Columbia Banking System, Inc.
Columbia Banking System, Inc. (COLB) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · COLB · as of Sep 30, 2025
Ownership Breakdown
485
Institutional Holders
▲ 66 vs Q2
$7.37B
Total Inst. Value
▲ $2.49B vs Q2
238.02M
Shares Outstanding
freeFloat 99.24%
286.22M
13F Shares Held
▲ 77.32M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
COLB largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC state commercial banks | 29.85M | 12.55% | 12.55% | $768.37B | Nov 7, 2025 | ▲ 8.73M |
BLACKROCK, INC. state commercial banks | 26.93M | 11.32% | 11.32% | $693.30B | Nov 12, 2025 | ▲ 7.94M |
T. ROWE PRICE INVESTMENT MANAGEMENT, INC. state commercial banks | 17.38M | 7.31% | 7.31% | $447.39B | Nov 14, 2025 | ▲ 4.13M |
WELLINGTON MANAGEMENT GROUP LLP state commercial banks | 13.78M | 5.79% | 5.79% | $354.75B | Nov 14, 2025 | ▲ 7.92M |
STATE STREET CORP state commercial banks | 13.41M | 5.64% | 5.64% | $345.11B | Nov 14, 2025 | ▲ 3.29M |
DIMENSIONAL FUND ADVISORS LP state commercial banks | 13.12M | 5.51% | 5.51% | $337.61B | Nov 12, 2025 | ▲ 5.31M |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC state commercial banks | 12.40M | 5.21% | 5.21% | $319.20B | Nov 10, 2025 | ▲ 4.58M |
AMERICAN CENTURY COMPANIES INC state commercial banks | 10.02M | 4.21% | 4.21% | $257.82B | Nov 12, 2025 | ▲ 1.07M |
MORGAN STANLEY state commercial banks | 8.34M | 3.99% | 3.99% | $214.73B | May 27, 2026 | ▲ 164.2K |
JPMORGAN CHASE & CO state commercial banks | 7.54M | 3.60% | 3.60% | $193.98B | Nov 26, 2025 | ▲ 929.9K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
38
Increased
+70.19M shares2
New Positions
first time holders9
Decreased
−1.89M shares0
Sold Out
fully exitedNet shares change (top 50)
+68.30M
+70.19M / −1.89M
Net new holders
+31
2 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
COLB insider trading · insider activity
Source: SEC Form 4
0
Buy transactions
1
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Varnado Anddria director | May 14, 2026 | Award | 3,949 | — | — | 30.9K | Form 4 ↗ |
Terry Hilliard C. III director | May 14, 2026 | Award | 3,949 | — | — | 55.5K | Form 4 ↗ |
STUDENMUND JAYNIE M director | May 14, 2026 | Award | 3,949 | — | — | 21.8K | Form 4 ↗ |
SEATON ELIZABETH WHITEHEAD director | May 14, 2026 | Award | 3,949 | — | — | 3.9K | Form 4 ↗ |
SCHULTZ JOHN F director | May 14, 2026 | Award | 3,949 | — | — | 50.4K | Form 4 ↗ |
MITCHELL M CHRISTIAN director | May 14, 2026 | Award | 3,949 | — | — | 41.9K | Form 4 ↗ |
MACHUCA LUIS director | May 14, 2026 | Award | 3,949 | — | — | 30.0K | Form 4 ↗ |
Lund Randal Lee director | May 14, 2026 | Award | 3,949 | — | — | 27.7K | Form 4 ↗ |
Forrest Eric director | May 14, 2026 | Award | 3,949 | — | — | 36.4K | Form 4 ↗ |
Finkelstein Mark A director | May 14, 2026 | Award | 3,949 | — | — | 35.6K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Columbia Banking System, Inc. (COLB) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 0.76%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Columbia Banking System, Inc. is VANGUARD GROUP INC, holding approximately 29.85 million shares — equal to 12.55% of outstanding shares — as of September 30, 2025.
A total of 485 institutional investors currently hold COLB stock, with a combined institutional value of approximately $7.37 billion as of the most recent 13F filing period.
Frequently asked questions
COLB ownershipColumbia Banking System, Inc. (COLB) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is VANGUARD GROUP INC with a 12.55% stake. Company insiders hold 0.76%. Data sourced from SEC Form 13F as of September 30, 2025.