| 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 | $126,324 | -23,468 | -1.8% | $5.38 | 1,316,545 | 10 Sep 2025 | Direct | |
| transaction | STI | Common Stock | Sale | $34,293 | -6,532 | -0.5% | $5.25 | 1,310,013 | 11 Sep 2025 | Direct | |
| transaction | STI | Common Stock | Sale | $22,660 | -4,000 | -0.31% | $5.66 | 1,306,013 | 12 Sep 2025 | Direct |