MERRIMACK PHARMACEUTICALS IN's ticker is and the CUSIP is 590328909. 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 | $692 | +253.1% | 56,200 | +251.2% | 0.00% | – |
| Q2 2023 | $196 | -75.6% | 16,000 | -75.6% | 0.00% | -100.0% |
| Q1 2023 | $804 | +103.0% | 65,500 | +89.3% | 0.00% | – |
| Q4 2022 | $396 | -99.2% | 34,600 | +168.2% | 0.00% | – |
| Q3 2022 | $48,000 | +37.1% | 12,900 | +118.6% | 0.00% | – |
| Q2 2022 | $35,000 | -39.7% | 5,900 | -35.9% | 0.00% | – |
| Q1 2022 | $58,000 | -3.3% | 9,200 | -40.6% | 0.00% | – |
| Q4 2021 | $60,000 | +122.2% | 15,500 | +252.3% | 0.00% | – |
| Q3 2021 | $27,000 | -3.6% | 4,400 | 0.0% | 0.00% | – |
| Q2 2021 | $28,000 | -80.0% | 4,400 | +1864.3% | 0.00% | – |
| Q1 2021 | $140,000 | -72.3% | 224 | -69.5% | 0.00% | -100.0% |
| Q4 2020 | $505,000 | +55.4% | 734 | -9.7% | 0.00% | – |
| Q3 2020 | $325,000 | +778.4% | 813 | +625.9% | 0.00% | – |
| Q2 2020 | $37,000 | +146.7% | 112 | +53.4% | 0.00% | – |
| Q1 2020 | $15,000 | +50.0% | 73 | +114.7% | 0.00% | – |
| Q4 2019 | $10,000 | -23.1% | 34 | +36.0% | 0.00% | – |
| Q3 2018 | $13,000 | -90.5% | 25 | -91.1% | 0.00% | -100.0% |
| Q2 2018 | $137,000 | – | 281 | +28000.0% | 0.00% | – |
| Q1 2018 | $0 | – | 1 | -66.7% | 0.00% | – |
| Q4 2017 | $0 | – | 3 | -97.5% | 0.00% | – |
| Q3 2017 | $0 | – | 118 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| GROUP ONE TRADING, L.P. | 107,000 | $1,315,030 | 0.01% |
| SIMPLEX TRADING, LLC | 65,500 | $804 | 0.00% |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |