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ADVANCED DRAINAGE SYSTEMS, INC.

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

View on SEC.gov

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

What changed in Risk Factors?

Read the current filing

Previous report: 10-K

Period ended 2025-03-31; filed 2025-05-15.

0001604028-25-000012

Item 1A. Risk Factors

Current report: 10-K

Period ended 2026-03-31; filed 2026-05-21.

0001604028-26-000019

Item 1A. Risk Factors

The baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.

Compared 107 previous paragraphs and 127 current paragraphs.

90 unchanged; 17 reworded; 20 added; 0 removed; 0 previous and 0 current paragraphs rearranged.

Tables are not compared: 0 previous and 0 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.

A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.

Added paragraphs (20)

Current report

Risks Relating to Our Acquisition of NDS

Current report

We will be required to devote significant management attention and resources to integrating the business practices and operations of NDS with our business. We may be unable to realize the planned synergies from the acquisition or other benefits in the timeframe that we expect or at all. We continue to assess synergies that we may realize as a combined company, the realization of which will depend on a number of factors.

Current report

Additional difficulties we may encounter as part of the integration process include the following:

Current report

•the costs of integration and compliance and the possibility that the full benefits anticipated to result from our acquisition of NDS will not be realized;

Current report

•any delay in the integration of management teams, strategies, operations, products and services;

Current report

•diversion of the attention of each company’s management as a result of our acquisition of NDS;

Current report

•differences in business backgrounds, corporate cultures and management philosophies that may delay successful integration;

Current report

•operating in foreign jurisdictions where we have no prior operating experience, including compliance, workforce and operational challenges;

Current report

•delays in the disposition of the NDS International Entities;

Current report

•the ability to retain key employees;

Current report

•the ability to create and enforce uniform standards, controls, procedures, policies and information systems;

Current report

•the challenge of integrating complex systems, technology, networks and other assets of NDS into those of ours in a seamless manner that minimizes any adverse impact on customers, suppliers, employees and other constituencies;

Current report

•potential unknown liabilities and unforeseen increased expenses or delays associated with the acquisition, including costs to integrate NDS beyond current estimates; or

Current report

Any of these factors could adversely affect each company’s ability to maintain relationships with customers, suppliers, employees and other constituencies or our ability to achieve the anticipated benefits of the acquisition or could reduce each company’s earnings or otherwise adversely affect our business and financial results after the acquisition. These risks are not limited to our acquisition of NDS and could also apply to our future acquisitions.

Current report

Uncertainties associated with our acquisition of NDS may cause a loss of management personnel and other key employees, which could adversely affect our future business, operations and financial results.

Current report

The acquisition of NDS could disrupt our and NDS’ businesses. We are dependent on the experience and industry knowledge of senior management and other key employees to execute our business plans, which could be disrupted by the unanticipated departure of any key member of our management team or employee base, as well as management or key employees of NDS. Our and NDS’ current and prospective employees may experience uncertainty about their roles within our company, which may have an adverse effect on the ability of each of us to attract or retain key management and other key personnel.

Current report

Accordingly, no assurance can be given that we will be able to attract or retain our and NDS’ key management personnel and other key employees to the same extent that our companies have previously been able to attract or retain such employees. In addition, because of the specialized and technical nature of our business, our future performance is dependent on the continued service of, and on our ability to attract and retain, qualified management, engineering, technical, marketing and support personnel. Competition for such personnel is intense, and we may be unable to continue to attract or retain such personnel.

Current report

Our results after our acquisition of NDS may suffer if we do not effectively manage our expanded operations following the acquisition or the business of NDS may underperform relative to our expectations.

Current report

Following our acquisition of NDS, the size and complexity of our business will increase significantly beyond the current size of either our or NDS’ existing business. Our future success depends, in part, upon our ability to manage this expanded business, which will pose substantial challenges for management, including challenges related to the management and monitoring of new operations and new types of manufacturing processes and products and associated increased costs and complexity. There can be no assurances that we will be successful after completion of the acquisition or that we will realize the expected benefits currently anticipated from our acquisition of NDS.

