Seagate Technology Holdings plc CEO Executes Routine Sell-to-Cover Transaction

Executive Summary

On September 15, 2026, William D. Mosley, Chief Executive Officer and Director of Seagate Technology Holdings plc ($STX), reported non-derivative equity activity on Form 4. The transactions consisted of the vesting of 3,319 restricted share units (RSUs) on September 11, 2026, followed by a mandatory sell-to-cover disposition of 1,869.75 ordinary shares on September 14, 2026, at an average price of $781.2254 per share to cover statutory tax withholding requirements.

Transaction Breakdown

• Acquisition / RSU Settlement (Code M): 3,319 Ordinary Shares acquired at $0.00 upon RSU vesting on September 11, 2026.
• Disposition / Tax Withholding (Code S): 1,869.75 Ordinary Shares sold on September 14, 2026, for an aggregate consideration of approximately $1.46M.
• Beneficial Ownership Post-Transaction: 298,997.5 Ordinary Shares held directly.

Context & Market Significance

This disposition does not represent a discretionary open-market divestiture. Per Footnote 1 of the filing, the sale was an issuer-mandated sell-to-cover transaction solely intended to fulfill tax liabilities resulting from the vesting of restricted stock units under the 2022 Equity Incentive Plan. Consequently, the trading significance is categorized as Low and reflects standard equity compensation administration rather than a shift in executive sentiment.