Form 4: Amkor Director Rutten Converts RSUs to Common Stock

Amkor Technology Director Guillaume Marie Jean Rutten acquired 172,329 shares of common stock through the vesting of restricted stock units.

Summary

• Director Guillaume Marie Jean Rutten acquired a total of 172,329 shares of Amkor Technology, Inc. common stock on February 20, 2026, through the conversion of Restricted Stock Units (RSUs).
• This includes 112,941 shares from RSUs granted on February 20, 2024, representing the second 40% vesting tranche of an original 282,352.5 RSU grant.
• An additional 59,388 shares were acquired from RSUs granted on February 20, 2025, representing the first of three equal annual installments of an original 178,164 RSU grant.
• Following these transactions, Rutten beneficially owns 553,118 shares of Amkor Technology, Inc. common stock.
• Rutten still holds 56,470 unvested RSUs from the 2024 grant, which are scheduled to vest on February 20, 2027.
• Rutten also holds 118,795 unvested RSUs from the 2025 grant, with remaining installments vesting on February 20, 2027, and February 20, 2028.

Sentiment

Score: 7

Explanation: StockSavvy.ai views this as a moderately positive signal, as it reflects a director's increasing direct ownership in the company through a standard compensation mechanism, aligning their interests with long-term shareholder value.

Positives

• Director Rutten's beneficial ownership of common stock increased by 172,329 shares, demonstrating continued equity stake in the company.
• The vesting of RSUs is a standard component of executive compensation, aligning management's interests with long-term shareholder value.

Future Outlook

This Form 4 filing does not contain forward-looking statements or guidance regarding the company's future performance.

Industry Context

StockSavvy.ai notes that routine insider transactions, such as RSU conversions, are common across the semiconductor packaging and test industry. These filings provide transparency into executive compensation structures and their alignment with shareholder interests, without necessarily indicating a shift in company strategy or performance.

Comparison to Industry Standards

• This RSU vesting and conversion is a standard practice for executive compensation in publicly traded companies, particularly within the technology and manufacturing sectors.
• Companies like Intel, Taiwan Semiconductor Manufacturing Company (TSMC), and Samsung often utilize similar equity incentive plans to retain and incentivize key personnel.
• The structure of multi-year vesting schedules is typical for promoting long-term commitment and aligning director interests with sustained company performance.

Stakeholder Impact

• Shareholders: Increased alignment of Director Rutten's interests with shareholders due to higher direct stock ownership.
• Employees: No direct impact on general employees, but reflects the company's executive compensation practices.

Next Steps

• Remaining 56,470 RSUs from the 2024 grant are scheduled to vest on February 20, 2027.
• Remaining 118,795 RSUs from the 2025 grant are scheduled to vest in two equal annual installments on February 20, 2027, and February 20, 2028.

Key Dates

Recommendation

This Form 4 filing details a routine, scheduled conversion of Restricted Stock Units (RSUs) into common stock by a director. It reflects standard executive compensation and an increase in insider ownership, which is generally positive for long-term alignment. However, it does not contain new information regarding the company's operational performance, strategic direction, or financial health that would warrant a change in investment recommendation. Therefore, a 'hold' recommendation is appropriate as this event is expected and does not alter the fundamental investment thesis.

Keywords

Amkor Technology, AMKR, Form 4, Insider Transaction, Restricted Stock Units, RSU Vesting, Director Stock Ownership, Equity Incentive Plan, Guillaume Marie Jean Rutten