SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

NORTHWESTERN MUTUAL INVESTMENT MANAGEMENT COMPANY, LLC's Holding History (CIK: 0001629649)

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

Q3 2015
Shares 9,898 Value ($000) $1,375 Avg Close — Range —
Q2 2015
Shares 12,489 Value ($000) $1,740 Avg Close — Range —
Q1 2015
Shares 20,468 Value ($000) $2,830 Avg Close — Range —