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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
2020
Q2 		– Sell
-20,000
Closed -$6.33M – 920
2020
Q1 		$6.33M Sell
20,000
-10,800
-35% -$3.28M 0.07% 212
2019
Q4 		$9.14M Sell
30,800
-174,000
-85% -$48.3M 0.07% 231
2019
Q3 		$47.7M Sell
204,800
-93,400
-31% -$21.7M 0.35% 60
2019
Q2 		$69.7M Buy
+298,200
New +$68.9M 0.69% 35
2019
Q1 		– Sell
-176,600
Closed -$53.1M – 867
2018
Q4 		$53.1M Buy
176,600
+136,700
+343% +$43.6M 0.94% 10
2018
Q3 		$14.1M Buy
39,900
+29,900
+299% +$10.3M 0.14% 165
2018
Q2 		$2.9M Hold
10,000
– – 0.02% 496
2018
Q1 		$2.74M Sell
10,000
-55,000
-85% -$17.1M 0.02% 544
2017
Q4 		$20.7M Sell
65,000
-47,100
-42% -$15.1M 0.1% 199
2017
Q3 		$35.1M Buy
112,100
+47,100
+72% +$13.9M 0.16% 112
2017
Q2 		$17.6M Sell
65,000
-25,000
-28% -$6.61M 0.1% 203
2017
Q1 		$24.6M Buy
+90,000
New +$25.4M 0.18% 136
2016
Q4 		– Sell
-7,400
Closed -$2.32M – 1108
2016
Q3 		$2.32M Buy
+7,400
New +$2.19M 0.02% 460
2014
Q4 		– Sell
-30,000
Closed -$9.92M – 313
2014
Q3 		$9.92M Hold
30,000
– – 0.21% 111
2014
Q2 		$9.46M Buy
+30,000
New +$9.03M 0.2% 139

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.