Guggenheim Capital’s Biogen BIIB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$4.84M Buy
26,382
+2,362
+10% +$435K 0.04% 453
2025
Q4
$4.23M Sell
24,020
-38,643
-62% -$6.31M 0.03% 476
2025
Q3
$8.78M Buy
62,663
+2,836
+5% +$383K 0.07% 301
2025
Q2
$7.51M Buy
59,827
+6,701
+13% +$835K 0.06% 319
2025
Q1
$7.27M Sell
53,126
-7,651
-13% -$1.09M 0.07% 317
2024
Q4
$9.29M Buy
60,777
+533
+0.9% +$89.9K 0.08% 269
2024
Q3
$11.7M Sell
60,244
-2,099
-3% -$439K 0.08% 259
2024
Q2
$14.5M Sell
62,343
-6,707
-10% -$1.46M 0.1% 205
2024
Q1
$14.9M Buy
69,050
+995
+1% +$233K 0.11% 193
2023
Q4
$17.6M Sell
68,055
-457
-0.7% -$112K 0.13% 157
2023
Q3
$17.6M Buy
68,512
+7,593
+12% +$2.03M 0.15% 137
2023
Q2
$17.4M Buy
60,919
+3,463
+6% +$1.03M 0.14% 146
2023
Q1
$16M Sell
57,456
-2,081
-3% -$576K 0.14% 163
2022
Q4
$16.5M Sell
59,537
-3,770
-6% -$1.06M 0.15% 160
2022
Q3
$16.9M Sell
63,307
-8,969
-12% -$1.9M 0.16% 151
2022
Q2
$14.7M Sell
72,276
-8,909
-11% -$1.82M 0.12% 211
2022
Q1
$17.1M Sell
81,185
-7,595
-9% -$1.65M 0.1% 227
2021
Q4
$21.3M Buy
88,780
+10,109
+13% +$2.6M 0.11% 190
2021
Q3
$22.3M Sell
78,671
-3,167
-4% -$1.04M 0.13% 152
2021
Q2
$28.3M Buy
81,838
+2,039
+3% +$618K 0.17% 113
2021
Q1
$22.3M Sell
79,799
-14,870
-16% -$4.01M 0.15% 143
2020
Q4
$23.2M Sell
94,669
-6,702
-7% -$1.73M 0.15% 119
2020
Q3
$28.8M Sell
101,371
-15,720
-13% -$4.38M 0.21% 80
2020
Q2
$31.3M Buy
117,091
+12,871
+12% +$3.87M 0.24% 71
2020
Q1
$33M Sell
104,220
-39,975
-28% -$12.1M 0.34% 50
2019
Q4
$42.8M Sell
144,195
-12,140
-8% -$3.37M 0.32% 44
2019
Q3
$36.4M Sell
156,335
-19,979
-11% -$4.65M 0.29% 52
2019
Q2
$41.2M Buy
176,314
+925
+0.5% +$214K 0.34% 45
2019
Q1
$41.5M Buy
175,389
+19,183
+12% +$6.04M 0.34% 42
2018
Q4
$47M Buy
156,206
+444
+0.3% +$142K 0.43% 28
2018
Q3
$55M Sell
155,762
-15,365
-9% -$5.29M 0.38% 27
2018
Q2
$49.7M Sell
171,127
-149,505
-47% -$42M 0.35% 28
2018
Q1
$87.8M Buy
320,632
+39,127
+14% +$12.1M 0.22% 63
2017
Q4
$89.7M Sell
281,505
-57,580
-17% -$18.5M 0.21% 67
2017
Q3
$106M Sell
339,085
-36,723
-10% -$10.9M 0.27% 35
2017
Q2
$102M Buy
375,808
+43,876
+13% +$11.6M 0.27% 30
2017
Q1
$90.8M Buy
331,932
+1,953
+0.6% +$552K 0.25% 37
2016
Q4
$93.6M Buy
329,979
+24,020
+8% +$7.12M 0.27% 34
2016
Q3
$95.8M Sell
305,959
-3,985
-1% -$1.18M 0.3% 25
2016
Q2
$75M Sell
309,944
-29,535
-9% -$7.78M 0.24% 56
2016
Q1
$88.4M Sell
339,479
-56,262
-14% -$14.9M 0.28% 30
2015
Q4
$121M Buy
395,741
+28,165
+8% +$8.09M 0.35% 12
2015
Q3
$107M Sell
367,576
-22,211
-6% -$7.33M 0.33% 14
2015
Q2
$157M Buy
389,787
+32,991
+9% +$13.2M 0.4% 12
2015
Q1
$151M Buy
356,796
+54,087
+18% +$21.3M 0.37% 12
2014
Q4
$103M Buy
302,709
+6,314
+2% +$2.04M 0.26% 37
2014
Q3
$98M Buy
296,395
+16,470
+6% +$5.43M 0.24% 34
2014
Q2
$88.3M Sell
279,925
-2,384
-0.8% -$718K 0.23% 47
2014
Q1
$86.3M Buy
282,309
+6,065
+2% +$1.93M 0.25% 42
2013
Q4
$77.3M Buy
276,244
+17,535
+7% +$4.54M 0.24% 46
2013
Q3
$62.3M Buy
258,709
+28,067
+12% +$6.28M 0.23% 50
2013
Q2
$49.6M Buy
+230,642
New +$49.3M 0.21% 60

Other funds holding BIIB