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Two Sigma Securities’s Biogen BIIB Stock Holding History

Two Sigma Securities’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
2024
Q3 		– Sell
-12,800
Closed -$2.97M – 2877
2024
Q2 		$2.97M Sell
12,800
-10,200
-44% -$2.22M 0.04% 541
2024
Q1 		$4.96M Buy
23,000
+20,400
+785% +$4.78M 0.05% 401
2023
Q4 		$673K Sell
2,600
-1,900
-42% -$467K 0.01% 1323
2023
Q3 		$1.16M Buy
4,500
+3,000
+200% +$802K 0.01% 948
2023
Q2 		$427K Buy
+1,500
New +$447K 0.01% 1554
2022
Q3 		– Sell
-20,800
Closed -$4.24M – 2609
2022
Q2 		$4.24M Buy
20,800
+11,900
+134% +$2.43M 0.15% 149
2022
Q1 		$1.87M Buy
+8,900
New +$1.94M 0.07% 369
2021
Q1 		– Sell
-2,600
Closed -$637K – 905
2020
Q4 		$637K Buy
2,600
+1,200
+86% +$310K 0.02% 580
2020
Q3 		$397K Sell
1,400
-14,700
-91% -$4.1M 0.01% 718
2020
Q2 		$4.31M Buy
16,100
+15,100
+1,510% +$4.54M 0.1% 113
2020
Q1 		$316K Sell
1,000
-16,000
-94% -$4.86M 0.01% 825
2019
Q4 		$5.04M Sell
17,000
-800
-4% -$222K 0.03% 394
2019
Q3 		$4.14M Buy
17,800
+100
+0.6% +$23.3K 0.04% 361
2019
Q2 		$4.14M Buy
17,700
+16,400
+1,262% +$3.79M 0.04% 270
2019
Q1 		$307K Sell
1,300
-4,700
-78% -$1.48M ﹤0.01% 1177
2018
Q4 		$1.81M Sell
6,000
-36,900
-86% -$11.8M 0.02% 403
2018
Q3 		$15.2M Buy
42,900
+8,800
+26% +$3.03M 0.1% 136
2018
Q2 		$9.9M Buy
34,100
+8,700
+34% +$2.45M 0.05% 279
2018
Q1 		$6.96M Buy
+25,400
New +$7.88M 0.04% 378

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

Two Sigma Securities's BIIB Position: Q1 2026 in Review

Two Sigma Securities reduced its Biogen (BIIB) stake by 75% in Q1 2026, selling an estimated $755K and leaving 1,335 shares worth $245K. The position accounts for 0.03% of the portfolio, ranked #923.

Two Sigma Securities first reported a position in BIIB in Q4 2015 and has held it in 23 quarters since. The position peaked at $2.49M in Q3 2018. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Two Sigma Securities held 1,335 shares of Biogen worth $245K as of Q1 2026.
  • Two Sigma Securities sold 4,095 Biogen shares in Q1 2026, an estimated $755K.
  • Biogen made up 0.03% of Two Sigma Securities's portfolio in Q1 2026, its #923 holding.
  • Two Sigma Securities first reported a position in Biogen in Q4 2015 and has held it in 23 quarters since.
  • Two Sigma Securities's Biogen position peaked at $2.49M in Q3 2018.
  • 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Two Sigma Securities's 13F filing for Q1 2026, filed 15 May 2026.