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Understanding the Nasdaq insider trading information
Insiders are prevented from buying or selling shares except at certain periods right after information is disclosed publicly. But. People have bills to pay and kids to put through college and whatnot. So an insider can set up a plan where shares are sold on a specific schedule and they have no control over number of shares or timing. These plans (covered under rule 10b5-1) allow insiders to generate cash flow without immoderately benefiting from their inside information. Sales under these plans can mostly be ignored when trying to figure out the fortunes of a company from insider trades.