SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

NICHOLS & PRATT ADVISERS LLP /MA's Holding History (CIK: 0001141781)

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

Q1 2015
Shares 16,200 Value ($000) $2,240 Avg Close — Range —
Q4 2014
Shares 135,426 Value ($000) $18,590 Avg Close — Range —
Q3 2014
Shares 137,926 Value ($000) $18,758 Avg Close — Range —
Q2 2014
Shares 139,851 Value ($000) $14,204 Avg Close — Range —
Q1 2014
Shares 139,251 Value ($000) $13,022 Avg Close — Range —
Q4 2013
Shares 129,201 Value ($000) $12,146 Avg Close — Range —
Q3 2013
Shares 128,976 Value ($000) $10,997 Avg Close — Range —
Q2 2013
Shares 131,896 Value ($000) $10,618 Avg Close — Range —