WILLIAMS CLAYTON ENERGY INC

CUSIP: 969490101 Class: CMN

SG Americas Securities, LLC's Holding History (CIK: 0001313360)

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

Q1 2017
Shares 6,163 Value ($000) $814 Avg Close — Range —
Q3 2016
Shares 1,886 Value ($000) $161 Avg Close — Range —