PERRIGO Co plc (PRGO) Risk Factors

ITEM 1A.    RISK FACTORS

SUMMARY OF RISK FACTORS

Operational Risks

•We face competition from other consumer packaged goods and pharmaceutical companies, which may threaten the demand for and pricing of our products.

•If we do not continue to develop, manufacture, and market innovative products, introduce new line extensions, and expand into adjacent categories that meet customer demands, our net sales may be negatively impacted and we may lose market share.

•We operate in highly regulated industries, and any inability to timely meet current or future regulatory requirements could have a material adverse effect on our business and operating results.

•Limitations on reimbursement, continuing healthcare reforms, and changes to reimbursement methods in the United States and other countries may have an adverse effect on our financial condition and operating results.

•Unfavorable publicity or consumer perception of the safety, quality, and efficacy of our products could have a material adverse effect on our business.

•Lack of availability, or significant increases in the cost, of raw materials used in manufacturing our products could have a material adverse effect on our profit margins and operating results.

•Disruption of our supply chain, including as a result of pandemics, global health crises, wars or other civil unrest, including war in Ukraine, or in the Middle East, could have a material adverse effect on our businesses, financial condition, results of operations and cash flows.

•A disruption at any of our main manufacturing facilities could have a material adverse effect on our business, financial position, and results of operations.

•Our business could be negatively affected by the performance of our collaboration partners and suppliers, and any such adverse impact could be material.

•Our business depends upon certain customers for a significant portion of our sales, therefore our business would be adversely affected by a disruption of our relationship with these customers or any material adverse change in these customers' businesses.

•Our businesses could be adversely affected by deteriorating economic conditions in the countries in which we operate, shifts in the retail landscape, and changes in consumer behavior, and our results may be volatile due to these or other circumstances beyond our control.

•Our ability to achieve operating results in line with published guidance is inherently subject to significant uncertainties, and related stock-price volatility may heighten our susceptibility to investor lawsuits and activist shareholder activity.

•Our exposure to cybersecurity threats and third‑party information system vulnerabilities could result in a material adverse effect on our business.

•Our inability to timely and responsibly leverage emerging technologies, including generative artificial intelligence, could result in a material adverse effect on our business, and the use of emerging technologies generally could result in regulatory action, legal liability, operational challenges or reputational harm.

•We are subject to data privacy laws and regulations and our failure in compliance could result in a material adverse effect on our business.

•Management transition and our ability to attract and retain key personnel create uncertainties, which may negatively impact our business.

Strategic Risks

•We may not realize the benefits of business acquisitions, divestitures, and other strategic transactions, which could have a material adverse effect on our operating results.

•We have acquired significant assets that could become impaired or subject us to losses and may result in an adverse impact on our results of operations, which could be material.

•There can be no assurance that our business strategy and related strategic initiatives, including restructurings, will be executed effectively or achieve their intended effects.

•Failure to effectively monitor our strategies, initiatives and risks related to environmental, social, sustainability and governance matters, as well as any actual or perceived inability to satisfy the evolving and diverging requirements and expectations of our investors, customers, regulators, employees, suppliers and other stakeholders with respect to such matters may negatively affect our business and operations.

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Risk Factors

•If we are unable to maintain effective internal control over financial reporting, investors could lose confidence in the accuracy and completeness of our financial reports and the market price of shares could be adversely affected.

Global Risks

•Our business, financial condition, and results of operations are subject to risks arising from the international scope of our operations.

•We operate in jurisdictions that could be affected by economic and geopolitical instability, which could have a material adverse effect on our business.

•The international scope of our business exposes us to risks associated with foreign exchange rates.

Litigation and Insurance Risks

•We are and may become involved in lawsuits and may experience unfavorable outcomes of such proceedings.

•Increased scrutiny on pricing practices and competition, including antitrust enforcement activity by government agencies and class action litigation, may have an adverse impact on our business and operating results, which could be material.

•Third-party patents and other intellectual property rights may limit our ability to bring new products to market and may subject us to potential legal liability, which could have a material adverse effect on our business and operating results.

•The success of certain of our products depends on the effectiveness of measures we take to protect our intellectual property rights and patents.

•Significant increases in the cost or decreases in the availability of the insurance we maintain could adversely impact our operating results and financial condition. Disputes with insurers on the scope of existing policies may limit the coverage available under such policies.

Tax Related Risks

•The resolution of uncertain tax positions, including any ongoing disputes with U.S. and foreign tax authorities, could be unfavorable, which could have a material adverse effect on our business.

•Changes to tax laws and regulations or the interpretation thereof could have a material adverse effect on our results of operations and the ability to utilize cash in a tax efficient manner.

•Our effective tax rate or cash tax payment requirements may change in the future, which could adversely impact our future results of operations.

Capital and Liquidity Risks

•Our indebtedness could adversely affect our ability to invest in our business and implement our strategic initiatives.

•We cannot guarantee that we will buy back our ordinary shares pursuant to our announced share repurchase plan or that our share repurchase plan will enhance long-term shareholder value.

•Any additional shares we may issue could dilute your ownership in the Company.

•We are incorporated in Ireland; Irish law differs from the laws in effect in the United States and may afford less protection to, or otherwise adversely affect, our shareholders.

•We may be limited in our ability to pay dividends in the future.

Operational Risks

We face competition from other consumer packaged goods and pharmaceutical companies, which may threaten the demand for and pricing of our products.

Our Perrigo-branded products compete against store brand, generic, and branded health and wellness products. In addition, our products sold under labels of others (store brand) compete against other store brands, generic, and branded health and wellness products. If we or our store brand customers are unable to compete successfully, our business may lose customers or face negative pricing pressures. In particular:

•Our CSCA and CSCI businesses experience direct competition from other companies, including brand name companies, that may try to prevent, discourage or delay the use of our products through various

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Risk Factors

measures, including introduction of new products, legislative initiatives, changing dosage forms or dosing regimens, regulatory processes, filing new patents or patent extensions, lawsuits, citizens’ petitions, and attempts to generate negative publicity prior to our introduction of a new competitive product. Moreover, other companies may produce the same products as us, sometimes sold at dramatically lower margins in order to gain market share. Other companies may also introduce new products or delivery techniques that make our current products less desirable.

•Our competitors may be able to adapt more quickly to changes in customer requirements or develop products comparable or superior to those offered by us at more competitive prices.

•Competition in the markets in which we operate may also be impacted by changes in regulations and government pricing programs that may give certain competitors an advantage.

If we do not continue to develop, manufacture, and market innovative products, introduce new line extensions, and expand into adjacent categories that meet customer demands, our net sales may be negatively impacted and we may lose market share.

The growth of our business is due in large part to our ability to develop, manufacture, and market products that meet customer requirements for quality, safety, efficacy, and cost-effectiveness. Margins for existing products tend to decline over time due to aging product life cycles, changes in consumer preferences, pricing pressure from customers, and increased competition. Accordingly, our business model relies heavily on the continuous introduction of innovative products and new product categories. If we do not continue to develop, manufacture, and market new products, or if we fail to stay current with the latest manufacturing information, and packaging technology, we could lose market share, and our net sales may be negatively affected.

The development and commercialization process, particularly with respect to innovative products, is both time consuming and costly, and subject to a high degree of business risk. Products currently under development may require re-design to meet evolving regulatory standards, may not perform as expected, may not pass required bioequivalence studies, or may be the subject of intellectual property challenges. Necessary regulatory approvals may not be obtained in a timely manner, if at all. Even if we are successful in developing a product, our customers' failure to launch one of our products successfully, or delays in manufacturing developed products, could adversely affect our operating results. In addition, regulatory agencies may impose higher standards or additional requirements, as a condition to clearing new products, such as requiring more supporting data and clinical data than previously required, which could negatively impact our net sales. In our CSCA business, we must prove that the regulated generic drug products are bioequivalent to their branded counterparts, which may require bioequivalence studies, and, in the case of topical products, even more extensive clinical endpoint trials to demonstrate their efficacy, and the failure to do so could negatively impact our sales.

We operate in highly regulated industries, and any inability to timely meet current or future regulatory requirements could have a material adverse effect on our business and operating results.

