SSA
BIIB icon

Schonfeld Strategic Advisors’s Biogen BIIB Stock Holding History

Schonfeld Strategic Advisors’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
2022
Q3 		– Sell
-62,000
Closed -$12.6M – 2948
2022
Q2 		$12.6M Hold
62,000
– – 0.12% 223
2022
Q1 		$13.1M Buy
+62,000
New +$13.5M 0.12% 209
2021
Q1 		– Sell
-30,000
Closed -$7.35M – 1801
2020
Q4 		$7.35M Buy
30,000
+10,000
+50% +$2.58M 0.1% 294
2020
Q3 		$5.67M Buy
+20,000
New +$5.58M 0.11% 257

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

Schonfeld Strategic Advisors's BIIB Position: Q1 2026 in Review

Schonfeld Strategic Advisors reduced its Biogen (BIIB) stake by 54% in Q1 2026, selling an estimated $10.7M and leaving 48,828 shares worth $8.95M. The position accounts for 0.06% of the portfolio, ranked #328.

Schonfeld Strategic Advisors first reported a position in BIIB in Q1 2016 and has held it in 36 quarters since. The position peaked at $44.8M in Q3 2025. 1,004 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Schonfeld Strategic Advisors held 48,828 shares of Biogen worth $8.95M as of Q1 2026.
  • Schonfeld Strategic Advisors sold 58,240 Biogen shares in Q1 2026, an estimated $10.7M.
  • Biogen made up 0.06% of Schonfeld Strategic Advisors's portfolio in Q1 2026, its #328 holding.
  • Schonfeld Strategic Advisors first reported a position in Biogen in Q1 2016 and has held it in 36 quarters since.
  • Schonfeld Strategic Advisors's Biogen position peaked at $44.8M in Q3 2025.
  • 1,004 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Schonfeld Strategic Advisors's 13F filing for Q1 2026, filed 15 May 2026.