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 		$202K Sell
1,100
-7,900
-88% -$1.46M ﹤0.01% 3955
2025
Q4 		$1.58M Buy
9,000
+5,400
+150% +$882K ﹤0.01% 2224
2025
Q3 		$504K Sell
3,600
-4,200
-54% -$568K ﹤0.01% 3227
2025
Q2 		$980K Sell
7,800
-24,700
-76% -$3.08M ﹤0.01% 2676
2025
Q1 		$4.45M Buy
32,500
+10,500
+48% +$1.5M 0.01% 1490
2024
Q4 		$3.36M Buy
22,000
+10,000
+83% +$1.69M ﹤0.01% 1956
2024
Q3 		$2.33M Sell
12,000
-15,100
-56% -$3.16M ﹤0.01% 1961
2024
Q2 		$6.28M Buy
+27,100
New +$5.89M 0.01% 1223
2024
Q1 		– Sell
-4,900
Closed -$1.27M – 4035
2023
Q4 		$1.27M Sell
4,900
-14,300
-74% -$3.51M ﹤0.01% 2353
2023
Q3 		$4.93M Buy
+19,200
New +$5.14M 0.01% 1191
2023
Q2 		– Sell
-2,200
Closed -$612K – 3575
2023
Q1 		$612K Sell
2,200
-160,800
-99% -$44.5M ﹤0.01% 2184
2022
Q4 		$45.1M Sell
163,000
-200
-0.1% -$56.5K 0.18% 102
2022
Q3 		$43.6M Sell
163,200
-5,500
-3% -$1.17M 0.22% 82
2022
Q2 		$34.4M Buy
168,700
+5,700
+3% +$1.17M 0.19% 117
2022
Q1 		$34.3M Sell
163,000
-411,200
-72% -$89.4M 0.15% 143
2021
Q4 		$138M Sell
574,200
-131,300
-19% -$33.8M 0.36% 41
2021
Q3 		$200M Buy
705,500
+367,400
+109% +$120M 0.57% 36
2021
Q2 		$117M Buy
338,100
+314,200
+1,315% +$95.2M 0.45% 37
2021
Q1 		$6.69M Buy
+23,900
New +$6.45M 0.04% 511

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.