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NB Bancorp (NBBK) Institutional Ownership

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$19.69 -0.34 (-1.70%)
Closing price 04:00 PM Eastern
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$19.69 0.00 (0.00%)
As of 05:34 PM Eastern
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Institutional Ownership Changes (13F Filings) for NB Bancorp (NASDAQ:NBBK)

Number of
Institutional Buyers
(last 12 months)
112
Total
Institutional Inflows
(last 12 months)
$123.22M
Number of
Institutional Sellers
(last 12 months)
51
Total
Institutional Outflows
(last 12 months)
$44.55M
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Skip Chart & View Institutional Buying and Selling Data

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
5/19/2026 Bank of America Corp DE118,801$2.50M0.0%+31.1%0.266%
5/18/2026 Royal Bank of Canada13,268$280K0.0%+7.0%0.030%
5/18/2026 Empowered Funds LLC168,394$3.55M0.0%+10.0%0.377%
5/16/2026 The Manufacturers Life Insurance Company 10,908$230K0.0%-11.7%0.024%
5/16/2026 Quantinno Capital Management LP25,941$547K0.0%+11.2%0.058%
5/16/2026 Lazard Asset Management LLC57,302$1.21M0.0%+9.9%0.128%
5/14/2026 Renaissance Technologies LLC263,906$5.56M0.0%+5.0%0.590%
5/14/2026 Arrowstreet Capital Limited Partnership40,276$849K0.0%+113.5%0.090%
5/14/2026 Sei Investments Co.302,181$6.37M0.0%+110.2%0.676%
5/14/2026 Globeflex Capital L P6,791$143K0.0%N/A0.015%
5/13/2026 First Trust Advisors LP140,264$2.96M0.0%-1.3%0.314%
5/7/2026 Dimensional Fund Advisors LP522,384$11.01M0.0%+81.4%1.156%
5/6/2026 Allspring Global Investments Holdings LLC29,474$626K0.0%N/A0.065%
5/5/2026 Bank of New York Mellon Corp148,066$3.12M0.0%-0.8%0.328%
5/4/2026 Principal 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%
5/1/2026 Fifth 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%
4/16/2026 SG Americas Securities LLC10,024$211K0.0%-23.4%0.022%
4/16/2026 Diversified Trust Co13,194$278K0.0%+7.4%0.029%
3/4/2026 SHP Wealth Management3,454$68K0.0%N/A0.009%
2/19/2026 Invesco Ltd.63,337$1.26M0.0%+19.8%0.159%
2/18/2026 Mercer Global Advisors Inc. ADV16,698$331K0.0%N/A0.042%
2/18/2026 Empowered Funds LLC153,150$3.04M0.0%+91.9%0.385%
2/18/2026 Wellington Management Group LLP1,471,189$29.16M0.0%-19.5%3.694%
2/18/2026 Susquehanna Portfolio Strategies LLC25,370$503K0.0%-7.1%0.064%
2/18/2026 Susquehanna Fundamental Investments LLC29,022$575K0.0%+71.2%0.073%
2/18/2026 Occudo Quantitative Strategies LP32,155$637K0.0%+73.2%0.081%
2/18/2026 Millennium Management LLC54,866$1.09M0.0%-89.9%0.138%
2/18/2026 Bridgeway Capital Management LLC193,150$3.83M0.1%+68.2%0.485%
2/17/2026 Schonfeld Strategic Advisors LLC14,651$290K0.0%N/A0.037%
2/17/2026 AQR Capital Management LLC105,011$2.08M0.0%+28.7%0.264%
2/17/2026 Pertento Partners LLP2,343,776$46.45M4.4%+10.9%5.884%
2/17/2026 Price T Rowe Associates Inc. MD39,493$783K0.0%+112.8%0.099%
2/17/2026 Raffles Associates LP28,374$562K0.4%-8.9%0.071%
2/17/2026 California State Teachers Retirement System36,093$715K0.0%+23.8%0.091%
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2/17/2026 Russell Investments Group Ltd.4,344$86K0.0%-37.5%0.011%
2/17/2026 State of Wisconsin Investment Board26,641$528K0.0%N/A0.067%
2/17/2026 ExodusPoint Capital Management LP20,963$415K0.0%-22.2%0.053%
2/17/2026 Royal Bank of Canada12,400$246K0.0%-7.0%0.031%
2/17/2026 Mangrove Partners IM LLC111,356$2.21M0.2%-2.4%0.280%
2/16/2026 Verition Fund Management LLC38,264$758K0.0%+9.7%0.096%
2/16/2026 Panagora Asset Management Inc.150,391$2.98M0.0%-12.9%0.378%
