What does a Proxy authorize the Proxy holder to do?

A proxy authorized the proxy holder to vote on the resolutions contained in the notice of the meeting for which he holds the proxy. This is usually to vote yes, no, or to abstain. As the Owner could not know of the content of any discussions and resolutions not contained in the notice, it cannot instruct the proxy holder ahead of time and the proxy holder is not authorized to vote on those resolutions (except of course if he obtains instruction on how to vote)