SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

NISA INVESTMENT ADVISORS, LLC's Holding History (CIK: 0000937615)

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

Q3 2015
Shares 32,195 Value ($000) $4,473 Avg Close — Range —
Q2 2015
Shares 33,195 Value ($000) $4,626 Avg Close — Range —
Q1 2015
Shares 34,795 Value ($000) $4,810 Avg Close — Range —
Q4 2014
Shares 34,795 Value ($000) $4,776 Avg Close — Range —
Q3 2014
Shares 35,245 Value ($000) $4,794 Avg Close — Range —
Q2 2014
Shares 35,645 Value ($000) $3,617 Avg Close — Range —
Q1 2014
Shares 36,945 Value ($000) $3,450 Avg Close — Range —
Q4 2013
Shares 35,945 Value ($000) $3,379 Avg Close — Range —
Q3 2013
Shares 37,245 Value ($000) $3,177 Avg Close — Range —
Q2 2013
Shares 38,245 Value ($000) $3,076 Avg Close — Range —