MERRIMACK PHARMACEUTICALS IN's ticker is and the CUSIP is 590328909. A total of 3 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q3 2023. The put-call ratio across all filers is - and the average weighting 0.0%.
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| GROUP ONE TRADING, L.P. | 17,400 | $214,542 | 0.00% |
| SIMPLEX TRADING, LLC | 56,200 | $692 | 0.00% |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |
This page lists MERRIMACK PHARMACEUTICALS IN's shareholders in Q3 2023. To view MERRIMACK PHARMACEUTICALS IN's shareholder history, click here.