Transactions
40
Insider / Seagate Technology Holdings plc
Chong Kian Fatt
EVP Global Operations at Seagate Technology Holdings plc
- Ticker
- STX
- First filing on record
- November 3, 2025
- Latest trade on record
- September 14, 2026
- SEC filings
- EDGAR ↗
Chong Kian Fatt, EVP Global Operations at Seagate Technology Holdings plc, has disclosed 40 transactions in STX since November 3, 2025: 0 purchases (0 open-market buys) and 2 sales, worth about $4.4M at the reported prices. The latest was filed September 16, 2026, 2 days after the trade.
Open-market buys
0
Sales
2
Avg. disclosure lag
2.6d
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 Chong Kian Fatt made no purchases and 2 sales worth $4.4M, plus 38 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.
Chong Kian Fatt 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 12 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 |
|---|---|---|---|---|
| M | Option exercise or conversion | 34 | 61,556 | — |
| A | Grant or award | 4 | 6,555 | — |
| S | Open-market sale | 2 | 12,924 | $4.4M |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 33 | 0 | 1 · $2.4M |
| 2025 | 7 | 0 | 1 · $1.9M |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| STX | Option / conversion M | September 14, 2026 | September 16, 2026 | 2d | 14,470 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | September 14, 2026 | September 16, 2026 | 2d | 14,470 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 678 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | September 11, 2026 | September 15, 2026 | 4d | 678 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 379 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 202 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 379 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | September 9, 2026 | September 11, 2026 | 2d | 202 | — | — | Form 4 ↗ | ||
| STX | Other A | August 20, 2026 | August 24, 2026 | 4d | 3,788 | — | — | derivative | Form 4 ↗ | |
| STX | Other A | August 20, 2026 | August 24, 2026 | 4d | 311 | — | — | derivative | Form 4 ↗ | |
| STX | Other A | August 20, 2026 | August 24, 2026 | 4d | 1,036 | — | — | derivative | Form 4 ↗ | |
| STX | Other A | August 20, 2026 | August 24, 2026 | 4d | 1,420 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 1,278 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 4,258 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 1,310 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 1,278 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 4,258 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | August 20, 2026 | August 24, 2026 | 4d | 1,310 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | June 11, 2026 | June 15, 2026 | 4d | 678 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | June 11, 2026 | June 15, 2026 | 4d | 678 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | June 9, 2026 | June 11, 2026 | 2d | 379 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | June 9, 2026 | June 11, 2026 | 2d | 202 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | June 9, 2026 | June 11, 2026 | 2d | 379 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | June 9, 2026 | June 11, 2026 | 2d | 202 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | March 11, 2026 | March 12, 2026 | 1d | 678 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | March 11, 2026 | March 12, 2026 | 1d | 678 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | March 9, 2026 | March 11, 2026 | 2d | 379 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | March 9, 2026 | March 11, 2026 | 2d | 202 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | March 9, 2026 | March 11, 2026 | 2d | 379 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | March 9, 2026 | March 11, 2026 | 2d | 202 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | February 20, 2026 | February 23, 2026 | 3d | 4,427 | — | — | derivative | Form 4 ↗ | |
| STX | Sell S | February 23, 2026 | February 23, 2026 | 0d | 5,846 | $416 | $2.4M | Form 4 ↗ | ||
| STX | Option / conversion M | February 20, 2026 | February 23, 2026 | 3d | 4,427 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | December 11, 2025 | December 12, 2025 | 1d | 678 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | December 11, 2025 | December 12, 2025 | 1d | 678 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | December 9, 2025 | December 11, 2025 | 2d | 379 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | December 9, 2025 | December 11, 2025 | 2d | 201 | — | — | derivative | Form 4 ↗ | |
| STX | Option / conversion M | December 9, 2025 | December 11, 2025 | 2d | 379 | — | — | Form 4 ↗ | ||
| STX | Option / conversion M | December 9, 2025 | December 11, 2025 | 2d | 201 | — | — | Form 4 ↗ | ||
| STX | Sell S | October 30, 2025 | November 3, 2025 | 4d | 7,078 | $272 | $1.9M | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| September 16, 2026 | Form 4 | 0001137789-26-000253 | 2 | published | EDGAR ↗ |
| September 15, 2026 | Form 4 | 0001137789-26-000243 | 2 | published | EDGAR ↗ |
| September 11, 2026 | Form 4 | 0001137789-26-000226 | 4 | published | EDGAR ↗ |
| August 24, 2026 | Form 4 | 0001137789-26-000184 | 10 | published | EDGAR ↗ |
| June 15, 2026 | Form 4 | 0001137789-26-000140 | 2 | published | EDGAR ↗ |
| June 11, 2026 | Form 4 | 0001137789-26-000132 | 4 | published | EDGAR ↗ |
| March 12, 2026 | Form 4 | 0001137789-26-000068 | 2 | published | EDGAR ↗ |
| March 11, 2026 | Form 4 | 0001137789-26-000057 | 4 | published | EDGAR ↗ |
| February 23, 2026 | Form 4 | 0001137789-26-000042 | 3 | published | EDGAR ↗ |
| December 12, 2025 | Form 4 | 0001137789-25-000370 | 2 | published | EDGAR ↗ |
| December 11, 2025 | Form 4 | 0001137789-25-000360 | 4 | published | EDGAR ↗ |
| November 3, 2025 | Form 4 | 0001137789-25-000321 | 1 | 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
- Morris John Christopher EVP & CTO 105 rows
- Lee James CI EVP & CLO 60 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.
- Options and derivatives on Form 4 Table I = shares. Table II = options and other derivatives.
- 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 |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 12 | 40 | November 3, 2025 | September 16, 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.