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Laurion Capital Management’s Biogen BIIB Stock Holding History

Laurion Capital Management’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
-5,033
Closed -$886K – 376
2025
Q4 		$886K Buy
+5,033
New +$822K 0.03% 146
2022
Q2 		– Sell
-1,400
Closed -$295K – 489
2022
Q1 		$295K Buy
+1,400
New +$304K ﹤0.01% 436
2021
Q2 		– Sell
-4,039
Closed -$1.13M – 724
2021
Q1 		$1.13M Sell
4,039
-1,202
-23% -$324K 0.01% 482
2020
Q4 		$1.28M Buy
+5,241
New +$1.35M 0.01% 386
2020
Q3 		– Sell
-1,878
Closed -$502K – 848
2020
Q2 		$502K Buy
+1,878
New +$565K 0.01% 620
2019
Q4 		– Sell
-50,255
Closed -$13.9M – 906
2019
Q3 		$11.7M Buy
50,255
+35,292
+236% +$8.22M 0.09% 218
2019
Q2 		$3.5M Buy
+14,963
New +$3.46M 0.03% 312
2019
Q1 		– Sell
-131,657
Closed -$39.6M – 866
2018
Q4 		$39.6M Buy
131,657
+121,651
+1,216% +$38.8M 0.7% 21
2018
Q3 		$3.54M Buy
10,006
+4,806
+92% +$1.65M 0.03% 429
2018
Q2 		$1.51M Buy
5,200
+1,100
+27% +$309K 0.01% 670
2018
Q1 		$1.12M Sell
4,100
-6,823
-62% -$2.12M 0.01% 803
2017
Q4 		$3.48M Sell
10,923
-14,408
-57% -$4.62M 0.02% 628
2017
Q3 		$7.93M Sell
25,331
-4,992
-16% -$1.48M 0.04% 374
2017
Q2 		$8.23M Sell
30,323
-400
-1% -$106K 0.05% 370
2017
Q1 		$8.4M Buy
30,723
+13,979
+83% +$3.95M 0.06% 326
2016
Q4 		$4.75M Sell
16,744
-66,106
-80% -$19.6M 0.05% 365
2016
Q3 		$25.9M Buy
82,850
+77,850
+1,557% +$23.1M 0.24% 93
2016
Q2 		$1.21M Buy
5,000
+1,800
+56% +$474K 0.02% 460
2016
Q1 		$833K Buy
+3,200
New +$845K 0.01% 455

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

Laurion Capital Management's BIIB Position: Q1 2026 in Review

Laurion Capital Management sold out of Biogen (BIIB) in Q1 2026, closing a stake of 5,033 shares — an estimated $886K sold.

Laurion Capital Management first reported a position in BIIB in Q1 2016 and held it in 19 quarters. The position peaked at $39.6M in Q4 2018. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Laurion Capital Management reported no remaining Biogen position as of Q1 2026 after selling out during the quarter.
  • Laurion Capital Management sold 5,033 Biogen shares in Q1 2026, an estimated $886K.
  • Laurion Capital Management first reported a position in Biogen in Q1 2016 and held it in 19 quarters.
  • Laurion Capital Management's Biogen position peaked at $39.6M in Q4 2018.
  • 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Laurion Capital Management's 13F filing for Q1 2026, filed 14 May 2026.