Oliver Edward Lewis Jr, SEVP & Head Commercial Banking at Columbia Financial, bought CLBK on Jul 20, 2026

Data as of Oct 16

▲ BUY$145K14,500 shares at $10.00Oliver Edward Lewis Jr SEVP & Head Commercial BankingCLBK Columbia Financial, Inc.

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Traded: Jul 20, 2026
Disclosed: Jul 22, 2026
Filed: 2 days after the trade

Form 4s are due within two business days.

Official filing (SEC Form 4) ↗

The price around the disclosure

CLBKSimilar stocks (XLF — its sector index fund), rebased to CLBK's price on the disclosure day

CLBK since disclosure

−2.5%

Similar stocks (XLF) since disclosure

−0.9%

XLF — its sector index fund

Change in closing price from Jul 22, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.

Our take

⚪ 3+ insiders buy after a 30% drop — fired on this trade
Not enough evidence · In past tests: 8.0 percentage points better than similar stocks over 3 months · 2,952 tries
⚪ CFO buys $25K+ of own stock — fired on this disclosure day
Not enough evidence · In past tests: 3.6 percentage points better than similar stocks over 3 months · 2,178 tries
⚪ CFO buys $25K+ of own liquid stock — fired on this disclosure day
Not enough evidence · In past tests: 2.0 percentage points better than similar stocks over 3 months · 1,426 tries

What this rule is doing with CLBK right now

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Other trades in the same filing

▲ BUYOliver Edward Lewis Jr SEVP & Head Commercial BankingCLBK Columbia Financial, Inc.$5Kdisclosed Jul 22 · filed 2 days after the trade 1 rule fired

See every trade on CLBK →