| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Miller Russell D | Sr. Executive Vice President | 999 LAKE DRIVE, ISSAQUAH | /s/ Alejandro Torres, Attorney-in-Fact | 2025-09-24 | 0001729741 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | COST | Common Stock | Gift | $0 | -2.92K | -99.93% | $0.00 | 1.93 | Sep 23, 2025 | Direct | |
| transaction | COST | Common Stock | Gift | $0 | +2.92K | +28.6% | $0.00 | 13.1K | Sep 23, 2025 | Miller Family Trust |