Whats up with the little parcels of 42/43 shares every 3-4...

Whats up with the little parcels of 42/43 shares every 3-4 minutes? Interesting bot strategy.

01:32:47 PM 0.140 41 5.74
01:29:47 PM 0.140 42 5.88
01:28:07 PM 0.140 100,000 14,000.00
01:27:06 PM 0.140 35,000 4,900.00
01:26:41 PM 0.140 43 6.02
01:24:45 PM 0.140 63,797 8,931.58
01:24:45 PM 0.140 1,203 168.42
01:24:10 PM 0.140 30,000 4,200.00
01:24:07 PM 0.140 300,000 42,000.00
01:24:02 PM 0.140 130,000 18,200.00
01:23:29 PM 0.140 44 6.16
01:23:24 PM 0.140 77,428 10,839.92
01:21:17 PM 0.140 100,000 14,000.00
01:19:44 PM 0.140 42 5.88
01:19:40 PM 0.140 140,000 19,600.00
01:18:32 PM 0.140 150,000 21,000.00
01:16:41 PM 0.140 42 5.88
01:15:32 PM 0.140 139,007 19,460.98