William D. Mosley serves as Executive at SEAGATE TECHNOLOGY, where they oversee executive responsibilities. Since joining the company, William D. Mosley has executed 299 insider transactions totaling $146.7M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 11, 2025 involved exercising options for 3,319 shares valued at $0.
William D. Mosley currently holds 451,573 shares of SEAGATE TECHNOLOGY (STX), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, William D. Mosley has been a net seller of STX stock. They have purchased $0 and sold $146.7M worth of shares.
William D. Mosley's most recent insider trade was on Dec 11, 2025, when they sold 3,319 shares at $0.00 per share.
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| $307.85 |
| Discretionary |
| Dec 9, 2025 | STX | $0 | Option Exercise | 2,815 | $N/A | Discretionary |
| Dec 9, 2025 | STX | $345.4K | Payment | 1,221 | $282.86 | Discretionary |
| Dec 9, 2025 | STX | $0 | Option Exercise | 2,415 | $N/A | Discretionary |
| Dec 9, 2025 | STX | $402.5K | Payment | 1,423 | $282.86 | Discretionary |
| Dec 1, 2025 | STX | $1.6M | Sale | 5,718 | $271.19 | Discretionary |
| Dec 1, 2025 | STX | $292.1K | Sale | 1,093 | $267.27 | Discretionary |
| Dec 1, 2025 | STX | $109.3K | Sale | 407 | $268.58 | Discretionary |
| Dec 1, 2025 | STX | $175.1K | Sale | 650 | $269.43 | Discretionary |
| Dec 1, 2025 | STX | $27.5K | Sale | 100 | $274.89 | Discretionary |
| Dec 1, 2025 | STX | $218.4K | Sale | 800 | $273.04 | Discretionary |
| Dec 1, 2025 | STX | $1.6M | Sale | 5,894 | $272.24 | Discretionary |
| Dec 1, 2025 | STX | $1.4M | Sale | 5,338 | $270.29 | Discretionary |
| Nov 3, 2025 | STX | $157.3K | Sale | 600 | $262.21 | Discretionary |
| Nov 3, 2025 | STX | $80.6K | Sale | 300 | $268.65 | Discretionary |
| Nov 3, 2025 | STX | $381.7K | Sale | 1,500 | $254.44 | Discretionary |
| Nov 3, 2025 | STX | $507.6K | Sale | 1,901 | $267.04 | Discretionary |
| Nov 3, 2025 | STX | $1.5M | Sale | 5,506 | $266.25 | Discretionary |
| Nov 3, 2025 | STX | $1.1M | Sale | 4,194 | $265.44 | Discretionary |
| Nov 3, 2025 | STX | $105.4K | Sale | 400 | $263.58 | Discretionary |
| Nov 3, 2025 | STX | $104.6K | Sale | 400 | $261.58 | Discretionary |
| Nov 3, 2025 | STX | $155.9K | Sale | 599 | $260.32 | Discretionary |
| Nov 3, 2025 | STX | $259.0K | Sale | 1,000 | $258.96 | Discretionary |
| Nov 3, 2025 | STX | $309.7K | Sale | 1,200 | $258.08 | Discretionary |
| Nov 3, 2025 | STX | $257.0K | Sale | 1,000 | $256.99 | Discretionary |
| Nov 3, 2025 | STX | $358.4K | Sale | 1,400 | $255.98 | Discretionary |
| Oct 1, 2025 | STX | $173.0K | Sale | 700 | $247.20 | Discretionary |
| Oct 1, 2025 | STX | $344.3K | Sale | 1,400 | $245.94 | Discretionary |
| Oct 1, 2025 | STX | $343.3K | Sale | 1,400 | $245.24 | Discretionary |