| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 08/12/2022 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock | 14.3k | $36.76 | $524.3k | | 08/11/2022 |
| 08/12/2022 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock | 2.1k | $35.38 | $73.1k | | 08/11/2022 |
| 08/12/2022 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock | 1.2k | $34.62 | $42.3k | | 08/11/2022 |
| 08/12/2022 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option (Right to Buy) | 3.9k | $9.02 | $34.9k | | 08/11/2022 |
| 08/12/2022 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option (Right to Buy) | 13.7k | $2.78 | $38k | | 08/11/2022 |
| 08/11/2022 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock | 2.5k | $37.04 | $90.9k | | 08/11/2022 |
| 08/11/2022 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option (Right to Buy) | 2.5k | $9.02 | $22.1k | | 08/11/2022 |
| 06/16/2022 | Celldex Therapeutics, Inc. | CLDX | Grant | | 85k | $22.48 | $1.9M | | 06/16/2022 |
| 12/23/2021 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option (Right to Buy) | 3.8k | $2.78 | $10.4k | | 12/23/2021 |
| 12/23/2021 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option (Right to Buy) | 3.2k | $9.02 | $29.3k | | 12/23/2021 |
| 12/23/2021 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock | 9.5k | $42.00 | $399k | | 12/23/2021 |
| 11/15/2021 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option (Right to Buy) | 3.8k | $2.78 | $10.4k | | 11/15/2021 |
| 11/15/2021 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option (Right to Buy) | 3.2k | $9.02 | $29.3k | | 11/15/2021 |
| 11/15/2021 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock | 2k | $42.27 | $86.6k | | 11/15/2021 |
| 11/15/2021 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock | 7.5k | $43.92 | $327.3k | | 11/15/2021 |
| 08/10/2021 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option | 11.1k | $2.78 | $30.8k | | 08/10/2021 |
| 08/10/2021 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option | 10.3k | $0.00 | $0 | | 08/10/2021 |
| 08/10/2021 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock | 682 | $45.25 | $30.9k | | 08/10/2021 |
| 08/10/2021 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock | 2.1k | $45.25 | $93k | | 08/10/2021 |
| 08/10/2021 | Celldex Therapeutics, Inc. | CLDX | Exercise | Common Stock | 10.3k | $9.02 | $92.9k | | 08/10/2021 |
| 06/17/2021 | Celldex Therapeutics, Inc. | CLDX | Grant | | 85k | $28.00 | $2.4M | | 06/17/2021 |
| 06/18/2020 | Celldex Therapeutics, Inc. | CLDX | Grant | | 105.6k | $10.38 | $1.1M | | 06/18/2020 |
| 06/09/2020 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock, par value $0.001 per share | 9.8k | $3.05 | $29.7k | | 06/09/2020 |
| 06/19/2019 | Celldex Therapeutics, Inc. | CLDX | Grant | | 43k | $2.78 | $119.5k | | 06/19/2019 |
| 06/13/2018 | Celldex Therapeutics, Inc. | CLDX | Grant | | 395k | $0.60 | $237.4k | | 06/13/2018 |