| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| CHIZEVER GERALD M | Director | 12525 CHADRON AVENUE, HAWTHORNE | /s/ Gerald Chizever | 22 Aug 2025 | 0001134261 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OSIS | Common Stock | Award | $195,019 | +873 | +17% | $223.39 | 5,873 | 20 Aug 2025 | See Footnote | F1 |
| holding | OSIS | Common Stock | 4,276 | 20 Aug 2025 | Direct |
| Id | Content |
|---|---|
| F1 | Consists of shares of common stock held by The G&C Chizever Family Trust. Gerald and Caroline Chizever Trustees. |