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MBB Public Markets’s Biogen BIIB Stock Holding History

MBB Public Markets’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
2025
Q3 		– Sell
-1,729
Closed -$217K – 92
2025
Q2 		$217K Sell
1,729
-421
-20% -$52.5K 0.02% 480
2025
Q1 		$294K Buy
+2,150
New +$307K 0.03% 485
2024
Q4 		– Sell
-1,260
Closed -$244K – 140
2024
Q3 		$244K Sell
1,260
-9,195
-88% -$1.92M 0.01% 538
2024
Q2 		$2.42M Buy
+10,455
New +$2.27M 0.05% 318
2022
Q1 		– Sell
-1,060
Closed -$254K – 128
2021
Q4 		$254K Buy
+1,060
New +$273K 0.01% 400

Other funds holding BIIB

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

MBB Public Markets's BIIB Position: Q3 2025 in Review

MBB Public Markets sold out of Biogen (BIIB) in Q3 2025, closing a stake of 1,729 shares — an estimated $217K sold.

MBB Public Markets first reported a position in BIIB in Q4 2021 and held it in 5 quarters. The position peaked at $2.42M in Q2 2024. 908 funds tracked by Wall St. Rank hold BIIB as of Q3 2025.

  • MBB Public Markets reported no remaining Biogen position as of Q3 2025 after selling out during the quarter.
  • MBB Public Markets sold 1,729 Biogen shares in Q3 2025, an estimated $217K.
  • MBB Public Markets first reported a position in Biogen in Q4 2021 and held it in 5 quarters.
  • MBB Public Markets's Biogen position peaked at $2.42M in Q2 2024.
  • 908 funds tracked by Wall St. Rank held Biogen as of Q3 2025.

Based on MBB Public Markets's 13F filing for Q3 2025, filed 14 Nov 2025.