MOSLEY WILLIAM D 4

What Happened

• William D. Mosley, CEO and Director of Seagate Technology Holdings plc (STX), reported the disposition of 24,584 shares on March 19, 2026. The Form 4 shows the shares disposed at $406.77 each for a total of $10,000,034. The filing classifies the transaction as a sale.

Key Details

• Transaction date: 2026-03-19; Report filed: 2026-03-23 (filed within the standard two-business-day reporting window).
• Price and amount: 24,584 shares at $406.77 per share; reported proceeds $10,000,034.
• Shares owned after the transaction: not disclosed in the filing.
• Notable footnote: The transaction reflects contribution of Seagate shares to an exchange fund in exchange for an interest in that fund. For Section 16 reporting purposes it is reported as a sale; the aggregate value was determined using Seagate’s closing price on March 18, 2026 (approximately $10.0M).

Context

• This was a reported sale (disposition) rather than an open-market purchase; contributions to exchange funds are commonly structured for diversification or tax planning and are reported as sales under Section 16, so the filing does not by itself indicate a change in Mr. Mosley’s view of the company.