CLEAN ENERGY FUELS CORP (CLNE) Stock Institutional Trading Activity


CLEAN ENERGY FUELS CORP (CLNE) 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 Muhlenkamp & Co. 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 LLCBuy73,295935,395$1,964,330
Q3 2025Renaissance Technologies LLCBuy277,700862,100$2,224,218
Q2 2025Renaissance Technologies LLCBuy245,200584,400$1,139,580
Q1 2025Renaissance Technologies LLCBuy279,300339,200$525,760
Q4 2024Renaissance Technologies LLCBuy21,30059,900$150,349
Q3 2024Renaissance Technologies LLCSell-114,40038,600$120,046
Q2 2023Renaissance Technologies LLCSell-148,800153,000$759
Q2 2022Renaissance Technologies LLCSell-2,702,061301,800$1,352
Q4 2020Renaissance Technologies LLCSell-2,192,3713,003,861$23,610
Q3 2020Renaissance Technologies LLCSell-2,705,1005,196,232$12,887
Q2 2020Renaissance Technologies LLCSell-1,140,8007,901,332$17,541
Q1 2020Renaissance Technologies LLCSell-153,7009,042,132$16,095
Q4 2019Renaissance Technologies LLCSell-390,0079,195,832$21,518
Q3 2019Renaissance Technologies LLCSell-174,3939,585,839$19,795
Q2 2019Renaissance Technologies LLCBuy1,399,3009,760,232$26,060
Q1 2019Renaissance Technologies LLCBuy254,6008,360,932$25,835
Q4 2018Renaissance Technologies LLCBuy1,295,7008,106,332$13,943
Q3 2018Renaissance Technologies LLCBuy4,570,3546,810,632$17,708
Q1 2018Renaissance Technologies LLCBuy114,3002,240,278$3,696
Q4 2017Renaissance Technologies LLCSell-941,8002,125,978$4,316
Q3 2017Renaissance Technologies LLCSell-105,3003,067,778$7,608
Q2 2017Renaissance Technologies LLCSell-549,2003,173,078$8,060
Q1 2017Renaissance Technologies LLCSell-849,1003,722,278$9,492
Q4 2016Renaissance Technologies LLCBuy1,321,1004,571,378$13,074
Q3 2016Renaissance Technologies LLCBuy1,952,7003,250,278$14,529
Q2 2016Renaissance Technologies LLCBuy1,182,8781,297,578$4,503
Q2 2015Renaissance Technologies LLCBuy1,600114,700$645
Q1 2015Renaissance Technologies LLCBuy113,100113,100$603
Q3 2014Muhlenkamp & CoBuy2,585886,845$6,917
Q2 2014Muhlenkamp & CoBuy3,260884,260$10,364

Frequently asked questions about CLNE activity

  • Which institutional owners are buying CLNE?

    Institutional owners buying CLNE 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 CLNE activity?

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

  • Is institutional interest in CLNE increasing?

    Institutional interest in CLNE 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.