COLUMBIA BANKING SYSTEM, INC. (COLB) Stock
3 members of Congress disclosed 4 trades in COLB since 2023: 2 purchases and 2 sales, most recently Josh Gottheimer (sale, Mar 5, 2026). 5 of the hedge funds AlphaScala tracks reported COLB in 13F filings for the quarter ended Sep 30, 2026; the largest reported position is D.E. Shaw's at $28.77M. Company insiders reported 0 open-market buys and 7 sales on SEC Form 4 in the 90 days to Nov 6, 2026.
Which members of Congress traded COLUMBIA BANKING SYSTEM, INC. (COLB)?
Most recent: Josh Gottheimer (sale, Mar 5, 2026); records start Apr 10, 2023.
| Politician | Trade date | Type | Amount |
|---|---|---|---|
| Josh Gottheimer D-NJ · House | 2026-03-05 | sale | $1k – $15k |
| Gil Cisneros D-CA · House | 2026-01-15 | sale | $15k – $50k |
| Gil Cisneros D-CA · House | 2025-10-03 | purchase | $1k – $15k |
| Dan Goldman D-NY · House | 2023-04-10 | purchase | $15k – $50k |
From STOCK Act periodic transaction reports. House filings as of Nov 5, 2026.
See all COLB political trades →Which hedge funds own COLB?
From 13F filings| Fund | Shares Held | Position Value | Change vs prior Q |
|---|---|---|---|
| D.E. Shaw David Shaw | 898K | $28.77M | NEW |
| Bridgewater Associates Ray Dalio | 466K | $14.95M | +17% |
| Renaissance Technologies Jim Simons (founder) | 385K | $12.32M | +172% |
| Hussman Investment Trust John Hussman | 42K | $1.20M | NEW |
| Marshall Wace | 21K | $688.5K | -70% |
13F holdings as of Sep 30, 2026
Explore all tracked funds →Are COLUMBIA BANKING SYSTEM, INC. insiders buying or selling?
SEC Form 4 filings| Date | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| Oct 29, 26 | Gardner Steven R | Director | SELL | 484 | $15K |
| Oct 29, 26 | Gardner Steven R | Director | SELL | 100 | $3K |
| Oct 29, 26 | Gardner Steven R | Director | SELL | 5.0K | $156K |
| Oct 29, 26 | Gardner Steven R | Director | SELL | 200 | $6K |
| Oct 29, 26 | Gardner Steven R | Director | SELL | 2.2K | $67K |
| Oct 29, 26 | Gardner Steven R | Director | SELL | 322 | $10K |
| Oct 29, 26 | Gardner Steven R | Director | SELL | 2.3K | $70K |
SEC Form 4 filings as of Nov 6, 2026
See cluster-buy signals across all tickers →COLB price chart
Powered by TradingViewWhat does COLUMBIA BANKING SYSTEM, INC. do?
Columbia Banking System, Inc. is a bank holding company that provides a comprehensive range of financial services through its primary subsidiary, Umpqua Bank. It offers commercial banking, consumer banking, and wealth management solutions to small and medium-sized businesses, professionals, and individuals across eight western states, including Oregon, Washington, California, Idaho, Nevada, Arizona, Colorado, and Utah. The company delivers deposit products such as checking and savings accounts, money market accounts, certificates of deposit, and insured cash sweep solutions. Its lending portfolio includes commercial lines of credit, term loans, accounts receivable financing, inventory financing, and residential mortgages. Wealth management services are provided through Columbia Wealth Advisors and Columbia Trust Company, encompassing financial planning, investments, estate planning, agency, and fiduciary services. Columbia Banking System, Inc. emphasizes relationship banking via traditional branches and digital channels, with a focus on diversification across loan types, customer segments, and geographic regions to support its operations in the regional banking sector. Founded in 1993 and headquartered in Tacoma, Washington, it plays a key role in serving the financial needs of its western U.S. footprint.