WESTERN REFNG INC

CUSIP: 959319104 Class: COM

MARSHALL WACE, LLP's Holding History (CIK: 0001318757)

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

Q4 2015
Shares 45,293 Value ($000) $1,613 Avg Close — Range —
Q1 2015
Shares 79,797 Value ($000) $3,941 Avg Close — Range —
Q4 2014
Shares 27,368 Value ($000) $1,034 Avg Close — Range —
Q3 2014
Shares 6,125 Value ($000) $257 Avg Close — Range —
Q2 2014
Shares 6,125 Value ($000) $230 Avg Close — Range —
Q1 2014
Shares 29,473 Value ($000) $1,137 Avg Close — Range —