Bank of Montreal
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Bank of Montreal’s Boston Scientific BSX Stock Holding History

Bank of Montreal’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
2022
Q4 		– Sell
-74,600
Closed -$2.94M – 3990
2022
Q3 		$2.94M Buy
+74,600
New +$2.99M ﹤0.01% 1625
2022
Q2 		– Sell
-100
Closed -$4K – 4108
2022
Q1 		$4K Buy
+100
New +$4.33K ﹤0.01% 4075
2019
Q4 		– Sell
-52,500
Closed -$2.14M – 4857
2019
Q3 		$2.14M Buy
+52,500
New +$2.22M ﹤0.01% 1647

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 $3.38T AUM 44.17% 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

Bank of Montreal's BSX Position: Q2 2026 in Review

Bank of Montreal increased its Boston Scientific (BSX) stake by 3.8% in Q2 2026, buying an estimated $2.71M and bringing the position to 1,374,431 shares worth $58.7M. The position accounts for 0.02% of the portfolio, ranked #556.

Bank of Montreal first reported a position in BSX in Q2 2013 and has held it in 53 quarters since. The position peaked at $409M in Q3 2024. 1,486 funds tracked by Wall St. Rank hold BSX as of Q2 2026.

  • Bank of Montreal held 1,374,431 shares of Boston Scientific worth $58.7M as of Q2 2026.
  • Bank of Montreal bought 49,904 Boston Scientific shares in Q2 2026, an estimated $2.71M.
  • Boston Scientific made up 0.02% of Bank of Montreal's portfolio in Q2 2026, its #556 holding.
  • Bank of Montreal first reported a position in Boston Scientific in Q2 2013 and has held it in 53 quarters since.
  • Bank of Montreal's Boston Scientific position peaked at $409M in Q3 2024.
  • 1,486 funds tracked by Wall St. Rank held Boston Scientific as of Q2 2026.

Based on Bank of Montreal's 13F filing for Q2 2026, filed 12 Aug 2026.