TDG DEF 14A Report ended Sept. 30, 2023

Sean P. Hennessy is the retired Senior Vice President, Corporate Planning, Development & Administration of The Sherwin-Williams Company, a manufacturer, developer, distributor, and seller of paint, coatings, and related products, serving in that role from January 2017 to March 2018 in connection with the company’s integration of its Valspar acquisition. Prior to that, Mr. Hennessy served as Chief Financial Officer of The Sherwin-Williams Company from 2001 to 2016. He was formerly a certified public accountant. As a former chief financial officer of a large manufacturing public company, Mr. Hennessy’s brings a significant wealth of financial and accounting experience and expertise to his role on the Board. His insight and experience of navigating various audit complexities related to acquisitions, as well as general audit matters typical of a large public company is invaluable and critical for his service on the Board and as Chair of the Audit Committee. His experience of navigating various financial economic cycles has been and continues to be a valuable resource for TransDigm. Other Current Public Company Directorships Perimeter Solutions, SA, a NYSE-listed manufacturer of highly engineered forest fire retardant and suppressant chemicals and equipment and oil additives and operator of forest fighting stations, from November 2021. Selected Directorships And Memberships St. Edward High School Sisters of Charity Foundation of Cleveland University Hospitals Miracle Fund

Robert J. Small has been a Managing Director of Berkshire Partners LLC, a private equity investment firm, since 2000 and initially joined the firm in 1992. Since its inception in 2007, Mr. Small has been a Managing Director of Stockbridge, the public equity business unit of Berkshire Partners LLC that manages a concentrated portfolio seeking attractive long-term investments. The firm’s Stockbridge and Private Equity teams frequently collaborate and leverage their collective industry expertise across sectors. Mr. Small brings to the Board an extensive knowledge of acquisitions and capital market, business, and financial transactions, based on more than 30 years of experience in both public and private equity, as well as a breadth of board experience. Mr. Small is or has been a director of several of Berkshire Partners LLC’s portfolio companies, including having previously served as director of Hexcel Corporation, a composite materials producer primarily for aerospace applications, which is listed on the NYSE. Selected Directorships And Memberships Boys and Girls Clubs of Boston Kingsley Montessori School

W. Nicholas Howley co-founded TransDigm in 1993 and has been Chairman of the Board since 2003. He was employed as Executive Chair from 2018 to August 2021 and served as President and/or Chief Executive Officer of TransDigm from 2003 to 2018 and TransDigm Inc. from 1998 to 2018. As a TransDigm co-founder, Mr. Howley brings to the Board an extensive understanding of TransDigm’s business. Mr. Howley has played an integral role in TransDigm’s establishment and implementation of its core strategy on an ongoing basis and in its rapid and strategic growth. Other Current Public Company Directorships Perimeter Solutions, SA, a NYSE-listed manufacturer of highly engineered forest fire retardant and suppressant chemicals and equipment and oil additives and operator of forest fire fighting stations, from November 2021. Former Public Company Directorships In The Last Five Years EverArc Holdings Limited, a cash shell company listed on the London Stock Exchange, through November 2021 when it merged with Perimeter Solutions, SA. Selected Directorships And Memberships Cleveland Clinic Cristo Rey Network Drexel Education Fund Howley Foundation, Chair Rock and Roll Hall of Fame Drexel University St. Joseph Preparatory School

Michele L. Santana has been Chief Financial Officer of Arrow International since August 2024. Arrow International, a private equity owned company, is the world's largest manufacturer of charitable gaming solutions. Prior to Arrow International, Ms. Santana held the Chief Financial Officer role at Bedrock Manufacturing Company, an investment firm focusing on retail brands, from October 2021 to August 2024, Majestic Steel USA, a privately held steel company, from November 2019 to October 2021, and Signet Jewelers Limited, a NYSE-listed retail jeweler, from 2014 to 2019. Prior to becoming a Chief Financial Officer, Ms. Santana was Senior Vice President and Controller of Signet Jewelers Limited and previously had 14 years of public accounting experience at KPMG. Ms. Santana is a certified public accountant. Ms. Santana brings to the Board diverse financial and business expertise from her prior experience as a Chief Financial Officer of a large public company as well as her current experience with private equity including mergers and acquisitions. In her role as Chief Financial Officer of Bedrock Manufacturing, she also oversaw Information Technology. In addition, she has significant prior experience as a public accountant at KPMG. Selected Directorships And Memberships Akron Zoo, Chair International Women’s Forum Women Corporate Directors

Michael Graff has been a Senior Advisor at Warburg Pincus LLC, a private equity firm, since 2020. Prior to 2020, he was a Managing Director of Warburg Pincus LLC since 2003. Formerly, he was President and Chief Operating Officer of Bombardier Aerospace, an aerospace manufacturer. Mr. Graff brings knowledge of acquisitions and capital market transactions to the Board both from his time at Bombardier Aerospace and at Warburg Pincus LLC. Mr. Graff’s extensive background and expertise in the aerospace industry, coupled with his financial management and strategic planning and analysis, provides the Board with valuable insight and industry experience that he has used throughout his tenure on the Board, including guiding TransDigm through its initial public offering, the financial crisis, and the COVID-19 pandemic. Mr. Graff’s tenure on the Board and prior experience, both in aerospace and private equity, adds valuable insight and perspective that have helped TransDigm stay focused and disciplined over time as TransDigm strives to provide private equity returns with the liquidity of the public market. Mr. Graff’s management consulting background at McKinsey Company, a management consulting firm, contributes to his experience as an industry leader and demonstrates h is strategic planning and analytical acumen.

