| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Ballhaus William Francis JR | Director | 12525 CHADRON AVE, HAWTHORNE | /s/ William Ballhaus | 22 Aug 2025 | 0001490925 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OSIS | Common Stock | Award | $224,954 | +1,007 | +4% | $223.39 | 26,162 | 20 Aug 2025 | Ballhaus Trust - See Footnote | F1 |
| holding | OSIS | Common Stock | 3,701 | 20 Aug 2025 | Direct |
| Id | Content |
|---|---|
| F1 | Ballhaus Trust U/A 1/25/02 Dr. William Ballhaus Jr. and Jane K Ballhaus Trustees. |