XT
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XTX Topco’s Boston Scientific BSX Stock Holding History

XTX Topco’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
Q2 		$24.8M Buy
580,370
+290,700
+100% +$15.8M 0.32% 10
2026
Q1 		$18.2M Buy
289,670
+233,385
+415% +$18.7M 0.32% 10
2025
Q4 		$5.37M Buy
56,285
+6,347
+13% +$622K 0.14% 110
2025
Q3 		$4.88M Buy
+49,938
New +$5.17M 0.25% 32
2025
Q2 		– Sell
-66,516
Closed -$6.71M – 2407
2025
Q1 		$6.71M Buy
+66,516
New +$6.7M 0.34% 20
2024
Q4 		– Sell
-13,532
Closed -$1.13M – 2326
2024
Q3 		$1.13M Buy
+13,532
New +$1.07M 0.08% 370
2023
Q3 		– Sell
-31,671
Closed -$1.71M – 1587
2023
Q2 		$1.71M Buy
+31,671
New +$1.65M 0.31% 19
2023
Q1 		– Sell
-9,261
Closed -$429K – 1294
2022
Q4 		$429K Buy
+9,261
New +$401K 0.09% 374
2022
Q2 		– Sell
-6,967
Closed -$309K – 864
2022
Q1 		$309K Buy
+6,967
New +$302K 0.14% 258
2021
Q3 		– Sell
-26,052
Closed -$1.11M – 714
2021
Q2 		$1.11M Buy
+26,052
New +$1.1M 0.38% 28

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

XTX Topco's BSX Position: Q2 2026 in Review

XTX Topco increased its Boston Scientific (BSX) stake by 100% in Q2 2026, buying an estimated $15.8M and bringing the position to 580,370 shares worth $24.8M. The position accounts for 0.32% of the portfolio, ranked #10.

XTX Topco first reported a position in BSX in Q2 2021 and has held it in 10 quarters since. 1,477 funds tracked by Wall St. Rank hold BSX as of Q2 2026.

  • XTX Topco held 580,370 shares of Boston Scientific worth $24.8M as of Q2 2026.
  • XTX Topco bought 290,700 Boston Scientific shares in Q2 2026, an estimated $15.8M.
  • Boston Scientific made up 0.32% of XTX Topco's portfolio in Q2 2026, its #10 holding.
  • XTX Topco first reported a position in Boston Scientific in Q2 2021 and has held it in 10 quarters since.
  • 1,477 funds tracked by Wall St. Rank held Boston Scientific as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.