{"transactions":[{"id":705592,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-07-20T21:12:50.000Z","date":"2026-07-16","kind":"grant","planned":false,"acquired":true,"shares":1782,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":16240,"source":{"system":"sec-edgar","filing":"0001193125-26-309065","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000119312526309065/ownership.xml","form_type":"4"}},{"id":1083829,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-07-21T21:07:52.000Z","date":"2025-07-17","kind":"grant","planned":false,"acquired":true,"shares":1967,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":14458,"source":{"system":"sec-edgar","filing":"0000950170-25-097309","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000095017025097309/ownership.xml","form_type":"4"}},{"id":1450322,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-07-22T20:05:14.000Z","date":"2024-07-18","kind":"grant","planned":false,"acquired":true,"shares":1465,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":12491,"source":{"system":"sec-edgar","filing":"0000950170-24-085248","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000095017024085248/ownership.xml","form_type":"4"}},{"id":1606092,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-03-01T21:59:43.000Z","date":"2024-02-28","kind":"sale","planned":false,"acquired":false,"shares":762895,"price":163,"value":124351885.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares by Stockbridge Fund, L.P. (\"SF\") and other certain accounts (collectivelly, the \"Berkshire Entities\"). Stockbridge Associates LLC (\"SA\") is the general partner of SF. Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000919574-24-001850","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957424001850/ownership.xml","form_type":"4"}},{"id":1780792,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-09-15T00:27:06.000Z","date":"2023-09-14","kind":"sale","planned":false,"acquired":false,"shares":10000,"price":123.6576,"value":1236576.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares by Stockbridge Fund, L.P. (\"SF\"). Stockbridge Associates LLC (\"SA\") is the general partner of SF. Stockbridge Partners LLC (\"SP\") is the investment adviser to SF. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by SF. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":762895,"source":{"system":"sec-edgar","filing":"0000919574-23-005240","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423005240/ownership.xml","form_type":"4"}},{"id":1780791,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-09-15T00:27:06.000Z","date":"2023-09-12","kind":"sale","planned":false,"acquired":false,"shares":70000,"price":122.1895,"value":8553265.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $121.9832 to $122.4894. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares by Stockbridge Fund, L.P. (\"SF\"). Stockbridge Associates LLC (\"SA\") is the general partner of SF. Stockbridge Partners LLC (\"SP\") is the investment adviser to SF. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by SF. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":772895,"source":{"system":"sec-edgar","filing":"0000919574-23-005240","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423005240/ownership.xml","form_type":"4"}},{"id":1785564,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-09-08T01:22:37.000Z","date":"2023-09-07","kind":"sale","planned":false,"acquired":false,"shares":71474,"price":126.5287,"value":9043512.3038,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $126.071 to $126.9527. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and ExchangeCommission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares by Stockbridge Fund, L.P. (\"SF\"). Stockbridge Associates LLC (\"SA\") is the general partner of SF. Stockbridge Partners LLC (\"SP\") is the investment adviser to SF. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by SF. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":842895,"source":{"system":"sec-edgar","filing":"0000919574-23-005141","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423005141/ownership.xml","form_type":"4"}},{"id":1785563,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-09-08T01:22:37.000Z","date":"2023-09-06","kind":"sale","planned":false,"acquired":false,"shares":50000,"price":126.5586,"value":6327930.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $126.3907 to $126.9972. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and ExchangeCommission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares by Stockbridge Fund, L.P. (\"SF\"). Stockbridge Associates LLC (\"SA\") is the general partner of SF. Stockbridge Partners LLC (\"SP\") is the investment adviser to SF. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by SF. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":914369,"source":{"system":"sec-edgar","filing":"0000919574-23-005141","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423005141/ownership.xml","form_type":"4"}},{"id":1785562,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-09-08T01:22:37.000Z","date":"2023-09-05","kind":"sale","planned":false,"acquired":false,"shares":50000,"price":128.2726,"value":6413630.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $128.06 to $128.5894. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and ExchangeCommission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares by Stockbridge Fund, L.P. (\"SF\"). Stockbridge Associates LLC (\"SA\") is the general partner of SF. Stockbridge Partners LLC (\"SP\") is the investment adviser to SF. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by SF. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":964369,"source":{"system":"sec-edgar","filing":"0000919574-23-005141","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423005141/ownership.xml","form_type":"4"}},{"id":1790585,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-09-01T22:47:49.000Z","date":"2023-09-01","kind":"sale","planned":false,"acquired":false,"shares":15000,"price":131.0769,"value":1966153.5,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $131.015 to $131.0769. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and ExchangeCommission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares by Stockbridge Fund, L.P. (\"SF\"). Stockbridge Associates LLC (\"SA\") is the general partner of SF. Stockbridge Partners LLC (\"SP\") is the investment adviser to SF. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by SF. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":1014369,"source":{"system":"sec-edgar","filing":"0000919574-23-005108","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423005108/ownership.xml","form_type":"4"}},{"id":1790584,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-09-01T22:47:49.000Z","date":"2023-09-01","kind":"sale","planned":false,"acquired":false,"shares":110000,"price":130.3495,"value":14338445.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $130.015 to $131.0149. