Position in BIIB
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$51,475,947
-$40,232,617 QoQ
Shares Held
280,783
-46.1% QoQ
Ownership
0.190%
of shares outstanding
% of Portfolio
0.65%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2024
6 quarters on record
Voting authority
Sole 67.90760124366504.ToString("F0")%
Shared 0.ToString("F0")%
None 32.09239875633496.ToString("F0")%
Common Shares in BIIB Over Time
Shares Held
Position Value (USD)
Position in Drug Manufacturers - General
Healthcare · as of Mar 31, 2026CAUSEWAY CAPITAL MANAGEMENT LLC holds $1,766,978,720 across 8 Drug Manufacturers - General names. BIIB ranks #4 (2.9% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AZN |
Astrazeneca PLC
|
7,421,749 | $1,463,717,337 | |
| 2 | MRK |
Merck & Co., Inc.
|
854,212 | $102,753,161 | |
| 3 | PFE |
Pfizer Inc
|
1,914,219 | $53,751,269 | |
| 4 | BIIB |
Biogen Inc.
This page
|
280,783 | $51,475,947 | |
| 5 | SNY |
Sanofi
|
1,064,516 | $51,288,380 | |
| 6 | NVO |
Novo Nordisk A S
|
1,174,213 | $43,152,327 | |
| 7 | GSK |
GSK plc
|
11,110 | $613,160 | |
| 8 | NVS |
Novartis AG
|
1,487 | $227,139 |
All Filings in BIIB
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6 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $51,475,947 | 280,783 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $91,708,564 | 521,101 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $79,497,921 | 567,518 | Shares | Sole | 2025-11-13 | |
| 2025-06-30 | $61,960,454 | 493,355 | Shares | Sole | 2025-08-13 | |
| 2025-03-31 | $59,322,466 | 433,517 | Shares | Sole | 2025-05-14 | |
| 2024-12-31 | $43,077,869 | 281,702 | Shares | Sole | 2025-02-13 | |
| No filing history on record for this holder in this stock. | ||||||