Form 4: Diodes Director Keh-Shew Lu Reports Routine Tax-Related Stock Disposition

Diodes Inc. Director Keh-Shew Lu reported the disposition of 2,166 common shares at $46.61 to cover income tax obligations related to vested restricted stock units.

Summary

• Keh-Shew Lu, a Director of Diodes Incorporated (DIOD), reported a transaction on May 27, 2025.
• The transaction involved the disposition of 2,166 shares of Diodes Incorporated Common Stock at a price of $46.61 per share.
• This disposition was coded 'F', indicating that vested restricted stock unit shares were automatically withheld to cover income tax obligations.
• Following this transaction, Mr. Lu directly beneficially owns 104,625 shares of Diodes Incorporated Common Stock.
• Additionally, Mr. Lu indirectly beneficially owns 46,150 shares through custodial accounts for minor grandchildren (ownership disclaimed), 275,791 shares through the Lu Grandchildren's Trust, 6,000 shares through The Lu Family Foundation, 4,700 shares through The Lu 2017 Irrevocable Trust, and 246,492 shares through Texastac Investments, LP.
• Mr. Lu also directly holds 92,000 Diodes Incorporated Common Stock Performance Stock Units.

Sentiment

Score: 6

Explanation: The sentiment is neutral to slightly positive. While shares were disposed, it was a mandatory tax withholding event following the vesting of restricted stock units, which implies the achievement of performance or tenure conditions. This is a routine and expected transaction for executives.

Positives

• The transaction indicates the vesting of restricted stock units, which typically occurs upon meeting performance targets or tenure requirements, reflecting positive executive compensation outcomes.

Negatives

• A disposition of shares, even for tax purposes, reduces the direct beneficial ownership of the reporting person.

Future Outlook

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

Management Comments

• The disposition of 2,166 shares was due to vested restricted stock unit shares being automatically withheld to cover income tax obligations.

Industry Context

This is a routine insider transaction filing (Form 4) common across all publicly traded companies. It reflects a standard practice of tax withholding upon the vesting of equity compensation for executives and directors.

Related Party Transactions

• Indirect beneficial ownership is reported through various family-related entities such as the Lu Grandchildren's Trust, The Lu Family Foundation, The Lu 2017 Irrevocable Trust, and Texastac Investments, LP. Additionally, shares are held in custodial accounts for minor grandchildren, with the reporting person disclaiming beneficial ownership for Section 16 purposes.

Stakeholder Impact

• Shareholders: Minimal direct impact as this is a routine, tax-related transaction and not a discretionary sale by the director. It confirms the vesting of equity compensation.
• Employees: No direct impact mentioned.
• Customers: No direct impact mentioned.
• Suppliers: No direct impact mentioned.
• Creditors: No direct impact mentioned.

Key Dates

Keywords

Diodes Inc, DIOD, Form 4, Insider Transaction, Stock Disposition, Restricted Stock Units, Tax Withholding, Beneficial Ownership, Keh-Shew Lu