NB BANCORP INC (NBBK) Stock Institutional Trading Activity


NB BANCORP INC (NBBK) 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. 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 2025Renaissance Technologies LLCBuy140,374251,274$4,980,251
Q3 2025Renaissance Technologies LLCSell-33,248110,900$1,957,385
Q2 2025Renaissance Technologies LLCSell-58,052144,148$2,574,483
Q1 2025Renaissance Technologies LLCBuy36,700202,200$3,653,754
Q4 2024Renaissance Technologies LLCBuy89,300165,500$2,988,930
Q3 2024Renaissance Technologies LLCBuy5,50076,200$1,414,272
Q2 2024Renaissance Technologies LLCBuy55,20070,700$1,066,156
Q1 2024Renaissance Technologies LLCBuy15,50015,500$212

Frequently asked questions about NBBK activity

  • Which institutional owners are buying NBBK?

    Institutional owners buying NBBK 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 NBBK activity?

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

  • Is institutional interest in NBBK increasing?

    Institutional interest in NBBK 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.