MERRIMACK PHARMACEUTICALS IN filings

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SEC filings by MERRIMACK PHARMACEUTICALS IN (ownership)
TypeFiledFilerSubjectShares OwnedPercent Owned
SC 13G/A2024-03-07BlackRock Inc.MERRIMACK PHARMACEUTICALS INC715,2795.0%EDGAR
SC 13G/A2024-02-1422NW Fund, LPMERRIMACK PHARMACEUTICALS INC-0.0%EDGAR
SC 13G2024-01-31BlackRock Inc.MERRIMACK PHARMACEUTICALS INC743,6235.2%EDGAR
SC 13D/A2024-01-25Newtyn Management, LLCMERRIMACK PHARMACEUTICALS INC1,873,69413.1%EDGAR
SC 13D/A2023-12-13Western Standard LLCMERRIMACK PHARMACEUTICALS INC2,220,05815.5%EDGAR
SC 13D/A2023-08-14Western Standard LLCMERRIMACK PHARMACEUTICALS INC1,991,10813.9%EDGAR
SC 13G/A2023-02-14Point72 Asset Management, L.P.MERRIMACK PHARMACEUTICALS INC00.0%EDGAR
SC 13G/A2023-02-1322NW Fund, LPMERRIMACK PHARMACEUTICALS INC1,015,0487.6%EDGAR
SC 13G2022-08-04Point72 Asset Management, L.P.MERRIMACK PHARMACEUTICALS INC900,4876.7%EDGAR
SC 13G/A2022-02-1422NW, LPMERRIMACK PHARMACEUTICALS INC1,241,8969.3%EDGAR
SC 13G/A2022-02-14Nantahala Capital Management, LLCMERRIMACK PHARMACEUTICALS INC569,9714.3%EDGAR
SC 13G/A2021-02-12DIMENSIONAL FUND ADVISORS LPMERRIMACK PHARMACEUTICALS INC550,5394.1%EDGAR
SC 13G/A2021-02-12Nantahala Capital Management, LLCMERRIMACK PHARMACEUTICALS INC751,8435.6%EDGAR
SC 13G/A2021-02-1222NW, LPMERRIMACK PHARMACEUTICALS INC1,241,8969.3%EDGAR
SC 13D/A2020-12-03Western Standard LLCMERRIMACK PHARMACEUTICALS INC1,188,8458.9%EDGAR
SC 13D/A2020-12-02Newtyn Management, LLCMERRIMACK PHARMACEUTICALS INC1,519,10711.4%EDGAR
SC 13D/A2020-07-27Newtyn Management, LLCMERRIMACK PHARMACEUTICALS INC1,376,88010.3%EDGAR
SC 13D/A2020-07-24Western Standard LLCMERRIMACK PHARMACEUTICALS INC1,046,6287.8%EDGAR
SC 13G/A2020-02-14BIOTECHNOLOGY VALUE FUND L PMERRIMACK PHARMACEUTICALS INC00.0%EDGAR
SC 13G2020-02-14Nantahala Capital Management, LLCMERRIMACK PHARMACEUTICALS INC747,6355.6%EDGAR
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