MOSLEY WILLIAM D 4

What Happened William D. Mosley, CEO and Director of Seagate Technology Holdings plc (STX), had restricted stock units (RSUs) convert into common shares on March 9, 2026. A total of 5,230 shares vested/converted (2,815 + 2,415). To cover tax withholding, 2,613 shares were surrendered at $374.33 each, generating cash proceeds of $978,124 (1,406 shares = $526,308; 1,207 shares = $451,816). The net shares delivered to Mr. Mosley after withholding were 2,617 shares (approx. $979,621 in value at $374.33).

Key Details

• Transaction date: March 9, 2026. Filing date: March 11, 2026 (no late filing indicated).
• Vesting/conversion: 2,815 and 2,415 shares (total 5,230) reported as conversion/exercise of derivative (RSU vesting).
• Tax withholding: 1,406 shares and 1,207 shares withheld at $374.33/share, totaling $526,308 and $451,816 respectively (combined $978,124).
• Net shares received: 2,617 shares retained by the reporting person.
• Shares owned after transaction: Not reported in the Form 4 provided.
• Footnotes: These shares arose from RSU grants under the Seagate 2022 Equity Incentive Plan. One grant followed a vesting schedule beginning Sept 9, 2023 (quarterly over four years); the other began vesting Sept 9, 2025 (quarterly over four years).
• Transaction codes: M = conversion/exercise of derivative (RSU conversion); F = payment of exercise price or tax liability (share withholding for taxes).

Context This was an RSU vesting event with shares withheld to satisfy tax obligations (a common, administrative transaction), not an open-market sale or purchase. For retail investors, such withholding transactions do not directly indicate bullish or bearish insider sentiment; they report compensation-related conversions and routine tax withholding.