Arrowstreet Capital
BIIB icon

Arrowstreet Capital’s Biogen BIIB Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$78.4M Buy
624,371
+409,591
+191% +$51.4M 0.06% 315
2025
Q1
$29.4M Buy
+214,780
New +$29.4M 0.02% 483
2023
Q4
Sell
-196,954
Closed -$50.6M 1409
2023
Q3
$50.6M Sell
196,954
-98,889
-33% -$25.4M 0.06% 249
2023
Q2
$84.3M Buy
295,843
+5,103
+2% +$1.45M 0.1% 175
2023
Q1
$80.8M Sell
290,740
-156,059
-35% -$43.4M 0.1% 189
2022
Q4
$124M Sell
446,799
-183,697
-29% -$50.9M 0.17% 136
2022
Q3
$168M Buy
630,496
+40,394
+7% +$10.8M 0.25% 104
2022
Q2
$120M Sell
590,102
-397,975
-40% -$81.2M 0.17% 135
2022
Q1
$208M Buy
988,077
+22,215
+2% +$4.68M 0.26% 103
2021
Q4
$232M Buy
965,862
+691,743
+252% +$166M 0.28% 89
2021
Q3
$77.6M Buy
274,119
+87,302
+47% +$24.7M 0.1% 231
2021
Q2
$64.7M Buy
+186,817
New +$64.7M 0.08% 273
2021
Q1
Sell
-316,606
Closed -$77.5M 2249
2020
Q4
$77.5M Buy
316,606
+18,301
+6% +$4.48M 0.11% 168
2020
Q3
$84.6M Sell
298,305
-412,294
-58% -$117M 0.13% 140
2020
Q2
$190M Sell
710,599
-735,860
-51% -$197M 0.35% 47
2020
Q1
$458M Sell
1,446,459
-973,732
-40% -$308M 1.29% 7
2019
Q4
$718M Sell
2,420,191
-242,164
-9% -$71.9M 1.67% 7
2019
Q3
$620M Buy
2,662,355
+167,598
+7% +$39M 1.45% 7
2019
Q2
$583M Buy
2,494,757
+778,167
+45% +$182M 1.3% 7
2019
Q1
$406M Buy
1,716,590
+192,501
+13% +$45.5M 0.96% 20
2018
Q4
$459M Buy
1,524,089
+94,227
+7% +$28.4M 1.2% 13
2018
Q3
$505M Sell
1,429,862
-376,925
-21% -$133M 1.14% 17
2018
Q2
$524M Buy
1,806,787
+662,933
+58% +$192M 1.28% 11
2018
Q1
$313M Buy
1,143,854
+1,094,854
+2,234% +$300M 0.72% 32
2017
Q4
$15.6M Buy
+49,000
New +$15.6M 0.04% 348
2017
Q3
Sell
-159,300
Closed -$43.2M 1099
2017
Q2
$43.2M Buy
159,300
+154,200
+3,024% +$41.8M 0.13% 166
2017
Q1
$1.39M Buy
+5,100
New +$1.39M 0.01% 895
2016
Q1
Sell
-289,253
Closed -$88.6M 1341
2015
Q4
$88.6M Sell
289,253
-317,757
-52% -$97.3M 0.41% 52
2015
Q3
$177M Buy
607,010
+304,100
+100% +$88.7M 0.84% 20
2015
Q2
$122M Buy
302,910
+300,810
+14,324% +$122M 0.69% 31
2015
Q1
$887K Buy
+2,100
New +$887K 0.01% 737
2014
Q4
Sell
-332,814
Closed -$110M 1231
2014
Q3
$110M Buy
332,814
+80,913
+32% +$26.8M 0.59% 38
2014
Q2
$79.4M Sell
251,901
-418,208
-62% -$132M 0.41% 55
2014
Q1
$205M Sell
670,109
-21,445
-3% -$6.56M 1.24% 13
2013
Q4
$193M Buy
691,554
+7,381
+1% +$2.06M 1.05% 13
2013
Q3
$165M Buy
684,173
+66,404
+11% +$16M 1.05% 17
2013
Q2
$133M Buy
+617,769
New +$133M 0.99% 19