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 | $114,992 | +2682.3% | 9,326 | +2675.6% | 0.00% | – |
| Q2 2023 | $4,133 | -1.1% | 336 | -1.2% | 0.00% | – |
| Q1 2023 | $4,178 | – | 340 | +33900.0% | 0.00% | – |
| Q3 2022 | $0 | – | 1 | 0.0% | 0.00% | – |
| Q4 2020 | $0 | – | 1 | 0.0% | 0.00% | – |
| Q3 2020 | $0 | – | 1 | 0.0% | 0.00% | – |
| Q2 2020 | $0 | – | 1 | -88.9% | 0.00% | – |
| Q1 2020 | $0 | – | 9 | 0.0% | 0.00% | – |
| Q4 2019 | $0 | – | 9 | -35.7% | 0.00% | – |
| Q3 2019 | $0 | – | 14 | -62.2% | 0.00% | – |
| Q2 2019 | $0 | -100.0% | 37 | -58.0% | 0.00% | – |
| Q1 2019 | $1,000 | 0.0% | 88 | -40.5% | 0.00% | – |
| Q4 2018 | $1,000 | -75.0% | 148 | -80.7% | 0.00% | – |
| Q3 2018 | $4,000 | -98.3% | 766 | -98.4% | 0.00% | – |
| Q2 2018 | $241,000 | -98.1% | 49,071 | -97.0% | 0.00% | -100.0% |
| Q1 2018 | $13,000,000 | -20.6% | 1,615,019 | +1.2% | 0.00% | 0.0% |
| Q4 2017 | $16,363,000 | -28.9% | 1,596,423 | +0.9% | 0.00% | -33.3% |
| Q3 2017 | $23,003,000 | – | 1,582,057 | – | 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% |