STX.NASDAQSeagate Technology Holdings PLC
Form 4: Seagate Technology Holdings CEO Sells Shares
Sentiment:
Insider Transaction (Form 4)
William D Mosley, CEO and a Director of Seagate Technology Holdings plc, sold 18,998 shares of common stock on October 1, 2026.
Summary
- Option exercise/conversion: acquired 14,000 Ordinary Shares at $46.23 ($647,220) on October 1, 2026; holds 392,108 after (Direct).
- Open-market sale: disposed of 360 Ordinary Shares at $898.10 ($323,314) on October 1, 2026; holds 391,748 after (Direct).
- Open-market sale: disposed of 517 Ordinary Shares at $900.46 ($465,539) on October 1, 2026; holds 391,231 after (Direct).
- Open-market sale: disposed of 440 Ordinary Shares at $901.49 ($396,655) on October 1, 2026; holds 390,791 after (Direct).
- Open-market sale: disposed of 384 Ordinary Shares at $902.55 ($346,579) on October 1, 2026; holds 390,407 after (Direct).
- Open-market sale: disposed of 696 Ordinary Shares at $903.36 ($628,741) on October 1, 2026; holds 389,711 after (Direct).
- Open-market sale: disposed of 480 Ordinary Shares at $904.33 ($434,080) on October 1, 2026; holds 389,231 after (Direct).
- Open-market sale: disposed of 480 Ordinary Shares at $905.38 ($434,583) on October 1, 2026; holds 388,751 after (Direct).
- Open-market sale: disposed of 601 Ordinary Shares at $906.42 ($544,760) on October 1, 2026; holds 388,150 after (Direct).
- Open-market sale: disposed of 560 Ordinary Shares at $907.43 ($508,162) on October 1, 2026; holds 387,590 after (Direct).
- Open-market sale: disposed of 1,027 Ordinary Shares at $908.58 ($933,110) on October 1, 2026; holds 386,563 after (Direct).
- Open-market sale: disposed of 307 Ordinary Shares at $909.84 ($279,322) on October 1, 2026; holds 386,256 after (Direct).
- Open-market sale: disposed of 840 Ordinary Shares at $910.69 ($764,982) on October 1, 2026; holds 385,416 after (Direct).
- Open-market sale: disposed of 1,146 Ordinary Shares at $912.04 ($1,045,202) on October 1, 2026; holds 384,270 after (Direct).
- Open-market sale: disposed of 696 Ordinary Shares at $913.08 ($635,503) on October 1, 2026; holds 383,574 after (Direct).
- Open-market sale: disposed of 904 Ordinary Shares at $913.94 ($826,203) on October 1, 2026; holds 382,670 after (Direct).
- Open-market sale: disposed of 960 Ordinary Shares at $915.01 ($878,408) on October 1, 2026; holds 381,710 after (Direct).
- Open-market sale: disposed of 480 Ordinary Shares at $916.10 ($439,726) on October 1, 2026; holds 381,230 after (Direct).
- Open-market sale: disposed of 400 Ordinary Shares at $917.22 ($366,889) on October 1, 2026; holds 380,830 after (Direct).
- Open-market sale: disposed of 920 Ordinary Shares at $918.49 ($845,013) on October 1, 2026; holds 379,910 after (Direct).
- Open-market sale: disposed of 840 Ordinary Shares at $919.56 ($772,428) on October 1, 2026; holds 379,070 after (Direct).
- Open-market sale: disposed of 630 Ordinary Shares at $920.62 ($579,988) on October 1, 2026; holds 378,440 after (Direct).
- Open-market sale: disposed of 930 Ordinary Shares at $921.63 ($857,121) on October 1, 2026; holds 377,510 after (Direct).
- Open-market sale: disposed of 800 Ordinary Shares at $922.66 ($738,126) on October 1, 2026; holds 376,710 after (Direct).
- Open-market sale: disposed of 760 Ordinary Shares at $923.78 ($702,074) on October 1, 2026; holds 375,950 after (Direct).
- Open-market sale: disposed of 640 Ordinary Shares at $924.72 ($591,821) on October 1, 2026; holds 375,310 after (Direct).
- Open-market sale: disposed of 1,080 Ordinary Shares at $925.88 ($999,953) on October 1, 2026; holds 374,230 after (Direct).
