# EDGAR Filing Document

**Accession Number:** 0001604028
**File Stem:** 0001604028-26-000002
**Filing Date:** 2026-2
**Character Count:** 13428
**Document Hash:** 2608e4633c85b06cb0fe30698c252d74
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001604028-26-000002.hdr.sgml**: 20260202

**ACCESSION NUMBER**: 0001604028-26-000002

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 15

**CONFORMED PERIOD OF REPORT**: 20260202

**ITEM INFORMATION**: Completion of Acquisition or Disposition of Assets

**ITEM INFORMATION**: Regulation FD Disclosure

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20260202

**DATE AS OF CHANGE**: 20260202

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ADVANCED DRAINAGE SYSTEMS, INC.
- **CENTRAL INDEX KEY:** 0001604028
- **STANDARD INDUSTRIAL CLASSIFICATION:** PLASTICS FOAM PRODUCTS [3086]
- **ORGANIZATION NAME:** 08 Industrial Applications and Services
- **EIN:** 510105665
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0331

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-36557
- **FILM NUMBER:** 26586157

**BUSINESS ADDRESS:**
- **STREET 1:** 4024 GREEN STRIPE LANE
- **CITY:** HILLIARD
- **STATE:** OH
- **BUSINESS PHONE:** 800-733-7473

**MAIL ADDRESS:**
- **STREET 1:** 4024 GREEN STRIPE LANE
- **CITY:** HILLIARD
- **STATE:** OH

?xml version='1.0' encoding='ASCII'? wms-20260202

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**WASHINGTON, D.C. 20549**

**FORM 8-K**

**CURRENT REPORT**

**Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934**

**Date of Report (Date of earliest event reported): February 2, 2026**

**ADVANCED DRAINAGE SYSTEMS, INC.**

**(Exact name of Registrant as Specified in Its Charter)**

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| | | | |
|:---|:---|:---|:---|
| **Delaware** | **Delaware** | **001-36557** | **51-0105665** |
| **(State or Other Jurisdiction**<br>**of Incorporation)** | **(State or Other Jurisdiction**<br>**of Incorporation)** | **(Commission File Number)** | **(IRS Employer**<br>**Identification No.)** |
| **4024 Green Stripe Lane** | **4024 Green Stripe Lane** |  | **43026** |
| **Hilliard,** | **Ohio** |  | **43026** |
| **(Address of Principal Executive Offices)** | **(Address of Principal Executive Offices)** |  | **(Zip Code)** |

---

**Registrant's Telephone Number, Including Area Code: (800) 733-7473**

**4640 Trueman Boulevard, Hilliard, Ohio 43026**

**(Former Name or Former Address, if Changed Since Last Report)**

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instructions A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

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| | | |
|:---|:---|:---|
| **Title of each class** | **Trading**<br>**Symbol(s)** | **Name of each exchange on which registered** |
| Common Stock, $0.01 par value per share | WMS | New York Stock Exchange |

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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**Item 2.01&nbsp;&nbsp;&nbsp;&nbsp;Completion of Acquisition or Disposition of Assets** 

On February 2, 2026, Advanced Drainage Systems, Inc. (the "Company") completed its previously announced acquisition of the outstanding capital stock of certain indirect subsidiaries of NORMA Group SE ("Norma Group"), a European company (*Societas Europaea*) incorporated under the laws of Germany, which comprise substantially all of Norma Group's water management business known as National Diversified Sales ("NDS"), subject to the terms and conditions set forth in the Master Share Purchase Agreement dated September 23, 2025 (the "Purchase Agreement") between the Company and Norma Group. The acquisition was an all cash transaction for consideration of approximately $1.0 billion, subject to certain purchase price adjustments.

The foregoing description of the Purchase Agreement does not purport to be complete, and is qualified in its entirety by reference to the full text of the Purchase Agreement, a copy of which was filed as Exhibit 2.1 to the Company's Current Report on Form 8-K filed with the SEC on September 23, 2025.

**Item 7.01&nbsp;&nbsp;&nbsp;&nbsp;Regulation FD Disclosure** 

On February 2, 2026, the Company issued a press release announcing the completion of the acquisition of NDS, as described in Item 2.01. A copy of the Company's press release is attached hereto as Exhibit 99.1 and hereby incorporated by reference.

The information furnished pursuant to this Item 7.01, including Exhibit 99.1, shall not be deemed "filed" for purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities under Section 18 of the Exchange Act and shall not be deemed to be incorporated by reference into any filing of the Company under the Securities Act of 1933 or the Exchange Act.

**Item 9.01&nbsp;&nbsp;&nbsp;&nbsp;Financial Statements and Exhibits.**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**(d)Exhibits**

The following exhibits are being furnished as part of this report:

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| | |
|:---|:---|
| 99.1 | <u>[Press Release of Advanced Drainage Systems, Inc. dated February 2, 2026](wms-02022026x8kex991.htm)</u> |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document) |

---

**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

---

| | | |
|:---|:---|:---|
| | ADVANCED DRAINAGE SYSTEMS, INC. | ADVANCED DRAINAGE SYSTEMS, INC. |
| Date: February 2, 2026 | By: | /s/ Scott A. Cottrill |
|  | Name: | Scott A. Cottrill |
|  | Title: | EVP, CFO & Secretary |

---

## Exhibit 99.1

Exhibit 99.1

![adslogoa.jpg](adslogoa.jpg)

**ADVANCED DRAINAGE SYSTEMS CLOSES ACQUISITION OF NATIONAL DIVERSIFIED SALES, A SUBSIDIARY OF NORMA GROUP SE** 

HILLIARD, Ohio – (February 2, 2026) – Advanced Drainage Systems, Inc. (NYSE: WMS) ("ADS" or the "Company"), a leading provider of innovative water management solutions in the stormwater and onsite wastewater industries today announced that it has completed the previously disclosed acquisition of the water management business of Norma Group SE (DAX: NOEJ), known as National Diversified Sales ("NDS").

