MERRIMACK PHARMACEUTICALS IN's ticker is and the CUSIP is 590328959. A total of 3 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q1 2023. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $8,631 | -73.0% | 700 | -73.1% | 0.00% | – |
| Q1 2023 | $31,954 | -85.4% | 2,600 | -86.4% | 0.00% | -100.0% |
| Q4 2022 | $218,886 | +563.3% | 19,100 | +241.1% | 0.00% | – |
| Q2 2022 | $33,000 | +312.5% | 5,600 | +366.7% | 0.00% | – |
| Q1 2022 | $8,000 | -98.3% | 1,200 | -98.8% | 0.00% | -100.0% |
| Q3 2021 | $476,000 | +11800.0% | 98,500 | +16316.7% | 0.00% | – |
| Q4 2020 | $4,000 | -50.0% | 600 | -71.4% | 0.00% | – |
| Q3 2020 | $8,000 | -71.4% | 2,100 | -76.7% | 0.00% | – |
| Q4 2019 | $28,000 | +250.0% | 9,000 | +650.0% | 0.00% | – |
| Q1 2019 | $8,000 | +300.0% | 1,200 | +300.0% | 0.00% | – |
| Q3 2018 | $2,000 | -97.1% | 300 | -97.8% | 0.00% | -100.0% |
| Q2 2018 | $68,000 | – | 13,800 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| SIMPLEX TRADING, LLC | 86,200 | $1,059 | 0.00% |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |
| GROUP ONE TRADING, L.P. | 2,600 | $31,954 | 0.00% |