StockData
NBBKNasdaqSavings Institutions, Not Federally CharteredFiscal year ends December 31

NB Bancorp, Inc.

Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 7, 2026
$21.49−0.37 (-1.69%)

Close on Oct 19, 2026

Market cap
$859.61M
P/E (TTM)
14.1
Dividend yield
–

Ownership

Institutional holdings as of Jun 30, 2026, from 13F filings

Held by institutions
51.5%
23M of 44M shares
Institutional holders
161
13 new, 26 sold out
Net institutional buying
-1M
In Q2 2026
Insider trades, 12 months
28 buys · 1 sales
Net bought $902.48K

Shares held by institutions

Holders of more than 5%

Latest Schedule 13D (active) or 13G (passive) filed by each holder

HolderShares% of classFilingAs of
Delaware Charter Guarantee & Trust Company dba Principal Trust Company as Directed Trustee for the Needham Bank 401(k) Plan and Needham Bank Employee Stock Ownership Plan IRS No4,050,8268.59%13G (passive)Sep 30, 2024
Needham Bank Employee Stock Ownership Plan Trust3,416,4587.50%13G (passive)Dec 31, 2025
BlackRock, Inc.2,663,8336.70%13G (passive) amendmentSep 30, 2025
Pertento Advisors LLC2,338,9875.10%13G (passive) amendmentDec 1, 2025

Top institutional holders

13F holdings as of Jun 30, 2026

HolderShares% of NBBKValueChange% of portfolio
BlackRock, Inc.3,331,5447.60%$70.40M+247,3220.00%
Vanguard Capital Management LLC1,670,8353.81%$35.30M−33,0930.00%
AltraVue Capital, LLC1,655,1083.78%$34.97M+351,0282.52%
Pertento Partners LLP1,475,7703.37%$31.18M−730,8961.68%
State Street Corp1,471,7663.36%$31.10M+178,2280.00%
Geode Capital Management, LLC1,153,2172.63%$24.37M+54,2870.00%
Dimensional Fund Advisors LP753,3201.72%$15.92M+230,9360.00%
Goldman Sachs Group Inc571,9541.31%$12.09M−119,7140.00%
Tieton Capital Management, LLC546,6001.25%$11.55K−6,9700.00%
Hotchkis & Wiley Capital Management LLC501,1721.14%$10.59M+50,4000.03%
Nuveen, LLC498,8691.14%$10.54M+10,8360.00%
FMR LLC497,3051.13%$10.51M+59,5800.00%
Vanguard Portfolio Management LLC397,0460.91%$8.39M+10,9140.00%
Legato Capital Management LLC366,0900.84%$7.74M+90,0200.64%
Northern Trust Corp360,4920.82%$7.62M+25,1320.00%
New York State Common Retirement Fund346,1550.79%$7.31M+85,5700.01%
Charles Schwab Investment Management Inc318,6120.73%$6.73M+2470.00%
Citadel Advisors LLC289,8140.66%$6.12M+173,4430.00%
Two Sigma Investments, LP277,0270.63%$5.85M−94,7800.00%
American Century Companies Inc261,8660.60%$5.53M−1,7900.00%

Institutional buying and selling by quarter

Positions opened, added to, reduced and closed by 13F filers

QuarterHoldersShares held% of sharesNew / addedReduced / closedShares boughtShares sold
Q2 202616123M51.5%13 / 7048 / 262M3M
Q1 202617723M52.7%32 / 6644 / 176M2M
Q4 202516422M50.8%34 / 7835 / 135M2M
Q3 202514619M44.1%28 / 4445 / 132M1M
Q2 202513119M42.8%22 / 4346 / 112M2M
Q1 202512118M41.9%21 / 3737 / 111M1M
Q4 202411318M41.5%15 / 3935 / 91M2M
Q3 202410819M43.6%29 / 3623 / 127M1M
Q2 20249217M38.5%42 / 2114 / 68M1M
Q1 20245610M22.4%43 / 83 / 48M1M
Q4 2023173M5.9%17 / 00 / 03M0M

Top mutual fund and ETF holders

Latest monthly portfolio reports (Form N-PORT)

