| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Grindstaff Glenn | CHIEF HUMAN RESOURCES OFFICER | 12525 CHADRON AVENUE, HAWTHORNE | /s/ Glenn Grindstaff | 09 May 2025 | 0001804609 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OSIS | Common Stock | Sale | $154,724 | -688 | -7.6% | $224.89 | 8,354 | 08 May 2025 | Direct |