| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Vonne Elizabeth Karpinski | EVP, General Counsel | 1595 WYNKOOP STREET, SUITE 800, DENVER | Elizabeth Vonne | 20 Feb 2026 | 0001923149 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AEIS | Common Stock | Options Exercise | $2,698,605 | +8,591 | +95% | $314.12 | 17,634 | 18 Feb 2026 | Direct | F1 |
| transaction | AEIS | Common Stock | Tax liability | $891,787 | -2,839 | -16% | $314.12 | 14,795 | 18 Feb 2026 | Direct | F2 |
| transaction | AEIS | Common Stock | Disposed to Issuer | -2,148 | -15% | 12,647 | 18 Feb 2026 | Direct | F3, F4 |
| 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 | -5,255 | -100% | $0.000000 | 0 | 18 Feb 2026 | Common Stock | 0 | $0.000000 | Direct | F5 |
| transaction | AEIS | Phantom Stock | Award | $0 | +2,148 | +245% | $0.000000 | 3,024 | 18 Feb 2026 | Common Stock | 2,148 | Direct | F6 |
| 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 | In connection with the February 18, 2026 vesting of PSUs previously granted on March 1, 2023, the reporting person's receipt of 2,148 shares of common stock was deferred pursuant to the reporting person's election under the Company's deferred compensation plan (the "Plan"), resulting in the reporting person's receipt of 2,148 shares of phantom stock. |
| F4 | Represents 3,065 shares of unvested restricted stock units and 9,582 shares of common stock. |
| F5 | 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. |
| F6 | Each share of phantom stock represents a right to receive one share of common stock or the cash value thereof. Shares of phantom stock become payable in accordance with the reporting person's distribution elections made pursuant to the Plan or upon the reporting person's termination of service, death, or disability. Subject to timing restrictions, the reporting person may transfer some or all of the shares of phantom stock into alternative investments under the terms on the Plan. |