| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 05/11/2023 | SIGA TECHNOLOGIES INC | SIGA | Grant | Restricted Stock Units | 64.5k | $0.00 | $0 | | 05/11/2023 |
| 06/07/2019 | SIGA TECHNOLOGIES INC | SIGA | Sale | Common Stock, Par Value $.0001 Per Share | 16k | $5.58 | $89.3k | | 06/05/2019 |
| 06/06/2019 | SIGA TECHNOLOGIES INC | SIGA | Sale | Common Stock, Par Value $.0001 Per Share | 17k | $5.57 | $94.7k | | 06/05/2019 |
| 06/05/2019 | SIGA TECHNOLOGIES INC | SIGA | Sale | Common Stock, Par Value $.0001 Per Share | 17k | $5.68 | $96.6k | | 06/05/2019 |
| 11/13/2018 | SIGA TECHNOLOGIES INC | SIGA | Sale | Common Stock, Par Value $.0001 Per Share | 31.1k | $5.29 | $164.5k | | 11/12/2018 |
| 11/12/2018 | SIGA TECHNOLOGIES INC | SIGA | Sale | Common Stock, Par Value $.0001 Per Share | 18.9k | $4.96 | $93.7k | | 11/12/2018 |
| 09/11/2018 | SIGA TECHNOLOGIES INC | SIGA | Exercise | Restricted Stock Units | 25k | $0.00 | $0 | | 09/11/2018 |
| 09/11/2018 | SIGA TECHNOLOGIES INC | SIGA | Exercise | Stock Option (Right to buy) | 50k | $4.70 | $235k | | 09/11/2018 |
| 09/11/2018 | SIGA TECHNOLOGIES INC | SIGA | Exercise | Stock-Settled Stock Appreciation Rights | 37.5k | $3.53 | $132.4k | | 09/11/2018 |
| 09/11/2018 | SIGA TECHNOLOGIES INC | SIGA | Payment of Exercise | Common Stock, par value $.0001 per share | 12.2k | $7.16 | $87.2k | | 09/11/2018 |
| 09/11/2018 | SIGA TECHNOLOGIES INC | SIGA | Payment of Exercise | Common Stock, par value $.0001 per share | 32.8k | $7.16 | $235k | | 09/11/2018 |
| 09/11/2018 | SIGA TECHNOLOGIES INC | SIGA | Payment of Exercise | Common Stock, par value $.0001 per share | 8.9k | $7.16 | $63.4k | | 09/11/2018 |
| 11/10/2017 | SIGA TECHNOLOGIES INC | SIGA | Exercise | Stock-Settled Stock Appreciation Rights | 337.5k | $3.53 | $1.2M | | 11/10/2017 |
| 11/10/2017 | SIGA TECHNOLOGIES INC | SIGA | Payment of Exercise | Common Stock, par value $.0001 per share | 29.4k | $4.60 | $135.4k | | 11/10/2017 |
| 06/08/2017 | SIGA TECHNOLOGIES INC | SIGA | Grant | Restricted Stock Units | 25k | $0.00 | $0 | | 06/08/2017 |
| 06/08/2017 | SIGA TECHNOLOGIES INC | SIGA | Disposition | Stock Option (Right to buy) | 200k | $3.10 | $620k | | 06/08/2017 |
| 12/08/2016 | SIGA TECHNOLOGIES INC | SIGA | Exercise | Restricted Stock Units | 25k | $0.00 | $0 | | 12/08/2016 |
| 12/08/2016 | SIGA TECHNOLOGIES INC | SIGA | Payment of Exercise | Common Stock, par value $.0001 per share | 20.3k | $3.13 | $63.5k | | 12/08/2016 |
| 02/28/2014 | SIGA TECHNOLOGIES INC | SIGA | Payment of Exercise | Common Stock, par value $.0001 per share | 9k | $3.21 | $28.9k | | 02/28/2014 |
| 02/28/2014 | SIGA TECHNOLOGIES INC | SIGA | Exercise | Restricted Stock Units | 25k | $0.00 | $0 | | 02/28/2014 |
| 01/03/2014 | SIGA TECHNOLOGIES INC | SIGA | Payment of Exercise | Common Stock, par value $.0001 per share | 10.4k | $3.35 | $34.9k | | 01/03/2014 |
| 01/03/2014 | SIGA TECHNOLOGIES INC | SIGA | Exercise | Restricted Stock Units | 25k | $0.00 | $0 | | 01/03/2014 |
| 01/03/2014 | SIGA TECHNOLOGIES INC | SIGA | Grant | Restricted Stock Units | 75k | $0.00 | $0 | | 01/03/2014 |
| 12/31/2013 | SIGA TECHNOLOGIES INC | SIGA | Other (disposition) | Common Stock, par value $.0001 per share | 40.8k | $0.00 | $0 | | 12/31/2013 |
| 12/17/2013 | SIGA TECHNOLOGIES INC | SIGA | Payment of Exercise | Common Stock, par value $.0001 per share | 68.4k | $3.07 | $210k | | 12/17/2013 |
| 12/17/2013 | SIGA TECHNOLOGIES INC | SIGA | Exercise | Stock Option (Right to Buy) | 150k | $1.40 | $210k | | 12/17/2013 |
| 01/03/2013 | SIGA TECHNOLOGIES INC | SIGA | Grant | Restricted Stock Units | 75k | $0.00 | $0 | | 01/03/2013 |
| 03/30/2010 | SIGA TECHNOLOGIES INC | SIGA | Sale | Common Stock, par value $.0001 per share | 58k | $6.51 | $377.5k | | 03/29/2010 |
| 03/29/2010 | SIGA TECHNOLOGIES INC | SIGA | Sale | Common Stock, par value $.0001 per share | 67k | $6.78 | $454.4k | | 03/29/2010 |