COLUMBIA BKG SYS INC

Ticker: COLB CUSIP: 197236102 Class: Common Stock

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q4 2025

Shares 283,228 Value ($000) $7,916 Avg Close $26.85 Range $23.52 - $29.61

Q3 2025

Shares 279,769 Value ($000) $7,201 Avg Close $24.85 Range $22.17 - $27.12

Q2 2025

Shares 193,729 Value ($000) $4,529 Avg Close $22.35 Range $18.81 - $24.78

Q1 2025

Shares 193,729 Value ($000) $4,832 Avg Close $25.32 Range $22.65 - $27.61

Q4 2024

Shares 195,942 Value ($000) $5,292 Avg Close $26.94 Range $23.43 - $30.73

Q3 2024

Shares 198,105 Value ($000) $5,173 Avg Close $22.09 Range $17.58 - $24.95

Q2 2024

Shares 203,632 Value ($000) $4,050 Avg Close $17.32 Range $15.45 - $18.88

Q1 2024

Shares 209,246 Value ($000) $4,049 Avg Close $18.38 Range $15.54 - $24.11

Q4 2023

Shares 221,084 Value ($000) $5,899 Avg Close $19.53 Range $15.67 - $24.93

Q3 2023

Shares 230,636 Value ($000) $4,682 Avg Close $18.00 Range $15.99 - $20.33

Q2 2023

Shares 245,697 Value ($000) $4,983 Avg Close $17.89 Range $14.76 - $20.57

Q1 2023

Shares 260,215 Value ($000) $5,574 Avg Close $23.29 Range $16.49 - $27.97

Q4 2022

Shares 29,094 Value ($000) $877 Avg Close $26.45 Range $23.68 - $29.63

Q3 2022

Shares 27,983 Value ($000) $808 Avg Close $24.81 Range $22.71 - $27.11

Q2 2022

Shares 101,092 Value ($000) $2,896 Avg Close $24.00 Range $22.05 - $26.58

Q1 2022

Shares 100,136 Value ($000) $3,231 Avg Close $28.29 Range $25.94 - $30.41

Q4 2021

Shares 108,927 Value ($000) $3,564 Avg Close $27.76 Range $24.13 - $32.46

Q3 2021

Shares 106,456 Value ($000) $4,044 Avg Close $28.29 Range $25.95 - $31.70

Q2 2021

Shares 99,227 Value ($000) $3,826 Avg Close $33.46 Range $30.04 - $35.35

Q1 2021

Shares 108,278 Value ($000) $4,666 Avg Close $34.13 Range $27.00 - $39.77

Q4 2020

Shares 108,562 Value ($000) $3,897 Avg Close $24.08 Range $18.04 - $28.07

Q3 2020

Shares 108,264 Value ($000) $2,582 Avg Close $21.23 Range $17.46 - $24.83

Q2 2020

Shares 108,264 Value ($000) $3,069 Avg Close $19.36 Range $14.61 - $23.93

Q1 2020

Shares 109,584 Value ($000) $2,937 Avg Close $26.37 Range $16.50 - $30.72

Q4 2019

Shares 110,127 Value ($000) $4,481 Avg Close $28.93 Range $25.93 - $30.83

Q3 2019

Shares 114,563 Value ($000) $4,227 Avg Close $26.32 Range $24.40 - $28.14

Q2 2019

Shares 113,195 Value ($000) $4,095 Avg Close $25.85 Range $23.83 - $27.76

Q1 2019

Shares 111,989 Value ($000) $3,661 Avg Close $26.24 Range $22.24 - $28.02

Q4 2018

Shares 114,559 Value ($000) $4,157 Avg Close $26.74 Range $22.25 - $29.45

Q3 2018

Shares 111,898 Value ($000) $4,338 Avg Close $29.39 Range $27.14 - $30.95

Q2 2018

Shares 111,938 Value ($000) $4,578 Avg Close $30.05 Range $27.72 - $31.69

Q1 2018

Shares 109,913 Value ($000) $4,611 Avg Close $30.33 Range $27.89 - $32.56

Q4 2017

Shares 113,766 Value ($000) $4,942 Avg Close $30.37 Range $28.50 - $33.50

Q3 2017

Shares 43,226 Value ($000) $1,820 Avg Close $26.76 Range $24.74 - $29.77

Q2 2017

Shares 53,158 Value ($000) $2,118 Avg Close $26.82 Range $24.90 - $28.62

Q1 2017

Shares 64,388 Value ($000) $2,510 Avg Close $27.57 Range $24.96 - $31.16

Q4 2016

Shares 119,788 Value ($000) $5,352 Avg Close $25.64 Range $21.40 - $30.88

Q3 2016

Shares 122,988 Value ($000) $4,024 Avg Close $20.96 Range $17.45 - $22.43

Q2 2016

Shares 121,988 Value ($000) $3,423 Avg Close $19.43 Range $17.42 - $20.90

Q1 2016

Shares 122,545 Value ($000) $3,667 Avg Close $19.19 Range $17.45 - $20.84