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and ExchangeCommission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares by Stockbridge Fund, L.P. (\"SF\"). Stockbridge Associates LLC (\"SA\") is the general partner of SF. Stockbridge Partners LLC (\"SP\") is the investment adviser to SF. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by SF. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":1029369,"source":{"system":"sec-edgar","filing":"0000919574-23-005108","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423005108/ownership.xml","form_type":"4"}},{"id":1790583,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-09-01T22:47:49.000Z","date":"2023-08-31","kind":"sale","planned":false,"acquired":false,"shares":200,"price":128.7617,"value":25752.34,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $128.6648 to $128.78. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares by Stockbridge Fund, L.P. (\"SF\"). Stockbridge Associates LLC (\"SA\") is the general partner of SF. Stockbridge Partners LLC (\"SP\") is the investment adviser to SF. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by SF. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":1139369,"source":{"system":"sec-edgar","filing":"0000919574-23-005108","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423005108/ownership.xml","form_type":"4"}},{"id":1790582,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-09-01T22:47:49.000Z","date":"2023-08-31","kind":"sale","planned":false,"acquired":false,"shares":74800,"price":128.0672,"value":9579426.56,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $127.6648 to $128.6647. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares by Stockbridge Fund, L.P. (\"SF\"). Stockbridge Associates LLC (\"SA\") is the general partner of SF. Stockbridge Partners LLC (\"SP\") is the investment adviser to SF. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by SF. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":1139569,"source":{"system":"sec-edgar","filing":"0000919574-23-005108","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423005108/ownership.xml","form_type":"4"}},{"id":1790581,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-09-01T22:47:49.000Z","date":"2023-08-30","kind":"sale","planned":false,"acquired":false,"shares":25000,"price":128.2726,"value":3206815.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $128.0571 to $128.5538. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares by Stockbridge Fund, L.P. (\"SF\"). Stockbridge Associates LLC (\"SA\") is the general partner of SF. Stockbridge Partners LLC (\"SP\") is the investment adviser to SF. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by SF. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":1214369,"source":{"system":"sec-edgar","filing":"0000919574-23-005108","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423005108/ownership.xml","form_type":"4"}},{"id":1796012,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-08-26T00:19:21.000Z","date":"2023-08-25","kind":"sale","planned":false,"acquired":false,"shares":50202,"price":122.8952,"value":6169584.8304,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $122.7500 to $123.2500. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares by Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Stockbridge Associates LLC (\"SA\") is the general partner of SF. Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":1239369,"source":{"system":"sec-edgar","filing":"0000919574-23-004985","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423004985/ownership.xml","form_type":"4"}},{"id":1796011,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-08-26T00:19:21.000Z","date":"2023-08-24","kind":"sale","planned":false,"acquired":false,"shares":5000,"price":124.8041,"value":624020.5,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $124.5268 to $124.8041. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares by Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Stockbridge Associates LLC (\"SA\") is the general partner of SF. Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":1289571,"source":{"system":"sec-edgar","filing":"0000919574-23-004985","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423004985/ownership.xml","form_type":"4"}},{"id":1796010,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-08-26T00:19:21.000Z","date":"2023-08-24","kind":"sale","planned":false,"acquired":false,"shares":23078,"price":122.8135,"value":2834289.953,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $122.5268 to $123.5267. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares by Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Stockbridge Associates LLC (\"SA\") is the general partner of SF. Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":1294571,"source":{"system":"sec-edgar","filing":"0000919574-23-004985","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423004985/ownership.xml","form_type":"4"}},{"id":1796009,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-08-26T00:19:21.000Z","date":"2023-08-23","kind":"sale","planned":false,"acquired":false,"shares":50000,"price":125.448,"value":6272400.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $125.1116 to $125.70. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares by Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Stockbridge Associates LLC (\"SA\") is the general partner of SF. Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":1317649,"source":{"system":"sec-edgar","filing":"0000919574-23-004985","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423004985/ownership.xml","form_type":"4"}},{"id":1796008,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-08-26T00:19:21.000Z","date":"2023-08-23","kind":"sale","planned":false,"acquired":false,"shares":100000,"price":124.5957,"value":12459570.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $124.1116 to $125.1115. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares by Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Stockbridge Associates LLC (\"SA\") is the general partner of SF. Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, SP, and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":1367649,"source":{"system":"sec-edgar","filing":"0000919574-23-004985","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423004985/ownership.xml","form_type":"4"}},{"id":1823982,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-07-24T20:30:17.000Z","date":"2023-07-20","kind":"grant","planned":false,"acquired":true,"shares":1986,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":11026,"source":{"system":"sec-edgar","filing":"0000899243-23-017493","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000089924323017493/doc4.xml","form_type":"4"}},{"id":1960530,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-03-09T21:51:02.000Z","date":"2023-03-07","kind":"other","acquired":true,"shares":466,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Family Trusts"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F6","text":"Represents Common Stock received as part of the distribution by the Berkshire Entities referred to in note (5) above."