NBBK Institutional Ownership

NB Bancorp, Inc.

Latest close $23.07 as of Aug 5, 2026

NBBK institutional ownership at a glance

Follow NB Bancorp, Inc. institutional ownership through recent Schedule 13G and 13D filings. Compare reported shares, ownership percentages, filing dates, and changes in beneficial ownership over time.

Latest filing: BlackRock filed Schedule 13G amendment on Oct 17, 2025, reporting 2.7M shares and 12.00% beneficial ownership.

Browse recent ownership filings How Schedule 13G works Why a 13G is not a trade report

How to read Schedule 13 ownership changes

Schedule 13G/13D reports beneficial ownership at an observation date. “Accumulation” or “reduction” is inferred from changes in reported shares when available; it is not a list of individual trades or exact execution prices.

Form 13F rows are quarter-end holding context only and do not establish an exact entry date.

For more context, see how to read a Schedule 13G, filing date vs event date, or Schedule 13G vs Schedule 13D.

Current ownership filings and reported ownership changes are available on free access. Investor and Pro add filing-specific significance scoring, disclosure-speed analysis, confirmation/divergence signals, and alerts. The overall institutional consensus preview remains public. Compare plans.

Cross-institution intelligence

Institutional Research

This gauge summarizes recent agreement across tracked institutional activity.

Latest filing Oct 17, 2025

Public consensus preview Reduction leaning 36/100 institutional research score

1 tracked institution Latest filing Oct 17, 2025

1 reducing across 1 comparable institution.

Accumulating0

Unchanged0

Reducing1

Exited0

The overall consensus is public. Detailed holder comparisons, breadth history, ownership charts, and filing-specific signal analysis remain part of Investor and Pro research.

Price context

52-week position is market context and does not change the institutional consensus score.

52-week low$15.09 52-week high$21.05

Latest close $23.07 100.0% through the range

Tracked institutions

Public holder names and filing freshness. Detailed institution-by-institution analysis is locked.

Latest observation Sep 30, 2025

BlackRock Oct 17, 2025 filed

Detailed institutional research

See what is driving the consensus.

Unlock holder-by-holder changes, ownership history, breadth by period, disclosure timing, and filing-specific signal analysis.

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Beneficial ownership filing history

Showing 3 of 3 filing(s)

Holder	Observed / filed	Reported change	Shares	Ownership	Observation	Filing	Latest
BlackRock CIK0002012383	Sep 30, 2025 observed Oct 17, 2025 filed · 17d Schedule 13G amendment	Reported reduction	2.7M -632.1K	12.00% +4.30 pts	$17.65	$17.32	$23.07
BlackRock CIK0002012383	Sep 30, 2024 quarter end Nov 13, 2024 filed Form 13F quarter-end evidence	Earlier Form 13F quarter-end holding Quarter-end holding evidence; no ownership percentage or signal.	3.3M		$18.56		$23.07
BlackRock CIK0002012383	Sep 30, 2024 observed Nov 8, 2024 filed · 39d Initial Schedule 13G	Initial Schedule 13G	3.3M	7.70%	$18.56	$20.10	$23.07

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