| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 10/02/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1k | $827.00 | $858.4k | | 10/02/2023 |
| 10/02/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 1k | $372.46 | $386.6k | | 10/02/2023 |
| 08/01/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 250 | $744.66 | $186.2k | | 08/01/2023 |
| 07/03/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 250 | $710.09 | $177.5k | | 07/03/2023 |
| 04/03/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 1.1k | $372.46 | $409.7k | | 04/03/2023 |
| 04/03/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1.1k | $818.80 | $900.7k | | 04/03/2023 |
| 01/03/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 1.1k | $372.46 | $409.7k | | 01/03/2023 |
| 01/03/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1.1k | $721.86 | $794k | | 01/03/2023 |
| 12/16/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Grant | Non-Qualified Stock Option (right to buy) | 11k | $726.53 | $8M | | 12/16/2022 |
| 12/16/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Grant | Common Stock | 3k | $0.00 | $0 | | 12/16/2022 |
| 12/12/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 264 | $730.17 | $192.8k | | 12/09/2022 |
| 12/09/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Payment of Exercise | Common Stock | 274 | $753.28 | $206.4k | | 12/09/2022 |
| 12/01/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1.1k | $756.19 | $831.8k | | 12/01/2022 |
| 12/01/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 1.1k | $372.46 | $409.7k | | 12/01/2022 |
| 11/04/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1000 | $727.82 | $727.8k | | 11/04/2022 |
| 11/04/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 1000 | $372.46 | $372.5k | | 11/04/2022 |
| 10/03/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 600 | $705.39 | $423.2k | | 10/03/2022 |
| 10/03/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 500 | $705.39 | $352.7k | | 10/03/2022 |
| 10/03/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 500 | $342.93 | $171.5k | | 10/03/2022 |
| 10/03/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 600 | $372.46 | $223.5k | | 10/03/2022 |
| 09/01/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1.1k | $577.62 | $635.4k | | 09/01/2022 |
| 09/01/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 1.1k | $342.93 | $377.2k | | 09/01/2022 |
| 08/01/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1.1k | $581.53 | $639.7k | | 08/01/2022 |
| 08/01/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 1.1k | $342.93 | $377.2k | | 08/01/2022 |
| 07/01/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 1.1k | $342.93 | $377.2k | | 07/01/2022 |
| 07/01/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1.1k | $587.76 | $646.5k | | 07/01/2022 |
| 06/01/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1.1k | $669.51 | $736.5k | | 06/01/2022 |
| 06/01/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 1.1k | $342.93 | $377.2k | | 06/01/2022 |
| 05/02/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1.1k | $656.97 | $722.7k | | 05/02/2022 |
| 05/02/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 1.1k | $342.93 | $377.2k | | 05/02/2022 |
| 04/01/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1000 | $701.82 | $701.8k | | 04/01/2022 |
| 04/01/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 1000 | $342.93 | $342.9k | | 04/01/2022 |
| 03/01/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1000 | $615.39 | $615.4k | | 03/01/2022 |
| 03/01/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 1000 | $342.93 | $342.9k | | 03/01/2022 |
| 02/01/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 1000 | $342.93 | $342.9k | | 02/01/2022 |
|