COGNEX CORP (CGNX) Stock Institutional Trading Activity


COGNEX CORP (CGNX) 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 Mairs & Power Growth Fund, Renaissance Technologies LLC, Disciplined Growth Investors, Engaged Capital, 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
Q2 2018ARK InvestBuy10,13043,170$1,926
Q2 2018Joho CapitalBuy595,3583,069,024$136,909
Q2 2018Disciplined Growth InvestorsSell-2,826799,212$35,653
Q1 2018ARK InvestBuy15,09233,040$1,718
Q1 2018Renaissance Technologies LLCBuy210,900469,556$24,412
Q1 2018Joho CapitalBuy328,6742,473,666$128,606
Q1 2018Disciplined Growth InvestorsSell-35,611802,038$41,698
Q4 2017ARK InvestBuy17,94817,948$1,098
Q4 2017Renaissance Technologies LLCBuy142,528258,656$15,819
Q4 2017Joho CapitalBuy848,7912,144,992$131,188
Q4 2017Disciplined Growth InvestorsBuy414,079837,649$51,231
Q3 2017Renaissance Technologies LLCBuy78,000116,128$12,807
Q3 2017Joho CapitalSell-107,5001,296,201$142,945
Q3 2017Disciplined Growth InvestorsSell-378,705423,570$46,711
Q2 2017Disciplined Growth InvestorsSell-89,170802,275$68,113
Q1 2017Joho CapitalSell-225,0001,403,701$117,841
Q1 2017Disciplined Growth InvestorsBuy3,315891,445$74,837
Q4 2016Joho CapitalSell-61,4371,628,701$103,618
Q4 2016Disciplined Growth InvestorsSell-5,120888,130$56,503
Q3 2016Renaissance Technologies LLCSell-26,40038,128$2,015
Q3 2016Joho CapitalBuy149,5891,690,138$89,341
Q3 2016Disciplined Growth InvestorsBuy60,575893,250$47,217
Q2 2016Renaissance Technologies LLCSell-29,30064,528$2,781
Q2 2016Disciplined Growth InvestorsSell-12,025832,675$35,888
Q1 2016Renaissance Technologies LLCSell-105,20093,828$3,655
Q1 2016Disciplined Growth InvestorsSell-22,375844,700$32,901
Q4 2015Renaissance Technologies LLCBuy3,400199,028$6,721
Q4 2015Joho CapitalBuy1,188,0961,540,549$52,024
Q4 2015Disciplined Growth InvestorsBuy867,075867,075$29,281
Q3 2015Renaissance Technologies LLCBuy53,500195,628$6,724

Frequently asked questions about CGNX activity

  • Which institutional owners are buying CGNX?

    Institutional owners buying CGNX 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 CGNX activity?

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

  • Is institutional interest in CGNX increasing?

    Institutional interest in CGNX 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.