b5-1 plan | Form 4 ↗ | |
| STX | Option / conversion M | June 11, 2026 | June 15, 2026 | 4d | 942 | — | — | 10b5-1 plan | Form 4 ↗ | |
| STX | Option / conversion M | June 9, 2026 | June 11, 2026 | 2d | 631 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | June 9, 2026 | June 11, 2026 | 2d | 499 | — | — | derivative | Form 4 ↗ | |
| STX | Sell S | June 10, 2026 | June 11, 2026 | 1d | 320 | $822 | $263K | Form 4 ↗ | ||
| STX | Option / conversion M | June 9, 2026 | June 11, 2026 | 2d | 631 | — | — | Form 4 ↗ | ||
| STX | Sell S | June 10, 2026 | June 11, 2026 | 1d | 254 | $822 | $209K | Form 4 ↗ | ||
| STX | Option / conversion M | June 9, 2026 | June 11, 2026 | 2d | 499 | — | — | Form 4 ↗ | ||
| STX | Sell S | May 4, 2026 | May 6, 2026 | 2d | 40 | $748 | $30K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | May 4, 2026 | May 6, 2026 | 2d | 120 | $746 | $89K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | May 4, 2026 | May 6, 2026 | 2d | 80 | $745 | $60K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | May 4, 2026 | May 6, 2026 | 2d | 248 | $743 | $184K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | May 4, 2026 | May 6, 2026 | 2d | 398 | $742 | $296K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | May 4, 2026 | May 6, 2026 | 2d | 615 | $741 | $456K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | May 4, 2026 | May 6, 2026 | 2d | 631 | $740 | $467K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | May 4, 2026 | May 6, 2026 | 2d | 427 | $739 | $315K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | May 4, 2026 | May 6, 2026 | 2d | 800 | $738 | $590K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | May 4, 2026 | May 6, 2026 | 2d | 734 | $737 | $541K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | May 4, 2026 | May 6, 2026 | 2d | 520 | $736 | $383K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | May 4, 2026 | May 6, 2026 | 2d | 613 | $735 | $450K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | May 4, 2026 | May 6, 2026 | 2d | 240 | $734 | $176K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | May 4, 2026 | May 6, 2026 | 2d | 160 | $732 | $117K | 10b5-1 plan | Form 4 ↗ | |
| STX | Sell S | March 13, 2026 | March 16, 2026 | 3d | 112 | $377 | $42K | 10b5-1 plan | Form 4 ↗ | |
| STX | Option / conversion M | March 11, 2026 | March 12, 2026 | 1d | 942 | — | — | derivative | Form 4 ↗ | |
| STX | Sell F | March 11, 2026 | March 12, 2026 | 1d | 430 | $386 | $166K | Form 4 ↗ | ||
| STX | Option / conversion M | March 11, 2026 | March 12, 2026 | 1d | 942 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | March 9, 2026 | March 11, 2026 | 2d | 631 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | March 9, 2026 | March 11, 2026 | 2d | 499 | — | — | derivative | Form 4 ↗ | |
| STX | Sell F | March 9, 2026 | March 11, 2026 | 2d | 288 | $374 | $108K | Form 4 ↗ | ||
| STX | Option / conversion M | March 9, 2026 | March 11, 2026 | 2d | 631 | — | — | Form 4 ↗ | ||
| STX | Sell F | March 9, 2026 | March 11, 2026 | 2d | 228 | $374 | $85K | Form 4 ↗ | ||
| STX | Option / conversion M | March 9, 2026 | March 11, 2026 | 2d | 499 | — | — | Form 4 ↗ | ||
| STX | Sell S | February 24, 2026 | February 25, 2026 | 1d | 240 | $410 | $98K | 10b5-1 plan | Form 4 ↗ | |
| STX | Option / conversion M | February 20, 2026 | February 23, 2026 | 3d | 4,427 | — | — | derivative | Form 4 ↗ | |
| STX | Sell F | February 20, 2026 | February 23, 2026 | 3d | 2,032 | $411 | $835K | Form 4 ↗ | ||
| STX | Option / conversion M | February 20, 2026 | February 23, 2026 | 3d | 4,427 | — | — | Form 4 ↗ | ||
