The microcap markets are of increasing concern to regulators, says the U.S. Attorney's Office.
IRS declares its dislike for spinoffs that are largely investment vehicles, suggesting Yahoo's Alibaba transaction would not gain tax-free status.
The banker allegedly helped Chinese companies arrange reverse mergers and then got them listed on Nasdaq by inflating shareholder numbers.
Investors "continue to trade away protections and take on more risk in search of higher yields," says a Moody's analyst.
The flurry of deals came after issuance virtually halted for nearly two weeks.
Taberna Capital Management pocketed fees it owed to CDO clients, says the SEC.
After refusing Monsanto's merger offer, Syngenta plans to sell its vegetable-seeds business, which could fetch as much as $3 billion.
The IRS won't be adopting new mortality tables issued by the Society of Actuaries until 2017.
An activist investor presses the restaurant company into a sale-leaseback transaction.
'We do not yet know the root cause of the failure, but we will be conducting a thorough analysis,' said the bank's CEO.