Rafferty Asset Management Boosts Stake in Columbia Banking System

Asset management firm increases holdings in regional financial services provider

Published on Mar. 2, 2026

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Rafferty Asset Management LLC, an investment management firm, has increased its stake in Columbia Banking System, Inc. (NASDAQ:COLB) by 37.6% during the third quarter of 2025. The firm now owns approximately 411,425 shares, or 0.20%, of the regional financial services provider's stock.

Why it matters

This move by Rafferty Asset Management suggests the firm sees growth potential in Columbia Banking System, a regional bank with a strong presence in the Pacific Northwest. The increased stake could signal confidence in the bank's performance and future prospects.

The details

According to a filing with the Securities and Exchange Commission (SEC), Rafferty Asset Management acquired an additional 112,445 shares of Columbia Banking System during the third quarter, bringing its total holdings to 411,425 shares. The firm now owns approximately 0.20% of the company's outstanding stock, valued at around $10.59 million as of the most recent SEC filing.

  • Rafferty Asset Management increased its stake in Columbia Banking System during the third quarter of 2025.

The players

Rafferty Asset Management LLC

An investment management firm that has increased its holdings in Columbia Banking System, Inc.

Columbia Banking System, Inc.

A regional financial services provider with a strong presence in the Pacific Northwest.

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The takeaway

The increased stake by Rafferty Asset Management in Columbia Banking System suggests the firm sees growth potential in the regional bank, which could signal positive prospects for the company's future performance.