CLBK · Insider trading · 13F holders · Congress trades
Columbia Financial, Inc. (CLBK)
Who is buying and selling CLBK: 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
- 4
- Insider buys, 90 days
- $233.60
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
CLBK at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 1 CLBK insider filed 1 open-market purchase worth $233.60 on SEC Form 4.
- 4 13F filers hold CLBK among their 50 largest positions, worth $41.4M combined. The biggest bets by portfolio weight are Ursa Fund Management, LLC (4.4%), One Fin Capital Management LP (4.3%) and Longboard Asset Management, LP (4.3%). In their latest 13Fs, 2 managers opened a new position and 2 added to one.
- No member of Congress has disclosed a trade in CLBK.
- CLBK last closed at $10.73 on Oct 29, 2026.
CLBK insider trading
Between Aug 1, 2026 and Oct 29, 2026, 1 CLBK insider filed 1 open-market purchase worth $233.60 on SEC Form 4.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Sep 4, 2026 | Holland Noel R. | Director | Buy | 20 | $11.68 | $233.60 | SEC |
Who owns CLBK? Hedge funds and superinvestors
4 13F filers hold CLBK among their 50 largest positions, worth $41.4M combined. The biggest bets by portfolio weight are Ursa Fund Management, LLC (4.4%), One Fin Capital Management LP (4.3%) and Longboard Asset Management, LP (4.3%). In their latest 13Fs, 2 managers opened a new position and 2 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Ursa Fund Management, LLCHedge fund | 4.4% | $27.1M | 1,275,888 | +155.2% shares | Q2 2026 |
| One Fin Capital Management LPHedge fund | 4.3% | $12.3M | 580,000 | New | Q2 2026 |
| Minerva Advisors LLCHedge fund | 1.2% | $1.9M | 89,294 | +164.2% shares | Q2 2026 |
| Longboard Asset Management, LPMutual fund manager | 4.3% | $159K | 14,368 | New | Q3 2026 |
Each manager counts with its latest 13F (Q3 2026: 1, Q2 2026: 3). Screen CLBK in the grand portfolio →
CLBK stock trades by members of Congress
No member of Congress has disclosed a trade in CLBK.
CLBK questions and answers
Are insiders buying CLBK stock?
Between Aug 1, 2026 and Oct 29, 2026, 1 CLBK insider filed 1 open-market purchase worth $233.60 on SEC Form 4.
Which hedge funds own CLBK?
4 13F filers hold CLBK among their 50 largest positions, worth $41.4M combined. The biggest bets by portfolio weight are Ursa Fund Management, LLC (4.4%), One Fin Capital Management LP (4.3%) and Longboard Asset Management, LP (4.3%). In their latest 13Fs, 2 managers opened a new position and 2 added to one.
Has Congress traded CLBK?
No member of Congress has disclosed a trade in CLBK.
Who is the largest holder of CLBK?
Among 13F filers, Ursa Fund Management, LLC reports the largest CLBK position, $27.1M (1,275,888 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Ursa Fund Management, LLC's: 4.4% of its portfolio.
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