Citadel Advisors’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 | $57.1M | Buy |
910,400
+310,400
| +52% | +$24.8M | 0.01% | 1241 |
|
|
2025
Q4 | $57.2M | Buy |
600,000
+96,700
| +19% | +$9.48M | 0.01% | 1293 |
|
|
2025
Q3 | $49.1M | Buy |
503,300
+33,300
| +7% | +$3.45M | 0.01% | 1391 |
|
|
2025
Q2 | $50.5M | Buy |
470,000
+57,200
| +14% | +$5.79M | 0.01% | 1240 |
|
|
2025
Q1 | $41.6M | Buy |
412,800
+37,700
| +10% | +$3.8M | 0.01% | 1294 |
|
|
2024
Q4 | $33.5M | Buy |
375,100
+88,100
| +31% | +$7.76M | 0.01% | 1636 |
|
|
2024
Q3 | $24.1M | Sell |
287,000
-21,800
| -7% | -$1.72M | ﹤0.01% | 1858 |
|
|
2024
Q2 | $23.8M | Buy |
308,800
+113,100
| +58% | +$8.28M | ﹤0.01% | 1823 |
|
|
2024
Q1 | $13.4M | Sell |
195,700
-475,800
| -71% | -$30.6M | ﹤0.01% | 2546 |
|
|
2023
Q4 | $38.8M | Sell |
671,500
-280,200
| -29% | -$15M | 0.01% | 1380 |
|
|
2023
Q3 | $50.2M | Buy |
951,700
+579,700
| +156% | +$30.4M | 0.01% | 1073 |
|
|
2023
Q2 | $20.1M | Sell |
372,000
-180,000
| -33% | -$9.4M | ﹤0.01% | 1880 |
|
|
2023
Q1 | $27.6M | Buy |
552,000
+390,000
| +241% | +$18.4M | 0.01% | 1608 |
|
|
2022
Q4 | $7.5M | Sell |
162,000
-290,200
| -64% | -$12.6M | ﹤0.01% | 3226 |
|
|
2022
Q3 | $17.5M | Sell |
452,200
-588,800
| -57% | -$23.6M | ﹤0.01% | 2023 |
|
|
2022
Q2 | $38.8M | Buy |
1,041,000
+291,300
| +39% | +$11.9M | 0.01% | 1218 |
|
|
2022
Q1 | $33.2M | Buy |
749,700
+5,900
| +0.8% | +$256K | 0.01% | 1449 |
|
|
2021
Q4 | $31.6M | Sell |
743,800
-612,500
| -45% | -$25.7M | 0.01% | 1552 |
|
|
2021
Q3 | $58.9M | Sell |
1,356,300
-38,400
| -3% | -$1.7M | 0.01% | 1001 |
|
|
2021
Q2 | $59.6M | Buy |
1,394,700
+168,500
| +14% | +$7.09M | 0.01% | 992 |
|
|
2021
Q1 | $47.4M | Buy |
1,226,200
+663,200
| +118% | +$25.1M | 0.01% | 1088 |
|
|
2020
Q4 | $20.2M | Sell |
563,000
-265,600
| -32% | -$9.57M | 0.01% | 1787 |
|
|
2020
Q3 | $31.7M | Buy |
828,600
+218,400
| +36% | +$8.42M | 0.01% | 1172 |
|
|
2020
Q2 | $21.4M | Buy |
610,200
+321,000
| +111% | +$11.6M | 0.01% | 1448 |
|
|
2020
Q1 | $9.44M | Buy |
289,200
+94,800
| +49% | +$3.7M | ﹤0.01% | 1916 |
|
|
2019
Q4 | $8.79M | Sell |
194,400
-194,400
| -50% | -$8.13M | ﹤0.01% | 2340 |
|
|
2019
Q3 | $15.8M | Sell |
388,800
-79,800
| -17% | -$3.38M | 0.01% | 1705 |
|
|
2019
Q2 | $20.1M | Buy |
468,600
+148,100
| +46% | +$5.7M | 0.01% | 1422 |
|
|
2019
Q1 | $12.3M | Buy |
320,500
+93,700
| +41% | +$3.58M | 0.01% | 1831 |
|
|
2018
Q4 | $8.02M | Sell |
226,800
-107,800
| -32% | -$3.91M | ﹤0.01% | 2160 |
|
|
2018
Q3 | $12.9M | Buy |
334,600
+62,200
| +23% | +$2.17M | 0.01% | 1824 |
|
|
2018
Q2 | $8.91M | Buy |
272,400
+183,500
| +206% | +$5.53M | ﹤0.01% | 2063 |
|
|
2018
Q1 | $2.43M | Sell |
