> I believe the last notable instance was after Jobs died, AAPL was halted.
That depends on your definition of notable. You could always use the "no true Scotsman" logic to say that Steve Jobs death was the last "notable" halt but they happen all the time.
here is the Nasdaq list of halts. Notice that there have been 3 halts already today.
I believe the last notable instance was after Jobs died, AAPL was halted.