Charles Liang: founder, chief executive and principal shareholder

analysisCharles Liang founded Super Micro Computer, Inc. (Supermicro) and has been its President, Chief Executive Officer and Chairman of the Board since the company's inception in September 1993, according to its March 2026 proxy statement. From July 1991 to August 1993 he was President and Chief Design Engineer of Micro Center Computer Inc., a motherboard design and manufacturing company. His spouse, Sara Liu, co-founded Supermicro with him and serves as its Co-Founder, Senior Vice President and a director. ¹

analysisLiang combines the posts of chairman and chief executive. Supermicro's board and Governance Committee say the combination suits the board's relatively small size and his role as founder with extensive industry experience, and the board has a lead independent director. In its fiscal 2024 annual report the company stated that it had no succession plan for replacing him if that became necessary. The lists of executive officers of March 2019 and July 2021 name him as President, Chief Executive Officer and Chairman. ^{1 2 3 4}

analysisLiang appears on each board list described in the 2011, 2020, 2023 and 2026 filings cited here: as a Class I director on the seven-member board of early 2011 and the eight-member board of 2020, on the eight-member board of May 2023, and as one of the three directors not determined to be independent, with Sara Liu and Wally Liaw, among the nine directors of March 2026. After Liaw resigned in March 2026 the board had eight members, six of them independent, with Liang and Sara Liu the other two. The 2023 proxy statement states that, apart from Liang and Sara Liu, who are married to each other, there were no family relationships among Supermicro's directors and executive officers. ^{5 6 7 1 8}

analysisTaiwan's company register lists Liang (梁見後) as a director of Super Micro Computer, Inc. Taiwan for the board term December 30, 2024 to December 29, 2027, representing the parent company, which holds all 150,000,000 of the subsidiary's shares; Sara Liu (劉秋菊) is the other director and Alex Hsu the chairman. Liang also signed Supermicro's October 30, 2024 current report on the resignation of its auditor EY, in which the company said it did not expect the matters raised by EY, or under review by the board's Special Committee, to result in any restatement of its fiscal 2024 quarterly reports or of prior fiscal years. ^{9 10 1}

analysisSupermicro reports the shares of Liang and Sara Liu as one family block, listed in full under each spouse. At December 31, 2006, before the 2007 initial public offering, the block was 10,793,700 shares, or 48.6% of the 22,223,220 shares outstanding, including options and shares in two grantor retained trusts of which Sara Liu was trustee. At December 29, 2010 it was 10,329,135 shares (25.7%), including shares held for their children and 71,000 shares of the Green Earth Charitable Trust, of which she was trustee. It was 8,330,684 shares (16.5%) at March 31, 2019, 8,307,360 shares (15.8%) at March 31, 2020 and 7,665,216 shares (14.1%) at February 28, 2023, before the 2024 stock split. ^{1 2 3 4 5}

analysisThe March 2026 proxy statement put the couple's beneficial ownership at 82,084,339 shares (13.4%) at January 31, 2026, of which 40,426,120 shares were held by Liang, 607,399 by Sara Liu and 25,672,520 jointly, plus options of both; at July 31, 2026 it was 81,772,121 shares (12.2%), including options exercisable within 60 days over 15,300,000 shares for Liang. SEC insider records list him as a director, 10 percent owner and officer (President and CEO) of Supermicro, the only issuer for which he files ownership reports. Form 4 reports show sales from the family holdings in September and October 2026: indirect sales of 42,565 and 57,435 shares on September 3 and of 100,000 shares on September 4, and Sara Liu's sale of 100,000 directly held shares on October 7, which Liang reported as an indirect holding; afterwards he held 40,426,120 shares directly. The fiscal 2017 annual report recorded two late Section 16(a) ownership reports by Liang for that year, each covering one transaction. ^{6 7 8 9 3}

analysisLiang also holds two performance stock options described in the fiscal 2024 annual report. A March 2021 award over 10,000,000 shares had fully vested by June 30, 2024 on operational and stock-price milestones. A November 2023 award over 5,000,000 shares vests in five tranches, each requiring a revenue milestone and a 60-trading-day average share price milestone, starting at $45.00 and rising to $110.00, and assumes that he remains chief executive or serves in a capacity agreed with the board; $18.9 million of its compensation cost remained to be recognized over 2.5 years. ¹⁰

analysisAblecom Technology Inc. and Compuware Technology Inc. are run by Liang's brothers. Steve Liang is chief executive and largest shareholder of Ablecom; he sat on Supermicro's board until December 31, 2005, beneficially owned about 4.5% of its stock before the 2007 offering and, according to the fiscal 2024 annual report, owned no Supermicro shares at June 30, 2022, 2023 or 2024. Bill Liang, a brother of both, is chief executive and later chairman of Compuware, holds a significant equity interest in it and sits on Ablecom's board, while Steve Liang sits on Compuware's board and holds Compuware equity. Another brother, James Liang, owns more than 10% of Aeon Lighting Technology Inc. and is its director and chief executive; Supermicro sold about $0.1 million of products to Aeon Lighting indirectly, through a systems integrator, in fiscal 2024, at market prices and on arm's length terms according to the company. ^{1 2 3 4 5 6}

