Insider Trading Arrangements |
3 Months Ended |
|---|---|
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Jun. 30, 2026
shares
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| Trading Arrangements, by Individual | |
| Non-Rule 10b5-1 Arrangement Adopted | false |
| Rule 10b5-1 Arrangement Terminated | false |
| Non-Rule 10b5-1 Arrangement Terminated | false |
| Douglas A. Alexander [Member] | |
| Trading Arrangements, by Individual | |
| Material Terms of Trading Arrangement | On May 8, 2026, Douglas A. Alexander, a director of Amkor, adopted a “Rule 10b5-1 trading arrangement” as such term is defined in paragraph (a) of Item 408 of Regulation S-K promulgated under the Securities Act, which is intended to satisfy the affirmative defense of Rule 10b5-1(c). Mr. Alexander’s Rule 10b5-1 trading arrangement will terminate on the earliest of: (a) May 7, 2027; (b) the first date on which all trades have been executed or all trading orders relating to such trades have expired; and (c) the date on which Mr. Alexander gives notice to terminate his Rule 10b5-1 trading arrangement. 20,000 shares of our common stock are to be sold under Mr. Alexander’s Rule 10b5-1 trading arrangement.
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| Name | Douglas A. Alexander |
| Title | director of Amkor |
| Rule 10b5-1 Arrangement Adopted | true |
| Adoption Date | May 8, 2026 |
| Expiration Date | May 7, 2027 |
| Arrangement Duration | 364 days |
| Aggregate Available | 20,000 |
| Mark N. Rogers [Member] | |
| Trading Arrangements, by Individual | |
| Material Terms of Trading Arrangement | On June 9, 2026, Mark N. Rogers, Amkor’s Executive Vice President, General Counsel and Corporate Secretary adopted a “Rule 10b5-1 trading arrangement” as such term is defined in paragraph (a) of Item 408 of Regulation S-K promulgated under the Securities Act, which is intended to satisfy the affirmative defense of Rule 10b5-1(c). Mr. Rogers’ Rule 10b5-1 trading arrangement will terminate on the earliest of: (a) May 28, 2027; (b) the first date on which all trades have been executed or all trading orders relating to such trades have expired; and (c) the date on which Mr. Rogers gives notice to terminate his Rule 10b5-1 trading arrangement. 45,000 shares of our common stock are to be sold under Mr. Rogers’ Rule 10b5-1 trading arrangement.
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| Name | Mark N. Rogers |
| Title | Executive Vice President, General Counsel and Corporate Secretary |
| Rule 10b5-1 Arrangement Adopted | true |
| Adoption Date | June 9, 2026 |
| Expiration Date | May 28, 2027 |
| Arrangement Duration | 353 days |
| Aggregate Available | 45,000 |