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 | $430,971 | +147.8% | 34,953 | +147.2% | 0.00% | – |
| Q2 2023 | $173,947 | -59.4% | 14,142 | -59.5% | 0.00% | – |
| Q1 2023 | $428,896 | +164.6% | 34,898 | +146.8% | 0.00% | – |
| Q4 2022 | $162,067 | +92.9% | 14,142 | 0.0% | 0.00% | – |
| Q2 2022 | $84,000 | -54.3% | 14,142 | -46.5% | 0.00% | – |
| Q1 2019 | $184,000 | +80.4% | 26,414 | -0.3% | 0.00% | – |
| Q4 2018 | $102,000 | -73.6% | 26,495 | -63.5% | 0.00% | – |
| Q3 2018 | $387,000 | -42.2% | 72,684 | -46.7% | 0.00% | – |
| Q2 2018 | $669,000 | +188.4% | 136,241 | +372.3% | 0.00% | – |
| Q1 2018 | $232,000 | -41.4% | 28,846 | -25.4% | 0.00% | – |
| Q4 2017 | $396,000 | -75.0% | 38,678 | -64.5% | 0.00% | – |
| Q3 2017 | $1,585,000 | – | 109,025 | – | 0.00% | – |
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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% |