Form4insider filings, from the source

Company · CIK 0002115119 · SIC 6035 — Savings Institution, Federally Chartered · Nasdaq

Columbia Financial, Inc./MD/ · CLBK

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $234 · 1sales $0 · 0net $234
$10k$10k$100k$100k$1M$1MbuyssalesAug 28Sep 2Sep 7Sep 12Sep 18Sep 23Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 18, 2026 AForm 4 →Sep 22, 7:31 am EDTJohn KlimowichSEVP & Chief Risk Officer59$11.58$68520,728—
Sep 18, 2026 AForm 4 →Sep 22, 7:30 am EDTThomas J. KemlyPresident & CEO, Director160$11.58$1,858154,797—
Sep 4, 2026 AForm 4 →Sep 9, 12:20 pm EDTJohn KlimowichSEVP & Chief Risk Officer59$11.70$68520,669—
Sep 4, 2026 AForm 4 →Sep 9, 12:20 pm EDTThomas J. KemlyPresident & CEO, Director159$11.70$1,858154,636—
Sep 4, 2026 AForm 4 →Sep 9, 12:20 pm EDTNoel R. HollandDirector15$11.70$17029,833—
Sep 3, 2026 GForm 4 →Sep 4, 1:15 pm EDTNoel R. HollandDirector20——80,797—
Sep 3, 2026 PForm 4 →Sep 4, 1:15 pm EDTNoel R. HollandDirector20$11.68$23480,817+0.02%

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.