NBBK
NB Bancorp, Inc. Common StockFinancial Services·Banks - Regional
$20.03
$831M market cap
Revenue
$179.4M
Free Cash Flow
$22.8M
Rev Growth
+0.0%
FCF Margin
12.7%
P/FCF
36.5x
EV/FCF
18.2x
Fwd EV/EBITDA
--
Fair Value
--
Upside
--
NB Bancorp, Inc. focuses on operating as a bank holding company for Needham Bank that provides various banking products and services in Greater Boston metropolitan area and surrounding communities in Massachusetts, eastern Connecticut, southern New Hampshire, and Rhode Island. The company offers various deposits, including certificate of deposit, individual retirement, money market, savings, NOW, demand deposit, and interest-bearing and noninterest-bearing checking accounts; and commercial real
2-Year Price History
$19.78+32.8%
Quarterly Financials & Projections
Quarterly Waterfall ($ M)
| Period | Rev | EBITDA | OpIn | NI | OCF | FCF | CapEx | Cash | Debt | Shares | ROIC | IntCov | EV/EBITDA | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Act | 2026-Q1 | 109.1 | 20.4 | 20.4 | 15.0 | 27.3 | 25.3 | -2.0 | 605.0 | 189.7 | 41.4 | 13.4% | 0.5x | -- |
| Act | 2025-Q4 | 70.3 | 17.4 | 14.9 | 7.7 | -0.4 | -2.5 | -2.1 | 594.7 | 196.2 | 41.2 | 8.1% | 0.5x | -- |
Valuation & Metrics
Market Stats
Price$20.03
Market Cap$831M
Enterprise Value$416M
P/S Ratio4.6x
P/FCF36.5x
EV/FCF18.2x
FCF Margin (TTM)12.7%
FCF Yield2.7%
Dividend Yield (TTM)1.4%
Annual Dilution0.0%
CurrencyUSD
TTM Financial Snapshot
Revenue$179.4M
Net Income$22.7M
Free Cash Flow$22.8M
Revenue Growth (YoY)+0.0%
EBITDA Margin21.1%
Net Margin12.6%
FCF Margin12.7%
CapEx % of Revenue2.3%
SBC % of Revenue2.1%
ROIC10.8%
WC Change % Rev-125.7%
Interest Coverage0.5x
Forward Outlook & Risk
Short Interest
Short % of Float--
Short Shares1.7M
Days to Cover3.5
Change (vs Prior)-0.7%
Need at least 2 settlement dates for chart
Employees
Headcount376
Revenue / Employee$477,168
Gross Profit / Employee$251,918
Institutional Ownership
Headline & net flow
NEUTRAL
Net flow · —still filing
No float data — flow unavailable.
Ownership composition
Active
35.5%(+12.4% YoY)
157 filers
hedge / family / endowment
Retail funds
—
Fidelity, Schwab, 401(k)
Passive
22.3%(+5.7% YoY)
11 filers
Vanguard, iShares, SPDR
Market makers
0.5%(+0.0% YoY)
7 filers
Citadel, Susquehanna
Insiders
—
Form 4 — latest per insider
ActiveRetail fundsPassiveMarket makersRetail direct
Top holders
| Fund | $ value | Cost basis | Δ QoQ | Δ YoY | α life | Fund AUM |
|---|---|---|---|---|---|---|
| BlackRock, Inc.Passive | $65.0M | $18.40 | −$411K | −$1.2M | -0.2% | $5.69T |
| Pertento Partners LLP | $46.5M | $14.72 | −$2.9M | +$4.8M | -0.6% | $942M |
| VANGUARD CAPITAL MANAGEMENT LLCPassive | $35.9M | $21.00 | +$35.8M | +$35.9M | — | $4.04T |
| AltraVue Capital, LLC | $27.5M | $20.30 | +$12.8M | +$27.5M | +2.0% | $1.16B |
| STATE STREET CORPPassive | $27.3M | $16.29 | +$3.8M | +$4.5M | -0.2% | $2.89T |
| GEODE CAPITAL MANAGEMENT, LLCPassive | $23.2M | $15.59 | +$2.8M | +$4.2M | +2.3% | $1.61T |
| WELLINGTON MANAGEMENT GROUP LLP | $15.0M | $15.39 | −$16.0M | −$19.0M | -0.3% | $533.98B |
| GOLDMAN SACHS GROUP INC | $14.6M | $16.11 | +$2.1M | +$4.6M | -0.2% | $760.93B |
| Tieton Capital Management, LLC | $11.7M | $19.76 | +$601K | +$11.7M | -1.8% | $299M |
