| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Gilstrap Jeremy | EVP, Innovation | 5956 W. LAS POSITAS BLVD, PLEASANTON | Cari Fisher, Attorney-in-Fact | 04 Aug 2025 | 0001959672 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | SSD | Common Stock | Sale | $445,675 | -2,500 | -24% | $178.27 | 7,794 | 01 Aug 2025 | Direct | F1, F2 |
| holding | SSD | Common Stock | 1,244 | 01 Aug 2025 | By Trust (PSP) | F3 |
| Id | Content |
|---|---|
| F1 | The price reported is a weighted average sales price. The shares were sold in multiple transactions at prices ranging from $178.23 to $178.53, inclusive. The reporting person undertakes to provide to the Company, any security holder of the Company or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. |
| F2 | Includes Restricted Stock Units that have not yet vested. |
| F3 | The shares are owned by the Simpson Manufacturing Co., Inc. Profit Sharing Plan for Salaried Employees (the "Plan") of which the reporting person is a participant. The Plan qualifies under sections 401(a)(26) and 410 of the Internal Revenue Code. |