}],"balance_after":1196,"source":{"system":"sec-edgar","filing":"0000919574-23-002105","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423002105/ownership.xml","form_type":"4"}},{"id":1960529,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-03-09T21:51:02.000Z","date":"2023-03-07","kind":"other","acquired":true,"shares":2131,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F6","text":"Represents Common Stock received as part of the distribution by the Berkshire Entities referred to in note (5) above."}],"balance_after":9040,"source":{"system":"sec-edgar","filing":"0000919574-23-002105","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423002105/ownership.xml","form_type":"4"}},{"id":1960528,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-03-09T21:51:02.000Z","date":"2023-03-07","kind":"other","acquired":false,"shares":28880,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Berkshire Investors IV LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F5","text":"Represents Common Stock of the Issuer distributed by the Berkshire Entities (as defined aboove) to certain of their limited partners and members. The Reporting Person disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest, if any, therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held by Berkshire Investors IV LLC (\"BI IV\"). The Reporting Person is a managing member of BI IV. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI IV. The Reporting Person disclaims beneficial ownership of the shares held by BI IV, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000919574-23-002105","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423002105/ownership.xml","form_type":"4"}},{"id":1960527,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-03-09T21:51:02.000Z","date":"2023-03-07","kind":"other","acquired":false,"shares":30569,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Berkshire Investors III LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F5","text":"Represents Common Stock of the Issuer distributed by the Berkshire Entities (as defined aboove) to certain of their limited partners and members. The Reporting Person disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest, if any, therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held by Berkshire Investors III LLC (\"BI III\"). The Reporting Person is a managing member of BI III. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI III. The Reporting Person disclaims beneficial ownership of the shares held by BI III, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":0,"source":{"system":"sec-edgar","filing":"0000919574-23-002105","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423002105/ownership.xml","form_type":"4"}},{"id":1960526,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-03-09T21:51:02.000Z","date":"2023-03-07","kind":"other","acquired":false,"shares":1767235,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F5","text":"Represents Common Stock of the Issuer distributed by the Berkshire Entities (as defined aboove) to certain of their limited partners and members. The Reporting Person disclaims beneficial ownership in the reported securities except to the extent of his pecuniary interest, if any, therein."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held directly or indirectly by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":1467649,"source":{"system":"sec-edgar","filing":"0000919574-23-002105","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957423002105/ownership.xml","form_type":"4"}},{"id":2158154,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-15","kind":"sale","acquired":false,"shares":77,"price":136.0002,"value":10472.0154,"ownership":{"direct":false,"nature":"Berkshire Investors IV LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F10","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $136 to $136.0075. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held by Berkshire Investors IV LLC (\"BI IV\"). The Reporting Person is a managing member of BI IV. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI IV. The Reporting Person disclaims beneficial ownership of the shares held by BI IV, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":28880,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":21,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158153,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-15","kind":"sale","acquired":false,"shares":338,"price":135.5638,"value":45820.5644,"ownership":{"direct":false,"nature":"Berkshire Investors IV LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $135 to $135.9999. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held by Berkshire Investors IV LLC (\"BI IV\"). The Reporting Person is a managing member of BI IV. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI IV. The Reporting Person disclaims beneficial ownership of the shares held by BI IV, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":28957,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":20,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158152,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-14","kind":"sale","acquired":false,"shares":28,"price":136.5,"value":3822.0,"ownership":{"direct":false,"nature":"Berkshire Investors IV LLC"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held by Berkshire Investors IV LLC (\"BI IV\"). The Reporting Person is a managing member of BI IV. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI IV. The Reporting Person disclaims beneficial ownership of the shares held by BI IV, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":29295,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":19,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158151,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-14","kind":"sale","acquired":false,"shares":908,"price":135.7622,"value":123272.0776,"ownership":{"direct":false,"nature":"Berkshire Investors IV LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $135.5 to $136.4999. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held by Berkshire Investors IV LLC (\"BI IV\"). The Reporting Person is a managing member of BI IV. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI IV. The Reporting Person disclaims beneficial ownership of the shares held by BI IV, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":29323,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":18,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158150,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-13","kind":"sale","acquired":false,"shares":11,"price":137.65,"value":1514.15,"ownership":{"direct":false,"nature":"Berkshire Investors IV LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $137.5 to $138.05. