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 ↓ |
|---|---|---|---|
| Newtyn Management, LLC | 362,335 | $3,714,000 | 0.57% |
| Rubric Capital Management LP | 410,244 | $4,205,000 | 0.52% |
| WITTENBERG INVESTMENT MANAGEMENT, INC. | 83,811 | $859,000 | 0.37% |
| Yakira Capital Management, Inc. | 83,969 | $861,000 | 0.28% |
| KEMPNER CAPITAL MANAGEMENT INC. | 14,898 | $153,000 | 0.10% |
| STONEBRIDGE CAPITAL MANAGEMENT INC | 18,550 | $200,000 | 0.07% |
| BOGLE INVESTMENT MANAGEMENT L P /DE/ | 66,498 | $681,000 | 0.05% |
| Cannell & Co. | 75,467 | $774,000 | 0.03% |
| Trexquant Investment LP | 21,347 | $219,000 | 0.02% |
| PDT Partners, LLC | 58,004 | $595,000 | 0.02% |