| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Yuen Maggie | Chief Financial Officer | ONE PENUMBRA PLACE, ALAMEDA | /s/ Johanna Roberts, as attorney-in-fact for Maggie Yuen | 17 Mar 2026 | 0001796057 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PEN | Common Stock | Tax liability | -186 | -1% | $336.18* | 18,167 | 15 Mar 2026 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | Shares were withheld by the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted stock units granted to the Reporting Person. |
| F2 | A portion of these shares is subject to vesting. |