| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 08/23/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 223 | $844.00 | $188.2k | | 08/23/2023 |
| 02/06/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 51 | $783.05 | $39.9k | | 02/03/2023 |
| 02/06/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 113 | $784.27 | $88.6k | | 02/03/2023 |
| 02/06/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 78 | $785.88 | $61.3k | | 02/03/2023 |
| 02/06/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 85 | $786.45 | $66.8k | | 02/03/2023 |
| 02/06/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 58 | $787.47 | $45.7k | | 02/03/2023 |
| 02/06/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 99 | $788.62 | $78.1k | | 02/03/2023 |
| 02/06/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 49 | $789.05 | $38.7k | | 02/03/2023 |
| 02/06/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 10 | $790.41 | $7.9k | | 02/03/2023 |
| 02/06/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 3 | $791.00 | $2.4k | | 02/03/2023 |
| 02/06/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 2 | $793.33 | $1.6k | | 02/03/2023 |
| 02/06/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 99 | $794.61 | $78.7k | | 02/03/2023 |
| 02/06/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 59 | $795.41 | $46.9k | | 02/03/2023 |
| 02/06/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 18 | $796.43 | $14.3k | | 02/03/2023 |
| 02/06/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 28 | $797.43 | $22.3k | | 02/03/2023 |
| 02/03/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 3k | $381.92 | $1.1M | | 02/03/2023 |
| 02/03/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 739 | $764.50 | $565k | | 02/03/2023 |
| 02/03/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Payment of Exercise | Common Stock | 2.2k | $774.29 | $1.7M | | 02/03/2023 |
| 12/16/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Grant | Common Stock | 3.9k | $0.00 | $0 | | 12/16/2022 |
| 12/16/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Grant | Non-Qualified Stock Option (right to buy) | 14.2k | $726.53 | $10.3M | | 12/16/2022 |
| 12/09/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Payment of Exercise | Common Stock | 492 | $753.28 | $370.6k | | 12/08/2022 |
| 12/08/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 3k | $381.92 | $1.1M | | 12/08/2022 |
| 12/08/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Payment of Exercise | Common Stock | 2.3k | $768.54 | $1.7M | | 12/08/2022 |
| 10/17/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 358 | $739.50 | $264.7k | | 10/14/2022 |
| 10/14/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 1.5k | $381.92 | $572.9k | | 10/14/2022 |
| 10/14/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Payment of Exercise | Common Stock | 1.1k | $743.78 | $849.4k | | 10/14/2022 |
| 04/11/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 68 | $738.63 | $50.2k | | 04/07/2022 |
| 04/11/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 37 | $731.60 | $27.1k | | 04/07/2022 |
| 04/11/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 22 | $732.56 | $16.1k | | 04/07/2022 |
| 04/11/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1.2k | $733.52 | $899.3k | | 04/07/2022 |
| 04/11/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 75 | $734.53 | $55.1k | | 04/07/2022 |
| 04/11/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 149 | $735.36 | $109.6k | | 04/07/2022 |
| 04/11/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 189 | $736.61 | $139.2k | | 04/07/2022 |
| 04/11/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 22 | $737.89 | $16.2k | | 04/07/2022 |
| 04/11/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 74 | $729.76 | $54k | | 04/07/2022 |
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