SIGA TECHNOLOGIES INC

Ticker: SIGA CUSIP: 826917106 Class: Common Stock

Optiver Holding B.V.'s Holding History (CIK: 0001859606)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 450 Value ($000) $3 Avg Close $7.11 Range $5.71 - $9.29
Q3 2025
Shares 450 Value ($000) $4 Avg Close $7.99 Range $6.34 - $9.62