Among other worrisome findings, 23% of non-listed ECGs disclosed that they were shell companies.
The SEC says Desarrolladora Homex faked sales of more than 100,000 homes, on many of which it had not even broken ground.
Jeffrey Eberwein and Charles Gillman allegedly failed to properly disclose material information about their activist efforts involving five companies.
Companies would have to disclose the makeup of their inventory and the reasons for unusual changes in it.
Michael Piwowar has directed SEC staff to reconsider how companies should comply with the controversial conflict minerals rule.
Overseas Shipholding Group and its ex-CFO allegedly failed to recognize $512 million in tax liabilities over a 12-year period.
A defect in GM's internal controls allegedly prevented its accountants from learning about a safety issue for 18 months.
The SEC says the drug maker failed to timely inform investors about its merger talks with Salix and Actavis.
The SEC says the bank misreported risk-based capital ratios by excluding about $14 billion in collateralized loan obligations from its calculations.
The potential hit of several billion dollars "may further undermine confidence in company management" after its accounting scandal.