BIIB - BIOGEN INC
This page shows which of the focused investors we track hold BIIB and how their positions changed, so you can see how much conviction the group has in the stock.
In Q1 2026 it was held by 4 managers with an aggregate reported value of $161.23M, which is 0.01% of the combined portfolio.
As of Q1 2026, 4 tracked institutional managers held BIIB (BIOGEN INC) with an aggregate reported value of $161.23M — 0.01% of the combined AlphaBaseline portfolio.
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- Source
- Curated SEC 13F filings
- Period
- Q1 2026
- Ticker
- BIIB
13F data is delayed and excludes shorts/non-13F assets.
Long holders
| 1 | Samantha McLemore - Patient Capital Management | 2.60% | Reduce -34.1% | 379,741 | $69.62M |
| 2 | Sarah Ketterer - Causeway Capital Management | 0.63% | Reduce -46.1% | 280,783 | $51.48M |
| 3 | Hillman Value Fund - Hillman Value Fund | 3.76% | Reduce -3.2% | 29,540 | $5.42M |
Call holders — bullish via leverage
1 manager holds call options on BIIB — a right to buy at strike. Notional value, not premium.
| 1 | Samantha McLemore - Patient Capital Management | New | 1,894 | $34.72M |
Loading holder history for BIIB…