Columbia Banking System, Inc.
US ˙ NasdaqGS ˙ US1972361026

SecurityCOLB / Columbia Banking System, Inc.
InstitutionCreative Planning
Latest Disclosed Ownership266,198 shares
Latest Disclosed Value $ 7,301,809
Creative Planning reports 41.50% increase in ownership of COLB / Columbia Banking System, Inc.

On May 12, 2026 - Creative Planning filed a 13F-HR form disclosing ownership of 266,198 shares of Columbia Banking System, Inc. (US:COLB) valued at $7,301,811 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 188,128 shares of Columbia Banking System, Inc.. This represents a change in shares of 41.50% during the quarter. The current value of the position is $7,852,841 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F COLUMBIA BKG SYS COM 197236102 266,198 78,070 41.50 7,302 38.86 0.0050
2026-02-17 2025-12-31 13F COLUMBIA BKG SYS COM 197236102 188,128 82,844 78.69 5,258 94.02 0.0038
2025-11-14 2025-09-30 13F COLUMBIA BKG SYS COM 197236102 105,284 35,856 51.64 2,710 66.97 0.0021
2025-08-08 2025-06-30 13F COLUMBIA BKG SYS COM 197236102 69,428 2,170 3.23 1,623 -3.22 0.0014
2025-05-15 2025-03-31 13F COLUMBIA BKG SYS COM 197236102 67,258 9,855 17.17 1,677 8.19 0.0016
2025-02-14 2024-12-31 13F COLUMBIA BKG SYS COM 197236102 57,403 6,974 13.83 1,550 17.78 0.0015
2024-10-11 2024-09-30 13F COLUMBIA BKG SYS COM 197236102 50,429 8,366 19.89 1,317 57.42 0.0013
2024-08-15 2024-06-30 13F COLUMBIA BKG SYS COM 197236102 42,063 11,836 39.16 837 43.15 0.0009
2024-05-13 2024-03-31 13F COLUMBIA BKG SYS COM 197236102 30,227 13,615 81.96 585 31.83 0.0006
2024-02-14 2023-12-31 13F COLUMBIA BKG SYS COM 197236102 16,612 4,971 42.70 443 87.71 0.0008
2023-11-16 2023-09-30 13F COLUMBIA BKG SYS COM 197236102 11,641 -9,113 -43.91 236 -43.81 0.0003
2023-07-21 2023-06-30 13F COLUMBIA BKG SYS COM 197236102 20,754 277 1.35 421 -4.11 0.0006
2023-05-15 2023-03-31 13F COLUMBIA BKG SYS COM 197236102 20,477 20,477 439 0.0006
2017-10-17 2017-09-30 13F COLUMBIA BKG SYS COM 197236102 0 -121 -100.00 0 -100.00
2017-07-12 2017-06-30 13F COLUMBIA BKG SYS COM 197236102 121 0 0.00 5 0.00 0.0000
2017-04-07 2017-03-31 13F COLUMBIA BKG SYS COM 197236102 121 0 0.00 5 0.00 0.0000
2017-01-09 2016-12-31 13F COLUMBIA BKG SYS COM 197236102 121 0 0.00 5 25.00 0.0000
2016-10-12 2016-09-30 13F COLUMBIA BKG SYS COM 197236102 121 0 0.00 4 33.33 0.0000
2016-07-12 2016-06-30 13F COLUMBIA BKG SYS COM 197236102 121 0 0.00 3 -25.00 0.0000
2016-04-08 2016-03-31 13F COLUMBIA BKG SYS COM 197236102 121 0 0.00 4 0.00 0.0000
2016-01-11 2015-12-31 13F COLUMBIA BKG SYS COM 197236102 121 0 0.00 4 0.00 0.0000
2015-10-09 2015-09-30 13F COLUMBIA BKG SYS COM 197236102 121 121 0.00 4 0.0000
2015-07-09 2015-06-30 13F COLUMBIA BKG SYS COM 197236102 0 -121 -100.00 0 -100.00
2015-04-13 2015-03-31 13F COLUMBIA BKG SYS COM 197236102 121 121 4 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.