MITCHELL M CHRISTIAN 4
4 · COLUMBIA BANKING SYSTEM, INC. · Filed Sep 3, 2025
Insider Transaction Report
Form 4
MITCHELL M CHRISTIAN
Director
Transactions
- Award
Common Stock
2025-09-02+2,205→ 37,960 total - Award
Common Stock
2025-08-31+35,755→ 35,755 total
Footnotes (2)
- [F1]Acquired in connection with Columbia Banking System, Inc.'s ("Columbia") acquisition of Pacific Premier Bancorp, Inc. ("Pacific Premier") on August 31, 2025. Pursuant to the merger agreement, each issued and outstanding share of Pacific Premier common stock held by the reporting person was converted into the right to receive 0.9150 of a share of Columbia common stock. All fractional share holdings were paid in cash. On August 29, 2025, the closing price of Columbia common stock was $26.77, and the closing price of Pacific Premier common stock was $24.49.
- [F2]Restricted stock awards that vest in their entirety on May 15, 2026.