TSFG, LLC - MERRIMACK PHARMACEUTICALS IN ownership

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MERRIMACK PHARMACEUTICALS IN's ticker is MACK and the CUSIP is 590328209. A total of 43 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q1 2022. The put-call ratio across all filers is 5.04 and the average weighting 0.3%.

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Quarter-by-quarter ownership
TSFG, LLC ownership history of MERRIMACK PHARMACEUTICALS IN
ValueSharesWeighting
Q3 2023$20.0%1600.0%0.00%0.0%
Q2 2023$20.0%1600.0%0.00%0.0%
Q1 2023$20.0%1600.0%0.00%0.0%
Q4 2022$2
-99.8%
1600.0%0.00%–
Q3 2022$1,0000.0%1600.0%0.00%–
Q2 2022$1,0000.0%1600.0%0.00%–
Q1 2022$1,0000.0%1600.0%0.00%–
Q4 2021$1,0000.0%1600.0%0.00%–
Q3 2021$1,0000.0%1600.0%0.00%–
Q2 2021$1,0000.0%1600.0%0.00%
-100.0%
Q1 2021$1,0000.0%1600.0%0.00%0.0%
Q4 2020$1,0000.0%1600.0%0.00%0.0%
Q3 2020$1,0000.0%1600.0%0.00%0.0%
Q2 2020$1,0000.0%1600.0%0.00%0.0%
Q1 2020$1,0000.0%1600.0%0.00%0.0%
Q4 2019$1,0000.0%1600.0%0.00%0.0%
Q3 2019$1,0000.0%1600.0%0.00%0.0%
Q2 2019$1,0000.0%1600.0%0.00%0.0%
Q1 2019$1,000–160–0.00%–
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Other shareholders
MERRIMACK PHARMACEUTICALS IN shareholders Q1 2022
NameSharesValueWeighting ↓
Western Standard LLC 1,894,013$23,353,18021.09%
Newtyn Management, LLC 1,873,694$23,102,6475.70%
Sio Capital Management, LLC 288,466$3,556,7861.10%
Madison Avenue Partners, LP 553,085$6,819,5380.97%
WITTENBERG INVESTMENT MANAGEMENT, INC. 209,739$2,5860.95%
Indaba Capital Management, L.P. 136,802$1,686,7690.50%
Sepio Capital, LP 306,680$3,781,3640.33%
Yakira Capital Management, Inc. 54,118$667,2750.18%
Centiva Capital, LP 187,803$2,315,6110.05%
FIFTH LANE CAPITAL, LP 10,929$134,4270.05%
View complete list of MERRIMACK PHARMACEUTICALS IN shareholders