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BIIBBIIB
Showing 8 of 15 quarters

Position history for WELLINGTON MANAGEMENT GROUP LLPWELLINGTON MANAGEMENT GROUP LLP's holdings in BIOGEN INC

WELLINGTON MANAGEMENT GROUP LLP holds 3.1M shares of BIIB (BIOGEN INC), worth $673.6M as of 2026-Q2. The position was increased (+5.3% shares). BIIB represents 0.1% of WELLINGTON MANAGEMENT GROUP LLP's portfolio.

Current Value

$673.6M

Current Shares

3.1M

Total Value Change

-$321.1M

Total Shares Change

-2M

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Increased
3.1M
+5.3%
$673.6M0.1%$216.06
40
2026-Q1
Decreased
3M
-16.6%
$543M0.1%$183.33
0
2025-Q4
Decreased
3.6M
-16.4%
$625M0.1%$175.99
0
2025-Q3
Decreased
4.2M
-11.5%
$594.9M0.1%$140.08
0
2025-Q2
Increased
4.8M
+2.7%
$602.6M0.1%$125.59
39
2025-Q1
Decreased
4.7M
-5.2%
$639.4M0.1%$136.84
0
2024-Q4
Decreased
4.9M
-3.9%
$754M0.1%$152.92
0
2024-Q3
Decreased
5.1M
-0.7%
$994.6M0.2%$193.84
0

Other major holders of BIIB: BNP PARIBAS FINANCIAL MARKETS, PRIMECAP MANAGEMENT CO/CA/

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