MERCK & CO INC's ticker is and the CUSIP is 58933Y955. A total of 12 filers reported holding MERCK & CO INC in Q1 2019. The put-call ratio across all filers is - and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2018 | $718,000 | – | 94 | – | 0.10% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| SABBY MANAGEMENT, LLC | 5,234 | $29,797,000 | 1.09% |
| Timber Hill LLC | 472,300 | $26,888,000 | 0.12% |
| Allianz Asset Management GmbH | 979,400 | $55,757,000 | 0.06% |
| SG Americas Securities, LLC | 1,264,200 | $3,160,000 | 0.02% |
| Citadel Advisors | 400,800 | $22,818,000 | 0.02% |
| GROUP ONE TRADING, L.P. | 22,500 | $1,281,000 | 0.02% |
| Virtu KCG Holdings LLC | 17,000 | $968,000 | 0.02% |
| SIMPLEX TRADING, LLC | 701 | $173,000 | 0.01% |