Seagate Technology Holdings plc 4

CEO William D. Mosley exercised 14,000 options and sold 12,920 Seagate Ordinary Shares on August 3, 2026 for about $10.3 million in gross proceeds under a Rule 10b5‑1 plan.

On August 3, 2026, Seagate Technology Holdings plc CEO William D. Mosley exercised 14,000 nonqualified stock options at an exercise price of $46.23 per share, acquiring 14,000 Ordinary Shares, and on the same day sold 12,920 Ordinary Shares in a series of pre‑planned Rule 10b5‑1 transactions at prices ranging from approximately $783.84 to $818.58 per share, for total sale proceeds of about $10.3 million. The option exercise cost was roughly $0.6 million, implying net proceeds of about $9.7 million from the combined exercise-and-sell activity. After these transactions, Mosley beneficially owned 312,597 Ordinary Shares directly, representing an equity stake worth roughly $255 million using the prevailing sale prices as a proxy for current market value. The sales were effected in many small blocks within tight price ranges, consistent with an orderly liquidation pattern associated with a 10b5‑1 trading plan rather than a one-time discretionary sale.

Filing Facts

CIK

1137789

Ticker

STX

Form

4

Source Type

sec

Accession

0001137789-26-000163

Alert Tier

9