Kevin M. Stein has been Chief Executive Officer of TransDigm since April 2018 and President since January 2017. He also served as Chief Operating Officer from January 2017 to March 2018. Prior to that he was Chief Operating Officer of TransDigm’s Power and Control segment from October 2014 to December 2016. Prior to that, Mr. Stein was President of the Structurals Division and Executive Vice President of Precision Cast Parts from 2009 to 2014. Mr. Stein was appointed to the Board in connection with his promotion to Chief Executive Officer in 2018. Mr. Stein has extensive knowledge and experience in the Company’s manufacturing and aerospace operations based on his various roles within the Company. Other Current Public Company Directorships Axalta Coating Systems Ltd., a NYSE-listed manufacturer specializing in coatings in a wide variety of industrial applications, material, and sectors, including automotive paints, from September 2023. Former Public Company Directorships In The Last Five Years Perimeter Solutions, SA, a NYSE-listed manufacturer of highly engineered forest fire retardant and suppressant chemicals and equipment and oil additives and operator of forest fighting stations, from November 2021 to April 2022. Selected Directorships And Memberships Cleveland Institute of Music Gilmour Academy Greater Cleveland Sports Commission Hobart and William Smith College

Jorge L. Valladares III served as the Chief Operating Officer of TransDigm from April 2019 until his retirement in September 2023. Prior to that, Mr. Valladares served as Chief Operating Officer of the Power & Control Segment from June 2018 to March 2019, Executive Vice President from October 2013 to May 2018, as President of AvtechTyee, Inc. (formerly Avtech Corporation), a wholly-owned subsidiary of TransDigm Inc., from 2009 to 2013, and as President of AdelWiggins Group, a division of TransDigm Inc., from 2008 to 2009. Prior to that Mr. Valladares served in a variety of senior leadership, operations, sales and marketing, and engineering roles at AdelWiggins Group, since 1997. Mr. Valladares was appointed to the Board because of his all-encompassing and deep knowledge of TransDigm’s business. Specifically, Mr. Valladares has extensive knowledge of the operations of TransDigm’s industry at large. Other Current Public Company Directorships Perimeter Solutions, SA, a NYSE-listed manufacturer of highly engineered forest fire retardant and suppressant chemicals and equipment and oil additives and operator of forest fighting stations, from May 2024.

Jane M. Cronin has held the role of Senior Vice President – Enterprise Finance of The Sherwin-Williams Company, a manufacturer, developer, distributor, and seller of paint, coatings, and related products, since the beginning of January 2025. Ms. Cronin previously served as Senior Vice President – Enterprise Finance and Principal Accounting Officer from 2016 to 2024. Prior to that, Ms. Cronin held roles of increasing responsibility at The Sherwin-Williams Company, including Vice President–Internal Audit and Loss Prevention and Vice President – Controller, Diversified Brands division. Ms. Cronin’s experience with accounting and financial matters at a large public company in the manufacturing industry enables her to provide valuable insight in her role on the Board and as a member of the Audit Committee. In addition, Ms. Cronin also has experience with acquisitions and integrations, including The Sherwin-Williams Company’s acquisition of Valspar. Other Current Public Company Directorships Cleveland Cliffs Inc., a NYSE-listed manufacturer of flat-rolled steel and iron ore pellets, from January 2025. Selected Directorships and Memberships Providence House Crisis Nursery Juan and Reagan Thornhill Family Foundation

Gary E. McCullough currently serves on the board of directors of Commercial Metals Company, a steel and metal products business, and serves as an investor in, and advisor to, several private entities. He previously served as a co-chair of the Advisory Council for Legacy Acquisition Corporation, a special purpose acquisition company traded on the NYSE, until it consummated a business combination in November 2020. Mr. McCullough also previously served as Chief Executive Officer of ARI Packaging, a provider of packaging solutions, from 2014 to 2017. Prior to that, he was President and Chief Executive Officer of Career Education Corporation, a provider of career-focused learning, from 2007 to 2011, where he also served on the board of directors. Mr. McCullough previously served on the board of directors of The Sherwin-Williams Company from 2002 to 2011, where he served on the audit committee during his entire tenure and served as the audit committee chair during 2011. Mr. McCullough has also held senior executive roles at Abbott Laboratories, a healthcare products and services company, Wm. Wrigley Jr. Company, a gum and candy manufacturer, and The Procter & Gamble Company, a consumer goods manufacturer. Notably, Mr. McCullough also served as an Infantry Officer in the U.S. Army for five years, beginning as a Second Lieutenant and rising to the rank of Captain. Mr. McCullough brings vast public company leadership and board experience to the Board. Other Current Public Company Directorships Commercial Metals Company, a NYSE-listed manufacturer, recycler, fabricator and provider of steel and metal products and related materials and services, from October 2021. Selected Directorships And Memberships Rush Oak Park Hospital, Chair Rush University Medical Center Wright State University Foundation

David A. Barr has been a Managing Director of Bessemer Investors, a family-owned private capital fund, since 2017. Formerly Mr. Barr served as a Managing Director of Warburg Pincus LLC, a private equity fund, from 2001 to 2017. Mr. Barr also served as a TransDigm director from 2003 to 2011. Mr. Barr leverages his private equity leadership experience to bring a private equity philosophy to the Board consistent with TransDigm’s management approach. Mr. Barr also has extensive public company experience. He previously served on the board of Aramark, a food service and facilities services provider, helping guide them through their transition from private to public ownership. Mr. Barr has considerable experience in evaluating and establishing executive compensation at both public and private companies. Former Public Company Directorships In The Last Five Years Builders FirstSource, Inc., a NYSE-listed supplier of building products and services, through December 2020. Selected Directorships And Memberships Good Shepherd Services Board of Trustees– Wesleyan University