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 | $101M | Buy |
1,611,900
+951,300
| +144% | +$76.1M | 0.02% | 801 |
|
|
2025
Q4 | $63M | Buy |
660,600
+59,200
| +10% | +$5.8M | 0.01% | 1216 |
|
|
2025
Q3 | $58.7M | Sell |
601,400
-181,000
| -23% | -$18.7M | 0.01% | 1230 |
|
|
2025
Q2 | $84M | Sell |
782,400
-434,400
| -36% | -$44M | 0.01% | 881 |
|
|
2025
Q1 | $123M | Buy |
1,216,800
+572,400
| +89% | +$57.6M | 0.02% | 579 |
|
|
2024
Q4 | $57.6M | Buy |
644,400
+52,800
| +9% | +$4.65M | 0.01% | 1156 |
|
|
2024
Q3 | $49.6M | Sell |
591,600
-79,400
| -12% | -$6.26M | 0.01% | 1218 |
|
|
2024
Q2 | $51.7M | Sell |
671,000
-107,800
| -14% | -$7.89M | 0.01% | 1121 |
|
|
2024
Q1 | $53.3M | Sell |
778,800
-43,000
| -5% | -$2.76M | 0.01% | 1158 |
|
|
2023
Q4 | $47.5M | Buy |
821,800
+121,600
| +17% | +$6.49M | 0.01% | 1234 |
|
|
2023
Q3 | $37M | Buy |
700,200
+291,900
| +71% | +$15.3M | 0.01% | 1324 |
|
|
2023
Q2 | $22.1M | Sell |
408,300
-210,900
| -34% | -$11M | ﹤0.01% | 1773 |
|
|
2023
Q1 | $31M | Buy |
619,200
+62,500
| +11% | +$2.95M | 0.01% | 1509 |
|
|
2022
Q4 | $25.8M | Buy |
556,700
+86,100
| +18% | +$3.73M | 0.01% | 1697 |
|
|
2022
Q3 | $18.2M | Sell |
470,600
-97,000
| -17% | -$3.89M | ﹤0.01% | 1977 |
|
|
2022
Q2 | $21.2M | Buy |
567,600
+130,500
| +30% | +$5.31M | 0.01% | 1795 |
|
|
2022
Q1 | $19.4M | Sell |
437,100
-325,800
| -43% | -$14.1M | ﹤0.01% | 2019 |
|
|
2021
Q4 | $32.4M | Sell |
762,900
-359,100
| -32% | -$15.1M | 0.01% | 1536 |
|
|
2021
Q3 | $48.7M | Sell |
1,122,000
-526,700
| -32% | -$23.3M | 0.01% | 1143 |
|
|
2021
Q2 | $70.5M | Buy |
1,648,700
+474,200
| +40% | +$20M | 0.02% | 885 |
|
|
2021
Q1 | $45.4M | Buy |
1,174,500
+409,900
| +54% | +$15.5M | 0.01% | 1125 |
|
|
2020
Q4 | $27.5M | Buy |
764,600
+290,300
| +61% | +$10.5M | 0.01% | 1479 |
|
|
2020
Q3 | $18.1M | Sell |
474,300
-63,200
| -12% | -$2.44M | 0.01% | 1663 |
|
|
2020
Q2 | $18.9M | Sell |
537,500
-238,600
| -31% | -$8.59M | 0.01% | 1555 |
|
|
2020
Q1 | $25.3M | Buy |
776,100
+430,500
| +125% | +$16.8M | 0.01% | 1054 |
|
|
2019
Q4 | $15.6M | Sell |
345,600
-478,900
| -58% | -$20M | 0.01% | 1721 |
|
|
2019
Q3 | $33.5M | Sell |
824,500
-171,600
| -17% | -$7.27M | 0.02% | 1038 |
|
|
2019
Q2 | $42.8M | Buy |
996,100
+668,900
| +204% | +$25.7M | 0.02% | 835 |
|
|
2019
Q1 | $12.6M | Sell |
327,200
-1,100
| -0.3% | -$42K | 0.01% | 1808 |
|
|
2018
Q4 | $11.6M | Buy |
328,300
+86,800
| +36% | +$3.15M | 0.01% | 1731 |
|
|
2018
Q3 | $9.3M | Sell |
241,500
-123,300
| -34% | -$4.31M | ﹤0.01% | 2187 |
|
|
2018
Q2 | $11.9M | Buy |
364,800
+220,200
| +152% | +$6.64M | 0.01% | 1768 |
|
|
2018
Q1 | $3.95M | Buy |
144,600
+47,500
| +49% | +$1.29M | ﹤0.01% | 2742 |
|
|
2017
Q4 | $2.41M | Sell |
97,100
-85,200
| -47% | -$2.35M | ﹤0.01% | 3375 |
|
|
2017
Q3 | $5.32M | Buy |
182,300
+6,800
| +4% | +$188K | ﹤0.01% | 2248 |
|
|
2017
Q2 | $4.87M | Buy |
175,500
+3,200
| +2% | +$84.9K | ﹤0.01% | 2162 |
|
|
2017
Q1 | $4.29M | Sell |
172,300
-43,800
| -20% | -$1.07M | ﹤0.01% | 2197 |
|
|
2016
Q4 | $4.67M | Sell |
216,100
-142,500
| -40% | -$3.11M | ﹤0.01% | 2075 |
|
|
2016
Q3 | $8.54M | Buy |
358,600
+144,400
| +67% | +$3.44M | 0.01% | 1506 |
|
|
2016
Q2 | $5.01M | Sell |
214,200
-61,800
| -22% | -$1.34M | 0.01% | 1827 |
|
|
2016
Q1 | $5.19M | Buy |
276,000
+113,000
| +69% | +$1.98M | 0.01% | 1735 |
|
|
2015
Q4 | $3.01M | Buy |
163,000
+48,800
| +43% | +$874K | ﹤0.01% | 2324 |
|
|
2015
Q3 | $1.87M | Sell |
114,200
-3,200
| -3% | -$54.7K | ﹤0.01% | 3026 |
|
|
2015
Q2 | $2.08M | Sell |
117,400
-104,200
| -47% | -$1.86M | ﹤0.01% | 3021 |
|
|
2015
Q1 | $3.93M | Sell |
221,600
-7,500
| -3% | -$119K | ﹤0.01% | 2289 |
|
|
2014
Q4 | $3.04M | Buy |
229,100
+172,500
| +305% | +$2.21M | ﹤0.01% | 2473 |
|
|
2014
Q3 | $668K | Buy |
56,600
+16,600
| +42% | +$209K | ﹤0.01% | 4230 |
|
|
2014
Q2 | $511K | Sell |
40,000
-155,400
| -80% | -$2.02M | ﹤0.01% | 4353 |
|
|
2014
Q1 | $2.64M | Buy |
195,400
+69,000
| +55% | +$906K | ﹤0.01% | 2365 |
|
|
2013
Q4 | $1.52M | Sell |
126,400
-234,700
| -65% | -$2.77M | ﹤0.01% | 2807 |
|
|
2013
Q3 | $4.24M | Buy |
361,100
+55,800
| +18% | +$604K | 0.01% | 1701 |
|
|
2013
Q2 | $2.83M | Buy |
+305,300
| New | +$2.59M | ﹤0.01% | 2117 |
|
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.