{"url_path":"/sec/wms/10-k/2026/item-15","section_key":"item-15","section_title":"Item 15 Exhibits and Financial Statement Schedules","topic":"sec","document":{"doc_type":"10-K","doc_date":"2026-05-21","source_url":"https://www.sec.gov/Archives/edgar/data/1604028/0001604028-26-000019-index.html","accession_number":"0001604028-26-000019","cik":"0001604028","ticker":"WMS","issuer_name":"ADVANCED DRAINAGE SYSTEMS, INC.","edgar_url":"https://www.sec.gov/Archives/edgar/data/1604028/0001604028-26-000019-index.html","primary_entity_key":"0001604028","primary_entity_name":"ADVANCED DRAINAGE SYSTEMS, INC."},"word_count":2832,"has_tables":true,"body_markdown":"Item 15.    Exhibits and Financial Statement Schedules\n\n1.Financial Statements. See “Table of Contents” on page [50](#ieb5bb33133ed4902a5089ffadf55276a_130).\n\n2.Financial Statement Schedules. Schedule II - Consolidated Valuation and Qualifying Accounts.\n\nOther schedules are omitted because they are not required or applicable, or the required information is included in our     consolidated financial statements or related notes.\n\n3.Exhibits. See “Index to Exhibits.”\n\nINDEX TO EXHIBITS\n\nExhibit\nNumber Description\n\n2.1\n[Master Share Purchase Agreement between NORMA Group SE and Advanced Drainage Systems, Inc. (incorporated by reference to Exhibit 2.1 to our Current Report on Form 8-K filed on September 23, 2025).](https://www.sec.gov/Archives/edgar/data/1604028/000119312525212097/d920204dex21.htm)\n\n3.1 \n[Amended and Restated Certificate of Incorporation of Advanced Drainage Systems, Inc. (incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities and Exchange Commission on July 30, 2014).](https://www.sec.gov/Archives/edgar/data/1604028/000119312514286919/d764693dex31.htm)\n\n   \n\n3.1A \n[Certificate of Amendment to Certificate of Incorporation (incorporated by reference to Exhibit 3.1 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities and Exchange Commission on July 24, 2020).](https://www.sec.gov/Archives/edgar/data/1604028/000156459020033392/wms-ex31_28.htm)\n\n   \n\n3.2 \n[Second Amended and Restated Bylaws of Advanced Drainage Systems, Inc. (incorporated by reference to Exhibit 3.2 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities and Exchange Commission on July 30, 2014).](https://www.sec.gov/Archives/edgar/data/1604028/000119312514286919/d764693dex32.htm)\n\n   \n\n 3.2A \n[First Amendment to Second Amended and Restated Bylaws of Advanced Drainage Systems, Inc. (incorporated by reference to Exhibit 3.2 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities and Exchange Commission on July 24, 2020).](https://www.sec.gov/Archives/edgar/data/1604028/000156459020033392/wms-ex32_29.htm)\n\n   \n\n4.1 \n[Form of Common Stock Certificate (incorporated by reference to Exhibit 4.2 to Amendment No. 5 to the Registrant’s Registration Statement on Form S-1 (File No. 333-194980) filed with the Securities and Exchange Commission on July 14, 2014).](https://www.sec.gov/Archives/edgar/data/1604028/000119312514267069/d695165dex42.htm)\n\n   \n\n4.2 \n[Registration Rights Agreement, dated as of July 30, 2014, by and among Advanced Drainage Systems, Inc. and the stockholders from time to time party thereto (incorporated by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities and Exchange Commission on July 30, 2014).](https://www.sec.gov/Archives/edgar/data/1604028/000119312514286919/d764693dex41.htm)\n\n   \n\n4.3 \n[Description of Registrant's