Vontobel Holding
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Vontobel Holding’s Biogen BIIB Stock Holding History

Vontobel Holding’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
-4,000
Closed -$704K – 1229
2025
Q4 		$704K Buy
+4,000
New +$653K ﹤0.01% 875

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

Vontobel Holding's BIIB Position: Q1 2026 in Review

Vontobel Holding increased its Biogen (BIIB) stake by 39% in Q1 2026, buying an estimated $713K and bringing the position to 13,710 shares worth $2.51M. The position accounts for 0.01% of the portfolio, ranked #488.

Vontobel Holding first reported a position in BIIB in Q4 2020 and has held it in 22 quarters since. The position peaked at $23.7M in Q4 2020. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Vontobel Holding held 13,710 shares of Biogen worth $2.51M as of Q1 2026.
  • Vontobel Holding bought 3,869 Biogen shares in Q1 2026, an estimated $713K.
  • Biogen made up 0.01% of Vontobel Holding's portfolio in Q1 2026, its #488 holding.
  • Vontobel Holding first reported a position in Biogen in Q4 2020 and has held it in 22 quarters since.
  • Vontobel Holding's Biogen position peaked at $23.7M in Q4 2020.
  • 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Vontobel Holding's 13F filing for Q1 2026, filed 8 May 2026.