| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Grindstaff Glenn | CHIEF HUMAN RESOURCES OFFICER | 12525 CHADRON AVENUE, HAWTHORNE | /s/ Glenn Grindstaff | 2025-05-09 | 0001804609 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OSIS | Common Stock | Sale | -$155K | -688 | -7.61% | $224.89 | 8.35K | May 8, 2025 | Direct |