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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- WINTRUST FINANCIAL CORP (WTFC) stock institutional ownership
- WINTRUST FINANCIAL CORP (WTFC) stock insider trading activity
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| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q1 2021 | Mairs & Power Growth Fund | Sell | -10,890 | 247,539 | $18,763 |
| Q4 2020 | Mairs & Power Growth Fund | Sell | -34,166 | 258,429 | $15,787 |
| Q3 2020 | Renaissance Technologies LLC | Sell | -40,900 | 144,100 | $5,771 |
| Q3 2020 | Mairs & Power Growth Fund | Buy | 175 | 292,595 | $11,718 |
| Q2 2020 | Renaissance Technologies LLC | Sell | -122,000 | 185,000 | $8,070 |
| Q2 2020 | Mairs & Power Growth Fund | Buy | 28,035 | 292,420 | $12,755 |
| Q1 2020 | Mairs & Power Growth Fund | Buy | 41,100 | 264,385 | $8,688 |
| Q1 2020 | Renaissance Technologies LLC | Buy | 179,900 | 307,000 | $10,088 |
| Q4 2019 | Mairs & Power Growth Fund | Buy | 80 | 223,285 | $15,831 |
| Q4 2019 | Renaissance Technologies LLC | Sell | -118,900 | 127,100 | $9,011 |
| Q3 2019 | Mairs & Power Growth Fund | Buy | 10,920 | 223,205 | $14,426 |
| Q3 2019 | Renaissance Technologies LLC | Buy | 160,600 | 246,000 | $15,899 |
| Q2 2019 | Renaissance Technologies LLC | Sell | -143,500 | 85,400 | $6,248 |
| Q1 2019 | Mairs & Power Growth Fund | Buy | 16,170 | 212,285 | $14,293 |
| Q1 2019 | Renaissance Technologies LLC | Sell | -130,500 | 228,900 | $15,412 |
| Q4 2018 | Mairs & Power Growth Fund | Buy | 28,135 | 196,115 | $13,040 |
| Q4 2018 | Renaissance Technologies LLC | Buy | 303,300 | 359,400 | $23,897 |
| Q3 2018 | Mairs & Power Growth Fund | Buy | 15,100 | 167,980 | $14,268 |
| Q3 2018 | Renaissance Technologies LLC | Sell | -3,100 | 56,100 | $4,765 |
| Q2 2018 | Mairs & Power Growth Fund | Sell | -14,200 | 152,880 | $13,308 |
| Q1 2018 | Mairs & Power Growth Fund | Sell | -8,800 | 167,080 | $14,377 |
| Q1 2018 | Renaissance Technologies LLC | Sell | -15,580 | 59,200 | $5,094 |
| Q4 2017 | Mairs & Power Growth Fund | Sell | -27,550 | 175,880 | $14,487 |
| Q4 2017 | Renaissance Technologies LLC | Sell | -15,920 | 74,780 | $6,160 |
| Q3 2017 | Mairs & Power Growth Fund | Sell | -5,900 | 203,430 | $15,931 |
| Q3 2017 | Renaissance Technologies LLC | Sell | -73,300 | 90,700 | $7,103 |
| Q2 2017 | Mairs & Power Growth Fund | Buy | 16,080 | 209,330 | $16,001 |
| Q2 2017 | Renaissance Technologies LLC | Sell | -23,400 | 164,000 | $12,536 |
| Q1 2017 | Mairs & Power Growth Fund | Buy | 18,350 | 193,250 | $13,357 |
| Q1 2017 | Renaissance Technologies LLC | Buy | 128,500 | 187,400 | $12,953 |
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.