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
2026 Q1	$20.6M	Buy	+327,500	New	+$26.2M	0.01%	831
2025 Q3	–	Sell	-85,000	Closed	-$9.13M	–	3545
2025 Q2	$9.13M	Sell	85,000 -15,000	-15%	-$1.52M	﹤0.01%	1021
2025 Q1	$10.1M	Buy	+100,000	New	+$10.1M	﹤0.01%	923
2022 Q4	–	Sell	-6,700	Closed	-$265	–	3989
2022 Q3	$265	Sell	6,700 -73,300	-92%	-$2.94M	﹤0.01%	3016
2022 Q2	$3.04K	Sell	80,000 -20,000	-20%	-$814K	﹤0.01%	1685
2022 Q1	$4.47M	Buy	+100,000	New	+$4.33M	﹤0.01%	1549
2020 Q1	–	Sell	-49,600	Closed	-$2.24M	–	4138
2019 Q4	$2.24M	Buy	+49,600	New	+$2.08M	﹤0.01%	1820

Other funds holding BSX

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

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 New York $166B AUM 43.98% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Bank of Montreal's BSX Position: Q1 2026 in Review

Bank of Montreal reduced its Boston Scientific (BSX) stake by 35% in Q1 2026, selling an estimated $57.3M and leaving 1,324,527 shares worth $83.1M. The position accounts for 0.03% of the portfolio, ranked #400.

Bank of Montreal first reported a position in BSX in Q2 2013 and has held it in 52 quarters since. The position peaked at $409M in Q3 2024. 1,671 funds tracked by Wall St. Rank hold BSX as of Q1 2026.

Bank of Montreal held 1,324,527 shares of Boston Scientific worth $83.1M as of Q1 2026.
Bank of Montreal sold 715,839 Boston Scientific shares in Q1 2026, an estimated $57.3M.
Boston Scientific made up 0.03% of Bank of Montreal's portfolio in Q1 2026, its #400 holding.
Bank of Montreal first reported a position in Boston Scientific in Q2 2013 and has held it in 52 quarters since.
Bank of Montreal's Boston Scientific position peaked at $409M in Q3 2024.
1,671 funds tracked by Wall St. Rank held Boston Scientific as of Q1 2026.

Based on Bank of Montreal's 13F filing for Q1 2026, filed 13 May 2026.