{"entity":{"type":"insider","cik":"0001501625","url":"/insider/0001501625","json_url":"/insider/0001501625.json","name":"Stockbridge Fund, L.P.","name_source":"as-filed","also_issuer":false,"cross_url":null},"coverage_statement":{"n_transactions":196,"n_filings":38,"first":"2010-11-08","last":"2021-12-16","span_basis":"filed_date"},"name_variants":[{"name":"Stockbridge Fund, L.P.","source":"filing","n_filings":38,"first_seen":"2010-11-08","last_seen":"2021-12-16"}],"transactions":[{"id":4123954,"accession":"0000919574-21-007453","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000919574-21-007453","line_url":"/filing/0000919574-21-007453","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"BPSP, L.P.; Berkshire Investors IV LLC; Stockbridge Fund, L.P.; Berkshire Partners Holdings LLC; Stockbridge Partners LLC; Berkshire Fund IX-A, L.P.; Berkshire Partners LLC; Berkshire Fund IX, L.P.; Berkshire Investors III LLC; Stockbridge Absolute Return Fund, L.P.","owner_display_name":"BPSP, L.P.","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"officer_title":null,"security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":750000.0,"shares_display":"750,000","price_per_share":125.25,"price_display":"125.25","price_state":"stated","total_value":93937500.0,"total_display":"93,937,500.00","total_whole":"93,937,500","shares_owned_after":6367265.0,"shares_owned_after_display":"6,367,265","ownership_form":"I","is_10b5_1":null,"transaction_date":"2021-12-14","filed_date":"2021-12-16","scope":"insider","n_lines":3},{"id":5396254,"accession":"0000919574-21-007037","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000919574-21-007037","line_url":"/filing/0000919574-21-007037","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Berkshire Partners LLC; Berkshire Partners Holdings LLC; Stockbridge Partners LLC; Berkshire Fund IX-A, L.P.; Berkshire Investors III LLC; Stockbridge Fund, L.P.; Berkshire Fund IX, L.P.; Stockbridge Absolute Return Fund, L.P.; Berkshire Investors IV LLC; BPSP, L.P.","owner_display_name":"Berkshire Partners LLC","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"officer_title":null,"security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":640000.0,"shares_display":"640,000","price_per_share":126.79,"price_display":"126.79","price_state":"stated","total_value":81145600.0,"total_display":"81,145,600.00","total_whole":"81,145,600","shares_owned_after":7097035.0,"shares_owned_after_display":"7,097,035","ownership_form":"I","is_10b5_1":null,"transaction_date":"2021-11-11","filed_date":"2021-11-15","scope":"insider","n_lines":3},{"id":4606169,"accession":"0000919574-21-005875","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000919574-21-005875","line_url":"/filing/0000919574-21-005875","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Stockbridge Absolute Return Fund, L.P.; Berkshire Partners Holdings LLC; BPSP, L.P.; Berkshire Investors IV LLC; Stockbridge Fund, L.P.; Berkshire Partners LLC; Berkshire Investors III LLC; Berkshire Fund IX-A, L.P.; Stockbridge Partners LLC; Berkshire Fund IX, L.P.","owner_display_name":"Stockbridge Absolute Return Fund, L.P.","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"officer_title":null,"security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1455990.0,"shares_display":"1,455,990","price_per_share":109.75,"price_display":"109.75","price_state":"stated","total_value":159794902.5,"total_display":"159,794,902.50","total_whole":"159,794,903","shares_owned_after":7717117.0,"shares_owned_after_display":"7,717,117","ownership_form":"I","is_10b5_1":null,"transaction_date":"2021-09-14","filed_date":"2021-09-16","scope":"insider","n_lines":3},{"id":4870160,"accession":"0000919574-21-002414","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000919574-21-002414","line_url":"/filing/0000919574-21-002414","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"BPSP, L.P.; Berkshire Investors IV LLC; Stockbridge Partners LLC; Stockbridge Fund, L.P.; Berkshire Partners LLC; Berkshire Partners Holdings LLC; Berkshire Fund IX, L.P.; Stockbridge Absolute Return Fund, L.P.; Berkshire Fund IX-A, L.P.; Berkshire Investors III