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.
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

None significant; reflects typical insider activity in banking sector.

Limited to NB Bancorp investors.

Low

Counterpoint

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

Key entities

  • NB Bancorp, Inc.

    Regional bank whose CEO made the purchase.

  • Joseph P. Campanelli

    President & CEO of NB Bancorp.

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.

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