STXTechnologyLarge-Cap
Seagate Technology Holdings plc Insider Trading Activity
Every SEC Form 4 insider transaction reported for Seagate Technology Holdings plc (STX), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud Research Team · SEC Form 4 & insider trading data analysts
Last updated:
Quick Answer
Are STX insiders buying or selling?
Seagate Technology Holdings plc insiders reported 8 open-market buys ($343.8M) and 248 sells ($2.1B) across 256 Form 4 filings — a net selling position of $1.7B.
Source: SEC EDGAR Form 4
Key Statistics (as of Jul 2, 2026)
Total Form 4 filings
256
SEC EDGAR
Insider filers
23
Insider buys (8)
$343.8M
Insider sells (248)
$2.1B
Insider sentiment
Net sellingNet insider flow of $1.7B in net selling.
Recent STX insider transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 2, 2026 | William D Mosley | CEO | Sale | 9.3K | $924.42 | $8.6M |
| Jul 2, 2026 | William D Mosley | CEO | Sale | 20.7K | $910.48 | $18.8M |
| Jun 15, 2026 | John Christopher Morris | EVP & CTO | Sale | 1.4K | $880.19 | $1.2M |
| Jun 15, 2026 | Ban Seng Teh | EVP & Chief Commercial Officer | Sale | 989 | $880.19 | $870.5K |
| Jun 15, 2026 | Gianluca Romano | EVP & CFO | Sale | 903.25 | $880.19 | $795.0K |
| Jun 15, 2026 | William D Mosley | CEO | Sale | 1.8K | $880.19 | $1.6M |
| Jun 11, 2026 | Ban Seng Teh | EVP & Chief Commercial Officer | Sale | 663 | $821.86 | $544.9K |
| Jun 11, 2026 | John Christopher Morris | EVP & CTO | Sale | 573.75 | $821.66 | $471.4K |
| Jun 11, 2026 | William D Mosley | CEO | Sale | 2.9K | $821.74 | $2.3M |
| Jun 11, 2026 | Gianluca Romano | EVP & CFO | Sale | 1.4K | $821.76 | $1.1M |
| Jun 4, 2026 | Shankar Arumugavelu | Director | Sale | 1.0K | $927.68 | $927.7K |
| Jun 2, 2026 | Prat Bhatt | Director | Sale | 1.0K | $929.88 | $929.9K |
| Jun 2, 2026 | Yolanda Lee Conyers | Director | Sale | 750 | $885.33 | $664.0K |
| Jun 2, 2026 | William D Mosley | CEO | Sale | 13.8K | $924.99 | $12.7M |
| Jun 2, 2026 | William D Mosley | CEO | Sale | 16.2K | $900.21 | $14.6M |
| May 21, 2026 | William D Mosley | CEO | Sale | 30.0K | $751.29 | $22.5M |
| May 14, 2026 | Ban Seng Teh | EVP & Chief Commercial Officer | Sale | 15.6K | $815.42 | $12.7M |
| May 8, 2026 | Gianluca Romano | EVP & CFO | Sale | 1.9K | $770.00 | $1.5M |
| May 8, 2026 | Gianluca Romano | EVP & CFO | Sale | 22.5K | $774.22 | $17.4M |
| May 6, 2026 | Stephanie Tilenius | Director | Sale | 1.6K | $766.61 | $1.2M |
| May 6, 2026 | John Christopher Morris | EVP & CTO | Sale | 5.6K | $738.37 | $4.2M |
| May 6, 2026 | James CI Lee | EVP & CLO | Sale | 697 | $741.17 | $516.6K |
| Apr 2, 2026 | William D Mosley | CEO | Sale | 20.0K | $420.73 | $8.4M |
| Mar 23, 2026 | William D Mosley | CEO | Sale | 24.6K | $406.77 | $10.0M |
| Mar 16, 2026 | John Christopher Morris | EVP & CTO | Sale | 112 | $377.44 | $42.3K |
Showing the 25 most recent of 256 Form 4 filings for Seagate Technology Holdings plc.
Most active STX insiders
- Stephen J Luczo47 filings
- Ban Seng Teh38 filings
- William D Mosley38 filings
- Gianluca Romano18 filings
- John Christopher Morris18 filings
Ask anything about STX insider activity
Use Trabud's AI agent to query Seagate Technology Holdings plc's Form 4 history in plain English — "Show me STX CEO purchases this year" or compare it against any other ticker.
Open the AI agentSTX insider trading FAQ
Are Seagate Technology Holdings plc insiders buying or selling?
Across 256 SEC Form 4 filings, Seagate Technology Holdings plc (STX) insiders reported 8 open-market purchases totaling $343.8M and 248 sales totaling $2.1B. That is a net selling position of $1.7B.
How many insiders trade STX stock?
23 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for Seagate Technology Holdings plc. The most recent filing was accepted on Jul 2, 2026.
Where does Trabud get STX insider trading data?
All STX insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.
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