{"cik":1466026,"company":{"entity_status":null,"filings":[{"accession":"0001466026-26-000082","document":"xslF345X06/primary_01.xml","filed":"2026-09-09","form":"4","items":"","report_date":"2026-09-08"},{"accession":"0001466026-26-000081","document":"xslF345X06/primary_01.xml","filed":"2026-08-18","form":"4","items":"","report_date":"2026-08-18"},{"accession":"0001466026-26-000079","document":"xslF345X06/primary_01.xml","filed":"2026-08-17","form":"4","items":"","report_date":"2026-08-04"},{"accession":"0001104659-26-090358","document":"tm2621309d1_8k.htm","filed":"2026-08-04","form":"8-K","items":"8.01,9.01","report_date":"2026-08-04"},{"accession":"0001466026-26-000078","document":"msbi-20260630.htm","filed":"2026-07-30","form":"10-Q","items":"","report_date":"2026-06-30"},{"accession":"0001466026-26-000072","document":"xslF345X06/primary_01.xml","filed":"2026-07-29","form":"4","items":"","report_date":"2026-07-28"},{"accession":"0001104659-26-087359","document":"tm2621309d1_8k.htm","filed":"2026-07-28","form":"8-K","items":"7.01,9.01","report_date":"2026-07-28"},{"accession":"0001466026-26-000071","document":"msbi-20260723.htm","filed":"2026-07-23","form":"8-K","items":"2.02,7.01,9.01","report_date":"2026-07-23"},{"accession":"0001466026-26-000065","document":"xslF345X06/primary_01.xml","filed":"2026-07-02","form":"4","items":"","report_date":"2026-06-30"},{"accession":"0001466026-26-000064","document":"xslF345X06/primary_01.xml","filed":"2026-07-02","form":"4","items":"","report_date":"2026-06-30"},{"accession":"0001466026-26-000063","document":"xslF345X06/primary_01.xml","filed":"2026-07-01","form":"4","items":"","report_date":"2026-06-30"},{"accession":"0001466026-26-000062","document":"xslF345X06/primary_01.xml","filed":"2026-07-01","form":"4","items":"","report_date":"2026-06-30"},{"accession":"0001104659-26-058721","document":"tm2614269d1_8k.htm","filed":"2026-05-11","form":"8-K","items":"5.02,7.01,9.01","report_date":"2026-05-08"},{"accession":"0001104659-26-057892","document":"tm2614110d1_8k.htm","filed":"2026-05-08","form":"8-K","items":"5.07","report_date":"2026-05-04"},{"accession":"0001104659-26-055732","document":"tm2613651d2_8k.htm","filed":"2026-05-05","form":"8-K","items":"8.01,9.01","report_date":"2026-05-05"},{"accession":"0001104659-26-055691","document":"tm2613651d1_8k.htm","filed":"2026-05-05","form":"8-K","items":"8.01,9.01","report_date":"2026-05-05"},{"accession":"0001466026-26-000049","document":"msbi-20260331.htm","filed":"2026-04-30","form":"10-Q","items":"","report_date":"2026-03-31"},{"accession":"0001466026-26-000045","document":"msbi-20260423.htm","filed":"2026-04-23","form":"8-K","items":"2.02,7.01,9.01","report_date":"2026-04-23"},{"accession":"0001104659-26-033298","document":"tm263673-2_def14a.htm","filed":"2026-03-23","form":"DEF 14A","items":"","report_date":"2026-05-04"},{"accession":"0001104659-26-024769","document":"tm268184d1_8k.htm","filed":"2026-03-06","form":"8-K","items":"5.02","report_date":"2026-03-05"},{"accession":"0001466026-26-000020","document":"msbi-20251231.htm","filed":"2026-03-02","form":"10-K","items":"","report_date":"2025-12-31"},{"accession":"0001104659-26-009852","document":"tm264921d3_8k.htm","filed":"2026-02-04","form":"8-K","items":"5.02,9.01","report_date":"2026-02-03"},{"accession":"0001104659-26-009720","document":"tm264921d2_8k.htm","filed":"2026-02-03","form":"8-K","items":"8.01,9.01","report_date":"2026-02-03"},{"accession":"0001466026-26-000012","document":"msbi-20260122.htm","filed":"2026-01-22","form":"8-K","items":"2.02,7.01,9.01