Seagate Technology Holdings plc 4

CEO William D. Mosley of Seagate Technology Holdings plc exercised and received RSU and option awards and sold a total of 18,038.5 ordinary shares around $849.35 per share, ending with about 311,000 shares owned directly.

On August 20, 2026, Seagate Technology Holdings plc CEO William D. Mosley exercised multiple tranches of previously granted RSUs into ordinary shares (6,404; 21,065; and 6,320 shares) at no cost and also received three new RSU awards (5,309; 5,280; and 1,584 ordinary shares) plus a new non-qualified stock option grant for 31,856 shares at an exercise price of $850.24 per share, all under the company’s equity incentive plan with multi‑year vesting schedules. In connection with these equity events, Mosley executed same‑day or next‑day sales on August 21, 2026 of 3,437.75, 11,308, and 3,392.75 ordinary shares at an average price of approximately $849.35 per share, likely to cover taxes or manage exposure, while his overall direct ownership in ordinary shares remained substantial at roughly 311,000 shares following the transactions. The Form 4 footnotes describe the RSU and option grants as routine compensation awards subject to four‑year or one‑year vesting, indicating these are structured, planned equity compensation and associated liquidity transactions rather than a discretionary large open‑market purchase or exit.

Filing Facts

CIK

1137789

Ticker

STX

Form

4

Source Type

sec

Accession

0001137789-26-000182

Alert Tier

8