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
Q4 2025Renaissance Technologies LLCBuy241,102835,058$30,045,387
Q4 2025Mairs & Power Growth FundBuy558,3021,171,596$42,154,024
Q4 2025Disciplined Growth InvestorsBuy50,8004,655,358$167,499,781
Q3 2025Sequoia Financial AdvisorsBuy67511,408$516,783
Q3 2025Renaissance Technologies LLCBuy354,000593,956$26,906,207
Q3 2025Mairs & Power Growth FundBuy483,517613,294$27,782,218
Q3 2025Engaged CapitalBuy855,000855,000$38,731,500
Q3 2025Disciplined Growth InvestorsSell-164,1584,604,558$208,586,477
Q2 2025Sequoia Financial AdvisorsBuy10,73310,733$340,463
Q2 2025Mairs & Power Growth FundBuy66,418129,777$4,116,526
Q2 2025Renaissance Technologies LLCSell-30,394239,956$7,611,404
Q2 2025Disciplined Growth InvestorsBuy40,9274,768,716$151,263,672
Q1 2025Mairs & Power Growth FundBuy63,35963,359$1,889,999
Q1 2025Renaissance Technologies LLCSell-86,450270,350$8,064,541
Q1 2025Disciplined Growth InvestorsBuy921,2394,727,789$141,029,946
Q4 2024Renaissance Technologies LLCBuy341,144356,800$12,794,848
Q4 2024Disciplined Growth InvestorsBuy54,7433,806,550$136,502,883
Q3 2024Disciplined Growth InvestorsBuy305,9133,751,807$151,948,183
Q2 2024FundsmithSell-59,9591,906,276$89,137,466
Q2 2024Disciplined Growth InvestorsBuy49,0263,445,894$161,130,003
Q1 2024FundsmithSell-53,0831,966,235$83,407,689
Q1 2024Disciplined Growth InvestorsBuy1,453,6233,396,868$144,095,141
Q4 2023Renaissance Technologies LLCSell-194,90015,656$653
Q4 2023FundsmithSell-26,3532,019,318$84,286,333
Q4 2023Disciplined Growth InvestorsSell-3,8761,943,245$81,111,046
Q3 2023Renaissance Technologies LLCBuy206,456210,556$8,936
Q3 2023FundsmithSell-14,1172,045,671$86,818,277
Q3 2023Disciplined Growth InvestorsSell-49,5261,947,121$82,635,815
Q2 2023Renaissance Technologies LLCSell-8,7004,100$230
Q2 2023Disciplined Growth InvestorsSell-77,6031,996,647$111,852,165

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.