","report_date":"2026-01-22"},{"accession":"0001104659-25-123107","document":"tm2533919d1_8k.htm","filed":"2025-12-19","form":"8-K","items":"5.02","report_date":"2025-12-19"},{"accession":"0001104659-25-117163","document":"tm2532313d1_8k.htm","filed":"2025-12-01","form":"8-K","items":"7.01,8.01,9.01","report_date":"2025-11-28"},{"accession":"0001466026-25-000070","document":"msbi-20250930.htm","filed":"2025-11-06","form":"10-Q","items":"","report_date":"2025-09-30"},{"accession":"0001104659-25-107711","document":"tm2530292d1_8k.htm","filed":"2025-11-06","form":"8-K","items":"5.02,7.01,9.01","report_date":"2025-11-03"},{"accession":"0001104659-25-105532","document":"tm2530060d1_8k.htm","filed":"2025-11-03","form":"8-K","items":"8.01,9.01","report_date":"2025-11-03"},{"accession":"0001466026-25-000054","document":"msbi-20251030.htm","filed":"2025-10-30","form":"8-K","items":"2.02,7.01,9.01","report_date":"2025-10-30"},{"accession":"0001466026-25-000038","document":"msbi-20250630.htm","filed":"2025-09-08","form":"10-Q","items":"","report_date":"2025-06-30"},{"accession":"0001104659-25-085897","document":"tm2524632d1_8k.htm","filed":"2025-09-02","form":"8-K","items":"8.01","report_date":"2025-08-27"},{"accession":"0001104659-25-081864","document":"tm2524099d1_8k.htm","filed":"2025-08-22","form":"8-K","items":"3.01,7.01,9.01","report_date":"2025-08-19"},{"accession":"0001466026-25-000031","document":"msbi-20250331.htm","filed":"2025-08-08","form":"10-Q","items":"","report_date":"2025-03-31"},{"accession":"0001104659-25-075265","document":"tm2522893d1_8k.htm","filed":"2025-08-07","form":"8-K","items":"5.07","report_date":"2025-08-04"},{"accession":"0001104659-25-074167","document":"tm2522643d1_8k.htm","filed":"2025-08-05","form":"8-K","items":"8.01,9.01","report_date":"2025-08-05"},{"accession":"0001466026-25-000027","document":"msbi-20250724.htm","filed":"2025-07-24","form":"8-K","items":"2.02,7.01,9.01","report_date":"2025-07-24"},{"accession":"0001466026-25-000021","document":"msbi-20241231.htm","filed":"2025-07-01","form":"10-K","items":"","report_date":"2024-12-31"},{"accession":"0001104659-25-064768","document":"tm252362-1_def14a.htm","filed":"2025-07-01","form":"DEF 14A","items":"","report_date":"2025-08-04"},{"accession":"0001104659-25-052418","document":"tm2516035d1_8k.htm","filed":"2025-05-23","form":"8-K","items":"3.01,7.01,9.01","report_date":"2025-05-19"}],"former_names":[],"gleif_parents":[],"headquarters":[],"insiders":[{"accession":"0001466026-26-000054","acquired_disposed":"A","code":"A","date":"2026-05-12","derivative":false,"filed":"2026-05-12","following_shares":"7998.0","form":"4","owners":["Stack Claire Ann"],"plan_10b5_1":false,"price":"27.53","security":"Common Stock","shares":"6357.0"},{"accession":"0001466026-26-000053","acquired_disposed":"A","code":"P","date":"2026-05-05","derivative":false,"filed":"2026-05-06","following_shares":"9400.0","form":"4","owners":["Franklin Travis"],"plan_10b5_1":false,"price":"26.49","security":"Common Stock","shares":"9400.0"},{"accession":"0001466026-26-000052","acquired_disposed":"D","code":"F","date":"2026-05-05","derivative":false,"filed":"2026-05-06","following_shares":"63212.0","form":"4","owners":["Jameson Jeremy Andrew"],"plan_10b5_1":false,"price":"27.08","security":"Common Stock","shares":"1982.0"},{"accession":"0001466026-26-000051","acquired_disposed":"D","code":"F","date":"2026-05-01","derivative":false,"filed":"2026-05-04","following_shares":"28050.0","form":"4","owners":["Casey Daniel Edward"],"plan_10b5_1":false,"price":"26.39","security":"Common