| Name | Relationship | Address | Signature | Signature date | CIK | 
|---|---|---|---|---|---|
| Chambers Rebecca | Chief Financial Officer | 6000 SHORELINE COURT, SUITE 300, SOUTH SAN FRANCISCO | /s/ Jonathan Wygant as attorney-in-fact | 2025-06-04 | 0001823563 | 
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes | 
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | VCYT | Common Stock | Tax liability | -$144K | -5.37K | -3.73% | $26.74 | 139K | Jun 2, 2025 | Direct | F1 | 
| Id | Content | 
|---|---|
| F1 | The reporting person is reporting the withholding of 1,080, 658, 906, 826 and 1,900 shares of common stock to satisfy the reporting person's tax withholding obligations in connection with the vesting of 2,125, 1,295, 1,784, 1,626 and 3,741 Restricted Stock Units granted on July 19, 2021, March 3, 2022 , August 5, 2022, March 6, 2023 and March 6, 2024, respectively, and does not represent a sale by the reporting person. |