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NB Bancorp (NBBK) Institutional Ownership

NB Bancorp logo
$23.01 +0.27 (+1.19%)
Closing price 07/31/2026 04:00 PM Eastern
Extended Trading
$23.01 0.00 (0.00%)
As of 07/31/2026 05:13 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 Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for NB Bancorp (NASDAQ:NBBK)

Number of
Institutional Buyers
(last 12 months)
111
Total
Institutional Inflows
(last 12 months)
$121.89M
Number of
Institutional Sellers
(last 12 months)
50
Total
Institutional Outflows
(last 12 months)
$41.98M
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NBBK Institutional Buying and Selling by Quarter

NB Bancorp Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
7/10/2026 Wedge Capital Management L L P NC43,216$913K0.0%+2.0%0.097%
7/9/2026 AFG Fiduciary Services Limited Partnership12,493$264K0.2%+6.8%0.028%
5/19/2026Bank of America Corp DE118,801$2.50M0.0%+31.1%0.266%
5/18/2026Royal Bank of Canada13,268$280K0.0%+7.0%0.030%
5/18/2026Empowered Funds LLC168,394$3.55M0.0%+10.0%0.377%
5/16/2026The Manufacturers Life Insurance Company 10,908$230K0.0%-11.7%0.024%
5/16/2026Quantinno Capital Management LP25,941$547K0.0%+11.2%0.058%
5/16/2026Lazard Asset Management LLC57,302$1.21M0.0%+9.9%0.128%
5/14/2026Renaissance Technologies LLC263,906$5.56M0.0%+5.0%0.590%
5/14/2026Arrowstreet Capital Limited Partnership40,276$849K0.0%+113.5%0.090%
5/14/2026Sei Investments Co.302,181$6.37M0.0%+110.2%0.676%
5/14/2026Globeflex Capital L P6,791$143K0.0%N/A0.015%
5/13/2026First Trust Advisors LP140,264$2.96M0.0%-1.3%0.314%
5/7/2026Dimensional Fund Advisors LP522,384$11.01M0.0%+81.4%1.156%
5/6/2026Allspring Global Investments Holdings LLC29,474$626K0.0%N/A0.065%
5/5/2026Bank of New York Mellon Corp148,066$3.12M0.0%-0.8%0.328%
5/4/2026Principal Financial Group Inc.55,364$1.17M0.0%-14.1%0.123%
5/2/2026 International Assets Investment Management LLC131,013$2.78M0.1%+50.8%0.290%
5/1/2026Fifth Third Bancorp12,171$256K0.0%N/A0.027%
4/22/2026 Sterling Capital Management LLC13,332$281K0.0%+479.7%0.030%
4/21/2026 Northeast Investment Management25,000$527K0.0%+8.7%0.055%
4/20/2026 Kestra Private Wealth Services LLC17,731$374K0.0%-10.0%0.039%
4/20/2026 OP Asset Management Ltd58,392$1.23M0.0%N/A0.129%
4/17/2026 Flywheel Private Wealth LLC15,000$316K0.2%N/A0.033%
4/16/2026SG Americas Securities LLC10,024$211K0.0%-23.4%0.022%
4/16/2026 Diversified Trust Co13,194$278K0.0%+7.4%0.029%
3/4/2026SHP Wealth Management3,454$68K0.0%N/A0.009%
2/19/2026Invesco Ltd.63,337$1.26M0.0%+19.8%0.159%
2/18/2026Mercer Global Advisors Inc. ADV16,698$331K0.0%N/A0.042%
2/18/2026Empowered Funds LLC153,150$3.04M0.0%+91.9%0.385%
2/18/2026Wellington Management Group LLP1,471,189$29.16M0.0%-19.5%3.694%
2/18/2026Susquehanna Portfolio Strategies LLC25,370$503K0.0%-7.1%0.064%
2/18/2026Susquehanna Fundamental Investments LLC29,022$575K0.0%+71.2%0.073%
2/18/2026Occudo Quantitative Strategies LP32,155$637K0.0%+73.2%0.081%
2/18/2026Millennium Management LLC54,866$1.09M0.0%-89.9%0.138%
2/18/2026Bridgeway Capital Management LLC193,150$3.83M0.1%+68.2%0.485%
2/17/2026Schonfeld Strategic Advisors LLC14,651$290K0.0%N/A0.037%
2/17/2026AQR Capital Management LLC105,011$2.08M0.0%+28.7%0.264%
2/17/2026Pertento Partners LLP2,343,776$46.45M4.4%+10.9%5.884%
2/17/2026Price T Rowe Associates Inc. MD39,493$783K0.0%+112.8%0.099%
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2/17/2026Raffles Associates LP28,374$562K0.4%-8.9%0.071%
2/17/2026California State Teachers Retirement System36,093$715K0.0%+23.8%0.091%
2/17/2026Russell Investments Group Ltd.4,344$86K0.0%-37.5%0.011%
