TENNANT CO (TNC) Stock Institutional Trading Activity


TENNANT CO (TNC) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q1 2026), investors with some of the largest reported share count changes include Olstein Capital Management, Mairs & Power Growth Fund, Renaissance Technologies LLC, Turtle Creek Asset Management, and Alta Fox Capital Management. 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
Q1 2026Olstein Capital ManagementBuy4,00017,000$1,129
Q4 2025Olstein Capital ManagementBuy1,35013,000$958
Q4 2025Turtle Creek Asset ManagementBuy4,5009,800$722,260
Q4 2025Renaissance Technologies LLCBuy41,34276,900$5,667,530
Q4 2025Mairs & Power Growth FundSell-258,0641,071,624$78,978,689
Q3 2025Turtle Creek Asset ManagementBuy6005,300$429,618
Q3 2025Renaissance Technologies LLCBuy18,15735,558$2,882,331
Q3 2025Mairs & Power Growth FundSell-22,9701,329,688$107,784,509
Q2 2025Olstein Capital ManagementBuy35011,650$903
Q2 2025Turtle Creek Asset ManagementBuy1,8004,700$364,156
Q2 2025Renaissance Technologies LLCSell-8,09917,401$1,348,229
Q2 2025Mairs & Power Growth FundSell-68,7521,352,658$104,803,942
Q1 2025Olstein Capital ManagementBuy1,80011,300$901
Q1 2025Alta Fox Capital ManagementBuy916916$73,051
Q1 2025Turtle Creek Asset ManagementSell-3002,900$231,275
Q1 2025Renaissance Technologies LLCSell-67,90025,500$2,033,625
Q1 2025Mairs & Power Growth FundBuy1,7151,421,410$113,357,448
Q4 2024Olstein Capital ManagementBuy9,5009,500$775
Q4 2024Turtle Creek Asset ManagementBuy3,1003,200$260,896
Q4 2024Renaissance Technologies LLCBuy44,60093,400$7,614,902
Q4 2024Mairs & Power Growth FundBuy83,6131,419,695$115,747,733
Q3 2024Renaissance Technologies LLCBuy12,80048,800$4,686,752
Q3 2024Mairs & Power Growth FundBuy141,4731,336,082$128,317,315
Q2 2024Renaissance Technologies LLCBuy34,20036,000$3,543,840
Q2 2024Mairs & Power Growth FundBuy25,0001,194,609$117,597,310
Q1 2024Turtle Creek Asset ManagementSell-700100$12,161
Q1 2024Renaissance Technologies LLCSell-55,2001,800$219
Q1 2024Mairs & Power Growth FundSell-55,1001,169,609$142,236,150
Q4 2023Turtle Creek Asset ManagementSell-500800$74,152
Q4 2023Renaissance Technologies LLCBuy28,59757,000$5,283

Frequently asked questions about TNC activity

  • Which institutional owners are buying TNC?

    Institutional owners buying TNC 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 TNC activity?

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

  • Is institutional interest in TNC increasing?

    Institutional interest in TNC 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.