BOSTON SCIENTIFIC CORP

Ticker: BSX CUSIP: 101137107 Class: COM

GATEWAY INVESTMENT ADVISERS LLC's Holding History (CIK: 0001114618)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 580,909 Value ($000) $55,390 Avg Close $98.04 Range $90.42 - $105.65

Q3 2025

Shares 580,471 Value ($000) $56,671 Avg Close $103.56 Range $95.84 - $109.50

Q2 2025

Shares 580,313 Value ($000) $62,331 Avg Close $101.18 Range $85.98 - $107.53

Q1 2025

Shares 603,863 Value ($000) $60,918 Avg Close $100.70 Range $88.81 - $107.17

Q4 2024

Shares 600,025 Value ($000) $53,594 Avg Close $88.03 Range $80.64 - $91.93

Q3 2024

Shares 605,406 Value ($000) $50,733 Avg Close $78.83 Range $71.88 - $84.89

Q2 2024

Shares 605,668 Value ($000) $46,642 Avg Close $73.20 Range $66.80 - $77.99

Q1 2024

Shares 617,350 Value ($000) $42,282 Avg Close $64.30 Range $57.11 - $68.92

Q4 2023

Shares 668,351 Value ($000) $38,637 Avg Close $53.38 Range $48.35 - $58.34

Q3 2023

Shares 678,066 Value ($000) $35,802 Avg Close $52.45 Range $49.69 - $55.38

Q2 2023

Shares 678,303 Value ($000) $36,689 Avg Close $52.23 Range $49.38 - $54.75

Q1 2023

Shares 795,423 Value ($000) $39,795 Avg Close $47.13 Range $44.35 - $50.21

Q4 2022

Shares 701,711 Value ($000) $32,468 Avg Close $43.30 Range $38.79 - $47.95

Q3 2022

Shares 701,373 Value ($000) $27,164 Avg Close $40.12 Range $36.15 - $43.52

Q2 2022

Shares 701,920 Value ($000) $26,161 Avg Close $40.71 Range $34.98 - $47.50

Q1 2022

Shares 702,202 Value ($000) $31,101 Avg Close $43.34 Range $40.80 - $45.32

Q4 2021

Shares 702,524 Value ($000) $29,843 Avg Close $42.02 Range $37.96 - $45.43

Q3 2021

Shares 704,243 Value ($000) $30,557 Avg Close $44.24 Range $40.93 - $46.29

Q2 2021

Shares 704,849 Value ($000) $30,139 Avg Close $42.07 Range $38.00 - $44.63

Q1 2021

Shares 801,759 Value ($000) $30,988 Avg Close $37.85 Range $34.58 - $40.13

Q4 2020

Shares 802,028 Value ($000) $28,833 Avg Close $36.04 Range $32.99 - $42.13

Q3 2020

Shares 826,495 Value ($000) $31,580 Avg Close $38.53 Range $33.77 - $42.37

Q2 2020

Shares 827,311 Value ($000) $29,047 Avg Close $36.01 Range $29.65 - $39.33

Q1 2020

Shares 829,210 Value ($000) $27,057 Avg Close $39.07 Range $24.10 - $46.13

Q4 2019

Shares 792,818 Value ($000) $35,851 Avg Close $41.84 Range $37.65 - $46.62

Q3 2019

Shares 789,906 Value ($000) $32,141 Avg Close $42.37 Range $39.75 - $43.84

Q2 2019

Shares 813,480 Value ($000) $34,963 Avg Close $38.46 Range $34.35 - $43.02

Q1 2019

Shares 784,236 Value ($000) $30,099 Avg Close $38.19 Range $32.73 - $41.00

Q4 2018

Shares 786,408 Value ($000) $27,792 Avg Close $36.27 Range $31.56 - $39.44

Q3 2018

Shares 720,452 Value ($000) $27,737 Avg Close $34.93 Range $32.27 - $39.13

Q2 2018

Shares 880,663 Value ($000) $28,798 Avg Close $30.16 Range $26.42 - $37.30

Q1 2018

Shares 915,646 Value ($000) $25,015 Avg Close $27.18 Range $24.84 - $28.90

Q4 2017

Shares 976,714 Value ($000) $24,213 Avg Close $27.58 Range $24.54 - $29.93

Q3 2017

Shares 1,173,182 Value ($000) $34,222 Avg Close $27.62 Range $26.23 - $29.40

Q2 2017

Shares 1,250,071 Value ($000) $34,652 Avg Close $26.54 Range $24.29 - $28.51

Q1 2017

Shares 1,153,432 Value ($000) $28,686 Avg Close $24.32 Range $21.66 - $25.65

Q4 2016

Shares 1,382,862 Value ($000) $29,911 Avg Close $21.82 Range $19.67 - $23.88

Q3 2016

Shares 1,381,217 Value ($000) $32,873 Avg Close $23.86 Range $22.95 - $24.79

Q2 2016

Shares 1,382,103 Value ($000) $32,300 Avg Close $21.63 Range $18.65 - $23.37

Q1 2016

