{"entity":{"type":"insider","cik":"0001581260","url":"/insider/0001581260","json_url":"/insider/0001581260.json","name":"MAJOR JAMES F. JR.","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":18,"n_filings":12,"first":"2013-08-14","last":"2020-12-04","span_basis":"filed_date"},"name_variants":[{"name":"MAJOR JAMES F. JR.","source":"filing","n_filings":12,"first_seen":"2013-08-14","last_seen":"2020-12-04"}],"transactions":[{"id":3107193,"accession":"0001574815-20-000098","txn_seq":6,"anchor":"line-6","filing_url":"/filing/0001574815-20-000098","line_url":"/filing/0001574815-20-000098#line-6","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"BMC STOCK HOLDINGS, INC.","issuer_ticker":"BMCH","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":54177.0,"shares_display":"54,177","price_per_share":46.1516,"price_display":"46.15","price_state":"stated","total_value":2500355.2332,"total_display":"2,500,355.23","total_whole":"2,500,355","shares_owned_after":90636.0,"shares_owned_after_display":"90,636","ownership_form":"D","is_10b5_1":null,"transaction_date":"2020-12-03","filed_date":"2020-12-04","scope":"insider"},{"id":3107185,"accession":"0001574815-20-000098","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001574815-20-000098","line_url":"/filing/0001574815-20-000098#line-3","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"BMC STOCK HOLDINGS, INC.","issuer_ticker":"BMCH","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":25000.0,"shares_display":"25,000","price_per_share":46.1618,"price_display":"46.16","price_state":"stated","total_value":1154045.0,"total_display":"1,154,045.00","total_whole":"1,154,045","shares_owned_after":90636.0,"shares_owned_after_display":"90,636","ownership_form":"D","is_10b5_1":null,"transaction_date":"2020-12-02","filed_date":"2020-12-04","scope":"insider"},{"id":8715228,"accession":"0001574815-19-000141","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001574815-19-000141","line_url":"/filing/0001574815-19-000141#line-2","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"BMC STOCK HOLDINGS, INC.","issuer_ticker":"BMCH","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":6712.0,"shares_display":"6,712","price_per_share":29.0523,"price_display":"29.05","price_state":"stated","total_value":194999.0376,"total_display":"194,999.04","total_whole":"194,999","shares_owned_after":91483.0,"shares_owned_after_display":"91,483","ownership_form":"D","is_10b5_1":null,"transaction_date":"2019-11-18","filed_date":"2019-11-19","scope":"insider"},{"id":8715222,"accession":"0001574815-19-000141","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001574815-19-000141","line_url":"/filing/0001574815-19-000141#line-1","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"BMC STOCK HOLDINGS, INC.","issuer_ticker":"BMCH","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":7688.0,"shares_display":"7,688","price_per_share":29.1009,"price_display":"29.10","price_state":"stated","total_value":223727.7192,"total_display":"223,727.72","total_whole":"223,728","shares_owned_after":98195.0,"shares_owned_after_display":"98,195","ownership_form":"D","is_10b5_1":null,"transaction_date":"2019-11-15","filed_date":"2019-11-19","scope":"insider"},{"id":8105413,"accession":"0001574815-19-000134","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001574815-19-000134","line_url":"/filing/0001574815-19-000134#line-2","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"BMC STOCK HOLDINGS, INC.","issuer_ticker":"BMCH","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":12800.0,"shares_display":"12,800","price_per_share":28.76,"price_display":"28.76","price_state":"stated","total_value":368128.0,"total_display":"368,128.00","total_whole":"368,128","shares_owned_after":105883.0,"shares_owned_after_display":"105,883","ownership_form":"D","is_10b5_1":null,"transaction_date":"2019-10-21","filed_date":"2019-10-22","scope":"insider"},{"id":8105401,"accession":"0001574815-19-000134","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001574815-19-000134","line_url":"/filing/0001574815-19-000134#line-1","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"BMC STOCK HOLDINGS, INC.","issuer_ticker":"BMCH","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":500.0,"shares_display":"500","price_per_share":28.5437,"price_display":"28.54","price_state":"stated","total_value":14271.85,"total_display":"14,271.85","total_whole":"14,272","shares_owned_after":118683.0,"shares_owned_after_display":"118,683","ownership_form":"D","is_10b5_1":null,"transaction_date":"2019-10-18","filed_date":"2019-10-22","scope":"insider"},{"id":8171636,"accession":"0001574815-19-000132","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0001574815-19-000132","line_url":"/filing/0001574815-19-000132#line-3","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"BMC