Super Micro Computer has finally filled its finance chief post, naming Mark Long as chief financial officer effective immediately, according to the company.
Long replaced David Weigand on Wednesday. Supermicro had committed in December 2024 to begin searching 'immediately' for a replacement after a board-level independent investigation.
Long arrives with experience at Western Digital, where he served as CFO and chief strategy officer, and with Prime Impact Capital, the investment and advisory firm he runs. He also served as co-CEO and CFO of a SPAC he co-founded that raised $300 million before merging in 2023 with Cheche Technology, a Beijing-based auto insurance technology platform.
The move comes as Supermicro works through a difficult stretch tied to both governance and legal scrutiny. In March, the Department of Justice and FBI indicted and arrested co-founder Yih-Shyan 'Wally' Liaw in a smuggling case allegedly involving $2.5 billion of Supermicro hardware loaded with Nvidia's export-controlled chips being illegally routed to China.
According to the company, Liaw and two others associated with Supermicro were alleged to have used hairdryers to remove and replace sticky labels and staged thousands of dummy servers that were non-working physical replicas of actual Supermicro servers, because the real servers had already been diverted to China.
Supermicro is not named as a defendant in the case and says it is cooperating with law enforcement. Liaw has pleaded not guilty. His arrest also triggered another board-led internal investigation, separate from the earlier probe that led to the CFO search.
Supermicro said in August that it found no evidence that current members of senior management knew about the smuggling scheme.
Since Liaw's March 2026 arrest, Supermicro has disclosed a grand jury subpoena from the U.S. Attorney's Office for the Southern District of New York related to Liaw's indictment and the company's compliance program and internal controls. It has also received subpoenas and inquiries from foreign authorities, the Securities & Exchange Commission, and the Bureau of Industry and Security.
The company has already lived through one SEC case. Liaw had previously left Supermicro in the middle of an internal audit committee investigation just before a 2018 SEC probe charged Supermicro and its then-CFO with improper revenue recognition practices. Supermicro settled those charges and paid a $17.5 million settlement in 2020.
Long's appointment may help Supermicro steady a finance function that has been under a cloud for two years, but the market will still judge the company on compliance, controls and execution. Capital rewards clear rules, not excuses.
That makes this more than a routine hire. For investors, the question is whether Supermicro can convert a new CFO into restored credibility, or whether legal overhangs and regulatory scrutiny will keep weighing on the business and the taxpayer-adjacent machinery of enforcement around it.
