SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

Chevy Chase Trust Holdings, LLC's Holding History (CIK: 0001462020)

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

Q3 2015
Shares 105,703 Value ($000) $14,685 Avg Close — Range —
Q2 2015
Shares 109,618 Value ($000) $15,275 Avg Close — Range —
Q1 2015
Shares 121,651 Value ($000) $16,818 Avg Close — Range —
Q4 2014
Shares 177,338 Value ($000) $24,343 Avg Close — Range —
Q3 2014
Shares 191,496 Value ($000) $26,045 Avg Close — Range —
Q2 2014
Shares 189,087 Value ($000) $19,189 Avg Close — Range —
Q1 2014
Shares 193,275 Value ($000) $18,048 Avg Close — Range —
Q4 2013
Shares 196,567 Value ($000) $18,479 Avg Close — Range —
Q3 2013
Shares 181,321 Value ($000) $15,467 Avg Close — Range —
Q2 2013
Shares 176,382 Value ($000) $14,185 Avg Close — Range —