They were probably just approached by a buyer or someone wanting to partner with them. Look this conference has 1400 attendees from 20 different countries and 65% banking and investor attendees and the talk was only five minutes. This conference encourages partnering sessions. PGNX must have just been approached and didn't want to risk divulging any information about upcoming negotiations. It is nothing about data or the conference and someone else from PGNX could easily make the five minute appearance if there was a sudden health issue with the CEO.
Due to unforeseen circumstances beyond our control, Progenics will not be presenting at the BIO CEO Conference this afternoon.
So choose your excuse:
1) Baker has a hangover.
2) Baker missed his flight.
3) There is some new information happening, so Baker didn't want to present.
4) blah blah blah
5) yada yada yada
6) Please add your own