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PDT Partners’s Biogen BIIB Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$3.98M Buy
+31,664
New +$3.98M 0.22% 153
2025
Q1
Sell
-39,405
Closed -$6.03M 751
2024
Q4
$6.03M Buy
39,405
+22,908
+139% +$3.5M 0.53% 16
2024
Q3
$3.2M Buy
16,497
+9,997
+154% +$1.94M 0.28% 101
2024
Q2
$1.51M Buy
+6,500
New +$1.51M 0.14% 259
2024
Q1
Sell
-6,125
Closed -$1.58M 629
2023
Q4
$1.58M Buy
6,125
+4,525
+283% +$1.17M 0.18% 197
2023
Q3
$411K Buy
+1,600
New +$411K 0.05% 439
2023
Q2
Sell
-3,039
Closed -$845K 579
2023
Q1
$845K Buy
+3,039
New +$845K 0.11% 298
2022
Q4
Sell
-1,175
Closed -$314K 649
2022
Q3
$314K Buy
+1,175
New +$314K 0.05% 572
2022
Q2
Sell
-6,544
Closed -$1.38M 963
2022
Q1
$1.38M Buy
6,544
+4,097
+167% +$863K 0.12% 270
2021
Q4
$587K Buy
+2,447
New +$587K 0.04% 487
2020
Q4
Sell
-27,513
Closed -$7.81M 699
2020
Q3
$7.81M Sell
27,513
-2
-0% -$567 0.52% 41
2020
Q2
$7.36M Sell
27,515
-7,107
-21% -$1.9M 0.5% 66
2020
Q1
$11M Buy
34,622
+2,501
+8% +$791K 0.87% 8
2019
Q4
$9.53M Sell
32,121
-10,379
-24% -$3.08M 0.59% 45
2019
Q3
$9.9M Hold
42,500
0.59% 35
2019
Q2
$9.94M Buy
+42,500
New +$9.94M 0.59% 42
2018
Q3
Sell
-39,800
Closed -$11.6M 477
2018
Q2
$11.6M Hold
39,800
0.44% 68
2018
Q1
$10.9M Sell
39,800
-15,500
-28% -$4.24M 0.37% 85
2017
Q4
$17.6M Buy
55,300
+12,600
+30% +$4.01M 0.51% 64
2017
Q3
$13.4M Sell
42,700
-6,400
-13% -$2M 0.44% 75
2017
Q2
$13.3M Buy
49,100
+19,600
+66% +$5.32M 0.54% 45
2017
Q1
$8.07M Buy
29,500
+5,400
+22% +$1.48M 0.42% 79
2016
Q4
$6.83M Sell
24,100
-14,100
-37% -$4M 0.45% 46
2016
Q3
$12M Buy
38,200
+10,000
+35% +$3.13M 0.7% 5
2016
Q2
$6.82M Buy
+28,200
New +$6.82M 0.54% 75
2015
Q4
Sell
-57,546
Closed -$16.8M 458
2015
Q3
$16.8M Sell
57,546
-319
-0.6% -$93.1K 0.38% 59
2015
Q2
$23.4M Buy
57,865
+4,630
+9% +$1.87M 0.61% 21
2015
Q1
$22.5M Buy
53,235
+50,405
+1,781% +$21.3M 0.56% 20
2014
Q4
$961K Sell
2,830
-78,711
-97% -$26.7M 0.09% 311
2014
Q3
$27M Buy
81,541
+79,811
+4,613% +$26.4M 0.68% 16
2014
Q2
$545K Sell
1,730
-8,904
-84% -$2.81M 0.01% 953
2014
Q1
$3.25M Buy
10,634
+8,704
+451% +$2.66M 0.08% 314
2013
Q4
$540K Buy
1,930
+200
+12% +$56K 0.07% 392
2013
Q3
$417K Sell
1,730
-26,602
-94% -$6.41M 0.01% 1125
2013
Q2
$6.1M Buy
+28,332
New +$6.1M 0.15% 160