We operate in highly regulated industries in numerous countries and are subject to the regulations of a variety of U.S. and non-U.S. agencies related to the manufacturing, processing, formulation, packaging, labeling, testing, storing, distribution, import, export, advertising, and sale (including cost, pricing and reimbursement) of our products, as described in detail in Item 1. Business - Government Regulation and Pricing. Changes in laws, regulations, and practices in the countries in which we operate, including changes in interpretation of existing regulations (which may have retroactive effect) and actual or possible government shutdowns, may be difficult or expensive for us to comply with, could restrict or delay our ability to manufacture, distribute, sell or market our products, and may adversely affect our revenue, operating results, and financial condition or impose significant administrative burdens. Moreover, changes in the interpretation of existing regulations or practices by such regulators could result in changes in the legal requirements affecting us (including with retroactive effect). Divergence in regulatory approach from country to country, and between the EU and individual member states, adds cost and complexity to the compliance framework; and differences in requirements and/or implementation dates in different jurisdictions may provide competitive advantages to manufacturers that operate in other locations. If our products fail to meet regulatory requirements, our sales may be adversely affected, we may incur fines and penalties, and our exposure to liability relating to product-based claims may increase. Below are some examples of ways in which regulatory risk may impact us:

•On July 14, 2021, the European Commission adopted a set of proposals to ensure polices are aligned with the goal of reducing net greenhouse gas emissions by at least 55% by 2030 in comparison to 1990 (the "EU Green Deal"). As required under the Climate Law, the Commission also recommended, in February 2024, an additional intermediate target of 90% less emissions by 2040. There is a growing focus on environmental impact of self-care products, their ingredients, components, packaging, manufacturing, and disposal. This focus could lead to new requirements and restrictions in the coming years across all product categories.

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Risk Factors

•U.S. law encourages generic competition by providing eligibility for first generic marketing exclusivity if certain conditions are met. If we are granted generic exclusivity, the exclusivity may be shared with other companies; or we may forfeit 180-day exclusivity if we fail to obtain regulatory approval and begin marketing within the statutory requirements. If we are not the first to file our ANDA, the FDA may grant 180-day exclusivity to another company, thereby effectively delaying the launch of our product and/or possibly reducing our market share.

•U.S. and global regulatory agencies regularly inspect our manufacturing facilities and the facilities of our third-party suppliers for good manufacturing practices ("GMP") and other regulatory compliance. The failure of one of these facilities to comply with applicable laws and regulations may lead to a breach of representations made to our customers, or to regulatory or government action against us related to the facility or the products made in that facility, including suspension of or delay in regulatory approvals and product seizure, injunction, recall, suspension of production or distribution of our products, a total or partial shutdown of production in one or more facilities, remedial measures, loss of licenses or other governmental penalties, or civil or criminal prosecution, which could result in increased cost, lost revenue, or reputational damage.

•Regulatory agencies globally, including the FDA and the European Medicines Agency, have issued guidance on assessing and controlling nitrosamine impurities in medicine products. Global regulators have stated that the nitrosamine impurity topic is evolving. We are continuing to be actively engaged with the regulatory-based forums and associations to partner with, proactively contribute to, and respond accordingly to scientific advancements around nitrosamine impurities. As such, we continue to perform thorough risk assessments as outlined by guidance and initiating mitigation and control measures for any finding of nitrosamine impurities exceeding levels set by regulatory authorities. These control measures may include modifying the product formulation and/or conducting additional product testing. If such measures are not successful, product withdrawal may be required.

•Rx-to-OTC switches are part of our future growth. If regulatory agencies fail to approve Rx-to-OTC switches in new product categories or reassess the terms of existing OTC classifications, our growth prospects and product mix would be impaired. Further, regulatory agencies may reassess the terms of OTC classification if they perceive a shift in the previously assessed benefit/risk profile. Any such reassessment could lead to OTC products reverting to prescription. For example, Irish regulators are undertaking a formal review of non-prescription codeine products, which could result in the reclassification of codeine to prescription only after a brief transition period. A final opinion is expected in 2026. Sales of products containing OTC codeine in Ireland were approximately $24 million in 2025. Moreover, a reclassification by Ireland could lead to reviews in other jurisdictions as well.

•Our infant formula products may be subject to barriers or sanctions that limit international trade or dictate product composition. As governments impose new or more stringent regulations on the infant formula industry such as requiring additional testing, or compulsory batch-by-batch inspection, or revised manufacturing practice standards, our sales and operating margins in this category have been and could in the future be adversely affected as it is costly to comply with such new regulations or requirements, and to develop compliant products and processes for our infant formula products. For example, in March 2023, the FDA released its "Immediate National Strategy to Increase the Resiliency of the U.S. Infant Formula Market" and issued a letter to the powdered infant formula industry to share information to assist the industry in improving the microbiologic safety of powdered infant formula and resiliency of the infant formula market. In response to the FDA's evolving regulatory expectations on infant formula and observations at our facilities, we shortened our production campaigns to perform more frequent major cleanings, implemented enhanced product testing and quality procedures, adopted new manufacturing protocols, and made additional infrastructure investments. These measures have increased costs and reduced production volumes, and we expect higher compliance costs to continue. In March 2025, the U.S. Department of Health and Human Services (HHS) launched Operation Stork Speed, a regulatory initiative aimed at strengthening the safety, quality, transparency, and resilience of the U.S. infant formula supply. This initiative intends to review the nutrients used in infant nutrition, expand testing for contaminants, enhance labelling expectations, and will evaluate potential future regulatory updates. In addition, Operation Stork Speed extends the FDA’s personal importation policy, which allows individuals to import certain infant formula products for personal use, thereby potentially increasing competitive pressures in the U.S. infant formula market. Together, these measures may introduce new compliance and regulatory obligations and may affect competitive dynamics in the U.S. market.

•The regulation of List I chemicals complicate our supply chain, and adverse regulatory actions may result in temporary or permanent interruption of distribution of our products, withdrawal of our products from the market, or other penalties. If we are unable to obtain necessary quotas for List I chemicals, we risk having delayed product launches or failing to meet commercial supply obligations.

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Risk Factors

•In 2023, the European Parliament voted on a proposal to extend the EU's MDR transition periods until 2027-2028, together with an extended validity of existing medical device certificates and the possibility to sell off existing medical device products until end of shelf-life. With this decision the European Parliament took into account that there is currently a shortage in the number of Notified Bodies authorized to carry out conformity assessments required under MDR.

•Increased scrutiny of product classifications by government agencies can result in investigations and prosecutions, which carry the risk of significant civil and criminal penalties, including but not limited to, debarment from government business and prohibition to continue the business.

Limitations on reimbursement, continuing healthcare reforms, and changes to reimbursement methods in the United States and other countries may have an adverse effect on our financial condition and operating results.

Increasing healthcare expenditures have received considerable public attention in many of the countries in which we operate. In the U.S., government programs such as Medicare and Medicaid, as well as private insurers, have been focused on cost containment. In some markets in the EU and outside the U.S., the government provides healthcare at low direct cost to consumers and regulates pharmaceutical prices or patient reimbursement levels to control costs for the government-sponsored healthcare system. Both private and governmental entities are seeking ways to reduce or contain healthcare costs through legislative and regulatory efforts, as further described in Item 1. Business - Government Regulation and Pricing, which could place further pricing pressure on our products and could negatively impact our operating results.

Under the Medicaid Drug Rebate Program ("MDRP"), a number of our products are considered non-innovator products and therefore subject to Medicaid federal upper limits ("FUL"), which restrict the amount state Medicaid programs reimburse for non-innovator covered outpatient drugs. While utilization of our products under the Medicaid program is limited, our products generally are subject to state Medicaid program payment methodologies, and may be subject to reimbursement pressures beyond our control.

Unfavorable publicity or consumer perception of the safety, quality, and efficacy of our products could have a material adverse effect on our business.

We are dependent upon consumers' perception of the safety, quality, and efficacy of our products. Negative consumer perception of our products or certain ingredients may arise from media reports, social media posts, product liability claims, regulatory investigations or other government action, or recalls affecting our products or our industry, any of which may reduce demand or could damage our reputation and adversely affect our business.

•Our products involve risks such as product contamination, spoilage, mislabeling, and tampering that could require us to recall one or more of our products or could result in death or injury to consumers. Serious product quality concerns could also result in product liability lawsuits or governmental actions against us that, among other things, could result in additional costs, the suspension of production or distribution of our products, product seizures, loss of certain licenses, delays in the issuance of governmental approvals for new products, or other governmental penalties.

•We cannot guarantee that counterfeiting, imitation or other tampering with our products will not occur or that we will be able to detect and resolve it, which could lead to death or injury of consumers and negatively impact our reputation.

•Our nutritional product category is subject to certain consumer preferences and concerns, including the number of mothers who choose to use infant formula products rather than breastfeed their babies, which could change based on factors including increased promotion of the benefits of breastfeeding over the use of infant formula by private, public and government sources and changes in the number of families that are provided with infant formula by the U.S. federal government through the Women, Infants and Children program, which we do not participate in.

