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Lee Ainslie’s Biogen BIIB Stock Holding History

Lee Ainslie’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
Q1 		– Sell
-1,600
Closed -$414K – 427
2023
Q4 		$414K Buy
+1,600
New +$393K 0.01% 225
2023
Q3 		– Sell
-983
Closed -$280K – 326
2023
Q2 		$280K Buy
+983
New +$293K 0.01% 360
2021
Q4 		– Sell
-3,112
Closed -$881K – 350
2021
Q3 		$881K Buy
+3,112
New +$1.02M 0.01% 340
2020
Q4 		– Sell
-1,436
Closed -$407K – 680
2020
Q3 		$407K Sell
1,436
-3,065
-68% -$855K 0.01% 436
2020
Q2 		$1.2M Buy
+4,501
New +$1.35M 0.03% 282
2019
Q4 		– Sell
-4,919
Closed -$1.15M – 352
2019
Q3 		$1.15M Buy
+4,919
New +$1.15M 0.02% 265
2017
Q3 		– Sell
-15,230
Closed -$4.13M – 186
2017
Q2 		$4.13M Buy
15,230
+5,620
+58% +$1.49M 0.05% 46
2017
Q1 		$2.63M Sell
9,610
-1,270
-12% -$359K 0.03% 90
2016
Q4 		$3.08M Buy
10,880
+500
+5% +$148K 0.04% 77
2016
Q3 		$3.25M Sell
10,380
-630
-6% -$187K 0.04% 47
2016
Q2 		$2.66M Buy
11,010
+1,640
+18% +$432K 0.04% 76
2016
Q1 		$2.44M Buy
+9,370
New +$2.48M 0.04% 56

Other funds holding BIIB

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Lee Ainslie's BIIB Position: Q1 2024 in Review

Lee Ainslie sold out of Biogen (BIIB) in Q1 2024, closing a stake of 1,600 shares — an estimated $414K sold.

Lee Ainslie first reported a position in BIIB in Q1 2016 and held it in 12 quarters. The position peaked at $4.13M in Q2 2017. 954 funds tracked by Wall St. Rank hold BIIB as of Q1 2024.

  • Lee Ainslie reported no remaining Biogen position as of Q1 2024 after selling out during the quarter.
  • Lee Ainslie sold 1,600 Biogen shares in Q1 2024, an estimated $414K.
  • Lee Ainslie first reported a position in Biogen in Q1 2016 and held it in 12 quarters.
  • Lee Ainslie's Biogen position peaked at $4.13M in Q2 2017.
  • 954 funds tracked by Wall St. Rank held Biogen as of Q1 2024.

Based on Maverick Capital's 13F filing for Q1 2024, filed 15 May 2024.