{"transactions":[{"id":775935,"issuer":{"id":707,"kind":"organization","name":"COLUMBIA BANKING SYSTEM, INC.","symbol":"COLB"},"owners":[{"id":46639,"kind":"person","name":"Lund Randal Lee","position":1,"cik":"0001713258","reported_name":"Lund Randal Lee","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-18T21:09:01.000Z","date":"2026-05-14","kind":"grant","planned":false,"acquired":true,"shares":3949,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":27663,"source":{"system":"sec-edgar","filing":"0001713258-26-000002","document":"wk-form4_1779138537.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/887343/000171325826000002/wk-form4_1779138537.xml","form_type":"4"}},{"id":1146332,"issuer":{"id":707,"kind":"organization","name":"COLUMBIA BANKING SYSTEM, INC.","symbol":"COLB"},"owners":[{"id":46639,"kind":"person","name":"Lund Randal Lee","position":1,"cik":"0001713258","reported_name":"Lund Randal Lee","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-05-17T01:52:34.000Z","date":"2025-05-15","kind":"grant","planned":false,"acquired":true,"shares":3382,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":23714,"source":{"system":"sec-edgar","filing":"0000887343-25-000192","document":"wk-form4_1747446747.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/887343/000088734325000192/wk-form4_1747446747.xml","form_type":"4"}},{"id":1518245,"issuer":{"id":707,"kind":"organization","name":"COLUMBIA BANKING SYSTEM, INC.","symbol":"COLB"},"owners":[{"id":46639,"kind":"person","name":"Lund Randal Lee","position":1,"cik":"0001713258","reported_name":"Lund Randal Lee","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-05-14T21:30:52.000Z","date":"2024-05-10","kind":"grant","planned":false,"acquired":true,"shares":4183,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":20332,"source":{"system":"sec-edgar","filing":"0000887343-24-000211","document":"wk-form4_1715722239.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/887343/000088734324000211/wk-form4_1715722239.xml","form_type":"4"}},{"id":1662806,"issuer":{"id":707,"kind":"organization","name":"COLUMBIA BANKING SYSTEM, INC.","symbol":"COLB"},"owners":[{"id":46639,"kind":"person","name":"Lund Randal Lee","position":1,"cik":"0001713258","reported_name":"Lund Randal Lee","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-02-03T02:22:44.000Z","date":"2024-02-01","kind":"purchase","planned":false,"acquired":true,"shares":1000,"price":19.2876,"value":19287.6,"ownership":{"direct":true},"balance_after":17149,"source":{"system":"sec-edgar","filing":"0001628280-24-003155","document":"wk-form4_1706926952.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/887343/000162828024003155/wk-form4_1706926952.xml","form_type":"4"}},{"id":1885827,"issuer":{"id":707,"kind":"organization","name":"COLUMBIA BANKING SYSTEM, INC.","symbol":"COLB"},"owners":[{"id":46639,"kind":"person","name":"Lund Randal Lee","position":1,"cik":"0001713258","reported_name":"Lund Randal Lee","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-05-19T23:02:34.000Z","date":"2023-05-18","kind":"grant","planned":false,"acquired":true,"shares":4028,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":16149,"source":{"system":"sec-edgar","filing":"0000887343-23-000248","document":"wf-form4_168453732886507.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/887343/000088734323000248/wf-form4_168453732886507.xml","form_type":"4"}},{"id":1976394,"issuer":{"id":707,"kind":"organization","name":"COLUMBIA BANKING SYSTEM, INC.","symbol":"COLB"},"owners":[{"id":46639,"kind":"person","name":"Lund Randal Lee","position":1,"cik":"0001713258","reported_name":"Lund Randal Lee","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-03-03T23:25:10.000Z","date":"2023-03-02","kind":"grant","acquired":true,"shares":648,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":12121,"source":{"system":"sec-edgar","filing":"0000887343-23-000138","document":"wf-form4_167788589135195.