Seagate Technology Holdings plc (STX) Insider Trading
Over the last 3 months, STX insiders made 0 open-market buys and 149 sales, a net sale of -$98.6M (SEC Form 4). Over the last 6 months, 1115 institutions increased and 1122 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
149
Net (3m)
-$98.6M
Insider trades by month Buys Sells
Jul
Aug
Context3-month price -13.7%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 600 | $797.39 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 440 | $791.80 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 40 | $774.84 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 160 | $780.66 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 120 | $784.66 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 8 | $777.05 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 968 | $794.77 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 560 | $789.25 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 80 | $778.50 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 567 | $799.44 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 112 | $776.14 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 480 | $793.66 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 240 | $786.27 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Option | 4,032 | $158.40 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 280 | $782.33 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 593 | $802.67 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 845 | $795.90 |
| Aug 26, 2026 | Lee James CIofficer: EVP & CLO | Sell | 200 | $788.03 |
| Aug 24, 2026 | Teh Ban Sengofficer: EVP & Chief Commercial Officer | Grant | 417 | — |
| Aug 24, 2026 | Morris John Christopherofficer: EVP & CTO | Option | 523 | $158.40 |
| Aug 24, 2026 | Teh Ban Sengofficer: EVP & Chief Commercial Officer | Sell | 560 | $851.71 |
| Aug 24, 2026 | Morris John Christopherofficer: EVP & CTO | Sell | 523 | $835.54 |
| Aug 24, 2026 | Lee James CIofficer: EVP & CLO | Grant | 1,420 | — |
| Aug 24, 2026 | Teh Ban Sengofficer: EVP & Chief Commercial Officer | Sell | 88 | $838.35 |
| Aug 24, 2026 | Romano Gianlucaofficer: EVP & CFO | Sell | 2,705 | $849.35 |
| Aug 24, 2026 | Teh Ban Sengofficer: EVP & Chief Commercial Officer | Option | 6,048 | $158.40 |
| Aug 24, 2026 | Teh Ban Sengofficer: EVP & Chief Commercial Officer | Sell | 228 | $845.15 |
| Aug 24, 2026 | Lee James CIofficer: EVP & CLO | Option | 5,698 | — |
| Aug 24, 2026 | Teh Ban Sengofficer: EVP & Chief Commercial Officer | Sell | 682 | $835.64 |
| Aug 24, 2026 | Teh Ban Sengofficer: EVP & Chief Commercial Officer | Sell | 160 | $854.21 |
Source: STX SEC Form 4 filings, latest Aug 26, 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
1115
New positions
884
Reduced
1122
Sold out
68
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 15.2M | Aug 7, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 14.6M | Aug 13, 2026 |
| BLACKROCK, INC. | Reduced | 14.3M | May 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 14.2M | May 15, 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 | 9.9M | Aug 7, 2026 |
| STATE STREET CORP | Reduced | 9.3M | May 15, 2026 |
| FMR LLC | Increased | 8.2M | May 15, 2026 |
| FMR LLC | Reduced | 8.2M | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 8.0M | Aug 13, 2026 |
| JANE STREET GROUP, LLC | Increased | 7.9M | Aug 14, 2026 |
| Invesco Ltd. | Increased | 7.5M | Aug 14, 2026 |
| JPMORGAN CHASE & CO | Reduced | 6.7M | May 13, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 5.9M | Aug 14, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.