| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 08/24/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 138 | $835.67 | $115.3k | | 08/23/2023 |
| 08/24/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 625 | $836.32 | $522.7k | | 08/23/2023 |
| 08/24/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 300 | $837.53 | $251.3k | | 08/23/2023 |
| 08/24/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 667 | $838.37 | $559.2k | | 08/23/2023 |
| 08/24/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 148 | $839.28 | $124.2k | | 08/23/2023 |
| 08/24/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 46 | $840.74 | $38.7k | | 08/23/2023 |
| 08/24/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 363 | $841.15 | $305.3k | | 08/23/2023 |
| 08/24/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 617 | $842.66 | $519.9k | | 08/23/2023 |
| 08/24/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 759 | $843.31 | $640.1k | | 08/23/2023 |
| 08/24/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 2.5k | $844.27 | $2.1M | | 08/23/2023 |
| 08/23/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 23.1k | $381.40 | $8.8M | | 08/23/2023 |
| 08/23/2023 | REGENERON PHARMACEUTICALS, INC. | REGN | Payment of Exercise | Common Stock | 16.9k | $842.66 | $14.3M | | 08/23/2023 |
| 12/16/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Grant | Common Stock | 3.8k | $0.00 | $0 | | 12/16/2022 |
| 12/16/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Grant | Non-Qualified Stock Option (right to buy) | 14k | $726.53 | $10.2M | | 12/16/2022 |
| 12/09/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Payment of Exercise | Common Stock | 492 | $753.28 | $370.6k | | 12/09/2022 |
| 11/23/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1k | $741.34 | $742.8k | | 11/22/2022 |
| 11/23/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 101 | $743.66 | $75.1k | | 11/22/2022 |
| 11/23/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 780 | $744.56 | $580.8k | | 11/22/2022 |
| 11/23/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 256 | $745.56 | $190.9k | | 11/22/2022 |
| 11/23/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1.2k | $746.42 | $868.8k | | 11/22/2022 |
| 11/23/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 629 | $747.28 | $470k | | 11/22/2022 |
| 11/23/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1 | $748.17 | $748.2 | | 11/22/2022 |
| 11/23/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 99 | $742.58 | $73.5k | | 11/22/2022 |
| 11/23/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 686 | $735.57 | $504.6k | | 11/22/2022 |
| 11/23/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1k | $736.46 | $740.1k | | 11/22/2022 |
| 11/23/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 373 | $737.37 | $275k | | 11/22/2022 |
| 11/23/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 944 | $738.57 | $697.2k | | 11/22/2022 |
| 11/23/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 3.1k | $739.48 | $2.3M | | 11/22/2022 |
| 11/23/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1.8k | $740.29 | $1.3M | | 11/22/2022 |
| 11/22/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Payment of Exercise | Common Stock | 38k | $741.81 | $28.2M | | 11/22/2022 |
| 11/22/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Exercise | Non-Qualified Stock Option (right to buy) | 50k | $378.98 | $18.9M | | 11/22/2022 |
| 11/07/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 100 | $742.79 | $74.3k | | 11/04/2022 |
| 11/07/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1.1k | $743.39 | $817.7k | | 11/04/2022 |
| 11/07/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 2k | $744.61 | $1.5M | | 11/04/2022 |
| 11/07/2022 | REGENERON PHARMACEUTICALS, INC. | REGN | Sale | Common Stock | 1.5k | $745.51 | $1.1M | | 11/04/2022 |
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