Why did CXB just go up to 21 cents on 250k shares?

Did somebody here just buy the offer for $50K in shares?

 

Level ll Quote
  Bid     Ask
  Price   Total Size   # of Orders     Price   Total Size   # of Orders
$0.21 1 1   $0.22 26 1
$0.20 31 4   $0.225 1 1
$0.195 114 6   $0.23 20 2
$0.19 309 3   $0.235 5 2
$0.185 155 5   $0.24 125 4
$0.18 107 5   $0.245 10 1
$0.175 115 2   $0.25 487 3
$0.17 44 2   $0.28 345 2
$0.165 34 2   $0.30 74 3
$0.16 10 1   $0.31 20 1