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Capstone Capital Management’s Boston Scientific BSX Stock Holding History

Capstone Capital Management’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 		$608K Sell
14,240
-26,969
-65% -$1.46M 0.27% 116
2026
Q1 		$1.22M Buy
41,209
+35,116
+576% +$2.81M 1.23% 22
2025
Q4 		$581K Buy
+6,093
New +$597K 0.56% 59

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

Capstone Capital Management's BSX Position: Q2 2026 in Review

Capstone Capital Management reduced its Boston Scientific (BSX) stake by 65% in Q2 2026, selling an estimated $1.46M and leaving 14,240 shares worth $608K. The position accounts for 0.27% of the portfolio, ranked #116.

Capstone Capital Management first reported a position in BSX in Q4 2025 and has held it in 3 quarters since. The position peaked at $1.22M in Q1 2026. 1,470 funds tracked by Wall St. Rank hold BSX as of Q2 2026.

  • Capstone Capital Management held 14,240 shares of Boston Scientific worth $608K as of Q2 2026.
  • Capstone Capital Management sold 26,969 Boston Scientific shares in Q2 2026, an estimated $1.46M.
  • Boston Scientific made up 0.27% of Capstone Capital Management's portfolio in Q2 2026, its #116 holding.
  • Capstone Capital Management first reported a position in Boston Scientific in Q4 2025 and has held it in 3 quarters since.
  • Capstone Capital Management's Boston Scientific position peaked at $1.22M in Q1 2026.
  • 1,470 funds tracked by Wall St. Rank held Boston Scientific as of Q2 2026.

Based on Capstone Capital Management's 13F filing for Q2 2026, filed 20 Jul 2026.