Canonical: https://ownershiptrace.com/13f/companies/965

# Who owns COLUMBIA BANKING SYSTEM, INC. (COLB)? Elite investor 13F holders

8 tracked elite investors reported holding COLUMBIA BANKING SYSTEM, INC as of 2026-06-30, including HoldCo Asset Management, Pzena Investment Management, D.E. Shaw, Bridgewater Associates, First Eagle Investment Management. Who bought, trimmed or exited each quarter, with links to the original SEC 13F filings.

8 tracked investors currently reported holding · Latest report period: 2026-06-30 · Financials · Banks

Columbia Banking System, Inc. operates as the bank holding company for Columbia Bank that provides banking, private banking, mortgage, and other financial services in the United States. The company offers deposit products, including business, non-interest-bearing checking, interest-bearing checking and savings, money market, insured cash sweep and other investment sweep solutions, and…

## Reported holders and securities, including exits (up to 20)

| Investor | Security | Instrument | Report period | Filed | Value | Quantity | Units | Change | Source |
|  --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| [HoldCo Asset Management](https://ownershiptrace.com/13f/investors/116) | COLUMBIA BKG SYS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 183415291.00 USD | 5722786.000000 | Shares | hold | [Original filing](https://www.sec.gov/Archives/edgar/data/1724246/0001724246-26-000004-index.html) |
| [Pzena Investment Management](https://ownershiptrace.com/13f/investors/64) | COLUMBIA BKG SYS INC | SHARE | 2026-06-30 | 2026-08-07 00:00:00 | 68244770.00 USD | 2129322.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1027796/0001027796-26-000049-index.html) |
| [D.E. Shaw](https://ownershiptrace.com/13f/investors/98) | COLUMBIA BKG SYS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 28771638.00 USD | 897711.000000 | Shares | buy | [Original filing](https://www.sec.gov/Archives/edgar/data/1009207/0001104659-26-097217-index.html) |
| [Bridgewater Associates](https://ownershiptrace.com/13f/investors/8) | COLUMBIA BKG SYS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 14946101.00 USD | 466337.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1350694/0001350694-26-000003-index.html) |
| [First Eagle Investment Management](https://ownershiptrace.com/13f/investors/32) | COLUMBIA BKG SYS INC | SHARE | 2026-06-30 | 2026-08-24 00:00:00 | 12326430.00 USD | 384600.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1325447/0001325447-26-000033-index.html) |
| [Renaissance Technologies LLC](https://ownershiptrace.com/13f/investors/63) | COLUMBIA BKG SYS INC | SHARE | 2026-06-30 | 2026-08-13 00:00:00 | 12324635.00 USD | 384544.000000 | Shares | add | [Original filing](https://www.sec.gov/Archives/edgar/data/1037389/0001037389-26-000059-index.html) |
| [Tudor Investment](https://ownershiptrace.com/13f/investors/94675) | COLUMBIA BKG SYS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 7199552.00 USD | 224635.000000 | Shares | buy | [Original filing](https://www.sec.gov/Archives/edgar/data/923093/0000902664-26-003485-index.html) |
| [GAMCO](https://ownershiptrace.com/13f/investors/137) | COLUMBIA BKG SYS INC | SHARE | 2026-06-30 | 2026-08-12 00:00:00 | 1653620.00 USD | 51595.000000 | Shares | reduce | [Original filing](https://www.sec.gov/Archives/edgar/data/807249/0001140361-26-032508-index.html) |
| [Ancora Advisors / Ancora Holdings](https://ownershiptrace.com/13f/investors/101) | COLUMBIA BKG SYS INC | SHARE | 2026-06-30 | 2026-08-14 00:00:00 | 0.00 USD | 0.000000 | Shares | exited | [Original filing](https://www.sec.gov/Archives/edgar/data/1446114/0001446114-26-000012-index.html) |

Public disclosures can be delayed, incomplete, or amended. Report period describes a position date; transaction date describes a reported transaction; filed describes submission. A recent filing or page update does not establish a current holding. A dash means unavailable or not comparable, not zero.

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