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held by Berkshire Investors IV LLC (\"BI IV\"). The Reporting Person is a managing member of BI IV. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI IV. The Reporting Person disclaims beneficial ownership of the shares held by BI IV, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":30231,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":17,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158149,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-13","kind":"sale","acquired":false,"shares":754,"price":136.6201,"value":103011.5554,"ownership":{"direct":false,"nature":"Berkshire Investors IV LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $136.5 to $137.4999. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held by Berkshire Investors IV LLC (\"BI IV\"). The Reporting Person is a managing member of BI IV. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI IV. The Reporting Person disclaims beneficial ownership of the shares held by BI IV, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":30242,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":16,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158148,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-13","kind":"sale","acquired":false,"shares":85,"price":135.5077,"value":11518.1545,"ownership":{"direct":false,"nature":"Berkshire Investors IV LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $135.5 to $136.4999. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held by Berkshire Investors IV LLC (\"BI IV\"). The Reporting Person is a managing member of BI IV. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI IV. The Reporting Person disclaims beneficial ownership of the shares held by BI IV, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":30996,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":15,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158147,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-15","kind":"sale","acquired":false,"shares":76,"price":136.0002,"value":10336.0152,"ownership":{"direct":false,"nature":"Berkshire Investors III LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F10","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $136 to $136.0075. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held by Berkshire Investors III LLC (\"BI III\"). The Reporting Person is a managing member of BI III. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI III. The Reporting Person disclaims beneficial ownership of the shares held by BI III, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":30569,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":14,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158146,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-15","kind":"sale","acquired":false,"shares":333,"price":135.5638,"value":45142.7454,"ownership":{"direct":false,"nature":"Berkshire Investors III LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $135 to $135.9999. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held by Berkshire Investors III LLC (\"BI III\"). The Reporting Person is a managing member of BI III. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI III. The Reporting Person disclaims beneficial ownership of the shares held by BI III, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":30645,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":13,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158145,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-14","kind":"sale","acquired":false,"shares":27,"price":136.5,"value":3685.5,"ownership":{"direct":false,"nature":"Berkshire Investors III LLC"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held by Berkshire Investors III LLC (\"BI III\"). The Reporting Person is a managing member of BI III. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI III. The Reporting Person disclaims beneficial ownership of the shares held by BI III, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":30978,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":12,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158144,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-14","kind":"sale","acquired":false,"shares":894,"price":135.7622,"value":121371.4068,"ownership":{"direct":false,"nature":"Berkshire Investors III LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $135.5 to $136.4999. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held by Berkshire Investors III LLC (\"BI III\"). The Reporting Person is a managing member of BI III. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI III. The Reporting Person disclaims beneficial ownership of the shares held by BI III, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":31005,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":11,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158143,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-13","kind":"sale","acquired":false,"shares":11,"price":137.65,"value":1514.15,"ownership":{"direct":false,"nature":"Berkshire Investors III LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $137.5 to $138.05. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held by Berkshire Investors III LLC (\"BI III\"). The Reporting Person is a managing member of BI III. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI III. The Reporting Person disclaims beneficial ownership of the shares held by BI III, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":31899,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":10,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158142,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-13","kind":"sale","acquired":false,"shares":743,"price":136.6201,"value":101508.7343,"ownership":{"direct":false,"nature":"Berkshire Investors III LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $136.5 to $137.4999. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held by Berkshire Investors III LLC (\"BI III\"). The Reporting Person is a managing member of BI III. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI III. The Reporting Person disclaims beneficial ownership of the shares held by BI III, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":31910,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":9,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158141,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-13","kind":"sale","acquired":false,"shares":83,"price":135.5077,"value":11247.1391,"ownership":{"direct":false,"nature":"Berkshire Investors III LLC"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $135.5 to $136.4999. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held by Berkshire Investors III LLC (\"BI III\"). The Reporting Person is a managing member of BI III. