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BIIB · Unknown

BIOGEN INC

USA Unknown Filing: 2025-12-31
7
Tracked Holders
Limited info. BIOGEN INC is not currently in our model portfolio, but 7 tracked investors hold it. We're showing what we know from their latest 13F filings.
7
Investors
1
New positions
1
Increasing
4
Decreasing
1
Unchanged
Price History
Loading price data...
Return: High: Low:
Who's Holding This Stock
Position sizes and recent activity from tracked institutional investors
Glenview Capital Mgmt (Robbins)
Trust weight: 1.2×
New position
% of portfolio
1.1%
Position change
NEW
1.1% of Glenview Capital Mgmt's portfolio
Gotham Asset Mgmt (Greenblatt)
Trust weight: 1.1×
Increased +2%
% of portfolio
0.2%
Position change
+2%
0.2% of Gotham Asset Mgmt's portfolio
Point72 (Steve Cohen)
Trust weight: 1.1×
Decreased −27%
% of portfolio
0.8%
Position change
−27%
0.8% of Point72's portfolio
Millennium Management (Englander)
Trust weight: 1.0×
Unchanged
% of portfolio
0.1%
Position change
—
0.1% of Millennium Management's portfolio
AQR Capital Management
Trust weight: 1.0×
Decreased −14%
% of portfolio
0.1%
Position change
−14%
0.1% of AQR Capital Management's portfolio
D.E. Shaw & Co
Trust weight: 1.0×
Decreased −89%
% of portfolio
0.0%
Position change
−89%
0.0% of D.E. Shaw & Co's portfolio
Citadel Advisors
Trust weight: 1.0×
Decreased −89%
% of portfolio
0.0%
Position change
−89%
0.0% of Citadel Advisors's portfolio
Portfolio Allocation
How much of each investor's portfolio is allocated to BIOGEN INC
⚠ Disclaimer: This page is for informational purposes only. Holdings data from SEC EDGAR 13F filings, delayed up to 135 days. Not a recommendation to buy or sell BIOGEN INC or any security.

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