NB Bancorp (NBBK) Institutional Ownership $16.91 -0.52 (-2.98%) Closing price 04:00 PM EasternExtended Trading$16.92 +0.02 (+0.09%) As of 04:20 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Ownership Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Institutional Ownership Changes (13F Filings) for NB Bancorp (NASDAQ:NBBK)Number ofInstitutional Buyers(last 12 months)71TotalInstitutional Inflows(last 12 months)$63.02MNumber ofInstitutional Sellers(last 12 months)32TotalInstitutional Outflows(last 12 months)$35.92M Get NBBK Insider Trade Alerts Want to know when executives and insiders are buying or selling NB Bancorp stock? 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Email Address Skip Chart & View Institutional Buying and Selling Data NBBK Institutional Buying and Selling by Quarter NB Bancorp Major Shareholders & Ownership History Export to ExcelReporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails5/20/2025 Focus Partners Wealth85,320$1.54M0.0%-4.1%0.210% 5/19/2025 Jane Street Group LLC54,613$987K0.0%+54.3%0.135% 5/16/2025 Goldman Sachs Group Inc.471,423$8.52M0.0%-18.9%1.127% 5/16/2025 Millennium Management LLC253,543$4.58M0.0%+13.1%0.606% 5/16/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.23,127$418K0.0%+4.4%0.055% 5/16/2025 Integrated Wealth Concepts LLC52,370$946K0.0%-18.7%0.125% 5/16/2025 EJF Capital LLC69,963$1.26M0.8%+56.8%0.167% 5/16/2025 AQR Capital Management LLC13,998$253K0.0%N/A0.033% 5/15/2025 PDT Partners LLC37,286$674K0.0%+78.5%0.089% 5/15/2025 Royal Bank of Canada14,926$270K0.0%-7.6%0.036% Get the Latest News and Ratings for NBBK and Related StocksEnter your email address below to receive the latest news and analysts' ratings for NB Bancorp and its competitors with MarketBeat's FREE daily newsletter. 5/15/2025 Quarry LP1,452$26K0.0%N/A0.003% 5/15/2025 Panagora Asset Management Inc.181,282$3.28M0.0%+24.9%0.433% 5/15/2025 State of Wyoming11,782$213K0.0%+40.9%0.028% 5/14/2025 Rafferty Asset Management LLC32,909$595K0.0%+13.3%0.079% 5/14/2025 Hotchkis & Wiley Capital Management LLC526,810$9.52M0.0%-3.1%1.259% 5/14/2025 Martingale Asset Management L P15,500$280K0.0%N/A0.037% 5/14/2025 Wellington Management Group LLP1,610,589$29.10M0.0%+7.8%3.849% 5/13/2025 American Century Companies Inc.25,697$464K0.0%+8.0%0.061% 5/13/2025 Piper Sandler & CO.40,000$716K0.5%N/A0.096% 5/12/2025 Nuveen LLC132,258$2.39M0.0%N/A0.316% 5/12/2025 Invesco Ltd.29,632$535K0.0%+52.1%0.071% 5/12/2025 Swiss National Bank78,600$1.42M0.0%+4.8%0.188% 5/9/2025 Deutsche Bank AG180,815$3.27M0.0%-1.9%0.432% 5/9/2025 Charles Schwab Investment Management Inc.311,436$5.63M0.0%-2.5%0.744% 5/9/2025 Vanguard Group Inc.2,108,757$38.11M0.0%+1.1%5.040% 5/2/2025 Victory Capital Management Inc.116,199$2.10M0.0%-1.6%0.278% 4/29/2025 Aviance Capital Partners LLC35,733$646K0.1%N/A0.085% 4/23/2025 International Assets Investment Management LLC54,600$987K0.0%N/A0.130% 4/17/2025 Lynch & Associates IN60,226$1.09M0.2%-11.9%0.144% 4/16/2025 Hennessy Advisors Inc.195,000$3.52M0.1%-4.9%0.466% 4/16/2025 SummerHaven Investment Management LLC49,977$903K0.6%+1.5%0.119% 4/15/2025 Northeast Investment Management12,000$217K0.0%N/A0.029% 4/15/2025 SG Americas Securities LLC21,871$395K0.0%-14.6%0.052% 4/14/2025 Investment Advisory Group LLC20,000$361K0.1%N/A0.048% 4/8/2025 Rhumbline