This excerpt taken from the SWY DEF 14A filed Apr 4, 2007.
Transferability of Awards
Awards generally may not be sold, pledged, assigned or transferred in any manner other than by will or by the laws of descent and distribution or, subject to the consent of the administrator, pursuant to a domestic relations order, unless and until such award has been exercised, or the shares underlying such award have been issued, and all restrictions applicable to such shares have lapsed. Notwithstanding the foregoing, awards other than ISOs may also be transferred to certain family members and trusts or an entity owned by these family members and trusts with the administrators consent. Awards may be exercised, during the lifetime of the holder, only by the holder or such permitted transferee.