The first Biogen trade was made in Q1 2012.
Since then Stanley Druckenmiller bought shares five more times and sold shares on five occasions. The investor sold all their shares in Q1 2018 and doesn't own any shares in Biogen anymore.
Avg closing price
Price range
Sold -109 Thousand shares
Q1 2018
Avg closing price
$310.41
Price range
$260.13
-
$367.91
Increased shares by 127.9% (+61.4 Thousand shares)
Q4 2017
Avg closing price
$320.80
Price range
$307.64
-
$344.58
New holding (+48 Thousand shares)
Q3 2017
Avg closing price
$296.11
Price range
$271.76
-
$329.69
Sold -175 Thousand shares
Q2 2015
Avg closing price
$369.42
Price range
$344.20
-
$396.70
Sold 51.3% shares (-184 Thousand shares)
Q1 2015
Avg closing price
$362.80
Price range
$308.04
-
$438.14
Increased shares by 246.2% (+256 Thousand shares)
Q4 2014