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ADVANCED DRAINAGE SYSTEMS, INC.

For the period ended Mar 31, 2026. Filed May 21, 2026.

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About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2026 · Filed May 21, 2026

WMS$131.01+5.4%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

Item 16. Form 10-K Summary

None.

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Date: May 21, 2026

ADVANCED DRAINAGE SYSTEMS, INC.
By:/s/ D. Scott Barbour
Name:D. Scott Barbour
Title:President and Chief Executive Officer (Principal Executive Officer)

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons in their indicated capacities, on May 21, 2026.

SignatureTitle
/s/ D. Scott BarbourDirector, President and Chief Executive Officer(Principal Executive Officer)
D. Scott Barbour
/s/ Scott A. CottrillExecutive Vice President, Chief Financial Officer and Secretary (Principal Financial Officer)
Scott A. Cottrill
/s/ Tim A. MakowskiSenior Vice President, Chief Accounting Officer (Principal Accounting Officer)
Tim A. Makowski
/s/ Robert M. Eversole**Chairman of the Board of Directors and Director
Robert M. Eversole
/s/ Anesa T. Chaibi **Director
Anesa T. Chaibi
/s/ Michael B. Coleman **Director
Michael B. Coleman
/s/ Alexander R. Fischer**Director
Alexander R. Fischer
/s/ Tanya Fratto**Director
Tanya Fratto
/s/ Kelly S. Gast**Director
Kelly S. Gast
/s/ M.A. (Mark) Haney**Director
M.A. (Mark) Haney
/s/ Luther C. Kissam IV**Director
Luther C. Kissam IV
/s/ Manuel J. Perez de la Mesa**Director
Manuel J. Perez de la Mesa
/s/ Anil Seetharam**Director
Anil Seetharam
** The undersigned, by signing his name hereto, does hereby sign this report on behalf of each of the above-indicated directors of the registrant pursuant to powers of attorney executed by such directors.
By:/s/ Scott A. Cottrill
Scott A. Cottrill, Attorney-in-fact

TABLE OF CONTENTS

Page
Audited Consolidated Financial Statements
Reports of Independent Registered Public Accounting FirmF-1
Consolidated Balance Sheets as of March 31, 2026 and 2025F-4
Consolidated Statements of Operations for the fiscal years ended March 31, 2026, 2025 and 2024F-5
Consolidated Statements of Comprehensive Income (Loss) for the fiscal years ended March 31, 2026, 2025 and 2024F-6
Consolidated Statements of Cash Flows for the fiscal years ended March 31, 2026, 2025 and 2024F-7
Consolidated Statements of Stockholders’ Equity and Mezzanine Equity for the fiscal years ended March 31, 2026, 2025 and 2024F-8
Notes to Consolidated Financial StatementsF-10
Schedule II, Consolidated Valuation and Qualifying Accounts for the fiscal years ended March 31, 2026, 2025 and 2024F-43
ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.