GREENBRIER COMPANIES INC (GBX) Stock Institutional Trading Activity


GREENBRIER COMPANIES INC (GBX) 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, Cullen Value Fund, Donald Smith & Co., and Olstein 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 2020Donald Smith & Co.Buy254313,489$11,405
Q3 2020Donald Smith & Co.Buy313,235313,235$9,209
Q3 2020Olstein Capital ManagementSell-21,505260,495$7,659
Q2 2020Olstein Capital ManagementSell-118,950282,000$6,416
Q1 2020Olstein Capital ManagementBuy119,750400,950$7,113
Q4 2019Renaissance Technologies LLCSell-123,200127,100$4,122
Q4 2019Olstein Capital ManagementSell-44,100281,200$9,119
Q3 2019Olstein Capital ManagementBuy83,300325,300$9,798
Q2 2019Olstein Capital ManagementBuy57,000242,000$7,357
Q1 2019Olstein Capital ManagementBuy81,232185,000$5,963
Q4 2018Olstein Capital ManagementBuy12,218103,768$4,103
Q4 2018Renaissance Technologies LLCSell-15,700250,300$9,897
Q3 2018Olstein Capital ManagementSell-66,35091,550$5,502
Q3 2018Renaissance Technologies LLCBuy119,900266,000$15,987
Q2 2018Olstein Capital ManagementSell-24,482157,900$8,329
Q1 2018Renaissance Technologies LLCSell-479,900146,100$7,342
Q1 2018Olstein Capital ManagementSell-30,218182,382$9,165
Q4 2017Renaissance Technologies LLCBuy352,301626,000$33,366
Q3 2017Olstein Capital ManagementBuy14,026212,600$10,237
Q3 2017Renaissance Technologies LLCBuy212,199273,699$13,179
Q2 2017Olstein Capital ManagementBuy17,484198,574$9,184
Q1 2017Olstein Capital ManagementSell-102,460181,090$7,805
Q4 2016Olstein Capital ManagementSell-137,740283,550$11,782
Q3 2016Renaissance Technologies LLCSell-8,80061,500$2,171
Q3 2016Olstein Capital ManagementSell-103,330421,290$14,872
Q2 2016Olstein Capital ManagementSell-55,459524,620$15,282
Q1 2016Renaissance Technologies LLCSell-35,60070,300$1,943
Q1 2016Olstein Capital ManagementBuy35,079580,079$16,033
Q4 2015Renaissance Technologies LLCSell-206,700105,900$3,454
Q4 2015Olstein Capital ManagementBuy81,000545,000$17,778

Frequently asked questions about GBX activity

  • Which institutional owners are buying GBX?

    Institutional owners buying GBX 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 GBX activity?

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

  • Is institutional interest in GBX increasing?

    Institutional interest in GBX 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.