Advisers50,805$918K0.0%-34.6%0.121% 4/7/2025 GAMMA Investing LLC4,987$90K0.0%+1,720.1%0.012% 2/17/2025 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC47,471$857K0.0%-7.4%0.111% 2/17/2025 Two Sigma Advisers LP37,400$675K0.0%+259.6%0.088% 2/17/2025 Two Sigma Investments LP112,105$2.03M0.0%-11.6%0.262% 2/17/2025 State of Wyoming8,361$151K0.0%-22.7%0.020% The Trump Dump is starting; Get out of stocks now? (Ad)The first 365 days of the Trump presidency… Will be the best time to get rich in American history.If I’m right about this (like I was before) a modest $900 investment could grow to a life-changing a2/17/2025 Rafferty Asset Management LLC29,046$525K0.0%-48.0%0.068% 2/17/2025 ProShare Advisors LLC10,965$198K0.0%N/A0.026% 2/17/2025Nuveen Asset Management LLC99,384$1.80M0.0%+34.9%0.233% 2/17/2025 Millennium Management LLC224,170$4.05M0.0%+143.6%0.525% 2/17/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.22,152$400K0.0%+3.7%0.052% 2/17/2025 Janus Henderson Group PLC24,871$449K0.0%-5.0%0.058% 2/17/2025 Focus Partners Wealth89,000$1.61M0.0%N/A0.208% 2/17/2025 D. E. Shaw & Co. Inc.11,733$212K0.0%N/A0.027% 2/17/2025 Deutsche Bank AG184,409$3.33M0.0%+7.7%0.432% 2/17/2025 Bank of America Corp DE312,699$5.65M0.0%-39.6%0.732% 2/17/2025 BNP Paribas Financial Markets72,820$1.32M0.0%-4.6%0.170% 2/17/2025 Ameriprise Financial Inc.79,500$1.44M0.0%+79.5%0.186% 2/14/2025 PDT Partners LLC20,883$377K0.0%-32.1%0.049% 2/14/2025 Schonfeld Strategic Advisors LLC14,400$260K0.0%N/A0.034% 2/14/2025 Northern Trust Corp358,539$6.48M0.0%+4.7%0.839% 2/14/2025 Tudor Investment Corp ET AL25,480$460K0.0%-51.6%0.060% 2/14/2025 Integrated Wealth Concepts LLC64,404$1.16M0.0%-13.3%0.151% 2/14/2025 Price T Rowe Associates Inc. MD15,032$272K0.0%+18.0%0.035% 2/14/2025 Tower Research Capital LLC TRC4,433$80K0.0%+87.8%0.010% 2/14/2025 MetLife Investment Management LLC24,251$438K0.0%+5.6%0.057% 2/14/2025 First Trust Advisors LP26,066$471K0.0%N/A0.061% 2/13/2025 Jump Financial LLC23,580$426K0.0%+69.3%0.055% 2/13/2025 Barclays PLC77,444$1.40M0.0%-4.5%0.181% 2/13/2025 Renaissance Technologies LLC165,500$2.99M0.0%+117.2%0.387% 2/13/2025 Invesco Ltd.19,481$352K0.0%+8.0%0.046% 2/13/2025 Federated Hermes Inc.9,711$175K0.0%+324.2%0.023% 2/13/2025 Wells Fargo & Company MN22,852$413K0.0%+27.8%0.054% 2/12/2025 Geode Capital Management LLC880,699$15.91M0.0%-0.5%2.062% 2/12/2025 Alliancebernstein L.P.182,250$3.29M0.0%-53.1%0.427% 2/12/2025 Pertento Partners LLP1,978,903$35.74M3.0%-16.0%4.633% 2/12/2025 JPMorgan Chase & Co.247,482$4.47M0.0%+23.9%0.579% 2/11/2025 Corebridge Financial Inc.19,357$350K0.0%-7.0%0.045% 2/11/2025 Vanguard Group Inc.2,086,825$37.69M0.0%-9.9%4.886% 2/11/2025 KLP Kapitalforvaltning AS7,100$128K0.0%N/A0.017% 2/11/2025 Sei Investments Co.19,103$345K0.0%+34.5%0.045% 2/11/2025 American Century Companies Inc.23,794$430K0.0%+67.8%0.056% 2/11/2025 Quantbot Technologies LP6,191$112K0.0%+375.5%0.014% 2/10/2025 Commonwealth Equity Services LLC18,797$339K0.0%+47.4%0.044% 2/6/2025 Victory Capital Management Inc.118,119$2.13M0.0%+23.4%0.277% 2/6/2025 Charles Schwab Investment Management Inc.319,436$5.77M0.0%+1.3%0.748% 2/4/2025 Bank of New York Mellon Corp101,629$1.84M0.0%+7.9%0.238% 1/30/2025 Stieven Capital Advisors L.P.197,043$3.56M0.6%-21.0%0.461% 1/30/2025 Rhumbline Advisers77,677$1.40M0.0%+44.4%0.182% 