Columbia Banking System, Inc.
US ˙ NasdaqGS ˙ US1972361026

SecurityCOLB / Columbia Banking System, Inc.
InstitutionAllworth Financial LP
Latest Disclosed Ownership208,115 shares
Latest Disclosed Value $ 5,708,594
Allworth Financial LP reports 3.16% increase in ownership of COLB / Columbia Banking System, Inc.

On May 14, 2026 - Allworth Financial LP filed a 13F-HR form disclosing ownership of 208,115 shares of Columbia Banking System, Inc. (US:COLB) valued at $5,708,594 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 201,736 shares of Columbia Banking System, Inc.. This represents a change in shares of 3.16% during the quarter. The current value of the position is $5,950,008 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)
2026-05-14 2026-03-31 13F COLUMBIA BKG SYS COM 197236102 208,115 6,379 3.16 5,709 1.24 0.0231
2026-02-05 2025-12-31 13F COLUMBIA BKG SYS COM 197236102 201,736 1,606 0.80 5,639 9.45 0.0231
2025-12-02 2025-09-30 13F COLUMBIA BKG SYS COM 197236102 200,130 917 0.46 5,151 10.61 0.0227
2025-08-07 2025-06-30 13F COLUMBIA BKG SYS COM 197236102 199,213 6,465 3.35 4,658 3.63 0.0223
2025-04-30 2025-03-31 13F COLUMBIA BKG SYS COM 197236102 192,748 21,293 12.42 4,495 -8.88 0.0253
2025-01-30 2024-12-31 13F COLUMBIA BKG SYS COM 197236102 171,455 -4,083 -2.33 4,933 7.62 0.0271
2024-10-23 2024-09-30 13F COLUMBIA BKG SYS COM 197236102 175,538 458 0.26 4,583 12.36 0.0279
2024-07-24 2024-06-30 13F COLUMBIA BKG SYS COM 197236102 175,080 13,256 8.19 4,079 30.28 0.0263
2024-04-25 2024-03-31 13F COLUMBIA BKG SYS COM 197236102 161,824 160,828 16,147.39 3,131 11,942.31 0.0221
2024-01-24 2023-12-31 13F COLUMBIA BKG SYS COM 197236102 996 85 9.33 27 44.44 0.0002
2023-10-31 2023-09-30 13F COLUMBIA BKG SYS COM 197236102 911 -20 -2.15 18 0.00 0.0002
2023-07-18 2023-06-30 13F COLUMBIA BKG SYS COM 197236102 931 -97 -9.44 19 -18.18 0.0002
2023-04-18 2023-03-31 13F COLUMBIA BKG SYS COM 197236102 1,028 1,028 22 0.0002
2021-08-02 2021-06-30 13F COLUMBIA BKG SYS COM 197236102 0 -2,555 -100.00 0 -100.00
2021-04-29 2021-03-31 13F COLUMBIA BKG SYS COM 197236102 2,555 2,555 110 0.0023
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.