BARUFFI KUMI YAMAMOTO (EVP and General Counsel) sold 1.7% of their position (937.00 shares) of COLUMBIA BANKING SYSTEM, INC. on the open market
Open‑market sale worth $24.6K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 1 sale
Filed: 3/17/2026ACC: 0001619728-26-000003
Officer· EVP and General Counsel
Since Jul 2018
-937.00
Net shares
Net seller
$24.6K
Total sold
1
Open market trades
0B · 1S
3
Total transactions
2.38K acquired · 3.32K disposed
Non-Derivative Transactions2
Common Stock
Direct
Shares
+2.38K
Price / share
$26.23
Trade value
$62.45K
% of position
4.6%
3/13/2026
52.27K→54.65K
Common Stock
Direct
Shares
−937.00
Price / share
$26.23
Trade value
$24.58K
% of position
1.7%
3/13/2026
54.65K→53.72K
Total
Net shares
+1.44K
Net value
$37.88K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 3/13/2026 | M · Option Exercise | +2.38K | $26.23 | $62.45K | 4.6% | 52.27K | 54.65K |
| Common Stock Direct | 3/13/2026 | S · Sale | −937.00 | $26.23 | $24.58K | 1.7% | 54.65K | 53.72K |
| Total | +1.44K | $37.88K | ||||||
Derivative Transactions1
Restricted Stock Unit
Direct
Converts to
Common Stock
2.38K shares
Shares
−2.38K
Strike price
Held after
13.08K
Exercisable
—
3/13/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Restricted Stock Unit Direct | Common Stock2.38K shares | 3/13/2026 | M · Option Exercise | −2.38K | — | 13.08K |