LAYNE CHRISTENSEN CO

CUSIP: 521050104 Class: CMN

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

Note: Option positions (PUT/CALL) are excluded.

Q1 2018
Shares 19,916 Value ($000) $297 Avg Close — Range —
Q3 2017
Shares 1,370 Value ($000) $17 Avg Close — Range —
Q4 2016
Shares 16,200 Value ($000) $176 Avg Close — Range —
Q4 2015
Shares 11,142 Value ($000) $59 Avg Close — Range —