QUANEX BUILDING PRODUCTS (NX) Stock Institutional Trading Activity


QUANEX BUILDING PRODUCTS (NX) 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, First Eagle U.S. Value, and Third Avenue 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 2022Renaissance Technologies LLCSell-68,1741,310,407$27,505
Q4 2021First Eagle U.S. ValueBuy23,94023,940$593
Q4 2021Renaissance Technologies LLCSell-83,3261,378,581$34,161
Q3 2021Renaissance Technologies LLCSell-74,3001,461,907$31,299
Q2 2021Renaissance Technologies LLCSell-164,5531,536,207$38,159
Q1 2021Renaissance Technologies LLCSell-53,2471,700,760$44,611
Q4 2020Renaissance Technologies LLCSell-20,8001,754,007$38,886
Q3 2020Renaissance Technologies LLCSell-99,7001,774,807$32,727
Q2 2020Renaissance Technologies LLCBuy34,5091,874,507$26,018
Q1 2020Renaissance Technologies LLCBuy379,7911,839,998$18,547
Q4 2019Renaissance Technologies LLCBuy407,4071,460,207$24,940
Q3 2019Renaissance Technologies LLCBuy184,6001,052,800$19,035
Q2 2019Renaissance Technologies LLCBuy75,600868,200$16,400
Q1 2019Renaissance Technologies LLCBuy128,600792,600$12,594
Q4 2018Renaissance Technologies LLCSell-83,500664,000$9,024
Q3 2018Renaissance Technologies LLCSell-339,200747,500$13,605
Q1 2018Renaissance Technologies LLCSell-117,0001,086,700$18,909
Q4 2017Renaissance Technologies LLCBuy285,8001,203,700$28,167
Q3 2017Renaissance Technologies LLCSell-22,600917,900$21,066
Q2 2017Third Avenue ManagementBuy500214,700$4,541
Q2 2017Renaissance Technologies LLCSell-175,302940,500$19,892
Q1 2017Third Avenue ManagementBuy135,900214,200$4,338
Q1 2017Renaissance Technologies LLCBuy14,6021,115,802$22,595
Q4 2016Third Avenue ManagementBuy78,30078,300$1,589
Q4 2016Renaissance Technologies LLCSell-77,9001,101,200$22,354
Q3 2016Renaissance Technologies LLCSell-138,5001,179,100$20,351
Q2 2016Renaissance Technologies LLCBuy44,6001,317,600$24,494
Q1 2016Renaissance Technologies LLCBuy291,3001,273,000$22,099
Q4 2015Renaissance Technologies LLCBuy98,900981,700$20,468
Q3 2015Renaissance Technologies LLCBuy260,500882,800$16,040

Frequently asked questions about NX activity

  • Which institutional owners are buying NX?

    Institutional owners buying NX 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 NX activity?

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

  • Is institutional interest in NX increasing?

    Institutional interest in NX 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.