Insider · CIK 0001388390
William D Mosley
ceoofficerdirector
Files at STX (Seagate Technology Holdings plc). First filing Nov 4, 2024, latest Oct 2, 2026.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 8
$0 bought, $136M sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
STX: Seagate Technology Holdings plc
STXOct 9, 2026 · close 783.00
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 23Weak | Seagate Technology Holdings plc | $17M 18,998 shares | -5% | +349% from low-13% from high | |
| 38Weak | Seagate Technology Holdings plc | $10M 11,002 shares | -3% | +349% from low-13% from high | |
| 55Moderate | Seagate Technology Holdings plc | $76M 97,889 shares | -21% | +269% from low-29% from high | |
| 50Moderate | Seagate Technology Holdings plc | $1.5M 1,870 shares | -1% | +285% from low-26% from high | |
| 50Moderate | Seagate Technology Holdings plc | $2.5M 2,849 shares | -1% | +350% from low-21% from high | |
| 30Weak | Seagate Technology Holdings plc | $24M 30,000 shares | -9% | +383% from low-25% from high | |
| 45Moderate | Seagate Technology Holdings plc | $2.1M 20,000 shares | -3% | - | |
| 45Moderate | Seagate Technology Holdings plc | $2.0M 20,000 shares | -3% | - |
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Oct 1, 2026 | STX Seagate Technology Holdings plc | MOption exercise Ordinary Shares10b5-1 | +14,000 | $46.23 | $647k | 392,108 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -360 | $929.01 | $334k | 372,750 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -360 | $898.10 | $323k | 391,748 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -855 | $930.03 | $795k | 371,895 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -517 | $900.46 | $466k | 391,231 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -1,665 | $930.99 | $1.6M | 370,230 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -440 | $901.49 | $397k | 390,791 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -1,320 | $932.04 | $1.2M | 368,910 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -384 | $902.55 | $347k | 390,407 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -840 | $933.28 | $784k | 368,070 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -696 | $903.36 | $629k | 389,711 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -822 | $934.35 | $768k | 367,248 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -480 | $904.33 | $434k | 389,231 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -640 | $935.15 | $598k | 366,608 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -759 | $936.43 | $711k | 365,849 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -480 | $905.38 | $435k | 388,751 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -579 | $937.33 | $543k | 365,270 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -601 | $906.42 | $545k | 388,150 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -640 | $938.32 | $601k | 364,630 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -560 | $907.43 | $508k | 387,590 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -720 | $939.27 | $676k | 363,910 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -1,027 | $908.58 | $933k | 386,563 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -80 | $940.20 | $75k | 363,830 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -307 | $909.84 | $279k | 386,256 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -840 | $910.69 | $765k | 385,416 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -40 | $941.22 | $38k | 363,790 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -1,146 | $912.04 | $1.0M | 384,270 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -280 | $943.21 | $264k | 363,510 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -440 | $944.81 | $416k | 363,070 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -696 | $913.08 | $636k | 383,574 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -962 | $945.97 | $910k | 362,108 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -904 | $913.94 | $826k | 382,670 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -960 | $915.01 | $878k | 381,710 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -480 | $916.10 | $440k | 381,230 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -400 | $917.22 | $367k | 380,830 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -920 | $918.49 | $845k | 379,910 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -840 | $919.56 | $772k | 379,070 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -630 | $920.62 | $580k | 378,440 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -930 | $921.64 | $857k | 377,510 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -800 | $922.66 | $738k | 376,710 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -760 | $923.78 | $702k | 375,950 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -640 | $924.72 | $592k | 375,310 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -1,080 | $925.88 | $1000k | 374,230 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -480 | $926.78 | $445k | 373,750 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -640 | $927.90 | $594k | 373,110 | 10 d ago |
| Oct 1, 2026 | STX Seagate Technology Holdings plc | MOption exercise NQ Optionsderivative10b5-1 | -14,000 | $0.00 | $0 | 83,100 | 10 d ago |
| Sep 14, 2026 | STX Seagate Technology Holdings plc | MOption exercise Ordinary Shares | +177,000 | $0.00 | $0 | 475,998 | 26 d ago |
| Sep 15, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares | -97,889 | $772.14 | $76M | 378,108 | 26 d ago |
| Sep 14, 2026 | STX Seagate Technology Holdings plc | MOption exercise Performance-Based Restricted Share Unitsderivative | -177,000 | $0.00 | $0 | 0 | 26 d ago |
| Sep 11, 2026 | STX Seagate Technology Holdings plc | MOption exercise Ordinary Shares | +3,319 | $0.00 | $0 | 300,867 | 27 d ago |
