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 | $23,102,647 | +0.2% | 1,873,694 | 0.0% | 5.70% | +4.7% |
| Q2 2023 | $23,046,436 | +0.1% | 1,873,694 | 0.0% | 5.44% | +20.3% |
| Q1 2023 | $23,027,699 | +13.6% | 1,873,694 | +6.0% | 4.52% | +8.2% |
| Q4 2022 | $20,265,795 | +205.8% | 1,768,394 | +0.1% | 4.18% | +187.4% |
| Q3 2022 | $6,627,000 | -36.6% | 1,767,094 | +0.5% | 1.46% | -26.6% |
| Q2 2022 | $10,460,000 | -3.4% | 1,758,005 | +2.6% | 1.98% | -23.6% |
| Q1 2022 | $10,830,000 | +78.8% | 1,713,612 | +10.6% | 2.59% | +61.3% |
| Q4 2021 | $6,056,000 | -19.0% | 1,548,883 | 0.0% | 1.61% | -19.4% |
| Q3 2021 | $7,481,000 | -24.2% | 1,548,883 | 0.0% | 2.00% | -27.0% |
| Q2 2021 | $9,866,000 | +1.8% | 1,548,883 | 0.0% | 2.73% | +4.4% |
| Q1 2021 | $9,696,000 | -9.1% | 1,548,883 | 0.0% | 2.62% | +6.5% |
| Q4 2020 | $10,672,000 | +105.8% | 1,548,883 | +19.5% | 2.46% | +95.5% |
| Q3 2020 | $5,186,000 | +29.8% | 1,296,436 | +8.1% | 1.26% | -14.0% |
| Q2 2020 | $3,995,000 | +58.4% | 1,199,606 | +2.3% | 1.46% | +68.4% |
| Q1 2020 | $2,522,000 | -31.7% | 1,173,166 | 0.0% | 0.87% | +154.5% |
| Q4 2019 | $3,695,000 | -29.9% | 1,173,166 | 0.0% | 0.34% | -31.2% |
| Q3 2019 | $5,268,000 | -28.2% | 1,173,166 | -3.2% | 0.50% | -47.6% |
| Q2 2019 | $7,333,000 | -7.8% | 1,212,144 | +5.9% | 0.95% | -37.0% |
| Q1 2019 | $7,955,000 | +131.9% | 1,144,583 | +28.8% | 1.50% | +124.1% |
| Q4 2018 | $3,430,000 | -4.7% | 888,620 | +31.6% | 0.67% | +8.9% |
| Q3 2018 | $3,598,000 | +15.7% | 675,000 | +6.6% | 0.62% | +5.8% |
| Q2 2018 | $3,109,000 | +174.2% | 633,297 | +349.6% | 0.58% | +188.1% |
| Q1 2018 | $1,134,000 | -69.5% | 140,857 | -61.1% | 0.20% | -64.4% |
| Q4 2017 | $3,714,000 | -34.5% | 362,335 | -7.1% | 0.57% | -38.0% |
| Q3 2017 | $5,671,000 | – | 390,000 | – | 0.92% | – |
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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% |