88,900
-181,700
| -67% | -$4.94M | ﹤0.01% | 3439 |
|
|
2017
Q4 | $6.71M | Buy |
270,600
+194,800
| +257% | +$5.37M | ﹤0.01% | 2141 |
|
|
2017
Q3 | $2.21M | Sell |
75,800
-49,100
| -39% | -$1.36M | ﹤0.01% | 3289 |
|
|
2017
Q2 | $3.46M | Buy |
124,900
+72,000
| +136% | +$1.91M | ﹤0.01% | 2513 |
|
|
2017
Q1 | $1.32M | Sell |
52,900
-226,200
| -81% | -$5.5M | ﹤0.01% | 3596 |
|
|
2016
Q4 | $6.04M | Buy |
279,100
+178,300
| +177% | +$3.89M | 0.01% | 1796 |
|
|
2016
Q3 | $2.4M | Buy |
100,800
+22,400
| +29% | +$534K | ﹤0.01% | 2755 |
|
|
2016
Q2 | $1.83M | Buy |
78,400
+46,100
| +143% | +$997K | ﹤0.01% | 2845 |
|
|
2016
Q1 | $608K | Sell |
32,300
-81,200
| -72% | -$1.43M | ﹤0.01% | 4130 |
|
|
2015
Q4 | $2.09M | Buy |
113,500
+28,500
| +34% | +$511K | ﹤0.01% | 2688 |
|
|
2015
Q3 | $1.4M | Buy |
85,000
+9,800
| +13% | +$168K | ﹤0.01% | 3382 |
|
|
2015
Q2 | $1.33M | Buy |
75,200
+4,600
| +7% | +$82.2K | ﹤0.01% | 3592 |
|
|
2015
Q1 | $1.25M | Sell |
70,600
-19,600
| -22% | -$310K | ﹤0.01% | 3647 |
|
|
2014
Q4 | $1.2M | Sell |
90,200
-91,400
| -50% | -$1.17M | ﹤0.01% | 3540 |
|
|
2014
Q3 | $2.15M | Buy |
181,600
+57,600
| +46% | +$725K | ﹤0.01% | 2783 |
|
|
2014
Q2 | $1.58M | Sell |
124,000
-400
| -0.3% | -$5.2K | ﹤0.01% | 2967 |
|
|
2014
Q1 | $1.68M | Sell |
124,400
-388,700
| -76% | -$5.1M | ﹤0.01% | 2834 |
|
|
2013
Q4 | $6.17M | Buy |
513,100
+370,200
| +259% | +$4.37M | 0.01% | 1528 |
|
|
2013
Q3 | $1.68M | Sell |
142,900
-3,200
| -2% | -$34.6K | ﹤0.01% | 2575 |
|
|
2013
Q2 | $1.35M | Buy |
+146,100
| New | +$1.24M | ﹤0.01% | 2879 |
|
Other funds holding BSX
VCM
VPM
Citadel Advisors's BSX Position: Q1 2026 in Review
Citadel Advisors reduced its Boston Scientific (BSX) stake by 12% in Q1 2026, selling an estimated $44.7M and leaving 4,217,314 shares worth $265M. The position accounts for 0.04% of the portfolio, ranked #342.
Citadel Advisors first reported a position in BSX in Q2 2013 and has held it in 51 quarters since. The position peaked at $1.12B in Q3 2023. 1,664 funds tracked by Wall St. Rank hold BSX as of Q1 2026.
- Citadel Advisors held 4,217,314 shares of Boston Scientific worth $265M as of Q1 2026.
- Citadel Advisors sold 558,304 Boston Scientific shares in Q1 2026, an estimated $44.7M.
- Boston Scientific made up 0.04% of Citadel Advisors's portfolio in Q1 2026, its #342 holding.
- Citadel Advisors first reported a position in Boston Scientific in Q2 2013 and has held it in 51 quarters since.
- Citadel Advisors's Boston Scientific position peaked at $1.12B in Q3 2023.
- 1,664 funds tracked by Wall St. Rank held Boston Scientific as of Q1 2026.
Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.