13F

Stock

NB Bancorp, Inc.

NBBK · held by 176 managers

Reported value

$473M

Holders

176

+26 new · −17 exited

Holders’ est. mark

$21.1M

Price effect on 144 books still in the name

Largest holder

$65M

BlackRock, Inc.

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
BlackRock, Inc.3.08M$65M$3.86MAdded$3.47M
Pertento Partners LLP2.21M$46.5M$2.76MAdded$40.8K
VANGUARD CAPITAL MANAGEMENT LLC1.7M$35.9MHeld
AltraVue Capital, LLC1.3M$27.5M$866.3KAdded$13.7M
State Street1.29M$27.3M$1.39MAdded$5.17M
GEODE CAPITAL MANAGEMENT, LLC1.1M$23.2M$1.21MAdded$4M
WELLINGTON MANAGEMENT GROUP LLP710K$15M$887.5KCut−$14.2M
GOLDMAN SACHS GROUP INC691.7K$14.6M$742.4KAdded$2.8M
DIMENSIONAL FUND ADVISORS LP522.4K$11M$359.5KAdded$5.3M
Nuveen, LLC488K$10.3M$433.5KAdded$3.41M
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC450.8K$9.5M$563.5KCut−$4.42M
Fidelity437.7K$9.22M$479KAdded$1.63M
VANGUARD PORTFOLIO MANAGEMENT LLC386.1K$8.14MHeld
TWO SIGMA INVESTMENTS, LP371.8K$7.83M$316.1KAdded$2.82M
NORTHERN TRUST CORP335.4K$7.07M$405.4KAdded$638.2K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC318.4K$6.71M$398KAdded$179.3K
SEI INVESTMENTS CO302.2K$6.37M$179.7KAdded$3.52M
MORGAN STANLEY279.9K$5.9M$302.7KAdded$1.1M
Legato Capital Management LLC276.1K$5.82M$214.2KAdded$2.42M
Renaissance Technologies263.9K$5.56M$314.1KAdded$580.2K
AMERICAN CENTURY COMPANIES INC263.7K$5.56M$277.3KAdded$1.16M
NEW YORK STATE COMMON RETIREMENT FUND260.6K$5.49M$180.5KAdded$2.63M
VANGUARD FIDUCIARY TRUST CO254K$5.35MHeld
BRIDGEWAY CAPITAL MANAGEMENT, LLC208.4K$4.39M$241.4KAdded$562.6K
HENNESSY ADVISORS INC180K$3.79M$225KAdded$205.2K
Qube Research & Technologies Ltd175.1K$3.69M$21.7KAdded$3.34M
Empowered Funds, LLC168.4K$3.55M$191.4KAdded$512.6K
MILLENNIUM MANAGEMENT LLC158.2K$3.33M$68.6KAdded$2.25M
PANAGORA ASSET MANAGEMENT INC150.1K$3.16M$187.6KAdded$181.8K
Bank of New York Mellon Corp148.1K$3.12M$185.1KAdded$162.2K
FIRST TRUST ADVISORS LP140.3K$2.96M$175.3KAdded$139.2K
INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC131K$2.78M$124.3KAdded$1.06M
Icahn Capital128.8K$2.71M$131.3KAdded$632.9K
Financial Engines Advisors L.L.C.125.7K$2.65M$147.1KAdded$316K
ALLIANCEBERNSTEIN L.P.130.2K$2.58M$0Cut−$2.46M
BANK OF AMERICA CORP /DE/118.8K$2.5M$113.3KAdded$706.6K
Citadel116.4K$2.45M$133.1KAdded$342K
MANGROVE PARTNERS IM, LLC111.4K$2.35M$139.2KAdded$139.2K
Invesco Ltd.101.2K$2.13M$79.2KAdded$877.9K
Focus Partners Wealth92.8K$1.96M$114.2KAdded$144.6K
Oppenheimer & Close, LLC83K$1.75M$103.7KAdded$103.7K
Swiss National Bank77.1K$1.62M$96.4KAdded$96.4K
UBS Group AG76.1K$1.6M$95.1KCut−$1.29M
Creative Planning70.9K$1.49M$65.6KAdded$453.5K
D. E. Shaw & Co., Inc.70.4K$1.48M$57.2KAdded$575.9K
CREDIT AGRICOLE S A70K$1.47MNew
Round Rock Advisors LLC66.5K$1.4M$64.9KAdded$371.7K
STILWELL VALUE LLC65K$1.37M$81.3KAdded$81.3K
JANE STREET GROUP, LLC60.7K$1.28M$75.8KCut−$339.8K
OP Asset Management Ltd58.4K$1.23MNew
LAZARD ASSET MANAGEMENT LLC57.3K$1.21M$65.2KAdded$173.5K
PRINCIPAL FINANCIAL GROUP INC55.4K$1.17M$69.2KCut−$111.3K
LYNCH & ASSOCIATES/IN53.3K$1.12M$66.7KAdded$46.8K
RHUMBLINE ADVISERS53.2K$1.12M$65.3KAdded$85.6K
Legal & General Group Plc53K$1.12M$66.3KCut−$84.5K
