Lin Chih-Hsiang (Thompson) 4

What Happened
Lin Chih‑Hsiang (Thompson), President & CEO and a director of Applied Optoelectronics, surrendered a total of 16,672 shares to the company on April 22, 2026 to satisfy tax‑withholding obligations tied to vested restricted stock units (RSUs). The shares were reported at $150.57 per share, representing aggregate consideration of approximately $2,510,303. The filing lists four separate surrender events: 9,331 shares ($1,404,969), 2,486 shares ($374,317), 2,690 shares ($405,033) and 2,165 shares ($325,984).

Key Details

• Transaction date: 2026-04-22; reported on Form 4 filed 2026-04-24 (timely filing).
• Price reported: $150.57 per share for all surrendered shares.
• Shares surrendered: 16,672 total; aggregate value ≈ $2,510,303.
• Transaction code: F — shares surrendered to issuer to satisfy tax withholding (not an open-market sale).
• Footnotes:
  • F1: withholding on RSU grant dated 2023-06-26 (9,331 shares)
  • F2: withholding on RSU grant dated 2024-04-29 (2,486 shares)
  • F3: withholding on RSU grant dated 2025-04-11 (2,690 shares)
  • F4: withholding on RSU grant dated 2026-02-09 (2,165 shares)
• Shares owned after the transaction: not disclosed in the provided filing details.

Context
Surrendering shares to cover tax withholding is a common, routine administrative step when RSUs vest; it is effectively a cashless settlement of the tax obligation rather than an open‑market sale. This type of transaction generally reflects tax housekeeping tied to compensation rather than a discretionary decision to sell stock.