Well perhaps your broker is still taking orders but they will have to stop at some point to change it over. Why doesn't someone all their broker and ask? I can't because im in work.
It is closed. On iWeb the price has a *** beside it which means market of quotation is closed. Can't get a price for PMA or PGR. How do you expect them to change the ticker over without closing the market? They will consolidate and close their books on the PMA ticker and then open the new book for PGR.