| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Shukla Rahul | Chief Accounting Officer | 1400 POST OAK BOULEVARD, SUITE 560, HOUSTON | /s/ Sarah Dunn, attorney-in-fact | 19 Nov 2025 | 0001900919 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | STEM | Common Stock, Par Value $0.0001 Per Share | Sale | $59,556 | -3,674 | -100% | $16.21 | 0 | 18 Nov 2025 | Direct |