NFBK insider buying

2 cluster buys

Northfield Bancorp, Inc. · Financials

When two or more insiders at Northfield Bancorp, Inc. buy NFBK in a qualifying detection window, the grouped purchases provide a starting point for further research. Below is every cluster we've detected in NFBK plus the full record of qualifying open-market buys, each parsed directly from Form 4 filings and linked back to the source on SEC EDGAR.

Clusters
2
Distinct insiders
10
Total bought
$828.2K
Market cap
$618.5M

Detected clusters

  • Mar 17 – Mar 19, 2026
    Detected Mar 19, 2026
    Executive buyer2 insiders
    Total bought
    $229.9K
    Market cap
    $618.5M
  • May 2 – Jun 13, 2024
    Detected Jun 13, 2024
    Executive buyer9 insiders
    Total bought
    $598.3K
    Market cap
    $618.5M

All notable open-market buys in NFBK

Every open-market Form 4 purchase, newest first. Click an insider to see their full buying record across companies.

DateInsiderSharesPriceValueFiling
Mar 19, 2026
EVP
7,500$13.07$98.0KSEC ↗
Mar 17, 2026
Director
10,000$13.19$131.9KSEC ↗
Jun 13, 2024
Director
10,000$7.92$79.2KSEC ↗
Jun 13, 2024
EVP
1,000$7.79$7.8KSEC ↗
Jun 12, 2024
Director
15,000$8.10$121.5KSEC ↗
Jun 12, 2024
Director
10,000$8.16$81.6KSEC ↗
Jun 12, 2024
Director
10,000$8.14$81.4KSEC ↗
Jun 11, 2024
Director, Chairman, President & CEO
11,061$7.56$83.6KSEC ↗
Jun 11, 2024
Director
6,500$7.52$48.9KSEC ↗
Jun 11, 2024
EVP & PAO
1,000$7.55$7.6KSEC ↗
Jun 10, 2024
Director
10,000$7.53$75.3KSEC ↗
May 2, 2024
Director
1,290$8.89$11.5KSEC ↗

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NFBK insider buying — FAQ

Are insiders buying NFBK stock?
Yes — 10 distinct insiders have bought NFBK (Northfield Bancorp, Inc.) on the open market, including 2 cluster buys where two or more insiders bought within a rolling window. The most recent qualifying activity was Mar 20, 2026.
How much NFBK stock have insiders bought?
Insiders have bought a combined $828.2K of NFBK across 12 open-market purchases, based on SEC Form 4 filings.
What is an insider cluster buy in NFBK?
A cluster buy is two or more distinct Northfield Bancorp, Inc. insiders — officers, directors, or 10% owners — each buying NFBK on the open market within a rolling window. NFBK has 2 detected cluster buys to date.
Where does this NFBK insider trading data come from?
Every figure is parsed directly from SEC Form 4 filings on EDGAR, and each purchase on this page links back to its original filing document.

How we track insider buying in NFBK

We continuously poll SEC EDGAR for new Form 4 filings and parse every open-market purchase (transaction code P). A cluster is recorded when two or more distinct insiders — officers, directors, or 10% owners — each buy NFBK within a rolling window. We track clusters at every company size, from micro-caps to mega-caps. Transactions link to official filings; prices and market capitalizations may be cached market data. Read our methodology and data limits before interpreting the figures. What counts as a cluster buy?

This page is informational and reflects public filing data. It is not investment advice or a recommendation regarding NFBK.