{"entity":{"type":"insider","cik":"0001255597","url":"/insider/0001255597","json_url":"/insider/0001255597.json","name":"WILSON JOHN K","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":25,"n_filings":6,"first":"2004-02-18","last":"2008-11-07","span_basis":"filed_date"},"name_variants":[{"name":"WILSON JOHN K","source":"filing","n_filings":6,"first_seen":"2004-02-18","last_seen":"2008-11-07"}],"transactions":[{"id":3749087,"accession":"0000067716-08-000197","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000067716-08-000197","line_url":"/filing/0000067716-08-000197#line-1","is_derivative":false,"issuer_cik":"0000067716","issuer_name":"MDU RESOURCES GROUP INC","issuer_ticker":"MDU","issuer_name_source":null,"issuer_url":"/issuer/0000067716","owner_cik":"0001255597","owner_name":"WILSON JOHN K","owner_display_name":"WILSON JOHN K","owner_url":"/insider/0001255597","role":"Director","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Common Stock","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":5000.0,"shares_display":"5,000","price_per_share":18.052,"price_display":"18.05","price_state":"stated","total_value":90260.0,"total_display":"90,260.00","total_whole":"90,260","shares_owned_after":60115.0,"shares_owned_after_display":"60,115","ownership_form":"D","is_10b5_1":null,"transaction_date":"2008-11-07","filed_date":"2008-11-07","scope":"insider"},{"id":7998833,"accession":"0000067716-07-000047","txn_seq":7,"anchor":"line-7","filing_url":"/filing/0000067716-07-000047","line_url":"/filing/0000067716-07-000047","is_derivative":false,"issuer_cik":"0000067716","issuer_name":"MDU RESOURCES GROUP INC","issuer_ticker":"MDU","issuer_name_source":null,"issuer_url":"/issuer/0000067716","owner_cik":"0001255597","owner_name":"WILSON JOHN K","owner_display_name":"WILSON JOHN K","owner_url":"/insider/0001255597","role":"Director","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Common Stock","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":4000.0,"shares_display":"4,000","price_per_share":26.783,"price_display":"26.78","price_state":"stated","total_value":107132.0,"total_display":"107,132.00","total_whole":"107,132","shares_owned_after":44442.0,"shares_owned_after_display":"44,442","ownership_form":"D","is_10b5_1":null,"transaction_date":"2007-02-21","filed_date":"2007-02-22","scope":"insider","n_lines":7},{"id":3995219,"accession":"0000067716-06-000104","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000067716-06-000104","line_url":"/filing/0000067716-06-000104#line-1","is_derivative":false,"issuer_cik":"0000067716","issuer_name":"MDU RESOURCES GROUP INC","issuer_ticker":"MDU","issuer_name_source":null,"issuer_url":"/issuer/0000067716","owner_cik":"0001255597","owner_name":"WILSON JOHN K","owner_display_name":"WILSON JOHN K","owner_url":"/insider/0001255597","role":"Director","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Common Stock","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":2000.0,"shares_display":"2,000","price_per_share":36.89,"price_display":"36.89","price_state":"stated","total_value":73780.0,"total_display":"73,780.00","total_whole":"73,780","shares_owned_after":27295.0,"shares_owned_after_display":"27,295","ownership_form":"D","is_10b5_1":null,"transaction_date":"2006-05-01","filed_date":"2006-05-02","scope":"insider"},{"id":3870604,"accession":"0000067716-06-000067","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000067716-06-000067","line_url":"/filing/0000067716-06-000067","is_derivative":false,"issuer_cik":"0000067716","issuer_name":"MDU RESOURCES GROUP INC","issuer_ticker":"MDU","issuer_name_source":null,"issuer_url":"/issuer/0000067716","owner_cik":"0001255597","owner_name":"WILSON JOHN K","owner_display_name":"WILSON JOHN K","owner_url":"/insider/0001255597","role":"Director","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Common Stock","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":2000.0,"shares_display":"2,000","price_per_share":35.6955,"price_display":"35.70","price_state":"stated","total_value":71391.0,"total_display":"71,391.00","total_whole":"71,391","shares_owned_after":22295.0,"shares_owned_after_display":"22,295","ownership_form":"D","is_10b5_1":null,"transaction_date":"2006-02-22","filed_date":"2006-02-23","scope":"insider","n_lines":3},{"id":1588152,"accession":"0000067716-05-000184","txn_seq":10,"anchor":"line-10","filing_url":"/filing/0000067716-05-000184","line_url":"/filing/0000067716-05-000184","is_derivative":false,"issuer_cik":"0000067716","issuer_name":"MDU RESOURCES GROUP INC","issuer_ticker":"MDU","issuer_name_source":null,"issuer_url":"/issuer/0000067716","owner_cik":"0001255597","owner_name":"WILSON JOHN K","owner_display_name":"WILSON JOHN K","owner_url":"/insider/0001255597","role":"Director","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Common