LLC","owner_display_name":"BPSP, L.P.","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"officer_title":null,"security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1495996.0,"shares_display":"1,495,996","price_per_share":103.61,"price_display":"103.61","price_state":"stated","total_value":155000145.56,"total_display":"155,000,145.56","total_whole":"155,000,146","shares_owned_after":9142940.0,"shares_owned_after_display":"9,142,940","ownership_form":"I","is_10b5_1":null,"transaction_date":"2021-03-10","filed_date":"2021-03-12","scope":"insider","n_lines":3},{"id":5238959,"accession":"0000919574-21-001876","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000919574-21-001876","line_url":"/filing/0000919574-21-001876#line-1","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Berkshire Fund IX-A, L.P.; Berkshire Fund IX, L.P.; BPSP, L.P.; Berkshire Investors IV LLC; Stockbridge Absolute Return Fund, L.P.; Berkshire Investors III LLC; Stockbridge Fund, L.P.; Stockbridge Partners LLC; Berkshire Partners Holdings LLC; Berkshire Partners LLC","owner_display_name":"Berkshire Fund IX-A, L.P.","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"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":1.0,"shares_display":"1","price_per_share":96.75,"price_display":"96.75","price_state":"stated","total_value":96.75,"total_display":"96.75","total_whole":"97","shares_owned_after":10598281.0,"shares_owned_after_display":"10,598,281","ownership_form":"I","is_10b5_1":null,"transaction_date":"2021-02-18","filed_date":"2021-02-22","scope":"insider"},{"id":2514574,"accession":"0000919574-20-007512","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000919574-20-007512","line_url":"/filing/0000919574-20-007512","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Berkshire Investors III LLC; Stockbridge Absolute Return Fund, L.P.; Berkshire Partners Holdings LLC; Berkshire Fund IX, L.P.; Stockbridge Partners LLC; Berkshire Investors IV LLC; BPSP, L.P.; Berkshire Partners LLC; Berkshire Fund IX-A, L.P.; Stockbridge Fund, L.P.","owner_display_name":"Berkshire Investors III LLC","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"officer_title":null,"security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":1670000.0,"shares_display":"1,670,000","price_per_share":75.0,"price_display":"75.00","price_state":"stated","total_value":125250000.0,"total_display":"125,250,000.00","total_whole":"125,250,000","shares_owned_after":10598280.0,"shares_owned_after_display":"10,598,280","ownership_form":"I","is_10b5_1":null,"transaction_date":"2020-12-10","filed_date":"2020-12-14","scope":"insider","n_lines":3},{"id":2330706,"accession":"0000919574-20-007248","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0000919574-20-007248","line_url":"/filing/0000919574-20-007248#line-4","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Berkshire Investors III LLC; Stockbridge Absolute Return Fund, L.P.; Berkshire Partners Holdings LLC; Berkshire Fund IX, L.P.; Stockbridge Partners LLC; BPSP, L.P.; Berkshire Investors IV LLC; Berkshire Partners LLC; Berkshire Fund IX-A, L.P.; Stockbridge Fund, L.P.","owner_display_name":"Berkshire Investors III LLC","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"officer_title":null,"security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":55736.0,"shares_display":"55,736","price_per_share":64.1941,"price_display":"64.19","price_state":"stated","total_value":3577922.3576,"total_display":"3,577,922.36","total_whole":"3,577,922","shares_owned_after":12227153.0,"shares_owned_after_display":"12,227,153","ownership_form":"I","is_10b5_1":null,"transaction_date":"2020-11-18","filed_date":"2020-11-18","scope":"insider"},{"id":2330701,"accession":"0000919574-20-007248","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000919574-20-007248","line_url":"/filing/0000919574-20-007248#line-3","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Berkshire Investors III LLC; Stockbridge Absolute Return Fund, L.P.; Berkshire Partners Holdings LLC; Berkshire Fund IX, L.P.; Stockbridge Partners LLC; BPSP, L.P.; Berkshire Investors IV LLC; Berkshire Partners LLC; Berkshire Fund IX-A, L.P.; Stockbridge Fund, L.P.","owner_display_name":"Berkshire Investors III