SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

Ledyard National Bank's Holding History (CIK: 0001310658)

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

Q3 2015
Shares 550 Value ($000) $76 Avg Close — Range —
Q2 2015
Shares 550 Value ($000) $77 Avg Close — Range —
Q1 2015
Shares 580 Value ($000) $80 Avg Close — Range —
Q4 2014
Shares 580 Value ($000) $80 Avg Close — Range —
Q3 2014
Shares 580 Value ($000) $79 Avg Close — Range —
Q2 2014
Shares 490 Value ($000) $50 Avg Close — Range —
Q1 2014
Shares 490 Value ($000) $46 Avg Close — Range —
Q4 2013
Shares 400 Value ($000) $38 Avg Close — Range —
Q2 2013
Shares 400 Value ($000) $32 Avg Close — Range —