2/17/2026State of Wisconsin Investment Board26,641$528K0.0%N/A0.067%
2/17/2026ExodusPoint Capital Management LP20,963$415K0.0%-22.2%0.053%
2/17/2026Royal Bank of Canada12,400$246K0.0%-7.0%0.031%
2/17/2026Mangrove Partners IM LLC111,356$2.21M0.2%-2.4%0.280%
2/16/2026Verition Fund Management LLC38,264$758K0.0%+9.7%0.096%
2/16/2026Panagora Asset Management Inc.150,391$2.98M0.0%-12.9%0.378%
2/16/2026Mariner LLC36,366$721K0.0%+194.2%0.091%
2/16/2026Focus Partners Wealth91,366$1.81M0.0%+7.0%0.229%
2/16/2026Barclays PLC70,772$1.40M0.0%+33.8%0.178%
2/13/2026 Kestra Advisory Services LLC2,325$46K0.0%N/A0.006%
2/13/2026Marshall Wace LLP251,512$4.99M0.0%-9.2%0.631%
2/13/2026The Manufacturers Life Insurance Company 12,354$245K0.0%+6.1%0.031%
2/13/2026Rafferty Asset Management LLC24,196$480K0.0%-54.1%0.061%
2/13/2026First Trust Advisors LP142,087$2.82M0.0%+13.2%0.357%
2/13/2026Integrated Wealth Concepts LLC47,596$943K0.0%+1.0%0.119%
2/13/2026Charles Schwab Investment Management Inc.329,398$6.53M0.0%+14.6%0.827%
2/13/2026 Police & Firemen s Retirement System of New Jersey10,491$208K0.0%+13.3%0.026%
2/13/2026State Street Corp1,114,379$22.09M0.0%-6.9%2.798%
2/13/2026Martingale Asset Management L P11,700$232K0.0%-12.7%0.029%
2/13/2026Wells Fargo & Company MN45,419$900K0.0%+69.1%0.114%
2/12/2026Davis R M Inc.15,930$316K0.0%N/A0.040%
2/12/2026HRT Financial LP15,064$298K0.0%N/A0.038%
2/12/2026MetLife Investment Management LLC23,122$458K0.0%-2.7%0.058%
2/12/2026Financial Engines Advisors L.L.C.117,707$2.33M0.0%-9.0%0.296%
2/12/2026 Commonwealth Equity Services LLC21,496$426K0.0%N/A0.054%
2/12/2026Renaissance Technologies LLC251,274$4.98M0.0%+126.6%0.631%
2/12/2026Dimensional Fund Advisors LP288,028$5.71M0.0%N/A0.723%
2/12/2026Integrated Quantitative Investments LLC40,944$812K0.2%+181.6%0.103%
2/12/2026Federated Hermes Inc.34,237$679K0.0%+404.7%0.086%
2/12/2026 New York State Common Retirement Fund144,385$2.86M0.0%+1,343.9%0.363%
2/12/2026Swiss National Bank77,100$1.53M0.0%+21.4%0.194%
2/12/2026Nuveen LLC346,779$6.87M0.0%+218.9%0.871%
2/11/2026Empowered Funds LLC153,150$3.04M0.0%+91.9%0.385%
2/11/2026Deutsche Bank AG25,025$496K0.0%+24.0%0.063%
2/11/2026LPL Financial LLC24,328$482K0.0%+35.2%0.061%
2/11/2026Brandywine Global Investment Management LLC27,470$544K0.0%N/A0.069%
2/11/2026AltraVue Capital LLC693,000$13.74M1.1%N/A1.740%
2/11/2026Los Angeles Capital Management LLC90,370$1.64M0.0%+93.6%0.227%
2/10/2026Goldman Sachs Group Inc.593,888$11.77M0.0%+13.1%1.491%
2/10/2026Tieton Capital Management LLC524,935$10.40M3.6%N/A1.318%
2/9/2026Geode Capital Management LLC966,662$19.16M0.0%+10.3%2.427%
2/9/2026Bleakley Financial Group LLC13,665$271K0.0%N/A0.034%
2/6/2026 EverSource Wealth Advisors LLC1,286$25K0.0%+75.4%0.003%
2/6/2026 Nixon Peabody Trust Co.48,516$962K0.1%N/A0.122%
2/6/2026Legato Capital Management LLC171,361$3.40M0.3%N/A0.430%
2/6/2026Larson Financial Group LLC3,629$72K0.0%+577.1%0.009%
2/6/2026Summit Wealth Group LLC15,340$304K0.1%N/A0.039%
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2/5/2026Allworth Financial LP5,835$116K0.0%+64,733.3%0.015%
2/4/2026 Northeast Investment Management23,000$456K0.0%+43.8%0.058%
2/3/2026NewEdge Wealth LLC18,418$365K0.0%N/A0.046%
1/30/2026Four Tree Island Advisory LLC21,456$425K0.2%N/A0.054%
1/29/2026UBS Group AG146,094$2.90M0.0%-61.4%0.367%
1/29/2026Vanguard Group Inc.2,301,034$45.61M0.0%+18.0%5.777%
1/28/2026Arizona State Retirement System10,827$215K0.0%N/A0.027%
1/27/2026Round Rock Advisors LLC51,906$1.03M0.2%+52.8%0.130%
1/27/2026 Hennessy Advisors Inc.181,000$3.59M0.1%-2.2%0.454%
1/21/2026 Flagship Harbor Advisors LLC6,436$128K0.0%-46.0%0.016%