•With respect to our powdered infant formula products, a risk of contamination or deterioration may exist at each stage of the production cycle, including the purchase and delivery of raw materials, the processing and packaging of food products, and the use and handling by consumers, hospital personnel, and healthcare professionals. If certain of our infant formula products are found or alleged to have suffered contamination or deterioration, whether or not under our control, our reputation and our infant formula product category sales could be materially adversely affected. As described in Part II. Item 7 Management's Discussion and Analysis of Financial Condition and Results of Operations, in response to the warning letter from the FDA in August 2023 and additional inspection observations at our Wisconsin infant formula facility, we have implemented new protocols and made additional infrastructure investments to address these observations and expect to continue to make such changes. While all sites have returned to reliable, quality-assured production, we incurred certain extraordinary costs associated with the remediation and

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enhancement actions, experienced increased production costs and reduced production volumes, and expect higher compliance costs to continue. Moreover, if we are unable to address the FDA's past or future observations to the FDA's satisfaction, we could incur additional compliance costs, and our reputation could be adversely affected if we are perceived by consumers to not be in compliance with such framework.

•Our financial success is dependent on positive brand recognition, which results in part from large investments in marketing over a period of years. The success of our brands may suffer if we do not continue to invest in marketing, or if our marketing plans or product initiatives are unsuccessful. In addition, an issue with one of our products could negatively affect the reputation of other products, potentially hurting our financial results.

•Negative social media posts or comments about us, store brands or generic pharmaceuticals, or our products could damage our reputation and adversely affect our business. Negative posts or comments about our products could result in increased pharmacovigilance reporting requirements, which may give rise to liability if we fail to fully comply with such requirements.

Lack of availability, or significant increases in the cost, of raw materials used in manufacturing our products could have a material adverse effect on our profit margins and operating results.

We rely on third parties to source many of our raw materials and to manufacture certain dosage forms that we distribute. Refer to Item 1. Business - Materials Sourcing. Certain raw materials may experience rapid cost increases due to increased labor, relevant commodities, tariffs and other trade restrictions, energy costs and other inflationary pressures, and this may have a material negative impact on our financial results, whether or not we are able to pass on such increases to our customers. We maintain several single-source supplier relationships, either because alternative sources are not available or because the relationship is advantageous due to regulatory, performance, quality, support, or price considerations. Unavailability or delivery delays of single-source components or products could adversely affect our ability to ship the related product in a timely manner, a particularly severe effect for higher volume or more profitable products. It can take substantial time and investment to qualify an alternative supplier or material sources and establish reliable supply.

We maintain a strict program of verification and product testing throughout the ingredient sourcing and manufacturing process to identify potential counterfeit ingredients, adulterants, and toxic substances. Nevertheless, discovery of previously unknown problems with raw materials, product manufacturing processes, or new data suggesting an unacceptable safety risk, could result in a voluntary or mandatory withdrawal of the contaminated product from the marketplace, either temporarily or permanently. Any future recall or removal would result in additional costs and lost revenue, harm our reputation, and may give rise to product liability litigation.

Changes in regulation could impact the supply of API and certain other raw materials used in our products. For example, the EU promulgated new standards requiring all API imported into the EU be certified as complying with Good Manufacturing Practices established by the EU. The regulations placed the certification requirement on the regulatory bodies of the exporting countries, which led to an API supply shortage in Europe as certain governments were not willing or able to comply with the regulation in a timely fashion, or at all. A shortage in API or other raw ingredients could cause us to have to cease manufacture of certain products, or to incur costs and delays to qualify other suppliers to substitute for those API manufacturers who are unable to export. This could have a material adverse effect on our business, results of operations, financial condition, and cash flow.

Moreover, our infant formula products require certain key raw ingredients that are derived from raw milk, which is influenced by factors beyond our control including seasonal and environmental factors, governmental agricultural and environmental policy, and global demand. Due to these factors, we cannot guarantee that there will be sufficient supplies of these key ingredients to produce infant formula.

Disruption of our supply chain, including as a result of pandemics, global health crises, wars or other civil unrest, including the war in Ukraine, or in the Middle East, could have a material adverse effect on our business, financial condition, results of operations and cash flows.

Our ability to manufacture, deliver and sell our products is critical to our success. Damage or disruption to our collective supply or distribution capabilities resulting from pandemics and other health crises, including government responses thereto, labor shortages, armed hostilities, border closures, weather conditions, freight carrier availability, any potential effects of climate change, natural disasters, strikes or other labor unrest or other reasons could impair our ability to manufacture, source inputs, ship, sell or timely deliver our products. Competitors can be affected differently by any of these events depending on a number of factors, including the location of their suppliers and operations. Failure to take adequate steps to reduce the likelihood or mitigate the potential impact of any of these events, or to effectively manage such events if they occur, particularly when a commodity or raw material is sourced from or a product is manufactured at a single location, could adversely affect our business, financial condition, results of operations and cash flows and require additional resources to restore our supply chain.

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Risk Factors

As the war in Ukraine continues, supply chain disruptions in specific categories such as oil, agricultural and paper based commodities continue to lead to inflationary pressures in those areas. Any escalation of the conflict could lead to wider disruptions in our supply chain or have larger macroeconomic effects. Additionally, the conflict in the Middle East could impact our supply of API. Israel is a global technology research and development center that plays a critical role to the global API market, as a number of key suppliers are located within Israel. Perrigo sources raw materials and finished goods from suppliers in Israel for certain self-care products, including Omeprazole. There is potential for disruption as it relates to in-country logistics, including freight. As a precaution, Perrigo has engaged alternate suppliers to help minimize a potential supply disruption. Although there has not been any material impact on operations and we believe we have a strong mitigation plan in place, the conflict in the Middle East remains active and fluid and we could experience disruptions to our API supply. Future supply chain disruptions and inflationary pressures from the continuation of the conflicts between Russia and Ukraine, and escalating conflicts in the Middle East and neighboring regions, are uncertain. Given the international scope of our operations, such effects of ongoing wars and armed conflicts, and others we cannot anticipate, could adversely affect our business, business opportunities, operations, and financial results.

As the COVID-19 pandemic demonstrated, the global economy and the self-care markets in which we compete are susceptible to impacts from public health crises. Future public health incidents could materially impact demand, operations, supply chains, and liquidity, depending on severity, duration, and mitigation effectiveness. The magnitude of any such adverse impacts are not determinable.

A disruption at any of our main manufacturing facilities could have a material adverse effect on our business, financial position, and results of operations.

Our manufacturing operations are concentrated in a few locations. Refer to Item 1. Business - Manufacturing and Distribution for more information. A significant disruption at one or more of these facilities, whether due to fire, natural disaster, power loss, intentional acts of vandalism, climate change, war, terrorism, insufficient quality, or pandemic could materially and adversely affect our business.

Our business could be negatively affected by the performance of our collaboration partners and suppliers, and any such adverse impact could be material.

We have entered into strategic alliances with partners and suppliers to develop, manufacture, market and/or distribute certain products, or components of our products in various markets. We commit substantial effort, funds and other resources to these various collaborations. There is a risk that our investments in these collaborative arrangements will not generate the anticipated financial returns. While we believe our relationships with our partners and suppliers generally are successful, disputes, conflicting priorities or regulatory or legal intervention could be a source of delay or uncertainty as to the expected benefit of the collaboration. A failure or inability of our partners or suppliers to fulfill their collaboration obligations, or the occurrence of any of the risks above, could have an adverse effect on our business, financial condition, and results of operations.

Our business depends upon certain customers for a significant portion of our sales, therefore our business would be adversely affected by a disruption of our relationship with these customers or any material adverse change in these customers' businesses.

We have one significant customer that represented 12.9% of our consolidated net sales for the year ended December 31, 2025. While we have other important customers, no other individual customer represents more than 10% of net sales. However, the loss of one or more of our customers could be material. We believe we have good relationships with all our customers. If our relationship with any of our significant customers, including the terms of doing business with the customers, changes significantly, or if one or more such customers were to experience difficulty in paying us on a timely basis, it could have a material adverse impact on us. The risk of such impacts would be increased by continued consolidation in the sector in which our customers operate. Refer to Item 1. Business - Significant Customers.

Additionally, if we are unable to maintain adequately high levels of customer service over time, customers may choose to assess penalties (where such penalties are contractually permitted), obtain alternate sources for products, and/or end their relationships with us.

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Risk Factors

Our businesses could be adversely affected by deteriorating economic conditions in the countries in which we operate, shifts in the retail landscape, and changes in consumer behavior, and our results may be volatile due to these or other circumstances beyond our control.

