** Salem-based Oregon Bancorp's ORBN.PK shares jump 52.4% to $41.15

** Gesa Credit Union will buy ORBN in an all-cash deal that is expected to fetch the community bank's shareholders an estimated $43 to $45 per share

** Buying ORBN will give the credit union its first retail branches in Oregon in its 73-year history

** Transaction expected to be completed in first half of 2027

** Up to last close, ORBN stock had risen 3.4% YTD