Insider trading is legal so long as the insiders report those trades to the SEC. Illegal securities trading occurs when the insider is violating a fiduciary duty or fails to report their trades.

Vimeo (VMEO) shares fell sharply in their first day of trading on the Nasdaq Tuesday, after the video streaming service was spun off by media titan IAC (IAC) . Vimeo recently traded at $42.31, down 18 ...