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

VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

BlackRock's BSX Position: Q1 2026 in Review

BlackRock reduced its Boston Scientific (BSX) stake by 3.1% in Q1 2026, selling an estimated $333M and leaving 131,822,037 shares worth $8.27B. The position accounts for 0.14% of the portfolio, ranked #118.

BlackRock first reported a position in BSX in Q2 2013 and has held it in 52 quarters since. The position peaked at $15.8B in Q2 2025. 1,664 funds tracked by Wall St. Rank hold BSX as of Q1 2026.

  • BlackRock held 131,822,037 shares of Boston Scientific worth $8.27B as of Q1 2026.
  • BlackRock sold 4,165,208 Boston Scientific shares in Q1 2026, an estimated $333M.
  • Boston Scientific made up 0.14% of BlackRock's portfolio in Q1 2026, its #118 holding.
  • BlackRock first reported a position in Boston Scientific in Q2 2013 and has held it in 52 quarters since.
  • BlackRock's Boston Scientific position peaked at $15.8B in Q2 2025.
  • 1,664 funds tracked by Wall St. Rank held Boston Scientific as of Q1 2026.

Based on BlackRock's 13F filing for Q1 2026, filed 13 May 2026.