analysisLiang and Sara Liu are also Ablecom shareholders. Supermicro's 2007 registration statement put their joint holding at about 30.7% of Ablecom at September 30, 2006 and said that Liang had been an Ablecom director only during Supermicro's fiscal 2006; the company's filings put the couple's joint stake at about 10.5% at June 30 of each year from 2016 to 2019 and from 2022 to 2026. A list of Ablecom's ten largest shareholders disclosed by Leadtek Research Inc. in March 2025 and April 2026 records Sara Liu (劉秋菊) with 5.59% and Liang (梁見後) with 4.87% in their own names. Neither Liang nor Sara Liu owns Compuware stock, and Supermicro itself owns no Ablecom or Compuware stock. Supermicro's fiscal 2023 annual report warns that the couple's economic interests as Ablecom stockholders and Liang's personal relationship with the chief executives of Ablecom and Compuware may disadvantage the company, which may not negotiate or enforce contract terms with Ablecom or Compuware as aggressively as with an unrelated party. ^{3 4 7 8 9 5 2 1 6 10 11}

analysisTaiwanese business magazines described the family links more broadly in 2024. In February 2024 they reported that Liang is the second of five siblings, with an elder sister and three younger brothers, Steve, Bill and James Liang, who all entered the electronics industry and became Supermicro suppliers, and that when he started Supermicro and lacked capital his elder sister and younger brothers put in savings or borrowed money and so became original shareholders; in June 2024 a magazine wrote of a “Liang Brothers” supply chain. These are press accounts. Supermicro's filings confirm that Steve, Bill and James Liang are the chief executive's brothers, but no filing reviewed lists Supermicro's founding shareholders; the 2007 registration statement does state that Steve Liang beneficially owned about 4.5% of the shares before the offering. The magazines' statements that Aeon Lighting handles chassis design or makes chassis samples for Ablecom are not reflected in the filings, which describe only the indirect fiscal 2024 sales, and the fiscal 2025 annual report states that Supermicro had no sales to and no purchases from Aeon Lighting that year. ^{12 3 13 14}

analysisOther relatives and an affiliate appear in Supermicro's related-person disclosures. Sara Liu, as Liang's spouse and a Co-Founder, Senior Vice President and director, received total compensation of $9,353,127 in fiscal 2023, including an equity gain of $8,811,517 mainly from exercising stock options. Their son, also named Bill Liang and a different person from Liang's brother of that name, worked in Supermicro's systems engineering organization in San Jose at June 30 and December 31, 2025. Supermicro also disclosed $0.5 million of sales to, and $0.1 million of purchases from, Green Earth Liang's Inc., an entity affiliated with Liang, in fiscal 2024, which it states were at market prices and on arm's length terms, and immaterial chargebacks from Green Earth in fiscal 2025. ^{5 1 6 2}

analysisA short-seller report by Hindenburg Research described Supermicro's dealings with Ablecom and Compuware, which it called controlled by Liang's brothers, as oddly circular: Supermicro provides components that the two companies assemble and sell back to it, and they rent warehousing and factory space to it. The report also said the two had been paid $983 million over three years and that about 99.8% of Ablecom's and 99.7% of Compuware's exports to the United States since 2020 went to Supermicro; those figures come from its own reading of trade records that are not among the records reviewed; Supermicro's filings themselves disclose both companies as related parties, the component, warehousing and lease arrangements, the purchase amounts and that sales to Supermicro make up a substantial majority of each company's net sales. The board's Special Committee concluded in December 2024 that the related parties identified in the report had been fully disclosed as required, were not required to be disclosed or, in one case, had become a related party during fiscal 2024 and would be disclosed in the next annual report. ^{15 2 16}

analysisIn October 2018 Liang personally borrowed approximately $12.9 million from Chien-Tsun Chang, the spouse of his brother Steve Liang. According to Supermicro's related-person disclosures, the loan was unsecured, had no maturity date and bore interest at 0.8% a month for the first six months, 0.85% a month through February 28, 2020 and 0.25% from March 1, 2020. It funded the repayment of margin loans from two financial institutions secured by his Supermicro shares, which the lenders called in October 2018 after Nasdaq suspended trading in the stock in August 2018 and the share price fell. ^{1 2}

