State Street
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State Street’s Biogen BIIB Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$938M Buy
7,468,807
+71,897
+1% +$9.03M 0.04% 397
2025
Q1
$1.01B Sell
7,396,910
-1,338
-0% -$183K 0.04% 359
2024
Q4
$1.13B Buy
7,398,248
+53,288
+0.7% +$8.15M 0.04% 353
2024
Q3
$1.42B Buy
7,344,960
+248,942
+4% +$48.3M 0.06% 296
2024
Q2
$1.64B Buy
7,096,018
+349,010
+5% +$80.9M 0.07% 247
2024
Q1
$1.45B Sell
6,747,008
-198,657
-3% -$42.8M 0.07% 271
2023
Q4
$1.8B Buy
6,945,665
+80,011
+1% +$20.7M 0.09% 219
2023
Q3
$1.76B Sell
6,865,654
-19,561
-0.3% -$5.03M 0.1% 200
2023
Q2
$1.96B Buy
6,885,215
+128,215
+2% +$36.5M 0.1% 185
2023
Q1
$1.88B Sell
6,757,000
-51,274
-0.8% -$14.3M 0.11% 186
2022
Q4
$1.89B Sell
6,808,274
-87,083
-1% -$24.1M 0.11% 183
2022
Q3
$1.84B Buy
6,895,357
+18,476
+0.3% +$4.93M 0.12% 168
2022
Q2
$1.4B Sell
6,876,881
-332,025
-5% -$67.7M 0.08% 231
2022
Q1
$1.52B Buy
7,208,906
+197,400
+3% +$41.6M 0.08% 252
2021
Q4
$1.68B Buy
7,011,506
+107,970
+2% +$25.9M 0.08% 251
2021
Q3
$1.95B Buy
6,903,536
+223,496
+3% +$63.2M 0.1% 185
2021
Q2
$2.31B Buy
6,680,040
+7,507
+0.1% +$2.6M 0.12% 156
2021
Q1
$1.87B Sell
6,672,533
-319,482
-5% -$89.4M 0.11% 182
2020
Q4
$1.71B Sell
6,992,015
-531,681
-7% -$130M 0.1% 171
2020
Q3
$2.13B Sell
7,523,696
-313,177
-4% -$88.8M 0.15% 138
2020
Q2
$2.1B Sell
7,836,873
-425,369
-5% -$114M 0.15% 131
2020
Q1
$2.61B Buy
8,262,242
+30,055
+0.4% +$9.51M 0.23% 93
2019
Q4
$2.44B Sell
8,232,187
-208,232
-2% -$61.8M 0.17% 122
2019
Q3
$1.97B Sell
8,440,419
-324,156
-4% -$75.5M 0.15% 152
2019
Q2
$2.05B Buy
8,764,575
+9,682
+0.1% +$2.26M 0.15% 138
2019
Q1
$2.07B Sell
8,754,893
-26,299
-0.3% -$6.22M 0.16% 123
2018
Q4
$2.64B Sell
8,781,192
-63,643
-0.7% -$19.2M 0.24% 88
2018
Q3
$3.12B Sell
8,844,835
-55,715
-0.6% -$19.7M 0.24% 85
2018
Q2
$2.58B Buy
8,900,550
+154,494
+2% +$44.8M 0.22% 87
2018
Q1
$2.39B Sell
8,746,056
-737,545
-8% -$202M 0.2% 96
2017
Q4
$3.02B Sell
9,483,601
-185,815
-2% -$59.2M 0.24% 84
2017
Q3
$3.03B Sell
9,669,416
-51,896
-0.5% -$16.2M 0.26% 78
2017
Q2
$2.64B Buy
9,721,312
+140,929
+1% +$38.2M 0.23% 89
2017
Q1
$2.62B Buy
9,580,383
+219,502
+2% +$60M 0.23% 87
2016
Q4
$2.65B Buy
9,360,881
+293,817
+3% +$83.3M 0.25% 86
2016
Q3
$2.84B Buy
9,067,064
+233,716
+3% +$73.2M 0.29% 70
2016
Q2
$2.14B Sell
8,833,348
-95,507
-1% -$23.1M 0.23% 93
2016
Q1
$2.32B Sell
8,928,855
-532,762
-6% -$139M 0.25% 82
2015
Q4
$2.9B Sell
9,461,617
-24,010
-0.3% -$7.36M 0.32% 65
2015
Q3
$2.77B Sell
9,485,627
-17,158
-0.2% -$5.01M 0.32% 65
2015
Q2
$3.84B Sell
9,502,785
-282,405
-3% -$114M 0.41% 52
2015
Q1
$4.13B Sell
9,785,190
-320,601
-3% -$135M 0.42% 52
2014
Q4
$3.43B Buy
10,105,791
+242,919
+2% +$82.5M 0.34% 61
2014
Q3
$3.26B Buy
9,862,872
+224,155
+2% +$74.2M 0.35% 59
2014
Q2
$3.04B Buy
9,638,717
+92,043
+1% +$29M 0.33% 59
2014
Q1
$2.92B Sell
9,546,674
-607,608
-6% -$186M 0.33% 62
2013
Q4
$2.84B Sell
10,154,282
-104,496
-1% -$29.2M 0.32% 65
2013
Q3
$2.47B Buy
10,258,778
+89,425
+0.9% +$21.5M 0.3% 68
2013
Q2
$2.19B Buy
+10,169,353
New +$2.19B 0.29% 69