Actually, it's all legal.
It's based on a well known SEC rule.
http://en.wikipedia.org/wiki/SEC_Rule_10b5-1
The SEC explitictly OK'ed this.
After the written trading plan described in Q&A 11(a) has been in effect for several months, the person terminates the selling plan by calling the broker and canceling the limit order.
(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).
Source:
http://www.sec.gov/interps/tel...e/phonesupplement4.htm
As an aside:
The techniques outlined in the 31-page document ... are really only useful for insiders who anticipate their company shares will decline.
Many CEO's use these practices, in fact anyone with stock options should be aware of them as to maintain the value of their portfolios.