COLUMBIA BKG SYS INC

Ticker: COLB CUSIP: 197236102 Class: Common Stock

PRIVATE TRUST CO NA's Holding History (CIK: 0001277557)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 241 Value ($000) $7 Avg Close $26.85 Range $23.52 - $29.61

Q3 2025

Shares 241 Value ($000) $6 Avg Close $24.85 Range $22.17 - $27.12

Q2 2025

Shares 241 Value ($000) $6 Avg Close $22.35 Range $18.81 - $24.78

Q1 2025

Shares 322 Value ($000) $8 Avg Close $25.32 Range $22.65 - $27.61

Q1 2023

Shares 13 Value ($000) $0 Avg Close $23.29 Range $16.49 - $27.97

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	241	$7	$26.85	$23.52 - $29.61
Q3 2025	241	$6	$24.85	$22.17 - $27.12
Q2 2025	241	$6	$22.35	$18.81 - $24.78
Q1 2025	322	$8	$25.32	$22.65 - $27.61
Q1 2023	13	$0	$23.29	$16.49 - $27.97