STOCK HOLDINGS, INC.","issuer_ticker":"BMCH","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":23300.0,"shares_display":"23,300","price_per_share":28.0338,"price_display":"28.03","price_state":"stated","total_value":653187.54,"total_display":"653,187.54","total_whole":"653,188","shares_owned_after":119183.0,"shares_owned_after_display":"119,183","ownership_form":"D","is_10b5_1":null,"transaction_date":"2019-10-17","filed_date":"2019-10-17","scope":"insider"},{"id":8171633,"accession":"0001574815-19-000132","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0001574815-19-000132","line_url":"/filing/0001574815-19-000132#line-2","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"BMC STOCK HOLDINGS, INC.","issuer_ticker":"BMCH","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":10000.0,"shares_display":"10,000","price_per_share":27.3162,"price_display":"27.32","price_state":"stated","total_value":273162.0,"total_display":"273,162.00","total_whole":"273,162","shares_owned_after":142483.0,"shares_owned_after_display":"142,483","ownership_form":"D","is_10b5_1":null,"transaction_date":"2019-10-16","filed_date":"2019-10-17","scope":"insider"},{"id":8171629,"accession":"0001574815-19-000132","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001574815-19-000132","line_url":"/filing/0001574815-19-000132#line-1","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"BMC STOCK HOLDINGS, INC.","issuer_ticker":"BMCH","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":13963.0,"shares_display":"13,963","price_per_share":26.4806,"price_display":"26.48","price_state":"stated","total_value":369748.6178,"total_display":"369,748.62","total_whole":"369,749","shares_owned_after":152483.0,"shares_owned_after_display":"152,483","ownership_form":"D","is_10b5_1":null,"transaction_date":"2019-10-15","filed_date":"2019-10-17","scope":"insider"},{"id":8743083,"accession":"0001574815-19-000130","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001574815-19-000130","line_url":"/filing/0001574815-19-000130#line-1","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"BMC STOCK HOLDINGS, INC.","issuer_ticker":"BMCH","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":25037.0,"shares_display":"25,037","price_per_share":25.9402,"price_display":"25.94","price_state":"stated","total_value":649464.7874,"total_display":"649,464.79","total_whole":"649,465","shares_owned_after":166446.0,"shares_owned_after_display":"166,446","ownership_form":"D","is_10b5_1":null,"transaction_date":"2019-10-01","filed_date":"2019-10-03","scope":"insider"},{"id":4138700,"accession":"0000899243-17-021555","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-17-021555","line_url":"/filing/0000899243-17-021555#line-1","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"BMC STOCK HOLDINGS, INC.","issuer_ticker":"BMCH","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":20000.0,"shares_display":"20,000","price_per_share":20.24,"price_display":"20.24","price_state":"stated","total_value":404800.0,"total_display":"404,800.00","total_whole":"404,800","shares_owned_after":176482.0,"shares_owned_after_display":"176,482","ownership_form":"D","is_10b5_1":null,"transaction_date":"2017-09-01","filed_date":"2017-09-06","scope":"insider"},{"id":4523372,"accession":"0000899243-17-008646","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-17-008646","line_url":"/filing/0000899243-17-008646#line-1","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"BMC STOCK HOLDINGS, INC.","issuer_ticker":"BMCH","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":20000.0,"shares_display":"20,000","price_per_share":23.0,"price_display":"23.00","price_state":"stated","total_value":460000.0,"total_display":"460,000.00","total_whole":"460,000","shares_owned_after":196482.0,"shares_owned_after_display":"196,482","ownership_form":"D","is_10b5_1":null,"transaction_date":"2017-03-23","filed_date":"2017-03-27","scope":"insider"},{"id":4522999,"accession":"0000899243-17-007219","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000899243-17-007219","line_url":"/filing/0000899243-17-007219#line-2","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"BMC STOCK HOLDINGS, INC.","issuer_ticker":"BMCH","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":20000.0,"shares_display":"20,000","price_per_share":22.0,"price_display":"22.00","price_state":"stated","total_value":440000.0,"total_display":"440,000.00","total_whole":"440,000","shares_owned_after":216482.0,"shares_owned_after_display":"216,482","ownership_form":"D","is_10b5_1":null,"transaction_date":"2017-03-10","filed_date":"2017-03-10","scope":"insider"},{"id":4808366,"accession":"0000899243-17-006174","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-17-006174","line_url":"/filing/0000899243-17-006174#line-1","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"BMC