SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

Invesco Ltd.'s Holding History (CIK: 0000914208)

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

Q3 2015
Shares 222,542 Value ($000) $30,915 Avg Close — Range —
Q2 2015
Shares 1,179,545 Value ($000) $164,370 Avg Close — Range —
Q1 2015
Shares 1,198,554 Value ($000) $165,700 Avg Close — Range —
Q4 2014
Shares 1,452,833 Value ($000) $199,429 Avg Close — Range —
Q3 2014
Shares 2,124,974 Value ($000) $289,018 Avg Close — Range —
Q2 2014
Shares 2,712,816 Value ($000) $275,296 Avg Close — Range —
Q1 2014
Shares 2,802,941 Value ($000) $261,740 Avg Close — Range —
Q4 2013
Shares 2,883,461 Value ($000) $271,073 Avg Close — Range —
Q3 2013
Shares 2,773,154 Value ($000) $236,549 Avg Close — Range —
Q2 2013
Shares 2,581,226 Value ($000) $207,582 Avg Close — Range —