Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

When an insider discloses a stock trade are they required to execute?
No.  And furthermore, canceling based on insider information is not considered insider trading. SEC Interpretation from October of 2000: (a) Does the act of terminating a plan while aware of material nonpublic information result in liability under Section 10(b) and Rule 10b-5? No. Section 10(b) and Rule 10b-5 apply "in connection with the purchase or sale of any security." Thus, a purchase or sale of a security must be present for liability to attach. See Blue Chip Stamps v. Manor Drug Stores, 421 U.S. 723 (1975). [link mine] A 10b5-2 is a rule in the SEC's section in federal law that governs trading on "material nonpublic information." Fried (2002) even concluded that: The SEC's safe harbour permitting insiders to buy or sell shares pursuant to prearranged trading plans while in possession of material nonpublic information and to cancel the plans while aware of material nonpublic information enables insiders to profit from their access to such information.  The SEC could easily eliminate insider's advantages over public shareholders by not allowing insiders to cancel their plans after becoming aware of material nonpublic information.