SIGMA ALDRICH CORP

CUSIP: 826552101 Class: COM

Paloma Partners Management Co's Holding History (CIK: 0001103882)

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

Q3 2015
Shares 349,500 Value ($000) $48,552 Avg Close — Range —
Q2 2015
Shares 182,731 Value ($000) $25,464 Avg Close — Range —
Q1 2015
Shares 31,389 Value ($000) $4,339 Avg Close — Range —
Q4 2014
Shares 30,600 Value ($000) $4,201 Avg Close — Range —
Q3 2014
Shares 178,237 Value ($000) $24,242 Avg Close — Range —
Q1 2014
Shares 2,393 Value ($000) $223 Avg Close — Range —
Q2 2013
Shares 3,644 Value ($000) $293 Avg Close — Range —