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Great Lakes Advisors’s Boston Scientific BSX Stock Holding History

Great Lakes Advisors’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 		$118M Buy
1,878,772
+101,996
+6% +$8.16M 0.98% 34
2025
Q4 		$169M Sell
1,776,776
-57,625
-3% -$5.65M 1.38% 13
2025
Q3 		$179M Sell
1,834,401
-25,464
-1% -$2.64M 1.49% 10
2025
Q2 		$200M Sell
1,859,865
-208,338
-10% -$21.1M 1.67% 5
2025
Q1 		$209M Sell
2,068,203
-143,586
-6% -$14.5M 1.87% 2
2024
Q4 		$198M Sell
2,211,789
-65,630
-3% -$5.78M 1.69% 3
2024
Q3 		$191M Sell
2,277,419
-27,451
-1% -$2.16M 1.6% 5
2024
Q2 		$177M Sell
2,304,870
-89,294
-4% -$6.54M 1.57% 4
2024
Q1 		$164M Sell
2,394,164
-206,994
-8% -$13.3M 1.39% 6
2023
Q4 		$150M Sell
2,601,158
-652,914
-20% -$34.9M 1.43% 5
2023
Q3 		$172M Buy
3,254,072
+621,619
+24% +$32.6M 1.56% 5
2023
Q2 		$142M Sell
2,632,453
-526,269
-17% -$27.5M 1.42% 5
2023
Q1 		$158M Buy
3,158,722
+2,003,259
+173% +$94.4M 1.44% 7
2022
Q4 		$6.73M Sell
1,155,463
-44,077
-4% -$1.91M 0.39% 76
2022
Q3 		$46.5M Sell
1,199,540
-35,720
-3% -$1.43M 1.01% 21
2022
Q2 		$46M Buy
1,235,260
+187,804
+18% +$7.64M 0.91% 24
2022
Q1 		$46.4M Buy
1,047,456
+19,666
+2% +$852K 0.76% 32
2021
Q4 		$43.7M Buy
1,027,790
+28,812
+3% +$1.21M 0.66% 36
2021
Q3 		$43.3M Sell
998,978
-2,299
-0.2% -$102K 0.68% 36
2021
Q2 		$42.8M Buy
1,001,277
+102,748
+11% +$4.32M 0.65% 37
2021
Q1 		$34.7M Buy
898,529
+15,749
+2% +$596K 0.56% 39
2020
Q4 		$31.7M Buy
882,780
+43,588
+5% +$1.57M 0.57% 43
2020
Q3 		$32.1M Buy
839,192
+389,862
+87% +$15M 0.68% 36
2020
Q2 		$15.8M Sell
449,330
-19,245
-4% -$693K 0.38% 82
2020
Q1 		$15.3M Sell
468,575
-6,485
-1% -$253K 0.45% 59
2019
Q4 		$21.5M Buy
475,060
+3,244
+0.7% +$136K 0.46% 50
2019
Q3 		$19.2M Buy
471,816
+454,918
+2,692% +$19.3M 0.42% 54
2019
Q2 		$726K Sell
16,898
-18,823
-53% -$724K 0.02% 418
2019
Q1 		$1.37M Buy
+35,721
New +$1.36M 0.03% 377

Other funds holding BSX

BlackRock
BlackRock New York $5.72T AUM 30.48% 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 $2.9T AUM 29.55% 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

Great Lakes Advisors's BSX Position: Q1 2026 in Review

Great Lakes Advisors increased its Boston Scientific (BSX) stake by 5.7% in Q1 2026, buying an estimated $8.16M and bringing the position to 1,878,772 shares worth $118M. The position accounts for 0.98% of the portfolio, ranked #34.

Great Lakes Advisors first reported a position in BSX in Q1 2019 and has held it in 29 quarters since. The position peaked at $209M in Q1 2025. 1,664 funds tracked by Wall St. Rank hold BSX as of Q1 2026.

  • Great Lakes Advisors held 1,878,772 shares of Boston Scientific worth $118M as of Q1 2026.
  • Great Lakes Advisors bought 101,996 Boston Scientific shares in Q1 2026, an estimated $8.16M.
  • Boston Scientific made up 0.98% of Great Lakes Advisors's portfolio in Q1 2026, its #34 holding.
  • Great Lakes Advisors first reported a position in Boston Scientific in Q1 2019 and has held it in 29 quarters since.
  • Great Lakes Advisors's Boston Scientific position peaked at $209M in Q1 2025.
  • 1,664 funds tracked by Wall St. Rank held Boston Scientific as of Q1 2026.

Based on Great Lakes Advisors's 13F filing for Q1 2026, filed 12 May 2026.