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Quadrature Capital’s Boston Scientific BSX Stock Holding History

Quadrature Capital’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 		$35.5M Buy
830,712
+160,621
+24% +$8.72M 0.3% 71
2026
Q1 		$42M Buy
+670,091
New +$53.6M 0.5% 44
2025
Q4 		– Sell
-30,127
Closed -$2.94M – 1279
2025
Q3 		$2.94M Sell
30,127
-77,751
-72% -$8.05M 0.03% 247
2025
Q2 		$11.6M Sell
107,878
-117,718
-52% -$11.9M 0.2% 108
2025
Q1 		$22.7M Buy
225,596
+205,915
+1,046% +$20.7M 0.5% 45
2024
Q4 		$1.76M Sell
19,681
-37,578
-66% -$3.31M 0.04% 326
2024
Q3 		$4.8M Buy
+57,259
New +$4.51M 0.11% 150
2023
Q3 		– Sell
-12,462
Closed -$674K – 1008
2023
Q2 		$674K Buy
+12,462
New +$651K 0.01% 507
2021
Q1 		– Sell
-267,731
Closed -$9.63M – 886
2020
Q4 		$9.63M Buy
267,731
+32,936
+14% +$1.19M 0.47% 44
2020
Q3 		$8.97M Buy
234,795
+187,922
+401% +$7.24M 0.52% 46
2020
Q2 		$1.65M Buy
+46,873
New +$1.69M 0.19% 166
2020
Q1 		– Sell
-41,802
Closed -$1.89M – 518
2019
Q4 		$1.89M Buy
+41,802
New +$1.75M 0.07% 220
2018
Q1 		– Sell
-40,705
Closed -$1.01M – 602
2017
Q4 		$1.01M Buy
+40,705
New +$1.12M 0.09% 219
2016
Q4 		– Sell
-402,560
Closed -$9.58M – 623
2016
Q3 		$9.58M Buy
+402,560
New +$9.6M 0.83% 23

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

Quadrature Capital's BSX Position: Q2 2026 in Review

Quadrature Capital increased its Boston Scientific (BSX) stake by 24% in Q2 2026, buying an estimated $8.72M and bringing the position to 830,712 shares worth $35.5M. The position accounts for 0.3% of the portfolio, ranked #71.

Quadrature Capital first reported a position in BSX in Q3 2016 and has held it in 14 quarters since. The position peaked at $42M in Q1 2026. 1,468 funds tracked by Wall St. Rank hold BSX as of Q2 2026.

  • Quadrature Capital held 830,712 shares of Boston Scientific worth $35.5M as of Q2 2026.
  • Quadrature Capital bought 160,621 Boston Scientific shares in Q2 2026, an estimated $8.72M.
  • Boston Scientific made up 0.3% of Quadrature Capital's portfolio in Q2 2026, its #71 holding.
  • Quadrature Capital first reported a position in Boston Scientific in Q3 2016 and has held it in 14 quarters since.
  • Quadrature Capital's Boston Scientific position peaked at $42M in Q1 2026.
  • 1,468 funds tracked by Wall St. Rank held Boston Scientific as of Q2 2026.

Based on Quadrature Capital's 13F filing for Q2 2026, filed 7 Aug 2026.