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BIIB
6 quarters

Position history for VANGUARD GROUP INC's holdings in BIOGEN INC

VANGUARD GROUP INC holds 17.4M shares of BIIB (BIOGEN INC), worth $3.1B as of 2025-Q4. The position was increased (+0.9% shares). BIIB represents 0.0% of VANGUARD GROUP INC's portfolio.

Current Value

$3.1B

Current Shares

17.4M

Total Value Change

-$162.4M

Total Shares Change

+768,585

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2025-Q4
Latest
Increased
17.4M
+0.9%
$3.1B0.0%$176.40
32
2025-Q3
Decreased
17.3M
-0.0%
$2.4B0.0%$138.52
0
2025-Q2
Increased
17.3M
+1.5%
$2.2B0.0%$126.08
32
2025-Q1
Increased
17M
+1.7%
$2.3B0.0%$138.37
32
2024-Q4
Increased
16.7M
+0.4%
$2.6B0.0%$150.19
32
2024-Q3
New
16.7M
-
$3.2B0.1%$194.67
44

Other major holders of BIIB: PRIMECAP MANAGEMENT CO/CA/

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