Current report

Additionally, we may not be able to maintain the levels of revenue, earnings or operating efficiency that we and NDS have achieved or might achieve separately. The business and financial performance of NDS is subject to certain risks and uncertainties, including the risk of the loss of, or changes to, its relationships with its customers. We may be unable to achieve the same growth, revenues and profitability that NDS has achieved in the past.
Reworded paragraphs (17)

Previous wording

•Demand for our products and services depend to a significant degree on spending on infrastructure. Infrastructure spending is affected by a variety of factors beyond our control, including interest rates, inflation, availability and commitment of public funds for municipal spending and highway spending and general economic conditions.

Current wording

•Demand for our products and services depends to a significant degree on spending on infrastructure. Infrastructure spending is affected by a variety of factors beyond our control, including interest rates, inflation, availability and commitment of public funds for municipal spending and highway spending and general economic conditions.

Previous wording

Additionally, U.S. policies related to global trade and tariffs could have a material adverse effect on our results of operations. The current administration has suggested various new strategies regarding tariffs. Most recently, the administration imposed “reciprocal taxes”, in which the U.S. matches the import duties levied by other countries and individualized tariffs on goods originating from countries with trade surpluses with the United States. In response, countries have imposed or proposed additional tariffs on certain U.S. imports, as well as additional trade restrictions. Tariffs may create an administrative burden and will cause companies to make difficult decisions as to how to pay the tariffs or absorb the cost into their profit margins.

Current wording

Additionally, U.S. policies related to global trade and tariffs could have a material adverse effect on our results of operations. The current administration has suggested various new strategies regarding tariffs. In response, countries have imposed or proposed additional tariffs on certain U.S. imports, as well as additional trade restrictions. Tariffs may result in a decrease of global trade volumes due to uncertainty, may create an administrative burden and will cause companies to make difficult decisions as to how to pay the tariffs or absorb the cost into their profit margins.

Previous wording

Weakness in the markets in which we operate could have a material adverse effect on our business, financial condition, results of operations and cash flows. Bank failures and market disruptions could impact banks used by our customers, which could negatively affect our customers. Delays in the placement of new orders and extended uncertainties may reduce future sales of our products and services. The revenue growth and profitability of our business depends on the overall demand for our product and services. We may have to close under-performing facilities as warranted by general economic conditions and/or weakness in the markets in which we operate. In addition to a reduction in demand for our products, these factors may also reduce the price we are able to charge for our products and restrict our ability to pass raw material cost increases to our customers. This, combined with an increase in excess capacity, will negatively impact our profitability, cash flows and our financial condition, generally.

Current wording

Weakness in the markets in which we operate could have a material adverse effect on our business, financial condition, results of operations and cash flows. Bank failures and market disruptions could impact banks used by our customers, which could negatively affect our customers. Delays in the placement of new orders and extended uncertainties may reduce future sales of our products and services. The revenue growth and profitability of our business depend on the overall demand for our product and services. We may have to close under-performing facilities as warranted by general economic conditions and/or weakness in the markets in which we operate. In addition to a reduction in demand for our products, these factors may also reduce the price we are able to charge for our products and restrict our ability to pass on raw material cost increases to our customers. This, combined with an increase in excess capacity, will negatively impact our profitability, cash flows and our financial condition, generally.

Previous wording

Many of our products are made from a material whose manufacturing process involves the emission of carbon dioxide, a greenhouse gas (“GHG”) that scientists have attributed as a cause of climate change. Our products require transportation from our facilities to the site where they are used, which consumes energy. Concern over climate change, including the impact of global warming, has led to federal, state, and international efforts to limit GHG emissions. Although it is uncertain what actions various governmental bodies will take to address the effects of climate change and to achieve goals in response to the effects of climate change, including in what timeframe those actions would be implemented, new laws or regulations could directly and indirectly affect our customers and suppliers (through an increase in the cost of production or their ability to produce satisfactory products) and our business (through the impact on our inventory availability, cost of sales, operations or demands for the products we sell). Until the timing, scope and extent of any regulation becomes known, we cannot predict its effect on our cost structure or our operating results, but it is likely our costs will increase in relation to any climate change legislation and regulations concerning GHG, which could have an adverse effect on our future financial position, results of operations or cash flows.

