Seagate Technology Officer Files Form 144 for Sell-to-Cover Transaction

Executive Summary

On September 14, 2026, Morris John Christopher, an Officer of Seagate Technology Holdings plc ($STX), filed SEC Form 144 indicating a proposed sale of 518 shares of Common Stock through Morgan Stanley, with an estimated aggregate market value of $404,405.00.

Transaction Details

• Security: Common Stock
• Proposed Sale Quantity: 518 shares
• Aggregate Market Value: $404,405.00 (~$780.70 per share)
• Shares Outstanding: 226,644,518
• Source of Shares: Acquired on September 11, 2026, via Restricted Stock Unit (RSU) vesting (942 shares acquired).
• Purpose / Remarks: The filing explicitly notes that the proposed sales are made pursuant to an issuer-mandated sell-to-cover solely to satisfy tax withholding obligations.

Prior Sales in Past 3 Months

• 08/03/2026: 168 shares for $137,383.68
• 08/21/2026: 4,039 shares for $3,420,119.36
• 09/10/2026: 892 shares for $769,234.55

Market & Governance Impact

This transaction is categorized as having Low trading significance. Because the disposition is an automatic sell-to-cover event driven by tax withholding obligations following equity compensation vesting, it does not represent discretionary selling or signal a change in executive sentiment regarding the company's outlook.