MERRIMACK PHARMACEUTICALS IN's ticker is MACK and the CUSIP is 590328209. A total of 48 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q4 2019. The put-call ratio across all filers is 1.14 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $14,352 | -89.0% | 1,164 | -89.0% | 0.00% | -100.0% |
| Q2 2023 | $129,974 | +866393.3% | 10,567 | +755.6% | 0.00% | – |
| Q1 2023 | $15 | -59.5% | 1,235 | -61.9% | 0.00% | -100.0% |
| Q4 2022 | $37 | -96.3% | 3,242 | +1652.4% | 0.00% | – |
| Q3 2022 | $1,000 | – | 185 | +208.3% | 0.00% | – |
| Q2 2022 | $0 | -100.0% | 60 | -68.9% | 0.00% | – |
| Q1 2022 | $1,000 | -50.0% | 193 | -69.3% | 0.00% | – |
| Q4 2021 | $2,000 | – | 628 | +837.3% | 0.00% | – |
| Q3 2021 | $0 | -100.0% | 67 | -97.4% | 0.00% | – |
| Q1 2021 | $16,000 | +23.1% | 2,579 | +32.4% | 0.00% | – |
| Q4 2020 | $13,000 | +550.0% | 1,948 | +290.4% | 0.00% | – |
| Q3 2020 | $2,000 | 0.0% | 499 | -35.4% | 0.00% | – |
| Q1 2020 | $2,000 | -75.0% | 773 | -69.5% | 0.00% | -100.0% |
| Q4 2019 | $8,000 | -38.5% | 2,533 | -10.9% | 0.00% | 0.0% |
| Q3 2019 | $13,000 | -35.0% | 2,842 | -13.8% | 0.00% | 0.0% |
| Q2 2019 | $20,000 | +233.3% | 3,297 | +291.1% | 0.00% | – |
| Q1 2019 | $6,000 | -91.8% | 843 | -95.6% | 0.00% | -100.0% |
| Q4 2018 | $73,000 | -15.1% | 19,063 | +18.9% | 0.01% | -16.7% |
| Q3 2018 | $86,000 | +138.9% | 16,028 | +122.1% | 0.01% | +200.0% |
| Q2 2018 | $36,000 | +157.1% | 7,215 | +306.9% | 0.00% | +100.0% |
| Q1 2018 | $14,000 | -72.0% | 1,773 | -48.7% | 0.00% | -75.0% |
| Q3 2017 | $50,000 | – | 3,453 | – | 0.00% | – |
Download | ||||||
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% |