Stock","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":6000.0,"shares_display":"6,000","price_per_share":33.77766666666667,"price_display":"33.78","price_state":"stated","total_value":202666.0,"total_display":"202,666.00","total_whole":"202,666","shares_owned_after":19987.0,"shares_owned_after_display":"19,987","ownership_form":"D","is_10b5_1":null,"transaction_date":"2005-11-29","filed_date":"2005-11-30","scope":"insider","n_lines":10},{"id":239580,"accession":"0000067716-04-000036","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000067716-04-000036","line_url":"/filing/0000067716-04-000036#line-3","is_derivative":false,"issuer_cik":"0000067716","issuer_name":"MDU RESOURCES GROUP INC","issuer_ticker":"MDU","issuer_name_source":null,"issuer_url":"/issuer/0000067716","owner_cik":"0001255597","owner_name":"WILSON JOHN K","owner_display_name":"WILSON JOHN K","owner_url":"/insider/0001255597","role":"Director","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Common Stock","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":5200.0,"shares_display":"5,200","price_per_share":23.95,"price_display":"23.95","price_state":"stated","total_value":124540.0,"total_display":"124,540.00","total_whole":"124,540","shares_owned_after":7845.0,"shares_owned_after_display":"7,845","ownership_form":"D","is_10b5_1":null,"transaction_date":"2004-02-18","filed_date":"2004-02-18","scope":"insider"},{"id":239579,"accession":"0000067716-04-000036","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000067716-04-000036","line_url":"/filing/0000067716-04-000036","is_derivative":false,"issuer_cik":"0000067716","issuer_name":"MDU RESOURCES GROUP INC","issuer_ticker":"MDU","issuer_name_source":null,"issuer_url":"/issuer/0000067716","owner_cik":"0001255597","owner_name":"WILSON JOHN K","owner_display_name":"WILSON JOHN K","owner_url":"/insider/0001255597","role":"Director","role_mark":"D","role_mark_label":"Director","role_mark_generic":"Director","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":null,"security_title":"Common Stock","transaction_code":"P","transaction_label":"Open-market purchase","open_market":true,"acquired_disposed":"A","direction_word":"acquired","shares":800.0,"shares_display":"800","price_per_share":23.9375,"price_display":"23.94","price_state":"stated","total_value":19150.0,"total_display":"19,150.00","total_whole":"19,150","shares_owned_after":2645.0,"shares_owned_after_display":"2,645","ownership_form":"D","is_10b5_1":null,"transaction_date":"2004-02-17","filed_date":"2004-02-18","scope":"insider","n_lines":2}],"collapsed":true,"next_cursor":null,"ledger_fault":false,"count":{"value":25,"kind":"exact"},"open_market_only":false,"composition":{"kind":"exact","rows":[{"code":"P","label":"Open-market purchase","n":25,"open_market":true},{"code":"S","label":"Open-market sale","n":0,"open_market":true},{"code":"M","label":"Option exercise","n":0,"open_market":false},{"code":"A","label":"Grant or award","n":0,"open_market":false},{"code":"F","label":"Tax withholding","n":0,"open_market":false},{"code":"D","label":"Disposition to the issuer","n":0,"open_market":false},{"code":"X","label":"In-the-money option exercise","n":0,"open_market":false}],"total":25},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0000067716","name":"MDU RESOURCES GROUP INC","url":"/issuer/0000067716","role":"Director","n_filings":6,"first_seen":"2004-02-18","last_seen":"2008-11-07"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001255597","retrieved_at":"2026-08-23T16:24:44+00:00","coverage":{"filings":1506293,"transactions":4290787,"issuers":28597,"insiders":152303,"first_filed_date":"2003-06-30","last_filed_date":"2026-08-21","last_ingest":"2026-08-22T05:23:40.159918+00:00","counts_are":{"filings":"estimate","transactions":"estimate","issuers":"estimate","insiders":"estimate"},"source":"SEC EDGAR Form 4 filings, parsed by ebomi","fault":false},"license":{"underlying_records":"US SEC filings are public records of the United States government and are not subject to copyright. The transactional facts in them are not ours to license.","this_presentation":"The parsing, normalisation, curation, and presentation are ebomi's own work.","grant":"undecided","grant_note":"The open licence for ebomi's own layer is an open owner decision (SPEC-20260731T1159Z open question 3: CC BY 4.0 or CC0 with a citation request). Until it is taken, no grant is asserted here.","citation_request":"Balogh, A. Insider trading. Scientific Data 10, 237 (2023)","url":"https://ebomi.com/license"},"fair_use":{"policy":"These JSON endpoints are open and unauthenticated. Please read them at a human pace, identify your client in the User-Agent header, and use the published dataset for bulk work rather than crawling page by page.","bulk_alternative":"doi:10.1038/s41597-023-02147-6"}}