2/16/2026 Mariner LLC36,366$721K0.0%+194.2%0.091%
2/16/2026 Focus Partners Wealth91,366$1.81M0.0%+7.0%0.229%
2/16/2026 Barclays PLC70,772$1.40M0.0%+33.8%0.178%
2/13/2026 Kestra Advisory Services LLC2,325$46K0.0%N/A0.006%
2/13/2026 Marshall Wace LLP251,512$4.99M0.0%-9.2%0.631%
2/13/2026 The Manufacturers Life Insurance Company 12,354$245K0.0%+6.1%0.031%
2/13/2026 Rafferty Asset Management LLC24,196$480K0.0%-54.1%0.061%
2/13/2026 First Trust Advisors LP142,087$2.82M0.0%+13.2%0.357%
2/13/2026 Integrated Wealth Concepts LLC47,596$943K0.0%+1.0%0.119%
2/13/2026 Charles 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%
2/13/2026 State Street Corp1,114,379$22.09M0.0%-6.9%2.798%
2/13/2026 Martingale Asset Management L P11,700$232K0.0%-12.7%0.029%
2/13/2026 Wells Fargo & Company MN45,419$900K0.0%+69.1%0.114%
2/12/2026 Davis R M Inc.15,930$316K0.0%N/A0.040%
2/12/2026 HRT Financial LP15,064$298K0.0%N/A0.038%
2/12/2026 MetLife Investment Management LLC23,122$458K0.0%-2.7%0.058%
2/12/2026 Financial 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%
2/12/2026 Renaissance Technologies LLC251,274$4.98M0.0%+126.6%0.631%
2/12/2026 Dimensional Fund Advisors LP288,028$5.71M0.0%N/A0.723%
2/12/2026 Integrated Quantitative Investments LLC40,944$812K0.2%+181.6%0.103%
2/12/2026 Federated 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%
2/12/2026 Swiss National Bank77,100$1.53M0.0%+21.4%0.194%
2/12/2026 Nuveen LLC346,779$6.87M0.0%+218.9%0.871%
2/11/2026 Empowered Funds LLC153,150$3.04M0.0%+91.9%0.385%
2/11/2026 Deutsche Bank AG25,025$496K0.0%+24.0%0.063%
2/11/2026 LPL Financial LLC24,328$482K0.0%+35.2%0.061%
2/11/2026Brandywine Global Investment Management LLC27,470$544K0.0%N/A0.069%
2/11/2026 AltraVue Capital LLC693,000$13.74M1.1%N/A1.740%
2/11/2026 Los Angeles Capital Management LLC90,370$1.64M0.0%+93.6%0.227%
2/10/2026 Goldman Sachs Group Inc.593,888$11.77M0.0%+13.1%1.491%
2/10/2026 Tieton Capital Management LLC524,935$10.40M3.6%N/A1.318%
2/9/2026 Geode Capital Management LLC966,662$19.16M0.0%+10.3%2.427%
2/9/2026 Bleakley 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%
2/6/2026 Legato Capital Management LLC171,361$3.40M0.3%N/A0.430%
2/6/2026 Larson Financial Group LLC3,629$72K0.0%+577.1%0.009%
2/6/2026 Summit Wealth Group LLC15,340$304K0.1%N/A0.039%
2/5/2026 Allworth Financial LP5,835$116K0.0%+64,733.3%0.015%
2/4/2026 Northeast Investment Management23,000$456K0.0%+43.8%0.058%
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2/3/2026 NewEdge Wealth LLC18,418$365K0.0%N/A0.046%
1/30/2026 Four Tree Island Advisory LLC21,456$425K0.2%N/A0.054%
1/29/2026 UBS 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%
1/28/2026 Arizona State Retirement System10,827$215K0.0%N/A0.027%
1/27/2026 Round 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%
1/15/2026 Rockland Trust Co.15,969$317K0.0%N/A0.040%
1/9/2026 SG Americas Securities LLC13,089$259K0.0%-9.3%0.033%


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 6,373,229 shares in the last 24 months. This purchase volume represents approximately $123.22M in transactions.

Of the 51 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), Great Oak Capital Partners LLC ($175.05K), JPMorgan Chase & Co. ($112.34K), and State Street Corp ($82.54K).

Institutional investors have sold a total of 2,354,070 shares in the last 24 months. This volume of shares sold represents approximately $44.55M in transactions.


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This page (NASDAQ:NBBK) was last updated on 6/1/2026 by MarketBeat.com Staff.
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