| Name | Relationship | Address | Signature | Signature date | CIK | 
|---|---|---|---|---|---|
| CHIZEVER GERALD M | Director | 12525 CHADRON AVENUE, HAWTHORNE | /s/ Gerald Chizever | 2025-08-22 | 0001134261 | 
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes | 
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OSIS | Common Stock | Award | $195K | +873 | +17.46% | $223.39 | 5.87K | Aug 20, 2025 | See Footnote | F1 | 
| holding | OSIS | Common Stock | 4.28K | Aug 20, 2025 | Direct | 
| Id | Content | 
|---|---|
| F1 | Consists of shares of common stock held by The G&C Chizever Family Trust. Gerald and Caroline Chizever Trustees. |