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Aljian Capital Management’s Biogen BIIB Stock Holding History

Aljian 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 		$466K Buy
2,540
+125
+5% +$23K 0.1% 92
2025
Q4 		$425K Hold
2,415
– – 0.08% 92
2025
Q3 		$338K Sell
2,415
-125
-5% -$16.9K 0.07% 101
2025
Q2 		$319K Hold
2,540
– – 0.07% 104
2025
Q1 		$348K Sell
2,540
-20
-0.8% -$2.86K 0.08% 98
2024
Q4 		$391K Sell
2,560
-134
-5% -$22.6K 0.09% 91
2024
Q3 		$522K Buy
+2,694
New +$564K 0.12% 77

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

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

Aljian Capital Management increased its Biogen (BIIB) stake by 5.2% in Q1 2026, buying an estimated $23K and bringing the position to 2,540 shares worth $466K. The position accounts for 0.1% of the portfolio, ranked #92.

Aljian Capital Management first reported a position in BIIB in Q3 2024 and has held it in 7 quarters since. The position peaked at $522K in Q3 2024. 1,004 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Aljian Capital Management held 2,540 shares of Biogen worth $466K as of Q1 2026.
  • Aljian Capital Management bought 125 Biogen shares in Q1 2026, an estimated $23K.
  • Biogen made up 0.1% of Aljian Capital Management's portfolio in Q1 2026, its #92 holding.
  • Aljian Capital Management first reported a position in Biogen in Q3 2024 and has held it in 7 quarters since.
  • Aljian Capital Management's Biogen position peaked at $522K in Q3 2024.
  • 1,004 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Aljian Capital Management's 13F filing for Q1 2026, filed 29 Apr 2026.