SYNDAX PHARMACEUTICALS INC (SNDX) Institutional Ownership Changes & 13F Activity

SYNDAX PHARMACEUTICALS INC (SNDX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC and Torray Fund.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCSell-46,600498,200$11,637,952
Q1 2026Torray FundBuy7,066104,868$2,449,716
Q4 2025Renaissance Technologies LLCSell-315,700544,800$11,446,248
Q4 2025Torray FundBuy97,80297,802$2,054,820
Q3 2025Renaissance Technologies LLCBuy22,800860,500$13,238,793
Q2 2025Renaissance Technologies LLCBuy156,273837,700$7,845,061
Q1 2025Renaissance Technologies LLCBuy462681,427$8,371,331
Q4 2024Renaissance Technologies LLCBuy466,665680,965$9,002,357
Q2 2024Renaissance Technologies LLCBuy135,200214,300$4,399,579
Q1 2024Renaissance Technologies LLCSell-139,20079,100$1,883
Q3 2023Renaissance Technologies LLCBuy137,100218,300$3,170
Q4 2022Renaissance Technologies LLCSell-100,90081,200$2,067
Q1 2022Renaissance Technologies LLCBuy87,400182,100$3,165
Q2 2020Renaissance Technologies LLCSell-392,90094,700$1,403
Q1 2020Renaissance Technologies LLCSell-7,900487,600$5,349
Q4 2019Renaissance Technologies LLCSell-1,500495,500$4,350
Q3 2019Renaissance Technologies LLCBuy65,100497,000$3,713
Q2 2019Renaissance Technologies LLCBuy117,300431,900$4,021
Q1 2019Renaissance Technologies LLCBuy85,500314,600$1,652
Q4 2018Renaissance Technologies LLCSell-50,200229,100$1,019
Q3 2018Renaissance Technologies LLCBuy226,800279,300$2,257
Q1 2018Renaissance Technologies LLCBuy26,80052,500$747
Q4 2017Renaissance Technologies LLCBuy25,70025,700$225

Frequently asked questions about SNDX activity

  • Which institutional owners are buying SNDX?

    Institutional owners buying SNDX 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 SNDX activity?

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

  • Is institutional interest in SNDX increasing?

    Institutional interest in SNDX 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.

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