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 276 sells ($2.2B) across 284 Form 4 filings — a net selling position of $1.9B.
Source: SEC EDGAR Form 4
Key Statistics (as of Aug 26, 2026)
Total Form 4 filings
284
SEC EDGAR
Insider filers
26
Insider buys (8)
$343.8M
Insider sells (276)
$2.2B
Insider sentiment
Net sellingNet insider flow of $1.9B in net selling.
Recent STX insider transactions
| Date | Insider | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 26, 2026 | James CI Lee | EVP & CLO | Sale | 9.0K | $794.84 | $7.2M |
| Aug 24, 2026 | Ban Seng Teh | EVP & Chief Commercial Officer | Sale | 9.9K | $852.97 | $8.4M |
| Aug 24, 2026 | Ban Seng Teh | EVP & Chief Commercial Officer | Sale | 6.0K | $842.97 | $5.1M |
| Aug 24, 2026 | John Christopher Morris | EVP & CTO | Sale | 4.0K | $847.57 | $3.4M |
| Aug 24, 2026 | James CI Lee | EVP & CLO | Sale | 3.9K | $849.35 | $3.3M |
| Aug 24, 2026 | Gianluca Romano | EVP & CFO | Sale | 9.1K | $849.35 | $7.7M |
| Aug 24, 2026 | William D Mosley | CEO | Sale | 18.1K | $849.35 | $15.4M |
| Aug 14, 2026 | Ban Seng Teh | EVP & Chief Commercial Officer | Sale | 7.4K | $920.80 | $6.8M |
| Aug 11, 2026 | Gianluca Romano | EVP & CFO | Sale | 880 | $845.12 | $743.7K |
| Aug 11, 2026 | Gianluca Romano | EVP & CFO | Sale | 14.1K | $811.25 | $11.4M |
| Aug 11, 2026 | Gianluca Romano | EVP & CFO | Sale | 7.2K | $781.64 | $5.7M |
| Aug 4, 2026 | John Christopher Morris | EVP & CTO | Sale | 168 | $817.76 | $137.4K |
| Aug 4, 2026 | William D Mosley | CEO | Sale | 17.1K | $827.30 | $14.1M |
| Aug 4, 2026 | William D Mosley | CEO | Sale | 12.9K | $803.47 | $10.4M |
| Aug 3, 2026 | James CI Lee | EVP & CLO | Sale | 694 | $877.45 | $609.0K |
| Jul 24, 2026 | James CI Lee | EVP & CLO | Sale | 542.25 | $905.01 | $490.7K |
| 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 |
Showing the 25 most recent of 284 Form 4 filings for Seagate Technology Holdings plc.
Most active STX insiders
- Stephen J Luczo51 filings
- Ban Seng Teh41 filings
- William D Mosley41 filings
- Gianluca Romano22 filings
- John Christopher Morris20 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 284 SEC Form 4 filings, Seagate Technology Holdings plc (STX) insiders reported 8 open-market purchases totaling $343.8M and 276 sales totaling $2.2B. That is a net selling position of $1.9B.
How many insiders trade STX stock?
26 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 Aug 26, 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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