SIGMA ALDRICH CORP's ticker is and the CUSIP is 826552901. A total of 3 filers reported holding SIGMA ALDRICH CORP in Q1 2014. The put-call ratio across all filers is - and the average weighting 0.0%.
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| PEAK6 Group LLC | 31,300 | $4,257,000 | 0.03% |
| Timber Hill LLC | 45,800 | $6,229,000 | 0.03% |
| Virtu KCG Holdings LLC | 1,500 | $204,000 | 0.00% |
| Citadel Advisors | 20,700 | $2,815,000 | 0.00% |