| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Global Graphene Group, Inc. | 10%+ Owner | 1240 MCCOOK AVE., DAYTON | /s/ Robert Crouch, Vice President of Legal Affairs | 15 Dec 2025 | 0001678511 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | STI | Common Stock | Sale | $4,472 | -568 | -0.03% | $7.87 | 1,745,445 | 11 Dec 2025 | Direct | |
| transaction | STI | Common Stock | Sale | $5,902 | -750 | -0.04% | $7.87 | 1,744,695 | 12 Dec 2025 | Direct |