| Sep 14, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares | -1,870 | $781.23 | $1.5M | 298,998 | 27 d ago |
| Sep 11, 2026 | STX Seagate Technology Holdings plc | MOption exercise Restricted Share Unitderivative | -3,319 | $0.00 | $0 | 13,276 | 27 d ago |
| Sep 9, 2026 | STX Seagate Technology Holdings plc | MOption exercise Ordinary Shares | +2,815 | $0.00 | $0 | 297,983 | 31 d ago |
| Sep 10, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares | -1,534 | $862.13 | $1.3M | 296,449 | 31 d ago |
| Sep 9, 2026 | STX Seagate Technology Holdings plc | MOption exercise Ordinary Shares | +2,415 | $0.00 | $0 | 298,864 | 31 d ago |
| Sep 10, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares | -1,316 | $862.14 | $1.1M | 297,548 | 31 d ago |
| Sep 9, 2026 | STX Seagate Technology Holdings plc | MOption exercise Restricted Share Unitderivative | -2,815 | $0.00 | $0 | 0 | 31 d ago |
| Sep 9, 2026 | STX Seagate Technology Holdings plc | MOption exercise Restricted Share Unitderivative | -2,415 | $0.00 | $0 | 19,328 | 31 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | MOption exercise Ordinary Shares10b5-1 | +14,000 | $46.23 | $647k | 325,168 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -357 | $804.61 | $287k | 324,811 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -160 | $805.55 | $129k | 324,651 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -160 | $807.19 | $129k | 324,491 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -960 | $808.62 | $776k | 323,531 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -1,160 | $809.55 | $939k | 322,371 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -1,105 | $810.78 | $896k | 321,266 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -1,578 | $811.73 | $1.3M | 319,688 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -1,200 | $812.55 | $975k | 318,488 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -2,040 | $813.74 | $1.7M | 316,448 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -2,878 | $814.75 | $2.3M | 313,570 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -4,555 | $815.75 | $3.7M | 309,015 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -4,287 | $816.75 | $3.5M | 304,728 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -2,080 | $817.71 | $1.7M | 302,648 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -1,040 | $818.78 | $852k | 301,608 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -1,320 | $819.84 | $1.1M | 300,288 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -920 | $820.89 | $755k | 299,368 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -480 | $822.05 | $395k | 298,888 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -600 | $822.89 | $494k | 298,288 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -1,240 | $824.05 | $1.0M | 297,048 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -600 | $824.93 | $495k | 296,448 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -580 | $826.00 | $479k | 295,868 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -340 | $826.86 | $281k | 295,528 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -120 | $827.90 | $99k | 295,408 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -80 | $829.10 | $66k | 295,328 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -80 | $830.36 | $66k | 295,248 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -80 | $832.05 | $67k | 295,168 | 39 d ago |
| Sep 1, 2026 | STX Seagate Technology Holdings plc | MOption exercise NQ Optionsderivative10b5-1 | -14,000 | $0.00 | $0 | 97,100 | 39 d ago |
| Dec 11, 2024 | STX Seagate Technology Holdings plc | MOption exercise Ordinary Shares | +3,318 | $0.00 | $0 | 627,207 | Dec 13, 2024 |
| Dec 11, 2024 | STX Seagate Technology Holdings plc | FTax withholding Ordinary Shares | -1,677 | $98.39 | $165k | 625,530 | Dec 13, 2024 |
| Dec 11, 2024 | STX Seagate Technology Holdings plc | MOption exercise Restricted Share Unitderivative | -3,318 | $0.00 | $0 | 36,507 | Dec 13, 2024 |
| Dec 9, 2024 | STX Seagate Technology Holdings plc | MOption exercise Ordinary Shares | +2,814 | $0.00 | $0 | 625,311 | Dec 11, 2024 |
| Dec 9, 2024 | STX Seagate Technology Holdings plc | FTax withholding Ordinary Shares | -1,422 | $98.97 | $141k | 623,889 | Dec 11, 2024 |
| Dec 9, 2024 | STX Seagate Technology Holdings plc | MOption exercise Restricted Share Unitderivative | -2,814 | $0.00 | $0 | 19,703 | Dec 11, 2024 |
| Dec 2, 2024 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -1,300 | $101.91 | $132k | 641,197 | Dec 4, 2024 |
| Dec 2, 2024 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -12,852 | $103.13 | $1.3M | 628,345 | Dec 4, 2024 |
| Dec 2, 2024 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -4,806 | $101.83 | $489k | 623,539 | Dec 4, 2024 |
| Dec 2, 2024 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -1,042 | $104.88 | $109k | 622,497 | Dec 4, 2024 |
| Nov 1, 2024 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -13,100 | $99.16 | $1.3M | 649,397 | Nov 4, 2024 |
| Nov 1, 2024 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -6,800 | $100.23 | $682k | 642,597 | Nov 4, 2024 |
| Nov 1, 2024 | STX Seagate Technology Holdings plc | SOpen-market sale Ordinary Shares10b5-1 | -100 | $100.93 | $10k | 642,497 | Nov 4, 2024 |
| Oct 19, 2024 | STX Seagate Technology Holdings plc | MOption exercise Ordinary Shares | +28,060 | $0.00 | $0 | 676,676 | Oct 22, 2024 |
| Oct 19, 2024 | STX Seagate Technology Holdings plc | FTax withholding Ordinary Shares | -14,179 | $112.12 | $1.6M | 662,497 | Oct 22, 2024 |
| Oct 19, 2024 | STX Seagate Technology Holdings plc | AGrant or award Performance-Based Restricted Share Unitsderivative | +28,060 | $0.00 | $0 | 28,060 | Oct 22, 2024 |
| Oct 19, 2024 | STX Seagate Technology Holdings plc | MOption exercise Performance-Based Restricted Share Unitsderivative | -28,060 | $0.00 | $0 | 0 | Oct 22, 2024 |
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.