Recognized for Continued Supply Chain Collaboration

AptarGroup, Inc. (NYSE:ATR), a global leader in drug delivery, dosing and protection technologies, and consumer product dispensing, was named a CDP Supplier Engagement Leader, for the sixth consecutive year. This assessment, based on information reported within the 2025 CDP reporting cycle, highlights companies that are engaging their suppliers on climate change and supporting efforts to address emissions throughout the value chain.

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Aptar is Named a CDP Supplier Engagement Leader for the Sixth Consecutive Year

By evaluating supplier engagement and recognizing best practices, CDP aims to accelerate global action on supply chain emissions and the transition towards a more sustainable economy. Aptar received an ‘A' score on the Supplier Engagement Assessment (SEA), which is in the leadership band. As part of Aptar's global sustainability strategy, the Company is working to cultivate a supply chain that is both socially inclusive and environmentally conscious, in support of customer and consumer needs.

In recent years, Aptar has continued to work with suppliers to support emission-reduction efforts aligned with its validated science-based targets and Carbon Transition Plan. More than 90% of Aptar's total emissions are Scope 3 emissions, with over 80% of these linked to purchased goods and services, primarily raw materials such as plastics. For this reason, Aptar collaborates with suppliers, particularly those providing raw materials, to identify potential lower-carbon alternatives and advance circularity through product design and material selection.

Aptar's Purchasing teams engage suppliers through both one-on-one collaboration and structured forums such as the Aptar Global Supplier Summit. The 2026 summit further strengthened collaboration through targeted challenge briefs, innovation exchanges, and dedicated working sessions that connected suppliers with Aptar teams to address operational and sustainability priorities. These interactions are designed to support alignment with Aptar's sustainability strategy while advancing practical, supplier-led solutions. In parallel, Aptar continues to strengthen expectations for supplier performance and transparency. Aptar's expectations of suppliers include sharing environmental data, participating in assessments and screening programs, and contributing to initiatives focused on materials, emissions reduction, and responsible sourcing.

The Supplier Engagement Assessment methodology provides a score which assesses supplier action as reported by a company's CDP response. The score assesses the level of detail and comprehensiveness of the content, as well as the company's awareness of climate change issues, management methods and progress towards action taken on climate change as reported in the response. The highest-rated companies are recognized as Supplier Engagement Leaders on the CDP website. For more information on Aptar's sustainability progress, including its responsible supply chain efforts, visit aptar.com/sustainability.

About Aptar

Aptar is a global leader in drug delivery, dosing and protection technologies, and consumer product dispensing. Aptar partners with the world's top healthcare and consumer brands to deliver medicines and create exceptional user experiences. Serving diverse markets, from pharmaceutical to beauty to food and beverage, Aptar combines market expertise with proprietary design, engineering and science to develop innovative solutions that help improve lives worldwide. Headquartered in Crystal Lake, Illinois, Aptar employs 14,000 dedicated people across 20 countries. Learn more at http://www.aptar.com.

This press release contains forward-looking statements, including statements regarding Aptar's sustainability strategy, supplier engagement and collaboration, emissions-reduction efforts, science-based targets and Carbon Transition Plan, and related expectations regarding lower-carbon alternatives, circularity, supplier performance and transparency. Forward-looking statements generally can be identified by the fact that they do not relate strictly to historical or current facts and by use of words such as "expects," "anticipates," "believes," "estimates," "future," "potential," "continues," "working," "support," "advance" and other similar expressions, or future or conditional verbs such as "will," "should," "would" and "could," which are intended to identify such forward-looking statements. Forward-looking statements are made pursuant to the safe harbor provisions of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 and are based on our beliefs as well as assumptions made by and information currently available to us. Accordingly, our actual results or other events may differ materially from those expressed or implied in such forward-looking statements due to known or unknown risks and uncertainties that exist in our operations and business environment including, but not limited to: supplier participation, performance, transparency and data availability and accuracy; availability, cost and performance of lower-carbon materials, recycled materials and other alternatives; customer and consumer preferences; product performance, quality or supply chain matters; the regulatory environment, including laws, regulations, standards and reporting requirements relating to climate, emissions and sustainability matters; and competition, including technological advances. For additional information on these and other risks and uncertainties, please see our filings with the Securities and Exchange Commission, including the discussion under "Risk Factors" and "Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Form 10-K and Form 10-Qs. We undertake no obligation to update publicly any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

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Investor Relations Contact:

Mary Skafidas

mary.skafidas@aptar.com

+1 347 351 6407

Media Contact:

Katie Reardon

katie.reardon@aptar.com

815-479-5671

Aptar Named a CDP Supplier Engagement Leader for the Sixth Consecutive Year