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI III. The Reporting Person disclaims beneficial ownership of the shares held by BI III, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":32653,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158140,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-15","kind":"sale","acquired":false,"shares":4847,"price":136.0002,"value":659192.9694,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F10","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $136 to $136.0075. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held directly or indirectly by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":3234884,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158139,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-15","kind":"sale","acquired":false,"shares":21135,"price":135.5638,"value":2865140.913,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $135 to $135.9999. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held directly or indirectly by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":3239731,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158138,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-14","kind":"sale","acquired":false,"shares":1745,"price":136.5,"value":238192.5,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held directly or indirectly by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":3260866,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158137,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-14","kind":"sale","acquired":false,"shares":56788,"price":135.7622,"value":7709663.8136,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $135.5 to $136.4999. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held directly or indirectly by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":3262611,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158136,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-13","kind":"sale","acquired":false,"shares":678,"price":137.65,"value":93326.7,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $137.5 to $138.05. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held directly or indirectly by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":3319399,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158135,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-13","kind":"sale","acquired":false,"shares":47180,"price":136.6201,"value":6445736.318,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $136.5 to $137.4999. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held directly or indirectly by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":3320077,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2158134,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-15T23:32:51.000Z","date":"2022-09-13","kind":"sale","acquired":false,"shares":5303,"price":135.5077,"value":718597.3331,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $135.5 to $136.4999. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held directly or indirectly by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":3367257,"source":{"system":"sec-edgar","filing":"0000919574-22-005569","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005569/ownership.xml","form_type":"4"}},{"id":2161999,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-09T20:43:00.000Z","date":"2022-09-08","kind":"sale","acquired":false,"shares":83884,"price":138.6537,"value":11630826.9708,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F10","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $138.25 to $139.025. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held directly or indirectly by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":3372560,"source":{"system":"sec-edgar","filing":"0000919574-22-005494","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005494/ownership.xml","form_type":"4"}},{"id":2161998,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-09T20:43:00.000Z","date":"2022-09-08","kind":"sale","acquired":false,"shares":131116,"price":137.8545,"value":18074930.622,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $137.25 to $138. 2499. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held directly or indirectly by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":3456444,"source":{"system":"sec-edgar","filing":"0000919574-22-005494","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005494/ownership.xml","form_type":"4"}},{"id":2161997,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-09T20:43:00.000Z","date":"2022-09-08","kind":"sale","acquired":false,"shares":223720,"price":136.8612,"value":30618587.664,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $136.25 to $137. 2499. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held directly or indirectly by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":3587560,"source":{"system":"sec-edgar","filing":"0000919574-22-005494","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005494/ownership.xml","form_type":"4"}},{"id":2161996,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-09T20:43:00.000Z","date":"2022-09-08","kind":"sale","acquired":false,"shares":16000,"price":135.8729,"value":2173966.4,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $135.25 to $136.2499. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held directly or indirectly by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":3811280,"source":{"system":"sec-edgar","filing":"0000919574-22-005494","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005494/ownership.xml","form_type":"4"}},{"id":2161995,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-09T20:43:00.000Z","date":"2022-09-07","kind":"sale","acquired":false,"shares":226085,"price":135.4212,"value":30616702.002,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $135.00 to $135.985. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held directly or indirectly by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":3827280,"source":{"system":"sec-edgar","filing":"0000919574-22-005494","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005494/ownership.xml","form_type":"4"}},{"id":2161994,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-09-09T20:43:00.000Z","date":"2022-09-07","kind":"sale","acquired":false,"shares":73915,"price":134.8763,"value":9969381.7145,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $134.00 to $134.9999. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held directly or indirectly by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":4053365,"source":{"system":"sec-edgar","filing":"0000919574-22-005494","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005494/ownership.xml","form_type":"4"}},{"id":2179093,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-08-18T20:46:54.000Z","date":"2022-08-16","kind":"other","acquired":true,"shares":1158,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents Common Stock received by the Reporting Person's trusts as part of the distribution referred to in note (1) above."