1/17/2025 SG Americas Securities LLC25,602$462K0.0%-2.6%0.060% 1/15/2025 Great Oak Capital Partners LLC185,686$3.15M1.1%-4.6%0.435% 1/15/2025 Hennessy Advisors Inc.205,000$3.70M0.1%+24.2%0.480% 12/26/2024 JPMorgan Chase & Co.199,804$3.71M0.0%+119.5%0.468% 11/19/2024 Barclays PLC81,114$1.51M0.0%+73.0%0.190% 11/16/2024 Geode Capital Management LLC885,243$16.43M0.0%+1.9%2.073% 11/15/2024 Resources Management Corp CT ADV1,500$28K0.0%N/A0.004% Trump’s Bitcoin Reserve is No Accident… (Ad)Bryce Paul believes this is the #1 coin to buy right now The catalyst behind this surge is a massive new blockchain development…Just click here to get all the details on this crypto coin now11/15/2024 Barclays PLC81,114$1.51M0.0%+73.0%0.190% 11/15/2024 Wellington Management Group LLP1,493,601$27.72M0.0%+24.2%3.497% 11/15/2024 State Street Corp994,380$18.46M0.0%+16.5%2.328% 11/15/2024 Quarry LP1,781$33K0.0%N/A0.004% 11/15/2024 Janus Henderson Group PLC26,182$486K0.0%+120.1%0.061% 11/15/2024 Hotchkis & Wiley Capital Management LLC330,210$6.13M0.0%N/A0.773% 11/15/2024 Centiva Capital LP11,461$213K0.0%N/A0.027% 11/14/2024 Raffles Associates LP11,154$207K0.2%-95.0%0.026% 11/14/2024 PDT Partners LLC30,753$571K0.1%+78.0%0.072% 11/14/2024 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC51,290$952K0.0%N/A0.120% (Data available from 1/1/2016 forward) NBBK Institutional Ownership - Frequently Asked Questions Who are the largest shareholders of NBBK shares? During the previous two years, 89 institutional investors and hedge funds held shares of NB Bancorp. The most heavily invested institutionals were Vanguard Group Inc. ($38.11M), Pertento Partners LLP ($35.74M), Wellington Management Group LLP ($29.10M), State Street Corp ($18.46M), Geode Capital Management LLC ($15.91M), Hotchkis & Wiley Capital Management LLC ($9.52M), and Goldman Sachs Group Inc. ($8.52M).Learn more on NBBK's institutional investors. Which institutional investors have been buying NB Bancorp stock? Of the 79 institutional investors that purchased NB Bancorp stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Vanguard Group Inc. ($2.00M), Wellington Management Group LLP ($945.53K), Great Oak Capital Partners LLC ($424.24K), Stieven Capital Advisors L.P. ($368.73K), Hotchkis & Wiley Capital Management LLC ($330.21K), Prospector Partners LLC ($242.27K), and Hennessy Advisors Inc. ($230K). How much institutional buying is happening at NB Bancorp? Institutional investors have bought a total of 7,652,642 shares in the last 24 months. This purchase volume represents approximately $118.46M in transactions. Which NB Bancorp major shareholders have been selling company stock? Of the 33 institutional investors that sold NB Bancorp stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Pertento Partners LLP ($376.84K), Great Oak Capital Partners LLC ($238.56K), Vanguard Group Inc. ($228.04K), Raffles Associates LP ($211.87K), Alliancebernstein L.P. ($206.28K), Bank of America Corp DE ($205.17K), and Stieven Capital Advisors L.P. ($171.69K). How much institutional selling is happening at NB Bancorp? Institutional investors have sold a total of 2,067,623 shares in the last 24 months. This volume of shares sold represents approximately $36.52M in transactions. 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