Squarepoint
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Squarepoint’s Biogen BIIB Stock Holding History

Squarepoint’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
-5,200
Closed -$915K – 4282
2025
Q4 		$915K Sell
5,200
-7,800
-60% -$1.27M ﹤0.01% 2698
2025
Q3 		$1.82M Sell
13,000
-31,900
-71% -$4.31M ﹤0.01% 2180
2025
Q2 		$5.64M Buy
44,900
+33,300
+287% +$4.15M 0.01% 1377
2025
Q1 		$1.59M Buy
11,600
+3,600
+45% +$515K ﹤0.01% 2282
2024
Q4 		$1.22M Buy
8,000
+6,900
+627% +$1.16M ﹤0.01% 2869
2024
Q3 		$213K Buy
+1,100
New +$230K ﹤0.01% 3647
2024
Q2 		– Sell
-7,800
Closed -$1.68M – 4066
2024
Q1 		$1.68M Buy
7,800
+2,100
+37% +$492K ﹤0.01% 2206
2023
Q4 		$1.47M Sell
5,700
-13,500
-70% -$3.32M ﹤0.01% 2231
2023
Q3 		$4.93M Buy
+19,200
New +$5.14M 0.01% 1190
2023
Q2 		– Sell
-2,200
Closed -$612K – 3574
2023
Q1 		$612K Sell
2,200
-63,400
-97% -$17.5M ﹤0.01% 2183
2022
Q4 		$18.2M Buy
+65,600
New +$18.5M 0.07% 285
2022
Q3 		– Sell
-5,400
Closed -$1.1M – 2998
2022
Q2 		$1.1M Buy
5,400
+700
+15% +$143K 0.01% 1539
2022
Q1 		$990K Sell
4,700
-172,700
-97% -$37.6M ﹤0.01% 1596
2021
Q4 		$42.6M Sell
177,400
-11,000
-6% -$2.83M 0.11% 149
2021
Q3 		$53.3M Buy
188,400
+5,400
+3% +$1.77M 0.15% 127
2021
Q2 		$63.4M Buy
183,000
+167,800
+1,104% +$50.8M 0.24% 79
2021
Q1 		$4.25M Buy
+15,200
New +$4.1M 0.02% 699

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

Squarepoint's BIIB Position: Q1 2026 in Review

Squarepoint reduced its Biogen (BIIB) stake by 75% in Q1 2026, selling an estimated $20.3M and leaving 36,053 shares worth $6.61M. The position accounts for 0.01% of the portfolio, ranked #1310.

Squarepoint first reported a position in BIIB in Q1 2015 and has held it in 35 quarters since. The position peaked at $67.9M in Q1 2024. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Squarepoint held 36,053 shares of Biogen worth $6.61M as of Q1 2026.
  • Squarepoint sold 110,355 Biogen shares in Q1 2026, an estimated $20.3M.
  • Biogen made up 0.01% of Squarepoint's portfolio in Q1 2026, its #1310 holding.
  • Squarepoint first reported a position in Biogen in Q1 2015 and has held it in 35 quarters since.
  • Squarepoint's Biogen position peaked at $67.9M in Q1 2024.
  • 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Squarepoint's 13F filing for Q1 2026, filed 15 May 2026.