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Aster Capital Management’s Biogen BIIB Stock Holding History

Aster Capital Management’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 		$54.5K Sell
398
-10,089
-96% -$1.86M 0.02% 423
2025
Q4 		$1.85M Buy
+10,487
New +$1.71M 0.81% 18
2025
Q1 		– Sell
-18
Closed -$2.75K – 1265
2024
Q4 		$2.75K Buy
+18
New +$3.04K ﹤0.01% 932

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

Aster Capital Management's BIIB Position: Q1 2026 in Review

Aster Capital Management reduced its Biogen (BIIB) stake by 96% in Q1 2026, selling an estimated $1.86M and leaving 398 shares worth $54.5K. The position accounts for 0.02% of the portfolio, ranked #423.

Aster Capital Management first reported a position in BIIB in Q4 2024 and has held it in 3 quarters since. The position peaked at $1.85M in Q4 2025. 1,004 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Aster Capital Management held 398 shares of Biogen worth $54.5K as of Q1 2026.
  • Aster Capital Management sold 10,089 Biogen shares in Q1 2026, an estimated $1.86M.
  • Biogen made up 0.02% of Aster Capital Management's portfolio in Q1 2026, its #423 holding.
  • Aster Capital Management first reported a position in Biogen in Q4 2024 and has held it in 3 quarters since.
  • Aster Capital Management's Biogen position peaked at $1.85M in Q4 2025.
  • 1,004 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Aster Capital Management's 13F filing for Q1 2026, filed 13 May 2026.