| DIMENSIONAL FUND ADVISORS LPPassive | $11.0M | $20.28 | +$4.9M | +$11.0M | -0.4% | $480.92B |
| Nuveen, LLC | $10.3M | $19.57 | +$3.0M | +$7.5M | +0.0% | $368.63B |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | $9.5M | $17.97 | −$5.3M | −$1.6M | -0.1% | $31.89B |
| FMR LLC | $9.2M | $18.68 | +$1.1M | +$3.0M | -0.0% | $1.89T |
| VANGUARD PORTFOLIO MANAGEMENT LLCPassive | $8.1M | $21.00 | +$8.1M | +$8.1M | — | $1.91T |
| TWO SIGMA INVESTMENTS, LP | $7.8M | $18.61 | +$2.5M | +$4.7M | -0.9% | $117.03B |
| NORTHERN TRUST CORPPassive | $7.1M | $17.34 | +$232K | −$262K | -0.2% | $755.34B |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $6.7M | $14.65 | −$232K | +$146K | +0.7% | $645.81B |
| SEI INVESTMENTS CO | $6.4M | $20.25 | +$3.3M | +$6.0M | -0.4% | $108.06B |
| MORGAN STANLEY | $5.9M | $17.49 | +$792K | +$595K | -0.3% | $1.65T |
| RENAISSANCE TECHNOLOGIES LLC | $5.6M | $18.02 | +$265K | +$1.3M | +1.2% | $63.91B |
Cost basis is a volume-weighted estimate from accumulation periods within our 13F history; holders who built their position before our window started will show a stale basis. % above the cost basis is the unrealized gain at the current price.
Trading behavior
Smart-money alpha (lifetime, %/qtr)BULLISH
Holders
-0.05%
avg per quarter
Holders (ex-self)
-0.06%
excl. this stock
Buyers (this Q)
+0.33%
94 buyers · $0.12B in
Sellers (this Q)
-0.73%
46 sellers · $0.03B out
alpha coverage: 89% of $ has a lifetime-alpha record
Holder behavior (holder profile)source: holder
On big dips (−10%+)
-1.5%
how holders react when this stock falls
On quiet Qs
-2.6%
−10% to +10% baseline
On rallies (+10%+)
+8.9%
how they react when this stock rises
Holders' portfolio flow this Q
+2.9%
inflows — adds are organic
Sellers' portfolio flow this Q
-3.0%
Sellers shed AUM broadly — partly forced.
Biggest decreases this quarter
WELLINGTON MANAGEMENT GROUP LLP−$16.0Mα-0.3HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC−$5.3Mα-0.1MARSHALL WACE, LLPexited−$5.0MPertento Partners LLP−$2.9Mα-0.6Verition Fund Management LLCexited−$758KOCCUDO QUANTITATIVE STRATEGIES LPexited−$637KBelvedere Trading LLCexited−$527KModera Wealth Management, LLCexited−$436KPoint72 Asset Management, L.P.exited−$414KBlackRock, Inc.−$411Kα-0.2
New buyers this quarter
Top-5 holders · 42.1%
BlackRock, Inc.--
Pertento Partners LLP--
VANGUARD CAPITAL MANAGEMENT LLC--
AltraVue Capital, LLC--
STATE STREET CORP--
Top Holders Over Time
5-year share-count history (top 10 holders by peak, incl. exited) + price
hover the chart for per-quarter detailprice (right axis)
Pertento Partners LLP2.2MWELLINGTON MANAGEMENT GROUP LLP710KAltraVue Capital, LLC1.3MGOLDMAN SACHS GROUP INC692KHOTCHKIS & WILEY CAPITAL MANAGEMENT LLC451KTieton Capital Management, LLC554KMORGAN STANLEY280KMILLENNIUM MANAGEMENT LLC158KALLIANCEBERNSTEIN L.P.130KNuveen, LLC488K
Analyst Coverage
Analyst Coverage
Price Targets
Last Quarter (1 analysts)$24.001980.0%
Last Year (2 analysts)$23.501730.0%
Current Price$20.03
Analyst Ratings
1
Buy: 1Consensus: Buy
Corporate
Insider Trading (last 12mo)
Open-market only (Form 4 P-Purchase + S-Sale). Excludes grants, option exercises, tax withholding, gifts.