Current wording

Many of our products are made from a material whose manufacturing process involves the emission of carbon dioxide, a greenhouse gas (“GHG”) that scientists have attributed as a cause of climate change. Our products require transportation from our facilities to the site where they are used, which consumes energy. Concerns over climate change, including the impact of global warming, has led to federal, state, and international efforts to limit GHG emissions. Although it is uncertain what actions various governmental bodies will take to address the effects of climate change and to achieve goals in response to the effects of climate change, including in what timeframe those actions would be implemented, new laws or regulations could directly and indirectly affect our customers and suppliers (through an increase in the cost of production or their ability to produce satisfactory products) and our business (through the impact on our inventory availability, cost of sales, operations or demands for the products we sell). Until the timing, scope and extent of any regulation becomes known, we cannot predict its effect on our cost structure or our operating results, but it is likely our costs will increase in relation to any climate change legislation and regulations concerning GHG, which could have an adverse effect on our future financial position, results of operations or cash flows.

Previous wording

Our success will depend, in part, on our ability to maintain the quality of our customer service, and selling and marketing efforts, as well as our ability to develop long-term relationships with our customers. Our ten largest customers generated approximately 47% of our net sales in fiscal 2025. Because we do not have long-term arrangements with many of our customers, such customers may cease purchasing our products without notice or upon short notice to us. In addition, consolidation among customers could also result in a loss of some of our present customers to our competitors. The loss of one or more of our significant customers, a significant customer’s decision to purchase our products in significantly lower quantities than they have in the past, or deterioration in our relationship with any of them could have a material adverse effect on our business, financial condition, results of operations and cash flows.

Current wording

Our success will depend, in part, on our ability to maintain the quality of our customer service, and selling and marketing efforts, as well as our ability to develop long-term relationships with our customers. Our ten largest customers generated approximately 50% of our net sales in fiscal 2026. Because we do not have long-term arrangements with many of our customers, such customers may cease purchasing our products without notice or upon short notice to us. In addition, consolidation among customers could also result in a loss of some of our present customers to our competitors. The loss of one or more of our significant customers, a significant customer’s decision to purchase our products in significantly lower quantities than they have in the past, or deterioration in our relationship with any of them could have a material adverse effect on our business, financial condition, results of operations and cash flows.

Previous wording

Our international operations are subject to risks similar to those affecting our operations in the U.S. in addition to a number of other risks, including: difficulties in enforcing contractual and intellectual property rights; impositions or increases of withholding and other taxes on remittances and other payments by subsidiaries and affiliates; exposure to different or changing legal standards, including potential changes in government mandated regulatory product standards in those countries in which we or our joint ventures operate; fluctuations in currency exchange rates; impositions or increases of investment and other restrictions by foreign governments; the requirements of a wide variety of foreign laws; political and economic instability; war, escalating geopolitical conflicts or acts or threats of terrorism; and difficulties in staffing and managing operations, particularly in remote locations.

Current wording

Our international operations are subject to risks similar to those affecting our operations in the U.S. in addition to a number of other risks, including: difficulties in enforcing contractual and intellectual property rights; impositions or increases of withholding and other taxes on remittances and other payments by subsidiaries and affiliates; difficulties in managing and complying with continually evolving data and privacy laws, such as the European Union’s General Data Protection Regulation and a number of state-specific consumer privacy laws in the U.S.; exposure to different or changing legal standards, including potential changes in government mandated regulatory product standards in those countries in which we or our joint ventures operate; fluctuations in currency exchange rates; impositions or increases of investment and other restrictions by foreign governments; the requirements of a wide variety of foreign laws; political and economic instability; war, escalating geopolitical conflicts or acts or threats of terrorism; and difficulties in staffing and managing operations, particularly in remote locations.

Previous wording

Our financial performance and future growth depend on our management’s ability to successfully implement our initiatives. Our operational initiatives are focused on capacity expansion, automation, safety, order management and transportation. Automation in our plants will allow for production efficiency and improved safety for plant personnel. Any failure to successfully implement these initiatives and related strategies could adversely affect our business, financial condition, and results of operations, including increases in our severance and impairment charges.

Current wording

Our financial performance and future growth depend on our management’s ability to successfully implement our initiatives. Our operational initiatives are focused on customer experience, capacity expansion, automation, safety, order management and transportation. Automation in our plants will allow for production efficiency and improved safety for plant personnel. Any failure to successfully implement these initiatives and related strategies could adversely affect our business, financial condition, and results of operations, including increases in our severance and impairment charges.

Previous wording

We are affected by increased fuel and energy prices, and our inability to obtain sufficient quantities of fuel to operate our in-house delivery fleet.

Current wording

We are affected by increased fuel and energy prices, and our inability to obtain sufficient quantities of fuel to operate our in-house delivery fleet could negatively impact our business, results of operations and cash flows.

