| Delaware | 0-23047 | 13-3864870 |
| (State or other jurisdiction of incorporation or organization) | (Commission file number) | (I.R.S. employer identification no.) |
| 31 East 62nd Street New York, New York | 10065 | |
| (Address of principal executive offices) | (Zip code) |
| ☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |
| ☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |
| ☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
| ☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) |
| Title of each class | Trading Symbol(s) | Name of each exchange on which registered |
| common stock, $.0001 par value | SIGA | The Nasdaq Global Market |
| Item 8.01 | Other Events. |
| SIGA TECHNOLOGIES, INC. | ||
| By: | /s/ Daniel J. Luckshire | |
| Name: | Daniel J. Luckshire | |
| Title: | Chief Financial Officer | |
| Date: March 26, 2026 | ||