SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

STATE OF WISCONSIN INVESTMENT BOARD's Holding History (CIK: 0000854157)

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

Q3 2015
Shares 98,230 Value ($000) $13,646 Avg Close — Range —
Q2 2015
Shares 100,710 Value ($000) $14,034 Avg Close — Range —
Q1 2015
Shares 96,130 Value ($000) $13,290 Avg Close — Range —
Q4 2014
Shares 77,716 Value ($000) $10,668 Avg Close — Range —
Q3 2014
Shares 87,426 Value ($000) $11,891 Avg Close — Range —
Q2 2014
Shares 86,836 Value ($000) $8,812 Avg Close — Range —
Q1 2014
Shares 82,016 Value ($000) $7,659 Avg Close — Range —
Q4 2013
Shares 85,956 Value ($000) $8,081 Avg Close — Range —
Q3 2013
Shares 73,486 Value ($000) $6,268 Avg Close — Range —
Q2 2013
Shares 80,346 Value ($000) $6,457 Avg Close — Range —