SIGA TECHNOLOGIES INC (SIGA) Stock Institutional Trading Activity


SIGA TECHNOLOGIES INC (SIGA) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Renaissance Technologies LLC and Oaktree Capital Management. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q2 2014Renaissance Technologies LLCBuy141,005286,205$807
Q1 2014Renaissance Technologies LLCBuy104,939145,200$450
Q4 2013Renaissance Technologies LLCBuy40,26140,261$132

Frequently asked questions about SIGA activity

  • Which institutional owners are buying SIGA?

    Institutional owners buying SIGA include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in SIGA activity?

    "Buy" means an investor increased their reported position in SIGA compared to the prior reporting period. This reflects growing exposure to SIGA TECHNOLOGIES INC (SIGA) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in SIGA increasing?

    Institutional interest in SIGA can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.