LLC","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"officer_title":null,"security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":50000.0,"shares_display":"50,000","price_per_share":64.1355,"price_display":"64.14","price_state":"stated","total_value":3206775.0,"total_display":"3,206,775.00","total_whole":"3,206,775","shares_owned_after":12282889.0,"shares_owned_after_display":"12,282,889","ownership_form":"I","is_10b5_1":null,"transaction_date":"2020-11-17","filed_date":"2020-11-18","scope":"insider"},{"id":2330697,"accession":"0000919574-20-007248","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000919574-20-007248","line_url":"/filing/0000919574-20-007248","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Berkshire Investors III LLC; Stockbridge Absolute Return Fund, L.P.; Berkshire Partners Holdings LLC; Berkshire Fund IX, L.P.; Stockbridge Partners LLC; BPSP, L.P.; Berkshire Investors IV LLC; Berkshire Partners LLC; Berkshire Fund IX-A, L.P.; Stockbridge Fund, L.P.","owner_display_name":"Berkshire Investors III LLC","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"officer_title":null,"security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":90000.0,"shares_display":"90,000","price_per_share":65.2588,"price_display":"65.26","price_state":"stated","total_value":5873292.0,"total_display":"5,873,292.00","total_whole":"5,873,292","shares_owned_after":12332889.0,"shares_owned_after_display":"12,332,889","ownership_form":"I","is_10b5_1":null,"transaction_date":"2020-11-16","filed_date":"2020-11-18","scope":"insider","n_lines":2},{"id":2786146,"accession":"0000919574-20-007016","txn_seq":4,"anchor":"line-4","filing_url":"/filing/0000919574-20-007016","line_url":"/filing/0000919574-20-007016#line-4","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Berkshire Fund IX, L.P.; BPSP, L.P.; Berkshire Investors IV LLC; Berkshire Fund IX-A, L.P.; Stockbridge Partners LLC; Berkshire Partners LLC; Stockbridge Fund, L.P.; Berkshire Partners Holdings LLC; Stockbridge Absolute Return Fund, L.P.; Berkshire Investors III LLC","owner_display_name":"Berkshire Fund IX, L.P.","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"officer_title":null,"security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":18820.0,"shares_display":"18,820","price_per_share":64.1464,"price_display":"64.15","price_state":"stated","total_value":1207235.248,"total_display":"1,207,235.25","total_whole":"1,207,235","shares_owned_after":12422889.0,"shares_owned_after_display":"12,422,889","ownership_form":"I","is_10b5_1":null,"transaction_date":"2020-11-13","filed_date":"2020-11-13","scope":"insider"},{"id":2786141,"accession":"0000919574-20-007016","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000919574-20-007016","line_url":"/filing/0000919574-20-007016#line-3","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Berkshire Fund IX, L.P.; BPSP, L.P.; Berkshire Investors IV LLC; Berkshire Fund IX-A, L.P.; Stockbridge Partners LLC; Berkshire Partners LLC; Stockbridge Fund, L.P.; Berkshire Partners Holdings LLC; Stockbridge Absolute Return Fund, L.P.; Berkshire Investors III LLC","owner_display_name":"Berkshire Fund IX, L.P.","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"officer_title":null,"security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":800.0,"shares_display":"800","price_per_share":64.0,"price_display":"64.00","price_state":"stated","total_value":51200.0,"total_display":"51,200.00","total_whole":"51,200","shares_owned_after":12441709.0,"shares_owned_after_display":"12,441,709","ownership_form":"I","is_10b5_1":null,"transaction_date":"2020-11-12","filed_date":"2020-11-13","scope":"insider"},{"id":2786136,"accession":"0000919574-20-007016","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000919574-20-007016","line_url":"/filing/0000919574-20-007016","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Berkshire Fund IX, L.P.; BPSP, L.P.; Berkshire Investors IV LLC; Berkshire Fund IX-A, L.P.; Stockbridge Partners LLC; Berkshire Partners LLC; Stockbridge Fund, L.P.; Berkshire Partners Holdings LLC; Stockbridge Absolute Return Fund, L.P.; Berkshire Investors III LLC","owner_display_name":"Berkshire Fund IX, L.P.","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"officer_title":null,"security_title":"Common Stock","transaction_code":"S","transaction_label":"Open-market