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Brooklyn Investment Group’s Biogen BIIB Stock Holding History

Brooklyn Investment Group’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 		$1.34M Buy
7,323
+1,621
+28% +$299K 0.04% 423
2025
Q4 		$1.01M Buy
5,702
+1,446
+34% +$236K 0.05% 346
2025
Q3 		$537K Buy
4,256
+2
+0% +$270 0.07% 262
2025
Q2 		$534K Buy
4,254
+3,325
+358% +$414K 0.07% 267
2025
Q1 		$127K Buy
929
+309
+50% +$44.2K 0.03% 461
2024
Q4 		$94.8K Buy
620
+517
+502% +$87.2K 0.03% 380
2024
Q3 		$20K Buy
+103
New +$21.5K 0.01% 649

Other funds holding BIIB

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Brooklyn Investment Group's BIIB Position: Q1 2026 in Review

Brooklyn Investment Group increased its Biogen (BIIB) stake by 28% in Q1 2026, buying an estimated $299K and bringing the position to 7,323 shares worth $1.34M. The position accounts for 0.04% of the portfolio, ranked #423.

Brooklyn Investment Group first reported a position in BIIB in Q3 2024 and has held it in 7 quarters since. 1,009 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Brooklyn Investment Group held 7,323 shares of Biogen worth $1.34M as of Q1 2026.
  • Brooklyn Investment Group bought 1,621 Biogen shares in Q1 2026, an estimated $299K.
  • Biogen made up 0.04% of Brooklyn Investment Group's portfolio in Q1 2026, its #423 holding.
  • Brooklyn Investment Group first reported a position in Biogen in Q3 2024 and has held it in 7 quarters since.
  • 1,009 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Brooklyn Investment Group's 13F filing for Q1 2026, filed 29 Apr 2026.