FundShares% of NBBKValue% of fundAs of
Vanguard Total Stock Market Index Fund1,191,7252.72%$25.18M0.00%Jun 30, 2026
iShares Russell 2000 ETF1,070,8762.44%$22.63M0.03%Jun 30, 2026
State Street(R) SPDR(R) S&P(R) Regional Banking ETF450,0461.03%$9.51M0.20%Jun 30, 2026
Fidelity Small Cap Index Fund443,0681.01%$10.19M0.03%Jul 31, 2026
Vanguard Extended Market Index Fund440,3011.00%$9.30M0.01%Jun 30, 2026
College Retirement Equities Fund - Total Global Stock Account440,2001.00%$9.30M0.01%Jun 30, 2026
iShares Russell 2000 Value ETF394,9820.90%$8.35M0.06%Jun 30, 2026
Fidelity Enhanced Small Cap Core ETF379,3800.87%$8.02M0.14%Jun 30, 2026
Vanguard Russell 2000 Index Fund205,0630.47%$4.11M0.02%May 31, 2026
Fidelity Extended Market Index Fund202,5380.46%$4.06M0.01%May 31, 2026
Schwab U.S. Small-Cap ETF186,7550.43%$3.74M0.02%May 31, 2026
EA Bridgeway Omni Small-Cap Value ETF181,3990.41%$3.83M0.16%Jun 30, 2026
Hennessy Small Cap Financial Fund178,0000.41%$4.10M5.32%Jul 31, 2026
Avantis U.S. Small Cap Value ETF155,1490.35%$3.11M0.01%May 31, 2026
Dimensional U.S. Small Cap ETF138,9360.32%$3.20M0.02%Jul 31, 2026

Officers, directors and major owners

People who filed Forms 3, 4 or 5 in the last two years

NameRoleShares owned% of sharesLatest filing
Joseph P. CampanelliPresident & CEO, Director484,6871.11%Aug 21, 2026
Jean-Pierre LapointeSEVP and CFO116,6490.27%Aug 21, 2026
Kevin HenkinEVP, Chief Credit Officer15,1800.03%Aug 18, 2026
Christine RobertsSEVP and COO71,0810.16%Apr 27, 2026
Matthew G. SchulmanEVP, President Needham Prv Bnk0–Mar 30, 2026
Paul A. EvangelistaEVP, Dir Spec. Bank. Ctr.51,7710.12%Feb 27, 2026
Matthew RichardsonEVP, Treasury & Cash Mgmt Svcs13,7490.03%Feb 27, 2026
James B. DaleyEVP - Dir C&I Banking16,2710.04%Feb 27, 2026
James J. WhiteEVP, Chief Administrative Offc60,4730.14%Feb 27, 2026
Stephanie MaionaEVP, Dir CRE Banking50,7260.12%Feb 27, 2026
Peter BakkalaEVP and Chief Risk Officer32,4880.07%Jun 18, 2025
Joseph R. Nolan JrDirector87,7390.20%May 15, 2026
Angela JacksonDirector81,2550.19%May 15, 2026
William DarceyDirector162,6390.37%May 15, 2026
Christopher R. LynchDirector156,9220.36%May 15, 2026
Mark WhalenDirector107,6390.25%May 15, 2026
Kenneth C. MontgomeryDirector85,1400.19%May 15, 2026
Hope PascucciDirector222,4020.51%Apr 24, 2026
Mary Susan ElliottDirector117,1950.27%Jan 30, 2026
Paul J. AyoubDirector97,5120.22%Jan 6, 2026
Francis OrfanelloDirector143,1400.33%Jan 6, 2026
Joseph B. ReillyDirector53,2770.12%Jan 6, 2026
Muhammad RazaDirector81,3450.19%Jan 6, 2026

