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Each RSU converts into one share of Common Stock of the Issuer on a one for one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The RSUs vest in equal yearly installments over a period of two (2) years, with the first 1/2 of such RSUs vesting on July 31, 2020 and the remaining 1/2 of such RSUs vesting on July 31, 2021.  Each RSU converts into one share of Common Stock of the Issuer on a one for one basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The RSUs vest in equal yearly installments over a period of two (2) years, with the first 1/2 of such RSUs vesting on July 31, 2020 and the remaining 1/2 of such RSUs vesting on July 31, 2021.  Each RSU converts into one share of Common Stock of the Issuer on a one for one basis."}],"balance_after":53334,"derivative":{"underlying":"Common Stock, par value $.0001 per share","underlying_shares":53334},"source":{"system":"sec-edgar","filing":"0001140361-19-014139","document":"form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1010086/000114036119014139/form4.xml","form_type":"4"}},{"id":3449834,"issuer":{"id":6205,"kind":"organization","name":"SIGA TECHNOLOGIES INC"},"owners":[{"id":60225,"kind":"person","name":"Luckshire Daniel J","position":1,"cik":"0001512677","reported_name":"Luckshire Daniel J","relationship":{"officer":true,"officer_title":"Executive VP & CFO"}}],"security":"Common Stock, par value $.0001 per share","published_at":"2019-08-02T21:27:26.000Z","date":"2019-07-31","kind":"tax_withholding","acquired":false,"shares":12788,"price":5.6,"value":71612.8,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"This Form 4 reports the grant to the Reporting Person of 26,666 shares of common stock of SIGA Technologies (the \"Issuer\") pursuant to the Issuer's 2010 Stock Incentive Plan and the related surrender to the Issuer of 12,788 of such shares to satisfy certain tax withholding obligations of the Issuer associated with such grant.  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