Previous wording

Prices and availability of petroleum products are subject to political, economic and market factors that are outside our control. We consume a large amount of energy and petroleum products in our operations, including the manufacturing process and delivering products to our customers by our in-house fleet. While we utilize a diesel hedging program associated with our in-house fleet to mitigate against higher fuel prices, our operating profit will be adversely affected if we are unable to obtain the energy and fuel we require or to fully offset the anticipated impact of higher energy and fuel prices through increased prices or surcharges to our customers or through other hedging strategies. If shortages occur in the supply of energy or necessary petroleum products and we are not able to pass along the full impact of increased energy or petroleum prices to our customers, our business, financial condition, results of operations and cash flows would be adversely affected.

Current wording

Prices and availability of petroleum products are subject to political, economic and market factors that are outside our control. We consume a large amount of energy and petroleum products in our operations, including the manufacturing process and delivering products to our customers by our in-house fleet. The recent conflict in the Middle East has led to an increase in oil prices in the U.S. Oil prices may continue to surge if the conflict continues, other geopolitical conflicts arise or continue, certain oil supply routes remain blocked or additional supply routes become blocked. While we utilize a diesel hedging program associated with our in-house fleet to mitigate against higher fuel prices, our operating profit will be adversely affected if we are unable to obtain the energy and fuel we require or to fully offset the anticipated impact of higher energy and fuel prices through increased prices or surcharges to our customers or through other hedging strategies. If shortages occur in the supply of energy or necessary petroleum products and we are not able to pass along the full impact of increased energy or petroleum prices to our customers, our business, financial condition, results of operations and cash flows would be adversely affected.

Previous wording

We have made, and will continue to make, significant investments in technology. Our technology initiatives are designed to provide our customers a better order management and fulfillment experience, streamline our manufacturing operations and improve the quality of our internal control environment. The cost and potential problems and interruptions associated with the implementation of our technology initiatives could disrupt or reduce the efficiency of our operations in the near term. In addition, our new or upgraded technology might not provide the anticipated benefits, take longer than expected to realize the anticipated benefits or might fail altogether. The occurrence of such issues could have a material adverse effect on our business financial condition and results of operations.

Current wording

We have made, and will continue to make, significant investments in technology. Our technology initiatives are designed to provide our customers a better order management and fulfillment experience, streamline our manufacturing operations and improve the quality of our internal control environment. The cost and potential problems and interruptions associated with the implementation of our technology initiatives could disrupt or reduce the efficiency of our operations in the near term. In addition, our new or upgraded technology might not provide the anticipated benefits, might take longer than expected to realize the anticipated benefits or might fail altogether. The occurrence of such issues could have a material adverse effect on our business financial condition and results of operations.

Previous wording

All of these risks are also applicable where we rely on outside vendors to provide services. We are dependent on third-party vendors to operate secure and reliable systems which may include data transfers over the internet. Any events which deny us use of vital operating or information systems may seriously disrupt our normal business operations. Additionally, our key partners, distributors or suppliers could experience a compromise of their information security due to a cybersecurity incident, which may have an impact on our business, reputation and financial performance.

Current wording

All of these risks are also applicable when we rely on outside vendors to provide services. We are dependent on third-party vendors to operate secure and reliable systems which may include data transfers over the internet. Any events which deny us use of vital operating or information systems may seriously disrupt our normal business operations. Additionally, our key partners, distributors or suppliers could experience a compromise of their information security due to a cybersecurity incident, which may have an impact on our business, reputation and financial performance.

Previous wording

We may be unable to successfully integrate businesses to realize the anticipated benefits of acquisitions or do so within the intended timeframe.

Current wording

We may be unable to successfully integrate our and NDS’ businesses in order to realize the anticipated benefits of the acquisition or do so within the intended timeframe.

Previous wording

We have completed and may complete additional acquisitions in the future. The success of any acquisition, including anticipated synergies, benefits and cost savings, will depend, in part, on our ability to successfully combine and integrate our current operations with the acquisition. If we experience difficulties with the integration process or other unforeseen costs, the anticipated benefits and cost savings of the acquisition may not be realized fully or may take longer to realize than expected. The integration planning and implementation process will result in significant costs and divert management attention and resources. These integration matters could have an adverse effect on our combined company for an undetermined period after completion of the acquisition. In addition, the actual cost savings of the acquisition could be less than anticipated, or otherwise offset by other factors.

