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24 /100
LOW RISK
Score updated Oct 13, 2026

NBBK — NB Bancorp, Inc. Dilution Risk Tracker

Track NBBK dilution risk with DilutionWatch's stock tracker. DilutionScore™ measures dilution risk across 5 factors — lower scores indicate higher risk of share dilution.

⚠️ Not financial advice. Do your own research before making any investment decisions.

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As of October 13, 2026, NB Bancorp, Inc. (NBBK) has a DilutionWatch DilutionScore of 24/100, rated LOW dilution risk. NB Bancorp, Inc. has a market capitalization of $978.91M, 43.82M shares outstanding, 176 institutional holders tracked.

This page includes automatically generated factual summaries from DilutionWatch data. It is not financial advice, not investment research, and not a recommendation. Do your own research. Read the full disclaimer and terms of service.

Score Breakdown

📋 Offering Ability
40
💰Cash Runway—
📊 Float Risk
10
⚠️ Warrant Exposure
40
🔄 Convertible Debt
40

Dilution Forecast

☀️
Clear
No significant dilution signals
model est. 0%
No significant dilution signals detected for NBBK.
🔔 Track NBBK — Get forecast alerts →

Market Data

Market Cap$978.91M
Shares Outstanding43.82M
Float36.91M
Cash$400.15M
Debt$210.95M
Short InterestN/A

Source-Backed Evidence Depth

This public preview uses stored DilutionWatch fields and linked SEC/market records only. Missing values are not estimated.

FieldCurrent ValueBasis
DilutionScore24/100DilutionWatch score record
Shares Outstanding43.82MVerified float table or market cache
Public Float36.91MVerified float table or market cache
Market Cap$978.91MMarket data cache
Cash RunwayNot applicable / unavailableDilutionWatch score inputs
Shelf CapacityNone in current score inputsSEC-derived dilution fields
ATM CapacityNone in current score inputsSEC-derived dilution fields
Outstanding WarrantsNone in current score inputsSEC-derived dilution fields

Recent source-backed SEC insight records available on this page: 5.

Recent SEC source mix: 4 5.

The page does not infer future share issuance, financing probability, cash needs, management intent, or price impact when source fields are absent.

Institutional Holdings

QoQ: ↑ 15.7% shares (2026Q1 vs prior)
176 institutional holders · 26.46M shares
#1 VANGUARD CAPITAL MANAGEMENT LLC 3.41M shares
#2 BlackRock, Inc. 3.08M shares
#3 Pertento Partners LLP 2.21M shares
+ 17 more holders Sign up free to view →

Institutional holder totals are aggregated from ownership filings and may use a different share basis or reporting date than public float. They are not a reconciliation against tradeable float.

Short Interest

Short Interest1.81M
Days to Cover6.5
% of Float4.9%
FINRA data as of Sep 30, 2026

Recent SEC Activity

4 INSIDER TRANSACTION 2026-04-27
4 INSIDER TRANSACTION 2026-04-27
4 INSIDER TRANSACTION 2026-04-27
4 INSIDER TRANSACTION 2026-04-27
4 INSIDER TRANSACTION 2026-04-27
Full SEC filing analysis available with free account →

Recent News

No recent news available for this ticker.

Factual NBBK Dilution Snapshot

NB Bancorp, Inc. (NBBK) has a DilutionScore of 24/100, rated Low dilution risk. Score date: October 13, 2026.

This automatically generated snapshot is assembled from stored DilutionWatch data fields and may contain data-source errors or omissions. It is not financial advice, not investment research, and not a recommendation. Do your own research and review the full disclaimer and terms of service.

DilutionScore History — Last 90 Days

NBBK's DilutionScore is currently 24/100 (Low risk), with 1 score change tracked over 89 days. The score deteriorated from 27/100 (Medium risk).

Period Score Risk Level Duration
Aug 14 – Oct 13, 202624/100LOW60 days
Jul 16 – Aug 13, 202627/100MEDIUM29 days

Score recalculated daily from SEC filings and market data. Sign up free for real-time score change alerts.

Share Dilution History

NBBK shares outstanding have decreased 4.2% from 45.77M (Mar 2026) to 43.85M (May 2026). Each increase represents potential dilution to existing shareholders.

Date Shares Outstanding Public Float Change
May 18, 202643.85M36.91M▲ 0.29%
May 17, 202643.85M36.80M▼ 0.18%
May 14, 202644.71M36.87M▲ 1.30%
May 01, 202644.77M36.39M▲ 0.14%
Apr 27, 202644.77M36.34M▼ 0.05%
Apr 24, 202644.77M36.36M▼ 3.67%
Apr 09, 202645.17M37.74M▼ 0.02%
Apr 07, 202645.17M37.75M▼ 0.02%
Apr 01, 202645.17M37.76M▼ 0.13%
Mar 09, 202645.77M37.81M▼ 0.61%
Mar 07, 202645.77M38.04M▲ 1.91%
Mar 05, 202645.77M37.33M▲ 15.86%

Share counts sourced from verified regulatory filings. Increases indicate dilution events.

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