analysisThe amount due, including accrued interest, was approximately $14.5 million at November 30, 2019, $15.7 million at June 30, 2022, $16.4 million at June 30, 2024 and $16.8 million at June 30, 2025. On October 9, 2025 the principal and the interest accrued through October 8, 2025, totaling $16.9 million, were repaid in full, and nothing was due at June 30, 2026. A Taiwanese business weekly had written in February 2024 that in 2018 a younger brother's wife lent US$12.9 million to Supermicro to help the company repay bank loans; that account differs from the filings on the borrower and purpose, which describe a personal loan to Liang to repay his own margin loans secured by Supermicro shares, not a loan to the company. ^{3 1 2 4 5}

analysisSupermicro's fiscal 2020 annual report states that its chief executive concluded a settlement with the SEC on August 25, 2020 under which he would pay the company $2,122,000 as reimbursement of profits from certain stock sales during the relevant period, under Section 304 of the Sarbanes-Oxley Act of 2002; the fiscal 2021 report states that the amount was paid in the first quarter of fiscal 2021. A September 30, 2026 order in the securities class action In re Super Micro Computer, Inc. Securities Litigation, summarising an SEC document, says that Liang agreed to reimburse Supermicro $2.1 million in stock compensation. The SEC's own document on the settlement is not among the records reviewed; the court describes the amount as stock compensation, the company as profits from stock sales, and the records contain no SEC finding of misconduct by Liang himself. ^{1 2 3}

analysisLiang has been named with Supermicro in securities suits in the U.S. District Court for the Northern District of California since 2015. The first, Deason v. Super Micro Computer, Inc., filed on September 4, 2015 against the company, Liang and its former chief financial officer, claimed misrepresentations revealed when Supermicro delayed its fiscal 2015 annual report to investigate certain marketing expenses; on June 27, 2018 the court dismissed it without leave to amend and entered judgment for the defendants, and the plaintiff's voluntary dismissal of an appeal ended the litigation on November 1, 2018. The class actions filed on February 8, 2018 (Hessefort and United Union of Roofers) alleged misrepresentations about revenue recognition; Supermicro said it believed the allegations were without merit. On March 29, 2021 the court refused to dismiss the claims against Supermicro, Liang and former chief financial officer Howard Hideshima, and the parties settled for $18,250,000, of which Supermicro funded $2,000,000, with final approval on May 5, 2023; the claims were never adjudicated on the merits. ^{1 2}

analysisTwo further sets of class actions name Supermicro, Liang and David Weigand, then chief financial officer. Suits filed from August 30, 2024, consolidated as In re Super Micro Computer, Inc. Securities Litigation with Universal-Investment-Gesellschaft mbH as lead plaintiff, also sue Liang and Weigand as controlling persons and allege that statements on the remediation of earlier internal-control weaknesses were false. On September 30, 2026 Judge Edward J. Davila dismissed the consolidated complaint with leave to amend by October 21, 2026, holding that falsity had not been pleaded with the required particularity; it was a ruling on the sufficiency of the pleadings, not a finding on the merits. A second set, beginning with Bhuva v. Super Micro Computer, Inc. on March 25, 2026 and including suits that also named a former director, makes similar allegations; the cases were consolidated on July 13, 2026 before Judge Jacqueline Scott Corley, an amended complaint was filed on October 9, 2026 and no merits ruling had been made at the cutoff. Supermicro called these matters too preliminary to judge whether an adverse outcome is probable or to estimate any loss. All are plaintiffs' allegations that no court has found to be true. ^{3 4 5 6}

analysisLiang is also an individual defendant in shareholder derivative suits brought on Supermicro's behalf, in which the company is only a nominal defendant: federal suits beginning with Hollin v. Liang, filed on September 11, 2024 against him and other current and former directors and officers and consolidated as In re Super Micro Computer, Inc. Derivative Litigation; three suits filed in November and December 2024 in the Superior Court of California, County of Santa Clara; and further suits filed from August 2025 in the Delaware Court of Chancery and the Northern District of California. They allege breaches of fiduciary duty and related claims arising from allegedly false and misleading statements. The federal case has been stayed by stipulation since November 5, 2024 and the state actions were consolidated and stayed; no court had ruled on the shareholders' allegations by September 30, 2026, and Supermicro called the matters too preliminary to judge whether an adverse outcome is probable or to estimate any possible loss. ^{7 3 8}

analysisBob K. Luong, who had accepted Supermicro's December 2012 offer to work as Director, Technology Enabler in San Jose, sued Supermicro and Liang on April 24, 2024, alleging that they retaliated against him for reporting misleading accounting practices. His administrative complaint, as quoted by the court, alleged early revenue recognition and understated expenses, concerns he said he had raised with chief financial officer Kevin Bauer, who in his account met Liang about them. On June 17, 2025 the court refused to dismiss his Sarbanes-Oxley claim, finding his administrative complaint timely and Liang adequately notified; it addressed only those procedural questions and made no finding on the allegations. The parties filed a stipulation of dismissal with prejudice on March 3, 2026, before the trial set for September 21, 2026, and the case was terminated on April 23, 2026; the docket does not disclose the terms. ^{9 10 11 12 13}