SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

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

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

Q3 2015
Shares 41,562 Value ($000) $5,774 Avg Close — Range —
Q2 2015
Shares 33,166 Value ($000) $4,621 Avg Close — Range —
Q1 2015
Shares 37,111 Value ($000) $5,131 Avg Close — Range —
Q4 2014
Shares 29,258 Value ($000) $4,016 Avg Close — Range —