Securities.](https://www.sec.gov/Archives/edgar/data/1604028/000156459020027846/wms-ex44_637.htm)\n\n   \n\n4.4 \n[Indenture, dated September 23, 2019, among Advanced Drainage Systems, Inc., each of the guarantors party thereto and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities and Exchange Commission on September 23, 2019).](https://www.sec.gov/Archives/edgar/data/1604028/000156459019035206/wms-ex41_19.htm)\n\n   \n\n4.5 \n[Form of 5.000% Senior Notes due 2027 (included with Indenture, dated September 23, 2019, among Advanced Drainage Systems, Inc., each of the guarantors party thereto and U.S. Bank National Association, as trustee) (incorporated by reference to Exhibit 4.2 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities and Exchange Commission on September 23, 2019).](https://www.sec.gov/Archives/edgar/data/1604028/000156459019035206/wms-ex41_19.htm)\n\n   \n\n4.6 \n[First Supplemental Indenture, dated March 31, 2021 among Advanced Drainage Systems, Inc., each of the guarantors party thereto and U.S. Bank National Association, as trustee](https://www.sec.gov/Archives/edgar/data/1604028/000156459021030419/wms-ex47_226.htm) (incorporated by reference to Exhibit 4.7 to the Registrant’s Annual Report on Form 10-K (File No. 001-36557) filed with the Securities and Exchange Commission on May 27, 2021).\n\n4.7\n[Shareholder Agreement, dated as of August 19, 2021, by and between Advanced Drainage Systems, Inc. and Canada Pension Plan Investment Board (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities and Exchange Commission on August 20, 2021).](https://www.sec.gov/Archives/edgar/data/1604028/000119312521251963/d192515dex101.htm)\n\n4.8\n[Registration Rights Agreement, dated as of August 19, 2021, by and between Advanced Drainage Systems, Inc. and Canada Pension Plan Investment Board (incorporated by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities and Exchange Commission on August 20, 2021).](https://www.sec.gov/Archives/edgar/data/1604028/000119312521251963/d192515dex102.htm)\n\n4.9\n[Indenture, dated June 9, 2022, among Advanced Drainage Systems, Inc., each of the guarantors party thereto and U.S. Bank Trust Company, National Association, as trustee (incorporated by reference to Exhibit 4.1 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities Exchange Commission on June 9, 2022).](https://www.sec.gov/Archives/edgar/data/1604028/000160402822000038/wms-06092022xindenture.htm)\n\n4.10\n[Form of 6.375% Senior Note due 2030 (included with Indenture, dated June 9, 2022, among Advanced Drainage Systems, Inc., each of the guarantors party thereto and U.S. Bank Trust Company, National Association, as trustee) (incorporated by reference to Exhibit 4.2 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities Exchange Commission on June 9, 2022).](https://www.sec.gov/Archives/edgar/data/1604028/000160402822000038/wms-06092022xindenture.htm)\n\n   \n\n45\n\n[Table of Contents](#ieb5bb33133ed4902a5089ffadf55276a_1)\n\nAdvanced Drainage Systems, Inc\n\nExhibit\nNumber Description\n\n4.11\n[Indenture, dated February 27, 2026, among Advanced Drainage Systems, Inc., each of the guarantors party thereto and U.S. Bank Trust Company, National Association, as trustee (incorporated by reference to Exhibit 4.1 to the Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on February 27, 2026).](https://www.sec.gov/Archives/edgar/data/1604028/000119312526082558/d113891dex41.htm)\n\n4.12\n[Fo](https://www.sec.gov/Archives/edgar/data/1604028/000119312526082558/d113891dex41.htm)[rm