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Who owns Columbia Banking System (COLB) stock

516 funds reported Columbia Banking System (COLB) shares in their latest 13F filings, worth $9.1B in all. The largest holder is BlackRock ($880M). Last quarter 229 funds added to their stakes and 227 cut them. Members of Congress and other officials disclosed 2 trades (0 buys, 2 sales).

Largest holders of COLB (13F)Largest holders of COLB (13F)BlackRock$880MVanguard Group$829MT. Rowe Price Investment Manageme…$501MDimensional Fund Advisors LP$446MVanguard Portfolio Management LLC$438MVanguard Capital Management LLC$419MState Street$407MWellington Management Group LLP$375MCharles Schwab Investment Managem…$353MPrice T Rowe Associates$317M

Largest holders (13F)

FundSharesValueChangeQuarter
BlackRock27,470,920$880Mincrease2026-06-30
Vanguard Group29,677,731$829Mdecrease2025-12-31
T. Rowe Price Investment Management15,633,948$501Mdecrease2026-06-30
Dimensional Fund Advisors LP13,906,292$446Mincrease2026-06-30
Vanguard Portfolio Management LLC13,678,183$438Mdecrease2026-06-30
Vanguard Capital Management LLC13,072,525$419Mdecrease2026-06-30
State Street12,694,096$407Mincrease2026-06-30
Wellington Management Group LLP11,686,430$375Mdecrease2026-06-30
Charles Schwab Investment Management11,025,378$353Mincrease2026-06-30
Price T Rowe Associates9,879,006$317Mincrease2026-06-30
American Century Companies7,903,579$253Mdecrease2026-06-30
Franklin Resources6,101,719$196Mdecrease2026-06-30
Massachusetts Financial Services5,958,440$193Mdecrease2026-06-30
Geode Capital Management, LLC5,795,510$186Mdecrease2026-06-30
HoldCo Asset Management, LP5,722,786$183Munchanged2026-06-30

Trades by Congress and other officials

DateWhoTradeAmount
2026-03-05Josh Gottheimersale$1K–$15K
2026-01-15Gilbert Cisnerossale$15K–$50K

Columbia Banking System's latest quarter

Columbia Banking System, Q3 2026: revenue $695M (+19% year over year), operating margin 42.0%, net earnings $220M, operating cash flow $365M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most COLB stock?

By the latest 13F filings: BlackRock ($880M); Vanguard Group ($829M); T. Rowe Price Investment Management ($501M); Dimensional Fund Advisors LP ($446M); Vanguard Portfolio Management LLC ($438M).

Has Congress traded COLB stock?

Officials disclosed 2 trades on file: 0 buys and 2 sales. The latest: Josh Gottheimer, sale on 2026-03-05.

What is the short interest in COLB?

11,604,063 shares were sold short at the 2026-10-15 settlement, 4.96% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.