Renaissance Technologies’s Merrimack Pharmaceuticals, Inc. MACK Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2024
Q2
Sell
-162,184
Closed -$2.4M 4117
2024
Q1
$2.4M Buy
162,184
+113,284
+232% +$1.67M ﹤0.01% 1911
2023
Q4
$656K Buy
+48,900
New +$656K ﹤0.01% 2649
2022
Q1
Sell
-19,461
Closed -$76K 4667
2021
Q4
$76K Sell
19,461
-43,059
-69% -$168K ﹤0.01% 3730
2021
Q3
$302K Sell
62,520
-39,450
-39% -$191K ﹤0.01% 3082
2021
Q2
$652K Sell
101,970
-86,191
-46% -$551K ﹤0.01% 2858
2021
Q1
$1.18M Buy
188,161
+11,300
+6% +$71K ﹤0.01% 2540
2020
Q4
$1.22M Buy
+176,861
New +$1.22M ﹤0.01% 2402
2020
Q1
Sell
-33,961
Closed -$107K 4027
2019
Q4
$107K Buy
+33,961
New +$107K ﹤0.01% 3309
2018
Q2
Sell
-294,997
Closed -$1.87M 3722
2018
Q1
$1.87M Buy
+294,997
New +$1.87M ﹤0.01% 2358
2016
Q3
Sell
-94,666
Closed -$4.02M 3605
2016
Q2
$4.02M Buy
94,666
+13,752
+17% +$583K 0.01% 1752
2016
Q1
$5.33M Buy
+80,914
New +$5.33M 0.01% 1574
2015
Q3
Sell
-2,175
Closed -$212K 3506
2015
Q2
$212K Buy
+2,175
New +$212K ﹤0.01% 2970
2015
Q1
Sell
-32,463
Closed -$2.89M 3458
2014
Q4
$2.89M Sell
32,463
-8,363
-20% -$743K 0.01% 1593
2014
Q3
$2.82M Sell
40,826
-31,546
-44% -$2.18M 0.01% 1483
2014
Q2
$4.15M Buy
+72,372
New +$4.15M 0.01% 1333