MERRIMACK PHARMACEUTICALS IN's ticker is MACK and the CUSIP is 590328209. A total of 57 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q4 2018. The put-call ratio across all filers is 59.00 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,085 | -2.0% | 88 | -2.2% | 0.00% | – |
| Q2 2023 | $1,107 | +0.1% | 90 | 0.0% | 0.00% | – |
| Q1 2023 | $1,106 | +7.3% | 90 | 0.0% | 0.00% | – |
| Q4 2022 | $1,031 | +3.1% | 90 | -1.1% | 0.00% | – |
| Q3 2022 | $1,000 | 0.0% | 91 | 0.0% | 0.00% | – |
| Q2 2022 | $1,000 | 0.0% | 91 | 0.0% | 0.00% | – |
| Q1 2022 | $1,000 | 0.0% | 91 | 0.0% | 0.00% | – |
| Q4 2021 | $1,000 | 0.0% | 91 | -58.6% | 0.00% | – |
| Q3 2021 | $1,000 | 0.0% | 220 | 0.0% | 0.00% | – |
| Q2 2021 | $1,000 | 0.0% | 220 | -0.9% | 0.00% | – |
| Q1 2021 | $1,000 | -50.0% | 222 | 0.0% | 0.00% | – |
| Q4 2020 | $2,000 | +100.0% | 222 | -33.3% | 0.00% | – |
| Q3 2020 | $1,000 | 0.0% | 333 | -15.1% | 0.00% | – |
| Q2 2020 | $1,000 | -50.0% | 392 | -61.8% | 0.00% | – |
| Q1 2020 | $2,000 | -66.7% | 1,027 | -43.9% | 0.00% | – |
| Q4 2019 | $6,000 | -25.0% | 1,832 | 0.0% | 0.00% | – |
| Q3 2019 | $8,000 | -50.0% | 1,832 | -31.1% | 0.00% | – |
| Q2 2019 | $16,000 | -72.9% | 2,657 | -68.8% | 0.00% | – |
| Q1 2019 | $59,000 | -68.4% | 8,513 | -82.4% | 0.00% | -100.0% |
| Q4 2018 | $187,000 | -28.1% | 48,323 | -0.8% | 0.00% | 0.0% |
| Q3 2018 | $260,000 | -40.9% | 48,707 | -45.6% | 0.00% | 0.0% |
| Q2 2018 | $440,000 | -49.9% | 89,540 | -18.0% | 0.00% | -66.7% |
| Q1 2018 | $879,000 | -27.2% | 109,179 | -7.2% | 0.00% | 0.0% |
| Q4 2017 | $1,207,000 | – | 117,710 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Western Standard LLC | 869,354 | $2,895,000 | 3.47% |
| 22NW, LP | 1,241,896 | $4,136,000 | 2.24% |
| Newtyn Management, LLC | 1,199,606 | $3,995,000 | 1.46% |
| WITTENBERG INVESTMENT MANAGEMENT, INC. | 186,198 | $620,000 | 0.35% |
| Yakira Capital Management, Inc. | 66,934 | $223,000 | 0.10% |
| Sepio Capital, LP | 210,534 | $701,000 | 0.08% |
| Nantahala Capital Management | 747,635 | $2,490,000 | 0.08% |
| Watson Rebecca | 3,068 | $10,000 | 0.01% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 61,700 | $205,000 | 0.00% |
| WEBSTER BANK, N. A. | 3,055 | $10,000 | 0.00% |