Look at the top of the 8283

Section A. Donated Property of $5,000 or Less and Publicly Traded Securities—List in this section only an item (or a group of similar items) for which you claimed a deduction of $5,000 or less. Also list publicly traded securities and certain other property even if the deduction is more than $5,000. See instructions.

So, $1,000,000 worth of Facebook stock is entered just like old socks to Goodwill.