WD-40 CO (WDFC) Stock Institutional Trading Activity


WD-40 CO (WDFC) 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, Cullen Value Fund, Sequoia Financial Advisors, Polen Capital Management, and Parnassus Endeavor 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 2017Parnassus Endeavor FundSell-971,310,136$146,604
Q3 2017Renaissance Technologies LLCBuy21,600588,785$65,885
Q2 2017Parnassus Endeavor FundSell-1,1831,310,233$144,584
Q2 2017Renaissance Technologies LLCSell-4,115567,185$62,589
Q1 2017Parnassus Endeavor FundSell-1,4371,311,416$138,147
Q1 2017Renaissance Technologies LLCSell-3,400571,300$62,243
Q4 2016Parnassus Endeavor FundSell-6,9431,312,853$153,473
Q4 2016Renaissance Technologies LLCSell-2,200574,700$67,182
Q3 2016Parnassus Endeavor FundBuy2,5641,319,796$148,385
Q3 2016Renaissance Technologies LLCSell-62,100576,900$64,861
Q2 2016Parnassus Endeavor FundSell-4,3221,317,232$154,709
Q2 2016Renaissance Technologies LLCSell-69,000639,000$75,051
Q1 2016Parnassus Endeavor FundBuy7,9561,321,554$142,741
Q1 2016Renaissance Technologies LLCBuy47,400708,000$76,471
Q4 2015Parnassus Endeavor FundBuy2,5081,313,598$129,586
Q4 2015Renaissance Technologies LLCBuy55,200660,600$65,168
Q3 2015Parnassus Endeavor FundBuy60,9011,311,090$111,464
Q3 2015Renaissance Technologies LLCBuy46,600605,400$53,923
Q2 2015Parnassus Endeavor FundSell-37,4751,250,189$108,966
Q2 2015Renaissance Technologies LLCBuy30,100558,800$48,705
Q1 2015Parnassus Endeavor FundBuy58,8751,287,664$114,010
Q1 2015Renaissance Technologies LLCBuy41,000528,700$46,811
Q4 2014Parnassus Endeavor FundSell-53,3481,228,789$104,545
Q4 2014Renaissance Technologies LLCBuy28,900487,700$41,494
Q3 2014Parnassus Endeavor FundBuy98,2671,282,137$87,134
Q3 2014Renaissance Technologies LLCBuy14,200458,800$31,180
Q2 2014Parnassus Endeavor FundBuy40,0521,183,870$89,051
Q2 2014Renaissance Technologies LLCBuy11,700444,600$33,443
Q1 2014Parnassus Endeavor FundSell-3831,143,818$88,726
Q1 2014Renaissance Technologies LLCBuy35,200432,900$33,580

Frequently asked questions about WDFC activity

  • Which institutional owners are buying WDFC?

    Institutional owners buying WDFC 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 WDFC activity?

    "Buy" means an investor increased their reported position in WDFC compared to the prior reporting period. This reflects growing exposure to WD-40 CO (WDFC) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in WDFC increasing?

    Institutional interest in WDFC 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.