Sycamore Networks, Inc. (fka SCMR)

[flemsnopes]

What about the person who PURCHASED your shares on 9/27/12? Did the purchaser on the other side of your sell get the special dividend as well? Are you sure your broker didn't adjust the price of your 9/27/12 sell downward on Friday to reflect the special dividend? If not, then you may have found a "special" loophole. Note the following excerpt about this issue from The Motley Fool.

Some people believe that investing in a stock just before the company pays a dividend is a neat trick. This especially is prevalent for those companies that are paying a large one-time dividend, such as that TDAmeritrade one, above. They'll buy the stock, get the dividend, and then sell the stock for close to what they paid and make a nice little profit from the dividend amount. Well, no such luck. Due to the adjustment, their net profit turns out to be real close to zero. As Snidely Whiplash would mutter, "Curses! Foiled again!"

http://wiki.fool.com/Ex-dividend