sale","open_market":true,"acquired_disposed":"D","direction_word":"disposed","shares":120000.0,"shares_display":"120,000","price_per_share":65.091248,"price_display":"65.09","price_state":"stated","total_value":7810949.76,"total_display":"7,810,949.76","total_whole":"7,810,950","shares_owned_after":12486309.0,"shares_owned_after_display":"12,486,309","ownership_form":"I","is_10b5_1":null,"transaction_date":"2020-11-11","filed_date":"2020-11-13","scope":"insider","n_lines":2},{"id":2170313,"accession":"0000919574-20-004114","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000919574-20-004114","line_url":"/filing/0000919574-20-004114","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Berkshire Fund IX-A, L.P.; BPSP, L.P.; Berkshire Investors IV LLC; Berkshire Partners Holdings LLC; Berkshire Investors III LLC; Stockbridge Absolute Return Fund, L.P.; Berkshire Fund IX, L.P.; Stockbridge Partners LLC; Stockbridge Fund, L.P.; Berkshire Partners LLC","owner_display_name":"Berkshire Fund IX-A, L.P.","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"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":50.0,"shares_display":"50","price_per_share":43.71,"price_display":"43.71","price_state":"stated","total_value":2185.5,"total_display":"2,185.50","total_whole":"2,186","shares_owned_after":12562509.0,"shares_owned_after_display":"12,562,509","ownership_form":"I","is_10b5_1":null,"transaction_date":"2020-06-11","filed_date":"2020-06-15","scope":"insider","n_lines":3},{"id":8473316,"accession":"0000919574-19-006273","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000919574-19-006273","line_url":"/filing/0000919574-19-006273","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Stockbridge Partners LLC; Berkshire Partners Holdings LLC; Berkshire Fund IX, L.P.; Stockbridge Fund, L.P.; Berkshire Partners LLC; Berkshire Fund IX-A, L.P.; BPSP, L.P.; Berkshire Investors IV LLC; Stockbridge Absolute Return Fund, L.P.; Berkshire Investors III LLC","owner_display_name":"Stockbridge Partners LLC","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"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":11610.0,"shares_display":"11,610","price_per_share":32.86386137812231,"price_display":"32.86","price_state":"stated","total_value":381549.4306,"total_display":"381,549.43","total_whole":"381,549","shares_owned_after":12562461.0,"shares_owned_after_display":"12,562,461","ownership_form":"I","is_10b5_1":null,"transaction_date":"2019-10-04","filed_date":"2019-10-07","scope":"insider","n_lines":2},{"id":8473305,"accession":"0000919574-19-006273","txn_seq":1,"anchor":"line-1","filing_url":"/filing/0000919574-19-006273","line_url":"/filing/0000919574-19-006273#line-1","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Stockbridge Partners LLC; Berkshire Partners Holdings LLC; Berkshire Fund IX, L.P.; Stockbridge Fund, L.P.; Berkshire Partners LLC; Berkshire Fund IX-A, L.P.; BPSP, L.P.; Berkshire Investors IV LLC; Stockbridge Absolute Return Fund, L.P.; Berkshire Investors III LLC","owner_display_name":"Stockbridge Partners LLC","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"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":85400.0,"shares_display":"85,400","price_per_share":31.4379,"price_display":"31.44","price_state":"stated","total_value":2684796.66,"total_display":"2,684,796.66","total_whole":"2,684,797","shares_owned_after":12550851.0,"shares_owned_after_display":"12,550,851","ownership_form":"I","is_10b5_1":null,"transaction_date":"2019-10-03","filed_date":"2019-10-07","scope":"insider"},{"id":8144390,"accession":"0000919574-19-006205","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000919574-19-006205","line_url":"/filing/0000919574-19-006205#line-3","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"BPSP, L.P.; Berkshire Investors IV LLC; Berkshire Fund IX, L.P.; Stockbridge Absolute Return Fund, L.P.; Berkshire Investors III LLC; Stockbridge Fund, L.P.; Berkshire Fund IX-A, L.P.; Berkshire Partners LLC; Berkshire Partners Holdings LLC; Stockbridge Partners LLC","owner_display_name":"BPSP, L.P.","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"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":140458.0,"shares_display":"140,458","price_per_share":31.5723,"price_display":"31.57","price_state":"stated","total_value":4434582.1134,"total_display":"4,434,582.11","total_whole":"4,434,582","shares_owned_after":12465451.0,"shares_owned_after_display":"12,465,451","ownership_form":"I","is_10b5_1":null,"transaction_date":"2019-10-02","filed_date":"2019-10-03","scope":"insider"},{"id":8144389,"accession":"0000919574-19-006205","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000919574-19-006205","line_url":"/filing/0000919574-19-006205","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"BPSP, L.P.; Berkshire