Gilder Gagnon Howe & Co’s Biogen BIIB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2024
Q3
Sell
-57,031
Closed -$13.2M 253
2024
Q2
$13.2M Sell
57,031
-2,910
-5% -$675K 0.17% 103
2024
Q1
$12.9M Sell
59,941
-8,538
-12% -$1.84M 0.16% 109
2023
Q4
$17.7M Buy
68,479
+901
+1% +$233K 0.24% 94
2023
Q3
$17.4M Sell
67,578
-12,719
-16% -$3.27M 0.26% 81
2023
Q2
$22.9M Buy
80,297
+25,885
+48% +$7.37M 0.31% 75
2023
Q1
$15.1M Sell
54,412
-2,129
-4% -$592K 0.25% 87
2022
Q4
$15.7M Buy
+56,541
New +$15.7M 0.29% 87
2021
Q3
Sell
-2,794
Closed -$967K 425
2021
Q2
$967K Sell
2,794
-3,634
-57% -$1.26M ﹤0.01% 331
2021
Q1
$1.8M Buy
+6,428
New +$1.8M 0.01% 281
2016
Q4
Sell
-177
Closed -$55K 267
2016
Q3
$55K Buy
+177
New +$55K ﹤0.01% 256
2015
Q3
Sell
-1,062
Closed -$429K 260
2015
Q2
$429K Sell
1,062
-2
-0.2% -$808 0.01% 234
2015
Q1
$449K Buy
1,064
+982
+1,198% +$414K 0.01% 224
2014
Q4
$28K Buy
+82
New +$28K ﹤0.01% 266