UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

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☐	Preliminary Proxy Statement
☐	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☐	Definitive Proxy Statement
☒	Definitive Additional Materials
☐	Soliciting Material Pursuant to §240.14a-12

ADVANCED DRAINAGE SYSTEMS, INC.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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*** Exercise Your Right to Vote ***

Important Notice Regarding the Availability of Proxy Materials for the

Stockholder Meeting to Be Held on July 24, 2018.

		Meeting Information
ADVANCED DRAINAGE SYSTEMS, INC./WMS		Meeting Type:	Annual Meeting
		For holders as of:	May 31, 2018
		Date:  July 24, 2018	Time: 10:00 AM Eastern Time
	ADVANCED DRAINAGE SYSTEMS, INC./WMS   4640 TRUEMAN BLVD.   HILLIARD, OH 43026	Location:  Meeting live via the Internet-please visit
		www.virtualshareholdermeeting.com/WMS2018.
		The company will be hosting the meeting live via the Internet this year. To attend the meeting via the Internet please visit www.virtualshareholdermeeting.com/WMS2018 and be sure to have the information that is printed in the box marked by the arrow (located on the following page).
		You are receiving this communication because you hold shares in the company named above or you are a participant in the Advanced Drainage Systems, Inc. Employee Stock Ownership Plan.
		This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).
		We encourage you to access and review all of the important information contained in the proxy materials before voting.
		See the reverse side of this notice to obtain proxy materials and voting instructions.

Before You Vote  

How to Access the Proxy Materials

  Proxy Materials Available to VIEW or RECEIVE:

  NOTICE AND PROXY STATEMENT    10-K WRAP

  How to View Online:

  Have the information that is printed in the box marked by the arrow (located on the following

  page)   and visit: www.proxyvote.com.

  How to Request and Receive a PAPER or E-MAIL Copy:

  If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a   copy. Please choose one of the following methods to make your request:

                                 1) BY INTERNET:         www.proxyvote.com

                                 2) BY TELEPHONE:     1-800-579-1639

                                 3) BY E-MAIL*:             sendmaterial@proxyvote.com

  *  If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the   arrow (located on the following page) in the subject line.

  Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor.

  Please make the request as instructed above on or before July 10, 2018 to facilitate timely delivery.

How To Vote  

Please Choose One of the Following Voting Methods

        Vote By Internet:         Before The Meeting: Go to www.proxyvote.com. Have the information that is printed in the box marked by the arrow (located on the following page) available and follow the instructions.         During The Meeting:   Go to www.virtualshareholdermeeting.com/WMS2018. Have the information that is printed in the box marked by
the arrow (located on the following page) available and follow the instructions.     Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.  

Voting Items

The Board of Directors recommends you vote

FOR all of the nominees listed and FOR proposals

2 and 3.

1.  Election of Directors

     1a.  Robert M. Eversole

     1b.  Alexander R. Fischer

     1c.  M.A. (Mark) Haney

2.   Ratification of the appointment of Deloitte & Touche LLP as the Company’s Independent Registered

        Public Accounting Firm for fiscal year 2019.

3.   Approval, in a non-binding advisory vote, of the compensation for named executive officers.

NOTE: Such other business as may properly come before the meeting or any adjournment thereof.