of 5.375% Senior Note Due 2034(incorporated by reference to Exhibit 4.2 to the Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on February 27, 2026).](https://www.sec.gov/Archives/edgar/data/1604028/000119312526082558/d113891dex41.htm)\n\n10.1 \n[Credit Agreement, dated as of July 31, 2019, by and among Advanced Drainage Systems, Inc., Barclays Bank PLC, as administrative agent, the several lenders from time to time party thereto, Barclays Bank PLC and Morgan Stanley Senior Funding, Inc., as joint lead arrangers, joint bookrunners, syndication agents and documentation agents (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities and Exchange Commission on August 1, 2019).](https://www.sec.gov/Archives/edgar/data/1604028/000156459019028023/wms-ex101_174.htm)\n\n10.1A\n[First Amendment to Credit Agreement, by and among the Advanced Drainage Systems, Inc., the banks and other financial institutions or entities parties thereto, constituting all the Lenders under the Credit Agreement, the Issuing Lenders party thereto and Barclays Bank PLC, as administrative agent (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities and Exchange Commission on September 30, 2019).](https://www.sec.gov/Archives/edgar/data/1604028/000156459019035921/wms-ex101_16.htm)\n\n10.1B\n[Second Amendment to Credit Agreement, by and among the Advanced Drainage Systems, Inc., the banks and other financial institutions or entities parties thereto, constituting the Required Lenders under the Credit Agreement and all the Revolving Lenders under the Credit Agreement, the Issuing Lenders party thereto, Barclays Bank PLC, as administrative agent under the Term Loan Facility and PNC Bank, National Association, as administrative agent under the Revolving Facility (incorporated by reference to Exhibit 10.1 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities Exchange Commission on May 27, 2022).](https://www.sec.gov/Archives/edgar/data/1604028/000119312522162500/d334806dex101.htm)\n\n10.1C\n[Third Amendment to Credit Agreement, by and among the Advanced Drainage Systems, Inc., the banks and other financial institutions or entities parties thereto, constituting the Required Lenders under the Credit Agreement and all the Revolving Lenders under the Credit Agreement, the Issuing Lenders party thereto, Barclays Bank PLC, as administrative agent under the Term Loan Facility and PNC Bank, National Association, as administrative agent under the Revolving Facility (incorporated by reference to Exhibit 10.1 to the Registrant's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on February 5, 2026).](https://www.sec.gov/Archives/edgar/data/1604028/000160402826000007/wms-12312025xexx101.htm)\n\n10.1D\n[Fourth Amendment to Credit Agreement, by and among the Advanced Drainage Systems, Inc., the banks and other financial institutions or entities parties thereto, constituting at least the Required Lenders under the Credit Agreement, the Issuing Lenders party thereto, Bank of America, N.A., as administrative agent under the Term Facility, Barclays Bank PLC, as Predecessor Administrative Agent and PNC Bank, National Association, as administrative agent under the Revolving Facility and as Successor Administrative Agent (incorporated by reference to Exhibit 10.1 to the Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission on February 27, 2026).](https://www.sec.gov/Archives/edgar/data/1604028/000119312526082558/d113891dex101.htm)\n\n10.2\n[Advanced Drainage Systems, Inc. Guarantee and