SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

COMERICA BANK's Holding History (CIK: 0000901541)

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

Q3 2015
Shares 29,363 Value ($000) $4,079 Avg Close — Range —
Q2 2015
Shares 61,664 Value ($000) $8,592 Avg Close — Range —
Q1 2015
Shares 32,070 Value ($000) $4,434 Avg Close — Range —
Q4 2014
Shares 63,438 Value ($000) $8,708 Avg Close — Range —
Q3 2014
Shares 49,499 Value ($000) $6,732 Avg Close — Range —
Q2 2014
Shares 40,041 Value ($000) $4,063 Avg Close — Range —
Q1 2014
Shares 48,945 Value ($000) $4,570 Avg Close — Range —
Q4 2013
Shares 52,429 Value ($000) $4,929 Avg Close — Range —
Q3 2013
Shares 55,901 Value ($000) $4,769 Avg Close — Range —
Q2 2013
Shares 54,563 Value ($000) $4,388 Avg Close — Range —