Alyeska Investment Group
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Alyeska Investment Group’s Boston Scientific BSX Stock Holding History

Alyeska Investment Group’s Portfolio BSX Stock Details BSX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-237,862
Closed -$22.7M – 627
2025
Q4 		$22.7M Buy
+237,862
New +$23.3M 0.06% 300
2025
Q2 		– Sell
-1,202,779
Closed -$121M – 573
2025
Q1 		$121M Sell
1,202,779
-438,655
-27% -$44.2M 0.48% 56
2024
Q4 		$147M Buy
1,641,434
+1,271,434
+344% +$112M 0.55% 34
2024
Q3 		$31M Sell
370,000
-92,803
-20% -$7.32M 0.16% 191
2024
Q2 		$35.6M Sell
462,803
-1,159,646
-71% -$84.9M 0.2% 140
2024
Q1 		$111M Sell
1,622,449
-738,912
-31% -$47.5M 0.68% 35
2023
Q4 		$137M Buy
2,361,361
+201,428
+9% +$10.8M 0.9% 20
2023
Q3 		$114M Buy
2,159,933
+1,459,933
+209% +$76.6M 0.77% 24
2023
Q2 		$37.9M Buy
+700,000
New +$36.6M 0.28% 119
2021
Q1 		– Sell
-42,040
Closed -$1.51M – 742
2020
Q4 		$1.51M Buy
+42,040
New +$1.52M 0.02% 392
2019
Q3 		– Sell
-27,357
Closed -$1.18M – 417
2019
Q2 		$1.18M Buy
+27,357
New +$1.05M 0.02% 359
2017
Q2 		– Sell
-210,199
Closed -$5.23M – 459
2017
Q1 		$5.23M Sell
210,199
-2,275,001
-92% -$55.3M 0.04% 310
2016
Q4 		$53.8M Buy
+2,485,200
New +$54.2M 0.44% 71

Other funds holding BSX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 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
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Alyeska Investment Group's BSX Position: Q1 2026 in Review

Alyeska Investment Group sold out of Boston Scientific (BSX) in Q1 2026, closing a stake of 237,862 shares — an estimated $22.7M sold.

Alyeska Investment Group first reported a position in BSX in Q4 2016 and held it in 13 quarters. The position peaked at $147M in Q4 2024. 1,681 funds tracked by Wall St. Rank hold BSX as of Q1 2026.

  • Alyeska Investment Group reported no remaining Boston Scientific position as of Q1 2026 after selling out during the quarter.
  • Alyeska Investment Group sold 237,862 Boston Scientific shares in Q1 2026, an estimated $22.7M.
  • Alyeska Investment Group first reported a position in Boston Scientific in Q4 2016 and held it in 13 quarters.
  • Alyeska Investment Group's Boston Scientific position peaked at $147M in Q4 2024.
  • 1,681 funds tracked by Wall St. Rank held Boston Scientific as of Q1 2026.

Based on Alyeska Investment Group's 13F filing for Q1 2026, filed 15 May 2026.