Nguyen Diem bought SIGA

January 27, 2026 · Form 4 insider transaction

Nguyen Diem bought 55,902 shares of SIGA TECHNOLOGIES INC at $0.00 per share, a transaction worth N/A. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 1 day after the transaction.

Direction

Acquired (buy-side)

55,902

Price

$0.00

Total value

N/A

InsiderNguyen Diem

RoleOfficer, Director

CompanySIGA TECHNOLOGIES INC (SIGA)

SecurityCommon Stock, par value $.0001 per share

Transaction codeM — Option exercise

Transaction dateJanuary 27, 2026

Filing dateJanuary 28, 2026

Shares owned after123,555

OwnershipDirect

10b5-1 planNo

AmendedNo

Footnotes

Represents the acquisition of Common Stock from the vesting of one-third of the restricted stock units ("RSUs") granted on January 27, 2024.

View the original Form 4 on SEC EDGAR