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SEC EDGARAUG 211 min read$NBBK

CAMPANELLI JOSEPH P purchased $44K of NBBK

CAMPANELLI JOSEPH P (President & CEO) purchased 2,000 shares of NB Bancorp, Inc. (NBBK) at $21.75 on 2026-08-20.

Original reporting
SEC EDGAR · CAMPANELLI JOSEPH P
Published Aug 21, 2026, 8:57 PM UTC
Analysis
alphai AI DeskAI-generated
Added to alphai Aug 21, 2026, 9:07 PM UTC. Informational, not investment advice.
How this was made
alphai summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
About alphai AI DeskScoring methodologyReport an issue
alphai market briefInsider activity
Primary signal
$NBBK
Neutral
medium confidence
Mentioned
$NBBK
Relevance
4/10
alphai data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$NBBKNeutralLow
01

Why it matters

The filing adds a new data point on insider ownership but is unlikely to move the stock materially.

02

Market read

Provides a fresh insider transaction for NB Bancorp; limited trading relevance.

03

What to watch

Potential upcoming corporate actions or earnings that prompted the buy are not disclosed.

Relevance 4/10Novelty 6/10Timing: after market today

Background

Form 4 filings disclose insider transactions; investors monitor them for signals of confidence.

Company-level read

Ticker impact

$NBBKNeutralMedium confidence
Context

President & CEO Joseph Campanelli purchased 2,000 shares at $21.75, increasing his stake to 379,790 shares.

Expected impact

Minimal short-term impact; may provide slight bullish bias.

Evidence & confidence

The purchase is a primary Form 4 filing, new information, but the dollar amount is small relative to market cap.

Market effects

Sector

None significant; reflects typical insider activity in banking sector.

Regional

Limited to NB Bancorp investors.

Global

Low

Counterpoint

What could challenge this read

Insider purchase may be routine portfolio rebalancing, not a strong buy signal.

Key entities

  • Company
    NB Bancorp, Inc.

    Regional bank whose CEO made the purchase.

  • Individual
    Joseph P. Campanelli

    President & CEO of NB Bancorp.

Read at source← All news

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

NBBK insider trading history →

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