| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Roberts Johanna | EVP, Gen. Counsel & Secretary | ONE PENUMBRA PLACE, ALAMEDA | /s/ Johanna Roberts | 17 Dec 2025 | 0001751980 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PEN | Common Stock | Tax liability | $349,340 | -1,130 | -1.8% | $309.15 | 62,706 | 15 Dec 2025 | 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. |