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Maven Securities’s Biogen BIIB Stock Holding History

Maven Securities’s Portfolio BIIB Stock Details BIIB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-13,069
Closed -$2.3M – 411
2025
Q4 		$2.3M Buy
+13,069
New +$2.14M 0.05% 287
2025
Q3 		– Sell
-2,404
Closed -$302K – 488
2025
Q2 		$302K Buy
+2,404
New +$300K 0.01% 696
2024
Q1 		– Sell
-1,709
Closed -$442K – 429
2023
Q4 		$442K Buy
+1,709
New +$420K 0.01% 694
2022
Q1 		– Sell
-8,350
Closed -$1.82M – 975
2021
Q4 		$2M Buy
+8,350
New +$2.15M 0.06% 195
2021
Q2 		– Sell
-3,495
Closed -$968K – 1063
2021
Q1 		$968K Buy
3,495
+2,597
+289% +$700K 0.04% 432
2020
Q4 		$220K Buy
+898
New +$232K 0.02% 491

Other funds holding BIIB

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return