Shares 1,383,872 Value ($000) $26,031 Avg Close $17.57 Range $15.67 - $18.89

Q4 2015

Shares 1,518,700 Value ($000) $28,005 Avg Close $17.92 Range $16.25 - $19.06

Q3 2015

Shares 1,513,693 Value ($000) $24,840 Avg Close $17.09 Range $14.18 - $18.11

Q2 2015

Shares 1,231,933 Value ($000) $21,805 Avg Close $17.87 Range $17.12 - $18.62

Q1 2015

Shares 1,515,361 Value ($000) $26,898 Avg Close $15.80 Range $13.14 - $18.17

Q4 2014

Shares 1,516,168 Value ($000) $20,089 Avg Close $12.78 Range $11.10 - $13.76

Q3 2014

Shares 1,612,648 Value ($000) $19,045 Avg Close $12.59 Range $11.76 - $13.34

Q2 2014

Shares 1,611,873 Value ($000) $20,584 Avg Close $13.00 Range $12.28 - $13.90

Q1 2014

Shares 1,590,273 Value ($000) $21,500 Avg Close $13.13 Range $11.85 - $14.08

Q4 2013

Shares 1,594,460 Value ($000) $19,165 Avg Close $11.81 Range $11.12 - $12.48

Q3 2013

Shares 1,600,060 Value ($000) $18,785 Avg Close $10.82 Range $9.05 - $12.16

Q2 2013

Shares 1,590,111 Value ($000) $14,740 Avg Close $8.48 Range $7.07 - $9.75

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	580,909	$55,390	$98.04	$90.42 - $105.65
Q3 2025	580,471	$56,671	$103.56	$95.84 - $109.50
Q2 2025	580,313	$62,331	$101.18	$85.98 - $107.53
Q1 2025	603,863	$60,918	$100.70	$88.81 - $107.17
Q4 2024	600,025	$53,594	$88.03	$80.64 - $91.93
Q3 2024	605,406	$50,733	$78.83	$71.88 - $84.89
Q2 2024	605,668	$46,642	$73.20	$66.80 - $77.99
Q1 2024	617,350	$42,282	$64.30	$57.11 - $68.92
Q4 2023	668,351	$38,637	$53.38	$48.35 - $58.34
Q3 2023	678,066	$35,802	$52.45	$49.69 - $55.38
Q2 2023	678,303	$36,689	$52.23	$49.38 - $54.75
Q1 2023	795,423	$39,795	$47.13	$44.35 - $50.21
Q4 2022	701,711	$32,468	$43.30	$38.79 - $47.95
Q3 2022	701,373	$27,164	$40.12	$36.15 - $43.52
Q2 2022	701,920	$26,161	$40.71	$34.98 - $47.50
Q1 2022	702,202	$31,101	$43.34	$40.80 - $45.32
Q4 2021	702,524	$29,843	$42.02	$37.96 - $45.43
Q3 2021	704,243	$30,557	$44.24	$40.93 - $46.29
Q2 2021	704,849	$30,139	$42.07	$38.00 - $44.63
Q1 2021	801,759	$30,988	$37.85	$34.58 - $40.13
Q4 2020	802,028	$28,833	$36.04	$32.99 - $42.13
Q3 2020	826,495	$31,580	$38.53	$33.77 - $42.37
Q2 2020	827,311	$29,047	$36.01	$29.65 - $39.33
Q1 2020	829,210	$27,057	$39.07	$24.10 - $46.13
Q4 2019	792,818	$35,851	$41.84	$37.65 - $46.62
Q3 2019	789,906	$32,141	$42.37	$39.75 - $43.84
Q2 2019	813,480	$34,963	$38.46	$34.35 - $43.02
Q1 2019	784,236	$30,099	$38.19	$32.73 - $41.00
Q4 2018	786,408	$27,792	$36.27	$31.56 - $39.44
Q3 2018	720,452	$27,737	$34.93	$32.27 - $39.13
Q2 2018	880,663	$28,798	$30.16	$26.42 - $37.30
Q1 2018	915,646	$25,015	$27.18	$24.84 - $28.90
Q4 2017	976,714	$24,213	$27.58	$24.54 - $29.93
Q3 2017	1,173,182	$34,222	$27.62	$26.23 - $29.40
Q2 2017	1,250,071	$34,652	$26.54	$24.29 - $28.51
Q1 2017	1,153,432	$28,686	$24.32	$21.66 - $25.65
Q4 2016	1,382,862	$29,911	$21.82	$19.67 - $23.88
Q3 2016	1,381,217	$32,873	$23.86	$22.95 - $24.79
Q2 2016	1,382,103	$32,300	$21.63	$18.65 - $23.37
Q1 2016	1,383,872	$26,031	$17.57	$15.67 - $18.89
Q4 2015	1,518,700	$28,005	$17.92	$16.25 - $19.06
Q3 2015	1,513,693	$24,840	$17.09	$14.18 - $18.11
Q2 2015	1,231,933	$21,805	$17.87	$17.12 - $18.62
Q1 2015	1,515,361	$26,898	$15.80	$13.14 - $18.17
Q4 2014	1,516,168	$20,089	$12.78	$11.10 - $13.76
Q3 2014	1,612,648	$19,045	$12.59	$11.76 - $13.34
Q2 2014	1,611,873	$20,584	$13.00	$12.28 - $13.90
Q1 2014	1,590,273	$21,500	$13.13	$11.85 - $14.08
Q4 2013	1,594,460	$19,165	$11.81	$11.12 - $12.48
Q3 2013	1,600,060	$18,785	$10.82	$9.05 - $12.16
Q2 2013	1,590,111	$14,740	$8.48	$7.07 - $9.75