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Woodline Partners’s Boston Scientific BSX Stock Holding History

Woodline 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
Q1 		$18.2M Sell
290,453
-489,451
-63% -$39.2M 0.07% 361
2025
Q4 		$74.4M Buy
779,904
+316,481
+68% +$31M 0.29% 71
2025
Q3 		$45.2M Buy
463,423
+155,760
+51% +$16.1M 0.21% 129
2025
Q2 		$33M Sell
307,663
-100,223
-25% -$10.1M 0.17% 166
2025
Q1 		$41.1M Sell
407,886
-74,567
-15% -$7.51M 0.27% 113
2024
Q4 		$43.1M Sell
482,453
-27,595
-5% -$2.43M 0.29% 99
2024
Q3 		$42.7M Sell
510,048
-521,585
-51% -$41.1M 0.36% 85
2024
Q2 		$79.4M Buy
1,031,633
+844,337
+451% +$61.8M 0.76% 25
2024
Q1 		$12.8M Sell
187,296
-278,822
-60% -$17.9M 0.12% 232
2023
Q4 		$26.9M Buy
466,118
+196,075
+73% +$10.5M 0.29% 107
2023
Q3 		$14.3M Sell
270,043
-418,343
-61% -$21.9M 0.17% 174
2023
Q2 		$37.2M Sell
688,386
-194,642
-22% -$10.2M 0.44% 58
2023
Q1 		$44.2M Sell
883,028
-470,376
-35% -$22.2M 0.6% 30
2022
Q4 		$62.6M Buy
1,353,404
+88,064
+7% +$3.81M 0.84% 18
2022
Q3 		$49M Sell
1,265,340
-996,652
-44% -$40M 0.68% 25
2022
Q2 		$84.3M Buy
2,261,992
+430,333
+23% +$17.5M 1.3% 5
2022
Q1 		$81.1M Buy
+1,831,659
New +$79.4M 1.32% 5
2021
Q3 		– Sell
-1,050,527
Closed -$44.9M – 686
2021
Q2 		$44.9M Buy
+1,050,527
New +$44.2M 0.84% 24
2020
Q1 		– Sell
-832,550
Closed -$37.6M – 144
2019
Q4 		$37.6M Buy
+832,550
New +$34.8M 1.54% 23

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

Woodline Partners's BSX Position: Q1 2026 in Review

Woodline Partners reduced its Boston Scientific (BSX) stake by 63% in Q1 2026, selling an estimated $39.2M and leaving 290,453 shares worth $18.2M. The position accounts for 0.07% of the portfolio, ranked #361.

Woodline Partners first reported a position in BSX in Q4 2019 and has held it in 19 quarters since. The position peaked at $84.3M in Q2 2022. 1,664 funds tracked by Wall St. Rank hold BSX as of Q1 2026.

  • Woodline Partners held 290,453 shares of Boston Scientific worth $18.2M as of Q1 2026.
  • Woodline Partners sold 489,451 Boston Scientific shares in Q1 2026, an estimated $39.2M.
  • Boston Scientific made up 0.07% of Woodline Partners's portfolio in Q1 2026, its #361 holding.
  • Woodline Partners first reported a position in Boston Scientific in Q4 2019 and has held it in 19 quarters since.
  • Woodline Partners's Boston Scientific position peaked at $84.3M in Q2 2022.
  • 1,664 funds tracked by Wall St. Rank held Boston Scientific as of Q1 2026.

Based on Woodline Partners's 13F filing for Q1 2026, filed 15 May 2026.