Stock","shares":"204.0"},{"accession":"0001466026-26-000043","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":false,"filed":"2026-04-06","following_shares":"400971.43","form":"4/A","owners":["Ludwig Jeffrey G."],"plan_10b5_1":false,"price":"19.05","security":"Common Stock","shares":"1312.0"},{"accession":"0001466026-26-000042","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":false,"filed":"2026-04-06","following_shares":"65194.0","form":"4/A","owners":["Jameson Jeremy Andrew"],"plan_10b5_1":false,"price":"19.05","security":"Common Stock","shares":"1311.0"},{"accession":"0001466026-26-000040","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":true,"filed":"2026-04-02","following_shares":"22735.82","form":"4","owners":["Bingham Richard Dean"],"plan_10b5_1":false,"price":"22.97","security":"Common Share Equivalent","shares":"448.12"},{"accession":"0001466026-26-000039","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":true,"filed":"2026-04-02","following_shares":"11195.25","form":"4","owners":["DiMotta Jennifer"],"plan_10b5_1":false,"price":"22.97","security":"Common Share Equivalent","shares":"227.16"},{"accession":"0001466026-26-000038","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":true,"filed":"2026-04-02","following_shares":"37532.71","form":"4","owners":["McDaniel Jerry L."],"plan_10b5_1":false,"price":"22.97","security":"Common Share Equivalent","shares":"544.01"},{"accession":"0001466026-26-000037","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":true,"filed":"2026-04-02","following_shares":"18777.86","form":"4","owners":["McDonnell Jeffrey M"],"plan_10b5_1":false,"price":"22.97","security":"Common Share Equivalents","shares":"387.91"},{"accession":"0001466026-26-000036","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":true,"filed":"2026-04-02","following_shares":"8719.56","form":"4","owners":["Smith Jeffrey C."],"plan_10b5_1":false,"price":"22.97","security":"Common Share Equivalent","shares":"300.16"},{"accession":"0001466026-26-000036","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":true,"filed":"2026-04-02","following_shares":"9038.92","form":"4","owners":["Smith Jeffrey C."],"plan_10b5_1":false,"price":"22.31","security":"Common Share Equivalent","shares":"319.36"},{"accession":"0001466026-26-000035","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":true,"filed":"2026-04-02","following_shares":"46339.87","form":"4","owners":["Ramos Richard T"],"plan_10b5_1":false,"price":"22.97","security":"Common Share Equivalent","shares":"705.28"},{"accession":"0001466026-26-000034","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":true,"filed":"2026-04-02","following_shares":"10667.77","form":"4","owners":["Carlson Gerald Joseph"],"plan_10b5_1":false,"price":"22.97","security":"Common Share Equivalent","shares":"146.57"},{"accession":"0001466026-26-000034","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":true,"filed":"2026-04-02","following_shares":"11340.11","form":"4","owners":["Carlson Gerald Joseph"],"plan_10b5_1":false,"price":"22.31","security":"Common Share Equivalent","shares":"672.34"},{"accession":"0001466026-26-000033","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":true,"filed":"2026-04-02","following_shares":"106551.47","form":"4","owners":["Schultz Robert F."],"plan_10b5_1":false,"price":"22.31","security":"Common Share Equivalent","shares":"7.62"},{"accession":"0001466026-26-000033","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":true,"filed":"2026-04-02","following_shares":"108163.18","form":"4","owners":["Schultz