SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

ARMSTRONG HENRY H ASSOCIATES INC's Holding History (CIK: 0001056827)

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

Q3 2015
Shares 3,590 Value ($000) $499 Avg Close — Range —
Q2 2015
Shares 3,590 Value ($000) $500 Avg Close — Range —
Q1 2015
Shares 3,590 Value ($000) $496 Avg Close — Range —
Q4 2014
Shares 3,500 Value ($000) $480 Avg Close — Range —
Q3 2014
Shares 3,500 Value ($000) $476 Avg Close — Range —
Q2 2014
Shares 3,500 Value ($000) $355 Avg Close — Range —
Q1 2014
Shares 3,500 Value ($000) $327 Avg Close — Range —
Q4 2013
Shares 3,500 Value ($000) $329 Avg Close — Range —