Our customers could be adversely impacted if economic conditions worsen in the U.S. or other countries in which we operate. In the U.S., our consumer self-care business does not advertise our store brand products like national brand companies and thus, is largely dependent on retailer promotional activities to drive sales volume and increase market share. If our customers do not have the ability to invest in store brand promotional activities, our sales may suffer. Additionally, while we actively review the credit worthiness of our customers and suppliers, we cannot fully predict to what extent they may be negatively impacted by slowing economic growth. Our stock price has declined and may continue to decline due to any earnings release or guidance that does not meet market expectations or other circumstances, which may be beyond our control, such as the severity, length and timing of the cough/cold/flu and allergy seasons, the timing of new product approvals and introductions by us and our competitors, and the timing of retailer promotional programs.

Changes in the retail landscape and consumer behavior may adversely affect our business, financial condition, and results of operations. The increasing prevalence of alternative sales channels, such as e‑commerce, direct‑to‑consumer online brands, subscription services, and buying clubs, together with evolving consumer preferences, demand patterns, shopping behaviors, and consumption levels, may result in pressure on pricing, and shift market share in ways that are difficult to predict. These dynamics could adversely affect our business, results of operations, and financial condition.

Our performance is also dependent on discretionary consumer spending, which is influenced by factors beyond our control, including general economic and political conditions, consumer confidence, interest rates, inflation, tax rates, credit availability, employment levels, and housing and financial market conditions. Deterioration in any of these factors could reduce customer spending and adversely affect our net sales and profitability. Our performance is also influenced by consumer trends, habits, and preferences. A shift away from traditional medicine or changes in other preferences could diminish demand for our products and reduce sales. As a result of these and other risks and uncertainties, our future sales, earnings, and cash flows could be volatile and vary materially from our expectations, including our published guidance.

Our ability to achieve operating results in line with published guidance is inherently subject to significant uncertainties, and related share-price volatility may heighten our susceptibility to investor lawsuits and activist shareholder activity.

Our financial projections, including any sales, earnings guidance, or outlook we may provide to investors from time to time, are forward-looking statements based on estimates and assumptions that are uncertain and subject to risks, contingencies, and factors beyond our control. These estimates and assumptions may be adversely affected by the risks described in this Report and by other uncertainties, and actual results may vary and differ materially from those expressed or implied by such projections or guidance. Any failure to meet market expectations, or change to, our projections or guidance may adversely affect the market price of our ordinary shares.

It has become increasingly commonplace for investors to file lawsuits against companies following a rapid decrease in share price. We have been in the past, are currently, and may be in the future, named in these types of lawsuits, which can be costly and divert management attention and other resources away from our business, regardless of their merits, and could result in adverse settlements or judgments, which could have a material impact on our reputation, business, and results of operation.

A decline in our share price may also increase our vulnerability to activist shareholder actions. Responding to activist campaigns or a potential proxy contest may require significant time, attention, and resources from management and our Board and may result in substantial legal, advisory, and administrative expenses. Investor perception of activist activity may also increase share price volatility, and the associated distraction and resource demands could impede our ability to execute our business strategy and related strategic initiatives, adversely affecting our business, financial condition, and results of operations.

Our exposure to cybersecurity threats and third‑party information system vulnerabilities could result in a material adverse effect on our business.

Our business operations are increasingly dependent upon information technology systems that are highly complex, interrelated with our external business partners, and may contain confidential information (including personal data, trade secrets or other intellectual property, or proprietary business information). The nature of digital systems, both internally and externally, makes them potentially vulnerable to disruption or damage from human error and/or security breaches, which include, but are not limited to, ransomware, data theft, denial of service attacks, sabotage,

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industrial espionage, interruptions or other system issues, unauthorized access and computer viruses. Such events may be difficult to detect, and once detected, their impact may be difficult to assess and address.

Cyber-attacks have become increasingly common. We have experienced immaterial business disruption, monetary loss and data loss as a result of phishing, business email compromise and other types of attacks. In addition, the rapid evolution and increased adoption of new technologies, such as artificial intelligence, may intensify our cybersecurity risks. While we continue to employ resources to monitor our systems and protect our infrastructure, these measures may prove insufficient, and that could subject us to significant risks, including, without limitation:

•Ransomware attacks, other cyber breaches or disruptions that impair our ability to develop products, meet regulatory approval requirements or deadlines, produce or ship products, take or fulfill orders, and/or collect or make payments on a timely basis;

•System issues, whether as a result of an intentional breach, a natural disaster or human error that damage our reputation and cause us to lose customers, experience lower sales volume, and/or incur significant liabilities;

•Significant expense to remediate the results of any attack or breach and to ensure compliance with any required disclosures mandated by the numerous global privacy and security laws and regulations; and

•Interruptions, security breaches, loss, misappropriation, or unauthorized access, use or disclosure of confidential information,

which, individually or collectively, could result in financial, legal, business or reputational harm to us and could have a material adverse effect on our business, financial condition and results of operations.

Our inability to timely and responsibly leverage emerging technologies, including generative artificial intelligence, could result in a material adverse effect on our business, and the use of emerging technologies generally could result in regulatory action, legal liability, operational challenges or reputational harm.

Our ability to identify, adopt, and effectively integrate emerging technologies, including generative artificial intelligence (“AI”), into our product development, services, and operations is an important factor in maintaining our competitiveness. If we are unable to timely and responsibly leverage such technologies, our operating results, and growth prospects could be adversely affected. Increased use of AI introduces certain risks, including heightened exposure to cybersecurity threats, data privacy and intellectual property concerns, algorithmic errors or bias leading to flawed outputs or poor decision-making, and increased third-party dependency risks. Additionally, the legal and regulatory landscape governing AI is rapidly evolving in the United States and globally. Changes in, or noncompliance with, applicable laws, regulations, standards, and industry guidance could result in increased compliance costs, operational constraints, liability, or reputational harm. While we have implemented, and expect to continue enhancing, governance, security, and quality control measures related to the use of AI and other emerging technologies, these measures may not be effective in all cases, and we may incur significant costs or face unanticipated consequences as these technologies and their regulatory frameworks continue to develop.

We are subject to data privacy laws and regulations and our failure in compliance could result in a material adverse effect on our business.

We are subject to numerous laws and regulations designed to protect personal data, such as the California Consumer Privacy Act and other similar state laws in the U.S., the U.K.'s Data Protection Act of 2018 and the European General Data Protection Regulation ("GDPR"). These data protection laws introduced more stringent data protection requirements and significant potential fines, as well as increased our responsibility and potential liability in relation to personal data that we process and possess. Compliance with such laws requires significant time and resources and may impose significant challenges that are likely to continue to increase over time, particularly as additional regulatory agencies adopt similar or new requirements. We have put mechanisms in place to ensure compliance with applicable data protection laws, but there can be no guarantee of their effectiveness. For more information regarding our cybersecurity activities, please refer to Item 1C. Cybersecurity.

Management transition and our ability to attract and retain key personnel create uncertainties which may negatively impact our business.

Our success depends on attracting, developing, and retaining qualified leaders and other key employees. Competition for skilled personnel and leaders within and outside of our industry is high, and we may be unable to hire or retain needed talent. We have experienced significant changes to our leadership team over the past several years. Loss of key personnel, vacancies in critical roles, or organizational changes, including leadership transitions and succession planning, creates uncertainty and could disrupt operations and adversely affect our business, financial condition, or results of operations.

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During 2025, the Company undertook organizational changes to streamline its leadership structure and align the organization around global categories. In connection with these changes, the Company discontinued the roles of Executive Vice President and President for each of the CSCI and CSCA segments. The Company appointed Roberto Khoury as Executive Vice President and Chief Commercial Officer, with responsibility for operating results for the CSCI and CSCA segments. These actions are intended to advance the Company’s multi-year Stabilize, Streamline and Strengthen plan and reflect the Company’s operational readiness. Although we believe these leadership transitions are in the best interest of our stakeholders, any change in executive management creates uncertainty.

Evolving labor market conditions including wage inflation, labor shortages, changes in immigration laws and policies, and preferences for remote or flexible work, may increase costs, constrain staffing, and reduce the effectiveness of our talent programs.

Strategic Risks

We may not realize the benefits of business acquisitions, divestitures, and other strategic transactions, which could have a material adverse effect on our operating results.

In the normal course of business, we engage in discussions relating to possible acquisitions, divestitures, and other strategic transactions, some of which may be significant in size or impact. Transactions of this nature create substantial demands on management, operational resources, technology, and financial and internal control systems, and can be subject to government approvals or other closing conditions beyond the parties' control. In the case of acquisitions, we may face difficulties with integrating these businesses, managing expanded operations, achieving operating or financial synergies in expected timeframes or in new products or geographic markets. In the case of divestitures, including the disposition of the Rare Diseases Business and the separation of the Rx business, we may face difficulty in effectively transferring contracts, obligations, facilities, and personnel to the purchaser, while minimizing continued exposure to risks and liabilities of the divested business. Moreover, the agreement for the sale of the Rare Diseases Business provided for up to €85 million in potential earnout payments based on the Rare Diseases Business achieving certain sales milestones. Should the business not perform up to these standards, we may not receive some or all of the earnout payments.

There are inherent uncertainties involved in identifying and assessing the value, strengths, and profit potential, as well as the weaknesses, risks, and contingent and other liabilities of acquisition targets, which can be affected by risks and uncertainties relating to government regulations and oversight as well as changes in business, industry, market or general economic conditions. For example, after our acquisition of Nestlé’s Gateway infant formula plant along with the U.S. and Canadian rights to the GoodStart® infant formula brand and other related formula brands ("Gateway"), in response to the FDA's evolving regulatory expectations on infant formula and observations at our facilities, we have shortened our production campaigns to perform more frequent major cleanings and implemented enhanced product testing and quality procedures, resulting in increased production costs and reduced production volumes of infant formula than previously anticipated.

Moreover, the financing of any acquisition can have a material impact on our liquidity, credit ratings and financial position. Alternatively, issuing equity to pay all or a portion of acquisition purchase price would dilute our existing shareholders.

Acquisitions and divestitures also involve costs, including fees and expenses of financial advisors, lawyers, accountants, and other professionals, and can involve retention bonuses and other additional compensation of employees or increase turnover in personnel. Any of these risks or expenses could have a negative effect on our financial condition or results of operations.

During fiscal year 2025, we commenced a strategic review of our oral care business and infant formula business and began exploring a range of strategic alternatives for those businesses. There can be no assurance that these strategic reviews will result in any particular outcome or transaction, or as to the timing thereof.

We have acquired significant assets that could become impaired or subject us to losses and may result in an adverse impact on our results of operations, which could be material.

We have recorded significant goodwill and intangible assets on our balance sheet as a result of previous acquisitions, which could become impaired and lead to material charges in the future.

We perform an impairment analysis on intangible assets subject to amortization when there is an indication that the carrying amount of any individual asset may not be recoverable. Any significant change in market conditions,

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estimates or judgments used to determine expected future cash flows that indicates a reduction in carrying value may give rise to impairment in the period that the change becomes known. Goodwill, indefinite-lived intangible asset, and definite-lived intangible asset impairments are recorded in Impairment charges on the Consolidated Statements of Operations. As of December 31, 2025, the net book value of our goodwill and intangible assets were $2.1 billion and $2.4 billion, respectively. In the past three years, we have recognized a total of $1,542.0 million in asset impairments, across all segments and asset categories. Indicators of impairment are difficult to predict, particularly in the pharmaceutical and medical device industries. Because goodwill and intangible assets represent a significant portion of our total assets, any impairment charge could have a material adverse effect on our financial condition and results of operations in the period recognized, and could adversely affect the market value of our common stock and/or our outstanding debt securities. Refer to Item 8. Note 10 for additional information related to our goodwill and intangible assets.

There can be no assurance that our business strategy and related strategic initiatives, including restructurings, will be executed effectively or achieve their intended effects.

Our success is dependent in large part on our ability to implement our One Perrigo strategy and business model successfully. We continue to invest in initiatives, including innovation, information systems and tools, and our people to drive consistent and sustainable results. We believe these initiatives will reduce operating costs and/or enhance our net sales, operating margins, and earnings. Certain of these initiatives require substantial management time and effort and costs during implementation, and there can be no assurance any of these initiatives will produce the anticipated benefits. Any increase in such costs or delay or failure to achieve the anticipated benefits could materially adversely affect our business, results of operations, liquidity, and financial condition. For example, the Company previously disclosed that it initiated a strategic review of its infant formula and oral care businesses to assess a full range of alternatives, and there are no assurances that any such alternatives may achieve its intended objective.

During the first quarter of 2026, we have begun transitioning from a geographic segment reporting structure to a category-based segment view, enabling us to better align our financial disclosures and operational analysis with our product offerings and strategic priorities. The change is being made to stay in alignment with the way our chief operating decision maker intends to make future operating decisions, allocate resources and manage the growth and profitability of the Company. The anticipated change is not expected to have any impact on the Company's historical consolidated financial position, results of operations, or cash flows.

Failure to effectively monitor our strategies, initiatives, and risks related to environmental, social, sustainability and governance matters, as well as any actual or perceived inability to satisfy the evolving and diverging requirements and expectations of our investors, customers, regulators, employees, suppliers and other stakeholders with respect to such matters, may negatively affect our business and operations.

Regulatory developments and stakeholder expectations relating to environmental, social, sustainability and governance matters are rapidly changing. There has been increasing scrutiny over climate, corporate diversity and other environmental, social and sustainability topics in the markets we serve, resulting in, and among other responses, new and changing laws, regulations and policies regarding these topics that may result in increased costs and disruption to operations. For example, the European Union has adopted mandatory sustainability report and due diligence requirements under the Corporate Sustainability Reporting Directive (“CSRD”) and the Corporate Sustainability Due Diligence Directive ("CSDDD"). While certain jurisdictions in which we operate have adopted or proposed similar laws, regulations or policies, other jurisdictions have adopted or proposed diverging or conflicting laws, regulations or policies. Our actual or perceived inability to comply with all applicable law, regulation or policies, including on environmental, social, sustainability and governance matters, could increase our exposure to legal and reputational risks and have a material adverse effect on our business.

Moreover, stakeholder expectations are not uniform on these matters and continue to diverge across different jurisdictions, and we may be unable to satisfy the varying expectations of all relevant policymakers and other stakeholders and any actual or perceived failure to successfully navigate such expectations may expose us to negative publicity, shareholder activism, litigation or other engagement from stakeholders, as well as the potential for investigations and enforcement by governmental authorities. If we are unable to adequately respond to such developments, including by adapting existing practices and procedures to changing requirements, some of which may be conflicting, we may miss corporate opportunities, become subject to regulatory or market scrutiny, and be exposed to legal reputational, operational and financial risks.

We have set goals and commitments related to climate and other sustainability issues. Given the varied and evolving expectations of our stakeholders, there can be no assurance that such goals and commitments will align with the expectations of all relevant stakeholders. In addition, there are many factors, including factors outside of our control, that impact our ability to achieve any goals or commitments we set with respect to these matters. Any

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failure or perceived failure to achieve our sustainability goals or to act responsibly with respect to such matters may negatively impact our operations and/or financial condition.

If we are unable to maintain effective internal control over financial reporting, investors could lose confidence in the accuracy and completeness of our financial reports and the market price of shares could be adversely affected.

As a publicly traded company, we are required to maintain effective internal controls over financial reporting and to report any material weaknesses in our internal control. Internal control over financial reporting is a process designed to provide reasonable assurance regarding the accuracy and completeness of our financial reporting for external purposes in accordance with generally accepted accounting principles. We spend a substantial amount of management and other employee time and resources to comply with laws, regulations and standards relating to corporate governance and public disclosure. In particular, Section 404 of the Sarbanes-Oxley Act of 2002 requires management’s annual review and evaluation of our internal control over financial reporting and attestation as to the effectiveness of these controls by our independent registered public accounting firm. If we fail to maintain the adequacy of our internal controls, we may not be able to ensure that we can conclude on an ongoing basis that we have effective internal control over financial reporting.

Global Risks

Our business, financial condition, and results of operations are subject to risks arising from the international scope of our operations.

We manufacture, source raw materials, and sell our products in a number of countries. The percentage of our business outside the U.S. has been increasing. We are subject to risks associated with international manufacturing and sales, including changes in regulatory requirements. Refer to Item 1. Business - Government Regulation and Pricing.

In 2025, the U.S government imposed new and additional tariffs on a significant number of countries and threatened to further increase the scope and amount of tariffs in the event of retaliatory countermeasures. The future of these current tariffs, and the possibility for new tariffs which could include ones specifically targeting pharmaceuticals, under which many of our U.S. OTC self-care products may be classified, remains uncertain. In February 2026, the U.S. Supreme Court struck down certain tariffs previously imposed by the U.S. government, but the U.S. government has expressed an intention to reinstate and in certain cases increase tariffs in response. The timing, scope, duration, and potential exemptions associated with these new tariffs remain subject to further administrative action and clarification.

