| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 12/07/2022 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option (right to buy) | 16.9k | $2.78 | $46.9k | | 12/07/2022 |
| 12/07/2022 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock, par value $0.001 per share | 16.9k | $36.93 | $622.6k | | 12/07/2022 |
| 06/16/2022 | Celldex Therapeutics, Inc. | CLDX | Grant | | 91k | $22.48 | $2M | | 06/16/2022 |
| 06/17/2021 | Celldex Therapeutics, Inc. | CLDX | Grant | | 91k | $28.00 | $2.5M | | 06/17/2021 |
| 06/18/2020 | Celldex Therapeutics, Inc. | CLDX | Grant | | 108k | $10.38 | $1.1M | | 06/18/2020 |
| 06/09/2020 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock, par value $0.001 per share | 5k | $2.99 | $15k | | 06/09/2020 |
| 06/19/2019 | Celldex Therapeutics, Inc. | CLDX | Grant | | 60k | $2.78 | $166.8k | | 06/19/2019 |
| 06/15/2018 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock, par value $0.001 per share | 16.5k | $0.59 | $9.8k | | 06/15/2018 |
| 06/13/2018 | Celldex Therapeutics, Inc. | CLDX | Grant | | 390k | $0.60 | $234.4k | | 06/13/2018 |
| 06/15/2017 | Celldex Therapeutics, Inc. | CLDX | Grant | | 162k | $2.32 | $375.8k | | 06/15/2017 |
| 07/01/2013 | Celldex Therapeutics, Inc. | CLDX | Grant | Incentive Stock Option | 115k | $16.36 | $1.9M | | 07/01/2013 |
| 08/11/2011 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 5k | $2.50 | $12.5k | | 08/11/2011 |
| 08/05/2011 | Celldex Therapeutics, Inc. | CLDX | Grant | Incentive Stock Option | 99k | $2.80 | $277.2k | | 08/05/2011 |