| 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 | 12 Sep 2025 | 0001678511 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | STI | Common Stock | Sale | -$126K | -23.5K | -1.75% | $5.38 | 1.32M | 10 Sep 2025 | Direct | |
| transaction | STI | Common Stock | Sale | -$34.3K | -6.53K | -0.5% | $5.25 | 1.31M | 11 Sep 2025 | Direct | |
| transaction | STI | Common Stock | Sale | -$22.7K | -4K | -0.31% | $5.67 | 1.31M | 12 Sep 2025 | Direct |