| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 08/15/2022 | Celldex Therapeutics, Inc. | CLDX | Exercise | Common Stock | 45k | $9.02 | $405.7k | | 08/15/2022 |
| 08/15/2022 | Celldex Therapeutics, Inc. | CLDX | Sale | Common Stock | 120k | $37.66 | $4.5M | | 08/15/2022 |
| 08/15/2022 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option | 75k | $2.78 | $208.5k | | 08/15/2022 |
| 08/15/2022 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option | 45k | $0.00 | $0 | | 08/15/2022 |
| 06/16/2022 | Celldex Therapeutics, Inc. | CLDX | Grant | | 250k | $22.48 | $5.6M | | 06/16/2022 |
| 08/05/2021 | Celldex Therapeutics, Inc. | CLDX | Exercise | Common Stock | 3.5k | $42.00 | $148.6k | | 08/05/2021 |
| 08/05/2021 | Celldex Therapeutics, Inc. | CLDX | Exercise | Incentive Stock Option | 3.5k | $0.00 | $0 | | 08/05/2021 |
| 06/17/2021 | Celldex Therapeutics, Inc. | CLDX | Grant | | 224k | $28.00 | $6.3M | | 06/17/2021 |
| 06/18/2020 | Celldex Therapeutics, Inc. | CLDX | Grant | | 245k | $10.38 | $2.5M | | 06/18/2020 |
| 06/09/2020 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock, par value $0.001 per share | 15k | $3.06 | $45.9k | | 06/09/2020 |
| 06/19/2019 | Celldex Therapeutics, Inc. | CLDX | Grant | | 100k | $2.78 | $278k | | 06/19/2019 |
| 06/13/2018 | Celldex Therapeutics, Inc. | CLDX | Grant | | 1.1M | $0.60 | $646.2k | | 06/13/2018 |
| 06/15/2017 | Celldex Therapeutics, Inc. | CLDX | Grant | | 475k | $2.32 | $1.1M | | 06/15/2017 |
| 07/01/2013 | Celldex Therapeutics, Inc. | CLDX | Acquisition (small) | Common Stock | 500 | $5.95 | $3k | | 07/01/2013 |
| 07/01/2013 | Celldex Therapeutics, Inc. | CLDX | Grant | Incentive Stock Option | 280k | $16.36 | $4.6M | | 07/01/2013 |
| 09/12/2012 | Celldex Therapeutics, Inc. | CLDX | Grant | Incentive Stock Option | 280k | $5.69 | $1.6M | | 09/12/2012 |
| 08/09/2011 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 5k | $2.38 | $11.9k | | 08/09/2011 |
| 08/09/2011 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 5k | $2.42 | $12.1k | | 08/09/2011 |
| 08/09/2011 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 5k | $2.44 | $12.2k | | 08/09/2011 |
| 09/10/2010 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 319 | $3.46 | $1.1k | | 09/10/2010 |
| 09/10/2010 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 1.4k | $3.46 | $4.8k | | 09/10/2010 |
| 09/10/2010 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 181 | $3.46 | $625.8 | | 09/10/2010 |
| 09/10/2010 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 1.5k | $3.48 | $5.2k | | 09/10/2010 |
| 09/10/2010 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 200 | $3.48 | $696 | | 09/10/2010 |
| 09/10/2010 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 100 | $3.48 | $347.9 | | 09/10/2010 |
| 09/10/2010 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 400 | $3.48 | $1.4k | | 09/10/2010 |
| 09/10/2010 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 100 | $3.48 | $347.9 | | 09/10/2010 |
| 09/10/2010 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 1.6k | $3.48 | $5.6k | | 09/10/2010 |
| 09/10/2010 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 200 | $3.47 | $694 | | 09/10/2010 |
| 09/10/2010 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 200 | $3.46 | $692 | | 09/10/2010 |
| 09/10/2010 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 500 | $3.46 | $1.7k | | 09/10/2010 |
| 09/10/2010 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 300 | $3.46 | $1k | | 09/10/2010 |
| 09/10/2010 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 2.3k | $3.41 | $7.8k | | 09/10/2010 |
| 09/10/2010 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 200 | $3.41 | $681.8 | | 09/10/2010 |
| 09/10/2010 | Celldex Therapeutics, Inc. | CLDX | Purchase | Common Stock | 2.5k | $3.43 | $8.6k | | 09/10/2010 |