NFBK · Insider trading · 13F holders · Congress trades
Northfield Bancorp Inc Del (NFBK)
Who is buying and selling NFBK: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 3
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
NFBK at a glance
- No open-market insider purchases or sales of NFBK were filed in the last 90 days.
- 3 13F filers hold NFBK among their 50 largest positions, worth $8.3M combined. The biggest bets by portfolio weight are Ursa Fund Management, LLC (1.0%), Yakira Capital Management, Inc. (0.5%) and Wittenberg Investment Management, Inc. (0.3%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
- No member of Congress has disclosed a trade in NFBK.
NFBK insider trading
No open-market insider purchases or sales of NFBK were filed in the last 90 days.
Who owns NFBK? Hedge funds and superinvestors
3 13F filers hold NFBK among their 50 largest positions, worth $8.3M combined. The biggest bets by portfolio weight are Ursa Fund Management, LLC (1.0%), Yakira Capital Management, Inc. (0.5%) and Wittenberg Investment Management, Inc. (0.3%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Ursa Fund Management, LLCHedge fund | 1.0% | $5.9M | 400,000 | +300.0% shares | Q2 2026 |
| Yakira Capital Management, Inc.Hedge fund | 0.5% | $1.6M | 109,874 | -23.2% shares | Q2 2026 |
| Wittenberg Investment Management, Inc.Wealth manager | 0.3% | $740K | 50,253 | — | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 3). Screen NFBK in the grand portfolio →
NFBK stock trades by members of Congress
No member of Congress has disclosed a trade in NFBK.
NFBK questions and answers
Are insiders buying NFBK stock?
No open-market insider purchases or sales of NFBK were filed in the last 90 days.
Which hedge funds own NFBK?
3 13F filers hold NFBK among their 50 largest positions, worth $8.3M combined. The biggest bets by portfolio weight are Ursa Fund Management, LLC (1.0%), Yakira Capital Management, Inc. (0.5%) and Wittenberg Investment Management, Inc. (0.3%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
Has Congress traded NFBK?
No member of Congress has disclosed a trade in NFBK.
Who is the largest holder of NFBK?
Among 13F filers, Ursa Fund Management, LLC reports the largest NFBK position, $5.9M (400,000 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Ursa Fund Management, LLC's: 1.0% of its portfolio.
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