Companies / NB Bancorp, Inc.

NB Bancorp, Inc.

Nasdaq: NBBKCIK 1979330NEEDHAM, MA

Financials

Revenue—
Net income$50.30M
Total debt—
Cash—
Diluted EPS$1.34
Shares outstanding43.8M

Ownership

43.8M shares outstanding · as of Jul 31, 2026
4.0%Insiders
Ownership
Insiders4.00%1,752,674
10%+ / strategic7.02%3,074,812
Institutions51.85%22,721,464
Public float37.13%16,269,540

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 22

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Insider% of sharesShares
Campanelli Joseph PCEOPresident & CEO · Director
0.98%427,790
Orfanello FrancisDirector
0.31%135,640
Pascucci HopeDirector
0.28%122,402
Lapointe Jean-PierreSEVP and CFO
0.25%110,331
Elliott Mary SusanDirector
0.24%107,195
Lynch Christopher R.Director
0.22%96,922
Montgomery Kenneth C.Director
0.19%85,140
Nolan Joseph R JrDirector
0.19%82,821
Darcey WilliamDirector
0.19%82,639
Ayoub Paul J.Director
0.19%82,512

Institutional holders 166

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HolderValue% of shares
BlackRock, Inc.$70.40M7.60%
Pertento Partners LLP$46.45M5.35%
Vanguard Group Inc$45.61M5.25%
State Street Corporation$31.10M3.36%
Wellington Management Group LLP$29.16M3.36%
Geode Capital Management, LLC$23.16M2.51%
AltraVue Capital, LLC$13.74M1.58%
The Goldman Sachs Group, Inc.$11.77M1.36%
Hotchkis and Wiley Capital Management, LLC$9.50M1.03%
Two Sigma Investments, LP$7.83M0.85%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
Apr 24, 2026Campanelli Joseph P
CEO
OtherCommon Stock$483.0K-24K
-6.14%
372,290
0.85% of shares
low
Jan 24, 2025Elliott Mary Susan
Director
BuyCommon Stock$187.2K+10K
+9.46%
115,761
0.26% of shares
medium
Apr 24, 2026Nolan Joseph R Jr
Director
OtherCommon Stock$97.5K-5K
-5.61%
82,821
0.19% of shares
low
Mar 6, 2026Campanelli Joseph P
CEO
BuyCommon Stock$62.3K+3K
3,000
<0.01% of shares
medium
Mar 6, 2026Campanelli Joseph P
CEO
BuyCommon Stock$62.3K+3K
3,000
<0.01% of shares
medium
Mar 19, 2026Campanelli Joseph P
CEO
BuyCommon Stock$50.4K+3K
+0.63%
396,661
0.91% of shares
low
Mar 6, 2026Campanelli Joseph P
CEO
BuyCommon Stock$41.6K+2K
+4.44%
47,000
0.11% of shares
low
Mar 6, 2026Campanelli Joseph P
CEO
BuyCommon Stock$41.6K+2K
+4.44%
47,000
0.11% of shares
low

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
Vanguard Group IncPassive13G/A—0—
Vanguard Group IncPassive13G—2,301,034—
Needham Bank Employee Stock Ownership Plan TrustPassive13G—3,074,812—

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
NBBK——63945M107—