NB BANCORP INC (NBBK) is held by 102 institutional investors that disclose positions via SEC 13F filings. The largest disclosed holder is BlackRock, Inc. as of Q1 2026.

Are institutions buying or selling NBBK?

In Q1 2026, 62 institutions opened or increased positions in NB BANCORP INC while 38 reduced or exited — a net buying quarter.

What is the Smart Money Verdict on NBBK?

The Smart Money Verdict combines four independent sources (institutional 13F activity, insider trades, activist filings, and congressional trades) into a single assessment for NB BANCORP INC.

How many hedge funds hold NBBK?

102 institutional investors report holding NB BANCORP INC (NBBK) as of Q1 2026, based on SEC 13F filings.

Is institutional money flowing into NBBK?

As of Q1 2026, tracked institutions in NB BANCORP INC show 62 buyers versus 38 sellers — net inflows.

NB BANCORP INC

NBBK·63945M107·US·Common Stock·Financial Services - Banks - Regional-13D/G

102

Holders

Avg rating(21 Elite)

$361.1M

Total Value

62% (111)

Fund Consensus

62 buying - 38 selling

Smart Money Verdict

View all

Held by 102 funds

21 elite

Who's Trading

ActivistPLPertento Partners LLP4.6%May 15, 2026

InsiderCPCAMPANELLI JOSEPH PBuy $10KApr 24, 2026

InsiderCPCAMPANELLI JOSEPH PBuy $2KApr 24, 2026

InsiderCPCAMPANELLI JOSEPH PBuy $3KApr 24, 2026

InsiderCPCAMPANELLI JOSEPH PBuy $14KApr 24, 2026

InsiderCPCAMPANELLI JOSEPH PBuy $10KApr 24, 2026

InsiderCPCAMPANELLI JOSEPH PBuy $3KApr 24, 2026

InsiderCPCAMPANELLI JOSEPH PBuy $6KApr 24, 2026

InsiderNJNOLAN JOSEPH R JRTax 5K shApr 24, 2026

Activist

The Vanguard Group0.0%Mar 27, 2026

View all insider trades View all activist filings

13F: Mar 31, 2026Insider & Congress: Updated regularly

Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Decreased	3.1M(-0.6%)	$65M	0.0%	+15.46%	0
VAVANGUARD CAPITAL MANAGEMENT LLC	New	1.7M	$35.9M	0.0%	-2.64%	40
STATE STREET CORP	Increased	1.3M(+16.1%)	$27.3M	0.0%	+27.59%	33
GEODE CAPITAL MANAGEMENT, LLC	Increased	1.1M(+13.7%)	$23.2M	0.0%	+33.32%	32
WELLINGTON MANAGEMENT GROUP LLP	Decreased	710,000(-51.7%)	$15M	0.0%	+32.57%	0
GOLDMAN SACHS GROUP INC	Increased	691,668(+16.5%)	$14.6M	0.0%	+12.43%	33
DIMENSIONAL FUND ADVISORS LP	Increased	522,384(+81.4%)	$11M	0.0%	+1.59%	43
Nuveen, LLC	Increased	488,033(+40.7%)	$10.3M	0.0%	+4.45%	37
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC	Decreased	450,772(-35.8%)	$9.5M	0.0%	+16.75%	0
FMR LLC	Increased	437,725(+14.2%)	$9.2M	0.0%	+12.05%	31
VPVANGUARD PORTFOLIO MANAGEMENT LLC	New	386,132	$8.1M	0.0%	-2.64%	38
TWO SIGMA INVESTMENTS, LP	Increased	371,807(+47.0%)	$7.8M	0.0%	+10.46%	38
NORTHERN TRUST CORP	Increased	335,360(+3.4%)	$7.1M	0.0%	+21.36%	28
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Decreased	318,365(-3.4%)	$6.7M	0.0%	+42.10%	0
SEI INVESTMENTS CO	Increased	302,181(+110.2%)	$6.4M	0.0%	+1.72%	44
MORGAN STANLEY	Increased	279,870(+15.6%)	$5.9M	0.0%	+11.41%	31
RENAISSANCE TECHNOLOGIES LLC	Increased	263,906(+5.0%)	$5.6M	0.0%	+12.01%	28
AMERICAN CENTURY COMPANIES INC	Increased	263,656(+18.8%)	$5.6M	0.0%	+10.34%	32
NEW YORK STATE COMMON RETIREMENT FUND	Increased	260,585(+80.5%)	$5.5M	0.0%	+2.57%	41
VFVANGUARD FIDUCIARY TRUST CO	New	254,038	$5.4M	0.0%	-2.64%	37