BNP PARIBAS FINANCIAL MARKETS53K$1.12M$66.3KCut−$288K
SUSQUEHANNA INTERNATIONAL GROUP, LLP51.6K$1.09MNew
MACKENZIE FINANCIAL CORP50.9K$1.07MNew
Mariner, LLC49.5K$1.04M$45.4KAdded$322K
NIXON PEABODY TRUST CO48.5K$1.02M$60.6KAdded$60.6K
Integrated Wealth Concepts LLC47.9K$1.01M$59.5KAdded$66.5K
WEDGE CAPITAL MANAGEMENT L L P/NC42.4K$892.4KNew
AMERIPRISE FINANCIAL INC42K$884.1K$52.4KCut−$673.8K
EJF Capital LP41.5K$873.5K$51.8KCut−$2.59M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP40.3K$848.6K$23.6KAdded$474.7K
XTX Topco Ltd39.8K$838.2KNew
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC39.4K$829.4K$49KAdded$52.6K
Aviance Capital Partners, LLC37.2K$783.1K$46.5KAdded$46.5K
Integrated Quantitative Investments LLC37.1K$781.2K$46.3KCut−$30.3K
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM35.8K$754.2K$44.7KAdded$38.9K
JPMORGAN CHASE & CO36.1K$746.3K$31KCut−$427.3K
FEDERATED HERMES, INC.33.9K$714.3K$42.4KAdded$35.7K
CITIGROUP INC33.5K$704.8K$28.6KAdded$251.2K
Connor, Clark & Lunn Investment Management Ltd.32.2K$679.5K$24.7KAdded$287.9K
DEUTSCHE BANK AG\31.1K$655.4K$31.3KAdded$159.4K
Rafferty Asset Management, LLC30K$632.1K$30.2KAdded$152.5K
Allspring Global Investments Holdings, LLC29.5K$626.3KNew
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC27.8K$586.6K$34.8KAdded$11.4K
FRANKLIN RESOURCES INC27.3K$574.6KNew
LPL Financial LLC26.4K$555.4K$30.4KAdded$73.2K
Quantinno Capital Management LP25.9K$546.6K$29.2KAdded$84.4K
LOS ANGELES CAPITAL MANAGEMENT LLC25.4K$534.7K$74.9KCut−$1.1M
Susquehanna Portfolio Strategies, LLC25.4K$534.5K$31.7KAdded$31.7K
Four Tree Island Advisory LLC25K$527K$26.8KAdded$101.7K
NORTHEAST INVESTMENT MANAGEMENT25K$526.8K$28.8KAdded$70.9K
STATE OF WISCONSIN INVESTMENT BOARD24.4K$513.8K$30.5KCut−$14.2K
MARTINGALE ASSET MANAGEMENT L P23.9K$503.6K$14.6KAdded$271.7K
Vanguard Global Advisers, LLC23.5K$495.4KHeld
VANGUARD ASSET MANAGEMENT, Ltd23.5K$494.8KHeld
BARCLAYS PLC23.1K$486.7K$28.9KCut−$916K
MetLife Investment Management, LLC22.8K$480.5K$28.5KAdded$22.2K
COMMONWEALTH EQUITY SERVICES, LLC22.5K$473.9K$26.9KAdded$47.9K
Investment Advisory Group, LLC20K$421.4K$25KAdded$25K
&PARTNERS19.7K$415.7K$24.7KAdded$22.7K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.18.7K$393.9K$23.2KAdded$26.2K
Polymer Capital Management (US) LLC17.9K$376.4KNew
KESTRA PRIVATE WEALTH SERVICES, LLC17.7K$373.6K$22.2KCut−$16.9K
Cerity Partners LLC17.4K$366.4KNew
Zurcher Kantonalbank (Zurich Cantonalbank)17K$357.7K$12.1KAdded$165.9K
Universal- Beteiligungs- und Servicegesellschaft mbH16.8K$354.9K$21.1KAdded$21.1K
WELLS FARGO & COMPANY/MN16.2K$340.4K$20.2KCut−$559.8K
ROCKLAND TRUST CO16K$336.5K$20KAdded$20K
Summit Wealth Group, LLC15.3K$323.2K$19.2KAdded$19.2K
Flywheel Private Wealth LLC15K$316.1KNew
RAFFLES ASSOCIATES LP14.9K$313.4K$18.6KCut−$249K
JANUS HENDERSON GROUP PLC14.8K$311.8K$18.6KAdded$18.6K
ExodusPoint Capital Management, LP14.4K$304.2K$18KCut−$111.3K
Bleakley Financial Group, LLC13.6K$285.8K$17KAdded$14.9K
Sterling Capital Management LLC13.3K$280.9K$2.87KAdded$235.3K
ROYAL BANK OF CANADA13.3K$280K$15.7KAdded$34K
DIVERSIFIED TRUST CO13.2K$278K$15.4KAdded$34.5K
FIFTH THIRD BANCORP12.2K$256.4KNew
