FUEL TECH INC (FTEK) Stock Institutional Trading Activity


FUEL TECH INC (FTEK) 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 Sequoia Financial Advisors. 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 LLCBuy249,0891,147,995$1,790,872
Q3 2025Renaissance Technologies LLCBuy46,500898,906$2,696,718
Q2 2025Renaissance Technologies LLCSell-104,300852,406$2,148,063
Q1 2025Renaissance Technologies LLCSell-82,903956,706$1,004,541
Q4 2024Renaissance Technologies LLCBuy138,1691,039,609$1,091,589
Q3 2024Renaissance Technologies LLCBuy26,822901,440$946,512
Q2 2024Renaissance Technologies LLCBuy44,512874,618$935,841
Q1 2024Renaissance Technologies LLCSell-30,119830,106$1,004
Q4 2023Renaissance Technologies LLCBuy53,909860,225$903
Q3 2023Renaissance Technologies LLCSell-3,172806,316$951
Q2 2023Renaissance Technologies LLCSell-55,456809,488$1,073
Q1 2023Renaissance Technologies LLCBuy42,357864,944$1,107
Q4 2022Renaissance Technologies LLCBuy46,171822,587$1,049
Q3 2022Renaissance Technologies LLCBuy7,100776,416$908
Q2 2022Renaissance Technologies LLCSell-71,700769,316$954
Q1 2022Renaissance Technologies LLCBuy33,691841,016$1,219
Q4 2021Renaissance Technologies LLCSell-49,540807,325$1,130
Q3 2021Renaissance Technologies LLCSell-632,600856,865$1,491
Q2 2021Renaissance Technologies LLCBuy178,8001,489,465$3,500
Q1 2021Sequoia Financial AdvisorsBuy10,00010,000$31
Q1 2021Renaissance Technologies LLCSell-156,1001,310,665$4,115
Q4 2020Renaissance Technologies LLCBuy218,6771,466,765$5,691
Q3 2020Renaissance Technologies LLCBuy41,4501,248,088$1,050
Q2 2020Renaissance Technologies LLCBuy15,1001,206,638$1,014
Q1 2020Renaissance Technologies LLCBuy5,3001,191,538$477
Q4 2019Renaissance Technologies LLCBuy52,9871,186,238$1,127
Q3 2019Renaissance Technologies LLCBuy32,1131,133,251$1,118
Q2 2019Renaissance Technologies LLCBuy123,8921,101,138$1,542
Q1 2019Renaissance Technologies LLCBuy132,609977,246$1,632
Q4 2018Renaissance Technologies LLCSell-35,907844,637$1,005

Frequently asked questions about FTEK activity

  • Which institutional owners are buying FTEK?

    Institutional owners buying FTEK 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 FTEK activity?

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

  • Is institutional interest in FTEK increasing?

    Institutional interest in FTEK 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.