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Mr. Doogue has served as our President and Chief Executive Officer and as a member of our Board since February 2025. Mr. Doogue joined Allegro in 1998 as a Design Engineer facilitating the development of our innovative magnetic sensor integrated circuits. Since joining, he has worked in a number of leadership roles and has been instrumental in shaping our strategy, developing our technology roadmap and creating new, innovative products that drive customer value. Mr. Doogue has enabled our disruptive technologies and business lines through his leadership roles as Director of Strategic Marketing, Vice President of Advanced Sensor Technologies, Senior Vice President of Technology and Products and, most recently, Executive Vice President (EVP) and Chief Technology Officer (CTO). In his role as EVP and CTO, Mr. Doogue led Allegro's technology development and worldwide operations organizations, which includes the wafer technology development, manufacturing, supply chain, procurement and quality teams. Mr. Doogue earned his B.A. in Physics from Colby College, B.E. in Electrical Engineering from Dartmouth and completed the SEP program at the Stanford University Graduate Business School. He holds over 75 semiconductor-related U.S. patents.

Richard A. Madormo joined the Company as our Senior Vice President of Worldwide Sales in March 2025 with over 25 years of sales experience in the semiconductor industry. Prior to joining Allegro, Mr. Madormo served as the SVP, Global Sales and Marketing at Wolfspeed, Inc. (Wolfspeed), having joined the company in August 2018 as Vice President of North American Sales. Before joining Wolfspeed, Mr. Madormo held sales leadership positions at Intel Corporation and Altera Corporation. Mr. Madormo holds a degree in electrical engineering technology from The University of Akron.

Mr. Martin has served as a member of our Board since 2017 and was our Board's Lead Independent Director from September 2024 until he became Board Chair in August 2025. Previously, he served as Co-Chairman of Fairchild Semiconductor Corporation, and prior to that as its Senior Executive Vice President and Chief Financial Officer. He also served as the Vice Chairman of Fairchild's board of directors. Mr. Martin has also previously served on the board of directors of other public companies, including Azenta Inc. (Chairman), Bionik Labs, ChipPac Inc. (chair of the Audit Committee), Collectors Universe (chair of the Nominating and Governance Committee) and Soitec Semiconductor (chair of the Audit Committee). Mr. Martin also serves on the board of trustees of Embry-Riddle Aeronautical University. Mr. Martin received a B.S. in Aeronautics in 1974 and was awarded an honorary Ph.D. in 2018, both from Embry-Riddle Aeronautical University. Mr. Martin received an M.B.A. from the University of Maine in 1976. Mr. Martin holds an Executive Master's Professional Certification from the American College of Corporate Directors, a director education and credentialing organization. PAST FIVE YEARS: Azenta Inc. (until February 2024); Bionik Labs (until 2023)

Ms. Lynch has served as a member of our Board since 2021. From August 2019 to September 2023, Ms. Lynch served as the Senior Vice President and Chief Financial Officer at V2X (formerly Vectrus, Inc.). From April 2016 to July 2019, Ms. Lynch was the Executive Vice President and Chief Financial Officer for Sungard Availability Services, which was involved in a lender negotiated Chapter 11 bankruptcy restructuring in May of 2019. Before joining Sungard AS, from 2007 to 2015, Ms. Lynch was the Executive Vice President and Chief Financial Officer for Hitachi Data Systems (now Hitachi Vantara). From 2005 to 2007, Ms. Lynch was Vice President and Chief Financial Officer of Raytheon Technical Services. Before joining Raytheon, Ms. Lynch held a number of roles of increasing financial responsibility with Honeywell International Inc. from 1984 to 2005. Ms. Lynch is a member of the National Association of Corporate Directors and also serves on the boards of Onto Innovation, Inc. (Audit Chair and M&A Committee) and The Crane Co. (Audit Committee). She is also a certified public accountant (inactive since December 2023). Ms. Lynch was named Greater Washington Technology Public Company CFO of the Year in 2023. Ms. Lynch received her B.A. in accounting and business administration from MidAmerica Nazarene University. Other Public Company Boards- Onto Innovation Inc.; The Crane Co. Ms. Susan D. Lynch will resign and not standing for reelection effective on Company's 2026 Annual Meeting of Stockholders to be held on August 5, 2026.

