William D Mosley sold $10M of STX
CEO at Seagate Technology Holdings plc. 11,002 shares at an average of $935.60, traded Oct 1, 2026, filed Oct 2, 2026.
Score components
- +25RoleCEO
- +25Trade size$10.3M at market
- 0Share of holdings soldSold 2.9% of holdings
- +8Cluster2 insiders selling within 14 days
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
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 0001137789-26-000262, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Oct 1, 2026 | SOpen-market sale Ordinary Shares10b5-1 | -360 | $929.01 | $334k | 372,750 | 10 d ago |
| Oct 1, 2026 | SOpen-market sale Ordinary Shares10b5-1 | -855 | $930.03 | $795k | 371,895 | 10 d ago |
| Oct 1, 2026 | SOpen-market sale Ordinary Shares10b5-1 | -1,665 | $930.99 | $1.6M | 370,230 | 10 d ago |
| Oct 1, 2026 | SOpen-market sale Ordinary Shares10b5-1 | -1,320 | $932.04 | $1.2M | 368,910 | 10 d ago |
| Oct 1, 2026 | SOpen-market sale Ordinary Shares10b5-1 | -840 | $933.28 | $784k | 368,070 | 10 d ago |
| Oct 1, 2026 | SOpen-market sale Ordinary Shares10b5-1 | -822 | $934.35 | $768k | 367,248 | 10 d ago |
| Oct 1, 2026 | SOpen-market sale Ordinary Shares10b5-1 | -640 | $935.15 | $598k | 366,608 | 10 d ago |
| Oct 1, 2026 | SOpen-market sale Ordinary Shares10b5-1 | -759 | $936.43 | $711k | 365,849 | 10 d ago |
| Oct 1, 2026 | SOpen-market sale Ordinary Shares10b5-1 | -579 | $937.33 | $543k | 365,270 | 10 d ago |
| Oct 1, 2026 | SOpen-market sale Ordinary Shares10b5-1 | -640 | $938.32 | $601k | 364,630 | 10 d ago |
| Oct 1, 2026 | SOpen-market sale Ordinary Shares10b5-1 | -720 | $939.27 | $676k | 363,910 | 10 d ago |
| Oct 1, 2026 | SOpen-market sale Ordinary Shares10b5-1 | -80 | $940.20 | $75k | 363,830 | 10 d ago |
| Oct 1, 2026 | SOpen-market sale Ordinary Shares10b5-1 | -40 | $941.22 | $38k | 363,790 | 10 d ago |
| Oct 1, 2026 | SOpen-market sale Ordinary Shares10b5-1 | -280 | $943.21 | $264k | 363,510 | 10 d ago |
| Oct 1, 2026 | SOpen-market sale Ordinary Shares10b5-1 | -440 | $944.81 | $416k | 363,070 | 10 d ago |
| Oct 1, 2026 | SOpen-market sale Ordinary Shares10b5-1 | -962 | $945.97 | $910k | 362,108 | 10 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% | |
| 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% | |
| 50Moderate | Seagate Technology Holdings plc | William D Mosley CEO | $1.5M 1,870 shares | -1% | |
| 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.