WINMARK CORP (WINA) Stock Institutional Trading Activity


WINMARK CORP (WINA) 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, Polen Capital Management, and Bares 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
Q3 2018Renaissance Technologies LLCBuy10,500190,300$31,590
Q1 2018Renaissance Technologies LLCBuy1,100179,800$23,518
Q4 2017Renaissance Technologies LLCBuy8,400178,700$23,124
Q3 2017Renaissance Technologies LLCBuy20,199170,300$22,437
Q2 2017Renaissance Technologies LLCBuy15,801150,101$19,356
Q1 2017Renaissance Technologies LLCBuy4,200134,300$15,176
Q4 2016Renaissance Technologies LLCBuy1,300130,100$16,412
Q3 2016Renaissance Technologies LLCBuy1,400128,800$13,591
Q2 2016Renaissance Technologies LLCBuy200127,400$12,698
Q1 2016Renaissance Technologies LLCBuy1,500127,200$12,463
Q4 2015Renaissance Technologies LLCBuy300125,700$11,691
Q3 2015Renaissance Technologies LLCBuy6,500125,400$12,906
Q2 2015Renaissance Technologies LLCBuy2,500118,900$11,712
Q1 2015Renaissance Technologies LLCBuy2,900116,400$10,193
Q4 2014Renaissance Technologies LLCBuy800113,500$9,865
Q3 2014Renaissance Technologies LLCSell-478112,700$8,283
Q2 2014Bares Capital ManagementSell-334,373497,975$34,674
Q2 2014Renaissance Technologies LLCBuy14,778113,178$7,881
Q1 2014Bares Capital ManagementSell-1,302832,348$62,975
Q1 2014Renaissance Technologies LLCBuy6,40098,400$7,445
Q4 2013Bares Capital ManagementSell-2,430833,650$77,213
Q4 2013Renaissance Technologies LLCBuy8,10092,000$8,521
Q3 2013Bares Capital ManagementSell-220836,080$61,613
Q3 2013Renaissance Technologies LLCBuy14,10083,900$6,184
Q2 2013Bares Capital ManagementBuy836,300836,300$54,251
Q2 2013Renaissance Technologies LLCBuy69,80069,800$4,528

Frequently asked questions about WINA activity

  • Which institutional owners are buying WINA?

    Institutional owners buying WINA 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 WINA activity?

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

  • Is institutional interest in WINA increasing?

    Institutional interest in WINA 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.