EIM
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Essex Investment Management’s Biogen BIIB Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2023
Q4
Sell
-4,235
Closed -$1.09M 328
2023
Q3
$1.09M Sell
4,235
-777
-16% -$200K 0.18% 184
2023
Q2
$1.43M Hold
5,012
0.2% 158
2023
Q1
$1.39M Sell
5,012
-360
-7% -$100K 0.2% 154
2022
Q4
$1.49M Sell
5,372
-1,302
-20% -$361K 0.23% 133
2022
Q3
$1.78M Buy
6,674
+2,130
+47% +$569K 0.28% 110
2022
Q2
$927K Sell
4,544
-190
-4% -$38.8K 0.15% 203
2022
Q1
$997K Sell
4,734
-7,848
-62% -$1.65M 0.12% 223
2021
Q4
$3.02M Sell
12,582
-66
-0.5% -$15.8K 0.35% 89
2021
Q3
$3.58M Buy
12,648
+100
+0.8% +$28.3K 0.44% 65
2021
Q2
$4.35M Sell
12,548
-292
-2% -$101K 0.51% 58
2021
Q1
$3.59M Sell
12,840
-514
-4% -$144K 0.44% 65
2020
Q4
$3.27M Sell
13,354
-1,330
-9% -$326K 0.41% 74
2020
Q3
$4.17M Buy
14,684
+3,387
+30% +$961K 0.6% 32
2020
Q2
$3.02M Sell
11,297
-12,327
-52% -$3.3M 0.5% 56
2020
Q1
$7.47M Sell
23,624
-5,455
-19% -$1.73M 1.51% 7
2019
Q4
$8.63M Buy
29,079
+19,879
+216% +$5.9M 1.06% 13
2019
Q3
$2.14M Buy
+9,200
New +$2.14M 0.31% 97
2019
Q2
Sell
-153
Closed -$36K 481
2019
Q1
$36K Sell
153
-22,915
-99% -$5.39M 0.01% 408
2018
Q4
$6.94M Sell
23,068
-27,632
-55% -$8.32M 1.09% 16
2018
Q3
$17.9M Buy
50,700
+20,300
+67% +$7.17M 2.11% 3
2018
Q2
$8.82M Sell
30,400
-1,792
-6% -$520K 1.1% 12
2018
Q1
$8.82M Sell
32,192
-2,628
-8% -$720K 1.16% 15
2017
Q4
$11.1M Sell
34,820
-2,811
-7% -$896K 1.46% 10
2017
Q3
$11.8M Buy
37,631
+9,189
+32% +$2.88M 1.6% 11
2017
Q2
$7.72M Buy
28,442
+3,679
+15% +$998K 1.1% 13
2017
Q1
$6.77M Sell
24,763
-5,179
-17% -$1.42M 1.06% 14
2016
Q4
$8.49M Buy
29,942
+19,842
+196% +$5.63M 1.4% 10
2016
Q3
$3.16M Buy
+10,100
New +$3.16M 0.51% 45
2016
Q2
Sell
-10,880
Closed -$2.83M 323
2016
Q1
$2.83M Buy
10,880
+167
+2% +$43.5K 0.49% 44
2015
Q4
$3.28M Buy
10,713
+7,244
+209% +$2.22M 0.51% 47
2015
Q3
$1.01M Buy
3,469
+234
+7% +$68.3K 0.17% 139
2015
Q2
$1.31M Sell
3,235
-7,298
-69% -$2.95M 0.2% 123
2015
Q1
$4.45M Sell
10,533
-4,741
-31% -$2M 0.62% 48
2014
Q4
$5.19M Buy
15,274
+726
+5% +$246K 0.76% 39
2014
Q3
$4.81M Hold
14,548
0.74% 39
2014
Q2
$4.59M Sell
14,548
-635
-4% -$200K 0.68% 37
2014
Q1
$4.64M Buy
15,183
+1,282
+9% +$392K 0.68% 34
2013
Q4
$3.89M Buy
13,901
+12,141
+690% +$3.39M 0.55% 45
2013
Q3
$424K Buy
1,760
+141
+9% +$34K 0.06% 275
2013
Q2
$348K Buy
+1,619
New +$348K 0.06% 256