Unless there are Reg FD issues
Businesses have four business days to file an 8-K for most specified items. One exception to this are Regulation Fair Disclosure (FD) requirements in Section 9 in the Investor Bulletin reporting requirements. Regulation FD requirements may be due earlier than four business days. An organization must determine if the information is material and submit the report to the SEC. The SEC makes the reports available through an electronic data gathering, analysis, and retrieval (EDGAR) platform.
And did they issue an 8k when they did not meet listing requirements
The SEC requires disclosure for numerous changes relating to a registrant's business and operations. This includes changes to a material definitive agreement or the bankruptcy of an entity. Financial information disclosure requirements include the completion of an acquisition, changes in the financial condition of an entity, disposal activities, and material impairments. The SEC mandates filing an 8-K for delisting of stock, failure to meet listing standards, unregistered sales of securities, and material modifications to shareholder rights.