Ambiq Micro, Inc. (AMBQ)

Fumihide Esaka has been chief executive and a director since December 2015, and chaired the board from November 2016 until July 2025. He is 62. Before Ambiq he was chief executive of Transphorm Inc. from June 2013 to November 2015, and president and chief executive of Nihon Inter Electronics Corporation from June 2010 to June 2013. The founder is still an officer: Scott Hanson, who is 42, founded the company, ran it as chief executive from January 2010 to January 2013, and has been chief technology officer since February 2013 and secretary since June 2015. He has sat on the board since January 2010. 12

Sean Chen has been president since November 2016 and is also chief operating officer. He joined as group vice president for Greater China and global operations in November 2015, held that job until October 2016, and sat on the board from November 2016 to December 2024. The proxy statement credits him with over 30 years in semiconductors, earlier at mCube, Intel, IDT and TSMC. Jeff Winzeler became chief financial officer in June 2025, coming from Kandou S.A., a semiconductor company, where he was finance chief from June 2020 to May 2025; before that he held chief financial officer and chief operating officer roles at Everspin Technologies, Avnera Corporation, Solar Power Inc. and International DisplayWorks, Inc., and senior finance posts at Intel Corporation. 34

Wen Hsieh has chaired the board since July 2025 and has been a director since November 2014. He co-founded Matter Venture Partners in January 2023 and was a general partner of Kleiner Perkins from February 2006 to January 2023, where he led its hardware practice. The newest director is Bernard B. Banks, who joined in January 2026: he runs Rice University's Doerr Institute for New Leaders, sat on the senior leadership team and faculty of Northwestern University's Kellogg School of Management from August 2016 until December 2023, and served 29 years in the United States Army, retiring as a brigadier general. Timothy Chen has been a director since November 2023, Joseph Tautges since November 2022 and Ker Zhang since January 2017. 567891011

On the insider record this site holds, ten people file Forms 3, 4 and 5 for Ambiq, and all ten have filed within the last fifteen months; the newest of them is Michele Kim Connors, the general counsel, whose first filing came in 2026. At the end of 2025 the company had 202 employees, 200 of them full time: 140 in research and development, 41 in sales and marketing and 21 in general and administrative. The engineering team sits in Austin, Texas, where the company is based, and in California, in Shanghai and Shenzhen in Mainland China, in Taiwan and in Singapore. 12131415