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 | $265M | Sell |
4,217,314
-558,304
| -12% | -$44.7M | 0.04% | 342 |
|
|
2025
Q4 | $455M | Sell |
4,775,618
-4,130,627
| -46% | -$405M | 0.07% | 211 |
|
|
2025
Q3 | $870M | Buy |
8,906,245
+3,501,940
| +65% | +$363M | 0.13% | 92 |
|
|
2025
Q2 | $580M | Sell |
5,404,305
-29,250
| -0.5% | -$2.96M | 0.1% | 141 |
|
|
2025
Q1 | $548M | Buy |
5,433,555
+502,103
| +10% | +$50.6M | 0.1% | 113 |
|
|
2024
Q4 | $440M | Sell |
4,931,452
-4,861,651
| -50% | -$428M | 0.08% | 176 |
|
|
2024
Q3 | $821M | Sell |
9,793,103
-2,706,764
| -22% | -$213M | 0.16% | 73 |
|
|
2024
Q2 | $963M | Buy |
12,499,867
+3,725,802
| +42% | +$273M | 0.19% | 66 |
|
|
2024
Q1 | $601M | Sell |
8,774,065
-207,469
| -2% | -$13.3M | 0.12% | 105 |
|
|
2023
Q4 | $519M | Sell |
8,981,534
-12,174,688
| -58% | -$650M | 0.1% | 102 |
|
|
2023
Q3 | $1.12B | Buy |
21,156,222
+5,699,874
| +37% | +$299M | 0.24% | 38 |
|
|
2023
Q2 | $836M | Buy |
15,456,348
+444,201
| +3% | +$23.2M | 0.17% | 51 |
|
|
2023
Q1 | $751M | Buy |
15,012,147
+8,477,836
| +130% | +$400M | 0.17% | 57 |
|
|
2022
Q4 | $302M | Sell |
6,534,311
-7,957,191
| -55% | -$345M | 0.07% | 198 |
|
|
2022
Q3 | $561M | Buy |
14,491,502
+1,960,393
| +16% | +$78.6M | 0.13% | 78 |
|
|
2022
Q2 | $467M | Sell |
12,531,109
-412,621
| -3% | -$16.8M | 0.12% | 102 |
|
|
2022
Q1 | $573M | Buy |
12,943,730
+6,424,582
| +99% | +$278M | 0.12% | 90 |
|
|
2021
Q4 | $277M | Buy |
6,519,148
+1,785,342
| +38% | +$75M | 0.06% | 237 |
|
|
2021
Q3 | $205M | Sell |
4,733,806
-747,071
| -14% | -$33.1M | 0.04% | 329 |
|
|
2021
Q2 | $234M | Buy |
5,480,877
+4,646,664
| +557% | +$195M | 0.05% | 267 |
|
|
2021
Q1 | $32.2M | Sell |
834,213
-4,295,293
| -84% | -$163M | 0.01% | 1445 |
|
|
2020
Q4 | $184M | Buy |
5,129,506
+4,723,216
| +1,163% | +$170M | 0.05% | 287 |
|
|
2020
Q3 | $15.5M | Buy |
406,290
+321,066
| +377% | +$12.4M | ﹤0.01% | 1800 |
|
|
2020
Q2 | $2.99M | Sell |
85,224
-8,558,697
| -99% | -$308M | ﹤0.01% | 3875 |
|
|
2020
Q1 | $282M | Buy |
8,643,921
+2,799,798
| +48% | +$109M | 0.13% | 75 |
|
|
2019
Q4 | $264M | Buy |
5,844,123
+194,161
| +3% | +$8.12M | 0.11% | 120 |
|
|
2019
Q3 | $230M | Sell |
5,649,962
-297,408
| -5% | -$12.6M | 0.11% | 124 |
|
|
2019
Q2 | $256M | Buy |
5,947,370
+5,085,713
| +590% | +$196M | 0.12% | 111 |
|
|
2019
Q1 | $33.1M | Sell |
861,657
-3,125,638
| -78% | -$119M | 0.02% | 946 |
|
|
2018
Q4 | $141M | Sell |
3,987,295
-4,179,487
| -51% | -$152M | 0.08% | 217 |
|
|
2018
Q3 | $314M | Buy |
8,166,782
+1,318,868
| +19% | +$46.1M | 0.14% | 88 |
|
|
2018
Q2 | $224M | Buy |
6,847,914
+4,670,982
| +215% | +$141M | 0.11% | 130 |
|
|
2018
Q1 | $59.5M | Buy |
2,176,932
+1,567,167
| +257% | +$42.6M | 0.03% | 520 |
|
|
2017
Q4 | $15.1M | Sell |
609,765
-1,467,135
| -71% | -$40.5M | 0.01% | 1363 |
|
|
2017
Q3 | $60.6M | Buy |
2,076,900
+528,094
| +34% | +$14.6M | 0.05% | 450 |
|
|
2017
Q2 | $42.9M | Buy |
1,548,806
+311,867
| +25% | +$8.28M | 0.04% | 566 |
|
|
2017
Q1 | $30.8M | Sell |
1,236,939
-6,740,748
| -84% | -$164M | 0.03% | 695 |
|
|
2016
Q4 | $173M | Buy |
7,977,687
+3,139,288
| +65% | +$68.5M | 0.17% | 80 |
|
|
2016
Q3 | $115M | Sell |
4,838,399
-9,854,699
| -67% | -$235M | 0.12% | 133 |
|
|
2016
Q2 | $343M | Buy |
14,693,098
+13,815,151
| +1,574% | +$299M | 0.38% | 21 |
|
|
2016
Q1 | $16.5M | Sell |
877,947
-2,667,126
| -75% | -$46.9M | 0.02% | 864 |
|
|
2015
Q4 | $65.4M | Buy |
3,545,073
+3,521,705
| +15,071% | +$63.1M | 0.07% | 295 |
|
|
2015
Q3 | $383K | Buy |
+23,368
| New | +$399K | ﹤0.01% | 5187 |
|
|
2015
Q2 | – | Sell |
-1,049,809
| Closed | -$18.8M | – | 8738 |
|
|
2015
Q1 | $18.6M | Buy |
1,049,809
+223,899
| +27% | +$3.54M | 0.02% | 1015 |
|
|
2014
Q4 | $10.9M | Sell |
825,910
-2,974,593
| -78% | -$38M | 0.01% | 1339 |
|
|
2014
Q3 | $44.9M | Buy |
3,800,503
+3,604,004
| +1,834% | +$45.4M | 0.05% | 472 |
|
|
2014
Q2 | $2.51M | Sell |
196,499
-6,218,338
| -97% | -$80.9M | ﹤0.01% | 2512 |
|
|
2014
Q1 | $86.7M | Buy |
6,414,837
+2,606,415
| +68% | +$34.2M | 0.1% | 205 |
|
|
2013
Q4 | $45.8M | Sell |
3,808,422
-205,529
| -5% | -$2.43M | 0.06% | 394 |
|
|
2013
Q3 | $47.1M | Sell |
4,013,951
-415,765
| -9% | -$4.5M | 0.07% | 343 |
|
|
2013
Q2 | $41.1M | Buy |
+4,429,716
| New | +$37.6M | 0.07% | 316 |
|
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.