This transaction expands ADS' water management offering into complementary segments through the addition of NDS' residential water management, access box, and irrigation solutions. The integration of NDS solidifies ADS' position as an end-to-end water solutions provider while advancing its core growth strategy by strengthening the Allied Products portfolio, expanding distribution, and increasing customer reach.

"We are excited to officially close this transaction and welcome NDS to the ADS family," said Scott Barbour, Chief Executive Officer and President of ADS. "This transaction builds on the progress we have made transforming ADS into a more diversified, higher-margin business with a strengthened set of solutions we bring to customers across the water value chain. With our disciplined approach to integration and capital allocation, we believe this combination positions us well to create long-term value and advance our strategy in attractive, growing end markets."

**<u>Advisors</u>**

Centerview Partners LLC and Jefferies LLC acted as financial advisors and Davis Polk & Wardwell LLP, Squire Patton Boggs (U.S.) LLP and Hengeler Mueller acted as legal advisors to the Company.

**<u>About the Company</u>**

Advanced Drainage Systems is a leading manufacturer of innovative stormwater and onsite wastewater solutions that manage the world's most precious resource: water. ADS, along with NDS and Infiltrator Water Technologies, provides superior stormwater drainage and onsite wastewater products used across commercial, residential, infrastructure, and agricultural applications, while delivering unparalleled customer service. ADS operates the industry's largest company-owned fleet, an expansive sales team and a vast manufacturing network. As one of the largest plastic recycling companies in North America, ADS keeps millions of pounds of plastic out of landfills each year. Founded in 1966, ADS' water management solutions are designed to last for decades. To learn more, visit the Company's website at www.adspipe.com.

Certain statements in this press release may be deemed to be forward-looking statements. These statements are not historical facts but rather are based on the Company's current expectations, estimates and projections regarding the Company's business, operations and other factors relating thereto. Words such as "may," "will," "could," "would," "should," "anticipate," "predict," "potential," "continue," "expects," "intends," "plans," "projects," "believes," "estimates," "confident" and similar expressions are used to identify these forward-looking statements. Factors that could cause actual results to differ from those reflected in forward-looking statements relating to our operations and business include: fluctuations in the price and availability of resins and other raw materials, new tariff and international trade policies, and our ability to pass any increased costs of raw materials and tariffs on to our customers; disruption or volatility in general business, political and economic conditions in the markets in which we operate; cyclicality and seasonality of the non-residential and residential construction markets and infrastructure spending; the risks of increasing competition in our existing and future markets; uncertainties surrounding the integration and realization of anticipated benefits of acquisitions or doing so within the intended timeframe, including our ability to successfully integrate NDS into our business; risks that the acquisition of NDS may involve unexpected costs, liabilities, risks that the cost savings and synergies from the acquisition of NDS may not be fully realized; the effect of any claims, litigation, investigations or proceedings; the effect of weather or seasonality; the loss of any of our significant customers; the risks of doing business internationally; the risks of conducting a portion of our operations through joint ventures; our ability to expand into new geographic or product markets; the risk associated with manufacturing processes; the effects of global climate change and any related regulatory responses; our ability to protect against cybersecurity incidents and disruptions or failures of our IT systems; our ability to assess and monitor the effects of artificial intelligence, machine learning, robotics and blockchain or other new approaches to data mining on our business and operations; our ability to manage our supply purchasing and customer credit policies; our ability to control labor costs and to attract, train and retain highly qualified employees and key personnel; our ability to protect our intellectual property rights; changes in laws and regulations, including environmental laws and regulations; our ability to appropriately address any environmental, social or governance concerns that may arise from our activities; the risks associated with our current levels of indebtedness, including borrowings under our existing credit agreement and outstanding indebtedness under our existing senior notes; and other risks and uncertainties described in the Company's filings with the SEC. New risks and uncertainties

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Exhibit 99.1

emerge from time to time and it is not possible for the Company to predict all risks and uncertainties that could have an impact on the forward-looking statements contained in this press release. In light of the significant uncertainties inherent in the forward-looking information included herein, the inclusion of such information should not be regarded as a representation by the Company or any other person that the Company's expectations, objectives or plans will be achieved in the timeframe anticipated or at all. Investors are cautioned not to place undue reliance on the Company's forward-looking statements and the Company undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

The use of the term "segment" in this press release is used in a commercial context and is not intended to represent a reportable segment under ASC Topic 280. The presentation of NDS' financial information under ASC Topic 280 has yet to be determined.

**For more information, please contact:**

Michael Higgins

VP, Corporate Strategy & Investor Relations

(614) 658-0050

Michael.Higgins@adspipe.com

<br>