Seagate Technology Holdings plc (STX) Insider Trading
Over the last 3 months, STX insiders made 0 open-market buys and 123 sales, a net sale of -$89.7M (SEC Form 4). Over the last 6 months, 968 institutions increased and 915 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
123
Net (3m)
-$89.7M
Insider trades by month Buys Sells
Feb
Mar
Apr
May
Jun
Context3-month price +146.3%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 15, 2026 | MOSLEY WILLIAM Ddirector, officer: CEO | Sell | 1,768 | $880.19 |
| Jun 15, 2026 | Morris John Christopherofficer: EVP & CTO | Sell | 466 | $880.19 |
| Jun 15, 2026 | Morris John Christopherofficer: EVP & CTO | Sell | 898 | $880.19 |
| Jun 15, 2026 | Teh Ban Sengofficer: EVP & Chief Commercial Officer | Sell | 989 | $880.19 |
| Jun 15, 2026 | Chong Kian Fattofficer: EVP Global Operations | Option | 678 | — |
| Jun 15, 2026 | Romano Gianlucaofficer: EVP & CFO | Option | 1,695 | — |
| Jun 15, 2026 | Romano Gianlucaofficer: EVP & CFO | Sell | 903 | $880.19 |
| Jun 15, 2026 | MOSLEY WILLIAM Ddirector, officer: CEO | Option | 3,319 | — |
| Jun 15, 2026 | Morris John Christopherofficer: EVP & CTO | Option | 942 | — |
| Jun 15, 2026 | Teh Ban Sengofficer: EVP & Chief Commercial Officer | Option | 989 | — |
| Jun 11, 2026 | Teh Ban Sengofficer: EVP & Chief Commercial Officer | Sell | 663 | $821.86 |
| Jun 11, 2026 | Morris John Christopherofficer: EVP & CTO | Option | 499 | — |
| Jun 11, 2026 | Morris John Christopherofficer: EVP & CTO | Option | 631 | — |
| Jun 11, 2026 | Morris John Christopherofficer: EVP & CTO | Sell | 320 | $821.65 |
| Jun 11, 2026 | Romano Gianlucaofficer: EVP & CFO | Sell | 827 | $821.77 |
| Jun 11, 2026 | Teh Ban Sengofficer: EVP & Chief Commercial Officer | Option | 599 | — |
| Jun 11, 2026 | Romano Gianlucaofficer: EVP & CFO | Sell | 524 | $821.73 |
| Jun 11, 2026 | Chong Kian Fattofficer: EVP Global Operations | Option | 202 | — |
| Jun 11, 2026 | Chong Kian Fattofficer: EVP Global Operations | Option | 379 | — |
| Jun 11, 2026 | MOSLEY WILLIAM Ddirector, officer: CEO | Sell | 1,318 | $821.75 |
| Jun 11, 2026 | MOSLEY WILLIAM Ddirector, officer: CEO | Option | 2,415 | — |
| Jun 11, 2026 | Romano Gianlucaofficer: EVP & CFO | Option | 959 | — |
| Jun 11, 2026 | Morris John Christopherofficer: EVP & CTO | Sell | 254 | $821.66 |
| Jun 11, 2026 | MOSLEY WILLIAM Ddirector, officer: CEO | Sell | 1,536 | $821.74 |
| Jun 11, 2026 | Romano Gianlucaofficer: EVP & CFO | Option | 1,515 | — |
| Jun 11, 2026 | Teh Ban Sengofficer: EVP & Chief Commercial Officer | Option | 663 | — |
| Jun 11, 2026 | MOSLEY WILLIAM Ddirector, officer: CEO | Option | 2,815 | — |
| Jun 4, 2026 | Arumugavelu Shankardirector | Sell | 1,000 | $927.68 |
| Jun 2, 2026 | BHATT PRATdirector | Sell | 1,000 | $929.88 |
| Jun 2, 2026 | MOSLEY WILLIAM Ddirector, officer: CEO | Sell | 208 | $893.00 |
Source: STX SEC Form 4 filings, latest Jun 15, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their STX positions over the last 6 months (SEC Form 13F).
Increased
968
New positions
539
Reduced
915
Sold out
190
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 28.3M | May 15, 2026 |
| VANGUARD GROUP INC | Reduced | 28.1M | Jan 29, 2026 |
| SANDERS CAPITAL, LLC | Reduced | 17.2M | Feb 13, 2026 |
| BLACKROCK, INC. | Increased | 16.1M | Feb 12, 2026 |
| BLACKROCK, INC. | Reduced | 14.3M | May 13, 2026 |
| SANDERS CAPITAL, LLC | Reduced | 12.9M | May 14, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 11.1M | May 8, 2026 |
| STATE STREET CORP | Increased | 9.4M | Feb 13, 2026 |
| STATE STREET CORP | Reduced | 9.3M | May 15, 2026 |
| FMR LLC | Increased | 8.2M | May 15, 2026 |
| BANK OF AMERICA CORP /DE/ | Increased | 7.6M | Feb 3, 2026 |
| JPMORGAN CHASE & CO | Reduced | 7.0M | Feb 11, 2026 |
| JPMORGAN CHASE & CO | Reduced | 6.7M | May 13, 2026 |
| CAPITAL RESEARCH GLOBAL INVESTORS | Increased | 5.7M | May 13, 2026 |
| DZ BANK AG DEUTSCHE ZENTRAL GENOSSENSCHAFTS BANK, FRANKFURT AM MAIN | Increased | 5.4M | Feb 17, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.