If I'm not mistaken, there's an ongoing debate and a widening support for social media (FB,twitter,etc) to be considered the same "free access" communications as a PR released through marketwire.
Dunno, but regardless. FB is not considered an avenue of disseminating "insider information"
"But you shall remember the LORD your God, for it is He who is giving you power to make wealth."
Deuteronomy 8:18