SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

OMERS ADMINISTRATION Corp's Holding History (CIK: 0001053321)

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

Q3 2015
Shares 210,000 Value ($000) $29,173 Avg Close — Range —
Q2 2015
Shares 190,500 Value ($000) $26,546 Avg Close — Range —
Q1 2015
Shares 192,800 Value ($000) $26,655 Avg Close — Range —
Q4 2014
Shares 176,500 Value ($000) $24,228 Avg Close — Range —
Q3 2014
Shares 124,400 Value ($000) $16,920 Avg Close — Range —