The SEC says two former executives of eAgency claimed they owned millions of dollars of stock warrants in the mobile security company.
The executive and a former Logitech controller are accused of inflating the company's operating income in fiscal 2011.
A former analyst at a New York hedge fund traded on information about Apollo Global Management's buyout of ADT.
The SEC says Ken Paxton hyped Servergy to investors without disclosing he had been paid for his promotional efforts.
Scams in which fraudsters pose as company executives have caused more than $2.3 billion in losses to businesses since October 2013.
A Deloitte poll finds only 29.3% of organizations use analytics to mitigate supply chain fraud and financial risks.
The SEC says the company misled investors about its efforts to show compliance with emission standards.
A controller and chief legal officer also played 'integral roles' in the scheme, says the SEC.
The ex-CFO of Aveo Pharmaceuticals and other top executives allegedly failed to disclose FDA concerns about an experimental cancer drug.
The SEC says Tobin Smith made false statements about a penny stock company and failed to fully disclose his compensation.