Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in COLB held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 27.1M | $742.4M | +1.3% | 11.371% | 0.01% |
| 2 | WELLINGTON MANAGEMENT GROUP LLP | 14.9M | $409.9M | -17.5% | 6.278% | 0.08% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 14.3M | $393.3M | — | 6.024% | 0.02% |
| 4 | DIMENSIONAL FUND ADVISORS LP | 13.5M | $371.7M | +3.1% | 5.693% | 0.08% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 13.2M | $362.8M | — | 5.556% | 0.01% |
| 6 | STATE STREET CORP | 12.5M | $342.2M | -2.6% | 5.242% | 0.01% |
| 7 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 10.4M | $286.4M | -16.9% | 4.386% | 0.04% |
| 8 | AMERICAN CENTURY COMPANIES INC | 9.7M | $267.1M | +3.1% | 4.090% | 0.14% |
| 9 | Bank of New York Mellon Corp | 7.4M | $203.3M | -0.1% | 3.114% | 0.04% |
| 10 | FRANKLIN RESOURCES INC | 6.2M | $169.7M | +4.5% | 2.599% | 0.04% |
| 11 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 6.0M | $166.8M | -6.1% | 2.531% | 0.06% |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | 5.9M | $160.9M | +2.9% | 2.464% | 0.01% |
| 13 | HoldCo Asset Management, L.P. | 5.7M | $157.0M | 0.0% | 2.404% | 11.68% |
| 14 | MORGAN STANLEY | 4.9M | $134.5M | -16.7% | 2.060% | 0.01% |
| 15 | SILVERCREST ASSET MANAGEMENT GROUP LLC | 4.1M | $113.8M | -3.7% | 1.742% | 0.82% |
| 16 | Invesco Ltd. | 4.1M | $112.4M | -1.8% | 1.721% | 0.02% |
| 17 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 3.9M | $107.0M | -0.2% | 1.639% | 0.18% |
| 18 | UBS Group AG | 3.5M | $96.7M | -17.3% | 1.481% | 0.01% |
| 19 | Channing Capital Management, LLC | 3.2M | $88.5M | -3.2% | 1.355% | 2.27% |
| 20 | CITADEL ADVISORS LLC | 3.2M | $87.7M | +17.7% | 1.344% | 0.04% |
| 21 | NORTHERN TRUST CORP | 2.6M | $71.7M | +2.8% | 1.099% | 0.01% |
| 22 | Epoch Investment Partners, Inc. | 2.5M | $69.4M | -1.6% | 1.064% | 0.42% |
| 23 | Fisher Asset Management, LLC | 2.3M | $63.7M | -7.7% | 0.976% | 0.02% |
| 24 | COOKE & BIELER LP | 2.2M | $59.0M | -4.6% | 0.904% | 0.67% |
| 25 | MANUFACTURERS LIFE INSURANCE COMPANY, THE | 2.1M | $56.8M | +15.9% | 0.870% | 0.05% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in COLB — a direct measure of their conviction.
Filings activity in COLB during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 513 | +4.1% | 90.66% | 6.59 pp | $6.76B | 6.8% |
| Q4 2025 | 493 | +6.7% | 97.25% | +7.76 pp | $7.25B | +8.7% |
| Q3 2025 | 462 | +15% | 89.49% | +30.42 pp | $6.67B | +51% |
| Q2 2025 | 403 | +2.3% | 59.07% | +0.19 pp | $4.40B | +0.3% |
| Q1 2025 | 394 | +0.5% | 58.88% | 4.30 pp | $4.39B | 6.8% |
| Q4 2024 | 392 | +7.1% | 63.18% | +2.38 pp | $4.71B | +3.9% |
| Q3 2024 | 366 | +1.7% | 60.80% | +13.73 pp | $4.53B | +29% |
| Q2 2024 | 360 | — | 47.07% | — | $3.51B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying COLB stock.
Based on Q1 2026 13F filings, institutional ownership of Columbia Banking System, Inc. stands at 90.7%, held across 513 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of COLB, with approximately 27,065,001 shares worth $0.74B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of COLB, including CITADEL ADVISORS LLC, Fisher Asset Management, LLC.
Our composite Smart Money Score for COLB is 47 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
73 institutions opened new positions in COLB during Q1 2026, while 53 fully exited. 154 added to existing positions and 281 trimmed.
COLB institutional ownership fell by 6.59 percentage points quarter-over-quarter, with a net change of +20 holders.
The top 10 institutions account for 52.5% of all reported 13F value in COLB, and the top 25 account for 75.4%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Columbia Banking System, Inc. (COLB) Institutional Ownership