Collateral Agreement (incorporated by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities and Exchange Commission on August 1, 2019).](https://www.sec.gov/Archives/edgar/data/1604028/000156459019028023/wms-ex102_175.htm)\n\n10.3†\n[Advanced Drainage Systems, Inc. 2013 Stock Option Plan (incorporated by reference to Exhibit 10.11 to Amendment No. 3 to the Registrant’s Registration Statement on Form S-1 (File No. 333-194980) filed with the Securities and Exchange Commission on June 20, 2014).](https://www.sec.gov/Archives/edgar/data/1604028/000119312514243949/d695165dex1011.htm)\n\n10.3A†\n[First Amendment to 2013 Stock Option Plan (incorporated by reference to Exhibit 10.2 to the Registrant’s Current Report on Form 8-K (File No. 001-36557) filed with the Securities and Exchange Commission on August 15, 2014).](https://www.sec.gov/Archives/edgar/data/1604028/000119312514311807/d776792dex102.htm)\n\n10.3B†\n[Form of Amendment to Pre-2017 Stock Option Agreements (incorporated by reference to Exhibit 10.11B of Form 10-K filed May 10, 2017).](https://www.sec.gov/Archives/edgar/data/1604028/000156459017011836/wms-ex1011b_1210.htm)\n\n10.4†\n[Executive Employment Agreement, dated as of September 1, 2017, by and between Advanced Drainage Systems, Inc. and D. Scott Barbour (incorporated by reference to Exhibit 10.3 to Form 8-K filed August 17, 2017).](https://www.sec.gov/Archives/edgar/data/1604028/000156459017017783/wms-ex103_7.htm)\n\n \n\n10.5†\n[Amended and Restated Executive Employment Agreement, dated as of June 20, 2014, by and between Advanced Drainage Systems, Inc. and Robert M. Klein (incorporated by reference to Exhibit 10.16 to Amendment No. 3 to the Registrant’s Registration Statement on Form S-1 (File No. 333-194980) filed with the Securities and Exchange Commission on June 20, 2014).](https://www.sec.gov/Archives/edgar/data/1604028/000119312514243949/d695165dex1016.htm)\n\n10.6†\n[Form of Indemnification Agreement (incorporated by reference to Exhibit 10.6 to Amendment No. 2 to the Registrant’s Registration Statement on Form S-1 (File No. 333-194980) filed with the Securities and Exchange Commission on June 6, 2014).](https://www.sec.gov/Archives/edgar/data/1604028/000119312514228800/d695165dex106.htm)\n\n10.7† \n[Form of Non-Qualified Stock Option Agreement (other than for Joseph A. Chlapaty) pursuant to 2013 Stock Option Plan (incorporated by reference to Exhibit 10.19 to Amendment No. 3 to the Registrant’s Registration Statement on Form S-1 (File No. 333-194980) filed with the Securities and Exchange Commission on June 20, 2014).](https://www.sec.gov/Archives/edgar/data/1604028/000119312514243949/d695165dex1019.htm)\n\n   \n\n10.8† \n[Form of Director Stock Agreement (incorporated by reference to Exhibit 10.21 to Amendment No. 4 to the Registrant’s Registration Statement on Form S-1 (File No. 333-194980) filed with the Securities and Exchange Commission on July 2, 2014).](https://www.sec.gov/Archives/edgar/data/1604028/000119312514258579/d695165dex1021.htm)\n\n   \n\n10.9 \n[Participation Agreement, dated as of July 17, 2000, by and between ADS Worldwide, Inc., Grupo Altima S.A. de C.V., and ADS Mexicana, S.A. de C.V. (formerly known as Sistemas Ecologicos de Drenaje, S.A. de C.V.), as amended on April 19, 2010, May 19, 2011, May 24, 2011, April 26, 2013 and January 31, 2014 (incorporated by reference to Exhibit 10.22 to Amendment No. 2 to the Registrant’s Registration Statement on Form S-1 (File No. 333-194980) filed with the Securities and