The U.S. Department of Commerce initiated an investigation under Section 232 of the Trade Expansion Act of 1962, as amended, to determine the effects of importing pharmaceuticals and pharmaceutical ingredients on national security. While no specific action has been taken to date, this investigation may lead to the imposition of tariffs on pharmaceutical imports, consistent with the current U.S. administration's stated policy objective of reshoring pharmaceutical manufacturing to the United States. Through fiscal year 2025, these new tariffs and trade policies have had a significant impact on our results of operations and the impact of these tariffs has materially increased the cost of goods for our products and materials sourced from other countries, particularly China. Given the recent invalidation of prior tariffs and the imposition of new temporary tariffs, our cost structure remains subject to rapid and unpredictable change, and we expect continued material impacts on our U.S. business. The Supreme Court did not determine whether duties paid under the invalidated tariff regime must be refunded, further contributing to uncertainty regarding historical and future cost of goods sold.

As a result of these dynamic conditions and uncertainties, we have modified, and may further modify, our operations and strategic initiatives, including by adjusting our investment priorities, reallocating resources, or delaying specific initiatives, such as deferring capital expenditures on the Nutrition Network Optimization project, initiating an enterprise-wide operational enhancement program, and seeking further working capital improvements. If we are unable to mitigate these increased costs through supply chain adjustments, pricing strategies or other measures, these costs, as well as the costs incurred in implementing these measures, could have a material adverse impact on our results of operations and cash flows from operations.

We cannot predict the extent to which other countries will impose duties, tariffs, taxes or other similar restrictions upon the import or export of goods and materials in the future, nor can we predict future U.S. trade policy, including the potential continued regulatory forbearance allowing imported infant formulas in the United States, or the terms of any renegotiated trade agreements and their impact on our business.

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Similarly, we cannot predict which of our products will be impacted by tariffs or eligible for exceptions under existing or future trade agreements. In addition, in response to tariffs announced by the United States, other countries have implemented, and may implement additional, retaliatory tariffs on U.S. goods. Political tensions as a result of trade policies could reduce trade volume, investment, technology exchanges, and other economic activities between major international economies. In addition, elevated tariffs or trade restrictions, or the expectation of such changes, could increase inflation or unemployment and reduce consumers' disposable income and spending. The occurrence of any of the foregoing could result in a material adverse effect on global economic conditions and the stability of global financial markets, which could in turn have a material adverse impact on our business and financial condition.

Additionally, we are subject to periodic reviews and audits by governmental authorities responsible for administering import and export regulations. To the extent that we are unable to successfully defend against an audit or review, we may be required to pay assessments, penalties, and increased duties.

Certain of our facilities operate in a special purpose sub-zone established by the U.S. Department of Commerce Foreign Trade Zone Board, which allows us certain tax advantages on products and raw materials shipped through these facilities. If the Foreign Trade Zone Board were to revoke the sub-zone designation or limit our use, we could be subject to increased duties.

Although we believe that we conduct our business in compliance with applicable anti-corruption, anti-bribery and economic sanctions laws, if we are found to not be in compliance with such laws or other anti-corruption laws, we could be subject to governmental investigations, legal or regulatory proceedings, substantial fines, and/or other legal or equitable penalties. This risk increases in locations outside of the U.S., particularly in locations that have not previously had to comply with the Foreign Corrupt Practices Act ("FCPA"), U.K. Bribery Act 2010, Irish Criminal Justice (Corruption Offenses) Act 2018, and similar laws.

We operate in jurisdictions that could be affected by economic and geopolitical instability, which could have a material adverse effect on our business.

Our operations and supply partners could be affected by economic or political instability, embargoes, military hostilities, unstable governments and legal systems, inter-governmental disputes, travel restrictions, terrorist acts, and other armed conflicts. The global nature of our business involves the following risks, among others:

•The U.S. Department of State and other governments have at times issued advisories regarding travel to certain countries in which we do business, causing regulatory agencies to curtail or prohibit their inspectors from traveling to inspect facilities. If these inspectors are unable to inspect our facilities, the regulatory agencies could withhold approval for new products intended to be produced at those facilities.

•As a result of the exit of the U.K. from the E.U. (“Brexit”), which occurred in 2020, we continue to experience uncertainty surrounding certain of our businesses. While the E.U. and U.K. ratified a Trade and Cooperation Agreement (the “TCA”) that sets forth a framework for cooperation between the E.U. and U.K., including the mutual recognition of GMP inspections of manufacturing facilities for medicinal products, it does not contain wholesale mutual recognition of pharmaceutical regulations and product standards, and the E.U. and the U.K. continue to amend legislation and regulations post-Brexit. We continue to monitor for divergence between E.U. and U.K. regulations that could negatively impact our supply chain operations or other product development or sales operations.

•Moreover, financial volatility and geopolitical instability outside the U.S. may impact our operations or affect global markets. Refer to “Risk Factors—Operational Risks—Disruption of our supply chain, including as a result of pandemics, global health crises, or wars or other civil unrest, including war in Ukraine, or in the Middle East, could have a material adverse effect on our business, financial condition, results of operations and cash flows.”

The international scope of our business exposes us to risks associated with foreign exchange rates.

We report our financial results in U.S. dollars. However, a significant portion of our revenues, expenses, assets, indebtedness and other liabilities are denominated in foreign currencies. These currencies include, among others, the Euro, British pound, Canadian dollar, Swedish Krona, Chinese Yuan, Danish Krone, and Polish Zloty. Fluctuations in currency exchange rates, including as a result of inflation, central bank monetary policies, currency controls or other currency exchange restrictions have had, and could continue to have, an adverse impact on our financial performance. We may seek to mitigate the risk of such impacts through hedging, but such hedging activities may be costly and may not be effective.

In addition, emerging market economies in which we operate may be particularly vulnerable to the impact of rising interest rates, inflationary pressures, weaker oil and other commodity prices, and large external deficits. Risks in one country can limit our opportunities for portfolio growth and negatively affect our operations in another country or

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countries. Such conditions or developments could have an adverse impact on our operations. In addition, we may be exposed to credit risks in some of those markets.

Litigation and Insurance Risks

We are and may become involved in lawsuits and may experience unfavorable outcomes of such proceedings.

We are and may become involved in lawsuits arising from a wide variety of commercial, manufacturing, development, marketing, sales and other business-related matters, including, but not limited to, competitive issues, pricing, contract issues, intellectual property matters, false advertising, antitrust or unfair competition, taxation matters, workers' compensation, product quality/recall, environmental remediation, securities law, disclosure, product liability and regulatory issues. Litigation is unpredictable and could result in potentially significant monetary damages, and we could incur substantial legal expenses, even if a claim against us is unsuccessful. We intend to vigorously defend against any lawsuits, however, we cannot predict how the cases will be resolved. Adverse results in, or settlements of, such cases could result in substantial monetary judgments. No assurance can be made that litigation will not have a material adverse effect on our reputation, financial position or results of operations in the future. Refer to Item 8. Note 20.

The actual or alleged presence of certain hazardous substances or petroleum products on, under or in our currently or formerly owned property, or from a third-party disposal facility that we may have used, or the failure to remediate them, could have adverse effects, including, for example, substantial investigative or remedial obligations and limitations on our ability to sell or rent affected property or to borrow funds using affected property as collateral. There can be no assurance that environmental liabilities and costs will not have a material adverse effect on us. Refer to Item 1. Business - Environmental for more information related to environmental remediation matters.

Increased scrutiny on pricing practices and competition, including antitrust enforcement activity by government agencies and class action litigation, may have an adverse impact on our business and operating results, which could be material.

There has been increased scrutiny regarding sales, marketing, and pricing practices, including criminal antitrust investigations regarding drug pricing, civil False Claims Act investigations relating to drug pricing and marketing, multiple civil antitrust litigation initiated by governmental and private plaintiffs against pharmaceutical manufacturers and individuals, and related media reports.

Perrigo has been named as a co-defendant with certain other generic manufacturers in a number of class action, individual plaintiff direct action, State Attorney General, and county lawsuits alleging that we engaged in anti-competitive behavior to fix or raise the prices of certain drugs starting, in some instances, as early as calendar year 2010. Refer to Item 8. Note 20. While we intend to defend these lawsuits vigorously, any adverse decision could have a material adverse impact on our business, results of operations and reputation.

In addition, in May 2018, Perrigo was also served with and responded to a civil investigative demand in connection with a related civil False Claims Act investigation by the Civil Division of the Department of Justice. Although no charges or other related civil claims have been brought to date against Perrigo or any of our current employees (or, to the best of our knowledge, former employees), by the Department of Justice, we take the investigation very seriously.

