| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Kelley Stephen Douglas | President and CEO, Director | 1595 WYNKOOP STREET, SUITE 800, DENVER | /s/ Elizabeth Vonne - Attorney-in-Fact | 20 Feb 2026 | 0001443674 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AEIS | Common Stock | Options Exercise | $16,869,500 | +53,704 | +57% | $314.12 | 147,656 | 18 Feb 2026 | Direct | F1 |
| transaction | AEIS | Common Stock | Tax liability | $7,383,076 | -23,504 | -16% | $314.12 | 124,152 | 18 Feb 2026 | Direct | F2, F3 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AEIS | Performance Units | Options Exercise | $0 | -32,849 | -100% | $0.000000 | 0 | 18 Feb 2026 | Common Stock | 0 | $0.000000 | Direct | F4 |
| Id | Content |
|---|---|
| F1 | Represents the total number of shares vested pursuant to the performance unit award issued under the 2023 Long-Term Incentive Plan (the "2023 LTI Plan") and reported voluntarily on 3/3/2023, based on achievement of performance metrics under the 2023 LTI Plan. The shares were approved for a 2/18/2026 release by the Board of Directors. |
| F2 | Payment of tax liability by withholding securities incident to vesting of performance stock units. |
| F3 | Represents 21,899 shares of unvested restricted stock units and 102,253 shares of common stock. |
| F4 | These performance unit awards were issued under the 2023 LTI Plan at 100% of target and reported voluntarily on 3/3/2023. Following the end of the three-year performance period, the awards vested based on achievement of performance metrics under the 2023 LTI Plan. |