Northfield Bancorp, Inc.
Northfield Bancorp, Inc. (NFBK) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · NFBK · as of Sep 30, 2025
Ownership Breakdown
174
Institutional Holders
▲ 9 vs Q2
$291.48M
Total Inst. Value
▲ $12.45M vs Q2
41.76M
Shares Outstanding
freeFloat 94.89%
24.70M
13F Shares Held
▲ 397,210 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
NFBK largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. savings institution, federally chartered | 5.52M | 13.73% | 13.73% | $65.09B | Nov 12, 2025 | ▼ 106.5K |
DIMENSIONAL FUND ADVISORS LP savings institution, federally chartered | 2.61M | 6.49% | 6.49% | $30.78B | Nov 12, 2025 | ▼ 24.5K |
VANGUARD GROUP INC savings institution, federally chartered | 2.20M | 5.47% | 5.47% | $25.94B | Nov 7, 2025 | ▼ 133.6K |
STATE STREET CORP savings institution, federally chartered | 1.23M | 3.06% | 3.06% | $14.52B | Nov 14, 2025 | ▲ 71.9K |
RENAISSANCE TECHNOLOGIES LLC savings institution, federally chartered | 1.14M | 2.83% | 2.83% | $13.44B | Nov 13, 2025 | ▼ 127.4K |
GEODE CAPITAL MANAGEMENT, LLC savings institution, federally chartered | 922.1K | 2.29% | 2.29% | $10.88B | Nov 12, 2025 | ▼ 1.0K |
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP savings institution, federally chartered | 699.6K | 1.74% | 1.74% | $8.26B | Nov 13, 2025 | ▲ 101.8K |
AMERICAN CENTURY COMPANIES INC savings institution, federally chartered | 665.8K | 1.66% | 1.66% | $7.86B | Nov 12, 2025 | ▲ 1.3K |
AQR CAPITAL MANAGEMENT LLC savings institution, federally chartered | 653.7K | 1.63% | 1.63% | $7.71B | Nov 14, 2025 | ▲ 179.7K |
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC savings institution, federally chartered | 593.1K | 1.48% | 1.48% | $7.00B | Nov 14, 2025 | ▼ 333.7K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
27
Increased
+1.71M shares1
New Positions
first time holders21
Decreased
−1.25M shares0
Sold Out
fully exitedNet shares change (top 50)
+459.2K
+1.71M / −1.25M
Net new holders
+7
1 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
NFBK insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
26
Buy transactions
14
Sell transactions
1.86
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Fasanella David EVP | Mar 19, 2026 | Purchase | 7,500 | $13.07 | $98.0K | 11.5K | Form 4 ↗ |
Stahlin Paul director | Mar 17, 2026 | Purchase | 10,000 | $13.19 | $131.9K | 54.4K | Form 4 ↗ |
Stahlin Paul director | Feb 4, 2026 | Award | 4,383 | — | — | 4.4K | Form 4 ↗ |
CATINO ANNETTE director | Feb 4, 2026 | Award | 4,383 | — | — | 4.4K | Form 4 ↗ |
Fasanella David EVP | Feb 4, 2026 | Award | 15,066 | — | — | 15.1K | Form 4 ↗ |
Patafio Frank P. director | Feb 4, 2026 | Award | 4,383 | — | — | 4.4K | Form 4 ↗ |
Chapman Gil director | Feb 4, 2026 | Award | 4,383 | — | — | 4.4K | Form 4 ↗ |
Connors John P Jr director | Feb 4, 2026 | Award | 4,383 | — | — | 4.4K | Form 4 ↗ |
Tomasello Vickie EVP/Chief Risk Officer | Feb 4, 2026 | Award | 12,966 | — | — | 13.0K | Form 4 ↗ |
Lefkowitz Robin EVP | Feb 4, 2026 | Award | 13,879 | — | — | 13.9K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Northfield Bancorp, Inc. (NFBK) is primarily owned by institutional investors, who hold approximately 59.1% of total shares outstanding. Company insiders own approximately 5.11%, while retail and public investors account for the remaining 35.74%.
The largest institutional shareholder of Northfield Bancorp, Inc. is BLACKROCK, INC., holding approximately 5.52 million shares — equal to 13.73% of outstanding shares — as of September 30, 2025.
A total of 174 institutional investors currently hold NFBK stock, with a combined institutional value of approximately $291,480,350 as of the most recent 13F filing period.
Frequently asked questions
NFBK ownershipNorthfield Bancorp, Inc. (NFBK) is primarily owned by institutional investors, who hold approximately 59.1% of shares. The largest shareholder is BLACKROCK, INC. with a 13.73% stake. Company insiders hold 5.11%. Data sourced from SEC Form 13F as of September 30, 2025.