DB
BSX icon

Dmitry Balyasny’s Boston Scientific BSX Stock Holding History

Dmitry Balyasny’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
-84,200
Closed -$8.03M – 2927
2025
Q4 		$8.03M Buy
84,200
+44,000
+109% +$4.31M 0.01% 1140
2025
Q3 		$3.92M Buy
40,200
+1,100
+3% +$114K 0.01% 1485
2025
Q2 		$4.2M Sell
39,100
-15,500
-28% -$1.57M 0.01% 1373
2025
Q1 		$5.51M Sell
54,600
-40,000
-42% -$4.03M 0.01% 1202
2024
Q4 		$8.45M Buy
94,600
+20,300
+27% +$1.79M 0.01% 1039
2024
Q3 		$6.23M Buy
74,300
+2,300
+3% +$181K 0.01% 1171
2024
Q2 		$5.54M Sell
72,000
-42,000
-37% -$3.07M 0.01% 1126
2024
Q1 		$7.81M Hold
114,000
– – 0.01% 1040
2023
Q4 		$6.59M Sell
114,000
-146,000
-56% -$7.79M 0.01% 1022
2023
Q3 		$13.7M Buy
+260,000
New +$13.6M 0.03% 718
2021
Q3 		– Sell
-19,000
Closed -$812K – 1962
2021
Q2 		$812K Buy
+19,000
New +$799K ﹤0.01% 1377

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
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 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
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Dmitry Balyasny's BSX Position: Q2 2026 in Review

Dmitry Balyasny reduced its Boston Scientific (BSX) stake by 95% in Q2 2026, selling an estimated $69.8M and leaving 71,324 shares worth $3.04M. The position accounts for ﹤0.01% of the portfolio, ranked #1616.

Dmitry Balyasny first reported a position in BSX in Q2 2013 and has held it in 37 quarters since. The position peaked at $290M in Q3 2024. 1,468 funds tracked by Wall St. Rank hold BSX as of Q2 2026.

  • Dmitry Balyasny held 71,324 shares of Boston Scientific worth $3.04M as of Q2 2026.
  • Dmitry Balyasny sold 1,284,809 Boston Scientific shares in Q2 2026, an estimated $69.8M.
  • Boston Scientific made up ﹤0.01% of Dmitry Balyasny's portfolio in Q2 2026, its #1616 holding.
  • Dmitry Balyasny first reported a position in Boston Scientific in Q2 2013 and has held it in 37 quarters since.
  • Dmitry Balyasny's Boston Scientific position peaked at $290M in Q3 2024.
  • 1,468 funds tracked by Wall St. Rank held Boston Scientific as of Q2 2026.

Based on Balyasny Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.