NBBK Institutional Ownership - Frequently Asked Questions

During the previous two years, 158 institutional investors and hedge funds held shares of NB Bancorp. The most heavily invested institutionals were Pertento Partners LLP ($46.45M), Vanguard Group Inc. ($45.61M), Wellington Management Group LLP ($29.16M), State Street Corp ($22.09M), Geode Capital Management LLC ($19.16M), AltraVue Capital LLC ($13.74M), and Hotchkis & Wiley Capital Management LLC ($12.27M).Learn more on NB Bancorp's institutional investors.

Of the 146 institutional investors that purchased NB Bancorp's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: AltraVue Capital LLC ($693K), Tieton Capital Management LLC ($524.94K), Dimensional Fund Advisors LP ($522.38K), Hotchkis & Wiley Capital Management LLC ($478.68K), Wellington Management Group LLP ($407.81K), Vanguard Group Inc. ($372.83K), and Nuveen LLC ($370.29K).

Institutional investors have bought a total of 6,298,157 shares in the last 24 months. This purchase volume represents approximately $121.89M in transactions.

Of the 50 institutional investors that sold NB Bancorp's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Millennium Management LLC ($588.21K), Wellington Management Group LLP ($389.40K), Bank of America Corp DE ($238.30K), UBS Group AG ($232.26K), JPMorgan Chase & Co. ($112.34K), State Street Corp ($82.54K), and Victory Capital Management Inc. ($60.44K).

Institutional investors have sold a total of 2,210,422 shares in the last 24 months. This volume of shares sold represents approximately $41.98M in transactions.


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This page (NASDAQ:NBBK) was last updated on 8/1/2026 by MarketBeat.com Staff.
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