MERRIMACK PHARMACEUTICALS IN's ticker is MACK and the CUSIP is 590328209. A total of 65 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q3 2023. The put-call ratio across all filers is 0.58 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $3,781,364 | +4.4% | 306,680 | +4.1% | 0.33% | +11.2% |
| Q2 2023 | $3,622,904 | +0.1% | 294,545 | 0.0% | 0.29% | -12.0% |
| Q1 2023 | $3,619,958 | +7.2% | 294,545 | 0.0% | 0.33% | +14.4% |
| Q4 2022 | $3,375,486 | +205.5% | 294,545 | 0.0% | 0.29% | +165.5% |
| Q3 2022 | $1,105,000 | -41.3% | 294,545 | -6.9% | 0.11% | -41.8% |
| Q2 2022 | $1,882,000 | +0.3% | 316,313 | +6.7% | 0.19% | +14.5% |
| Q1 2022 | $1,876,000 | +509.1% | 296,546 | +276.2% | 0.16% | +617.4% |
| Q4 2021 | $308,000 | -19.2% | 78,829 | 0.0% | 0.02% | -25.8% |
| Q3 2021 | $381,000 | -73.1% | 78,829 | -64.4% | 0.03% | -73.5% |
| Q2 2021 | $1,415,000 | +2.9% | 221,439 | +1.2% | 0.12% | -7.9% |
| Q1 2021 | $1,375,000 | +3.2% | 218,907 | +13.1% | 0.13% | +10.4% |
| Q4 2020 | $1,333,000 | +71.1% | 193,476 | -0.7% | 0.12% | +35.3% |
| Q3 2020 | $779,000 | +11.1% | 194,785 | -7.5% | 0.08% | +3.7% |
| Q2 2020 | $701,000 | -7.8% | 210,534 | -40.5% | 0.08% | -18.8% |
| Q1 2020 | $760,000 | -39.1% | 353,644 | -10.7% | 0.10% | -14.4% |
| Q4 2019 | $1,248,000 | +20.8% | 396,184 | +72.6% | 0.12% | +10.3% |
| Q3 2019 | $1,033,000 | -35.0% | 229,476 | -44.3% | 0.11% | -7.8% |
| Q4 2018 | $1,589,000 | – | 411,676 | – | 0.12% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Western Standard LLC | 1,894,013 | $23,353,180 | 21.09% |
| Newtyn Management, LLC | 1,873,694 | $23,102,647 | 5.70% |
| Sio Capital Management, LLC | 288,466 | $3,556,786 | 1.10% |
| Madison Avenue Partners, LP | 553,085 | $6,819,538 | 0.97% |
| WITTENBERG INVESTMENT MANAGEMENT, INC. | 209,739 | $2,586 | 0.95% |
| Indaba Capital Management, L.P. | 136,802 | $1,686,769 | 0.50% |
| Sepio Capital, LP | 306,680 | $3,781,364 | 0.33% |
| Yakira Capital Management, Inc. | 54,118 | $667,275 | 0.18% |
| Centiva Capital, LP | 187,803 | $2,315,611 | 0.05% |
| FIFTH LANE CAPITAL, LP | 10,929 | $134,427 | 0.05% |