COLB
COLUMBIA BANKING SYSTEM INC
Latest close $31.35 as of Aug 5, 2026
Schedule 13G/13D reports beneficial ownership at an observation date. “Accumulation” or “reduction” is inferred
from changes in reported shares when available; it is not a list of individual trades or exact execution prices.
Form 13F rows are quarter-end holding context only and do not establish an exact entry date.
Free access includes current parsed ownership filings, reported share changes, and ownership-percentage changes.
Significance scoring, disclosure-speed analysis, confirmation/divergence signals, and signal alerts require Investor or Pro.
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Beneficial ownership filing history
Showing 3 of 5 parsed filing(s) · 2 older require more history access| Holder | Observed / filed | Reported change | Shares | Ownership | Observation | Filing | Latest |
|---|---|---|---|---|---|---|---|
| State Street CIK0000093751 | Mar 31, 2025 observed May 13, 2025 filed · 43d Initial Schedule 13G | Initial Schedule 13G | 10.1M -827.4K | 12.00% 0.00 pts | $24.94 | $25.61 | $31.35 |
| State Street CIK0000093751 | Dec 31, 2024 observed Feb 4, 2025 filed · 35d Initial Schedule 13G | Initial Schedule 13G | 10.9M | 12.00% | $27.01 | $28.04 | $31.35 |
| T. Rowe Price Investment Management CIK0001897612 | Sep 30, 2024 observed Nov 14, 2024 filed · 45d Initial Schedule 13G | Initial Schedule 13G | 12.6M | 6.00% | $31.12 | $31.35 |