Columbia Banking System, Inc.
US ˙ NasdaqGS ˙ US1972361026

SecurityCOLB / Columbia Banking System, Inc.
InstitutionEasterly Investment Partners Llc
Latest Disclosed Ownership725,392 shares
Latest Disclosed Value $ 19,812,699
Easterly Investment Partners Llc reports 1.71% increase in ownership of COLB / Columbia Banking System, Inc.

On May 11, 2026 - Easterly Investment Partners Llc filed a 13F-HR form disclosing ownership of 725,392 shares of Columbia Banking System, Inc. (US:COLB) valued at $19,897,503 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 713,206 shares of Columbia Banking System, Inc.. This represents a change in shares of 1.71% during the quarter. The current value of the position is $20,738,957 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)
2026-05-11 2026-03-31 13F COLUMBIA BKG SYS COM 197236102 725,392 12,186 1.71 19,813 -0.61 1.5160
2026-02-10 2025-12-31 13F COLUMBIA BKG SYS COM 197236102 713,206 68,388 10.61 19,934 20.11 1.2235
2025-11-12 2025-09-30 13F COLUMBIA BKG SYS COM 197236102 644,818 -59,108 -8.40 16,598 0.85 1.1228
2025-07-29 2025-06-30 13F COLUMBIA BKG SYS COM 197236102 703,926 210,506 42.66 16,458 33.74 1.1802
2025-05-02 2025-03-31 13F COLUMBIA BKG SYS COM 197236102 493,420 6,429 1.32 12,306 -6.45 1.0244
2025-02-12 2024-12-31 13F COLUMBIA BKG SYS COM 197236102 486,991 -15,560 -3.10 13,154 0.24 1.0329
2024-11-01 2024-09-30 13F COLUMBIA BKG SYS COM 197236102 502,551 255,578 103.48 13,122 167.12 1.0518
2024-07-25 2024-06-30 13F COLUMBIA BKG SYS COM 197236102 246,973 103,625 72.29 4,912 77.14 0.4317
2024-05-03 2024-03-31 13F COLUMBIA BKG SYS COM 197236102 143,348 -116,274 -44.79 2,774 -59.96 0.2119
2024-02-14 2023-12-31 13F COLUMBIA BKG SYS COM 197236102 259,622 4,073 1.59 6,927 33.53 0.7406
2023-11-13 2023-09-30 13F COLUMBIA BKG SYS COM 197236102 255,549 52,446 25.82 5,188 25.96 0.5708
2023-11-13 2023-06-30 13F COLUMBIA BKG SYS COM 197236102 203,103 150,405 285.41 4,119 265.07 0.3646
2023-11-13 2023-03-31 13F/A-1 COLUMBIA BKG SYS COM 197236102 52,698 52,698 1,129 0.0993
2023-05-02 2023-03-31 13F COLUMBIA BKG SYS COM 197236102 53,788 53,788 1,152 0.0796
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.