| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 05/17/2023 | RELIANCE STEEL & ALUMINUM CO | RS | Grant | Common Stock | 615 | $0.00 | $0 | | 05/17/2023 |
| 12/19/2022 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 13.9k | $90.70 | $1.3M | | 12/19/2022 |
| 12/19/2022 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 1.1k | $91.46 | $102.2k | | 12/19/2022 |
| 06/06/2022 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 240 | $111.19 | $26.7k | | 06/06/2022 |
| 06/06/2022 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 11.9k | $110.57 | $1.3M | | 06/06/2022 |
| 06/06/2022 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 2.9k | $109.92 | $314.2k | | 06/06/2022 |
| 05/18/2022 | RELIANCE STEEL & ALUMINUM CO | RS | Grant | Common Stock | 767 | $0.00 | $0 | | 05/18/2022 |
| 02/15/2022 | Simpson Manufacturing Co., Inc. | SSD | Payment of Exercise | Common Stock | 32.6k | $117.37 | $3.8M | | 02/15/2022 |
| 02/15/2022 | Simpson Manufacturing Co., Inc. | SSD | Grant | Common Stock | 57.3k | $0.00 | $0 | | 02/15/2022 |
| 01/20/2022 | Simpson Manufacturing Co., Inc. | SSD | Grant | Common Stock | 6.9k | $0.00 | $0 | | 01/20/2022 |
| 11/08/2021 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 15k | $120.91 | $1.8M | By Trust | 11/08/2021 |
| 05/19/2021 | RELIANCE STEEL & ALUMINUM CO | RS | Grant | Common Stock | 781 | $0.00 | $0 | | 05/19/2021 |
| 04/05/2021 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 19.6k | $105.28 | $2.1M | By Trust | 04/05/2021 |
| 04/05/2021 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 440 | $105.81 | $46.6k | By Trust | 04/05/2021 |
| 03/10/2021 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 10k | $108.00 | $1.1M | By Trust | 03/10/2021 |
| 02/16/2021 | Simpson Manufacturing Co., Inc. | SSD | Payment of Exercise | Common Stock | 18.1k | $95.53 | $1.7M | | 02/16/2021 |
| 02/16/2021 | Simpson Manufacturing Co., Inc. | SSD | Grant | Common Stock | 30.1k | $0.00 | $0 | | 02/16/2021 |
| 01/22/2021 | Simpson Manufacturing Co., Inc. | SSD | Grant | Common Stock | 9k | $0.00 | $0 | | 01/22/2021 |
| 01/19/2021 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 15.2k | $102.15 | $1.5M | By Trust | 01/19/2021 |
| 01/14/2021 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 5.9k | $102.06 | $601.3k | By Trust | 01/14/2021 |
| 01/13/2021 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 5.7k | $102.07 | $582.7k | By Trust | 01/12/2021 |
| 01/12/2021 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 13.2k | $102.31 | $1.4M | By Trust | 01/12/2021 |
| 09/28/2020 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 2.7k | $95.50 | $253.5k | By Trust | 09/28/2020 |
| 09/28/2020 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 2.3k | $96.20 | $219.4k | By Trust | 09/28/2020 |
| 09/23/2020 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 737 | $95.17 | $70.1k | By Trust | 09/21/2020 |
| 09/23/2020 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 737 | $95.17 | $70.1k | | 09/21/2020 |
| 09/22/2020 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 3.7k | $95.03 | $351.3k | | 09/21/2020 |
| 09/22/2020 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 3.7k | $95.03 | $351.3k | By Trust | 09/21/2020 |
| 09/21/2020 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 631 | $95.11 | $60k | By Trust | 09/21/2020 |
| 09/21/2020 | Simpson Manufacturing Co., Inc. | SSD | Sale | Common Stock | 631 | $95.11 | $60k | | 09/21/2020 |
| 05/20/2020 | RELIANCE STEEL & ALUMINUM CO | RS | Grant | Common Stock | 1.4k | $0.00 | $0 | | 05/20/2020 |
| 02/15/2020 | Simpson Manufacturing Co., Inc. | SSD | Grant | Common Stock | 38.9k | $0.00 | $0 | | 02/15/2020 |
| 02/15/2020 | Simpson Manufacturing Co., Inc. | SSD | Payment of Exercise | Common Stock | 23.1k | $85.25 | $2M | | 02/15/2020 |
| 02/13/2020 | Simpson Manufacturing Co., Inc. | SSD | Grant | Common Stock | 6k | $0.00 | $0 | | 02/13/2020 |
| 05/15/2019 | RELIANCE STEEL & ALUMINUM CO | RS | Grant | Common Stock | 1.5k | $0.00 | $0 | | 05/15/2019 |
|