}],"balance_after":1940,"source":{"system":"sec-edgar","filing":"0000919574-22-005179","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005179/ownership.xml","form_type":"4"}},{"id":2179092,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-08-18T20:46:54.000Z","date":"2022-08-16","kind":"other","acquired":true,"shares":280,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Family Trusts"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents Common Stock received by the Reporting Person's trusts as part of the distribution referred to in note (1) above."}],"balance_after":730,"source":{"system":"sec-edgar","filing":"0000919574-22-005179","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005179/ownership.xml","form_type":"4"}},{"id":2179091,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-08-18T20:46:54.000Z","date":"2022-08-16","kind":"other","acquired":false,"shares":15499,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Berkshire Investors IV LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a pro rata in kind distribution of the Issuer's Common Stock by certain of the Berkshire Entities (as defined below), as well as BI III and BI IV (each as defined below), to their respective limited partners and members."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"Represents shares held by Berkshire Investors IV LLC (\"BI IV\"). The Reporting Person is a managing member of BI IV. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI IV. The Reporting Person disclaims beneficial ownership of the shares held by BI IV, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":31081,"source":{"system":"sec-edgar","filing":"0000919574-22-005179","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005179/ownership.xml","form_type":"4"}},{"id":2179090,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-08-18T20:46:54.000Z","date":"2022-08-16","kind":"other","acquired":false,"shares":15260,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Berkshire Investors III LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a pro rata in kind distribution of the Issuer's Common Stock by certain of the Berkshire Entities (as defined below), as well as BI III and BI IV (each as defined below), to their respective limited partners and members."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Represents shares held by Berkshire Investors III LLC (\"BI III\"). The Reporting Person is a managing member of BI III. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI III. The Reporting Person disclaims beneficial ownership of the shares held by BI III, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":32736,"source":{"system":"sec-edgar","filing":"0000919574-22-005179","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005179/ownership.xml","form_type":"4"}},{"id":2179089,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-08-18T20:46:54.000Z","date":"2022-08-16","kind":"other","acquired":false,"shares":969241,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a pro rata in kind distribution of the Issuer's Common Stock by certain of the Berkshire Entities (as defined below), as well as BI III and BI IV (each as defined below), to their respective limited partners and members."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held directly or indirectly by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"(continued from Footnote 3) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":4127280,"source":{"system":"sec-edgar","filing":"0000919574-22-005179","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422005179/ownership.xml","form_type":"4"}},{"id":2202567,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-07-25T21:50:14.000Z","date":"2022-07-21","kind":"grant","acquired":true,"shares":2453,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":4969,"source":{"system":"sec-edgar","filing":"0000899243-22-026674","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000089924322026674/doc4.xml","form_type":"4"}},{"id":2232239,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-06-14T21:20:10.000Z","date":"2022-06-10","kind":"other","acquired":true,"shares":782,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Trust"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents Common Stock received by the Reporting Person and his related trusts as part of the distribution referred to in note (1) above."}],"balance_after":782,"source":{"system":"sec-edgar","filing":"0000919574-22-003844","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422003844/ownership.xml","form_type":"4"}},{"id":2232238,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-06-14T21:20:10.000Z","date":"2022-06-10","kind":"other","acquired":true,"shares":450,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"By Family Trusts"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents Common Stock received by the Reporting Person and his related trusts as part of the distribution referred to in note (1) above."}],"balance_after":450,"source":{"system":"sec-edgar","filing":"0000919574-22-003844","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422003844/ownership.xml","form_type":"4"}},{"id":2232237,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-06-14T21:20:10.000Z","date":"2022-06-10","kind":"other","acquired":true,"shares":709,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents Common Stock received by the Reporting Person and his related trusts as part of the distribution referred to in note (1) above."}],"balance_after":2516,"source":{"system":"sec-edgar","filing":"0000919574-22-003844","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422003844/ownership.xml","form_type":"4"}},{"id":2232236,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-06-14T21:20:10.000Z","date":"2022-06-10","kind":"other","acquired":false,"shares":15527,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Berkshire Investors IV LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a pro rata in kind distribution of the Issuer's Common Stock by certain of the Berkshire Entities (as defined below), as well as BI III and BI IV (each as defined below), to their respective limited partners and members."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F6","text":"Represents shares held by Berkshire Investors IV LLC (\"BI IV\"). The Reporting Person is a managing member of BI IV. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI IV. The Reporting Person disclaims beneficial ownership of the shares held by BI IV, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":46580,"source":{"system":"sec-edgar","filing":"0000919574-22-003844","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422003844/ownership.xml","form_type":"4"}},{"id":2232235,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-06-14T21:20:10.000Z","date":"2022-06-10","kind":"other","acquired":false,"shares":15999,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"Berkshire Investors III LLC"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a pro rata in kind distribution of the Issuer's Common Stock by certain of the Berkshire Entities (as defined below), as well as BI III and BI IV (each as defined below), to their respective limited partners and members."