Third-party patents and other intellectual property rights may limit our ability to bring new products to market and may subject us to potential legal liability, which could have a material adverse effect on our business and operating results.

The manufacture, use and sale of new products that are the subject of conflicting patent rights have been the subject of substantial litigation in the self-care and pharmaceutical industries.

•As a manufacturer of generic products, the ability of our CSCA and CSCI businesses to bring new products to market is often limited by third-party patents or proprietary rights and regulatory exclusivity periods awarded on products. Launching new products prior to resolution of intellectual property issues may result in us incurring legal liability if the related litigation is later resolved against us. The cost and time for us to develop Rx-to-OTC switch products is significantly greater than the rest of the new products that we introduce. Any failure to bring new products to market in a timely manner could cause us to lose market share, and our operating results could suffer.

•We may have to defend against charges that we infringed patents or violated proprietary rights of third parties. This could require us to incur substantial expense and could divert significant effort of our technical

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and management personnel. If we are found to have infringed rights of others, we could lose our right to develop or manufacture some products or could be required to pay monetary damages or royalties to license proprietary rights from third parties. Additionally, if we choose to settle a dispute through licensing or similar arrangements, the costs associated with these arrangements may be substantial and could include ongoing royalties. An adverse determination in a judicial or administrative proceeding or failure to obtain necessary licenses could prevent us from manufacturing and selling a number of our products.

•At times, our CSCA business may seek approval to market drug products before the expiration of a third party's patents for therapeutically equivalent products, based upon our belief that such patents are invalid, unenforceable or would not be infringed by our products. In these cases, we may face significant patent litigation. Depending upon a complex analysis of a variety of legal and commercial factors, we may, in certain circumstances, elect to market a store brand or generic product while litigation is pending, before any court decision, or while an appeal of a lower court decision is pending, known as an "at risk" launch. The risk involved in an "at risk" launch can be substantial because, if a patent holder ultimately prevails, the remedies available to the patent holder may include, among other things, damages measured by the profits lost by the holder, which are often significantly higher than the profits we make from selling the generic version of the product. By electing to proceed in this manner, we could face substantial damages if we receive an adverse final court decision. In the case where a patent holder is able to prove that our infringement was "willful" or "exceptional," under applicable law, the patent holder may be awarded up to three times the amount of its actual damages or we may be required to pay attorneys’ fees.

The success of certain of our products depends on the effectiveness of measures we take to protect our intellectual property rights and patents.

If we fail to adequately protect our intellectual property, competitors may manufacture and market similar products.

•We have been issued patents covering certain of our products, and we have filed, and expect to continue to file, patent applications seeking to protect newly developed technologies and products in various countries. Any existing or future patents issued to or licensed by us may not provide us with any significant competitive advantages for our products or may even be challenged, invalidated, or circumvented by competitors. In addition, patent rights may not prevent our competitors from developing, using, or commercializing non-infringing products that are similar or functionally equivalent to our products.

•We also rely on trade secrets, unpatented proprietary know-how, and continuing technological innovation that we seek to protect, in part by confidentiality agreements with licensees, suppliers, employees, and consultants. If these agreements are breached, we may not have adequate remedies for any such breach. Disputes may arise concerning the ownership of intellectual property or the applicability of confidentiality agreements. Furthermore, trade secrets and proprietary technology may otherwise become known or be independently developed by competitors or, if patents are not issued with respect to products arising from research, we may not be able to maintain the value of such intellectual property rights.

Significant increases in the cost or decreases in the availability of the insurance we maintain could adversely impact our operating results and financial condition. Disputes with insurers on the scope of existing policies may limit the coverage available under such policies.

To protect against various potential liabilities, we maintain a variety of insurance programs, including property, general, product, and directors' and officers' liability. We may reevaluate and change the types and levels of insurance coverage that we purchase. Insurance costs, including deductible or retention amounts, may increase, or our coverage could be reduced, which could lead to an adverse effect on our financial results depending on the nature of a loss and the level of insurance coverage we maintained. Moreover, we are self-insured when insurance is not available, not offered at economically reasonable premiums or does not adequately cover claims brought against us. Our business inherently exposes us to claims, and an unanticipated payment of a large claim may have a material adverse effect on our business.

We may also disagree with our insurers on the scope of coverage provided. For example, in May 2021, insurers on multiple policies of Director & Officer insurance filed an action in the High Court in Dublin against us and our current and former directors and officers seeking declaratory judgments on certain coverage issues. While we were successful in the High Court action, and ultimately reached a settlement of this matter while it was on appeal, as noted in Item 8. Note 20, future disputes with insurers regarding the scope of coverage under the existing or future policies may result in reductions in coverage or increased costs.

Tax Related Risks

The resolution of uncertain tax positions, including any ongoing disputes with U.S. and foreign tax

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authorities, could be unfavorable, which could have a material adverse effect on our business.

Although we believe our tax estimates are reasonable and our tax filings are prepared in accordance with applicable tax laws, the final determination with respect to any tax audit or any related litigation could be materially different from our estimates or from our historical income tax provisions and accruals. The results of an audit or litigation could have a material effect on operating results or cash flows in the periods for which that determination is made and in future periods after the determination. In addition, future period earnings may be adversely impacted by litigation costs, settlements, penalties or interest assessments. See Item 8. Note 19 for a description of current audits and adjustment-related disputes and related litigation.

Changes to tax laws and regulations or the interpretation thereof could have a material adverse effect on our results of operations and the ability to utilize cash in a tax efficient manner.

Although we are incorporated in Ireland, the IRS may assert that we should be treated as a U.S. corporation (and, therefore, a U.S. tax resident) for U.S. federal tax purposes pursuant to section 7874 of the U.S. Internal Revenue Code of 1986, as amended ("Code"). For U.S. federal tax purposes, a corporation generally is considered a tax resident in the jurisdiction of its organization or incorporation. Because we are an Irish incorporated entity, we would generally be classified as a foreign corporation (and, therefore, a non-U.S. tax resident) under these rules. Section 7874 of the Code provides an exception under which a foreign incorporated entity may, in certain circumstances, be treated as a U.S. corporation for U.S. federal tax purposes.

We believe that under current law, we should be treated as a foreign corporation for U.S. federal tax purposes. However, an unfavorable determination on Perrigo Company plc’s treatment as a foreign corporation under section 7874 of the Code or changes to the inversion rules in section 7874 of the Code, the IRS Treasury regulations promulgated thereunder, or other IRS guidance and legislative proposals aimed at expanding the scope of U.S. corporate tax residence could adversely affect our status as a foreign corporation for U.S. federal tax purposes, which could have a material impact on our Consolidated Financial Statements in future periods.

Additionally, we are subject to tax laws in various jurisdictions globally. Refer to Item 1. Business - Government Regulation and Pricing for a discussion of recent changes to U.S. and EU tax laws. Any of these changes could have a prospective or retroactive application to us, our shareholders, and affiliates, and could adversely affect us by changing our effective tax rate and limiting our ability to utilize cash in a tax efficient manner.

Our effective tax rate or cash tax payment requirements may change in the future, which could adversely impact our future results of operations.

A number of factors may adversely impact our future effective tax rate or cash tax payment requirements, which may impact our future results and cash flows from operations. Refer to Item 8. Note 19. These factors include, but are not limited to: changes to income tax rates, to tax laws or the interpretation of such tax laws (including additional proposals for fundamental international tax reform globally); the jurisdictions in which our profits are determined to be earned and taxed; changes in the valuation of our deferred tax assets and liabilities; adjustments to estimated taxes upon finalization of various tax returns; adjustments to our interpretation of transfer pricing standards, treatment or characterization of intercompany transactions, changes in available tax credits, grants and other incentives; changes in stock-based compensation expense; changes in U.S. generally accepted accounting principles; expiration or the inability to renew tax rulings or tax holiday incentives; and divestitures of current operations.

Capital and Liquidity Risks

Our indebtedness could adversely affect our ability to invest in our business and implement our strategic initiatives.

Our business requires continuous capital investments, and there can be no assurance that financial capital will always be available on favorable terms or at all. Additionally, our leverage and debt service obligations could adversely affect the business. At December 31, 2025, our total indebtedness outstanding was $3.6 billion.