Farther Finance Advisors, LLC12K$255.4K$17.2KAdded$17.5K
AFG FIDUCIARY SERVICES LIMITED PARTNERSHIP11.7K$255.3K$25.2KAdded$41K
MERCER GLOBAL ADVISORS INC /ADV11.7K$246.6K$14.6KCut−$84.4K
GREAT OAK CAPITAL PARTNERS, LLC10.6K$236K$28.3KAdded$28.3K
MANUFACTURERS LIFE INSURANCE COMPANY, THE10.9K$229.8K$13.6KCut−$15K
Brevan Howard Capital Management LP10.7K$225.5KNew
ARIZONA STATE RETIREMENT SYSTEM10.7K$225.2K$13.4KAdded$10.6K
Gray Private Wealth, LLC10.6K$223.1K$13.2KAdded$13.2K
Quantbot Technologies LP10.5K$222KNew
Police & Firemen's Retirement System of New Jersey10.5K$221K$13.1KAdded$13.1K
BARRETT & COMPANY, INC.10K$210.7K$12.5KAdded$12.5K
Harbor Advisors LLC10K$210.7K$12.5KAdded$12.5K
Pallas Capital Advisors LLC9.96K$209.8KNew
RAYMOND JAMES FINANCIAL INC9.95K$209.6KNew
INTECH INVESTMENT MANAGEMENT LLC9.89K$208.4K$12.4KCut−$74.3K
Vanguard Investments Australia, Ltd.8.95K$188.5KHeld
KLP KAPITALFORVALTNING AS8.3K$174.9K$10.4KAdded$10.4K
GLOBEFLEX CAPITAL L P6.79K$143.1KNew
Allworth Financial LP5.97K$125.7K$7.29KAdded$10.1K
CWM, LLC4.74K$99.9K$76.7KAdded$99.9K
Russell Investments Group, Ltd.4.34K$91.5K$5.43KAdded$5.43K
Larson Financial Group LLC3.94K$83K$4.54KAdded$11.1K
SHP Wealth Management3.46K$72.8K$4.33KAdded$4.37K
Ameritas Investment Partners, Inc.3.42K$72.1K$4.28KAdded$4.28K
Tower Research Capital LLC (TRC)2.08K$43.8K$2.6KCut−$6.02K
Aquatic Capital Management LLC1.58K$33.4K$648Added$23.1K
Rockefeller Capital Management L.P.1.53K$32.2K$1.91KAdded$1.91K
EverSource Wealth Advisors, LLC1.31K$27.7K$1.61KAdded$2.22K
OSAIC HOLDINGS, INC.1.31K$27.6K$1.64KAdded$1.64K
SIMPLEX TRADING, LLC877$18.5KNew
Stone House Investment Management, LLC818$17.2KNew
Tieton Capital Management, LLC553.6K$11.7K$657Added$1.26K
GAMMA Investing LLC553$11.7K$624Added$1.76K
Essential Partners LLC496$10.5K$618Added$660
EASTERN BANK288$6.07K$360Added$360
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO232$4.89K$7Added$4.77K
STRS OHIO200$4.21K$250Added$250
Optiver Holding B.V.172$3.62K$215Cut−$578
IFP Advisors, Inc172$3.62K$215Added$215
ROTHSCHILD INVESTMENT LLC168$3.54K$109Added$1.82K
MAI Capital Management105$2.21KNew
Root Financial Partners, LLC59$1.24KNew
PNC Financial Services Group, Inc.57$1.2K$71Added$71
QUADRANT CAPITAL GROUP LLC57$1.2K$71Added$71
Smartleaf Asset Management LLC56$1.16K$37Added$37
US BANCORP \DE\53$1.12KNew
Arax Advisory Partners53$1.12K$2Added$1.08K
American Capital Advisory, LLC50$1.05K$63Added$63
SIGNATUREFD, LLC47$990New
PRICE T ROWE ASSOCIATES INC /MD/41.1K$866$50Added$83
Parallel Advisors, LLC39$822$49Added$49
Quarry LP33$695$41Cut−$1.58K
NISA INVESTMENT ADVISORS, LLC18$379$22Added$22
Versant Capital Management, Inc15$316New
Caitong International Asset Management Co., Ltd12$253New
Cambridge Investment Research Advisors, Inc.10.4K$218$13Added$11
SG Americas Securities, LLC10K$211$13Cut−$48
ACADIAN ASSET MANAGEMENT LLC9.04K$190$11Cut−$121
Sunbelt Securities, Inc.5$105$6Added$6
True Wealth Design, LLC2$43$3Added$3
State of Alaska, Department of Revenue1.63K$34$2Added$2
RESOURCES MANAGEMENT CORP /CT/ /ADV1.5K$32$2Added$2
Hughes Financial Services, LLC1$21New
Covestor Ltd34$1$0Cut−$2

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.