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F5","text":"Represents shares held by Berkshire Investors III LLC (\"BI III\"). The Reporting Person is a managing member of BI III. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI III. The Reporting Person disclaims beneficial ownership of the shares held by BI III, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":47996,"source":{"system":"sec-edgar","filing":"0000919574-22-003844","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422003844/ownership.xml","form_type":"4"}},{"id":2232234,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-06-14T21:20:10.000Z","date":"2022-06-10","kind":"other","acquired":false,"shares":958052,"price":0,"value":0.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Represents a pro rata in kind distribution of the Issuer's Common Stock by certain of the Berkshire Entities (as defined below), as well as BI III and BI IV (each as defined below), to their respective limited partners and members."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held directly or indirectly by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts (collectively, the \"Berkshire Entities\"). Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"(continued from Footnote 3) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by the Berkshire Entities. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":5096521,"source":{"system":"sec-edgar","filing":"0000919574-22-003844","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422003844/ownership.xml","form_type":"4"}},{"id":2237255,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-06-09T22:39:25.000Z","date":"2022-06-09","kind":"sale","acquired":false,"shares":3060,"price":110.0781,"value":336838.986,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F8","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $110.00 to $110.15. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts. Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"(continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":6054573,"source":{"system":"sec-edgar","filing":"0000919574-22-003782","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422003782/ownership.xml","form_type":"4"}},{"id":2237254,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-06-09T22:39:25.000Z","date":"2022-06-09","kind":"sale","acquired":false,"shares":36533,"price":109.26,"value":3991595.58,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F7","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $109.00 to $109.9999. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts. Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"(continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":6057633,"source":{"system":"sec-edgar","filing":"0000919574-22-003782","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422003782/ownership.xml","form_type":"4"}},{"id":2237253,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-06-09T22:39:25.000Z","date":"2022-06-09","kind":"sale","acquired":false,"shares":69333,"price":108.327,"value":7510635.891,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $108.00 to $108.9999. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts. Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"(continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":6094166,"source":{"system":"sec-edgar","filing":"0000919574-22-003782","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422003782/ownership.xml","form_type":"4"}},{"id":2237252,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-06-09T22:39:25.000Z","date":"2022-06-08","kind":"sale","acquired":false,"shares":3766,"price":112.1507,"value":422359.5362,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $112.00 to $112.30. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts. Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"(continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":6163499,"source":{"system":"sec-edgar","filing":"0000919574-22-003782","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422003782/ownership.xml","form_type":"4"}},{"id":2237251,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-06-09T22:39:25.000Z","date":"2022-06-07","kind":"sale","acquired":false,"shares":53161,"price":113.093,"value":6012136.973,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F4","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $112.71 to $113.588. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts. Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"(continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":6167265,"source":{"system":"sec-edgar","filing":"0000919574-22-003782","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422003782/ownership.xml","form_type":"4"}},{"id":2237250,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-06-09T22:39:25.000Z","date":"2022-06-07","kind":"sale","acquired":false,"shares":146839,"price":112.2135,"value":16477318.1265,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions within the range of $111.71 to $112.7099. The Reporting Persons undertake to provide to the Issuer, any security holder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"Represents shares held by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\") and certain other accounts. Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"(continued from Footnote 2) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":6220426,"source":{"system":"sec-edgar","filing":"0000919574-22-003782","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957422003782/ownership.xml","form_type":"4"}},{"id":2469462,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-12-16T21:52:59.000Z","date":"2021-12-14","kind":"sale","acquired":false,"shares":10116,"price":125.25,"value":1267029.0,"ownership":{"direct":false,"nature":"Berkshire Investors IV LLC"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held by Berkshire Investors IV LLC (\"BI IV\"). The Reporting Person is a managing member of BI IV. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI IV. The Reporting Person disclaims beneficial ownership of the shares held by BI IV, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":62107,"source":{"system":"sec-edgar","filing":"0000919574-21-007454","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957421007454/ownership.xml","form_type":"4"}},{"id":2469461,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-12-16T21:52:59.000Z","date":"2021-12-14","kind":"sale","acquired":false,"shares":10114,"price":125.25,"value":1266778.5,"ownership":{"direct":false,"nature":"Berkshire Investors III LLC"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held by Berkshire Investors III LLC (\"BI III\"). The Reporting Person is a managing member of BI III. