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Siga Technologies

Siga Technologies (NASDAQ: SIGA) insider transactions

In the twelve months to 10 November 2026, executives and directors of Siga Technologies reported no open-market sales and no open-market purchases, according to the Form 4 filings they submitted to the SEC.

Latest transactions

The 20 most recent transactions in Siga Technologies shares reported on Form 4
DateInsiderRoleTransactionSharesPriceHeld afterFiling
9 June 2026Nabel Gary J.DirectorOption exercise+24,116—80,989Form 4
9 June 2026Nabel Gary J.DirectorReturned to the company−7,235$4.3973,754Form 4
9 June 2026Durnan Jaymie ADirectorOption exercise+24,116—95,989Form 4
9 June 2026Durnan Jaymie ADirectorReturned to the company−7,235$4.3988,754Form 4
9 June 2026Nemirovsky JulianDirectorOption exercise+24,116—80,989Form 4
9 June 2026Nemirovsky JulianDirectorReturned to the company−7,235$4.3973,754Form 4
9 June 2026Phillips Holly L.DirectorOption exercise+24,116—80,989Form 4
9 June 2026Phillips Holly L.DirectorReturned to the company−7,235$4.3973,754Form 4
9 June 2026Ford Harold Eugene Jr.DirectorOption exercise+24,116—54,773Form 4
9 June 2026Ford Harold Eugene Jr.DirectorReturned to the company−7,235$4.3947,538Form 4
9 June 2026Keane John MDirectorOption exercise+24,116—24,116Form 4
9 June 2026Keane John MDirectorReturned to the company−7,235$4.3916,881Form 4
9 June 2026Marshall Joseph W IIIDirectorOption exercise+24,116—253,758Form 4
9 June 2026Marshall Joseph W IIIDirectorReturned to the company−7,235$4.39246,523Form 4
25 March 2026Miller Larry R.General CounselOption exercise+6,920—55,438Form 4
25 March 2026Miller Larry R.General CounselShares withheld for tax−3,526$4.9951,912Form 4
13 March 2026Nguyen DiemChief Executive OfficerOption exercise+85,045—185,796Form 4
13 March 2026Nguyen DiemChief Executive OfficerShares withheld for tax−47,029$5.26138,767Form 4
13 March 2026Miller Larry R.General CounselOption exercise+21,261—59,705Form 4
13 March 2026Miller Larry R.General CounselShares withheld for tax−11,187$5.2648,518Form 4

Names appear as in the filing, surname first. A dash in the price column means the filing reports none, as in grants and gifts.

How to read the table

Only open-market purchases and sales are trades the insider chose to make at the market price, and they are the ones counted in the summary above. Grants, option exercises and shares withheld for tax come from pay plans. A sale marked as a 10b5-1 plan was scheduled in advance under a written plan.

Where each row comes from

From the Form 4 that each executive, director or large shareholder must file with the SEC within two business days of a transaction, read up to 10 November 2026. Each row links to its filing on EDGAR. Only transactions in shares are listed, not derivatives, and amended filings are left out. The accounts of the company are on the Siga Technologies page; the method, in data sources.

Information prepared from the Form 4 filings submitted to the SEC, for information purposes only. It is not financial advice or a recommendation to buy or sell. Updated on 12 November 2026.