Winton Group’s Biogen BIIB Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | – | Sell |
-3,297
| Closed | -$604K | – | 1192 |
|
|
2026
Q1 | $604K | Sell |
3,297
-6,848
| -68% | -$1.26M | 0.02% | 661 |
|
|
2025
Q4 | $1.79M | Buy |
+10,145
| New | +$1.66M | 0.06% | 320 |
|
|
2023
Q4 | – | Sell |
-2,063
| Closed | -$530K | – | 745 |
|
|
2023
Q3 | $530K | Buy |
2,063
+577
| +39% | +$154K | 0.04% | 227 |
|
|
2023
Q2 | $423K | Sell |
1,486
-11,605
| -89% | -$3.45M | 0.04% | 392 |
|
|
2023
Q1 | $3.64M | Sell |
13,091
-3,771
| -22% | -$1.04M | 0.22% | 81 |
|
|
2022
Q4 | $4.67M | Buy |
16,862
+9,609
| +132% | +$2.71M | 0.31% | 37 |
|
|
2022
Q3 | $1.94M | Buy |
+7,253
| New | +$1.54M | 0.13% | 212 |
|
|
2022
Q1 | – | Sell |
-1,444
| Closed | -$346K | – | 964 |
|
|
2021
Q4 | $346K | Buy |
+1,444
| New | +$371K | 0.02% | 787 |
|
|
2020
Q4 | – | Sell |
-11,422
| Closed | -$3.24M | – | 1328 |
|
|
2020
Q3 | $3.24M | Sell |
11,422
-9,827
| -46% | -$2.74M | 0.11% | 299 |
|
|
2020
Q2 | $5.68M | Buy |
21,249
+18,631
| +712% | +$5.6M | 0.15% | 168 |
|
|
2020
Q1 | $828K | Buy |
+2,618
| New | +$794K | 0.02% | 869 |
|
|
2019
Q4 | – | Sell |
-50,246
| Closed | -$11.7M | – | 1553 |
|
|
2019
Q3 | $11.7M | Buy |
50,246
+8,479
| +20% | +$1.97M | 0.14% | 192 |
|
|
2019
Q2 | $9.77M | Buy |
41,767
+5,164
| +14% | +$1.19M | 0.19% | 176 |
|
|
2019
Q1 | $8.65M | Buy |
36,603
+35,825
| +4,605% | +$11.3M | 0.17% | 211 |
|
|
2018
Q4 | $234K | Sell |
778
-190
| -20% | -$60.6K | 0.01% | 748 |
|
|
2018
Q3 | $342K | Sell |
968
-166
| -15% | -$57.2K | 0.01% | 766 |
|
|
2018
Q2 | $329K | Sell |
1,134
-365
| -24% | -$103K | 0.01% | 789 |
|
|
2018
Q1 | $410K | Sell |
1,499
-12
| -0.8% | -$3.73K | 0.01% | 858 |
|
|
2017
Q4 | $481K | Sell |
1,511
-25,703
| -94% | -$8.25M | 0.01% | 508 |
|
|
2017
Q3 | $8.52M | Buy |
27,214
+16,696
| +159% | +$4.94M | 0.27% | 95 |
|
|
2017
Q2 | $2.85M | Buy |
+10,518
| New | +$2.78M | 0.08% | 232 |
|
|
2017
Q1 | – | Sell |
-1,323
| Closed | -$375K | – | 432 |
|
|
2016
Q4 | $375K | Sell |
1,323
-6,001
| -82% | -$1.78M | 0.01% | 392 |
|
|
2016
Q3 | $2.29M | Buy |
+7,324
| New | +$2.17M | 0.04% | 276 |
|
|
2016
Q1 | – | Sell |
-16,245
| Closed | -$4.98M | – | 313 |
|
|
2015
Q4 | $4.98M | Sell |
16,245
-14,625
| -47% | -$4.2M | 0.04% | 277 |
|
|
2015
Q3 | $9.01M | Buy |
30,870
+1,919
| +7% | +$634K | 0.07% | 303 |
|
|
2015
Q2 | $11.7M | Buy |
28,951
+11,503
| +66% | +$4.62M | 0.11% | 265 |
|
|
2015
Q1 | $7.37M | Buy |
17,448
+15,449
| +773% | +$6.09M | 0.06% | 324 |
|
|
2014
Q4 | $679K | Sell |
1,999
-43,035
| -96% | -$13.9M | 0.01% | 509 |
|
|
2014
Q3 | $14.9M | Sell |
45,034
-62,213
| -58% | -$20.5M | 0.11% | 295 |
|
|
2014
Q2 | $33.8M | Buy |
+107,247
| New | +$32.3M | 0.23% | 186 |
|
Other funds holding BIIB
Winton Group's BIIB Position: Q2 2026 in Review
Winton Group sold out of Biogen (BIIB) in Q2 2026, closing a stake of 3,297 shares — an estimated $604K sold.
Winton Group first reported a position in BIIB in Q2 2014 and held it in 30 quarters. The position peaked at $33.8M in Q2 2014. 702 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.
- Winton Group reported no remaining Biogen position as of Q2 2026 after selling out during the quarter.
- Winton Group sold 3,297 Biogen shares in Q2 2026, an estimated $604K.
- Winton Group first reported a position in Biogen in Q2 2014 and held it in 30 quarters.
- Winton Group's Biogen position peaked at $33.8M in Q2 2014.
- 702 funds tracked by Wall St. Rank held Biogen as of Q2 2026.
Based on Winton Group's 13F filing for Q2 2026, filed 7 Aug 2026.