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Position history for MWMARSHALL WACE, LLP's holdings in BIOGEN IDEC INC

MARSHALL WACE, LLP holds 12,595 shares of BIIB (BIOGEN IDEC INC), worth $2.7M as of 2026-Q2. The position was decreased (-94.5% shares). BIIB represents 0.0% of MARSHALL WACE, LLP's portfolio.

Current Value

$2.7M

Current Shares

12,595

Total Value Change

-$10.1M

Total Shares Change

-53,705

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q2
Latest
Decreased
12,595
-94.5%
$2.7M0.0%$216.06
0
2026-Q1
Decreased
229,879
-40.4%
$42.1M0.0%$184.02
0
2025-Q4
Decreased
385,928
-56.5%
$67.9M0.1%$176.40
0
2025-Q3
Increased
887,661
+434.9%
$124.3M0.1%$138.52
58
2025-Q2
Increased
165,955
+2712.8%
$20.8M0.0%$126.08
46
2025-Q1
Decreased
5,900
-92.6%
$807,3560.0%$138.37
0
2024-Q4
Increased
79,952
+20.6%
$12.2M0.0%$150.19
33
2024-Q3
New
66,300
-
$12.9M0.0%$194.67
39

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

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