At first you look at these .28 trades...it looks like one account (they stole the shares from the crash) passed shares to another account (they previous shorted position) to cover...of course all from MMs. But later it pops all the way to .317 & back down to .295 range (a couple hundred 1000s shares were stolen from happy flippers)...then they turned around fill these orders @ .33+, then the pops start there til the bells. I believe some big $$$ was buying on leak news (possibly)...ZBH'share price has been up for the past 3 weeks straight.
Blackrock added 16 mils shares on ZBH (valued almost about $2 BILLIONS!)