| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Frates Caton | Executive Vice President | 999 LAKE DRIVE, ISSAQUAH | /s/ Alejandro Torres, Attorney-in-Fact | 30 Sep 2025 | 0001928633 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | COST | Common Stock | Sale | $1,401,431 | -1,540 | -14% | $910.02 | 9,284 | 29 Sep 2025 | Direct |