MERRIMACK PHARMACEUTICALS IN's ticker is and the CUSIP is 590328959. 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%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $7 | -46.2% | 600 | -45.5% | 0.00% | – |
| Q2 2023 | $13 | -98.8% | 1,100 | -98.7% | 0.00% | -100.0% |
| Q1 2023 | $1,059 | +43.1% | 86,200 | +33.4% | 0.00% | 0.0% |
| Q4 2022 | $740 | -96.6% | 64,600 | +994.9% | 0.00% | – |
| Q3 2022 | $22,000 | -73.2% | 5,900 | -57.6% | 0.00% | – |
| Q2 2022 | $82,000 | -21.2% | 13,900 | -15.8% | 0.00% | – |
| Q1 2022 | $104,000 | +1385.7% | 16,500 | +768.4% | 0.00% | – |
| Q4 2021 | $7,000 | – | 1,900 | +1800.0% | 0.00% | – |
| Q3 2021 | $0 | – | 100 | 0.0% | 0.00% | – |
| Q2 2021 | $0 | -100.0% | 100 | +566.7% | 0.00% | – |
| Q1 2021 | $9,000 | -87.0% | 15 | -85.1% | 0.00% | – |
| Q4 2020 | $69,000 | +360.0% | 101 | +159.0% | 0.00% | – |
| Q3 2020 | $15,000 | 0.0% | 39 | -45.1% | 0.00% | – |
| Q1 2020 | $15,000 | -37.5% | 71 | -9.0% | 0.00% | – |
| Q4 2019 | $24,000 | +500.0% | 78 | +680.0% | 0.00% | – |
| Q3 2019 | $4,000 | +100.0% | 10 | +100.0% | 0.00% | – |
| Q3 2018 | $2,000 | +100.0% | 5 | +25.0% | 0.00% | – |
| Q2 2018 | $1,000 | – | 4 | +300.0% | 0.00% | – |
| Q1 2018 | $0 | -100.0% | 1 | -91.7% | 0.00% | – |
| Q4 2017 | $4,000 | – | 12 | – | 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% |