Form 4: Magnachip Officer Reports RSU Vesting, Tax Withholdings

Magnachip Semiconductor's Chief of Manufacturing, Lee Seunghoon, reported the vesting of restricted stock units and associated tax withholdings, alongside the acquisition of new performance-based RSUs.

Summary

• Lee Seunghoon, Chief of Manufacturing at Magnachip Semiconductor Corp., reported several transactions related to company stock.
• On August 15, 2025, Lee Seunghoon acquired 30,750 shares of common stock at a price of $0.00.
• On December 31, 2025, 7,000 shares of common stock vested from a grant made on June 1, 2024, at a price of $2.55 per share.
• On the same date, a total of 15,752 shares were disposed of at $2.55 per share to satisfy tax withholding obligations related to the vesting of various RSU grants (3,333 shares for 7,000 vested, 2,778 shares for 5,834 vested, 4,761 shares for 10,000 vested, and 4,880 shares for 10,250 vested).
• Following these transactions, Lee Seunghoon's direct beneficial ownership of common stock is 128,201 shares.
• Additionally, on August 15, 2025, 15,375 Performance-Based Restricted Stock Units (PRSUs) were acquired at $0.00, which represent a contingent right to receive one share of common stock each, with vesting tied to the Issuer's common stock achieving a specified price per share and an expiration date of January 31, 2028.

Sentiment

Score: 5

Explanation: The filing reports standard executive compensation activities, including RSU vesting and tax withholdings, which are neutral in sentiment. The acquisition of new performance-based RSUs is a positive for aligning incentives, but the overall impact is routine.

Positives

• Acquisition of 30,750 shares of common stock at $0.00, likely through RSU vesting, increasing direct ownership.
• Vesting of 7,000 shares of common stock from a June 1, 2024 grant, indicating achievement of performance conditions.
• Acquisition of 15,375 Performance-Based Restricted Stock Units (PRSUs), aligning management incentives with shareholder value through stock price targets.

Negatives

• Disposal of 15,752 shares of common stock to cover tax withholding obligations, reducing the total number of shares beneficially owned.

Future Outlook

The reporting person holds 15,375 Performance-Based Restricted Stock Units (PRSUs) that are contingent rights to receive common stock. These PRSUs are eligible to vest based on the Issuer's common stock achieving a specified price per share, with the actual number vesting ranging from 0% to 100% of the target, and have an expiration date of January 31, 2028.

Management Comments

• Chief of Manufacturing

Industry Context

This Form 4 filing details routine insider transactions related to executive compensation, specifically the vesting of restricted stock units and associated tax withholdings. Such transactions are common across the semiconductor industry as a mechanism for executive incentive and retention, aligning management interests with long-term shareholder value.

Stakeholder Impact

• Shareholders: The vesting and tax-related sales by an officer are routine and generally have minimal direct impact. The new PRSUs align the officer's incentives with stock price performance, potentially benefiting shareholders if targets are met.
• Employees: The filing details executive compensation, which may set a precedent or reflect the company's overall compensation philosophy.

Next Steps

• The Performance-Based Restricted Stock Units (PRSUs) will vest upon Magnachip Semiconductor's common stock achieving a specified price per share, with an expiration date of January 31, 2028.

Key Dates

Recommendation

This Form 4 filing details routine insider transactions related to executive compensation, including RSU vesting and tax withholdings. While the acquisition of new performance-based RSUs aligns management incentives with stock performance, these transactions are standard and do not provide new fundamental information to warrant a change in investment recommendation. The filing does not present any significant positive or negative catalysts for the stock, thus a 'hold' recommendation is appropriate.

Keywords

Magnachip Semiconductor, MX, Form 4, Insider Trading, Restricted Stock Units, RSU Vesting, Performance-Based RSUs, Executive Compensation, Stock Ownership, Tax Withholding