Seagate Technology Officer Ban Seng Teh Files Form 144 Notice of Proposed $41.2M Share Sale

Seagate Technology Holdings plc ($STX) – Form 144 Filing Summary

Filing Overview:

• Issuer: Seagate Technology Holdings plc (CIK: 0001137789)
• Reporting Person: Ban Seng Teh, Officer (CIK: 0001801425)
• Filing Date: September 15, 2026
• Accession Number: 0001950047-26-009485

Proposed Transaction Details:

• Security Class: Common
• Number of Shares to Sell: 52,730
• Aggregate Market Value: $41,239,128.49
• Approximate Sale Date: September 15, 2026
• Acquisition Nature: Performance Shares acquired from the issuer on September 14, 2026
• Broker: Morgan Stanley Smith Barney LLC
• Trading Plan: Executed pursuant to a Rule 10b5-1 trading plan adopted on February 11, 2026.

Past 3 Months Sales History:

• September 14, 2026: 989 shares for $770,431.00
• September 10, 2026: 663 shares for $570,239.67
• August 21, 2026: 9,862 shares for $8,411,971.40
• August 20, 2026: 6,048 shares for $5,098,254.74
• August 13, 2026: 7,361 shares for $6,778,028.17

Analysis & Significance: The proposed transaction represents a substantial liquidity event ($41.2M+), marked as High significance due to the dollar magnitude. Because the sale is governed by a pre-established Rule 10b5-1 plan adopted in February 2026, it follows scheduled executive compensation liquidation procedures following the vesting/delivery of performance shares.