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
Q4 2025Renaissance Technologies LLCBuy69,600378,100$2,310,191
Q3 2025Renaissance Technologies LLCSell-290,412308,500$2,822,775
Q2 2025Renaissance Technologies LLCSell-28,624598,912$3,904,906
Q1 2025Renaissance Technologies LLCBuy210,100627,536$3,438,897
Q4 2024Renaissance Technologies LLCBuy293,836417,436$2,508,790
Q3 2024Renaissance Technologies LLCBuy30,664123,600$834,300
Q2 2024Renaissance Technologies LLCBuy74,50092,936$705,384
Q1 2024Renaissance Technologies LLCSell-96418,436$158
Q3 2023Renaissance Technologies LLCSell-36,73619,400$102
Q2 2023Renaissance Technologies LLCSell-648,50056,136$283
Q1 2023Renaissance Technologies LLCSell-343,690704,636$4,052
Q4 2022Renaissance Technologies LLCSell-1,304,9211,048,326$7,716
Q3 2022Renaissance Technologies LLCBuy1,715,7362,353,247$24,238
Q2 2022Renaissance Technologies LLCSell-47,803637,511$7,382
Q1 2022Renaissance Technologies LLCSell-208,190685,314$4,859
Q4 2021Renaissance Technologies LLCBuy276,814893,504$6,719
Q3 2021Renaissance Technologies LLCSell-415,327616,690$4,557
Q2 2021Renaissance Technologies LLCBuy265,0031,032,017$6,481
Q1 2021Renaissance Technologies LLCBuy197,700767,014$4,986
Q4 2020Renaissance Technologies LLCSell-6,500569,314$4,139
Q3 2020Renaissance Technologies LLCBuy138,800575,814$3,956
Q2 2020Renaissance Technologies LLCBuy254,502437,014$2,583
Q1 2020Renaissance Technologies LLCSell-156,306182,512$872
Q4 2019Renaissance Technologies LLCBuy127,218338,818$1,616
Q3 2019Renaissance Technologies LLCBuy124,300211,600$1,083
Q2 2019Renaissance Technologies LLCSell-13,10087,300$496
Q1 2019Renaissance Technologies LLCSell-185,805100,400$603
Q1 2019Oaktree Capital ManagementSell-443,104159,782$959
Q3 2018Oaktree Capital ManagementBuy527,886602,886$4,155
Q2 2018Oaktree Capital ManagementBuy75,00075,000$446

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.