Seagate Technology EVP & CTO Sells $8.2M in Shares Under 10b5-1 Plan

Executive Summary

On September 21, 2026, John Christopher Morris, Executive Vice President and Chief Technology Officer of Seagate Technology Holdings plc (STX), conducted multiple transactions consisting of an option exercise and substantial open-market share dispositions totaling approximately $8.21 million.

Transaction Details

• Option Exercise: Mr. Morris exercised non-qualified stock options to acquire 915 Ordinary Shares at an exercise price of $158.40 per share.
• Open-Market Sales: Across 26 separate transactions on September 21, 2026, Mr. Morris sold a cumulative 9,354 Ordinary Shares at weighted average prices ranging between $863.66 and $902.07, yielding total gross proceeds of roughly $8,211,950.70 (effective average price of ~$877.91 per share).
• Rule 10b5-1 Plan: All reported sales and option exercises were executed pursuant to a pre-arranged Rule 10b5-1 trading plan established on January 29, 2026.
• Post-Transaction Holdings: Following these trades, Mr. Morris directly holds 22,693.25 Ordinary Shares as well as 17,378 unexercised stock options.

Market Impact & Significance

While the total dollar volume of the disposition is high ($8.21M), the trading significance is categorized as Medium because the sales were fully automated and governed by a Rule 10b5-1 trading plan adopted earlier in the year. Such pre-scheduled dispositions by corporate executives reflect standard portfolio diversification and liquidity planning rather than real-time sentiment shifts.