X0306 4 2017-02-15 true 0001604028 ADVANCED DRAINAGE SYSTEMS, INC. WMS 0001614813 ASP ADS Investco, LLC C/O AMERICAN SECURITIES LLC 299 PARK AVE, 34TH FLOOR NEW YORK NY 10171 true 0001401897 American Securities Partners V, L.P. C/O AMERICAN SECURITIES LLC 299 PARK AVE, 34TH FLOOR NEW YORK NY 10017 true 0001401896 American Securities Partners V(B), L.P. C/O AMERICAN SECURITIES LLC 299 PARK AVE, 34TH FLOOR NEW YORK NY 10017 true 0001475482 American Securities Partners V (C) L.P. C/O AMERICAN SECURITIES LLC 299 PARK AVE, 34TH FLOOR NEW YORK NY 10017 true 0001475484 American Securities Associates V, LLC C/O AMERICAN SECURITIES LLC 299 PARK AVE, 34TH FLOOR NEW YORK NY 10017 true 0001475483 AMERICAN SECURITIES LLC 299 PARK AVE, 34TH FLOOR NEW YORK NY 10171 true Common Stock 2017-02-15 4 S 0 3750000 22.15 D 3796908 D The shares are directly owned by ASP ADS Investco, LLC ("ASPADS") and may also be deemed to be indirectly beneficially owned by: (i) American Securities Partners V, L.P., American Securities Partners V(B), L.P. and American Securities Partners V(C), L.P. (each, a "Sponsor"), the owners of membership interests in ASPADS; and (ii) American Securities Associates V, LLC ("GP"), the general partner of each Sponsor. American Securities LLC provides investment advisory services to each Sponsor. Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of such Reporting Person's pecuniary interest therein, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of the securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose. Exhibit 99.1 Joint Filer Information, incorporated herein by reference. ASP ADS Investco, LLC By: ASP Manager Corp., its manager By: /s/ Michael G. Fisch, Michael G. Fisch, President 2017-02-17 American Securities Partners V, L.P. By: American Securities Associates V, LLC, its general partner By: /s/ Michael G. Fisch, Michael G. Fisch, as Managing Member 2017-02-17 American Securities Partners V(B), L.P. By: American Securities Associates V, LLC, its general partner By: /s/ Michael G. Fisch, Michael G. Fisch, as Managing Member 2017-02-17 American Securities Partners V(C), L.P. By: American Securities Associates V, LLC, its general partner By: /s/ Michael G. Fisch, Michael G. Fisch, as Managing Member 2017-02-17 American Securities Associates V, LLC By: /s/ Michael G. Fisch, Michael G. Fisch, as Managing Member 2017-02-17 American Securities LLC By: /s/ Michael G. Fisch, Michael G. Fisch, as President and Chief Executive Officer 2017-02-17