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
Q4 2023Mairs & Power Growth FundSell-107,1051,224,709$113,518,277
Q3 2023Turtle Creek Asset ManagementBuy1001,300$96,395
Q3 2023Renaissance Technologies LLCBuy8,11328,403$2,106
Q3 2023Mairs & Power Growth FundSell-109,5701,331,814$98,754,008
Q2 2023Turtle Creek Asset ManagementBuy6001,200$97,332
Q2 2023Renaissance Technologies LLCBuy16,49020,290$1,646
Q2 2023Mairs & Power Growth FundSell-91,3321,441,384$116,910,656
Q1 2023Turtle Creek Asset ManagementBuy600600$41,118
Q1 2023Mairs & Power Growth FundSell-99,2321,532,716$105,037,027
Q4 2022Mairs & Power Growth FundSell-41,3841,631,948$100,479,038
Q3 2022Mairs & Power Growth FundBuy12,1191,673,332$94,644
Q2 2022Renaissance Technologies LLCSell-49,8003,800$225
Q2 2022Mairs & Power Growth FundSell-5,9931,661,213$98,427
Q1 2022Mairs & Power Growth FundSell-12,8961,667,206$131,376
Q4 2021Mairs & Power Growth FundBuy2,9561,680,102$136,155
Q3 2021Mairs & Power Growth FundBuy18,6801,677,146$124,025
Q2 2021Renaissance Technologies LLCBuy16,10053,600$4,280
Q2 2021Mairs & Power Growth FundBuy7871,658,466$132,428
Q1 2021Renaissance Technologies LLCBuy21,75037,500$2,996
Q1 2021Mairs & Power Growth FundBuy12,6221,657,679$132,432
Q4 2020Renaissance Technologies LLCSell-55015,750$1,105
Q4 2020Mairs & Power Growth FundBuy67,2811,645,057$115,434
Q3 2020Renaissance Technologies LLCBuy8,15516,300$984
Q3 2020Mairs & Power Growth FundSell-14,1711,577,776$95,235
Q2 2020Mairs & Power Growth FundBuy91,1391,591,947$103,492
Q1 2020Renaissance Technologies LLCSell-1,4558,145$472
Q1 2020Mairs & Power Growth FundBuy77,8261,500,808$86,972
Q4 2019Mairs & Power Growth FundBuy10,8151,422,982$110,879
Q3 2019Renaissance Technologies LLCSell-11,6009,600$679
Q3 2019Mairs & Power Growth FundBuy55,6011,412,167$99,840

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.