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
2026
Q1 		$83.1M Sell
1,324,527
-715,839
-35% -$57.3M 0.03% 400
2025
Q4 		$195M Sell
2,040,366
-97,682
-5% -$9.58M 0.07% 218
2025
Q3 		$209M Buy
2,138,048
+117,554
+6% +$12.2M 0.08% 184
2025
Q2 		$217M Sell
2,020,494
-113,247
-5% -$11.5M 0.1% 142
2025
Q1 		$215M Sell
2,133,741
-242,939
-10% -$24.5M 0.1% 148
2024
Q4 		$212M Sell
2,376,680
-2,524,800
-52% -$222M 0.1% 156
2024
Q3 		$409M Sell
4,901,480
-335,299
-6% -$26.4M 0.18% 103
2024
Q2 		$406M Buy
5,236,779
+62,102
+1% +$4.55M 0.12% 105
2024
Q1 		$355M Sell
5,174,677
-76,504
-1% -$4.92M 0.11% 119
2023
Q4 		$305M Buy
5,251,181
+309,563
+6% +$16.5M 0.09% 126
2023
Q3 		$262M Buy
4,941,618
+726,885
+17% +$38.1M 0.09% 132
2023
Q2 		$230M Buy
4,214,733
+1,611,740
+62% +$84.2M 0.08% 133
2023
Q1 		$130M Buy
2,602,993
+1,115,282
+75% +$52.6M 0.05% 201
2022
Q4 		$69M Sell
1,487,711
-1,584,278
-52% -$68.6M 0.03% 312
2022
Q3 		$121K Buy
3,071,989
+681,252
+28% +$27.3M 0.05% 207
2022
Q2 		$90.7K Sell
2,390,737
-53,144
-2% -$2.16M 0.04% 264
2022
Q1 		$109M Buy
2,443,881
+636,639
+35% +$27.6M 0.05% 250
2021
Q4 		$77.7M Sell
1,807,242
-112,363
-6% -$4.72M 0.04% 323
2021
Q3 		$84.6M Buy
1,919,605
+190,182
+11% +$8.41M 0.04% 390
2021
Q2 		$74.8M Buy
1,729,423
+481,644
+39% +$20.3M 0.04% 394
2021
Q1 		$48.3M Sell
1,247,779
-274,612
-18% -$10.4M 0.03% 405
2020
Q4 		$55.5M Buy
1,522,391
+656,855
+76% +$23.7M 0.04% 391
2020
Q3 		$34M Buy
865,536
+38,561
+5% +$1.49M 0.03% 425
2020
Q2 		$28.5M Buy
826,975
+151,293
+22% +$5.45M 0.03% 475
2020
Q1 		$21M Sell
675,682
-324,293
-32% -$12.7M 0.02% 482
2019
Q4 		$45.2M Buy
999,975
+110,829
+12% +$4.64M 0.03% 425
2019
Q3 		$36.2M Buy
889,146
+127,157
+17% +$5.39M 0.03% 445
2019
Q2 		$32.8M Sell
761,989
-40,735
-5% -$1.57M 0.03% 483
2019
Q1 		$30.8M Sell
802,724
-216,598
-21% -$8.27M 0.03% 477
2018
Q4 		$36M Sell
1,019,322
-63,850
-6% -$2.32M 0.03% 405
2018
Q3 		$41.7M Buy
1,083,172
+239,664
+28% +$8.37M 0.03% 415
2018
Q2 		$27.6M Sell
843,508
-1,029,428
-55% -$31M 0.02% 514
2018
Q1 		$51.2M Sell
1,872,936
-895,042
-32% -$24.3M 0.05% 355
2017
Q4 		$68.6M Buy
2,767,978
+727,508
+36% +$20.1M 0.06% 296
2017
Q3 		$59.5M Buy
2,040,470
+1,463,609
+254% +$40.4M 0.05% 301
2017
Q2 		$16M Buy
576,861
+65,725
+13% +$1.74M 0.02% 657
2017
Q1 		$12.7M Buy
511,136
+11,611
+2% +$282K 0.01% 720
2016
Q4 		$10.2M Sell
499,525
-91,683
-16% -$2M 0.01% 805
2016
Q3 		$14.1M Buy
591,208
+21,680
+4% +$517K 0.02% 673
2016
Q2 		$13.3M Buy
569,528
+85,701
+18% +$1.85M 0.02% 686
2016
Q1 		$9.1M Sell
483,827
-38,917
-7% -$684K 0.01% 768
2015
Q4 		$9.64M Buy
522,744
+80,052
+18% +$1.43M 0.01% 737
2015
Q3 		$7.26M Sell
442,692
-353,915
-44% -$6.05M 0.01% 837
2015
Q2 		$14.1M Sell
796,607
-346,974
-30% -$6.2M 0.02% 654
2015
Q1 		$20.3M Buy
1,143,581
+33,069
+3% +$523K 0.02% 500
2014
Q4 		$14.7M Buy
1,110,512
+775,588
+232% +$9.92M 0.02% 608
2014
Q3 		$3.96M Buy
334,924
+33,227
+11% +$418K ﹤0.01% 1180
2014
Q2 		$3.85M Buy
301,697
+47,503
+19% +$618K ﹤0.01% 1188
2014
Q1 		$3.44M Sell
254,194
-44,451
-15% -$583K ﹤0.01% 1089
2013
Q4 		$3.59M Buy
298,645
+43,479
+17% +$514K ﹤0.01% 955
2013
Q3 		$3M Buy
255,166
+94,093
+58% +$1.02M ﹤0.01% 983
2013
Q2 		$1.49M Buy
+161,073
New +$1.37M ﹤0.01% 1223

Other funds holding BSX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
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 $3.37T AUM 44.26% 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

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.