SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

CHARLES SCHWAB INVESTMENT MANAGEMENT INC's Holding History (CIK: 0000884546)

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

Q3 2015
Shares 304,785 Value ($000) $42,341 Avg Close — Range —
Q2 2015
Shares 301,742 Value ($000) $42,048 Avg Close — Range —
Q1 2015
Shares 291,450 Value ($000) $40,293 Avg Close — Range —
Q4 2014
Shares 281,659 Value ($000) $38,664 Avg Close — Range —
Q3 2014
Shares 266,755 Value ($000) $36,282 Avg Close — Range —
Q2 2014
Shares 261,142 Value ($000) $26,501 Avg Close — Range —
Q1 2014
Shares 255,786 Value ($000) $23,886 Avg Close — Range —
Q4 2013
Shares 248,419 Value ($000) $23,354 Avg Close — Range —
Q3 2013
Shares 242,648 Value ($000) $20,638 Avg Close — Range —
Q2 2013
Shares 232,295 Value ($000) $18,849 Avg Close — Range —