While the fate of Super Micro Computer’s listing on the Nasdaq Stock Exchange hangs in the balance, a group acquired a large stake in the embattled servers maker. Three independent broker-dealers with common ownership—G1 Execution Services,

Super Micro Computer stock (NASDAQ: SMCI) fell by about 6% in Tuesday’s trading and remains down 54% over the past month amid significant corporate governance concerns and questions about the company’s financial reporting.

Super Micro Computer Inc. faces a looming deadline to outline how it will get back in the good graces of the Nasdaq, with the server maker on thin ice as it tries to maintain its listing on the exchange.