Monolithic Power Systems, Inc. (MPWR)

Michael Hsing founded Monolithic Power Systems in 1997 and has run it ever since, as president, chief executive and chairman of the board; he took the company public in 2004. Before founding it he was a senior silicon technology developer at several analog chip companies, where he developed and patented process technologies. The board keeps a lead independent director beside him, Herbert Chang, who has sat on it since September 1999. On the insider record this site holds, fifteen people have filed ownership forms for the company and twelve of them filed in the last fifteen months; Hsing's own first filing was in 2006, the first year the SEC's data sets reach. 1234

Four other executive officers are named in the annual report, and the finance seat changed with it. Bernie Blegen had been chief financial officer since July 2016, after serving as corporate controller from August 2011 to March 2016 and as interim finance chief until that July; the report says that immediately after it was filed he would cease to serve, and that Rob Dean, the corporate controller, would take over as interim chief financial officer. Deming Xiao, executive vice president for global operations, joined in May 2001 and has been president of Asia operations since January 2008. Maurice Sciammas, who runs worldwide sales and marketing, joined in July 1999 from Supertex, where he had been director of IC products from 1990. Saria Tseng has been general counsel and corporate secretary since 2004 and took on strategic corporate development in 2009. 567894

The board has seven members and six of them are independent: Herbert Chang, Eugen Elmiger, Victor K. Lee, Carintia Martinez, Eileen Wynne and Jeff Zhou. They are long serving, and drawn from the trades the company sells into. Chang, the lead independent director, has been on the board since September 1999 and is a venture capitalist. Lee joined in September 2006 and was finance chief of Ambarella. Zhou joined in February 2010 and ran MiaSole, a thin film solar business. Elmiger joined in October 2012 and runs maxon Group, which makes precision electric drives. Martinez joined in May 2021 and is chief digital information officer at Automotive Cells Company, a battery developer. Wynne joined in February 2023 and worked at Analog Devices, a rival the company names, from November 1999 to June 2019, ending as its chief accounting officer. 21011121314151617

At the end of 2025 the company employed 4,501 people across Asia, Europe and the United States, up from 4,017 a year before; the annual report gives no split by job. Some employees are covered by collective bargaining agreements, and it says it has never had a work stoppage or strike. Its largest testing plants are in Chengdu, China. Its property is mostly abroad and mostly owned: of the buildings over ten thousand square feet it counts, it owns 1,189,000 square feet, 973,000 of that outside the United States, and leases 492,000 more. 181920