COLB — COLUMBIA BANKING SYSTEM INC - US
Public company
InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.
Sourced from SEC EDGAR public filings
Why are billionaires buying COLB?
Built from public SEC filings and public economic data. Not a recommendation.
Why? — Evidence & Confidence ▾
Of 1 tracked investors who changed their COLB position last quarter, 1 bought and 0 sold (100% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 56/100 in a Overheat regime).
- +1 tracked investor added or increased positions last quarter (Paul Tudor Jones)
- +2 tracked investors reported holding COLB at their latest filing
- +Macro Health is 56/100 in a Overheat regime — historically acceptable for this sectorsource
- −13F data is disclosed up to 45 days after quarter end — positions may have changed since
- · 13F disclosure lag (up to 45 days)
- · Tracked investors are a sample, not the whole market
- · Sector regime fit is a historical average, not a guarantee
Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 9/18/2026.
About COLUMBIA BANKING SYSTEM INC - US (COLB)
COLUMBIA BANKING SYSTEM INC - US (COLB) appears in the most recent 13F filings of 2 tracked institutional investors. The largest disclosed position is held by Izzy Englander (Millennium Management), valued at $29M. Across recent filings, tracked investors recorded 6 new positions, 2 increased, 1 reduced, and 3 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in COLB
How many top investors track COLB
Only 2 tracked investors report this position.
COLB Ownership Composition
How COLUMBIA BANKING SYSTEM INC - US is held across tracked investor types, based on reported 13F positions.
- Macro89.4%
- Multi-Strategy / Quant10.6%
Tracked investors currently reporting COLB
2 tracked investors have since exited this position — listed separately below.
- Ken GriffinJun 30, 2026Citadel AdvisorsShares26.7KValue$855.7K% Portfolio0.00%
- Paul Tudor JonesJun 30, 2026Tudor Investment CorpShares224.6KValue$7.2M% Portfolio0.01%
Previously held COLB
These investors reported COLB in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.
| Investor | Firm | Last reported shares | Value then | Last held |
|---|---|---|---|---|
| Izzy Englander | Millennium Management | 405.3K | $10.4M | Sep 30, 2025 |
| Steve Cohen | Point72 Asset Management | 66.5K | $1.7M | Sep 30, 2025 |
Recent activity
- $3.1MNov 14, 2024
- Reduced$1.9M(-39.45%)Feb 14, 2025
- Increased$12.1M(572.71%)May 15, 2025
- Increased$28.8M(153.87%)Aug 14, 2025
- New$11.7MNov 14, 2024
- Sold$0(-100.00%)Feb 14, 2025
- New$1.7MNov 14, 2025
- Sold$0(-100.00%)Feb 17, 2026
- $2.2MNov 14, 2024
- Sold$0(-100.00%)Feb 14, 2025
- $7.2MAug 14, 2026
- $5.6MMay 15, 2024
Frequently asked questions
- How many institutional investors hold COLB?
- 2 tracked institutional investors disclosed a position in COLB (COLUMBIA BANKING SYSTEM INC - US) in their most recent 13F filing.
- Who is the largest institutional holder of COLB?
- Izzy Englander, Millennium Management, holds the largest disclosed position in COLB, valued at $29M.
- Did institutional ownership of COLB increase or decrease?
- Across recent 13F filings, tracked investors recorded 6 new positions, 2 increased, 1 reduced, and 3 fully exited COLB.
- Where does this COLB ownership data come from?
- SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.