William D Mosley sold $1.5M of STX
CEO at Seagate Technology Holdings plc. 1,870 shares at an average of $781.23, traded Sep 14, 2026, filed Sep 15, 2026.
Score components
- +25RoleCEO
- +25Trade size$1.5M at market
- 0Share of holdings soldSold 0.6% of holdings
- +15Cluster5 insiders selling within 14 days
- -15Exercise and sellShares came from an option exercise in the same filing
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001137789-26-000239, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 11, 2026 | MOption exercise Ordinary Shares | +3,319 | $0.00 | $0 | 300,867 | 26 d ago |
| Sep 14, 2026 | SOpen-market sale Ordinary Shares | -1,870 | $781.23 | $1.5M | 298,998 | 26 d ago |
| Sep 11, 2026 | MOption exercise Restricted Share Unitderivative | -3,319 | $0.00 | $0 | 13,276 | 26 d ago |
Related signals
Other insiders at Seagate Technology Holdings plc and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 23Weak | Seagate Technology Holdings plc | William D Mosley CEO | $17M 18,998 shares | -5% | |
| 38Weak | Seagate Technology Holdings plc | William D Mosley CEO | $10M 11,002 shares | -3% | |
| 30Weak | Seagate Technology Holdings plc | John Christopher Morris EVP & CTO | $8.2M 9,354 shares | -29% | |
| 55Moderate | Seagate Technology Holdings plc | William D Mosley CEO | $76M 97,889 shares | -21% | |
| 50Moderate | Seagate Technology Holdings plc | John Christopher Morris EVP & CTO | $12M 15,466 shares | -33% | |
| 57Moderate | Seagate Technology Holdings plc | Gianluca Romano EVP & CFO | $39M 49,984 shares | -41% | |
| 40Moderate | Seagate Technology Holdings plc | Ban Seng Teh EVP & Chief Commercial Officer | $41M 52,730 shares | -90% | |
| 31Weak | Seagate Technology Holdings plc | John Christopher Morris EVP & CTO | $385k 493 shares | -3% | |
| 47Moderate | Seagate Technology Holdings plc | Gianluca Romano EVP & CFO | $38M 45,898 shares | -57% | |
| 32Weak | Seagate Technology Holdings plc | Gianluca Romano EVP & CFO | $4.7M 5,555 shares | -16% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.