Rutten Guillaume Marie Jean 4

What Happened Rutten Guillaume Marie Jean, a director of Amkor Technology, converted (exercised/vested) 10,748 time‑vested restricted stock units (RSUs) on February 24, 2026 and, on the same date, sold 20,000 shares in an open‑market transaction. The open‑market sale was reported at a weighted average price of $48.80 per share for gross proceeds of approximately $976,000. The RSUs converted at $0 consideration (they were awards that vested).

Key Details

• Transaction date: February 24, 2026; Form 4 filed February 26, 2026 (appears timely — filed within two business days).
• Open‑market sale: 20,000 shares at a weighted average price of $48.80 (range reported $48.80–$48.86), gross proceeds ≈ $976,000. (Footnote F1: weighted average; seller can provide breakdown on request.)
• RSU conversion: 10,748 shares acquired upon conversion of time‑vested RSUs awarded on Feb 24, 2022 (Footnote F2 explains these were time‑vested RSUs granted under the company’s Equity Incentive Plan and vest in four annual installments). The filing also shows a matching derivative disposition entry for 10,748 shares.
• Shares owned after the transactions: not disclosed in the excerpt provided.

Context

• The filing shows both the conversion/acquisition of RSU award shares and separate open‑market sales. Converting RSUs at $0 simply reflects vesting of an award; the subsequent sale is a disposition of shares.
• Sales by insiders are often routine (e.g., to diversify or for liquidity) and do not necessarily reflect a change in view on the company’s prospects. Purchases are generally more informative about insider confidence.