Investors IV LLC; Berkshire Fund IX, L.P.; Stockbridge Absolute Return Fund, L.P.; Berkshire Investors III LLC; Stockbridge Fund, L.P.; Berkshire Fund IX-A, L.P.; Berkshire Partners LLC; Berkshire Partners Holdings LLC; Stockbridge Partners LLC","owner_display_name":"BPSP, L.P.","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"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":89415.0,"shares_display":"89,415","price_per_share":32.27561424816865,"price_display":"32.28","price_state":"stated","total_value":2885924.048,"total_display":"2,885,924.05","total_whole":"2,885,924","shares_owned_after":12323693.0,"shares_owned_after_display":"12,323,693","ownership_form":"I","is_10b5_1":null,"transaction_date":"2019-10-01","filed_date":"2019-10-03","scope":"insider","n_lines":2},{"id":7808810,"accession":"0000919574-19-005829","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000919574-19-005829","line_url":"/filing/0000919574-19-005829","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Berkshire Fund IX-A, L.P.; BPSP, L.P.; Berkshire Investors IV LLC; Berkshire Investors III LLC; Stockbridge Absolute Return Fund, L.P.; Berkshire Fund IX, L.P.; Stockbridge Partners LLC; Berkshire Partners LLC; Stockbridge Fund, L.P.; Berkshire Partners Holdings LLC","owner_display_name":"Berkshire Fund IX-A, L.P.","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"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":2000000.0,"shares_display":"2,000,000","price_per_share":29.75,"price_display":"29.75","price_state":"stated","total_value":59500000.0,"total_display":"59,500,000.00","total_whole":"59,500,000","shares_owned_after":12235578.0,"shares_owned_after_display":"12,235,578","ownership_form":"I","is_10b5_1":null,"transaction_date":"2019-09-10","filed_date":"2019-09-12","scope":"insider","n_lines":3},{"id":6218225,"accession":"0000919574-18-005926","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000919574-18-005926","line_url":"/filing/0000919574-18-005926","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Stockbridge Fund, L.P.; Berkshire Partners LLC; BPSP, L.P.; Berkshire Investors IV LLC; Berkshire Fund IX-A, L.P.; Stockbridge Partners LLC; Berkshire Fund IX, L.P.; Stockbridge Absolute Return Fund, L.P.; Berkshire Partners Holdings LLC; Berkshire Investors III LLC","owner_display_name":"Stockbridge Fund, L.P.","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"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":1500000.0,"shares_display":"1,500,000","price_per_share":30.08,"price_display":"30.08","price_state":"stated","total_value":45120000.0,"total_display":"45,120,000.00","total_whole":"45,120,000","shares_owned_after":10303888.0,"shares_owned_after_display":"10,303,888","ownership_form":"I","is_10b5_1":null,"transaction_date":"2018-08-28","filed_date":"2018-08-29","scope":"insider","n_lines":3},{"id":4842655,"accession":"0000919574-17-005768","txn_seq":12,"anchor":"line-12","filing_url":"/filing/0000919574-17-005768","line_url":"/filing/0000919574-17-005768","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Stockbridge Absolute Return Fund, L.P.; Berkshire Investors III LLC; BPSP, L.P.; Berkshire Investors IV LLC; Berkshire Partners Holdings LLC; Berkshire Fund IX-A, L.P.; Stockbridge Fund, L.P.; Berkshire Partners LLC; Stockbridge Partners LLC; Berkshire Fund IX, L.P.","owner_display_name":"Stockbridge Absolute Return Fund, L.P.","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"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":2187302.0,"shares_display":"2,187,302","price_per_share":20.963676491174972,"price_display":"20.96","price_state":"stated","total_value":45853891.5165,"total_display":"45,853,891.52","total_whole":"45,853,892","shares_owned_after":8851513.0,"shares_owned_after_display":"8,851,513","ownership_form":"I","is_10b5_1":null,"transaction_date":"2017-08-07","filed_date":"2017-08-07","scope":"insider","n_lines":6},{"id":4842630,"accession":"0000919574-17-005768","txn_seq":6,"anchor":"line-6","filing_url":"/filing/0000919574-17-005768","line_url":"/filing/0000919574-17-005768","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Stockbridge