X0508 4 2024-05-21 0001604028 ADVANCED DRAINAGE SYSTEMS, INC. WMS 0001756972 HARVEY DARIN S. C/O ADVANCED DRAINAGE SYSTEMS, INC. 4640 TRUEMAN BOULEVARD HILLIARD OH 43026 false true false false EVP, Supply Chain & Logistics false Common Stock 2024-05-21 4 S false 4133 177.8890 D 4125 D Common Stock 2024-05-21 4 M false 2806 105.82 A 6931 D Common Stock 2024-05-21 4 M false 2578 99.29 A 9509 D Common Stock 2024-05-21 4 S false 5384 177.8322 D 4125 D Common Stock 15233.3257 I By KSOP Option to Purchase Common Stock 105.82 2024-05-21 4 M false 2806 0 D 2031-05-18 Common Stock 2806 0 D Option to Purchase Common Stock 99.29 2024-05-21 4 M false 2578 0 D 2032-05-17 Common Stock 2578 1288 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $177.87 to $177.91, inclusive. The reporting person undertakes to provide to Advanced Drainage Systems, Inc., any security holder of Advanced Drainage Systems, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $177.33 to $178.33, inclusive. The reporting person undertakes to provide to Advanced Drainage Systems, Inc., any security holder of Advanced Drainage Systems, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4. Represents current allocation under KSOP. The options vested in three equal annual installments beginning on May 18, 2022, provided that the Reporting Person remain continuously employed by the Issuer through each applicable vesting date. The options vest in three equal annual installments beginning on May 17, 2023, provided that the Reporting Person remain continuously employed by the Issuer through each applicable vesting date. /s/ Darin S. Harvey, by Scott A. Cottrill as attorney-in-fact 2024-05-23