Robert F."],"plan_10b5_1":false,"price":"22.97","security":"Common Share Equivalent","shares":"1611.71"},{"accession":"0001466026-26-000032","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":true,"filed":"2026-04-02","following_shares":"9891.58","form":"4","owners":["Franklin Travis"],"plan_10b5_1":false,"price":"22.31","security":"Common Share Equivalent","shares":"537.88"},{"accession":"0001466026-26-000032","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":true,"filed":"2026-04-02","following_shares":"9353.7","form":"4","owners":["Franklin Travis"],"plan_10b5_1":false,"price":"22.97","security":"Common Share Equivalent","shares":"128.52"},{"accession":"0001466026-26-000031","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":false,"filed":"2026-04-02","following_shares":"64634.0","form":"4","owners":["Jameson Jeremy Andrew"],"plan_10b5_1":false,"price":"19.05","security":"Common Stock","shares":"751.0"},{"accession":"0001466026-26-000030","acquired_disposed":"A","code":"A","date":"2026-03-31","derivative":false,"filed":"2026-04-02","following_shares":"400568.43","form":"4","owners":["Ludwig Jeffrey G."],"plan_10b5_1":false,"price":"19.05","security":"Common Stock","shares":"909.0"}],"legal_name":null,"lei":null,"lei_status":null,"lei_updated_at":null,"names":[],"parent_exceptions":[],"parents":[],"wikidata_id":null},"research_built_at":"2026-09-26T06:12:47.034626+00:00","reviewed_events":[],"reviewed_events_coverage":"selective; not a complete event history; accounting series not reconciled","sources":[{"coverage":"8004 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer","id":"sec","license":"SEC public-information reuse","license_url":"https://www.sec.gov/about/privacy-information","name":"SEC submissions","retrieved_at":"2026-09-26T06:13:04.417032+00:00","status":"ok","url":"https://www.sec.gov/search-filings/edgar-application-programming-interfaces"},{"coverage":"1612 unambiguous CIK-linked entities; coverage is incomplete","id":"wikidata","license":"CC0-1.0","license_url":"https://www.wikidata.org/wiki/Wikidata:Licensing","name":"Wikidata structured data","retrieved_at":"2026-09-22T06:21:19.731359+00:00","status":"ok","url":"https://www.wikidata.org/"},{"coverage":"1177 checked identities; 0 unavailable records","id":"gleif","license":"CC0-1.0","license_url":"https://www.gleif.org/en/meta/lei-data-terms-of-use","name":"GLEIF legal entity reference data","retrieved_at":"2026-09-22T06:23:07.999545+00:00","status":"ok","url":"https://www.gleif.org/en/lei-data/gleif-api"},{"coverage":"4 selected series; gaps remain missing","id":"fed","license":"Public domain (selected government series)","license_url":"https://www.federalreserve.gov/disclaimer.htm","name":"Federal Reserve Board H.15","retrieved_at":"2026-09-26T06:13:45.874267+00:00","status":"ok","url":"https://www.federalreserve.gov/releases/h15/"},{"coverage":"9 selected series; gaps remain missing","id":"bls","license":"Public domain","license_url":"https://www.bls.gov/opub/copyright-information.htm","name":"Bureau of Labor Statistics","retrieved_at":"2026-09-26T06:13:47.397631+00:00","status":"ok","url":"https://www.bls.gov/developers/"},{"coverage":"2026 Q2: filings in this completed quarter; not a live transaction feed","id":"insiders","license":"SEC public-information reuse","license_url":"https://www.sec.gov/about/privacy-information","name":"SEC insider transactions","retrieved_at":"2026-09-22T06:21:11.750296+00:00","status":"ok","url":"https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets"}]}