Winslow Capital Management’s Boston Scientific BSX Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$295K Sell
4,708
-4,695
-50% -$376K ﹤0.01% 58
2025
Q4
$897K Sell
9,403
-535
-5% -$52.5K ﹤0.01% 53
2025
Q3
$970K Sell
9,938
-722
-7% -$74.8K ﹤0.01% 53
2025
Q2
$1.14M Sell
10,660
-2,647,680
-100% -$268M ﹤0.01% 54
2025
Q1
$268M Sell
2,658,340
-475,732
-15% -$47.9M 1.07% 35
2024
Q4
$280M Sell
3,134,072
-286,624
-8% -$25.2M 0.99% 36
2024
Q3
$287M Sell
3,420,696
-1,213,490
-26% -$95.7M 1.03% 38
2024
Q2
$357M Sell
4,634,186
-212,053
-4% -$15.5M 1.29% 30
2024
Q1
$332M Sell
4,846,239
-187,779
-4% -$12.1M 1.25% 30
2023
Q4
$291M Sell
5,034,018
-1,095,555
-18% -$58.5M 1.21% 34
2023
Q3
$324M Buy
6,129,573
+1,730,133
+39% +$90.7M 1.54% 27
2023
Q2
$238M Buy
+4,399,440
New +$230M 1.07% 34
2020
Q4
Sell
-5,458,870
Closed -$209M 64
2020
Q3
$209M Buy
5,458,870
+1,353,537
+33% +$52.2M 0.93% 41
2020
Q2
$144M Buy
+4,105,333
New +$148M 0.7% 45
2020
Q1
Sell
-4,757,016
Closed -$215M 55
2019
Q4
$215M Buy
+4,757,016
New +$199M 1.12% 36
2019
Q1
Sell
-482
Closed -$17K 73
2018
Q4
$17K Sell
482
-45
-9% -$1.63K ﹤0.01% 74
2018
Q3
$20K Sell
527
-34
-6% -$1.19K ﹤0.01% 76
2018
Q2
$18K Sell
561
-429
-43% -$12.9K ﹤0.01% 71
2018
Q1
$27K Sell
990
-5,207
-84% -$142K ﹤0.01% 66
2017
Q4
$154K Sell
6,197
-11,855,199
-100% -$327M ﹤0.01% 64
2017
Q3
$346M Buy
11,861,396
+648,613
+6% +$17.9M 1.86% 18
2017
Q2
$311M Buy
11,212,783
+2,011,640
+22% +$53.4M 1.66% 22
2017
Q1
$229M Sell
9,201,143
-3,136,583
-25% -$76.3M 1.09% 47
2016
Q4
$267M Buy
12,337,726
+2,025,932
+20% +$44.2M 1.23% 30
2016
Q3
$245M Sell
10,311,794
-867,886
-8% -$20.7M 1.02% 50
2016
Q2
$261M Sell
11,179,680
-10,896,250
-49% -$236M 1.07% 47
2016
Q1
$415M Buy
22,075,930
+819,364
+4% +$14.4M 1.63% 23
2015
Q4
$392M Buy
21,256,566
+1,641,002
+8% +$29.4M 1.4% 31
2015
Q3
$322M Buy
19,615,564
+2,152,198
+12% +$36.8M 1.17% 39
2015
Q2
$309M Buy
+17,463,366
New +$312M 1.03% 48

Other funds holding BSX

Winslow Capital Management's BSX Position: Q1 2026 in Review

Winslow Capital Management reduced its Boston Scientific (BSX) stake by 50% in Q1 2026, selling an estimated $376K and leaving 4,708 shares worth $295K. The position accounts for ﹤0.01% of the portfolio, ranked #58.

Winslow Capital Management first reported a position in BSX in Q2 2015 and has held it in 30 quarters since. The position peaked at $415M in Q1 2016. 1,664 funds tracked by Wall St. Rank hold BSX as of Q1 2026.

  • Winslow Capital Management held 4,708 shares of Boston Scientific worth $295K as of Q1 2026.
  • Winslow Capital Management sold 4,695 Boston Scientific shares in Q1 2026, an estimated $376K.
  • Boston Scientific made up ﹤0.01% of Winslow Capital Management's portfolio in Q1 2026, its #58 holding.
  • Winslow Capital Management first reported a position in Boston Scientific in Q2 2015 and has held it in 30 quarters since.
  • Winslow Capital Management's Boston Scientific position peaked at $415M in Q1 2016.
  • 1,664 funds tracked by Wall St. Rank held Boston Scientific as of Q1 2026.

Based on Winslow Capital Management's 13F filing for Q1 2026, filed 14 May 2026.