Form 4: Director Steven Gardner Boosts COLB Stake Post-Merger

Columbia Banking System Director Steven Gardner acquired over 584,000 shares of COLB common stock following the acquisition of Pacific Premier Bancorp.

Summary

• Steven R. Gardner, a Director of Columbia Banking System, Inc. (COLB), acquired a total of 584,096 shares of COLB common stock.
• The acquisition occurred on August 31, 2025, in connection with Columbia's acquisition of Pacific Premier Bancorp, Inc.
• Gardner directly acquired 245,875 shares and indirectly acquired 338,221 shares through The Gardner Family Trust.
• Each share of Pacific Premier common stock held by Gardner was converted into 0.9150 shares of Columbia common stock, with fractional shares paid in cash.
• The transaction was made pursuant to a Rule 10b5-1(c) plan.

Sentiment

Score: 7

Explanation: The significant increase in a director's beneficial ownership following a merger suggests strong insider confidence in the combined entity's future prospects, which is generally a positive signal.

Positives

• A director significantly increased their beneficial ownership in Columbia Banking System, indicating strong insider confidence in the company's future post-merger.
• The acquisition of shares by a director through a merger conversion aligns insider interests with shareholder interests in the newly combined entity.

Future Outlook

NA

Industry Context

The acquisition of Pacific Premier Bancorp by Columbia Banking System is indicative of ongoing consolidation trends within the regional banking sector, often driven by strategies to achieve economies of scale, expand market reach, and enhance competitive positioning. This transaction strengthens Columbia's overall market presence.

Comparison to Industry Standards

• The conversion ratio of 0.9150 shares of Columbia for each Pacific Premier share is a specific term of the merger agreement, reflecting the negotiated valuation between the two entities.
• The transaction price of $0 for the acquired shares is standard for stock-for-stock merger conversions, as it represents an exchange of securities rather than a cash purchase.

Corporate Governance

Related Party Transactions

• Indirect acquisition of 338,221 shares of Common Stock by The Gardner Family Trust, which is a related party to the reporting person.

Stakeholder Impact

• Shareholders: The increase in director ownership can be viewed positively by shareholders as a sign of management's belief in the company's value post-merger.
• Employees: While not detailed in this filing, the merger of Columbia and Pacific Premier Bancorp could have broader implications for employees of both entities, including potential integration and restructuring.

Key Dates

Recommendation

While the significant increase in a director's beneficial ownership post-merger is a positive signal of insider confidence, a Form 4 filing primarily reports a transaction and does not provide comprehensive financial performance data or strategic updates to warrant a 'buy' or 'sell' recommendation. Investors should 'hold' and consider this information alongside the company's full financial reports and broader market conditions.

Keywords

Columbia Banking System, COLB, Pacific Premier Bancorp, Merger, Acquisition, Insider Trading, Form 4, Director Ownership, Stock Conversion, Banking