| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| MEHRA AJAY | PRESIDENT AND CEO, Director | 12525 CHADRON AVE, HAWTHORNE | /s/ Ajay Mehra | 28 Aug 2025 | 0001047059 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OSIS | Common Stock | Award | $3,459,369 | +15,362 | +15% | $225.19 | 116,957 | 26 Aug 2025 | Direct | F1 |
| transaction | OSIS | Common Stock | Tax liability | $4,244,832 | -18,850 | -16% | $225.19 | 98,107 | 26 Aug 2025 | Direct | F2 |
| holding | OSIS | Common Stock | 6,683 | 26 Aug 2025 | Mehra Family Trust | F3 |
| Id | Content |
|---|---|
| F1 | RSUs are issued pursuant to performance based vesting. |
| F2 | Pursuant to a net settlement, shares of stock were tendered to pay for the tax withholding. No shares of stock were sold. |
| F3 | Shares owned by the Mehra Family Trust dated 7-12-2008. |