AMF Tjänstepension’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 | – | Sell |
-33,479
| Closed | -$5.89M | – | 119 |
|
|
2025
Q4 | $5.89M | Hold |
33,479
| – | – | 0.04% | 94 |
|
|
2025
Q3 | $4.69M | Sell |
33,479
-25,636
| -43% | -$3.47M | 0.03% | 117 |
|
|
2025
Q2 | $7.42M | Hold |
59,115
| – | – | 0.05% | 131 |
|
|
2025
Q1 | $8.09M | Hold |
59,115
| – | – | 0.06% | 171 |
|
|
2024
Q4 | $9.04M | Sell |
59,115
-4,818
| -8% | -$813K | 0.06% | 163 |
|
|
2024
Q3 | $12.4M | Hold |
63,933
| – | – | 0.09% | 154 |
|
|
2024
Q2 | $14.8M | Buy |
+63,933
| New | +$13.9M | 0.11% | 120 |
|
|
2024
Q1 | – | Sell |
-43,849
| Closed | -$11.3M | – | 26 |
|
|
2023
Q4 | $11.3M | Hold |
43,849
| – | – | 0.1% | 144 |
|
|
2023
Q3 | $11.3M | Hold |
43,849
| – | – | 0.11% | 126 |
|
|
2023
Q2 | $12.5M | Sell |
43,849
-1,796
| -4% | -$535K | 0.12% | 130 |
|
|
2023
Q1 | $12.7M | Hold |
45,645
| – | – | 0.13% | 117 |
|
|
2022
Q4 | $12.6M | Hold |
45,645
| – | – | 0.14% | 121 |
|
|
2022
Q3 | $12.2M | Sell |
45,645
-24,854
| -35% | -$5.28M | 0.14% | 114 |
|
|
2022
Q2 | $14.4M | Sell |
70,499
-33,134
| -32% | -$6.77M | 0.14% | 111 |
|
|
2022
Q1 | $21.8M | Sell |
103,633
-859
| -0.8% | -$187K | 0.16% | 117 |
|
|
2021
Q4 | $25.1M | Buy |
104,492
+9,209
| +10% | +$2.37M | 0.17% | 112 |
|
|
2021
Q3 | $27M | Buy |
95,283
+13,131
| +16% | +$4.3M | 0.2% | 110 |
|
|
2021
Q2 | $28.4M | Sell |
82,152
-18,612
| -18% | -$5.64M | 0.2% | 112 |
|
|
2021
Q1 | $28.2M | Hold |
100,764
| – | – | 0.21% | 101 |
|
|
2020
Q4 | $24.7M | Buy |
100,764
+18,682
| +23% | +$4.82M | 0.2% | 105 |
|
|
2020
Q3 | $23.3M | Sell |
82,082
-320
| -0.4% | -$89.3K | 0.21% | 103 |
|
|
2020
Q2 | $22M | Buy |
82,402
+7,936
| +11% | +$2.39M | 0.23% | 101 |
|
|
2020
Q1 | $23.6M | Sell |
74,466
-54,495
| -42% | -$16.5M | 0.3% | 76 |
|
|
2019
Q4 | $38.3M | Sell |
128,961
-12,846
| -9% | -$3.56M | 0.37% | 69 |
|
|
2019
Q3 | $33M | Buy |
141,807
+15,988
| +13% | +$3.72M | 0.34% | 84 |
|
|
2019
Q2 | $29.4M | Buy |
125,819
+27,879
| +28% | +$6.44M | 0.29% | 104 |
|
|
2019
Q1 | $23.2M | Sell |
97,940
-74,344
| -43% | -$23.4M | 0.23% | 122 |
|
|
2018
Q4 | $51.8M | Sell |
172,284
-22,880
| -12% | -$7.3M | 0.57% | 49 |
|
|
2018
Q3 | $69M | Sell |
195,164
-23,655
| -11% | -$8.14M | 0.63% | 51 |
|
|
2018
Q2 | $63.5M | Sell |
218,819
-15,736
| -7% | -$4.42M | 0.61% | 51 |
|
|
2018
Q1 | $64.2M | Sell |
234,555
-9,129
| -4% | -$2.83M | 0.67% | 52 |
|
|
2017
Q4 | $77.6M | Buy |
243,684
+11,623
| +5% | +$3.73M | 0.76% | 45 |
|
|
2017
Q3 | $72.7M | Buy |
232,061
+20,310
| +10% | +$6.01M | 0.8% | 39 |
|
|
2017
Q2 | $57.9M | Hold |
211,751
| – | – | 0.66% | 52 |
|
|
2017
Q1 | $57.9M | Sell |
211,751
-3,488
| -2% | -$986K | 0.66% | 52 |
|
|
2016
Q4 | $61M | Sell |
215,239
-56,145
| -21% | -$16.6M | 0.71% | 45 |
|
|
2016
Q3 | $85M | Sell |
271,384
-10,574
| -4% | -$3.13M | 1.07% | 21 |
|
|
2016
Q2 | $68.2M | Sell |
281,958
-3,000
| -1% | -$791K | 0.88% | 37 |
|
|
2016
Q1 | $74.2M | Buy |
284,958
+17,134
| +6% | +$4.53M | 0.97% | 30 |
|
|
2015
Q4 | $82M | Buy |
267,824
+60,935
| +29% | +$17.5M | 1.15% | 22 |
|
|
2015
Q3 | $60.4M | Buy |
206,889
+100
| +0% | +$33K | 0.91% | 31 |
|
|
2015
Q2 | $83.5M | Sell |
206,789
-24,933
| -11% | -$10M | 1.16% | 20 |
|
|
2015
Q1 | $97.8M | Sell |
231,722
-1,091
| -0.5% | -$430K | 1.23% | 19 |
|
|
2014
Q4 | $79M | Buy |
+232,813
| New | +$75.3M | 1% | 29 |
|
Other funds holding BIIB
AMF Tjänstepension's BIIB Position: Q1 2026 in Review
AMF Tjänstepension sold out of Biogen (BIIB) in Q1 2026, closing a stake of 33,479 shares — an estimated $5.89M sold.
AMF Tjänstepension first reported a position in BIIB in Q4 2014 and held it in 44 quarters. The position peaked at $97.8M in Q1 2015. 1,009 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.
- AMF Tjänstepension reported no remaining Biogen position as of Q1 2026 after selling out during the quarter.
- AMF Tjänstepension sold 33,479 Biogen shares in Q1 2026, an estimated $5.89M.
- AMF Tjänstepension first reported a position in Biogen in Q4 2014 and held it in 44 quarters.
- AMF Tjänstepension's Biogen position peaked at $97.8M in Q1 2015.
- 1,009 funds tracked by Wall St. Rank held Biogen as of Q1 2026.
Based on AMF Tjänstepension's 13F filing for Q1 2026, filed 4 May 2026.