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 | $16,000 | +6.7% | 1,341 | +6.9% | 0.00% | – |
| Q2 2023 | $15,000 | – | 1,255 | +15587.5% | 0.00% | – |
| Q1 2023 | $0 | – | 8 | 0.0% | 0.00% | – |
| Q4 2022 | $0 | -100.0% | 8 | -99.8% | 0.00% | – |
| Q3 2022 | $13,000 | -38.1% | 3,539 | +0.9% | 0.00% | – |
| Q2 2022 | $21,000 | -4.5% | 3,508 | 0.0% | 0.00% | – |
| Q1 2022 | $22,000 | +57.1% | 3,508 | -0.3% | 0.00% | – |
| Q4 2021 | $14,000 | +40.0% | 3,517 | +75.1% | 0.00% | – |
| Q3 2021 | $10,000 | -23.1% | 2,008 | 0.0% | 0.00% | – |
| Q2 2021 | $13,000 | 0.0% | 2,008 | 0.0% | 0.00% | – |
| Q1 2021 | $13,000 | – | 2,008 | +3485.7% | 0.00% | – |
| Q4 2020 | $0 | -100.0% | 56 | -79.8% | 0.00% | – |
| Q3 2020 | $1,000 | 0.0% | 277 | -13.2% | 0.00% | – |
| Q2 2020 | $1,000 | – | 319 | -17.4% | 0.00% | – |
| Q1 2020 | $0 | – | 386 | +72.3% | 0.00% | – |
| Q4 2019 | $0 | -100.0% | 224 | +32.5% | 0.00% | – |
| Q3 2019 | $1,000 | 0.0% | 169 | +9.0% | 0.00% | – |
| Q2 2019 | $1,000 | 0.0% | 155 | 0.0% | 0.00% | – |
| Q1 2019 | $1,000 | 0.0% | 155 | 0.0% | 0.00% | – |
| Q4 2018 | $1,000 | -99.7% | 155 | -99.8% | 0.00% | – |
| Q3 2018 | $378,000 | +5.9% | 70,812 | -2.6% | 0.00% | – |
| Q2 2018 | $357,000 | -38.8% | 72,735 | +0.3% | 0.00% | – |
| Q1 2018 | $583,000 | -19.6% | 72,492 | +2.5% | 0.00% | – |
| Q4 2017 | $725,000 | -30.7% | 70,755 | -1.7% | 0.00% | -100.0% |
| Q3 2017 | $1,046,000 | – | 71,976 | – | 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% |