Transaction Details

Footnotes

At the election of the Reporting Person, a portion of the shares of common stock acquired pursuant to this filing have been deferred under the Simpson Manufacturing Co., Inc. Nonqualified Plan (the "Plan") and will settle on a future date selected by the Reporting Person at the time of his or her deferral election. | Represents performance stock units granted in January 2023, for which the performance and vesting periods ended December 31, 2025, and for which the settlement date was February 17, 2026. | Represents shares of common stock withheld by the Company to satisfy the tax withholding obligation for the reporting person's performance stock units that settled on February 17, 2026, and restricted stock units that vested on February 17, 2026. | Includes 1,958 restricted stock units that have not yet vested and 2,774 shares of common stock deferred under the Plan which will settle pursuant to the applicable terms of the Reporting Person's deferral election. | 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.