| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| SZE VICTOR S | GENERAL COUNSEL | 12525 CHADRON AVE, HAWTHORNE | /s/ Victor Sze | 01 Jul 2025 | 0001286090 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | OSIS | Common Stock | Award | $10,546 | +75 | +0.1% | $140.61 | 78,353 | 30 Jun 2025 | Direct | F1 |
| holding | OSIS | Common Stock | 5,639 | 30 Jun 2025 | Please see footnote | F2 |
| Id | Content |
|---|---|
| F1 | Acquired pursuant to issuer's Employee Stock Purchase Plan. |
| F2 | Victor So-Mien Sze & Angela Hsin-Chi Hsu Co-ttee Sze Trust U/T/A DTD 11/25/2014 |