Form 4: Amkor EVP & General Counsel Sells 20,000 Shares

Amkor Technology's EVP & General Counsel, Mark N. Rogers, executed a pre-planned sale of 20,000 common shares for approximately $42.95 per share after exercising stock options.

Summary

• Mark N. Rogers, EVP & General Counsel of Amkor Technology, Inc. (AMKR), reported a transaction involving the company's common stock.
• On December 16, 2025, Rogers exercised an employee stock option to acquire 20,000 shares of common stock at an exercise price of $7.40 per share.
• Concurrently, on December 16, 2025, Rogers sold 20,000 shares of common stock at a weighted average price of $42.95 per share.
• The sale was executed pursuant to a Rule 10b5-1 trading plan adopted on August 1, 2025.
• Following these transactions, Rogers beneficially owns 23,862 shares of common stock directly and 110,000 derivative securities (employee stock options).

Sentiment

Score: 5

Explanation: Neutral for the company. This is a routine, pre-planned insider transaction (Form 4) that does not reflect new operational or financial performance. It's positive for the individual executive's personal finances but has no direct positive or negative implications for the company's immediate prospects.

Positives

• The executive exercised options and sold shares at a significantly higher price than the exercise price, indicating personal financial gain.
• The transaction was conducted under a pre-arranged Rule 10b5-1 trading plan, which suggests a planned and transparent approach to insider trading.

Negatives

• An executive selling shares could be interpreted by some investors as a lack of confidence, although this is mitigated by the 10b5-1 plan.

Future Outlook

No specific future outlook or guidance for the company is provided in this Form 4 filing, which focuses solely on an insider transaction.

Management Comments

• The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 1, 2025.
• The Reporting Person hereby undertakes to provide, upon request, to the staff of the Securities and Exchange Commission, Amkor Technology, Inc. (the "Issuer"), or any security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.

Industry Context

This is a routine insider transaction and does not provide specific insights into broader industry trends or competitive landscape. It reflects an individual executive's financial planning.

Comparison to Industry Standards

• The use of a Rule 10b5-1 trading plan is a standard practice among executives of publicly traded companies to manage personal stock sales in compliance with insider trading regulations, similar to practices at companies like Intel or Micron Technology.
• The significant difference between the option exercise price ($7.40) and the sale price ($42.95) highlights the potential for substantial personal gains from executive stock option programs, a common feature in compensation packages across the semiconductor packaging and test industry.

Stakeholder Impact

• Shareholders: Minor impact. A routine insider sale under a 10b5-1 plan is generally not seen as a strong signal of future company performance, but some may view executive sales negatively.
• Employees: No direct impact mentioned.
• Customers/Suppliers/Creditors: No direct impact mentioned.

Key Dates

Keywords

Amkor Technology, AMKR, Form 4, Insider Trading, Stock Option Exercise, Executive Compensation, Rule 10b5-1, Mark N. Rogers, Share Sale