SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

Aperio Group, LLC's Holding History (CIK: 0001364615)

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

Q3 2015
Shares 134,275 Value ($000) $18,654 Avg Close — Range —
Q2 2015
Shares 103,459 Value ($000) $14,417 Avg Close — Range —
Q1 2015
Shares 65,731 Value ($000) $9,087 Avg Close — Range —
Q4 2014
Shares 58,659 Value ($000) $8,052 Avg Close — Range —
Q3 2014
Shares 68,626 Value ($000) $9,334 Avg Close — Range —
Q2 2014
Shares 65,303 Value ($000) $6,627 Avg Close — Range —
Q1 2014
Shares 60,808 Value ($000) $5,678 Avg Close — Range —
Q4 2013
Shares 58,958 Value ($000) $5,543 Avg Close — Range —
Q3 2013
Shares 57,524 Value ($000) $4,907 Avg Close — Range —
Q2 2013
Shares 52,906 Value ($000) $4,255 Avg Close — Range —