Exchange Commission on June 6, 2014).](https://www.sec.gov/Archives/edgar/data/1604028/000119312514228800/d695165dex1022.htm)\n\n   \n\n46\n\n[Table of Contents](#ieb5bb33133ed4902a5089ffadf55276a_1)\n\nAdvanced Drainage Systems, Inc\n\nExhibit\nNumber Description\n\n10.10 \n[Interestholders Agreement, dated as of June 5, 2009, by and among Tubos y Plasticos ADS Chile Limitada, Tigre Chile S.A., and Tuberias T-A Limitada, joined by Advanced Drainage Systems, Inc. and Tigre S.A. — Tubos e Conexoes, as amended on July 31, 2009, October 2009, December 15, 2009, May 18, 2010, August 10, 2010, April 1, 2011 and January 25, 2012, with First Addendum to Interestholders Agreement, dated as of June 27, 2011 (incorporated by reference to Exhibit 10.23 to Amendment No. 3 to the Registrant’s Registration Statement on Form S-1 (File No. 333-194980) filed with the Securities and Exchange Commission on June 20, 2014).](https://www.sec.gov/Archives/edgar/data/1604028/000119312514243949/d695165dex1023.htm)\n\n   \n\n10.10A \n[Second Addendum to Interestholders Agreement, dated as of December 1, 2013 but entered into on September 30, 2014, by and among Tubos y Plasticos ADS Chile Limitada, Tigre Chile S.A., Tuberias Tigre-ADS Limitada, Advanced Drainage Systems, Inc. and Tigre S.A. — Tubos e Conexoes (incorporated by reference to Exhibit 10.3 to the Registrant’s Quarterly Report on Form 10-Q (File No. 001-36557) filed with the Securities and Exchange Commission on November 10, 2014).](https://www.sec.gov/Archives/edgar/data/1604028/000119312514405364/d798118dex103.htm)\n\n   \n\n10.11† \n[Executive Employment Agreement dated November 9, 2015, by and between the Company and Scott A. Cottrill (incorporated by reference to Exhibit 10.1 to Form 8-K filed November 9, 2015).](https://www.sec.gov/Archives/edgar/data/1604028/000119312515370960/d82776dex101.htm)\n\n   \n\n10.12 \n[Form of Non-Qualified Stock Option Agreement pursuant to 2013 Stock Option Plan](https://www.sec.gov/Archives/edgar/data/1604028/000119312517038539/d516724dex105.htm)[(incorporated by reference to Exhibit 10.5 to Form 8-K filed February 10, 2017).](https://www.sec.gov/Archives/edgar/data/1604028/000119312517038539/d516724dex105.htm)\n\n   \n\n10.13 \n[Advanced Drainage Systems, Inc. 2017 Omnibus Incentive Plan (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K, File No. 001-36557, filed on September 8, 2017).](https://www.sec.gov/Archives/edgar/data/1604028/000156459017018494/wms-ex101_8.htm)\n\n10.13A\n[First Amendment to Advanced Drainage Systems, Inc. 2017 Omnibus Incentive Plan (incorporated by reference to Annex A to the Registrant’s 2021 Proxy Statement (File No. 001-36557) filed with the Securities and Exchange Commission on June 9, 2021).](https://www.sec.gov/Archives/edgar/data/1604028/000156459021032261/wms-def14a_20210609.htm#ANNEX_A)\n\n   \n\n10.14 \n[Form of Restricted Stock Award Notice and Award Agreement pursuant to 2017 Omnibus Incentive Plan (incorporated by reference to Exhibit 10.2 to our Current Report on Form 8-K, File No. 001-36557, filed on September 8, 2017).](https://www.sec.gov/Archives/edgar/data/1604028/000156459017018494/wms-ex102_7.htm)\n\n   \n\n10.15 \n[Form of Notice of Grant of Stock Options and Stock Option Award Agreement pursuant to 2017 Omnibus Incentive Plan (incorporated by reference to Exhibit 10.3 to our Current Report on Form 8-K, File No. 001-36557, filed on September 8, 2017).](https://www.sec.gov/Archives/edgar/data/1604028/000156459017018494/wms-ex103_6.htm)\n\n10.16 \n[Form of Director Restricted Stock Award Notice and Award Agreement pursuant to 2017 Omnibus Incentive Plan (incorporated by reference to Exhibit 10.2 to our Quarterly Report on Form 10-Q, File No. 001-36557, filed on November 6, 2017).](https://www.sec.gov/Archives/edgar/data/1604028/000156459017021803/wms-ex102_475.htm)\n\n   \n\n10.17 \n[Form of Performance Unit Award Agreement pursuant to 2017 Omnibus Incentive Plan (incorporated by reference to Exhibit 10.1 of Form 8-K, filed on May 30, 2018).](https://www.sec.gov/Archives/edgar/data/1604028/000119312518178691/d594158dex101.htm)\n\n10.18\n[Confidentiality Agreement by and between the Company and Joseph A. Chlapaty (incorporated by reference to Exhibit 10.1 to our Current Report on Form 8-K, File No. 001-36557, filed on August 17, 2017).](https://www.sec.gov/Archives/edgar/data/1604028/000156459017017783/wms-ex101_6.htm)\n\n   \n\n10.19† \n[Executive Employment Agreement, dated as of November 10, 2016, by and between Advanced Drainage Systems, Inc. and Kevin C. Talley (incorporated by reference to Exhibit 10.36 of Form 10-K, filed on May 30, 2019).](https://www.sec.gov/Archives/edgar/data/1604028/000156459019020937/wms-ex1036_342.htm)\n\n   \n\n10.20† \n[Advanced Drainage Systems, Inc. Employee Stock Ownership Plan, as amended May 30, 2019 (incorporated by reference to Exhibit 4.1 to the Registrant's Quarterly Report on Form 10-Q (File No. 001-36557) filed with the Securities and Exchange Commission on August 1, 2019](https://www.sec.gov/Archives/edgar/data/1604028/000156459019028019/wms-ex41_84.htm).\n\n10.21†\n[Executive Employment Agreement, dated as of August 17, 2018, by and between Advanced Drainage Systems, Inc. and Darin S. Harvey (incorporated by reference to Exhibit 10.34 of Form 10-K, (File No. 001-36557) filed with the Securities and Exchange Commission on May 19, 2022).](https://www.sec.gov/Archives/edgar/data/1604028/000160402822000025/exhibit1034.htm)\n\n10.22†\n[Advanced Drainage Systems, Inc. Employee Stock Purchase Plan (incorporated by reference to Annex A to the Registrant’s Definitive Proxy Statement on Schedule 14A (File No. 001-36557) filed with the Commission on June 9, 2022).](https://www.sec.gov/Archives/edgar/data/1604028/000160402822000040/proxyfy2022.htm#ie0b3093e5a664095a16d048ebe6fbeb6_19)\n\n   \n\n10.23†\n[Executive Employment Agreement, dated as of September 1, 2020, by and between Advanced Drainage Systems, Inc. and Michael Huebert (incorporated by reference to Exhibit 10.26 of Form 10-K, (File No. 001-36557) filed with the Securities and Exchange Commission on May 16, 2024).](https://www.sec.gov/Archives/edgar/data/1604028/000160402824000011/wms-20240331xex1026.htm)\n\n10.24†\n[Executive Employment Agreement, dated as of June 1, 2023, by and between Advanced Drainage Systems, Inc. and Craig Taylor (incorporated by reference to Exhibit 10.26 of Form 10-K, (File No. 001-36557) filed with the Securities and Exchange Commission on May 15, 2025).](https://www.sec.gov/Archives/edgar/data/1604028/000160402825000012/wms-20250331xex1024.htm)\n\n10.25†\n[Executive Employment Agreement, dated as of June 15, 2020, by and between Advanced Drainage Systems, Inc. and Thomas Waun #](wms-20260331xexx1025.htm)\n\n10.26\n[Form of Restricted Stock Award Notice and Award Agreement](wms-20260331xexx1026.htm)[(with retirement provisions)](wms-20260331xexx1026.htm)[pursuant to 2017 Omnibus Incentive Plan.