ANDERSON DREW K (EVP Chief Admin Officer) exercised options at COLUMBIA BANKING SYSTEM, INC.
Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.
M · 1 exercise
Filed: 3/17/2026ACC: 0001955918-26-000003
Officer· EVP Chief Admin Officer
Since Mar 2026
-1.22K
Net shares
Net seller
$31.9K
Total sold
0
Open market trades
0B · 0S
3
Total transactions
2.51K acquired · 3.72K disposed
Non-Derivative Transactions2
Common Stock
Direct
Shares
+2.51K
Price / share
$26.23
Trade value
$65.73K
% of position
12.1%
3/13/2026
20.68K→23.18K
Common Stock
Direct
Shares
−1.22K
Price / share
$26.23
Trade value
$31.87K
% of position
5.2%
3/13/2026
23.18K→21.97K
Total
Net shares
+1.29K
Net value
$33.86K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 3/13/2026 | M · Option Exercise | +2.51K | $26.23 | $65.73K | 12.1% | 20.68K | 23.18K |
| Common Stock Direct | 3/13/2026 | F · Tax Withholding | −1.22K | $26.23 | $31.87K | 5.2% | 23.18K | 21.97K |
| Total | +1.29K | $33.86K | ||||||
Derivative Transactions1
Restricted Stock Unit
Direct
Converts to
Common Stock
2.51K shares
Shares
−2.51K
Strike price
Held after
50.61K
Exercisable
—
3/13/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Restricted Stock Unit Direct | Common Stock2.51K shares | 3/13/2026 | M · Option Exercise | −2.51K | — | 50.61K |