| STX | Sell S | December 15, 2025 | December 16, 2025 | 1d | 113 | $292 | $33K | 10b5-1 plan | Form 4 ↗ | |
| STX | Option / conversion M | December 11, 2025 | December 12, 2025 | 1d | 941 | — | — | derivative | Form 4 ↗ | |
| STX | Sell F | December 11, 2025 | December 12, 2025 | 1d | 430 | $308 | $132K | Form 4 ↗ | ||
| STX | Option / conversion M | December 11, 2025 | December 12, 2025 | 1d | 941 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | December 9, 2025 | December 11, 2025 | 2d | 631 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | December 9, 2025 | December 11, 2025 | 2d | 499 | — | — | derivative | Form 4 ↗ | |
| STX | Sell F | December 9, 2025 | December 11, 2025 | 2d | 288 | $283 | $81K | Form 4 ↗ | ||
| STX | Option / conversion M | December 9, 2025 | December 11, 2025 | 2d | 631 | — | — | Form 4 ↗ | ||
| STX | Sell F | December 9, 2025 | December 11, 2025 | 2d | 228 | $283 | $64K | Form 4 ↗ | ||
| STX | Option / conversion M | December 9, 2025 | December 11, 2025 | 2d | 499 | — | — | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| September 22, 2026 | Form 4 | 0001137789-26-000256 | 28 | published | EDGAR ↗ |
| September 16, 2026 | Form 4 | 0001137789-26-000250 | 3 | published | EDGAR ↗ |
| September 15, 2026 | Form 4 | 0001137789-26-000242 | 3 | published | EDGAR ↗ |
| September 11, 2026 | Form 4 | 0001137789-26-000224 | 6 | published | EDGAR ↗ |
| August 24, 2026 | Form 4 | 0001137789-26-000186 | 16 | published | EDGAR ↗ |
| August 4, 2026 | Form 4 | 0001137789-26-000165 | 1 | published | EDGAR ↗ |
| June 15, 2026 | Form 4 | 0001137789-26-000142 | 4 | published | EDGAR ↗ |
| June 11, 2026 | Form 4 | 0001137789-26-000130 | 6 | published | EDGAR ↗ |
| May 6, 2026 | Form 4 | 0001137789-26-000098 | 14 | published | EDGAR ↗ |
| March 16, 2026 | Form 4 | 0001137789-26-000072 | 1 | published | EDGAR ↗ |
| March 12, 2026 | Form 4 | 0001137789-26-000067 | 3 | published | EDGAR ↗ |
| March 11, 2026 | Form 4 | 0001137789-26-000060 | 6 | published | EDGAR ↗ |
| February 25, 2026 | Form 4 | 0001137789-26-000046 | 1 | published | EDGAR ↗ |
| February 23, 2026 | Form 4 | 0001137789-26-000040 | 3 | published | EDGAR ↗ |
| December 16, 2025 | Form 4 | 0001137789-25-000373 | 1 | published | EDGAR ↗ |
| December 12, 2025 | Form 4 | 0001137789-25-000369 | 3 | published | EDGAR ↗ |
| December 11, 2025 | Form 4 | 0001137789-25-000359 | 6 | published | EDGAR ↗ |
Other insiders at Seagate Technology Holdings plc
- MOSLEY WILLIAM D CEO 408 rows
- Romano Gianluca EVP & CFO 238 rows
- Teh Ban Seng EVP & Chief Commercial Officer 177 rows
- Lee James CI EVP & CLO 60 rows
- Chong Kian Fatt EVP Global Operations 40 rows
- BRUNER JUDY Director 9 rows
- Tilenius Stephanie Director 9 rows
- Conyers Yolanda Lee Director 8 rows
- Adams Mark Director 7 rows
- Arumugavelu Shankar Director 6 rows
Everyone on file, with contracts and lobbying under the company's name: Seagate Technology Holdings plc.
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.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Rule 10b5-1 trading plans The plan must be set up when the insider has no important non-public information.
- Options and derivatives on Form 4 Table I = shares. Table II = options and other derivatives.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 17 | 105 | December 11, 2025 | September 22, 2026 | Form 4 list on EDGAR |
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.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.