STOCK HOLDINGS, INC.","issuer_ticker":"BMCH","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":20000.0,"shares_display":"20,000","price_per_share":21.0,"price_display":"21.00","price_state":"stated","total_value":420000.0,"total_display":"420,000.00","total_whole":"420,000","shares_owned_after":229399.0,"shares_owned_after_display":"229,399","ownership_form":"D","is_10b5_1":null,"transaction_date":"2017-02-28","filed_date":"2017-03-02","scope":"insider"},{"id":2079781,"accession":"0000899243-16-035279","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000899243-16-035279","line_url":"/filing/0000899243-16-035279#line-2","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"BMC STOCK HOLDINGS, INC.","issuer_ticker":"BMCH","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":14242.0,"shares_display":"14,242","price_per_share":20.0,"price_display":"20.00","price_state":"stated","total_value":284840.0,"total_display":"284,840.00","total_whole":"284,840","shares_owned_after":249399.0,"shares_owned_after_display":"249,399","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-12-09","filed_date":"2016-12-09","scope":"insider"},{"id":2079780,"accession":"0000899243-16-035279","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000899243-16-035279","line_url":"/filing/0000899243-16-035279#line-1","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"BMC STOCK HOLDINGS, INC.","issuer_ticker":"BMCH","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":5758.0,"shares_display":"5,758","price_per_share":20.0,"price_display":"20.00","price_state":"stated","total_value":115160.0,"total_display":"115,160.00","total_whole":"115,160","shares_owned_after":263641.0,"shares_owned_after_display":"263,641","ownership_form":"D","is_10b5_1":null,"transaction_date":"2016-12-08","filed_date":"2016-12-09","scope":"insider"},{"id":6677000,"accession":"0001209191-14-022314","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0001209191-14-022314","line_url":"/filing/0001209191-14-022314#line-1","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"STOCK BUILDING SUPPLY HOLDINGS, INC.","issuer_ticker":"STCK","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer","role_mark":"O","role_mark_label":"Officer","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"See Remarks","security_title":"Common Stock, par value $0.01 per share","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":75000.0,"shares_display":"75,000","price_per_share":18.6713,"price_display":"18.67","price_state":"stated","total_value":1400347.5,"total_display":"1,400,347.50","total_whole":"1,400,348","shares_owned_after":226928.0,"shares_owned_after_display":"226,928","ownership_form":"D","is_10b5_1":null,"transaction_date":"2014-03-18","filed_date":"2014-03-20","scope":"insider"},{"id":4882834,"accession":"0001181431-13-044919","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0001181431-13-044919","line_url":"/filing/0001181431-13-044919#line-4","is_derivative":false,"issuer_cik":"0001574815","issuer_name":"STOCK BUILDING SUPPLY HOLDINGS, INC.","issuer_ticker":"STCK","issuer_name_source":null,"issuer_url":"/issuer/0001574815","owner_cik":"0001581260","owner_name":"MAJOR JAMES F. JR.","owner_display_name":"MAJOR JAMES F. JR.","owner_url":"/insider/0001581260","role":"Officer (EVP, CFO, Treasurer)","role_mark":"O","role_mark_label":"Officer (EVP, CFO, Treasurer)","role_mark_generic":"Officer","n_reporting_owners":null,"other_reporting_owners":null,"officer_title":"EVP, CFO, Treasurer","security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":19260.0,"shares_display":"19,260","price_per_share":13.02,"price_display":"13.02","price_state":"stated","total_value":250765.2,"total_display":"250,765.20","total_whole":"250,765","shares_owned_after":292404.0,"shares_owned_after_display":"292,404","ownership_form":"D","is_10b5_1":null,"transaction_date":"2013-08-14","filed_date":"2013-08-14","scope":"insider"}],"collapsed":true,"next_cursor":null,"ledger_fault":false,"count":{"value":18,"kind":"exact"},"open_market_only":false,"composition":{"kind":"exact","rows":[{"code":"P","label":"Open-market purchase","n":0,"open_market":true},{"code":"S","label":"Open-market sale","n":18,"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":18},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001574815","name":"BMC STOCK HOLDINGS, INC.","url":"/issuer/0001574815","role":"Officer","n_filings":12,"first_seen":"2013-08-14","last_seen":"2020-12-04"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001581260","retrieved_at":"2026-08-23T14:24:56+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"}}