HEICO CORP (HEI) Stock Institutional Trading Activity


HEICO CORP (HEI) 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, ARK Invest, Sequoia Financial Advisors, Polen Capital Management, and Mairs & Power Growth Fund. 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
Q3 2022ARK InvestSell-5,90521,957$3,161
Q3 2022Renaissance Technologies LLCBuy7,50062,800$9,042
Q2 2022ARK InvestSell-1,24027,862$3,986
Q2 2022Renaissance Technologies LLCBuy22,60055,300$7,251
Q1 2022ARK InvestSell-9,08629,102$4,468
Q1 2022Renaissance Technologies LLCSell-3,46432,700$5,021
Q4 2021ARK InvestSell-4,23538,188$5,507
Q4 2021Renaissance Technologies LLCSell-105,50036,164$5,216
Q3 2021ARK InvestSell-2,36742,423$5,594
Q3 2021Polen Capital ManagementBuy55416,074$2,120
Q3 2021Renaissance Technologies LLCBuy31,100141,664$18,681
Q2 2021ARK InvestBuy39,03444,790$6,245
Q2 2021Polen Capital ManagementBuy1,10715,520$2,164
Q2 2021Renaissance Technologies LLCSell-76,300110,564$15,415
Q1 2021ARK InvestBuy5,7565,756$724
Q1 2021Polen Capital ManagementBuy1,29614,413$1,813
Q1 2021Renaissance Technologies LLCBuy116,400186,864$23,507
Q4 2020Polen Capital ManagementBuy13,11713,117$1,737
Q4 2020Renaissance Technologies LLCSell-247,60070,464$9,329
Q4 2019Renaissance Technologies LLCBuy198,900318,064$36,307
Q3 2019Renaissance Technologies LLCBuy84,518119,164$14,881
Q2 2019Mairs & Power Growth FundSell-6451,700$227
Q1 2019Renaissance Technologies LLCSell-242,32634,646$3,287
Q4 2018Renaissance Technologies LLCBuy203,364276,972$21,460
Q3 2018Mairs & Power Growth FundBuy2,3452,345$217
Q3 2018Renaissance Technologies LLCSell-203,28973,608$6,817
Q1 2018Renaissance Technologies LLCSell-21,302276,897$24,037
Q4 2017Renaissance Technologies LLCBuy78,200298,199$28,135
Q3 2017Renaissance Technologies LLCBuy31,000219,999$19,758
Q2 2017Renaissance Technologies LLCBuy66,360188,999$13,578

Frequently asked questions about HEI activity

  • Which institutional owners are buying HEI?

    Institutional owners buying HEI 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 HEI activity?

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

  • Is institutional interest in HEI increasing?

    Institutional interest in HEI 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.