COLB · ISSUER CIK 887343
COLUMBIA BANKING SYSTEM, INC.
Between Aug 1, 2026 and Oct 29, 2026, 3 COLUMBIA BANKING SYSTEM, INC. insiders reported $0.00 of open-market purchases and $0.00 of sales on SEC Form 4.
↗3 insiders filed
Original Form 4 filings from Aug 1, 2026 to Oct 29, 2026. No open-market sales in the window.
$0.00Insider buying
$0.00Insider selling
$0.00Net open-market
Sep 8, 2026Latest filing
| Ticker | Insider | Type | Owned | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 8, 202617:24 | Sep 4, 2026 | COLB | Director | A · Grant | — | +2,577 | 2,577 | New | — | ||
| Sep 4, 202616:41 | Sep 2, 2026 | COLB | Director | A · Grant | — | +2,670 | 2,670 | New | — | ||
| Aug 18, 202616:50 | Aug 14, 2026 | COLB | EVP CHRO | M · Exercise | $32.69 | +2,393 | 2,393 | New | $78K | ||
| Aug 18, 202616:50 | Aug 14, 2026 | COLB | EVP CHRO | F · Tax | $32.69 | −643 | 1,750 | -27% | $21K |