The agreements governing our Senior Secured Credit Facilities (as defined in Item 8. Note 13) impose material operating and financial restrictions that limit our operating flexibility, including the following:

•The Credit Agreement (as defined in Item 8. Note 13) governing our Senior Secured Credit Facilities contain, and agreements governing our other indebtedness may contain, a number of restrictions and covenants that, among other things, limit our ability and/or our restricted subsidiaries’ ability to:

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•incur or assume liens or additional debt or provide guarantees in respect of obligations of other persons;

•pay dividends or distributions or redeem or repurchase capital stock;

•prepay, redeem or repurchase certain debt;

•make loans, investments, acquisitions (including certain acquisitions of exclusive licenses) and capital expenditures;

•enter into agreements that restrict distributions from our subsidiaries;

•enter into transactions with affiliates;

•enter into sale and lease-back transactions;

•sell, transfer or exclusively license certain assets, including material intellectual property, and capital stock of our subsidiaries; and

•consolidate or merge with or into, or sell substantially all of our assets to, another person.

•The Credit Agreement governing our Senior Secured Credit Facilities contains certain covenants, including certain limitations on incurring liens and indebtedness and maintenance of certain financial ratios, including a maximum first lien secured leverage ratio.

•As a result of these restrictions, we may be limited in how we conduct our business; unable to raise additional debt or equity financing to operate during general economic or business downturns; or unable to compete effectively, take advantage of new business opportunities or grow in accordance with our plans.

•Our failure to comply with any of the covenants could result in a default under the Credit Agreement and certain other indebtedness, which, if not cured or waived, could result in us having to repay our borrowings before their due dates. Such default may allow the lenders or other note holders to accelerate the related debt and may result in the acceleration of any other debt to which cross-acceleration or cross-default provision applies. If we are forced to refinance these borrowings on less favorable terms or if we were to experience difficulty in refinancing the debt prior to maturity, our results of operations or financial condition could be materially affected. In addition, an event of default under the Credit Agreement may permit the lenders to refuse to permit additional borrowings under the Revolver (as defined in Item 8. Note 13) or to terminate all commitments to extend further credit under the Revolver. Furthermore, if we are unable to repay the amounts due and payable under the Credit Agreement or other debt instruments, the lenders and note holders may be able to proceed against the collateral granted to them to secure that indebtedness. If our indebtedness is accelerated, there can be no assurance that we would be able to repay or refinance our debt or obtain sufficient new financing.

•Future downgrades to our credit ratings may limit our access to capital and materially increase borrowing costs on current or future financing, including via trade payables with vendors. Customers' inclination to purchase goods from us may also be affected by the publicity associated with deterioration of our credit ratings.

•There are various maturity dates associated with our Senior Secured Credit Facilities, senior notes, and other debt facilities. There is no assurance that cash, future borrowings or equity financing will be available for the payment or refinancing of our indebtedness. Further, there is no assurance that any future refinancing or renegotiation of our Senior Secured Credit Facilities, senior notes or other debt facilities, or additional agreements will not have materially different or more stringent terms. Refer to Item 7. Management’s Discussion and Analysis - Capital Resources.

We cannot guarantee that we will buy back our ordinary shares pursuant to our announced share repurchase plan or that our share repurchase plan will enhance long-term shareholder value.

In October 2018, our Board of Directors authorized up to $1.0 billion of share repurchases with no expiration date, subject to the Board of Directors’ approval of the pricing parameters and amount that may be repurchased under each specific share repurchase program. During the years ended December 31, 2025 and December 31, 2024, we did not repurchase any shares under such authorization, and there can be no assurances that we will do so in the future. The specific timing and amount of additional buybacks under the authorization, if any, will depend upon several factors, including market and business conditions, the trading price of our ordinary shares, the nature of other investment opportunities, the availability of our distributable reserves and the tax consequences of any buybacks. In addition, our ability to repurchase shares may be limited in the future under Irish law, if at any time we do not have sufficient distributable reserves. No share repurchases are currently anticipated in the near term.

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Perrigo Company plc - Item 1A

Risk Factors

Buybacks of our ordinary shares could affect the market price of our ordinary shares, increase their volatility or diminish our cash reserves, which may impact our ability to finance future growth and to pursue possible future strategic opportunities and acquisitions. Although our share repurchase plan is intended to enhance long-term shareholder value, there is no assurance that it will do so, and short-term share price fluctuations could reduce the plan’s effectiveness.

Any additional shares we may issue could dilute your ownership in the Company.

Under Irish law, our authorized share capital can be increased by an ordinary resolution of our shareholders, and the directors may issue new ordinary or preferred shares up to a maximum amount equal to the authorized but unissued share capital, without shareholder approval, once authorized to do so by the articles of association or by an ordinary resolution of our shareholders.

Subject to specified exceptions, Irish law grants statutory preemption rights to existing shareholders to subscribe for new issuances of shares for cash, but allows shareholders to authorize the waiver of the statutory preemption rights either in our articles of association or by way of a special resolution. Such disapplication of these preemption rights can either be generally applicable or be in respect of a particular allotment of shares.

We are incorporated in Ireland; Irish law differs from the laws in effect in the United States and may afford less protection to, or otherwise adversely affect, our shareholders.

As an Irish company, we are governed by the Irish Companies Act 2014 (the "Act"). The Act differs in some material respects from laws generally applicable to U.S. corporations and shareholders, including the provisions relating to interested directors, mergers, amalgamations and acquisitions, takeovers, shareholder lawsuits, and indemnification of directors.

•Under Irish law, the duties of directors and officers of a company are generally owed to the company only. As a result, shareholders of Irish companies do not have the right to bring an action against the directors or officers of a company for the breach of such duties, except in limited circumstances.

•Shareholders may be subject to different or additional tax consequences under Irish law as a result of the acquisition, ownership and/or disposition of ordinary shares, including, but not limited to, Irish stamp duty, dividend withholding tax, Irish income tax, and capital acquisitions tax.

•There is no treaty between Ireland and the U.S. providing for the reciprocal enforcement of foreign judgments. Before a foreign judgment would be deemed enforceable in Ireland, the judgment must be (i) for a definite sum, (ii) provided by a court of competent jurisdiction and (iii) final and conclusive. An Irish High Court may exercise its right to refuse to recognize and enforce a foreign judgment if the foreign judgment was obtained by fraud, if it violated Irish public policy, if it is in breach of natural justice, or if it is irreconcilable with an earlier judgment.

•An Irish High Court may stay proceedings if concurrent proceedings are being brought elsewhere. Judgments of U.S. courts of liabilities predicated upon U.S. federal securities laws may not be enforced by Irish High Courts if deemed to be contrary to public policy in Ireland.

•It could be more difficult for us to obtain shareholder approval for a merger or negotiated transaction than if we were a U.S. company because the shareholder approval requirements for certain types of transactions differ, and in some cases are greater, under Irish law.

•Additionally, under the Irish Takeover Panel Act issued in 1997 and Takeover Rules issued in 2022, the Board of Directors is not permitted to take any action that might frustrate an offer for our ordinary shares, including issuing additional ordinary shares or convertible equity, making material acquisitions or dispositions, or entering into contracts outside the ordinary course of business, once the Board of Directors has received an approach that may lead to an offer or has reason to believe that such an offer is or may be imminent, subject to certain exceptions. These provisions may give the Board of Directors less ability to control negotiations with hostile offerors and protect the interests of holders of ordinary shares than would be the case for a corporation incorporated in a jurisdiction of the United States.

31

Perrigo Company plc - Item 1A

Risk Factors

We may be limited in our ability to pay dividends in the future.

A number of factors may limit our ability to pay dividends, including, among other things:

•Our ability to receive cash dividends and distributions from our subsidiaries;

•Compliance with applicable laws and debt covenants;

•Our financial condition, results of operations, capital requirements, general business conditions, and other factors that our Board of Directors may deem relevant; and

•The availability of our distributable reserves.

Under Irish law, distributable reserves are the accumulated realized profits so far as not previously utilized by distribution or capitalization, less accumulated realized losses so far as not previously written off in a reduction or a reorganization of capital duly made, subject to adjustments for any increases to, or reductions of, share premium. In addition, no distribution or dividend may be made if, at the time of the distribution or dividend, our net assets are not, or would not be, after giving effect to such distribution or dividend, be equal to, or in excess of, the aggregate of our called-up share capital plus undistributable reserves.

While we currently expect to continue paying dividends, significant changes in our business or financial condition such as asset impairments, sustained operating losses and the selling of assets, could impact the amount of distributable reserves available to us. On July 18, 2023, the Irish High Court approved the creation of $4.9 billion of distributable reserves of the Company through the reduction of the Share Premium account. The court order authorizing the creation of distributable reserves was filed with the Registrar of Companies in Ireland and became effective on July 20, 2023.

Additionally, we are subject to financial covenants in our Senior Secured Credit Facilities. Our failure to comply with these covenants could trigger events, which could result in the acceleration of the related debt. Refer to Item 7. Management's Discussion and Analysis - Capital Resources for more information.