MERCK & CO INC's ticker is and the CUSIP is 58933Y955. A total of 6 filers reported holding MERCK & CO INC in Q2 2013. The put-call ratio across all filers is - and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2013 | $4,227,000 | – | 91,000 | – | 0.08% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Maven Securities LTD | 20,700 | $1,555,000 | 0.05% |
| GROUP ONE TRADING, L.P. | 583,300 | $43,812,000 | 0.05% |
| SG Americas Securities, LLC | 940,600 | $4,437,000 | 0.02% |
| SIMPLEX TRADING, LLC | 815,000 | $19,823,000 | 0.02% |
| JPMORGAN CHASE & CO | 1,288,320 | $96,766,000 | 0.01% |
| Allianz Asset Management GmbH | 81,400 | $6,114,000 | 0.01% |
| WELLS FARGO & COMPANY/MN | 75,200 | $5,648,000 | 0.00% |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |