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Castlefield Investment Partners’s Boston Scientific BSX Stock Holding History

Castlefield Investment Partners’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 		$2.43M Buy
56,907
+3,046
+6% +$165K 1.65% 26
2026
Q1 		$3.38M Buy
53,861
+6,235
+13% +$499K 2.58% 22
2025
Q4 		$4.54M Buy
+47,626
New +$4.67M 3.5% 13

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

Castlefield Investment Partners's BSX Position: Q2 2026 in Review

Castlefield Investment Partners increased its Boston Scientific (BSX) stake by 5.7% in Q2 2026, buying an estimated $165K and bringing the position to 56,907 shares worth $2.43M. The position accounts for 1.65% of the portfolio, ranked #26.

Castlefield Investment Partners first reported a position in BSX in Q4 2025 and has held it in 3 quarters since. The position peaked at $4.54M in Q4 2025. 1,473 funds tracked by Wall St. Rank hold BSX as of Q2 2026.

  • Castlefield Investment Partners held 56,907 shares of Boston Scientific worth $2.43M as of Q2 2026.
  • Castlefield Investment Partners bought 3,046 Boston Scientific shares in Q2 2026, an estimated $165K.
  • Boston Scientific made up 1.65% of Castlefield Investment Partners's portfolio in Q2 2026, its #26 holding.
  • Castlefield Investment Partners first reported a position in Boston Scientific in Q4 2025 and has held it in 3 quarters since.
  • Castlefield Investment Partners's Boston Scientific position peaked at $4.54M in Q4 2025.
  • 1,473 funds tracked by Wall St. Rank held Boston Scientific as of Q2 2026.

Based on Castlefield Investment Partners's 13F filing for Q2 2026, filed 13 Aug 2026.