RESEARCH FRONTIERS INC (REFR) Institutional Ownership Changes & 13F Activity

RESEARCH FRONTIERS INC (REFR) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC and Sequoia Financial Advisors.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCSell-9,98268,300$62,836
Q4 2025Renaissance Technologies LLCSell-9,81878,282$102,549
Q3 2025Renaissance Technologies LLCBuy1,40088,100$140,079
Q2 2025Renaissance Technologies LLCSell-13,80086,700$142,188
Q1 2025Renaissance Technologies LLCBuy2,431100,500$113,565
Q4 2024Renaissance Technologies LLCBuy24,96998,069$167,698
Q3 2024Renaissance Technologies LLCSell-10,70073,100$160,089
Q2 2024Renaissance Technologies LLCBuy6,65683,800$154,192
Q1 2024Renaissance Technologies LLCSell-17,25677,144$100
Q1 2024Sequoia Financial AdvisorsBuy12,85012,850$16,705
Q4 2023Renaissance Technologies LLCBuy70,50094,400$95
Q3 2023Renaissance Technologies LLCSell-5,10023,900$26
Q2 2023Renaissance Technologies LLCSell-19,21429,000$46
Q2 2021Renaissance Technologies LLCBuy28,32548,214$114
Q1 2021Renaissance Technologies LLCBuy1,76619,889$56
Q1 2019Renaissance Technologies LLCSell-16,98118,123$39
Q4 2018Renaissance Technologies LLCBuy2,80435,104$55
Q3 2018Renaissance Technologies LLCBuy5,80032,300$51
Q1 2018Renaissance Technologies LLCSell-6,60026,500$26
Q4 2017Renaissance Technologies LLCBuy22,70033,100$34
Q3 2017Renaissance Technologies LLCSell-6,50010,400$12
Q4 2013Renaissance Technologies LLCBuy16,90016,900$98

Frequently asked questions about REFR activity

  • Which institutional owners are buying REFR?

    Institutional owners buying REFR 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 REFR activity?

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

  • Is institutional interest in REFR increasing?

    Institutional interest in REFR 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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