| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| BALL FREDERICK | Director | 1595 WYNKOOP STREET, SUITE 800, DENVER | /s/ Elizabeth Vonne - Attorney-in-Fact | 2025-05-06 | 0001175993 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AEIS | Common Stock | Options Exercise | +2.66K | +6.99% | 40.7K | May 9, 2023 | By 1998 Ball Family Trust | F1, F2 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | AEIS | Restricted Stock Units | Award | $0 | +2.26K | $0.00 | 2.26K | May 5, 2023 | Common Stock | 2.26K | Direct | F2, F3, F4 | ||
| transaction | AEIS | Restricted Stock Units | Options Exercise | $0 | -2.66K | -100% | $0.00 | 0 | May 9, 2022 | Common Stock | 2.66K | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Table I of the reporting person's Form 4 filed on May 9, 2023, omitted the acquisition of 2,655 shares acquired on the vesting of restricted stock units on May 9, 2022. Table 2 of that same Form 4 omitted the vesting of 2,655 shares of restricted stock units on May 9, 2022, and incorrectly included them in Table 2, Column 9, with a new grant of 2,257 restricted stock units. |
| F2 | Table I, Column 5 of the reporting person's Form 4 filed on May 9, 2023, omitted 46 shares acquired through the dividend reinvestment plan. |
| F3 | The 2,257 unvested restricted stock units represent an annual grant of restricted stock units on May 9, 2022, as the equity portion of non-employee directors' retainer for Board services under the 2023 Amended and Restated Omnibus Incentive Plan. The units vest on the one-year anniversary of the grant date contingent upon the Director's continued service upon such date, are not exercisable, and do not have an expiration date. |
| F4 | Table 2, Column 9 of the reporting person's Form 4 filed on May 9, 2023, incorrectly included 2,655 restricted stock units that vested with a new grant of 2,257 restricted stock units for a total of 4,912 of derivative securities. Please see footnote 1 above. |