Marshall Wace’s Alexion Pharmaceuticals Inc ALXN Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2021
Q3
Sell
-131,070
Closed -$24.1M 3421
2021
Q2
$24.1M Sell
131,070
-225,196
-63% -$41.4M 0.11% 175
2021
Q1
$54.5M Buy
356,266
+189,797
+114% +$29M 0.25% 60
2020
Q4
$26M Buy
166,469
+117,008
+237% +$18.3M 0.14% 126
2020
Q3
$5.66M Sell
49,461
-267,823
-84% -$30.6M 0.04% 449
2020
Q2
$35.6M Buy
317,284
+207,469
+189% +$23.3M 0.25% 75
2020
Q1
$9.86M Buy
109,815
+1,582
+1% +$142K 0.1% 210
2019
Q4
$11.7M Buy
108,233
+18,250
+20% +$1.97M 0.08% 261
2019
Q3
$8.81M Sell
89,983
-88,637
-50% -$8.68M 0.07% 305
2019
Q2
$23.4M Buy
178,620
+117,490
+192% +$15.4M 0.19% 103
2019
Q1
$8.26M Buy
61,130
+33,871
+124% +$4.58M 0.08% 311
2018
Q4
$2.65M Buy
27,259
+21,068
+340% +$2.05M 0.03% 653
2018
Q3
$861K Sell
6,191
-223,466
-97% -$31.1M 0.01% 837
2018
Q2
$28.5M Buy
229,657
+216,380
+1,630% +$26.9M 0.43% 60
2018
Q1
$1.48M Buy
+13,277
New +$1.48M 0.06% 229
2017
Q4
Sell
-2,973
Closed -$416K 505
2017
Q3
$416K Sell
2,973
-531
-15% -$74.3K 0.02% 291
2017
Q2
$427K Sell
3,504
-15,632
-82% -$1.9M 0.02% 253
2017
Q1
$2.32M Sell
19,136
-79,196
-81% -$9.58M 0.11% 127
2016
Q4
$12M Sell
98,332
-329,362
-77% -$40.3M 0.08% 290
2016
Q3
$52.4M Buy
427,694
+342,472
+402% +$42M 0.37% 65
2016
Q2
$9.95M Buy
85,222
+72,741
+583% +$8.49M 0.08% 238
2016
Q1
$1.74M Sell
12,481
-39,248
-76% -$5.47M 0.02% 590
2015
Q4
$9.87M Buy
+51,729
New +$9.87M 0.09% 227
2015
Q3
Sell
-10,671
Closed -$1.93M 1109
2015
Q2
$1.93M Sell
10,671
-233,306
-96% -$42.2M 0.03% 483
2015
Q1
$42.3M Buy
243,977
+82,215
+51% +$14.2M 0.55% 37
2014
Q4
$29.9M Sell
161,762
-53,922
-25% -$9.98M 0.4% 64
2014
Q3
$35.8M Buy
215,684
+162,413
+305% +$26.9M 0.52% 43
2014
Q2
$8.32M Sell
53,271
-8,299
-13% -$1.3M 0.12% 194
2014
Q1
$9.37M Buy
+61,570
New +$9.37M 0.17% 164