Ms. Puma has served as a member of our Board since October 2023. Ms. Puma has more than 40 years of technology experience, including more than 25 years in the semiconductor industry. Ms. Puma served as an Executive Advisor at Axcelis Technologies, Inc. (Axcelis) from May 2024 to July 2025, after serving as the Executive Chairperson of Axcelis from May 2023 until May 2024 and as the President and Chief Executive Officer of Axcelis from January 2002 to May 2023. Prior to becoming CEO of Axcelis, she served as the company's President and Chief Operating Officer beginning in July 2000. Ms. Puma also served as Chairperson of the Board of Axcelis from 2005 to 2015. In 1998, Ms. Puma was appointed General Manager and Vice President of Axcelis' predecessor, the Implant Systems Division of Eaton Corporation, a global diversified industrial manufacturer, after having joined in 1996 as general manager of Eaton's Commercial Controls Division. Prior to Eaton, Ms. Puma spent 15 years in various marketing and general management positions at General Electric Company. Ms. Puma currently serves on the boards of Entegris, Inc., Ciena Corporation, and Penguin Solutions, Inc. (formerly SMART Global Holdings, Inc.). Ms. Puma was a member of the board of directors of Nordson Corporation from July 2001 until November 2023. Ms. Puma also served for 20 years on the board of directors of Semiconductor Equipment and Materials International (SEMI), a global industry association serving the manufacturing supply chain for the micro- and nano-electronics industries, and served as Chairperson of the board of directors of SEMI from December 2022 to May 2025. Ms. Puma holds a B.A. in Economics from Tufts University and a Master of Science degree from the MIT Sloan School of Management. CURRENT: Entegris, Inc.; Ciena Corporation; Penguin Solutions, Inc. (formerly SMART Global Holdings, Inc.) PAST FIVE YEARS: Axcelis Technologies, Inc. (until May 2024); Nordson Corporation (until November 2023)

Ms. Raubacher has served as a member of our Board since April 2024. Ms. Raubacher has over 25 years' experience in investment banking focused on the semiconductor, technology and telecom sectors, and has advised numerous C-suite executives and boards of directors around the world on strategic and financing transactions. Ms. Raubacher served as Managing Director at Wells Fargo & Company (Wells Fargo) and led Wells Fargo's global semiconductor and electronics investment banking practice from 2011 until March 2024. Prior to joining Wells Fargo in 2011, Ms. Raubacher was an investment banker focused on the technology, media and telecom sectors from 1998 to 2011 at Lehman Brothers Inc. and Barclays Capital Inc. (following its acquisition of Lehman Brothers). Ms. Raubacher serves on the Women's Leadership Council of the GSA (Global Semiconductor Alliance). Ms. Raubacher received her A.B. magna cum laude from Harvard University and her M.B.A. from Stanford University.

Mr. Lury has served as a member of our Board since 2007. Mr. Lury served on the board of directors of Sanken and various committees from June 2015 to June 2022. Mr. Lury also served on the board of directors of Kanadevia Corporation (formerly Hitachi Zosen Corporation), a Japanese industrial and engineering corporation, from June 2016 to June 2024. Mr. Lury was previously a partner at Kelley Drye & Warren LLP, a New York-based law firm, which he joined in September 1989 and at which he practiced as a member of the Corporate Department and Chair of the Japan Practice Group until his retirement from the firm in 2015. Although retired, Mr. Lury retains Life Partner status with the firm. Mr. Lury received his B.A. in Political Science and International Relations from the University of Pennsylvania in 1969. Mr. Lury received his J.D. from Syracuse University College of Law in 1972. Past Five Years: Kanadevia Corporation (formerly Hitachi Zosen Corporation) (until June 2024); Sanken Electric Co., Ltd. (until June 2022). Mr. Richard R. Lury will resign and not standing for reelection effective on Company's 2026 Annual Meeting of Stockholders to be held on August 5, 2026 .

Mr. Suzuki has served as a member of our Board since 2001. He served as our Chairman of the Board from 2018 to August 2025. Mr. Suzuki was a director and Senior Vice President at Sanken from July 2013 until his retirement in June 2022. Over his more than 40-year career with Sanken and its affiliates, which began in 1982, he held numerous senior leadership and general management roles, including Chief Executive Officer of Sanken North America, Inc. He has also served on the boards of multiple Sanken group companies. From July 2005 until his retirement in May 2022, Mr. Suzuki served as Chairman and Chief Executive Officer of Polar Semiconductor, LLC (PSL). He was also a member of the board of directors of PSL and its predecessor entity throughout this period. Following his retirement, he continued to contribute to PSL as a consultant from July 2022 through March 2025. Beyond his corporate leadership roles, Mr. Suzuki has been active in academic and advisory capacities. He has served as an Honorary Advisor at the Institute of Management Studies in Japan since January 2024. In addition, since January 2025, he has been a Visiting Professor at the Research Institute of Electronics at Shizuoka University. Mr. Suzuki received his B.S. in Physics and Engineering Science from Chuo University, Tokyo, Japan in 1982. PAST FIVE YEARS: Sanken Electric Co., Ltd. (until June 2022)

