MERRIMACK PHARMACEUTICALS IN's ticker is MACK and the CUSIP is 590328209. A total of 44 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q1 2021. The put-call ratio across all filers is 3.36 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $2 | 0.0% | 160 | 0.0% | 0.00% | 0.0% |
| Q2 2023 | $2 | 0.0% | 160 | 0.0% | 0.00% | 0.0% |
| Q1 2023 | $2 | 0.0% | 160 | 0.0% | 0.00% | 0.0% |
| Q4 2022 | $2 | -99.8% | 160 | 0.0% | 0.00% | – |
| Q3 2022 | $1,000 | 0.0% | 160 | 0.0% | 0.00% | – |
| Q2 2022 | $1,000 | 0.0% | 160 | 0.0% | 0.00% | – |
| Q1 2022 | $1,000 | 0.0% | 160 | 0.0% | 0.00% | – |
| Q4 2021 | $1,000 | 0.0% | 160 | 0.0% | 0.00% | – |
| Q3 2021 | $1,000 | 0.0% | 160 | 0.0% | 0.00% | – |
| Q2 2021 | $1,000 | 0.0% | 160 | 0.0% | 0.00% | -100.0% |
| Q1 2021 | $1,000 | 0.0% | 160 | 0.0% | 0.00% | 0.0% |
| Q4 2020 | $1,000 | 0.0% | 160 | 0.0% | 0.00% | 0.0% |
| Q3 2020 | $1,000 | 0.0% | 160 | 0.0% | 0.00% | 0.0% |
| Q2 2020 | $1,000 | 0.0% | 160 | 0.0% | 0.00% | 0.0% |
| Q1 2020 | $1,000 | 0.0% | 160 | 0.0% | 0.00% | 0.0% |
| Q4 2019 | $1,000 | 0.0% | 160 | 0.0% | 0.00% | 0.0% |
| Q3 2019 | $1,000 | 0.0% | 160 | 0.0% | 0.00% | 0.0% |
| Q2 2019 | $1,000 | 0.0% | 160 | 0.0% | 0.00% | 0.0% |
| Q1 2019 | $1,000 | – | 160 | – | 0.00% | – |
Download | ||||||
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% |