Mary Petryszyn appointed as Non-Executive Director

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Melrose Industries PLC announced the appointment of Mary Petryszyn as a Non-Executive Director, effective January 26, 2026. Petryszyn brings over 30 years of senior executive experience in the aerospace and defence industry, including recent roles at Northrop Grumman where she oversaw significant business growth. Her extensive background in defence systems technologies, operations, and profit and loss management, coupled with her current non-executive directorships at Karman Space & Defense and Woodward, Inc., is expected to be invaluable as Melrose continues to execute its growth strategy.

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Melrose Industries PLC

26 January 2026

Melrose Industries PLC

("Melrose" or the "Company")

Mary Petryszyn appointed as Non-Executive Director

with effect from 26 January 2026

Melrose is pleased to announce the appointment of Mary Petryszyn to its Board as Non-executive Director, with effect from today.

Mary is a seasoned aerospace and defence industry leader with over 30 years of senior executive experience in defence systems technologies, operations, and profit and loss management. Between 2013 to 2023, Mary held a number of senior roles at Northrop Grumman, most recently as Corporate Vice President and President of Defence Systems. In this role, she oversaw operational execution, financial performance, and strategy development across a broad defence portfolio, driving business growth in both US and global markets. Prior to this, she held a number of senior executive roles at Singer-Link, Hughes Aircraft, and Raytheon.

As a non-executive, Mary has significant public company experience. She is currently serving as Non-executive Director at Karman Space & Defense, a concept-to-production provider for complex space and defence missions, and Woodward, Inc., a leader in energy conversion and control solutions, and has been in these roles since 2025 and 2023 respectively. Mary is also a Non-executive Director and Chair of the Audit Committee for Ericsson Federal Technologies Group, and is serving as Non-executive Director and Chair of the Compensation Committee for Saab, Inc.

Mary holds a Master of Science in Computer Engineering from Syracuse University, and a Bachelor of Science in Electrical and Computer Engineering from Clarkson University.

Chris Grigg, Chair of Melrose, said: "We are delighted to welcome Mary to the Board today. She is an accomplished aerospace and defence executive, and her wealth of experience in developing and successfully growing global defence businesses will be invaluable to Melrose as we continue to execute our strategy and drive growth."

Mary Petryszyn said: "I am pleased to be joining the Board of Melrose Industries PLC at this exciting time for the business. I look forward to working with the Board and supporting the executive team in continuing to execute Melrose's strategic plan and deliver significant value to its stakeholders."

There is no additional information required to be disclosed pursuant to Listing Rule 6.4.8R in relation to the appointment of Mary Petryszyn.

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