Absolute Return Fund, L.P.; Berkshire Investors III LLC; BPSP, L.P.; Berkshire Investors IV LLC; Berkshire Partners Holdings LLC; Berkshire Fund IX-A, L.P.; Stockbridge Fund, L.P.; Berkshire Partners LLC; Stockbridge Partners LLC; Berkshire Fund IX, L.P.","owner_display_name":"Stockbridge Absolute Return Fund, L.P.","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"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":66900.0,"shares_display":"66,900","price_per_share":19.5758,"price_display":"19.58","price_state":"stated","total_value":1309621.02,"total_display":"1,309,621.02","total_whole":"1,309,621","shares_owned_after":6719944.0,"shares_owned_after_display":"6,719,944","ownership_form":"I","is_10b5_1":null,"transaction_date":"2017-08-04","filed_date":"2017-08-07","scope":"insider","n_lines":3},{"id":4842620,"accession":"0000919574-17-005768","txn_seq":3,"anchor":"line-3","filing_url":"/filing/0000919574-17-005768","line_url":"/filing/0000919574-17-005768#line-3","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Stockbridge Absolute Return Fund, L.P.; Berkshire Investors III LLC; BPSP, L.P.; Berkshire Investors IV LLC; Berkshire Partners Holdings LLC; Berkshire Fund IX-A, L.P.; Stockbridge Fund, L.P.; Berkshire Partners LLC; Stockbridge Partners LLC; Berkshire Fund IX, L.P.","owner_display_name":"Stockbridge Absolute Return Fund, L.P.","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"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":1157258.0,"shares_display":"1,157,258","price_per_share":19.1927,"price_display":"19.19","price_state":"stated","total_value":22210905.6166,"total_display":"22,210,905.62","total_whole":"22,210,906","shares_owned_after":6654056.0,"shares_owned_after_display":"6,654,056","ownership_form":"I","is_10b5_1":null,"transaction_date":"2017-08-03","filed_date":"2017-08-07","scope":"insider"},{"id":4842615,"accession":"0000919574-17-005768","txn_seq":2,"anchor":"line-2","filing_url":"/filing/0000919574-17-005768","line_url":"/filing/0000919574-17-005768#line-2","is_derivative":false,"issuer_cik":"0001312988","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","issuer_ticker":"WMS","issuer_name_source":null,"issuer_url":"/issuer/0001312988","owner_cik":null,"owner_name":"Stockbridge Absolute Return Fund, L.P.; Berkshire Investors III LLC; BPSP, L.P.; Berkshire Investors IV LLC; Berkshire Partners Holdings LLC; Berkshire Fund IX-A, L.P.; Stockbridge Fund, L.P.; Berkshire Partners LLC; Stockbridge Partners LLC; Berkshire Fund IX, L.P.","owner_display_name":"Stockbridge Absolute Return Fund, L.P.","owner_url":null,"role":"Ten percent owner","role_mark":null,"role_mark_label":"Not attributed","role_mark_generic":"Not stated","n_reporting_owners":10,"other_reporting_owners":9,"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":17645.0,"shares_display":"17,645","price_per_share":19.1927,"price_display":"19.19","price_state":"stated","total_value":338655.1915,"total_display":"338,655.19","total_whole":"338,655","shares_owned_after":51476.0,"shares_owned_after_display":"51,476","ownership_form":"D","is_10b5_1":null,"transaction_date":"2017-08-03","filed_date":"2017-08-07","scope":"insider"}],"collapsed":true,"next_cursor":"2017-08-03|4842615","ledger_fault":false,"count":{"value":0,"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":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":0},"affiliations":[{"type":"issuer","type_label":"ISSUER","cik":"0001604028","name":"ADVANCED DRAINAGE SYSTEMS, INC.","url":"/issuer/0001604028","role":"Ten percent owner","n_filings":14,"first_seen":"2017-08-07","last_seen":"2021-12-16"},{"type":"issuer","type_label":"ISSUER","cik":"0001419852","name":"MATTRESS FIRM HOLDING CORP.","url":"/issuer/0001419852","role":"Ten percent owner","n_filings":7,"first_seen":"2016-02-09","last_seen":"2016-04-27"},{"type":"issuer","type_label":"ISSUER","cik":"0001060822","name":"CARTERS INC","url":"/issuer/0001060822","role":"Ten percent owner","n_filings":17,"first_seen":"2010-11-08","last_seen":"2012-04-30"}],"order_statement":"Newest transaction date first, id breaking the tie.","canonical_url":"https://ebomi.com/insider/0001501625","retrieved_at":"2026-08-23T20:46:20+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"}}