Nantahala Capital Management - MERRIMACK PHARMACEUTICALS IN ownership

MERRIMACK PHARMACEUTICALS IN's ticker is MACK and the CUSIP is 590328209. A total of 51 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q4 2022. The put-call ratio across all filers is 0.61 and the average weighting 0.5%.

Quarter-by-quarter ownership
Nantahala Capital Management ownership history of MERRIMACK PHARMACEUTICALS IN
ValueSharesWeighting
Q2 2023$1,367,120
-41.8%
111,148
-41.9%
0.13%
-26.7%
Q1 2023$2,350,659
-2.3%
191,266
-8.9%
0.18%
+15.4%
Q4 2022$2,406,600
+49.4%
210,000
-51.1%
0.16%
+50.0%
Q3 2022$1,611,000
-44.9%
429,596
-12.6%
0.10%
-29.3%
Q2 2022$2,924,000
-10.6%
491,509
-4.9%
0.15%
+1.4%
Q1 2022$3,269,000
+46.7%
516,817
-9.3%
0.14%
+85.9%
Q4 2021$2,229,000
-19.0%
569,9710.0%0.08%
-10.3%
Q3 2021$2,753,000
-24.7%
569,971
-0.3%
0.09%
-16.3%
Q2 2021$3,655,000
-4.4%
571,946
-6.1%
0.10%
-7.1%
Q1 2021$3,824,000
-26.2%
608,974
-19.0%
0.11%
-30.4%
Q4 2020$5,180,000
+72.2%
751,843
-0.0%
0.16%
+75.0%
Q3 2020$3,008,000
+20.8%
751,943
+0.6%
0.09%
+22.7%
Q2 2020$2,490,000
+54.9%
747,6350.0%0.08%
+25.0%
Q1 2020$1,607,000
-31.8%
747,6350.0%0.06%
-17.8%
Q4 2019$2,355,000
-30.0%
747,6350.0%0.07%
-41.6%
Q3 2019$3,364,000
-14.1%
747,635
+15.4%
0.12%
+3.3%
Q2 2019$3,918,000647,6350.12%
Other shareholders
MERRIMACK PHARMACEUTICALS IN shareholders Q4 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