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI III. The Reporting Person disclaims beneficial ownership of the shares held by BI III, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":63995,"source":{"system":"sec-edgar","filing":"0000919574-21-007454","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957421007454/ownership.xml","form_type":"4"}},{"id":2469460,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-12-16T21:52:59.000Z","date":"2021-12-14","kind":"sale","acquired":false,"shares":729770,"price":125.25,"value":91403692.5,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\"), Stockbridge Absolute Return Fund, L.P. (\"SARF\") and certain other accounts. Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF and SARF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF, SARF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF, SARF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":6367265,"source":{"system":"sec-edgar","filing":"0000919574-21-007454","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957421007454/ownership.xml","form_type":"4"}},{"id":2512268,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-11-15T16:35:46.000Z","date":"2021-11-11","kind":"sale","acquired":false,"shares":9960,"price":126.79,"value":1262828.4,"ownership":{"direct":false,"nature":"Berkshire Investors IV LLC"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held by Berkshire Investors IV LLC (\"BI IV\"). The Reporting Person is a managing member of BI IV. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI IV. The Reporting Person disclaims beneficial ownership of the shares held by BI IV, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":72223,"source":{"system":"sec-edgar","filing":"0000919574-21-007033","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957421007033/ownership.xml","form_type":"4"}},{"id":2512267,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-11-15T16:35:46.000Z","date":"2021-11-11","kind":"sale","acquired":false,"shares":9958,"price":126.79,"value":1262574.82,"ownership":{"direct":false,"nature":"Berkshire Investors III LLC"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held by Berkshire Investors III LLC (\"BI III\"). The Reporting Person is a managing member of BI III. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI III. The Reporting Person disclaims beneficial ownership of the shares held by BI III, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":74109,"source":{"system":"sec-edgar","filing":"0000919574-21-007033","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957421007033/ownership.xml","form_type":"4"}},{"id":2512266,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-11-15T16:35:46.000Z","date":"2021-11-11","kind":"sale","acquired":false,"shares":620082,"price":126.79,"value":78620196.78,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\"), Stockbridge Absolute Return Fund, L.P. (\"SARF\") and certain other accounts. Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF and SARF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF, SARF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF, SARF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":7097035,"source":{"system":"sec-edgar","filing":"0000919574-21-007033","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957421007033/ownership.xml","form_type":"4"}},{"id":2567300,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-09-16T20:15:02.000Z","date":"2021-09-14","kind":"sale","acquired":false,"shares":15085,"price":109.75,"value":1655578.75,"ownership":{"direct":false,"nature":"Berkshire Investors IV LLC"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F4","text":"Represents shares held by Berkshire Investors IV LLC (\"BI IV\"). The Reporting Person is a managing member of BI IV. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI IV. The Reporting Person disclaims beneficial ownership of the shares held by BI IV, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":82183,"source":{"system":"sec-edgar","filing":"0000919574-21-005876","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957421005876/ownership.xml","form_type":"4"}},{"id":2567299,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-09-16T20:15:02.000Z","date":"2021-09-14","kind":"sale","acquired":false,"shares":15082,"price":109.75,"value":1655249.5,"ownership":{"direct":false,"nature":"Berkshire Investors III LLC"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F3","text":"Represents shares held by Berkshire Investors III LLC (\"BI III\"). The Reporting Person is a managing member of BI III. By virtue of the relationship described in the preceding sentence, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BI III. The Reporting Person disclaims beneficial ownership of the shares held by BI III, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":84067,"source":{"system":"sec-edgar","filing":"0000919574-21-005876","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957421005876/ownership.xml","form_type":"4"}},{"id":2567298,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-09-16T20:15:02.000Z","date":"2021-09-14","kind":"sale","acquired":false,"shares":1425823,"price":109.75,"value":156484074.25,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Represents shares held by Berkshire Fund IX, L.P. (\"BF IX\"), Berkshire Fund IX-A, L.P. (\"BF IX-A\"), Stockbridge Fund, L.P. (\"SF\"), Stockbridge Absolute Return Fund, L.P. (\"SARF\") and certain other accounts. Ninth Berkshire Associates LLC (\"9BA\") is the general partner of BF IX and BF IX-A, and Stockbridge Associates LLC (\"SA\") is the general partner of SF and SARF. Berkshire Partners LLC (\"BP\") is the investment adviser to BF IX and BF IX-A, and Stockbridge Partners LLC (\"SP\") is the investment adviser to SF, SARF and such certain other accounts. Berkshire Partners Holdings LLC (\"BPH\") is the general partner of BPSP, L.P. (\"BPSP\"), which is the managing member of BP and SP."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"(continued from Footnote 1) The Reporting Person is a managing member of BPH, BPSP, BP, SP, 9BA and SA. By virtue of the relationships described in the preceding sentences, the Reporting Person may be deemed to share beneficial ownership with respect to the shares of common stock held by BF IX, BF IX-A, SF, SARF and such other accounts. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 or for any other purpose."}],"balance_after":7717117,"source":{"system":"sec-edgar","filing":"0000919574-21-005876","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957421005876/ownership.xml","form_type":"4"}},{"id":2624662,"issuer":{"id":2328,"kind":"organization","name":"ADVANCED DRAINAGE SYSTEMS, INC.","symbol":"WMS"},"owners":[{"id":29444,"kind":"person","name":"Seetharam Anil","position":1,"cik":"0001676191","reported_name":"Seetharam Anil","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2021-07-26T20:58:02.000Z","date":"2021-07-22","kind":"grant","acquired":true,"shares":1807,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":1807,"source":{"system":"sec-edgar","filing":"0000919574-21-004689","document":"ownership.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1604028/000091957421004689/ownership.xml","form_type":"4"}}]}