Officers & directors
Buys ($, 12mo)
$1.11M
13 txns · 6 insiders · 59,188 sh
Sells ($, 12mo)
$0
0 txns · 0 insiders · 0 sh
Recent transactions
| Date | Side | Insider | Title | Shares | Price | Dollars | Owned $ |
|---|---|---|---|---|---|---|---|
| 2026-05-15 | BUY | CAMPANELLI JOSEPH P | director, officer, other: President & CEO | 3,000 | $19.18 | $58K | $7.25M |
| 2026-04-24 | BUY | CAMPANELLI JOSEPH P | director, officer, other: President & CEO | 2,500 | $19.45 | $49K | $7.29M |
| 2026-04-24 | BUY | Pascucci Hope | director | 20,000 | $19.46 | $389K | $2.77M |
| 2026-03-19 | BUY | CAMPANELLI JOSEPH P | director, officer, other: President & CEO | 2,500 | $20.16 | $50K | $8.00M |
| 2026-03-09 | BUY | Lapointe Jean-Pierre | officer: SEVP and CFO | 1,000 | $20.42 | $20K | $2.25M |
| 2026-03-06 | BUY | CAMPANELLI JOSEPH P | director, officer, other: President & CEO | 5,000 | $20.77 | $104K | $976K |
| 2025-12-19 | BUY | EVANGELISTA PAUL A | officer: EVP, Dir Spec. Bank. Ctr. | 2,000 | $20.87 | $42K | $554K |
| 2025-10-28 | BUY | Pascucci Hope | director | 4,688 | $18.07 | $85K | $2.17M |
| 2025-09-12 | BUY | Montgomery Kenneth C. | director | 5,000 | $18.44 | $92K | $1.48M |
| 2025-08-11 | BUY | Darcey William | director | 5,000 | $17.30 | $86K | $1.39M |
| 2025-07-25 | BUY | EVANGELISTA PAUL A | officer: EVP, Dir Spec. Bank. Ctr. | 500 | $18.39 | $9K | $452K |
| 2025-06-09 | BUY | CAMPANELLI JOSEPH P | director, officer, other: President & CEO | 7,000 | $16.26 | $114K | $5.38M |
| 2025-06-09 | BUY | EVANGELISTA PAUL A | officer: EVP, Dir Spec. Bank. Ctr. | 1,000 | $16.29 | $16K | $392K |
Order Flow (FINRA, ~3w lag)
16.9%retail-4.0pp
22.2%dark+5.2pp
week of 2026-04-13
Off-exchange volume from FINRA. Retail = non-ATS (wholesaler PFOF + broker internalization). Dark = ATS (dark-pool crossing networks, institutional). Lit-exchange = remainder.
Filing Risk Analysis
Filing Risk Scores
NB BANCORP, INC.: Administrative Placeholder with Emerging Growth Opacity
Overall Risk
4/10
Fraud
2/10
Dilution
3/10
Insolvency
2/10
Earnings Overstated
2/10
Hidden Liabilities
2/10
Legal
2/10
Audit Warnings
1/10
Hidden Upside
1/10
Contextually Acceptable
8/10