Sg Americas Securities, LLC / BIIB
Sg Americas Securities, LLC’s Biogen Inc Position
Does Sg Americas Securities, LLC own Biogen Inc (BIIB)? Yes — 195.7K shares worth $36M (+0.04% of its 13F portfolio) as of Q1 2026, up from 183.8K shares the prior filed quarter.
Position Value
$36M
Q1 2026
Shares
195.7K
% of Portfolio
+0.04%
Quarters Held
28
currently held
Position History BIIB
Reported value by quarter
| Quarter | Shares | Value | % of Portfolio |
|---|---|---|---|
| Q1 2026 | 195.7K | $36M | +0.04% |
| Q4 2025 | 183.8K | $32M | +0.04% |
| Q3 2025 | 9.7K | $1M | 0.00% |
| Q2 2025 | 22.5K | $3M | +0.01% |
| Q1 2025 | 719.8K | $98M | +0.32% |
| Q3 2024 | 3.7K | $712,000 | 0.00% |
| Q2 2024 | 40.2K | $9M | +0.05% |
| Q1 2024 | 176.3K | $38M | +0.18% |
| Q4 2023 | 14.2K | $4M | +0.03% |
| Q3 2023 | 16.6K | $4M | +0.05% |
| Q2 2023 | 18.1K | $5M | +0.04% |
| Q1 2023 | 13.5K | $4M | +0.04% |
| Q4 2022 | 27.2K | $8M | +0.09% |
| Q3 2022 | 7.0K | $2M | +0.02% |
| Q2 2022 | 9.3K | $2M | +0.02% |
| Q1 2022 | 65.4K | $14M | +0.10% |
| Q4 2021 | 32.8K | $8M | +0.04% |
| Q3 2021 | 21.3K | $6M | +0.03% |
| Q2 2021 | 12.8K | $4M | +0.02% |
| Q1 2021 | 30.0K | $8M | +0.04% |
| Q4 2020 | 60.2K | $15M | +0.08% |
| Q3 2020 | 31.8K | $9M | +0.06% |
| Q2 2020 | 55.2K | $15M | +0.12% |
| Q1 2020 | 8.9K | $3M | +0.03% |
| Q4 2019 | 22.1K | $7M | +0.06% |
| Q3 2019 | 55.8K | $13M | +0.11% |
| Q2 2019 | 73.6K | $17M | +0.12% |
| Q1 2019 | 44.1K | $10M | +0.10% |
Common-stock position only; options are excluded. Quarters where the fund filed no 13F or reported no position are absent. See Sg Americas Securities, LLC’s full portfolio or all institutional holders of BIIB.