| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Powell Christopher M | Chief Legal Officer | 9651 KATY FREEWAY, SUITE 300, HOUSTON | /s/ Christopher M. Powell | 03 Mar 2026 | 0001710164 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SEI | Class A Common Stock | Award | $0 | +18,165 | +14% | $0.000000 | 148,780 | 01 Mar 2026 | Direct | F1 |
| transaction | SEI | Class A Common Stock | Award | $0 | +29,723 | +20% | $0.000000 | 178,503 | 01 Mar 2026 | Direct | F2 |
| transaction | SEI | Class A Common Stock | Tax liability | $1,366,512 | -27,534 | -15% | $49.63 | 150,969 | 01 Mar 2026 | Direct | F3, F4 |
| Id | Content |
|---|---|
| F1 | Restricted Stock Award granted pursuant to the Solaris Energy Infrastructure, Inc. Long Term Incentive Plan on the date indicated. The award vests in three equal installments on the first three anniversaries of the grant date. |
| F2 | Reflects the vesting and settlement of shares that relate to multiple Performance-Based Restricted Stock Unit (PSU) awards granted pursuant to the Solaris Energy Infrastructure, Inc. Long Term Incentive Plan. The PSUs which were originally granted on March 1, 2023, March 1, 2024 and March 1, 2025 vested and were settled based on the Issuer's level of achievement with respect to the applicable performance goals. |
| F3 | Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted Restricted Stock Awards and Performance-Based Restricted Stock Awards. |
| F4 | Includes 58,447 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting. |