Q4 2015

Shares 106,946 Value ($000) $3,477 Avg Close $21.56 Range $18.94 - $23.51

Q3 2015

Shares 105,167 Value ($000) $3,282 Avg Close $20.19 Range $18.36 - $21.62

Q2 2015

Shares 105,367 Value ($000) $3,429 Avg Close $19.28 Range $17.74 - $21.20

Q1 2015

Shares 105,088 Value ($000) $3,044 Avg Close $17.14 Range $15.27 - $18.50

Q4 2014

Shares 106,888 Value ($000) $2,951 Avg Close $16.65 Range $14.67 - $17.82

Q3 2014

Shares 97,073 Value ($000) $2,408 Avg Close $15.78 Range $14.87 - $16.51

Q2 2014

Shares 96,022 Value ($000) $2,526 Avg Close $15.72 Range $14.32 - $17.62

Q1 2014

Shares 92,822 Value ($000) $2,647 Avg Close $16.21 Range $14.88 - $18.25

Q4 2013

Shares 92,422 Value ($000) $2,543 Avg Close $15.66 Range $14.02 - $16.97

Q3 2013

Shares 91,722 Value ($000) $2,266 Avg Close $14.59 Range $13.80 - $15.23

Q2 2013

Shares 88,918 Value ($000) $2,117 Avg Close $12.82 Range $11.72 - $14.17

Q1 2013

Shares 69,017 Value ($000) $1,517 Avg Close $11.92 Range $10.74 - $13.04

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	283,228	$7,916	$26.85	$23.52 - $29.61
Q3 2025	279,769	$7,201	$24.85	$22.17 - $27.12
Q2 2025	193,729	$4,529	$22.35	$18.81 - $24.78
Q1 2025	193,729	$4,832	$25.32	$22.65 - $27.61
Q4 2024	195,942	$5,292	$26.94	$23.43 - $30.73
Q3 2024	198,105	$5,173	$22.09	$17.58 - $24.95
Q2 2024	203,632	$4,050	$17.32	$15.45 - $18.88
Q1 2024	209,246	$4,049	$18.38	$15.54 - $24.11
Q4 2023	221,084	$5,899	$19.53	$15.67 - $24.93
Q3 2023	230,636	$4,682	$18.00	$15.99 - $20.33
Q2 2023	245,697	$4,983	$17.89	$14.76 - $20.57
Q1 2023	260,215	$5,574	$23.29	$16.49 - $27.97
Q4 2022	29,094	$877	$26.45	$23.68 - $29.63
Q3 2022	27,983	$808	$24.81	$22.71 - $27.11
Q2 2022	101,092	$2,896	$24.00	$22.05 - $26.58
Q1 2022	100,136	$3,231	$28.29	$25.94 - $30.41
Q4 2021	108,927	$3,564	$27.76	$24.13 - $32.46
Q3 2021	106,456	$4,044	$28.29	$25.95 - $31.70
Q2 2021	99,227	$3,826	$33.46	$30.04 - $35.35
Q1 2021	108,278	$4,666	$34.13	$27.00 - $39.77
Q4 2020	108,562	$3,897	$24.08	$18.04 - $28.07
Q3 2020	108,264	$2,582	$21.23	$17.46 - $24.83
Q2 2020	108,264	$3,069	$19.36	$14.61 - $23.93
Q1 2020	109,584	$2,937	$26.37	$16.50 - $30.72
Q4 2019	110,127	$4,481	$28.93	$25.93 - $30.83
Q3 2019	114,563	$4,227	$26.32	$24.40 - $28.14
Q2 2019	113,195	$4,095	$25.85	$23.83 - $27.76
Q1 2019	111,989	$3,661	$26.24	$22.24 - $28.02
Q4 2018	114,559	$4,157	$26.74	$22.25 - $29.45
Q3 2018	111,898	$4,338	$29.39	$27.14 - $30.95
Q2 2018	111,938	$4,578	$30.05	$27.72 - $31.69
Q1 2018	109,913	$4,611	$30.33	$27.89 - $32.56
Q4 2017	113,766	$4,942	$30.37	$28.50 - $33.50
Q3 2017	43,226	$1,820	$26.76	$24.74 - $29.77
Q2 2017	53,158	$2,118	$26.82	$24.90 - $28.62
Q1 2017	64,388	$2,510	$27.57	$24.96 - $31.16
Q4 2016	119,788	$5,352	$25.64	$21.40 - $30.88
Q3 2016	122,988	$4,024	$20.96	$17.45 - $22.43
Q2 2016	121,988	$3,423	$19.43	$17.42 - $20.90
Q1 2016	122,545	$3,667	$19.19	$17.45 - $20.84
Q4 2015	106,946	$3,477	$21.56	$18.94 - $23.51
Q3 2015	105,167	$3,282	$20.19	$18.36 - $21.62
Q2 2015	105,367	$3,429	$19.28	$17.74 - $21.20
Q1 2015	105,088	$3,044	$17.14	$15.27 - $18.50
Q4 2014	106,888	$2,951	$16.65	$14.67 - $17.82
Q3 2014	97,073	$2,408	$15.78	$14.87 - $16.51
Q2 2014	96,022	$2,526	$15.72	$14.32 - $17.62
Q1 2014	92,822	$2,647	$16.21	$14.88 - $18.25
Q4 2013	92,422	$2,543	$15.66	$14.02 - $16.97
Q3 2013	91,722	$2,266	$14.59	$13.80 - $15.23
Q2 2013	88,918	$2,117	$12.82	$11.72 - $14.17
Q1 2013	69,017	$1,517	$11.92	$10.74 - $13.04