| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 08/18/2022 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock | 1.4k | $36.38 | $49.3k | | 08/17/2022 |
| 08/18/2022 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option | 1.4k | $9.02 | $12.2k | | 08/17/2022 |
| 08/17/2022 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option | 31.3k | $2.78 | $87k | | 08/17/2022 |
| 08/17/2022 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock | 31.3k | $36.73 | $1.2M | | 08/17/2022 |
| 06/16/2022 | Celldex Therapeutics, Inc. | CLDX | Grant | | 73k | $22.48 | $1.6M | | 06/16/2022 |
| 12/08/2021 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock | 7.3k | $40.00 | $292.9k | | 12/08/2021 |
| 12/08/2021 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option (Right to Buy) | 1.9k | $9.02 | $16.7k | | 12/08/2021 |
| 12/08/2021 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option (Right to Buy) | 5.5k | $10.38 | $56.7k | | 12/08/2021 |
| 11/01/2021 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock | 901 | $43.06 | $38.8k | | 11/01/2021 |
| 11/01/2021 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock | 4.3k | $44.11 | $189.8k | | 11/01/2021 |
| 11/01/2021 | Celldex Therapeutics, Inc. | CLDX | Exercise | Common Stock | 5k | $9.02 | $45.2k | | 11/01/2021 |
| 11/01/2021 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock | 2.1k | $41.62 | $88.2k | | 11/01/2021 |
| 11/01/2021 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option (Right to Buy) | 5k | $0.00 | $0 | | 11/01/2021 |
| 11/01/2021 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option (Right to Buy) | 938 | $2.78 | $2.6k | | 11/01/2021 |
| 06/17/2021 | Celldex Therapeutics, Inc. | CLDX | Grant | | 56k | $28.00 | $1.6M | | 06/17/2021 |
| 06/18/2020 | Celldex Therapeutics, Inc. | CLDX | Grant | | 84k | $10.38 | $871.9k | | 06/18/2020 |
| 06/10/2020 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock, par value $0.001 per share | 1k | $4.83 | $5.1k | | 06/10/2020 |
| 06/19/2019 | Celldex Therapeutics, Inc. | CLDX | Grant | | 43k | $2.78 | $119.5k | | 06/19/2019 |
| 06/13/2018 | Celldex Therapeutics, Inc. | CLDX | Grant | | 275k | $0.60 | $165.3k | | 06/13/2018 |
| 06/15/2017 | Celldex Therapeutics, Inc. | CLDX | Grant | | 65k | $2.32 | $150.8k | | 06/15/2017 |