Share your insights or perspective on the financial matter presented in the input.

When an insider discloses a stock trade are they required to execute?
They are not required to fulfill the trade that they have intended to execute.  They are able to cancel or modify the trade at any point.  Example: This is how insiders are able to manipulate the price of shares through there buying and selling intentions.  A CEO would be able to disclose a buy order for a month from now, or whatever time period is required.  This would most likely increase the price of the stock as investors would see this as a good sign of company performance.  Up until the point when the buy order is scheduled to execute the CEO can then cancel the order and create a new sell order.  Since the stock is high in price, his new order is likely to make him money based on the manipulation from his trading intentions.   I am not an expert on the subject and only know as much as I do through personal research. Here is an interesting article about this kind of insider trading and manipulation:http://dealbook.nytimes.com/2012/12/10/the-fine-line-between-legal-and-illegal-insider-trading/?_r=0