- Open-market sale: disposed of 480 Ordinary Shares at $926.78 ($444,852) on October 1, 2026; holds 373,750 after (Direct).
- Open-market sale: disposed of 640 Ordinary Shares at $927.90 ($593,854) on October 1, 2026; holds 373,110 after (Direct).
- Option exercise/conversion: disposed of 14,000 NQ Options on October 1, 2026; holds 83,100 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $17,376,988 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
William D Mosley — Director, Officer (CEO)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-10-01 | Option exercise/conversion | Ordinary Shares | 14,000 | $46 | $647.2K | 392,108.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 360 | $898 | $323.3K | 391,748.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 517 | $900 | $465.5K | 391,231.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 440 | $901 | $396.7K | 390,791.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 384 | $903 | $346.6K | 390,407.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 696 | $903 | $628.7K | 389,711.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 480 | $904 | $434.1K | 389,231.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 480 | $905 | $434.6K | 388,751.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 601 | $906 | $544.8K | 388,150.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 560 | $907 | $508.2K | 387,590.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 1,027 | $909 | $933.1K | 386,563.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 307 | $910 | $279.3K | 386,256.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 840 | $911 | $765.0K | 385,416.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 1,146 | $912 | $1.0M | 384,270.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 696 | $913 | $635.5K | 383,574.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 904 | $914 | $826.2K | 382,670.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 960 | $915 | $878.4K | 381,710.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 480 | $916 | $439.7K | 381,230.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 400 | $917 | $366.9K | 380,830.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 920 | $918 | $845.0K | 379,910.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 840 | $920 | $772.4K | 379,070.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 630 | $921 | $580.0K | 378,440.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 930 | $922 | $857.1K | 377,510.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 800 | $923 | $738.1K | 376,710.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 760 | $924 | $702.1K | 375,950.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 640 | $925 | $591.8K | 375,310.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 1,080 | $926 | $1000.0K | 374,230.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 480 | $927 | $444.9K | 373,750.25 |
| 2026-10-01 | Open-market sale | Ordinary Shares | 640 | $928 | $593.9K | 373,110.25 |
| 2026-10-01 | Option exercise/conversion | NQ Options | 14,000 | — | — | 83,100 |
Key Dates
| Date | Description |
|---|---|
| 2026-10-01 | Option exercise/conversion (14,000 shares) |
| 2026-10-01 | Open-market sale (360 shares) |
| 2026-10-01 | Open-market sale (517 shares) |
| 2026-10-01 | Open-market sale (440 shares) |
| 2026-10-01 | Open-market sale (384 shares) |
| 2026-10-01 | Open-market sale (696 shares) |
| 2026-10-01 | Open-market sale (480 shares) |
| 2026-10-01 | Open-market sale (480 shares) |
| 2026-10-01 | Open-market sale (601 shares) |
| 2026-10-01 | Open-market sale (560 shares) |
| 2026-10-01 | Open-market sale (1,027 shares) |
| 2026-10-01 | Open-market sale (307 shares) |
| 2026-10-01 | Open-market sale (840 shares) |
| 2026-10-01 | Open-market sale (1,146 shares) |
| 2026-10-01 | Open-market sale (696 shares) |
| 2026-10-01 | Open-market sale (904 shares) |
| 2026-10-01 | Open-market sale (960 shares) |
| 2026-10-01 | Open-market sale (480 shares) |
| 2026-10-01 | Open-market sale (400 shares) |
| 2026-10-01 | Open-market sale (920 shares) |
| 2026-10-01 | Open-market sale (840 shares) |
| 2026-10-01 | Open-market sale (630 shares) |
| 2026-10-01 | Open-market sale (930 shares) |
| 2026-10-01 | Open-market sale (800 shares) |
| 2026-10-01 | Open-market sale (760 shares) |
| 2026-10-01 | Open-market sale (640 shares) |
| 2026-10-01 | Open-market sale (1,080 shares) |
| 2026-10-01 | Open-market sale (480 shares) |
| 2026-10-01 | Open-market sale (640 shares) |
| 2026-10-01 | Option exercise/conversion (14,000 shares) |
Keywords
insider transaction, Form 4, STX, Seagate Technology Holdings plc, bearish, William D Mosley
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