Seagate Technology Officer Files Form 144 to Sell 663 Shares Under 10b5-1 Plan

Executive Summary

On September 10, 2026, Ban Seng Teh, an Officer at Seagate Technology Holdings plc ($STX), filed SEC Form 144 indicating a notice of proposed sale of 663 shares of Common Stock with an estimated aggregate market value of $570,239.67.

Transaction & Filing Details

• Securities to be Sold: 663 Common shares acquired on September 9, 2026, via restricted stock vesting from the issuer.
• Aggregate Market Value: $570,239.67 (~$860.09 per share).
• Broker: Morgan Stanley Smith Barney LLC Executive Financial Services.
• Trading Plan: The proposed sale is executed pursuant to a Rule 10b5-1 trading plan established on February 11, 2026.

Historical Context (Past 3 Months)

In the past three months, Ban Seng Teh has reported multiple transactions:

• 08/21/2026: 9,862 shares for $8,411,971.40
• 08/20/2026: 6,048 shares for $5,098,254.74
• 08/13/2026: 7,361 shares for $6,778,028.17
• 06/12/2026: 989 shares for $870,507.91

Significance Assessment

• Trading Significance: Low. The proposed disposition represents a modest volume of newly vested restricted stock and is governed by a pre-scheduled Rule 10b5-1 trading arrangement, implying minimal discretionary signaling value for investors.