WINTRUST FINANCIAL CORP (WTFC) Stock Institutional Trading Activity


WINTRUST FINANCIAL CORP (WTFC) 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, Tweedy, Browne Co All Funds (US), and Renaissance Technologies LLC. 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 2016Mairs & Power Growth FundBuy5,670174,900$12,692
Q4 2016Renaissance Technologies LLCBuy43,30058,900$4,274
Q3 2016Mairs & Power Growth FundBuy8,700169,230$9,404
Q2 2016Mairs & Power Growth FundBuy8,500160,530$8,187
Q2 2016Renaissance Technologies LLCSell-148,99215,600$796
Q1 2016Mairs & Power Growth FundBuy22,600152,030$6,741
Q1 2016Renaissance Technologies LLCBuy104,592164,592$7,298
Q4 2015Mairs & Power Growth FundBuy4,100129,430$6,280
Q3 2015Mairs & Power Growth FundSell-10,580125,330$6,696
Q2 2015Mairs & Power Growth FundBuy14,710135,910$7,255
Q2 2015Renaissance Technologies LLCSell-18,20060,000$3,203
Q1 2015Mairs & Power Growth FundBuy17,600121,200$5,779
Q1 2015Renaissance Technologies LLCBuy25,30078,200$3,729
Q4 2014Mairs & Power Growth FundBuy12,500103,600$4,844
Q4 2014Renaissance Technologies LLCBuy44,20052,900$2,474
Q3 2014Renaissance Technologies LLCSell-67,3008,700$389
Q2 2014Mairs & Power Growth FundBuy10,30091,100$4,191
Q2 2014Renaissance Technologies LLCSell-69,30076,000$3,496
Q1 2014Mairs & Power Growth FundBuy7,80080,800$3,932
Q1 2014Renaissance Technologies LLCBuy24,700145,300$7,070
Q4 2013Mairs & Power Growth FundBuy10,70073,000$3,367
Q4 2013Renaissance Technologies LLCSell-129,900120,600$5,562
Q3 2013Mairs & Power Growth FundBuy8,80062,300$2,559
Q3 2013Renaissance Technologies LLCBuy25,500250,500$10,288
Q2 2013Renaissance Technologies LLCBuy225,000225,000$8,613
Q2 2013Mairs & Power Growth FundBuy53,50053,500$2,048

Frequently asked questions about WTFC activity

  • Which institutional owners are buying WTFC?

    Institutional owners buying WTFC 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 WTFC activity?

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

  • Is institutional interest in WTFC increasing?

    Institutional interest in WTFC 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.