Two Sigma Investments’s Biogen BIIB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2025
Q2
$63.7M Sell
507,539
-371,791
-42% -$46.7M 0.11% 226
2025
Q1
$120M Buy
879,330
+26,994
+3% +$3.69M 0.26% 87
2024
Q4
$130M Buy
852,336
+203,634
+31% +$31.1M 0.28% 71
2024
Q3
$126M Buy
648,702
+435,803
+205% +$84.5M 0.28% 86
2024
Q2
$49.4M Sell
212,899
-113,526
-35% -$26.3M 0.11% 203
2024
Q1
$70.4M Buy
326,425
+272,400
+504% +$58.7M 0.17% 153
2023
Q4
$14M Buy
54,025
+34,511
+177% +$8.93M 0.03% 507
2023
Q3
$5.02M Sell
19,514
-5,652
-22% -$1.45M 0.01% 858
2023
Q2
$7.17M Buy
+25,166
New +$7.17M 0.02% 728
2023
Q1
Sell
-213,939
Closed -$59.2M 2893
2022
Q4
$59.2M Buy
213,939
+63,121
+42% +$17.5M 0.19% 133
2022
Q3
$40.3M Sell
150,818
-93,962
-38% -$25.1M 0.14% 183
2022
Q2
$49.9M Sell
244,780
-418,752
-63% -$85.4M 0.16% 158
2022
Q1
$140M Buy
663,532
+185,871
+39% +$39.1M 0.41% 45
2021
Q4
$115M Buy
477,661
+338,031
+242% +$81.1M 0.24% 93
2021
Q3
$39.5M Buy
139,630
+116,441
+502% +$33M 0.09% 233
2021
Q2
$8.03M Buy
23,189
+17,000
+275% +$5.89M 0.02% 729
2021
Q1
$1.73M Buy
+6,189
New +$1.73M ﹤0.01% 1339
2020
Q4
Hold
0
2029
2020
Q3
Hold
0
1892
2020
Q2
Sell
-27,300
Closed -$8.64M 1990
2020
Q1
$8.64M Buy
+27,300
New +$8.64M 0.07% 239
2019
Q4
Sell
-49,281
Closed -$11.5M 2160
2019
Q3
$11.5M Sell
49,281
-164,359
-77% -$38.3M 0.04% 407
2019
Q2
$50M Buy
213,640
+167,063
+359% +$39.1M 0.17% 140
2019
Q1
$11M Sell
46,577
-44,989
-49% -$10.6M 0.04% 546
2018
Q4
$27.6M Buy
91,566
+50,386
+122% +$15.2M 0.11% 237
2018
Q3
$14.5M Buy
+41,180
New +$14.5M 0.04% 464
2018
Q2
Sell
-948
Closed -$260K 2042
2018
Q1
$260K Sell
948
-1,325
-58% -$363K ﹤0.01% 1774
2017
Q4
$724K Sell
2,273
-567
-20% -$181K ﹤0.01% 1606
2017
Q3
$889K Buy
+2,840
New +$889K ﹤0.01% 1326
2017
Q2
Sell
-5,314
Closed -$1.45M 2014
2017
Q1
$1.45M Sell
5,314
-558,076
-99% -$153M ﹤0.01% 1304
2016
Q4
$160M Buy
563,390
+535,631
+1,930% +$152M 0.61% 10
2016
Q3
$8.69M Sell
27,759
-214,244
-89% -$67.1M 0.03% 498
2016
Q2
$58.5M Sell
242,003
-1,909
-0.8% -$462K 0.25% 83
2016
Q1
$63.5M Buy
243,912
+82,496
+51% +$21.5M 0.3% 70
2015
Q4
$49.5M Buy
161,416
+50,930
+46% +$15.6M 0.24% 102
2015
Q3
$32.2M Sell
110,486
-101,300
-48% -$29.6M 0.17% 159
2015
Q2
$85.5M Buy
211,786
+206,384
+3,821% +$83.4M 0.4% 46
2015
Q1
$2.28M Sell
5,402
-7,674
-59% -$3.24M 0.01% 1014
2014
Q4
$4.44M Sell
13,076
-220,033
-94% -$74.7M 0.02% 683
2014
Q3
$77.1M Buy
+233,109
New +$77.1M 0.34% 80
2014
Q1
Sell
-19,658
Closed -$5.5M 1989
2013
Q4
$5.5M Sell
19,658
-285,858
-94% -$80M 0.03% 594
2013
Q3
$73.6M Sell
305,516
-96,210
-24% -$23.2M 0.47% 51
2013
Q2
$86.5M Buy
+401,726
New +$86.5M 0.6% 19