| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Bose Arani | Director | ONE PENUMBRA PLACE, ALAMEDA | /s/ Johanna Roberts, as attorney-in-fact for Arani Bose | 15 Dec 2025 | 0001651318 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PEN | Common Stock | Sale | $619,536 | -2,030 | -0.74% | $305.19 | 271,432 | 11 Dec 2025 | By LLC | F1, F2, F3 |
| transaction | PEN | Common Stock | Sale | $1,516,444 | -4,946 | -1.8% | $306.60 | 266,486 | 11 Dec 2025 | By LLC | F1, F3, F4 |
| transaction | PEN | Common Stock | Sale | $159,692 | -520 | -0.2% | $307.10 | 265,966 | 11 Dec 2025 | By LLC | F1, F3, F5 |
| transaction | PEN | Common Stock | Sale | $1,232 | -4 | -0% | $308.00 | 265,962 | 11 Dec 2025 | By LLC | F1, F3 |
| transaction | PEN | Common Stock | Sale | $646,461 | -2,082 | -0.78% | $310.50 | 263,880 | 11 Dec 2025 | By LLC | F1, F3, F6 |
| transaction | PEN | Common Stock | Sale | $1,097,309 | -3,523 | -1.3% | $311.47 | 260,357 | 11 Dec 2025 | By LLC | F1, F3, F7 |
| transaction | PEN | Common Stock | Sale | $591,619 | -1,895 | -0.73% | $312.20 | 258,462 | 11 Dec 2025 | By LLC | F1, F3, F8 |
| holding | PEN | Common Stock | 558 | 11 Dec 2025 | Direct | F9 |
Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.
Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
| Id | Content |
|---|---|
| F1 | The sales were effected pursuant to the Reporting Person's Rule 10b5-1 trading plan. |
| F2 | This transaction was executed in multiple trades at prices ranging from $305.00 to $305.96. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the SEC staff, the Issuer or a security holder of the Issuer, upon request, full information regarding the number of shares and prices at which the transaction was effected. |
| F3 | Shares are held by Bose Family Holdings II, LLC. |
| F4 | This transaction was executed in multiple trades at prices ranging from $306.01 to $306.93. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the SEC staff, the Issuer or a security holder of the Issuer, upon request, full information regarding the number of shares and prices at which the transaction was effected. |
| F5 | This transaction was executed in multiple trades at prices ranging from $307.00 to $307.67. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the SEC staff, the Issuer or a security holder of the Issuer, upon request, full information regarding the number of shares and prices at which the transaction was effected. |
| F6 | This transaction was executed in multiple trades at prices ranging from $310.00 to $310.98. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the SEC staff, the Issuer or a security holder of the Issuer, upon request, full information regarding the number of shares and prices at which the transaction was effected. |
| F7 | This transaction was executed in multiple trades at prices ranging from $311.00 to $311.98. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the SEC staff, the Issuer or a security holder of the Issuer, upon request, full information regarding the number of shares and prices at which the transaction was effected. |
| F8 | This transaction was executed in multiple trades at prices ranging from $312.00 to $312.62. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide to the SEC staff, the Issuer or a security holder of the Issuer, upon request, full information regarding the number of shares and prices at which the transaction was effected. |
| F9 | A portion of these shares is subject to vesting. |