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/887343/000088734323000138/wf-form4_167788589135195.xml","form_type":"4"}},{"id":1997168,"issuer":{"id":707,"kind":"organization","name":"COLUMBIA BANKING SYSTEM, INC.","symbol":"COLB"},"owners":[{"id":46639,"kind":"person","name":"Lund Randal Lee","position":1,"cik":"0001713258","reported_name":"Lund Randal Lee","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common","published_at":"2023-02-23T17:46:53.000Z","date":"2023-02-21","kind":"grant","acquired":true,"shares":1738,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":11473,"source":{"system":"sec-edgar","filing":"0000887343-23-000041","document":"wf-form4_167717439607747.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/887343/000088734323000041/wf-form4_167717439607747.xml","form_type":"4"}},{"id":2692149,"issuer":{"id":707,"kind":"organization","name":"COLUMBIA BANKING SYSTEM, INC.","symbol":"COLB"},"owners":[{"id":46639,"kind":"person","name":"Lund Randal Lee","position":1,"cik":"0001713258","reported_name":"Lund Randal Lee","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common","published_at":"2021-05-28T21:24:31.000Z","date":"2021-05-26","kind":"grant","acquired":true,"shares":1669,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":9735,"source":{"system":"sec-edgar","filing":"0000887343-21-000132","document":"wf-form4_162223705436875.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/887343/000088734321000132/wf-form4_162223705436875.xml","form_type":"4"}},{"id":3132784,"issuer":{"id":707,"kind":"organization","name":"COLUMBIA BANKING SYSTEM, INC.","symbol":"COLB"},"owners":[{"id":46639,"kind":"person","name":"Lund Randal Lee","position":1,"cik":"0001713258","reported_name":"Lund Randal Lee","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common","published_at":"2020-05-28T23:55:43.000Z","date":"2020-05-27","kind":"grant","acquired":true,"shares":2640,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":8066,"source":{"system":"sec-edgar","filing":"0000887343-20-000175","document":"wf-form4_159071012610248.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/887343/000088734320000175/wf-form4_159071012610248.xml","form_type":"4"}},{"id":3455592,"issuer":{"id":707,"kind":"organization","name":"COLUMBIA BANKING SYSTEM, INC.","symbol":"COLB"},"owners":[{"id":46639,"kind":"person","name":"Lund Randal Lee","position":1,"cik":"0001713258","reported_name":"Lund Randal Lee","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common","published_at":"2019-07-26T18:09:31.000Z","date":"2019-07-24","kind":"grant","acquired":true,"shares":1902,"price":36.8,"value":69993.6,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Restricted Stock Award"}],"balance_after":5426,"source":{"system":"sec-edgar","filing":"0000887343-19-000129","document":"wf-form4_156416455596642.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/887343/000088734319000129/wf-form4_156416455596642.xml","form_type":"4"}},{"id":3879493,"issuer":{"id":707,"kind":"organization","name":"COLUMBIA BANKING SYSTEM, INC.","symbol":"COLB"},"owners":[{"id":46639,"kind":"person","name":"Lund Randal Lee","position":1,"cik":"0001713258","reported_name":"Lund Randal Lee","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common","published_at":"2018-07-02T21:02:15.000Z","date":"2018-06-28","kind":"grant","acquired":true,"shares":1691,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Restricted Stock Award"}],"balance_after":3524,"source":{"system":"sec-edgar","filing":"0000887343-18-000117","document":"wf-form4_153056531321676.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/887343/000088734318000117/wf-form4_153056531321676.xml","form_type":"4"}},{"id":4249633,"issuer":{"id":707,"kind":"organization","name":"COLUMBIA BANKING SYSTEM, INC.","symbol":"COLB"},"owners":[{"id":46639,"kind":"person","name":"Lund Randal Lee","position":1,"cik":"0001713258","reported_name":"Lund Randal Lee","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common","published_at":"2017-07-28T17:08:05.000Z","date":"2017-07-26","kind":"grant","acquired":true,"shares":1833,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Restricted Stock Award"}],"balance_after":1833,"source":{"system":"sec-edgar","filing":"0000887343-17-000146","document":"wf-form4_150126167171712.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/887343/000088734317000146/wf-form4_150126167171712.xml","form_type":"4"}}]}