#](wms-20260331xexx1026.htm)\n\n10.27\n[Form of Notice of Grant of Stock Options and Stock Option Award Agreement](wms-20260331xexx1027.htm)[(with retirement provisions)](wms-20260331xexx1027.htm)[pursuant to 2017 Omnibus Incentive Plan.#](wms-20260331xexx1027.htm)\n\n10.28\n[Form of Performance Unit Award Agreement](wms-20260331xexx1028.htm)[(](wms-20260331xexx1028.htm)[with retirement provisions)](wms-20260331xexx1028.htm)[pursuant to 2017 Omnibus Incentive Plan](wms-20260331xexx1028.htm)[.#](wms-20260331xexx1028.htm)\n\n10.29\n[Form of Restricted Stock Award Notice and Award Agreement](wms-20260331xexx1029.htm)[(Canada)](wms-20260331xexx1029.htm)[pursuant to 2017 Omnibus Incentive Plan.#](wms-20260331xexx1029.htm)\n\n47\n\n[Table of Contents](#ieb5bb33133ed4902a5089ffadf55276a_1)\n\nAdvanced Drainage Systems, Inc\n\nExhibit\nNumber Description\n\n10.30\n[Form of Notice of Grant of Stock Options and Stock Option Award Agreement](wms-20260331xexx1030.htm)[(Can](wms-20260331xexx1030.htm)[a](wms-20260331xexx1030.htm)[da](wms-20260331xexx1030.htm)[)](wms-20260331xexx1030.htm)[pursuant to 2017 Omnibus Incentive Plan.#](wms-20260331xexx1030.htm)\n\n10.31\n[Form of Performance Unit Award Agreement](wms-20260331xexx1031.htm)[(Canada)](wms-20260331xexx1031.htm)[pursuant to 2017 Omnibus Incentive Plan](wms-20260331xexx1031.htm)[.#](wms-20260331xexx1031.htm)\n\n19.1\n[Advanced Drainage Systems, Inc. Policy Regarding Insider Trading, Tipping and Other Wrongful Disclosures (incorporated by reference to Exhibit 19.1 of Form 10-K, (File No. 001-36557) filed with the Securities and Exchange Commission on May 16, 2024).](https://www.sec.gov/Archives/edgar/data/1604028/000160402824000011/wms-20240331xex191.htm)\n\n21.1 \n[List of Subsidiaries. #](wms-20260331xex211.htm)\n\n   \n\n23.1 \n[Consent of Deloitte & Touche LLP. #](wms-20260331xex231.htm)\n\n   \n\n24.1 \n[Power of Attorney. #](wms-20260331xex241.htm)\n\n   \n\n31.1 \n[Certification of President and Chief Executive Officer of Advanced Drainage Systems, Inc. pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. #](wms-20260331xex311.htm)\n\n   \n\n31.2 \n[Certification of Executive Vice President and Chief Financial Officer of Advanced Drainage Systems, Inc. pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. #](wms-20260331xex312.htm)\n\n   \n\n32.1 \n[Certification of Principal Executive Officer of Advanced Drainage Systems, Inc. pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. #](wms-20260331xex321.htm)\n\n   \n\n32.2 \n[Certification of Principal Financial Officer of Advanced Drainage Systems, Inc. pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. #](wms-20260331xex322.htm)\n\n97.1\n[Advanced Drainage Systems, Inc. Policy Regarding Recoupment of Incentive-Based Compensation Upon Restatement or Misstatement of Financial Results, or as Required by Law (incorporated by reference to Exhibit 97.1 of Form 10-K, (File No. 001-36557) filed with the Securities and Exchange Commission on May 16, 2024).](https://www.sec.gov/Archives/edgar/data/1604028/000160402824000011/wms-20240331xex971.htm)\n\n   \n\n101.INS XBRL Instance Document. #\n\n   \n\n101.SCH XBRL Taxonomy Extension Schema. #\n\n   \n\n101.CAL XBRL Taxonomy Extension Calculation Linkbase. #\n\n   \n\n101.DEF XBRL Taxonomy Extension Definition Linkbase. #\n\n   \n\n101.LAB XBRL Taxonomy Extension Label Linkbase. #\n\n   \n\n101.PRE XBRL Taxonomy Extension Presentation Linkbase. #\n\n   \n\n104 Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101)\n\n†Management contract or compensatory plan.\n\n#Filed herewith."}