BlackRock
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BlackRock’s Boston Scientific BSX Stock Holding History

BlackRock’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
2024
Q3 		– Sell
-233,000
Closed -$17.9M – 5236
2024
Q2 		$17.9M Buy
+233,000
New +$17.1M ﹤0.01% 3052

Other funds holding BSX

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
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return

BlackRock's BSX Position: Q2 2026 in Review

BlackRock reduced its Boston Scientific (BSX) stake by 1.6% in Q2 2026, selling an estimated $116M and leaving 129,680,916 shares worth $5.53B. The position accounts for 0.08% of the portfolio, ranked #204.

BlackRock first reported a position in BSX in Q2 2013 and has held it in 53 quarters since. The position peaked at $15.8B in Q2 2025. 1,476 funds tracked by Wall St. Rank hold BSX as of Q2 2026.

  • BlackRock held 129,680,916 shares of Boston Scientific worth $5.53B as of Q2 2026.
  • BlackRock sold 2,141,121 Boston Scientific shares in Q2 2026, an estimated $116M.
  • Boston Scientific made up 0.08% of BlackRock's portfolio in Q2 2026, its #204 holding.
  • BlackRock first reported a position in Boston Scientific in Q2 2013 and has held it in 53 quarters since.
  • BlackRock's Boston Scientific position peaked at $15.8B in Q2 2025.
  • 1,476 funds tracked by Wall St. Rank held Boston Scientific as of Q2 2026.

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