Insider trades

Common stock transactions reported on Form 4, newest first

InsiderDateTransactionSharesPriceValueShares after
Jean-Pierre Lapointe
SEVP and CFO
Aug 20, 2026Buy+200$21.80$4.36K110,531
Joseph P. Campanelli
President & CEO, Director
Aug 20, 2026Buy+2,000$21.75$43.50K379,790
Kevin Henkin
EVP, Chief Credit Officer
Aug 14, 2026Sale−2,000$22.93$45.86K6,874
Joseph P. Campanelli
President & CEO, Director
May 15, 2026Buy+133$19.17$2.55K375,423
Joseph P. Campanelli
President & CEO, Director
May 15, 2026Buy+500$19.16$9.58K375,290
Joseph P. Campanelli
President & CEO, Director
May 15, 2026Buy+767$19.18$14.71K376,690
Joseph P. Campanelli
President & CEO, Director
May 15, 2026Buy+100$19.21$1.92K377,543
Joseph P. Campanelli
President & CEO, Director
May 15, 2026Buy+253$19.20$4.86K377,443
Joseph P. Campanelli
President & CEO, Director
May 15, 2026Buy+500$19.19$9.60K377,190
Joseph P. Campanelli
President & CEO, Director
May 15, 2026Buy+400$19.18$7.67K375,823
Joseph P. Campanelli
President & CEO, Director
May 15, 2026Buy+100$19.18$1.92K375,923
Joseph P. Campanelli
President & CEO, Director
May 15, 2026Buy+247$19.21$4.74K377,790
Kenneth C. Montgomery
Director
Apr 24, 2026Tax withholding−5,015$19.82$99.40K80,125
Christopher R. Lynch
Director
Apr 24, 2026Tax withholding−4,150$19.82$82.25K92,772
Mark Whalen
Director
Apr 24, 2026Tax withholding−4,918$19.82$97.47K72,721
Christine Roberts
SEVP and COO
Apr 24, 2026Tax withholding−3,589$19.82$71.13K71,081
William Darcey
Director
Apr 24, 2026Tax withholding−4,918$19.82$97.47K77,721
Joseph R. Nolan Jr
Director
Apr 24, 2026Tax withholding−4,918$19.82$97.47K82,821
Angela Jackson
Director
Apr 24, 2026Tax withholding−4,918$19.82$97.47K76,337
Joseph P. Campanelli
President & CEO, Director
Apr 24, 2026Buy+500$19.37$9.69K373,290
Joseph P. Campanelli
President & CEO, Director
Apr 24, 2026Buy+180$19.34$3.48K372,790
Joseph P. Campanelli
President & CEO, Director
Apr 24, 2026Buy+320$19.33$6.19K372,610
Joseph P. Campanelli
President & CEO, Director
Apr 24, 2026Tax withholding−24,371$19.82$483.03K372,290
Joseph P. Campanelli
President & CEO, Director
Apr 24, 2026Buy+500$19.63$9.82K374,790
Joseph P. Campanelli
President & CEO, Director
Apr 24, 2026Buy+722$19.45$14.04K374,012
Joseph P. Campanelli
President & CEO, Director
Apr 24, 2026Buy+178$19.46$3.46K374,190
Joseph P. Campanelli
President & CEO, Director
Apr 24, 2026Buy+100$19.47$1.95K374,290
Hope Pascucci
Director
Apr 24, 2026Buy+10,000$19.49$194.90K142,402
Hope Pascucci
Director
Apr 24, 2026Buy+10,000$19.44$194.40K132,402
Joseph P. Campanelli
President & CEO, Director
Mar 19, 2026Buy+2,500$20.16$50.40K396,661
Matthew G. Schulman
EVP, President Needham Prv Bnk
Mar 9, 2026Award+6,980––6,980
Jean-Pierre Lapointe
SEVP and CFO
Mar 9, 2026Buy+1,000$20.42$20.42K110,331
Joseph P. Campanelli
President & CEO, Director
Mar 6, 2026Buy+3,000$20.77$62.31K3,000
Joseph P. Campanelli
President & CEO, Director
Mar 6, 2026Buy+2,000$20.78$41.56K47,000
Joseph P. Campanelli
President & CEO, Director
Mar 6, 2026Buy+2,000$20.78$41.56K47,000
Joseph P. Campanelli
President & CEO, Director
Mar 6, 2026Buy+3,000$20.77$62.31K3,000
James B. Daley
EVP - Dir C&I Banking
Feb 25, 2026Award+6,874––6,874
James J. White
EVP, Chief Administrative Offc
Feb 25, 2026Award+6,874––16,874
Stephanie Maiona
EVP, Dir CRE Banking
Feb 25, 2026Award+6,874––6,874
Joseph P. Campanelli
President & CEO, Director
Feb 25, 2026Award+63,015––394,161
Christine Roberts
SEVP and COO
Feb 25, 2026Award+13,749––74,670
Paul A. Evangelista
EVP, Dir Spec. Bank. Ctr.
Feb 25, 2026Award+6,874––33,440
Matthew Richardson
EVP, Treasury & Cash Mgmt Svcs
Feb 25, 2026Award+13,749––13,749
Kevin Henkin
EVP, Chief Credit Officer
Feb 25, 2026Award+6,874––8,874
Jean-Pierre Lapointe
SEVP and CFO
Feb 25, 2026Award+13,749––109,331
Francis Orfanello
Director
Jan 2, 2026Award+5,403––135,640
Angela Jackson
Director
Jan 2, 2026Award+2,402––81,255
Paul J. Ayoub
Director
Jan 2, 2026Award+7,205––82,512
William Darcey
Director
Jan 2, 2026Award+2,402––82,639
Hope Pascucci
Director
Jan 2, 2026Award+2,402––122,402
Joseph R. Nolan Jr
Director
Jan 2, 2026Award+2,402––87,739
Christopher R. Lynch
Director
Jan 2, 2026Award+7,685––96,922
Joseph B. Reilly
Director
Jan 2, 2026Award+2,402––14,414
Mark Whalen
Director
Jan 2, 2026Award+2,402––77,639
Mary Susan Elliott
Director
Jan 2, 2026Award+5,524––105,761
Muhammad Raza
Director
Jan 2, 2026Award+2,402––77,639
Kenneth C. Montgomery
Director
Jan 2, 2026Award+4,803––85,140
Paul A. Evangelista
EVP, Dir Spec. Bank. Ctr.
Dec 19, 2025Buy+2,000$20.87$41.74K26,566
Christopher R. Lynch
Director
Nov 10, 2025Gift−2,725––89,237
Christopher R. Lynch
Director
Oct 30, 2025Gift−600––91,962

Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.