Mr. Kawashima has served as a member of our Board since June 2022. Mr. Kawashima has also served as a member of the board of directors of Sanken since June 2022, and since April 2022, as Head of Corporate Design at Sanken. Mr. Kawashima has also served as a Senior Vice President of Sanken since June 2023. Prior to that, he was a Senior Corporate Officer of Sanken from June 2022 to June 2023, and a Corporate Officer of Sanken from June 2021 to June 2022. From April 2021 to March 2022, Mr. Kawashima served as Director of the General Affairs and Human Resources Division at Sanken, and from April 2018 to March 2021, he was the Deputy Director of this same division. Prior to joining Sanken, he was Senior Manager of the Market Planning Division of Resona Holdings, Inc. from April 2016 to March 2018. Mr. Kawashima also serves on the board of directors of a number of Sanken affiliates. Mr. Kawashima received his B.S. in Physics from Tokyo University of Science, Tokyo, Japan in 1989. OTHER PUBLIC COMPANY BOARDS CURRENT: Sanken Electric Co., Ltd.

Mr. White's appointed to the Board effective on June 17, 2026. Mr. White is an accomplished executive and board director with over 30 years of leadership experience in the semiconductor and high-technology industries. He has expertise in financial strategy, public-company governance, and corporate development, having served as Chief Financial Officer for several publicly traded semiconductor companies, including Ambarella, Inc., Maxim Integrated Products, Inc., and Integrated Device Technology, Inc. In addition to Allegro, Mr. White currently serves on the board of FormFactor, Inc., where he is the Chair of the Audit Committee. Mr. White holds an MBA in Finance and International Business from the University of Notre Dame and a Bachelor of Arts in Business Administration from Seattle University.

Ian Kent has over 25 years of operational experience in the semiconductor industry and was named Allegro's Senior Vice President, Operations in January 2026. He joined Allegro in September 2023 and has held progressively senior roles in operations, including Senior Director of IC Packaging, and most recently, Vice President Operations. Prior to joining Allegro, he served as Vice President, Operations at Renesas, Inc. from August 2021 until September 2023. Before joining Renesas, he held technical leadership positions at Dialog Semiconductor beginning in August 2008 before its acquisition by Renesas in 2021. Mr. Kent holds an Electronic Engineering Technology apprenticeship and HNC from The University of Wales, Pontypridd.

Erin E. Hagen joined the Company as our Senior Vice President and Chief Human Resources Officer in May 2024. Prior to joining Allegro, Ms. Hagen served as Global Human Resources Business Partner for Cabot Corporation, a leading global specialty chemicals and performance materials company, from January 2021 until May 2024. Prior to that, she served as Chief Human Resources Officer for Wind River Environmental, LLC, a septic, grease, and wastewater services company, from 2019 through 2021. From 2014 through 2019, Ms. Hagen worked for OMNOVA Solutions Inc., a developer and manufacturer of emulsion polymers, specialty chemicals and building products in roles of increasing responsibility within the human resources organization. Ms. Hagen holds an M.S. in Positive Organization Development and Change from Case Western Reserve University and a bachelor's degree in organizational communications from Central Michigan University.

On February 16, 2023, the Board of Directors of the Companyappointed Roald G. Webster to serve as Vice President, Chief Accounting Officer of the Company, effective March 20, 2023. Mr. Webster, is a certified professional accountant with over 20 years of accounting experience. Prior to joining the Company, Mr. Webster served as Vice President and Corporate Controller at Bruker Corporation (Bruker), a publicly traded developer, manufacturer and distributor of high-performance scientific instruments and analytical and diagnostic solutions, from April 2018 to the present and as Director of Corporate Accounting from April 2017 through April 2018. Prior to Bruker, Mr. Webster served as Director of Financial Reporting and Technical Accounting at Agios Pharmaceuticals, Inc., a publicly traded pharmaceutical company, from November 2013 through April 2017. Earlier in his career, Mr. Webster held positions as an audit Senior Manager at Deloitte Touche Tohmatsu Limited, an Audit Director at RSM US LLP, and as an audit manager at Feeley & Driscoll, P.C. Mr. Webster is a graduate of Boston College Carroll School of Management and of Bentley College, where he earned a B.S. in accountancy.

Mr. Willett's appointmented to the Board effective on May 13, 2026. Most notably, he spent 14 years as Chief Executive Officer of Cognex Corporation, a global leader in machine vision systems and sensors. During his tenure, he successfully scaled the business, drove sustained organic growth, and navigated complex global operations. Mr. Willett currently serves on the board of directors for Clean Harbors, Inc., a publicly traded industrial and environmental services company, and Formlabs, a private industrial 3D printing company. Mr. Willett holds a bachelor's degree from Brown University and an MBA from Yale University.