SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

DIMENSIONAL FUND ADVISORS LP's Holding History (CIK: 0000354204)

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

Q3 2015
Shares 170,783 Value ($000) $23,725 Avg Close — Range —
Q2 2015
Shares 170,178 Value ($000) $23,715 Avg Close — Range —
Q1 2015
Shares 171,161 Value ($000) $23,663 Avg Close — Range —
Q4 2014
Shares 171,461 Value ($000) $23,537 Avg Close — Range —
Q3 2014
Shares 171,583 Value ($000) $23,338 Avg Close — Range —
Q2 2014
Shares 165,076 Value ($000) $16,752 Avg Close — Range —
Q1 2014
Shares 167,604 Value ($000) $15,648 Avg Close — Range —
Q4 2013
Shares 165,008 Value ($000) $15,512 Avg Close — Range —
Q3 2013
Shares 159,016 Value ($000) $13,563 Avg Close — Range —
Q2 2013
Shares 149,536 Value ($000) $12,018 Avg Close — Range —