GLACIER BANCORP INC (GBCI) Stock Institutional Trading Activity


GLACIER BANCORP INC (GBCI) 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, Renaissance Technologies LLC, and Kahn Brothers Group. 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 2020Renaissance Technologies LLCBuy3,70051,060$1,636
Q3 2020Mairs & Power Growth FundSell-55279,535$8,959
Q2 2020Mairs & Power Growth FundSell-13,722279,590$9,867
Q1 2020Mairs & Power Growth FundBuy5293,312$9,974
Q4 2019Kahn Brothers GroupSell-8,3066,265$288,127
Q4 2019Mairs & Power Growth FundBuy532293,307$13,489
Q3 2019Kahn Brothers GroupSell-3,88914,571$589,543
Q3 2019Mairs & Power Growth FundBuy290292,775$11,846
Q2 2019Kahn Brothers GroupBuy18,46018,460$748,553
Q2 2019Mairs & Power Growth FundBuy110292,485$11,860
Q2 2019Renaissance Technologies LLCSell-221,10047,360$1,920
Q1 2019Mairs & Power Growth FundSell-330292,375$11,715
Q4 2018Mairs & Power Growth FundSell-75,725292,705$11,597
Q3 2018Mairs & Power Growth FundSell-100368,430$15,876
Q2 2018Mairs & Power Growth FundBuy400368,530$14,255
Q1 2018Mairs & Power Growth FundSell-19,930368,130$14,129
Q4 2017Mairs & Power Growth FundSell-60,160388,060$15,286
Q3 2017Mairs & Power Growth FundBuy13,100448,220$16,925
Q3 2017Renaissance Technologies LLCSell-172,440268,460$10,137
Q2 2017Mairs & Power Growth FundBuy35,720435,120$15,930
Q2 2017Renaissance Technologies LLCSell-418,760440,900$16,141
Q1 2017Mairs & Power Growth FundBuy43,230399,400$13,552
Q1 2017Renaissance Technologies LLCBuy11,360859,660$29,168
Q4 2016Mairs & Power Growth FundBuy8,670356,170$12,904
Q4 2016Renaissance Technologies LLCSell-100,500848,300$30,734
Q3 2016Mairs & Power Growth FundBuy347,500347,500$9,911
Q3 2016Renaissance Technologies LLCSell-14,660948,800$27,060
Q2 2016Renaissance Technologies LLCBuy21,000963,460$25,609
Q1 2016Renaissance Technologies LLCBuy321,460942,460$23,957
Q4 2015Renaissance Technologies LLCBuy86,500621,000$16,475

Frequently asked questions about GBCI activity

  • Which institutional owners are buying GBCI?

    Institutional owners buying GBCI 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 GBCI activity?

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

  • Is institutional interest in GBCI increasing?

    Institutional interest in GBCI 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.