So I can't help but notice that there is no "news" or announcement at BitFunder about this. Does anyone with knowledge of pass-throughs know what we as shareholders through such services have to do in this case? Do we have to sell our shares (for less than the buyout value based on their spread), or can we just sit tight, and wait until our assets magically just disappear and our account balance goes up?
You can wait. The pass-throughs will automatically get bitcoins for all the shares they hold and will forward them to you and remove your shares.