Ossiam’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 | $7.51M | Sell |
40,960
-21,303
| -34% | -$3.93M | 0.13% | 84 |
|
|
2025
Q4 | $11M | Sell |
62,263
-3,340
| -5% | -$546K | 0.22% | 61 |
|
|
2025
Q3 | $9.19M | Buy |
65,603
+15,116
| +30% | +$2.04M | 0.12% | 130 |
|
|
2025
Q2 | $6.34M | Sell |
50,487
-1,694
| -3% | -$211K | 0.07% | 152 |
|
|
2025
Q1 | $7.14M | Buy |
52,181
+1,818
| +4% | +$260K | 0.1% | 119 |
|
|
2024
Q4 | $7.7M | Buy |
50,363
+2,653
| +6% | +$447K | 0.13% | 111 |
|
|
2024
Q3 | $9.25M | Buy |
47,710
+6,759
| +17% | +$1.41M | 0.18% | 78 |
|
|
2024
Q2 | $9.49M | Buy |
40,951
+15,637
| +62% | +$3.4M | 0.18% | 79 |
|
|
2024
Q1 | $5.46M | Sell |
25,314
-3,306
| -12% | -$774K | 0.1% | 133 |
|
|
2023
Q4 | $7.41M | Sell |
28,620
-4,746
| -14% | -$1.17M | 0.12% | 99 |
|
|
2023
Q3 | $8.58M | Sell |
33,366
-20,280
| -38% | -$5.42M | 0.15% | 98 |
|
|
2023
Q2 | $15.3M | Buy |
53,646
+15,690
| +41% | +$4.67M | 0.27% | 84 |
|
|
2023
Q1 | $10.6M | Buy |
37,956
+127
| +0.3% | +$35.1K | 0.22% | 80 |
|
|
2022
Q4 | $10.5M | Sell |
37,829
-22,831
| -38% | -$6.45M | 0.27% | 81 |
|
|
2022
Q3 | $16.2M | Sell |
60,660
-3,802
| -6% | -$807K | 0.47% | 58 |
|
|
2022
Q2 | $13.1M | Buy |
64,462
+5,393
| +9% | +$1.1M | 0.4% | 57 |
|
|
2022
Q1 | $12.4M | Sell |
59,069
-11,044
| -16% | -$2.4M | 0.33% | 65 |
|
|
2021
Q4 | $16.8M | Buy |
70,113
+21,298
| +44% | +$5.48M | 0.44% | 56 |
|
|
2021
Q3 | $13.8M | Buy |
48,815
+7,989
| +20% | +$2.62M | 0.39% | 52 |
|
|
2021
Q2 | $13.3M | Sell |
40,826
-19,934
| -33% | -$6.04M | 0.36% | 55 |
|
|
2021
Q1 | $17M | Buy |
60,760
+15,256
| +34% | +$4.11M | 0.53% | 44 |
|
|
2020
Q4 | $11.1M | Sell |
45,504
-11,514
| -20% | -$2.97M | 0.39% | 61 |
|
|
2020
Q3 | $16.2M | Buy |
57,018
+1,892
| +3% | +$528K | 0.68% | 32 |
|
|
2020
Q2 | $14.7M | Buy |
55,126
+51,563
| +1,447% | +$15.5M | 0.94% | 25 |
|
|
2020
Q1 | $1.13M | Buy |
3,563
+3,275
| +1,137% | +$994K | 0.08% | 164 |
|
|
2019
Q4 | $85K | Sell |
288
-4,919
| -94% | -$1.36M | 0.01% | 421 |
|
|
2019
Q3 | $1.21M | Buy |
5,207
+5,080
| +4,000% | +$1.18M | 0.08% | 150 |
|
|
2019
Q2 | $30K | Sell |
127
-10,206
| -99% | -$2.36M | ﹤0.01% | 444 |
|
|
2019
Q1 | $2.44M | Buy |
10,333
+1,378
| +15% | +$434K | 0.2% | 97 |
|
|
2018
Q4 | $2.69M | Buy |
+8,955
| New | +$2.86M | 0.41% | 70 |
|
Other funds holding BIIB
VCM
VPM
Ossiam's BIIB Position: Q1 2026 in Review
Ossiam reduced its Biogen (BIIB) stake by 34% in Q1 2026, selling an estimated $3.93M and leaving 40,960 shares worth $7.51M. The position accounts for 0.13% of the portfolio, ranked #84.
Ossiam first reported a position in BIIB in Q4 2018 and has held it in 30 quarters since. The position peaked at $17M in Q1 2021. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.
- Ossiam held 40,960 shares of Biogen worth $7.51M as of Q1 2026.
- Ossiam sold 21,303 Biogen shares in Q1 2026, an estimated $3.93M.
- Biogen made up 0.13% of Ossiam's portfolio in Q1 2026, its #84 holding.
- Ossiam first reported a position in Biogen in Q4 2018 and has held it in 30 quarters since.
- Ossiam's Biogen position peaked at $17M in Q1 2021.
- 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.
Based on Ossiam's 13F filing for Q1 2026, filed 14 May 2026.