Seagate Technology CFO Gianluca Romano Disposes of ~$4.68M in Ordinary Shares

Insider Trading Analysis: Seagate Technology Holdings plc ($STX)

Executive Summary

On September 15, 2026, Gianluca Romano, Executive Vice President & Chief Financial Officer of Seagate Technology Holdings plc, filed Form 4 detailing equity transactions conducted between September 11, 2026, and September 14, 2026. The insider disposed of an aggregate of 5,555 Ordinary Shares for total gross proceeds of approximately $4.68 million, leaving a post-transaction direct holding of 30,360 Ordinary Shares and 6,780 unvested Restricted Share Units (RSUs).

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Detailed Breakdown of Transactions

1. Derivative Conversion (Code M):

   • Date: September 11, 2026
   • Securities: 1,695 RSUs vested and settled for 1,695 Ordinary Shares at $0 exercise price.

2. Rule 10b5-1 Programmatic Sales (Code S):

   • Date: September 11, 2026
   • Volume: 4,600 Ordinary Shares disposed across 14 weighted-average price tranches ranging from $844.81 to $868.43.
   • Total Value Generated: ~$3,930,948.
   • Plan Details: Executed pursuant to a Rule 10b5-1 trading plan adopted on April 30, 2026.

3. Tax Withholding Sell-to-Cover (Code S):

   • Date: September 14, 2026
   • Volume: 955 Ordinary Shares at an average price of $781.24.
   • Total Value: ~$746,087.
   • Purpose: Mandated sell-to-cover transaction solely to satisfy tax withholding obligations triggered by RSU vesting.

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Ownership Impact & Market Significance

• Trading Significance: Medium
• Context: The vast majority of share disposals were scheduled under a pre-established Rule 10b5-1 plan established over four months prior, with the remainder attributable to mandatory tax withholding on RSU settlements. Romano retains a significant equity stake consisting of 30,360 direct shares and 6,780 RSUs, maintaining substantial alignment with shareholder interests.