Main Street Research’s Biogen BIIB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2020
Q2
Sell
-55,689
Closed -$17.6M 98
2020
Q1
$17.6M Sell
55,689
-1,017
-2% -$322K 4.32% 5
2019
Q4
$16.8M Sell
56,706
-300
-0.5% -$89K 2.65% 10
2019
Q3
$13.3M Buy
57,006
+50,656
+798% +$11.8M 2.49% 22
2019
Q2
$1.49M Sell
6,350
-70
-1% -$16.4K 0.33% 35
2019
Q1
$1.52M Buy
+6,420
New +$1.52M 0.48% 29
2018
Q4
Sell
-3,182
Closed -$1.12M 83
2018
Q3
$1.12M Sell
3,182
-108
-3% -$38.2K 0.16% 49
2018
Q2
$955K Hold
3,290
0.15% 51
2018
Q1
$901K Buy
3,290
+86
+3% +$23.6K 0.14% 54
2017
Q4
$1.02M Sell
3,204
-340
-10% -$108K 0.16% 58
2017
Q3
$1.11M Sell
3,544
-352
-9% -$110K 0.18% 58
2017
Q2
$1.06M Sell
3,896
-252
-6% -$68.4K 0.17% 67
2017
Q1
$1.13M Sell
4,148
-145
-3% -$39.6K 0.2% 64
2016
Q4
$1.22M Buy
4,293
+10
+0.2% +$2.84K 0.24% 62
2016
Q3
$1.34M Sell
4,283
-510
-11% -$160K 0.26% 63
2016
Q2
$1.16M Hold
4,793
0.24% 63
2016
Q1
$1.25M Sell
4,793
-60
-1% -$15.6K 0.32% 54
2015
Q4
$1.49M Hold
4,853
0.32% 67
2015
Q3
$1.41M Sell
4,853
-65
-1% -$18.9K 0.33% 67
2015
Q2
$1.99M Sell
4,918
-15
-0.3% -$6.06K 0.41% 73
2015
Q1
$2.08M Sell
4,933
-305
-6% -$129K 0.45% 68
2014
Q4
$1.78M Hold
5,238
0.38% 73
2014
Q3
$1.73M Buy
5,238
+40
+0.8% +$13.2K 0.39% 77
2014
Q2
$1.64M Hold
5,198
0.39% 75
2014
Q1
$1.59M Hold
5,198
0.39% 74
2013
Q4
$1.45M Sell
5,198
-20
-0.4% -$5.59K 0.36% 77
2013
Q3
$1.26M Sell
5,218
-720
-12% -$173K 0.34% 78
2013
Q2
$1.28M Buy
+5,938
New +$1.28M 0.39% 76