Current wording

The success of the acquisition, including anticipated synergies, benefits and cost savings, will depend, in part, on our ability to successfully combine and integrate our current operations with NDS’ business. If we experience difficulties with the integration process or other unforeseen costs, the anticipated benefits and cost savings of the acquisition may not be realized fully or at all or may take longer to realize than expected. The integration planning and implementation process will result in significant costs and divert management attention and resources. These integration matters could have an adverse effect on our combined company for an undetermined period after completion of the acquisition. In addition, the actual cost savings of the acquisition could be less than anticipated or otherwise offset by other factors.

Previous wording

Sales of substantial amounts of our common stock in the public market, or the perception that these sales could occur, could cause the market price of our common stock to decline. Based on shares outstanding as of May 8, 2025, we have 77.6 million outstanding shares of common stock, including 0.2 million outstanding shares of our restricted stock, a significant portion of which are freely tradable without restriction under the Securities Act of 1933, as amended, (“Securities Act”) unless held by “affiliates,” as that term is defined in Rule 144 under the Securities Act. As of March 31,

Current wording

Sales of substantial amounts of our common stock in the public market, or the perception that these sales could occur, could cause the market price of our common stock to decline. Based on shares outstanding as of May 14, 2026, we have 76.6 million outstanding shares of common stock, including 0.2 million outstanding shares of our restricted stock, a significant portion of which are freely tradable without restriction under the Securities Act of 1933, as amended, (“Securities Act”) unless held by “affiliates,” as that term is defined in Rule 144 under the Securities Act. As of March 31,

Previous wording

2025, there were stock options outstanding to purchase a total of approximately 0.9 million shares of our common stock. In addition, approximately 1.8 million shares of common stock are available for grant under our 2017 Omnibus Plan.

Current wording

2026, there were stock options outstanding to purchase a total of approximately 0.9 million shares of our common stock. In addition, approximately 1.5 million shares of common stock are available for grant under our 2017 Omnibus Plan.

Previous wording

As of May 8, 2025, our directors, officers and principal stockholders and their affiliates collectively own, or have the right to own within 60 days, approximately 20% of our outstanding shares of common stock. Additionally, our tax-qualified Retirement and Stock Ownership Plan (“KSOP”) holds shares of common stock that KSOP participants with ESOP accounts are entitled to vote on a one-for-one basis on any matter requiring the vote or consent of our stockholders. Thus, the collective voting power of our directors, officers and principal stockholders and their affiliates as of May 8, 2025 is approximately 27%, inclusive of the outstanding shares of common stock held by the KSOP. As a result, these stockholders, if they act together, may be able to control our management and affairs and most matters requiring stockholder approval, including the election of directors and approval of significant corporate transactions. This concentration of ownership may have the effect of delaying or preventing a change of control and might adversely affect the market price of our common stock. This concentration of ownership may not be in the best interests of our other stockholders.

Current wording

As of May 14, 2026, our directors, officers and principal stockholders and their affiliates collectively own, or have the right to own within 60 days, approx imately 16% of our outstanding shares of common stock. Additionally, our tax-qualified Retirement and Stock Ownership Plan (“KSOP”) holds shares of common stock that KSOP participants with ESOP accounts are entitled to vote on a one-for-one basis on any matter requiring the vote or consent of our stockholders. Thus, the collective voting power of our directors, officers and principal stockholders and their affiliates as of May 14, 2026 is approximately 22%, inclusive ofthe outstanding shares of common stock held by the KSOP. As a result, these stockholders, if they act together, may be able to control our management and affairs and most matters requiring stockholder approval, including the election of directors and approval of significant corporate transactions. This concentration of ownership may have the effect of delaying or preventing a change of control and might adversely affect the market price of our common stock. This concentration of ownership may not be in the best interests of our other stockholders.

Previous wording

•fluctuations in our effective tax rate, including from the Inflation Reduction Act of 2022, Tax Cuts and Jobs Act of 2017, the Coronavirus Aid, Relief, and Economic Security Act and any future tax legislation;

Current wording

•fluctuations in our effective tax rate, including from the OBBBA signed July 4, 2025, Inflation Reduction Act of 2022, Tax Cuts and Jobs Act of 2017, the Coronavirus Aid, Relief, and Economic Security Act and any future tax legislation;