ROGERS MARK N 4

What Happened

• Mark N. Rogers, EVP & General Counsel of Amkor Technology (AMKR), exercised stock options to acquire 5,000 shares at $7.40 per share (cost $37,000) and sold those 5,000 shares the same day in an open-market transaction at $44.54 per share, generating proceeds of $222,700 (transactions dated Mar 16, 2026). The filing also records a derivative disposition tied to the exercise.

Key Details

• Transaction date: March 16, 2026.
• Exercise: 5,000 shares at $7.40 each — total $37,000 (code M).
• Sale: 5,000 shares at $44.54 each — total proceeds $222,700 (code S).
• Derivative disposition: 5,000 shares reported as disposed at $0.00 in connection with the exercise (reported as a derivative conversion).
• Shares owned after transaction: Not disclosed in the provided excerpt of the Form 4.
• Footnotes: Sale was executed under a Rule 10b5-1 trading plan adopted Aug 1, 2025 (F1). The option was part of a 200,000-share grant dated June 10, 2019 that vested over four years (F2).
• Filing: Form 4 filed Mar 18, 2026 for transactions on Mar 16, 2026 — appears timely (no late filing flagged).

Context

• Because the exercise and open-market sale occurred the same day, this represents an exercise followed by an immediate sale of the shares (commonly a cashless exercise + sale). The sale was implemented under a pre-established 10b5-1 plan, which can indicate pre-planned routine disposition rather than ad hoc trading.